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e075ae69 | 1 | /* Subroutines used for code generation on IA-32. |
07933f72 | 2 | Copyright (C) 1988, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, |
e129d93a | 3 | 2002, 2003, 2004 Free Software Foundation, Inc. |
2a2ab3f9 | 4 | |
188fc5b5 | 5 | This file is part of GCC. |
2a2ab3f9 | 6 | |
188fc5b5 | 7 | GCC is free software; you can redistribute it and/or modify |
2a2ab3f9 JVA |
8 | it under the terms of the GNU General Public License as published by |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
188fc5b5 | 12 | GCC is distributed in the hope that it will be useful, |
2a2ab3f9 JVA |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
188fc5b5 | 18 | along with GCC; see the file COPYING. If not, write to |
97aadbb9 | 19 | the Free Software Foundation, 59 Temple Place - Suite 330, |
0f290768 | 20 | Boston, MA 02111-1307, USA. */ |
2a2ab3f9 | 21 | |
2a2ab3f9 | 22 | #include "config.h" |
bb5177ac | 23 | #include "system.h" |
4977bab6 ZW |
24 | #include "coretypes.h" |
25 | #include "tm.h" | |
2a2ab3f9 | 26 | #include "rtl.h" |
6baf1cc8 BS |
27 | #include "tree.h" |
28 | #include "tm_p.h" | |
2a2ab3f9 JVA |
29 | #include "regs.h" |
30 | #include "hard-reg-set.h" | |
31 | #include "real.h" | |
32 | #include "insn-config.h" | |
33 | #include "conditions.h" | |
2a2ab3f9 JVA |
34 | #include "output.h" |
35 | #include "insn-attr.h" | |
2a2ab3f9 | 36 | #include "flags.h" |
a8ffcc81 | 37 | #include "except.h" |
ecbc4695 | 38 | #include "function.h" |
00c79232 | 39 | #include "recog.h" |
ced8dd8c | 40 | #include "expr.h" |
e78d8e51 | 41 | #include "optabs.h" |
f103890b | 42 | #include "toplev.h" |
e075ae69 | 43 | #include "basic-block.h" |
1526a060 | 44 | #include "ggc.h" |
672a6f42 NB |
45 | #include "target.h" |
46 | #include "target-def.h" | |
f1e639b1 | 47 | #include "langhooks.h" |
dafc5b82 | 48 | #include "cgraph.h" |
2a2ab3f9 | 49 | |
8dfe5673 | 50 | #ifndef CHECK_STACK_LIMIT |
07933f72 | 51 | #define CHECK_STACK_LIMIT (-1) |
8dfe5673 RK |
52 | #endif |
53 | ||
3c50106f RH |
54 | /* Return index of given mode in mult and division cost tables. */ |
55 | #define MODE_INDEX(mode) \ | |
56 | ((mode) == QImode ? 0 \ | |
57 | : (mode) == HImode ? 1 \ | |
58 | : (mode) == SImode ? 2 \ | |
59 | : (mode) == DImode ? 3 \ | |
60 | : 4) | |
61 | ||
2ab0437e | 62 | /* Processor costs (relative to an add) */ |
fce5a9f2 | 63 | static const |
2ab0437e JH |
64 | struct processor_costs size_cost = { /* costs for tunning for size */ |
65 | 2, /* cost of an add instruction */ | |
66 | 3, /* cost of a lea instruction */ | |
67 | 2, /* variable shift costs */ | |
68 | 3, /* constant shift costs */ | |
4977bab6 | 69 | {3, 3, 3, 3, 5}, /* cost of starting a multiply */ |
2ab0437e | 70 | 0, /* cost of multiply per each bit set */ |
4977bab6 | 71 | {3, 3, 3, 3, 5}, /* cost of a divide/mod */ |
44cf5b6a JH |
72 | 3, /* cost of movsx */ |
73 | 3, /* cost of movzx */ | |
2ab0437e JH |
74 | 0, /* "large" insn */ |
75 | 2, /* MOVE_RATIO */ | |
76 | 2, /* cost for loading QImode using movzbl */ | |
77 | {2, 2, 2}, /* cost of loading integer registers | |
78 | in QImode, HImode and SImode. | |
79 | Relative to reg-reg move (2). */ | |
80 | {2, 2, 2}, /* cost of storing integer registers */ | |
81 | 2, /* cost of reg,reg fld/fst */ | |
82 | {2, 2, 2}, /* cost of loading fp registers | |
83 | in SFmode, DFmode and XFmode */ | |
84 | {2, 2, 2}, /* cost of loading integer registers */ | |
85 | 3, /* cost of moving MMX register */ | |
86 | {3, 3}, /* cost of loading MMX registers | |
87 | in SImode and DImode */ | |
88 | {3, 3}, /* cost of storing MMX registers | |
89 | in SImode and DImode */ | |
90 | 3, /* cost of moving SSE register */ | |
91 | {3, 3, 3}, /* cost of loading SSE registers | |
92 | in SImode, DImode and TImode */ | |
93 | {3, 3, 3}, /* cost of storing SSE registers | |
94 | in SImode, DImode and TImode */ | |
95 | 3, /* MMX or SSE register to integer */ | |
f4365627 JH |
96 | 0, /* size of prefetch block */ |
97 | 0, /* number of parallel prefetches */ | |
4977bab6 | 98 | 1, /* Branch cost */ |
229b303a RS |
99 | 2, /* cost of FADD and FSUB insns. */ |
100 | 2, /* cost of FMUL instruction. */ | |
101 | 2, /* cost of FDIV instruction. */ | |
102 | 2, /* cost of FABS instruction. */ | |
103 | 2, /* cost of FCHS instruction. */ | |
104 | 2, /* cost of FSQRT instruction. */ | |
2ab0437e | 105 | }; |
229b303a | 106 | |
32b5b1aa | 107 | /* Processor costs (relative to an add) */ |
fce5a9f2 | 108 | static const |
32b5b1aa | 109 | struct processor_costs i386_cost = { /* 386 specific costs */ |
e9a25f70 | 110 | 1, /* cost of an add instruction */ |
32b5b1aa SC |
111 | 1, /* cost of a lea instruction */ |
112 | 3, /* variable shift costs */ | |
113 | 2, /* constant shift costs */ | |
4977bab6 | 114 | {6, 6, 6, 6, 6}, /* cost of starting a multiply */ |
32b5b1aa | 115 | 1, /* cost of multiply per each bit set */ |
4977bab6 | 116 | {23, 23, 23, 23, 23}, /* cost of a divide/mod */ |
44cf5b6a JH |
117 | 3, /* cost of movsx */ |
118 | 2, /* cost of movzx */ | |
96e7ae40 | 119 | 15, /* "large" insn */ |
e2e52e1b | 120 | 3, /* MOVE_RATIO */ |
7c6b971d | 121 | 4, /* cost for loading QImode using movzbl */ |
96e7ae40 JH |
122 | {2, 4, 2}, /* cost of loading integer registers |
123 | in QImode, HImode and SImode. | |
0f290768 | 124 | Relative to reg-reg move (2). */ |
96e7ae40 JH |
125 | {2, 4, 2}, /* cost of storing integer registers */ |
126 | 2, /* cost of reg,reg fld/fst */ | |
127 | {8, 8, 8}, /* cost of loading fp registers | |
128 | in SFmode, DFmode and XFmode */ | |
fa79946e JH |
129 | {8, 8, 8}, /* cost of loading integer registers */ |
130 | 2, /* cost of moving MMX register */ | |
131 | {4, 8}, /* cost of loading MMX registers | |
132 | in SImode and DImode */ | |
133 | {4, 8}, /* cost of storing MMX registers | |
134 | in SImode and DImode */ | |
135 | 2, /* cost of moving SSE register */ | |
136 | {4, 8, 16}, /* cost of loading SSE registers | |
137 | in SImode, DImode and TImode */ | |
138 | {4, 8, 16}, /* cost of storing SSE registers | |
139 | in SImode, DImode and TImode */ | |
140 | 3, /* MMX or SSE register to integer */ | |
f4365627 JH |
141 | 0, /* size of prefetch block */ |
142 | 0, /* number of parallel prefetches */ | |
4977bab6 | 143 | 1, /* Branch cost */ |
229b303a RS |
144 | 23, /* cost of FADD and FSUB insns. */ |
145 | 27, /* cost of FMUL instruction. */ | |
146 | 88, /* cost of FDIV instruction. */ | |
147 | 22, /* cost of FABS instruction. */ | |
148 | 24, /* cost of FCHS instruction. */ | |
149 | 122, /* cost of FSQRT instruction. */ | |
32b5b1aa SC |
150 | }; |
151 | ||
fce5a9f2 | 152 | static const |
32b5b1aa SC |
153 | struct processor_costs i486_cost = { /* 486 specific costs */ |
154 | 1, /* cost of an add instruction */ | |
155 | 1, /* cost of a lea instruction */ | |
156 | 3, /* variable shift costs */ | |
157 | 2, /* constant shift costs */ | |
4977bab6 | 158 | {12, 12, 12, 12, 12}, /* cost of starting a multiply */ |
32b5b1aa | 159 | 1, /* cost of multiply per each bit set */ |
4977bab6 | 160 | {40, 40, 40, 40, 40}, /* cost of a divide/mod */ |
44cf5b6a JH |
161 | 3, /* cost of movsx */ |
162 | 2, /* cost of movzx */ | |
96e7ae40 | 163 | 15, /* "large" insn */ |
e2e52e1b | 164 | 3, /* MOVE_RATIO */ |
7c6b971d | 165 | 4, /* cost for loading QImode using movzbl */ |
96e7ae40 JH |
166 | {2, 4, 2}, /* cost of loading integer registers |
167 | in QImode, HImode and SImode. | |
0f290768 | 168 | Relative to reg-reg move (2). */ |
96e7ae40 JH |
169 | {2, 4, 2}, /* cost of storing integer registers */ |
170 | 2, /* cost of reg,reg fld/fst */ | |
171 | {8, 8, 8}, /* cost of loading fp registers | |
172 | in SFmode, DFmode and XFmode */ | |
fa79946e JH |
173 | {8, 8, 8}, /* cost of loading integer registers */ |
174 | 2, /* cost of moving MMX register */ | |
175 | {4, 8}, /* cost of loading MMX registers | |
176 | in SImode and DImode */ | |
177 | {4, 8}, /* cost of storing MMX registers | |
178 | in SImode and DImode */ | |
179 | 2, /* cost of moving SSE register */ | |
180 | {4, 8, 16}, /* cost of loading SSE registers | |
181 | in SImode, DImode and TImode */ | |
182 | {4, 8, 16}, /* cost of storing SSE registers | |
183 | in SImode, DImode and TImode */ | |
f4365627 JH |
184 | 3, /* MMX or SSE register to integer */ |
185 | 0, /* size of prefetch block */ | |
186 | 0, /* number of parallel prefetches */ | |
4977bab6 | 187 | 1, /* Branch cost */ |
229b303a RS |
188 | 8, /* cost of FADD and FSUB insns. */ |
189 | 16, /* cost of FMUL instruction. */ | |
190 | 73, /* cost of FDIV instruction. */ | |
191 | 3, /* cost of FABS instruction. */ | |
192 | 3, /* cost of FCHS instruction. */ | |
193 | 83, /* cost of FSQRT instruction. */ | |
32b5b1aa SC |
194 | }; |
195 | ||
fce5a9f2 | 196 | static const |
e5cb57e8 | 197 | struct processor_costs pentium_cost = { |
32b5b1aa SC |
198 | 1, /* cost of an add instruction */ |
199 | 1, /* cost of a lea instruction */ | |
856b07a1 | 200 | 4, /* variable shift costs */ |
e5cb57e8 | 201 | 1, /* constant shift costs */ |
4977bab6 | 202 | {11, 11, 11, 11, 11}, /* cost of starting a multiply */ |
856b07a1 | 203 | 0, /* cost of multiply per each bit set */ |
4977bab6 | 204 | {25, 25, 25, 25, 25}, /* cost of a divide/mod */ |
44cf5b6a JH |
205 | 3, /* cost of movsx */ |
206 | 2, /* cost of movzx */ | |
96e7ae40 | 207 | 8, /* "large" insn */ |
e2e52e1b | 208 | 6, /* MOVE_RATIO */ |
7c6b971d | 209 | 6, /* cost for loading QImode using movzbl */ |
96e7ae40 JH |
210 | {2, 4, 2}, /* cost of loading integer registers |
211 | in QImode, HImode and SImode. | |
0f290768 | 212 | Relative to reg-reg move (2). */ |
96e7ae40 JH |
213 | {2, 4, 2}, /* cost of storing integer registers */ |
214 | 2, /* cost of reg,reg fld/fst */ | |
215 | {2, 2, 6}, /* cost of loading fp registers | |
216 | in SFmode, DFmode and XFmode */ | |
fa79946e JH |
217 | {4, 4, 6}, /* cost of loading integer registers */ |
218 | 8, /* cost of moving MMX register */ | |
219 | {8, 8}, /* cost of loading MMX registers | |
220 | in SImode and DImode */ | |
221 | {8, 8}, /* cost of storing MMX registers | |
222 | in SImode and DImode */ | |
223 | 2, /* cost of moving SSE register */ | |
224 | {4, 8, 16}, /* cost of loading SSE registers | |
225 | in SImode, DImode and TImode */ | |
226 | {4, 8, 16}, /* cost of storing SSE registers | |
227 | in SImode, DImode and TImode */ | |
f4365627 JH |
228 | 3, /* MMX or SSE register to integer */ |
229 | 0, /* size of prefetch block */ | |
230 | 0, /* number of parallel prefetches */ | |
4977bab6 | 231 | 2, /* Branch cost */ |
229b303a RS |
232 | 3, /* cost of FADD and FSUB insns. */ |
233 | 3, /* cost of FMUL instruction. */ | |
234 | 39, /* cost of FDIV instruction. */ | |
235 | 1, /* cost of FABS instruction. */ | |
236 | 1, /* cost of FCHS instruction. */ | |
237 | 70, /* cost of FSQRT instruction. */ | |
32b5b1aa SC |
238 | }; |
239 | ||
fce5a9f2 | 240 | static const |
856b07a1 SC |
241 | struct processor_costs pentiumpro_cost = { |
242 | 1, /* cost of an add instruction */ | |
243 | 1, /* cost of a lea instruction */ | |
e075ae69 | 244 | 1, /* variable shift costs */ |
856b07a1 | 245 | 1, /* constant shift costs */ |
4977bab6 | 246 | {4, 4, 4, 4, 4}, /* cost of starting a multiply */ |
856b07a1 | 247 | 0, /* cost of multiply per each bit set */ |
4977bab6 | 248 | {17, 17, 17, 17, 17}, /* cost of a divide/mod */ |
44cf5b6a JH |
249 | 1, /* cost of movsx */ |
250 | 1, /* cost of movzx */ | |
96e7ae40 | 251 | 8, /* "large" insn */ |
e2e52e1b | 252 | 6, /* MOVE_RATIO */ |
7c6b971d | 253 | 2, /* cost for loading QImode using movzbl */ |
96e7ae40 JH |
254 | {4, 4, 4}, /* cost of loading integer registers |
255 | in QImode, HImode and SImode. | |
0f290768 | 256 | Relative to reg-reg move (2). */ |
96e7ae40 JH |
257 | {2, 2, 2}, /* cost of storing integer registers */ |
258 | 2, /* cost of reg,reg fld/fst */ | |
259 | {2, 2, 6}, /* cost of loading fp registers | |
260 | in SFmode, DFmode and XFmode */ | |
fa79946e JH |
261 | {4, 4, 6}, /* cost of loading integer registers */ |
262 | 2, /* cost of moving MMX register */ | |
263 | {2, 2}, /* cost of loading MMX registers | |
264 | in SImode and DImode */ | |
265 | {2, 2}, /* cost of storing MMX registers | |
266 | in SImode and DImode */ | |
267 | 2, /* cost of moving SSE register */ | |
268 | {2, 2, 8}, /* cost of loading SSE registers | |
269 | in SImode, DImode and TImode */ | |
270 | {2, 2, 8}, /* cost of storing SSE registers | |
271 | in SImode, DImode and TImode */ | |
f4365627 JH |
272 | 3, /* MMX or SSE register to integer */ |
273 | 32, /* size of prefetch block */ | |
274 | 6, /* number of parallel prefetches */ | |
4977bab6 | 275 | 2, /* Branch cost */ |
229b303a RS |
276 | 3, /* cost of FADD and FSUB insns. */ |
277 | 5, /* cost of FMUL instruction. */ | |
278 | 56, /* cost of FDIV instruction. */ | |
279 | 2, /* cost of FABS instruction. */ | |
280 | 2, /* cost of FCHS instruction. */ | |
281 | 56, /* cost of FSQRT instruction. */ | |
856b07a1 SC |
282 | }; |
283 | ||
fce5a9f2 | 284 | static const |
a269a03c JC |
285 | struct processor_costs k6_cost = { |
286 | 1, /* cost of an add instruction */ | |
e075ae69 | 287 | 2, /* cost of a lea instruction */ |
a269a03c JC |
288 | 1, /* variable shift costs */ |
289 | 1, /* constant shift costs */ | |
4977bab6 | 290 | {3, 3, 3, 3, 3}, /* cost of starting a multiply */ |
a269a03c | 291 | 0, /* cost of multiply per each bit set */ |
4977bab6 | 292 | {18, 18, 18, 18, 18}, /* cost of a divide/mod */ |
44cf5b6a JH |
293 | 2, /* cost of movsx */ |
294 | 2, /* cost of movzx */ | |
96e7ae40 | 295 | 8, /* "large" insn */ |
e2e52e1b | 296 | 4, /* MOVE_RATIO */ |
7c6b971d | 297 | 3, /* cost for loading QImode using movzbl */ |
96e7ae40 JH |
298 | {4, 5, 4}, /* cost of loading integer registers |
299 | in QImode, HImode and SImode. | |
0f290768 | 300 | Relative to reg-reg move (2). */ |
96e7ae40 JH |
301 | {2, 3, 2}, /* cost of storing integer registers */ |
302 | 4, /* cost of reg,reg fld/fst */ | |
303 | {6, 6, 6}, /* cost of loading fp registers | |
304 | in SFmode, DFmode and XFmode */ | |
fa79946e JH |
305 | {4, 4, 4}, /* cost of loading integer registers */ |
306 | 2, /* cost of moving MMX register */ | |
307 | {2, 2}, /* cost of loading MMX registers | |
308 | in SImode and DImode */ | |
309 | {2, 2}, /* cost of storing MMX registers | |
310 | in SImode and DImode */ | |
311 | 2, /* cost of moving SSE register */ | |
312 | {2, 2, 8}, /* cost of loading SSE registers | |
313 | in SImode, DImode and TImode */ | |
314 | {2, 2, 8}, /* cost of storing SSE registers | |
315 | in SImode, DImode and TImode */ | |
f4365627 JH |
316 | 6, /* MMX or SSE register to integer */ |
317 | 32, /* size of prefetch block */ | |
318 | 1, /* number of parallel prefetches */ | |
4977bab6 | 319 | 1, /* Branch cost */ |
229b303a RS |
320 | 2, /* cost of FADD and FSUB insns. */ |
321 | 2, /* cost of FMUL instruction. */ | |
4f770e7b RS |
322 | 56, /* cost of FDIV instruction. */ |
323 | 2, /* cost of FABS instruction. */ | |
229b303a RS |
324 | 2, /* cost of FCHS instruction. */ |
325 | 56, /* cost of FSQRT instruction. */ | |
a269a03c JC |
326 | }; |
327 | ||
fce5a9f2 | 328 | static const |
309ada50 JH |
329 | struct processor_costs athlon_cost = { |
330 | 1, /* cost of an add instruction */ | |
0b5107cf | 331 | 2, /* cost of a lea instruction */ |
309ada50 JH |
332 | 1, /* variable shift costs */ |
333 | 1, /* constant shift costs */ | |
4977bab6 | 334 | {5, 5, 5, 5, 5}, /* cost of starting a multiply */ |
309ada50 | 335 | 0, /* cost of multiply per each bit set */ |
4977bab6 | 336 | {18, 26, 42, 74, 74}, /* cost of a divide/mod */ |
44cf5b6a JH |
337 | 1, /* cost of movsx */ |
338 | 1, /* cost of movzx */ | |
309ada50 | 339 | 8, /* "large" insn */ |
e2e52e1b | 340 | 9, /* MOVE_RATIO */ |
309ada50 | 341 | 4, /* cost for loading QImode using movzbl */ |
b72b1c29 | 342 | {3, 4, 3}, /* cost of loading integer registers |
309ada50 | 343 | in QImode, HImode and SImode. |
0f290768 | 344 | Relative to reg-reg move (2). */ |
b72b1c29 | 345 | {3, 4, 3}, /* cost of storing integer registers */ |
309ada50 | 346 | 4, /* cost of reg,reg fld/fst */ |
b72b1c29 | 347 | {4, 4, 12}, /* cost of loading fp registers |
309ada50 | 348 | in SFmode, DFmode and XFmode */ |
b72b1c29 | 349 | {6, 6, 8}, /* cost of loading integer registers */ |
fa79946e | 350 | 2, /* cost of moving MMX register */ |
b72b1c29 | 351 | {4, 4}, /* cost of loading MMX registers |
fa79946e | 352 | in SImode and DImode */ |
b72b1c29 | 353 | {4, 4}, /* cost of storing MMX registers |
fa79946e JH |
354 | in SImode and DImode */ |
355 | 2, /* cost of moving SSE register */ | |
b72b1c29 | 356 | {4, 4, 6}, /* cost of loading SSE registers |
fa79946e | 357 | in SImode, DImode and TImode */ |
b72b1c29 | 358 | {4, 4, 5}, /* cost of storing SSE registers |
fa79946e | 359 | in SImode, DImode and TImode */ |
b72b1c29 | 360 | 5, /* MMX or SSE register to integer */ |
f4365627 JH |
361 | 64, /* size of prefetch block */ |
362 | 6, /* number of parallel prefetches */ | |
4977bab6 | 363 | 2, /* Branch cost */ |
229b303a RS |
364 | 4, /* cost of FADD and FSUB insns. */ |
365 | 4, /* cost of FMUL instruction. */ | |
366 | 24, /* cost of FDIV instruction. */ | |
367 | 2, /* cost of FABS instruction. */ | |
368 | 2, /* cost of FCHS instruction. */ | |
369 | 35, /* cost of FSQRT instruction. */ | |
309ada50 JH |
370 | }; |
371 | ||
4977bab6 ZW |
372 | static const |
373 | struct processor_costs k8_cost = { | |
374 | 1, /* cost of an add instruction */ | |
375 | 2, /* cost of a lea instruction */ | |
376 | 1, /* variable shift costs */ | |
377 | 1, /* constant shift costs */ | |
378 | {3, 4, 3, 4, 5}, /* cost of starting a multiply */ | |
379 | 0, /* cost of multiply per each bit set */ | |
380 | {18, 26, 42, 74, 74}, /* cost of a divide/mod */ | |
381 | 1, /* cost of movsx */ | |
382 | 1, /* cost of movzx */ | |
383 | 8, /* "large" insn */ | |
384 | 9, /* MOVE_RATIO */ | |
385 | 4, /* cost for loading QImode using movzbl */ | |
386 | {3, 4, 3}, /* cost of loading integer registers | |
387 | in QImode, HImode and SImode. | |
388 | Relative to reg-reg move (2). */ | |
389 | {3, 4, 3}, /* cost of storing integer registers */ | |
390 | 4, /* cost of reg,reg fld/fst */ | |
391 | {4, 4, 12}, /* cost of loading fp registers | |
392 | in SFmode, DFmode and XFmode */ | |
393 | {6, 6, 8}, /* cost of loading integer registers */ | |
394 | 2, /* cost of moving MMX register */ | |
395 | {3, 3}, /* cost of loading MMX registers | |
396 | in SImode and DImode */ | |
397 | {4, 4}, /* cost of storing MMX registers | |
398 | in SImode and DImode */ | |
399 | 2, /* cost of moving SSE register */ | |
400 | {4, 3, 6}, /* cost of loading SSE registers | |
401 | in SImode, DImode and TImode */ | |
402 | {4, 4, 5}, /* cost of storing SSE registers | |
403 | in SImode, DImode and TImode */ | |
404 | 5, /* MMX or SSE register to integer */ | |
405 | 64, /* size of prefetch block */ | |
406 | 6, /* number of parallel prefetches */ | |
407 | 2, /* Branch cost */ | |
408 | 4, /* cost of FADD and FSUB insns. */ | |
409 | 4, /* cost of FMUL instruction. */ | |
410 | 19, /* cost of FDIV instruction. */ | |
411 | 2, /* cost of FABS instruction. */ | |
412 | 2, /* cost of FCHS instruction. */ | |
413 | 35, /* cost of FSQRT instruction. */ | |
414 | }; | |
415 | ||
fce5a9f2 | 416 | static const |
b4e89e2d JH |
417 | struct processor_costs pentium4_cost = { |
418 | 1, /* cost of an add instruction */ | |
419 | 1, /* cost of a lea instruction */ | |
4977bab6 ZW |
420 | 4, /* variable shift costs */ |
421 | 4, /* constant shift costs */ | |
422 | {15, 15, 15, 15, 15}, /* cost of starting a multiply */ | |
b4e89e2d | 423 | 0, /* cost of multiply per each bit set */ |
4977bab6 | 424 | {56, 56, 56, 56, 56}, /* cost of a divide/mod */ |
44cf5b6a JH |
425 | 1, /* cost of movsx */ |
426 | 1, /* cost of movzx */ | |
b4e89e2d JH |
427 | 16, /* "large" insn */ |
428 | 6, /* MOVE_RATIO */ | |
429 | 2, /* cost for loading QImode using movzbl */ | |
430 | {4, 5, 4}, /* cost of loading integer registers | |
431 | in QImode, HImode and SImode. | |
432 | Relative to reg-reg move (2). */ | |
433 | {2, 3, 2}, /* cost of storing integer registers */ | |
434 | 2, /* cost of reg,reg fld/fst */ | |
435 | {2, 2, 6}, /* cost of loading fp registers | |
436 | in SFmode, DFmode and XFmode */ | |
437 | {4, 4, 6}, /* cost of loading integer registers */ | |
438 | 2, /* cost of moving MMX register */ | |
439 | {2, 2}, /* cost of loading MMX registers | |
440 | in SImode and DImode */ | |
441 | {2, 2}, /* cost of storing MMX registers | |
442 | in SImode and DImode */ | |
443 | 12, /* cost of moving SSE register */ | |
444 | {12, 12, 12}, /* cost of loading SSE registers | |
445 | in SImode, DImode and TImode */ | |
446 | {2, 2, 8}, /* cost of storing SSE registers | |
447 | in SImode, DImode and TImode */ | |
448 | 10, /* MMX or SSE register to integer */ | |
f4365627 JH |
449 | 64, /* size of prefetch block */ |
450 | 6, /* number of parallel prefetches */ | |
4977bab6 | 451 | 2, /* Branch cost */ |
229b303a RS |
452 | 5, /* cost of FADD and FSUB insns. */ |
453 | 7, /* cost of FMUL instruction. */ | |
454 | 43, /* cost of FDIV instruction. */ | |
455 | 2, /* cost of FABS instruction. */ | |
456 | 2, /* cost of FCHS instruction. */ | |
457 | 43, /* cost of FSQRT instruction. */ | |
b4e89e2d JH |
458 | }; |
459 | ||
8b60264b | 460 | const struct processor_costs *ix86_cost = &pentium_cost; |
32b5b1aa | 461 | |
a269a03c JC |
462 | /* Processor feature/optimization bitmasks. */ |
463 | #define m_386 (1<<PROCESSOR_I386) | |
464 | #define m_486 (1<<PROCESSOR_I486) | |
465 | #define m_PENT (1<<PROCESSOR_PENTIUM) | |
466 | #define m_PPRO (1<<PROCESSOR_PENTIUMPRO) | |
467 | #define m_K6 (1<<PROCESSOR_K6) | |
309ada50 | 468 | #define m_ATHLON (1<<PROCESSOR_ATHLON) |
b4e89e2d | 469 | #define m_PENT4 (1<<PROCESSOR_PENTIUM4) |
4977bab6 ZW |
470 | #define m_K8 (1<<PROCESSOR_K8) |
471 | #define m_ATHLON_K8 (m_K8 | m_ATHLON) | |
a269a03c | 472 | |
4977bab6 ZW |
473 | const int x86_use_leave = m_386 | m_K6 | m_ATHLON_K8; |
474 | const int x86_push_memory = m_386 | m_K6 | m_ATHLON_K8 | m_PENT4; | |
a269a03c | 475 | const int x86_zero_extend_with_and = m_486 | m_PENT; |
4977bab6 | 476 | const int x86_movx = m_ATHLON_K8 | m_PPRO | m_PENT4 /* m_386 | m_K6 */; |
e075ae69 | 477 | const int x86_double_with_add = ~m_386; |
a269a03c | 478 | const int x86_use_bit_test = m_386; |
4977bab6 ZW |
479 | const int x86_unroll_strlen = m_486 | m_PENT | m_PPRO | m_ATHLON_K8 | m_K6; |
480 | const int x86_cmove = m_PPRO | m_ATHLON_K8 | m_PENT4; | |
481 | const int x86_3dnow_a = m_ATHLON_K8; | |
482 | const int x86_deep_branch = m_PPRO | m_K6 | m_ATHLON_K8 | m_PENT4; | |
ef6257cd | 483 | const int x86_branch_hints = m_PENT4; |
b4e89e2d | 484 | const int x86_use_sahf = m_PPRO | m_K6 | m_PENT4; |
e075ae69 RH |
485 | const int x86_partial_reg_stall = m_PPRO; |
486 | const int x86_use_loop = m_K6; | |
4977bab6 | 487 | const int x86_use_fiop = ~(m_PPRO | m_ATHLON_K8 | m_PENT); |
e075ae69 RH |
488 | const int x86_use_mov0 = m_K6; |
489 | const int x86_use_cltd = ~(m_PENT | m_K6); | |
490 | const int x86_read_modify_write = ~m_PENT; | |
491 | const int x86_read_modify = ~(m_PENT | m_PPRO); | |
492 | const int x86_split_long_moves = m_PPRO; | |
4977bab6 | 493 | const int x86_promote_QImode = m_K6 | m_PENT | m_386 | m_486 | m_ATHLON_K8; |
285464d0 | 494 | const int x86_fast_prefix = ~(m_PENT | m_486 | m_386); |
b4e89e2d | 495 | const int x86_single_stringop = m_386 | m_PENT4; |
d9f32422 JH |
496 | const int x86_qimode_math = ~(0); |
497 | const int x86_promote_qi_regs = 0; | |
498 | const int x86_himode_math = ~(m_PPRO); | |
499 | const int x86_promote_hi_regs = m_PPRO; | |
4977bab6 ZW |
500 | const int x86_sub_esp_4 = m_ATHLON_K8 | m_PPRO | m_PENT4; |
501 | const int x86_sub_esp_8 = m_ATHLON_K8 | m_PPRO | m_386 | m_486 | m_PENT4; | |
502 | const int x86_add_esp_4 = m_ATHLON_K8 | m_K6 | m_PENT4; | |
503 | const int x86_add_esp_8 = m_ATHLON_K8 | m_PPRO | m_K6 | m_386 | m_486 | m_PENT4; | |
504 | const int x86_integer_DFmode_moves = ~(m_ATHLON_K8 | m_PENT4 | m_PPRO); | |
505 | const int x86_partial_reg_dependency = m_ATHLON_K8 | m_PENT4; | |
506 | const int x86_memory_mismatch_stall = m_ATHLON_K8 | m_PENT4; | |
507 | const int x86_accumulate_outgoing_args = m_ATHLON_K8 | m_PENT4 | m_PPRO; | |
7b50a809 JH |
508 | const int x86_prologue_using_move = m_ATHLON_K8 | m_PPRO; |
509 | const int x86_epilogue_using_move = m_ATHLON_K8 | m_PPRO; | |
b972dd02 | 510 | const int x86_decompose_lea = m_PENT4; |
495333a6 | 511 | const int x86_shift1 = ~m_486; |
4977bab6 ZW |
512 | const int x86_arch_always_fancy_math_387 = m_PENT | m_PPRO | m_ATHLON_K8 | m_PENT4; |
513 | const int x86_sse_partial_reg_dependency = m_PENT4 | m_PPRO; | |
514 | /* Set for machines where the type and dependencies are resolved on SSE register | |
d1f87653 | 515 | parts instead of whole registers, so we may maintain just lower part of |
4977bab6 ZW |
516 | scalar values in proper format leaving the upper part undefined. */ |
517 | const int x86_sse_partial_regs = m_ATHLON_K8; | |
518 | /* Athlon optimizes partial-register FPS special case, thus avoiding the | |
519 | need for extra instructions beforehand */ | |
520 | const int x86_sse_partial_regs_for_cvtsd2ss = 0; | |
521 | const int x86_sse_typeless_stores = m_ATHLON_K8; | |
522 | const int x86_sse_load0_by_pxor = m_PPRO | m_PENT4; | |
523 | const int x86_use_ffreep = m_ATHLON_K8; | |
524 | const int x86_rep_movl_optimal = m_386 | m_PENT | m_PPRO | m_K6; | |
8f62128d | 525 | const int x86_inter_unit_moves = ~(m_ATHLON_K8); |
881b2a96 | 526 | const int x86_ext_80387_constants = m_K6 | m_ATHLON | m_PENT4 | m_PPRO; |
be04394b JH |
527 | /* Some CPU cores are not able to predict more than 4 branch instructions in |
528 | the 16 byte window. */ | |
529 | const int x86_four_jump_limit = m_PPRO | m_ATHLON_K8 | m_PENT4; | |
a269a03c | 530 | |
d1f87653 | 531 | /* In case the average insn count for single function invocation is |
6ab16dd9 JH |
532 | lower than this constant, emit fast (but longer) prologue and |
533 | epilogue code. */ | |
4977bab6 | 534 | #define FAST_PROLOGUE_INSN_COUNT 20 |
5bf0ebab | 535 | |
5bf0ebab RH |
536 | /* Names for 8 (low), 8 (high), and 16-bit registers, respectively. */ |
537 | static const char *const qi_reg_name[] = QI_REGISTER_NAMES; | |
538 | static const char *const qi_high_reg_name[] = QI_HIGH_REGISTER_NAMES; | |
539 | static const char *const hi_reg_name[] = HI_REGISTER_NAMES; | |
4c0d89b5 RS |
540 | |
541 | /* Array of the smallest class containing reg number REGNO, indexed by | |
0f290768 | 542 | REGNO. Used by REGNO_REG_CLASS in i386.h. */ |
4c0d89b5 | 543 | |
e075ae69 | 544 | enum reg_class const regclass_map[FIRST_PSEUDO_REGISTER] = |
4c0d89b5 RS |
545 | { |
546 | /* ax, dx, cx, bx */ | |
ab408a86 | 547 | AREG, DREG, CREG, BREG, |
4c0d89b5 | 548 | /* si, di, bp, sp */ |
e075ae69 | 549 | SIREG, DIREG, NON_Q_REGS, NON_Q_REGS, |
4c0d89b5 RS |
550 | /* FP registers */ |
551 | FP_TOP_REG, FP_SECOND_REG, FLOAT_REGS, FLOAT_REGS, | |
79325812 | 552 | FLOAT_REGS, FLOAT_REGS, FLOAT_REGS, FLOAT_REGS, |
4c0d89b5 | 553 | /* arg pointer */ |
83774849 | 554 | NON_Q_REGS, |
564d80f4 | 555 | /* flags, fpsr, dirflag, frame */ |
a7180f70 BS |
556 | NO_REGS, NO_REGS, NO_REGS, NON_Q_REGS, |
557 | SSE_REGS, SSE_REGS, SSE_REGS, SSE_REGS, SSE_REGS, SSE_REGS, | |
558 | SSE_REGS, SSE_REGS, | |
559 | MMX_REGS, MMX_REGS, MMX_REGS, MMX_REGS, MMX_REGS, MMX_REGS, | |
3d117b30 JH |
560 | MMX_REGS, MMX_REGS, |
561 | NON_Q_REGS, NON_Q_REGS, NON_Q_REGS, NON_Q_REGS, | |
562 | NON_Q_REGS, NON_Q_REGS, NON_Q_REGS, NON_Q_REGS, | |
563 | SSE_REGS, SSE_REGS, SSE_REGS, SSE_REGS, SSE_REGS, SSE_REGS, | |
564 | SSE_REGS, SSE_REGS, | |
4c0d89b5 | 565 | }; |
c572e5ba | 566 | |
3d117b30 | 567 | /* The "default" register map used in 32bit mode. */ |
83774849 | 568 | |
0f290768 | 569 | int const dbx_register_map[FIRST_PSEUDO_REGISTER] = |
83774849 RH |
570 | { |
571 | 0, 2, 1, 3, 6, 7, 4, 5, /* general regs */ | |
572 | 12, 13, 14, 15, 16, 17, 18, 19, /* fp regs */ | |
3d117b30 | 573 | -1, -1, -1, -1, -1, /* arg, flags, fpsr, dir, frame */ |
a7180f70 BS |
574 | 21, 22, 23, 24, 25, 26, 27, 28, /* SSE */ |
575 | 29, 30, 31, 32, 33, 34, 35, 36, /* MMX */ | |
3d117b30 JH |
576 | -1, -1, -1, -1, -1, -1, -1, -1, /* extended integer registers */ |
577 | -1, -1, -1, -1, -1, -1, -1, -1, /* extended SSE registers */ | |
83774849 RH |
578 | }; |
579 | ||
5bf0ebab RH |
580 | static int const x86_64_int_parameter_registers[6] = |
581 | { | |
582 | 5 /*RDI*/, 4 /*RSI*/, 1 /*RDX*/, 2 /*RCX*/, | |
583 | FIRST_REX_INT_REG /*R8 */, FIRST_REX_INT_REG + 1 /*R9 */ | |
584 | }; | |
585 | ||
586 | static int const x86_64_int_return_registers[4] = | |
587 | { | |
588 | 0 /*RAX*/, 1 /*RDI*/, 5 /*RDI*/, 4 /*RSI*/ | |
589 | }; | |
53c17031 | 590 | |
0f7fa3d0 JH |
591 | /* The "default" register map used in 64bit mode. */ |
592 | int const dbx64_register_map[FIRST_PSEUDO_REGISTER] = | |
593 | { | |
594 | 0, 1, 2, 3, 4, 5, 6, 7, /* general regs */ | |
3de72741 | 595 | 33, 34, 35, 36, 37, 38, 39, 40, /* fp regs */ |
0f7fa3d0 JH |
596 | -1, -1, -1, -1, -1, /* arg, flags, fpsr, dir, frame */ |
597 | 17, 18, 19, 20, 21, 22, 23, 24, /* SSE */ | |
598 | 41, 42, 43, 44, 45, 46, 47, 48, /* MMX */ | |
599 | 8,9,10,11,12,13,14,15, /* extended integer registers */ | |
600 | 25, 26, 27, 28, 29, 30, 31, 32, /* extended SSE registers */ | |
601 | }; | |
602 | ||
83774849 RH |
603 | /* Define the register numbers to be used in Dwarf debugging information. |
604 | The SVR4 reference port C compiler uses the following register numbers | |
605 | in its Dwarf output code: | |
606 | 0 for %eax (gcc regno = 0) | |
607 | 1 for %ecx (gcc regno = 2) | |
608 | 2 for %edx (gcc regno = 1) | |
609 | 3 for %ebx (gcc regno = 3) | |
610 | 4 for %esp (gcc regno = 7) | |
611 | 5 for %ebp (gcc regno = 6) | |
612 | 6 for %esi (gcc regno = 4) | |
613 | 7 for %edi (gcc regno = 5) | |
614 | The following three DWARF register numbers are never generated by | |
615 | the SVR4 C compiler or by the GNU compilers, but SDB on x86/svr4 | |
616 | believes these numbers have these meanings. | |
617 | 8 for %eip (no gcc equivalent) | |
618 | 9 for %eflags (gcc regno = 17) | |
619 | 10 for %trapno (no gcc equivalent) | |
620 | It is not at all clear how we should number the FP stack registers | |
621 | for the x86 architecture. If the version of SDB on x86/svr4 were | |
622 | a bit less brain dead with respect to floating-point then we would | |
623 | have a precedent to follow with respect to DWARF register numbers | |
624 | for x86 FP registers, but the SDB on x86/svr4 is so completely | |
625 | broken with respect to FP registers that it is hardly worth thinking | |
626 | of it as something to strive for compatibility with. | |
627 | The version of x86/svr4 SDB I have at the moment does (partially) | |
628 | seem to believe that DWARF register number 11 is associated with | |
629 | the x86 register %st(0), but that's about all. Higher DWARF | |
630 | register numbers don't seem to be associated with anything in | |
631 | particular, and even for DWARF regno 11, SDB only seems to under- | |
632 | stand that it should say that a variable lives in %st(0) (when | |
633 | asked via an `=' command) if we said it was in DWARF regno 11, | |
634 | but SDB still prints garbage when asked for the value of the | |
635 | variable in question (via a `/' command). | |
636 | (Also note that the labels SDB prints for various FP stack regs | |
637 | when doing an `x' command are all wrong.) | |
638 | Note that these problems generally don't affect the native SVR4 | |
639 | C compiler because it doesn't allow the use of -O with -g and | |
640 | because when it is *not* optimizing, it allocates a memory | |
641 | location for each floating-point variable, and the memory | |
642 | location is what gets described in the DWARF AT_location | |
643 | attribute for the variable in question. | |
644 | Regardless of the severe mental illness of the x86/svr4 SDB, we | |
645 | do something sensible here and we use the following DWARF | |
646 | register numbers. Note that these are all stack-top-relative | |
647 | numbers. | |
648 | 11 for %st(0) (gcc regno = 8) | |
649 | 12 for %st(1) (gcc regno = 9) | |
650 | 13 for %st(2) (gcc regno = 10) | |
651 | 14 for %st(3) (gcc regno = 11) | |
652 | 15 for %st(4) (gcc regno = 12) | |
653 | 16 for %st(5) (gcc regno = 13) | |
654 | 17 for %st(6) (gcc regno = 14) | |
655 | 18 for %st(7) (gcc regno = 15) | |
656 | */ | |
0f290768 | 657 | int const svr4_dbx_register_map[FIRST_PSEUDO_REGISTER] = |
83774849 RH |
658 | { |
659 | 0, 2, 1, 3, 6, 7, 5, 4, /* general regs */ | |
660 | 11, 12, 13, 14, 15, 16, 17, 18, /* fp regs */ | |
3f3f2124 | 661 | -1, 9, -1, -1, -1, /* arg, flags, fpsr, dir, frame */ |
a7180f70 BS |
662 | 21, 22, 23, 24, 25, 26, 27, 28, /* SSE registers */ |
663 | 29, 30, 31, 32, 33, 34, 35, 36, /* MMX registers */ | |
d1f87653 KH |
664 | -1, -1, -1, -1, -1, -1, -1, -1, /* extended integer registers */ |
665 | -1, -1, -1, -1, -1, -1, -1, -1, /* extended SSE registers */ | |
83774849 RH |
666 | }; |
667 | ||
c572e5ba JVA |
668 | /* Test and compare insns in i386.md store the information needed to |
669 | generate branch and scc insns here. */ | |
670 | ||
07933f72 GS |
671 | rtx ix86_compare_op0 = NULL_RTX; |
672 | rtx ix86_compare_op1 = NULL_RTX; | |
f5316dfe | 673 | |
7a2e09f4 | 674 | #define MAX_386_STACK_LOCALS 3 |
8362f420 JH |
675 | /* Size of the register save area. */ |
676 | #define X86_64_VARARGS_SIZE (REGPARM_MAX * UNITS_PER_WORD + SSE_REGPARM_MAX * 16) | |
36edd3cc BS |
677 | |
678 | /* Define the structure for the machine field in struct function. */ | |
ddb0ae00 ZW |
679 | |
680 | struct stack_local_entry GTY(()) | |
681 | { | |
682 | unsigned short mode; | |
683 | unsigned short n; | |
684 | rtx rtl; | |
685 | struct stack_local_entry *next; | |
686 | }; | |
687 | ||
4dd2ac2c JH |
688 | /* Structure describing stack frame layout. |
689 | Stack grows downward: | |
690 | ||
691 | [arguments] | |
692 | <- ARG_POINTER | |
693 | saved pc | |
694 | ||
695 | saved frame pointer if frame_pointer_needed | |
696 | <- HARD_FRAME_POINTER | |
697 | [saved regs] | |
698 | ||
699 | [padding1] \ | |
700 | ) | |
701 | [va_arg registers] ( | |
702 | > to_allocate <- FRAME_POINTER | |
703 | [frame] ( | |
704 | ) | |
705 | [padding2] / | |
706 | */ | |
707 | struct ix86_frame | |
708 | { | |
709 | int nregs; | |
710 | int padding1; | |
8362f420 | 711 | int va_arg_size; |
4dd2ac2c JH |
712 | HOST_WIDE_INT frame; |
713 | int padding2; | |
714 | int outgoing_arguments_size; | |
8362f420 | 715 | int red_zone_size; |
4dd2ac2c JH |
716 | |
717 | HOST_WIDE_INT to_allocate; | |
718 | /* The offsets relative to ARG_POINTER. */ | |
719 | HOST_WIDE_INT frame_pointer_offset; | |
720 | HOST_WIDE_INT hard_frame_pointer_offset; | |
721 | HOST_WIDE_INT stack_pointer_offset; | |
d9b40e8d JH |
722 | |
723 | /* When save_regs_using_mov is set, emit prologue using | |
724 | move instead of push instructions. */ | |
725 | bool save_regs_using_mov; | |
4dd2ac2c JH |
726 | }; |
727 | ||
c93e80a5 JH |
728 | /* Used to enable/disable debugging features. */ |
729 | const char *ix86_debug_arg_string, *ix86_debug_addr_string; | |
6189a572 JH |
730 | /* Code model option as passed by user. */ |
731 | const char *ix86_cmodel_string; | |
732 | /* Parsed value. */ | |
733 | enum cmodel ix86_cmodel; | |
80f33d06 GS |
734 | /* Asm dialect. */ |
735 | const char *ix86_asm_string; | |
736 | enum asm_dialect ix86_asm_dialect = ASM_ATT; | |
f996902d RH |
737 | /* TLS dialext. */ |
738 | const char *ix86_tls_dialect_string; | |
739 | enum tls_dialect ix86_tls_dialect = TLS_DIALECT_GNU; | |
6189a572 | 740 | |
5bf0ebab | 741 | /* Which unit we are generating floating point math for. */ |
965f5423 JH |
742 | enum fpmath_unit ix86_fpmath; |
743 | ||
5bf0ebab | 744 | /* Which cpu are we scheduling for. */ |
9e555526 | 745 | enum processor_type ix86_tune; |
5bf0ebab RH |
746 | /* Which instruction set architecture to use. */ |
747 | enum processor_type ix86_arch; | |
c8c5cb99 SC |
748 | |
749 | /* Strings to hold which cpu and instruction set architecture to use. */ | |
9e555526 | 750 | const char *ix86_tune_string; /* for -mtune=<xxx> */ |
9c23aa47 | 751 | const char *ix86_arch_string; /* for -march=<xxx> */ |
965f5423 | 752 | const char *ix86_fpmath_string; /* for -mfpmath=<xxx> */ |
c8c5cb99 | 753 | |
0f290768 | 754 | /* # of registers to use to pass arguments. */ |
e075ae69 | 755 | const char *ix86_regparm_string; |
e9a25f70 | 756 | |
f4365627 JH |
757 | /* true if sse prefetch instruction is not NOOP. */ |
758 | int x86_prefetch_sse; | |
759 | ||
e075ae69 RH |
760 | /* ix86_regparm_string as a number */ |
761 | int ix86_regparm; | |
e9a25f70 JL |
762 | |
763 | /* Alignment to use for loops and jumps: */ | |
764 | ||
0f290768 | 765 | /* Power of two alignment for loops. */ |
e075ae69 | 766 | const char *ix86_align_loops_string; |
e9a25f70 | 767 | |
0f290768 | 768 | /* Power of two alignment for non-loop jumps. */ |
e075ae69 | 769 | const char *ix86_align_jumps_string; |
e9a25f70 | 770 | |
3af4bd89 | 771 | /* Power of two alignment for stack boundary in bytes. */ |
e075ae69 | 772 | const char *ix86_preferred_stack_boundary_string; |
3af4bd89 JH |
773 | |
774 | /* Preferred alignment for stack boundary in bits. */ | |
e075ae69 | 775 | int ix86_preferred_stack_boundary; |
3af4bd89 | 776 | |
e9a25f70 | 777 | /* Values 1-5: see jump.c */ |
e075ae69 RH |
778 | int ix86_branch_cost; |
779 | const char *ix86_branch_cost_string; | |
e9a25f70 | 780 | |
0f290768 | 781 | /* Power of two alignment for functions. */ |
e075ae69 | 782 | const char *ix86_align_funcs_string; |
623fe810 RH |
783 | |
784 | /* Prefix built by ASM_GENERATE_INTERNAL_LABEL. */ | |
785 | static char internal_label_prefix[16]; | |
786 | static int internal_label_prefix_len; | |
e075ae69 | 787 | \f |
b96a374d AJ |
788 | static int local_symbolic_operand (rtx, enum machine_mode); |
789 | static int tls_symbolic_operand_1 (rtx, enum tls_model); | |
790 | static void output_pic_addr_const (FILE *, rtx, int); | |
791 | static void put_condition_code (enum rtx_code, enum machine_mode, | |
792 | int, int, FILE *); | |
793 | static const char *get_some_local_dynamic_name (void); | |
794 | static int get_some_local_dynamic_name_1 (rtx *, void *); | |
795 | static rtx maybe_get_pool_constant (rtx); | |
796 | static rtx ix86_expand_int_compare (enum rtx_code, rtx, rtx); | |
797 | static enum rtx_code ix86_prepare_fp_compare_args (enum rtx_code, rtx *, | |
798 | rtx *); | |
e129d93a ILT |
799 | static bool ix86_fixed_condition_code_regs (unsigned int *, unsigned int *); |
800 | static enum machine_mode ix86_cc_modes_compatible (enum machine_mode, | |
801 | enum machine_mode); | |
b96a374d AJ |
802 | static rtx get_thread_pointer (int); |
803 | static rtx legitimize_tls_address (rtx, enum tls_model, int); | |
804 | static void get_pc_thunk_name (char [32], unsigned int); | |
805 | static rtx gen_push (rtx); | |
806 | static int memory_address_length (rtx addr); | |
807 | static int ix86_flags_dependant (rtx, rtx, enum attr_type); | |
808 | static int ix86_agi_dependant (rtx, rtx, enum attr_type); | |
809 | static enum attr_ppro_uops ix86_safe_ppro_uops (rtx); | |
810 | static void ix86_dump_ppro_packet (FILE *); | |
811 | static void ix86_reorder_insn (rtx *, rtx *); | |
812 | static struct machine_function * ix86_init_machine_status (void); | |
813 | static int ix86_split_to_parts (rtx, rtx *, enum machine_mode); | |
814 | static int ix86_nsaved_regs (void); | |
815 | static void ix86_emit_save_regs (void); | |
816 | static void ix86_emit_save_regs_using_mov (rtx, HOST_WIDE_INT); | |
72613dfa | 817 | static void ix86_emit_restore_regs_using_mov (rtx, HOST_WIDE_INT, int); |
b96a374d | 818 | static void ix86_output_function_epilogue (FILE *, HOST_WIDE_INT); |
b96a374d AJ |
819 | static void ix86_sched_reorder_ppro (rtx *, rtx *); |
820 | static HOST_WIDE_INT ix86_GOT_alias_set (void); | |
821 | static void ix86_adjust_counter (rtx, HOST_WIDE_INT); | |
822 | static rtx ix86_expand_aligntest (rtx, int); | |
4e44c1ef | 823 | static void ix86_expand_strlensi_unroll_1 (rtx, rtx, rtx); |
b96a374d AJ |
824 | static int ix86_issue_rate (void); |
825 | static int ix86_adjust_cost (rtx, rtx, rtx, int); | |
826 | static void ix86_sched_init (FILE *, int, int); | |
827 | static int ix86_sched_reorder (FILE *, int, rtx *, int *, int); | |
828 | static int ix86_variable_issue (FILE *, int, rtx, int); | |
829 | static int ia32_use_dfa_pipeline_interface (void); | |
830 | static int ia32_multipass_dfa_lookahead (void); | |
831 | static void ix86_init_mmx_sse_builtins (void); | |
832 | static rtx x86_this_parameter (tree); | |
833 | static void x86_output_mi_thunk (FILE *, tree, HOST_WIDE_INT, | |
834 | HOST_WIDE_INT, tree); | |
835 | static bool x86_can_output_mi_thunk (tree, HOST_WIDE_INT, HOST_WIDE_INT, tree); | |
836 | static void x86_file_start (void); | |
837 | static void ix86_reorg (void); | |
c35d187f RH |
838 | static bool ix86_expand_carry_flag_compare (enum rtx_code, rtx, rtx, rtx*); |
839 | static tree ix86_build_builtin_va_list (void); | |
a0524eb3 KH |
840 | static void ix86_setup_incoming_varargs (CUMULATIVE_ARGS *, enum machine_mode, |
841 | tree, int *, int); | |
e075ae69 RH |
842 | |
843 | struct ix86_address | |
844 | { | |
845 | rtx base, index, disp; | |
846 | HOST_WIDE_INT scale; | |
74dc3e94 | 847 | enum ix86_address_seg { SEG_DEFAULT, SEG_FS, SEG_GS } seg; |
e075ae69 | 848 | }; |
b08de47e | 849 | |
b96a374d AJ |
850 | static int ix86_decompose_address (rtx, struct ix86_address *); |
851 | static int ix86_address_cost (rtx); | |
852 | static bool ix86_cannot_force_const_mem (rtx); | |
853 | static rtx ix86_delegitimize_address (rtx); | |
bd793c65 BS |
854 | |
855 | struct builtin_description; | |
b96a374d AJ |
856 | static rtx ix86_expand_sse_comi (const struct builtin_description *, |
857 | tree, rtx); | |
858 | static rtx ix86_expand_sse_compare (const struct builtin_description *, | |
859 | tree, rtx); | |
860 | static rtx ix86_expand_unop1_builtin (enum insn_code, tree, rtx); | |
861 | static rtx ix86_expand_unop_builtin (enum insn_code, tree, rtx, int); | |
862 | static rtx ix86_expand_binop_builtin (enum insn_code, tree, rtx); | |
863 | static rtx ix86_expand_store_builtin (enum insn_code, tree); | |
864 | static rtx safe_vector_operand (rtx, enum machine_mode); | |
865 | static enum rtx_code ix86_fp_compare_code_to_integer (enum rtx_code); | |
866 | static void ix86_fp_comparison_codes (enum rtx_code code, enum rtx_code *, | |
867 | enum rtx_code *, enum rtx_code *); | |
868 | static rtx ix86_expand_fp_compare (enum rtx_code, rtx, rtx, rtx, rtx *, rtx *); | |
869 | static int ix86_fp_comparison_arithmetics_cost (enum rtx_code code); | |
870 | static int ix86_fp_comparison_fcomi_cost (enum rtx_code code); | |
871 | static int ix86_fp_comparison_sahf_cost (enum rtx_code code); | |
872 | static int ix86_fp_comparison_cost (enum rtx_code code); | |
873 | static unsigned int ix86_select_alt_pic_regnum (void); | |
874 | static int ix86_save_reg (unsigned int, int); | |
875 | static void ix86_compute_frame_layout (struct ix86_frame *); | |
876 | static int ix86_comp_type_attributes (tree, tree); | |
e767b5be | 877 | static int ix86_function_regparm (tree, tree); |
91d231cb | 878 | const struct attribute_spec ix86_attribute_table[]; |
b96a374d AJ |
879 | static bool ix86_function_ok_for_sibcall (tree, tree); |
880 | static tree ix86_handle_cdecl_attribute (tree *, tree, tree, int, bool *); | |
881 | static tree ix86_handle_regparm_attribute (tree *, tree, tree, int, bool *); | |
882 | static int ix86_value_regno (enum machine_mode); | |
883 | static bool contains_128bit_aligned_vector_p (tree); | |
884 | static bool ix86_ms_bitfield_layout_p (tree); | |
885 | static tree ix86_handle_struct_attribute (tree *, tree, tree, int, bool *); | |
886 | static int extended_reg_mentioned_1 (rtx *, void *); | |
887 | static bool ix86_rtx_costs (rtx, int, int, int *); | |
888 | static int min_insn_size (rtx); | |
7c262518 | 889 | |
21c318ba | 890 | #if defined (DO_GLOBAL_CTORS_BODY) && defined (HAS_INIT_SECTION) |
b96a374d | 891 | static void ix86_svr3_asm_out_constructor (rtx, int); |
2cc07db4 | 892 | #endif |
e56feed6 | 893 | |
53c17031 JH |
894 | /* Register class used for passing given 64bit part of the argument. |
895 | These represent classes as documented by the PS ABI, with the exception | |
896 | of SSESF, SSEDF classes, that are basically SSE class, just gcc will | |
d1f87653 | 897 | use SF or DFmode move instead of DImode to avoid reformatting penalties. |
53c17031 | 898 | |
d1f87653 | 899 | Similarly we play games with INTEGERSI_CLASS to use cheaper SImode moves |
53c17031 JH |
900 | whenever possible (upper half does contain padding). |
901 | */ | |
902 | enum x86_64_reg_class | |
903 | { | |
904 | X86_64_NO_CLASS, | |
905 | X86_64_INTEGER_CLASS, | |
906 | X86_64_INTEGERSI_CLASS, | |
907 | X86_64_SSE_CLASS, | |
908 | X86_64_SSESF_CLASS, | |
909 | X86_64_SSEDF_CLASS, | |
910 | X86_64_SSEUP_CLASS, | |
911 | X86_64_X87_CLASS, | |
912 | X86_64_X87UP_CLASS, | |
913 | X86_64_MEMORY_CLASS | |
914 | }; | |
0b5826ac | 915 | static const char * const x86_64_reg_class_name[] = |
53c17031 JH |
916 | {"no", "integer", "integerSI", "sse", "sseSF", "sseDF", "sseup", "x87", "x87up", "no"}; |
917 | ||
918 | #define MAX_CLASSES 4 | |
b96a374d AJ |
919 | static int classify_argument (enum machine_mode, tree, |
920 | enum x86_64_reg_class [MAX_CLASSES], int); | |
921 | static int examine_argument (enum machine_mode, tree, int, int *, int *); | |
922 | static rtx construct_container (enum machine_mode, tree, int, int, int, | |
923 | const int *, int); | |
924 | static enum x86_64_reg_class merge_classes (enum x86_64_reg_class, | |
925 | enum x86_64_reg_class); | |
881b2a96 | 926 | |
43f3a59d | 927 | /* Table of constants used by fldpi, fldln2, etc.... */ |
881b2a96 RS |
928 | static REAL_VALUE_TYPE ext_80387_constants_table [5]; |
929 | static bool ext_80387_constants_init = 0; | |
b96a374d | 930 | static void init_ext_80387_constants (void); |
672a6f42 NB |
931 | \f |
932 | /* Initialize the GCC target structure. */ | |
91d231cb JM |
933 | #undef TARGET_ATTRIBUTE_TABLE |
934 | #define TARGET_ATTRIBUTE_TABLE ix86_attribute_table | |
672a6f42 | 935 | #ifdef TARGET_DLLIMPORT_DECL_ATTRIBUTES |
f5f4be42 NB |
936 | # undef TARGET_MERGE_DECL_ATTRIBUTES |
937 | # define TARGET_MERGE_DECL_ATTRIBUTES merge_dllimport_decl_attributes | |
672a6f42 NB |
938 | #endif |
939 | ||
8d8e52be JM |
940 | #undef TARGET_COMP_TYPE_ATTRIBUTES |
941 | #define TARGET_COMP_TYPE_ATTRIBUTES ix86_comp_type_attributes | |
942 | ||
f6155fda SS |
943 | #undef TARGET_INIT_BUILTINS |
944 | #define TARGET_INIT_BUILTINS ix86_init_builtins | |
945 | ||
946 | #undef TARGET_EXPAND_BUILTIN | |
947 | #define TARGET_EXPAND_BUILTIN ix86_expand_builtin | |
948 | ||
bd09bdeb RH |
949 | #undef TARGET_ASM_FUNCTION_EPILOGUE |
950 | #define TARGET_ASM_FUNCTION_EPILOGUE ix86_output_function_epilogue | |
08c148a8 | 951 | |
17b53c33 NB |
952 | #undef TARGET_ASM_OPEN_PAREN |
953 | #define TARGET_ASM_OPEN_PAREN "" | |
954 | #undef TARGET_ASM_CLOSE_PAREN | |
955 | #define TARGET_ASM_CLOSE_PAREN "" | |
956 | ||
301d03af RS |
957 | #undef TARGET_ASM_ALIGNED_HI_OP |
958 | #define TARGET_ASM_ALIGNED_HI_OP ASM_SHORT | |
959 | #undef TARGET_ASM_ALIGNED_SI_OP | |
960 | #define TARGET_ASM_ALIGNED_SI_OP ASM_LONG | |
961 | #ifdef ASM_QUAD | |
962 | #undef TARGET_ASM_ALIGNED_DI_OP | |
963 | #define TARGET_ASM_ALIGNED_DI_OP ASM_QUAD | |
964 | #endif | |
965 | ||
966 | #undef TARGET_ASM_UNALIGNED_HI_OP | |
967 | #define TARGET_ASM_UNALIGNED_HI_OP TARGET_ASM_ALIGNED_HI_OP | |
968 | #undef TARGET_ASM_UNALIGNED_SI_OP | |
969 | #define TARGET_ASM_UNALIGNED_SI_OP TARGET_ASM_ALIGNED_SI_OP | |
970 | #undef TARGET_ASM_UNALIGNED_DI_OP | |
971 | #define TARGET_ASM_UNALIGNED_DI_OP TARGET_ASM_ALIGNED_DI_OP | |
972 | ||
c237e94a ZW |
973 | #undef TARGET_SCHED_ADJUST_COST |
974 | #define TARGET_SCHED_ADJUST_COST ix86_adjust_cost | |
975 | #undef TARGET_SCHED_ISSUE_RATE | |
976 | #define TARGET_SCHED_ISSUE_RATE ix86_issue_rate | |
977 | #undef TARGET_SCHED_VARIABLE_ISSUE | |
978 | #define TARGET_SCHED_VARIABLE_ISSUE ix86_variable_issue | |
979 | #undef TARGET_SCHED_INIT | |
980 | #define TARGET_SCHED_INIT ix86_sched_init | |
981 | #undef TARGET_SCHED_REORDER | |
982 | #define TARGET_SCHED_REORDER ix86_sched_reorder | |
fce5a9f2 | 983 | #undef TARGET_SCHED_USE_DFA_PIPELINE_INTERFACE |
9b690711 RH |
984 | #define TARGET_SCHED_USE_DFA_PIPELINE_INTERFACE \ |
985 | ia32_use_dfa_pipeline_interface | |
986 | #undef TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD | |
987 | #define TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD \ | |
988 | ia32_multipass_dfa_lookahead | |
c237e94a | 989 | |
4977bab6 ZW |
990 | #undef TARGET_FUNCTION_OK_FOR_SIBCALL |
991 | #define TARGET_FUNCTION_OK_FOR_SIBCALL ix86_function_ok_for_sibcall | |
992 | ||
f996902d RH |
993 | #ifdef HAVE_AS_TLS |
994 | #undef TARGET_HAVE_TLS | |
995 | #define TARGET_HAVE_TLS true | |
996 | #endif | |
3a04ff64 RH |
997 | #undef TARGET_CANNOT_FORCE_CONST_MEM |
998 | #define TARGET_CANNOT_FORCE_CONST_MEM ix86_cannot_force_const_mem | |
f996902d | 999 | |
7daebb7a | 1000 | #undef TARGET_DELEGITIMIZE_ADDRESS |
69bd9368 | 1001 | #define TARGET_DELEGITIMIZE_ADDRESS ix86_delegitimize_address |
7daebb7a | 1002 | |
4977bab6 ZW |
1003 | #undef TARGET_MS_BITFIELD_LAYOUT_P |
1004 | #define TARGET_MS_BITFIELD_LAYOUT_P ix86_ms_bitfield_layout_p | |
1005 | ||
c590b625 RH |
1006 | #undef TARGET_ASM_OUTPUT_MI_THUNK |
1007 | #define TARGET_ASM_OUTPUT_MI_THUNK x86_output_mi_thunk | |
3961e8fe RH |
1008 | #undef TARGET_ASM_CAN_OUTPUT_MI_THUNK |
1009 | #define TARGET_ASM_CAN_OUTPUT_MI_THUNK x86_can_output_mi_thunk | |
c590b625 | 1010 | |
1bc7c5b6 ZW |
1011 | #undef TARGET_ASM_FILE_START |
1012 | #define TARGET_ASM_FILE_START x86_file_start | |
1013 | ||
3c50106f RH |
1014 | #undef TARGET_RTX_COSTS |
1015 | #define TARGET_RTX_COSTS ix86_rtx_costs | |
dcefdf67 RH |
1016 | #undef TARGET_ADDRESS_COST |
1017 | #define TARGET_ADDRESS_COST ix86_address_cost | |
3c50106f | 1018 | |
e129d93a ILT |
1019 | #undef TARGET_FIXED_CONDITION_CODE_REGS |
1020 | #define TARGET_FIXED_CONDITION_CODE_REGS ix86_fixed_condition_code_regs | |
1021 | #undef TARGET_CC_MODES_COMPATIBLE | |
1022 | #define TARGET_CC_MODES_COMPATIBLE ix86_cc_modes_compatible | |
1023 | ||
18dbd950 RS |
1024 | #undef TARGET_MACHINE_DEPENDENT_REORG |
1025 | #define TARGET_MACHINE_DEPENDENT_REORG ix86_reorg | |
1026 | ||
c35d187f RH |
1027 | #undef TARGET_BUILD_BUILTIN_VA_LIST |
1028 | #define TARGET_BUILD_BUILTIN_VA_LIST ix86_build_builtin_va_list | |
1029 | ||
9184f892 KH |
1030 | #undef TARGET_PROMOTE_PROTOTYPES |
1031 | #define TARGET_PROMOTE_PROTOTYPES hook_bool_tree_true | |
1032 | ||
a0524eb3 KH |
1033 | #undef TARGET_SETUP_INCOMING_VARARGS |
1034 | #define TARGET_SETUP_INCOMING_VARARGS ix86_setup_incoming_varargs | |
1035 | ||
f6897b10 | 1036 | struct gcc_target targetm = TARGET_INITIALIZER; |
e075ae69 | 1037 | \f |
67c2b45f JS |
1038 | /* The svr4 ABI for the i386 says that records and unions are returned |
1039 | in memory. */ | |
1040 | #ifndef DEFAULT_PCC_STRUCT_RETURN | |
1041 | #define DEFAULT_PCC_STRUCT_RETURN 1 | |
1042 | #endif | |
1043 | ||
f5316dfe MM |
1044 | /* Sometimes certain combinations of command options do not make |
1045 | sense on a particular target machine. You can define a macro | |
1046 | `OVERRIDE_OPTIONS' to take account of this. This macro, if | |
1047 | defined, is executed once just after all the command options have | |
1048 | been parsed. | |
1049 | ||
1050 | Don't use this macro to turn on various extra optimizations for | |
1051 | `-O'. That is what `OPTIMIZATION_OPTIONS' is for. */ | |
1052 | ||
1053 | void | |
b96a374d | 1054 | override_options (void) |
f5316dfe | 1055 | { |
400500c4 | 1056 | int i; |
e075ae69 RH |
1057 | /* Comes from final.c -- no real reason to change it. */ |
1058 | #define MAX_CODE_ALIGN 16 | |
f5316dfe | 1059 | |
c8c5cb99 SC |
1060 | static struct ptt |
1061 | { | |
8b60264b KG |
1062 | const struct processor_costs *cost; /* Processor costs */ |
1063 | const int target_enable; /* Target flags to enable. */ | |
1064 | const int target_disable; /* Target flags to disable. */ | |
1065 | const int align_loop; /* Default alignments. */ | |
2cca7283 | 1066 | const int align_loop_max_skip; |
8b60264b | 1067 | const int align_jump; |
2cca7283 | 1068 | const int align_jump_max_skip; |
8b60264b | 1069 | const int align_func; |
e075ae69 | 1070 | } |
0f290768 | 1071 | const processor_target_table[PROCESSOR_max] = |
e075ae69 | 1072 | { |
4977bab6 ZW |
1073 | {&i386_cost, 0, 0, 4, 3, 4, 3, 4}, |
1074 | {&i486_cost, 0, 0, 16, 15, 16, 15, 16}, | |
1075 | {&pentium_cost, 0, 0, 16, 7, 16, 7, 16}, | |
1076 | {&pentiumpro_cost, 0, 0, 16, 15, 16, 7, 16}, | |
1077 | {&k6_cost, 0, 0, 32, 7, 32, 7, 32}, | |
1078 | {&athlon_cost, 0, 0, 16, 7, 16, 7, 16}, | |
1079 | {&pentium4_cost, 0, 0, 0, 0, 0, 0, 0}, | |
1080 | {&k8_cost, 0, 0, 16, 7, 16, 7, 16} | |
e075ae69 RH |
1081 | }; |
1082 | ||
f4365627 | 1083 | static const char * const cpu_names[] = TARGET_CPU_DEFAULT_NAMES; |
e075ae69 RH |
1084 | static struct pta |
1085 | { | |
8b60264b KG |
1086 | const char *const name; /* processor name or nickname. */ |
1087 | const enum processor_type processor; | |
0dd0e980 JH |
1088 | const enum pta_flags |
1089 | { | |
1090 | PTA_SSE = 1, | |
1091 | PTA_SSE2 = 2, | |
1092 | PTA_MMX = 4, | |
f4365627 | 1093 | PTA_PREFETCH_SSE = 8, |
0dd0e980 | 1094 | PTA_3DNOW = 16, |
4977bab6 ZW |
1095 | PTA_3DNOW_A = 64, |
1096 | PTA_64BIT = 128 | |
0dd0e980 | 1097 | } flags; |
e075ae69 | 1098 | } |
0f290768 | 1099 | const processor_alias_table[] = |
e075ae69 | 1100 | { |
0dd0e980 JH |
1101 | {"i386", PROCESSOR_I386, 0}, |
1102 | {"i486", PROCESSOR_I486, 0}, | |
1103 | {"i586", PROCESSOR_PENTIUM, 0}, | |
1104 | {"pentium", PROCESSOR_PENTIUM, 0}, | |
1105 | {"pentium-mmx", PROCESSOR_PENTIUM, PTA_MMX}, | |
3780101d JG |
1106 | {"winchip-c6", PROCESSOR_I486, PTA_MMX}, |
1107 | {"winchip2", PROCESSOR_I486, PTA_MMX | PTA_3DNOW}, | |
1108 | {"c3", PROCESSOR_I486, PTA_MMX | PTA_3DNOW}, | |
3462df62 | 1109 | {"c3-2", PROCESSOR_PENTIUMPRO, PTA_MMX | PTA_PREFETCH_SSE | PTA_SSE}, |
0dd0e980 JH |
1110 | {"i686", PROCESSOR_PENTIUMPRO, 0}, |
1111 | {"pentiumpro", PROCESSOR_PENTIUMPRO, 0}, | |
1112 | {"pentium2", PROCESSOR_PENTIUMPRO, PTA_MMX}, | |
f4365627 | 1113 | {"pentium3", PROCESSOR_PENTIUMPRO, PTA_MMX | PTA_SSE | PTA_PREFETCH_SSE}, |
0dd0e980 | 1114 | {"pentium4", PROCESSOR_PENTIUM4, PTA_SSE | PTA_SSE2 | |
f4365627 | 1115 | PTA_MMX | PTA_PREFETCH_SSE}, |
0dd0e980 JH |
1116 | {"k6", PROCESSOR_K6, PTA_MMX}, |
1117 | {"k6-2", PROCESSOR_K6, PTA_MMX | PTA_3DNOW}, | |
1118 | {"k6-3", PROCESSOR_K6, PTA_MMX | PTA_3DNOW}, | |
f4365627 | 1119 | {"athlon", PROCESSOR_ATHLON, PTA_MMX | PTA_PREFETCH_SSE | PTA_3DNOW |
0dd0e980 | 1120 | | PTA_3DNOW_A}, |
f4365627 | 1121 | {"athlon-tbird", PROCESSOR_ATHLON, PTA_MMX | PTA_PREFETCH_SSE |
0dd0e980 | 1122 | | PTA_3DNOW | PTA_3DNOW_A}, |
f4365627 | 1123 | {"athlon-4", PROCESSOR_ATHLON, PTA_MMX | PTA_PREFETCH_SSE | PTA_3DNOW |
0dd0e980 | 1124 | | PTA_3DNOW_A | PTA_SSE}, |
f4365627 | 1125 | {"athlon-xp", PROCESSOR_ATHLON, PTA_MMX | PTA_PREFETCH_SSE | PTA_3DNOW |
0dd0e980 | 1126 | | PTA_3DNOW_A | PTA_SSE}, |
f4365627 | 1127 | {"athlon-mp", PROCESSOR_ATHLON, PTA_MMX | PTA_PREFETCH_SSE | PTA_3DNOW |
0dd0e980 | 1128 | | PTA_3DNOW_A | PTA_SSE}, |
3fec9fa9 JJ |
1129 | {"x86-64", PROCESSOR_K8, PTA_MMX | PTA_PREFETCH_SSE | PTA_64BIT |
1130 | | PTA_SSE | PTA_SSE2 }, | |
4977bab6 ZW |
1131 | {"k8", PROCESSOR_K8, PTA_MMX | PTA_PREFETCH_SSE | PTA_3DNOW | PTA_64BIT |
1132 | | PTA_3DNOW_A | PTA_SSE | PTA_SSE2}, | |
9a609388 JH |
1133 | {"opteron", PROCESSOR_K8, PTA_MMX | PTA_PREFETCH_SSE | PTA_3DNOW | PTA_64BIT |
1134 | | PTA_3DNOW_A | PTA_SSE | PTA_SSE2}, | |
1135 | {"athlon64", PROCESSOR_K8, PTA_MMX | PTA_PREFETCH_SSE | PTA_3DNOW | PTA_64BIT | |
1136 | | PTA_3DNOW_A | PTA_SSE | PTA_SSE2}, | |
1137 | {"athlon-fx", PROCESSOR_K8, PTA_MMX | PTA_PREFETCH_SSE | PTA_3DNOW | PTA_64BIT | |
1138 | | PTA_3DNOW_A | PTA_SSE | PTA_SSE2}, | |
3af4bd89 | 1139 | }; |
c8c5cb99 | 1140 | |
ca7558fc | 1141 | int const pta_size = ARRAY_SIZE (processor_alias_table); |
c8c5cb99 | 1142 | |
41ed2237 | 1143 | /* Set the default values for switches whose default depends on TARGET_64BIT |
d1f87653 | 1144 | in case they weren't overwritten by command line options. */ |
55ba61f3 JH |
1145 | if (TARGET_64BIT) |
1146 | { | |
1147 | if (flag_omit_frame_pointer == 2) | |
1148 | flag_omit_frame_pointer = 1; | |
1149 | if (flag_asynchronous_unwind_tables == 2) | |
1150 | flag_asynchronous_unwind_tables = 1; | |
1151 | if (flag_pcc_struct_return == 2) | |
1152 | flag_pcc_struct_return = 0; | |
1153 | } | |
1154 | else | |
1155 | { | |
1156 | if (flag_omit_frame_pointer == 2) | |
1157 | flag_omit_frame_pointer = 0; | |
1158 | if (flag_asynchronous_unwind_tables == 2) | |
1159 | flag_asynchronous_unwind_tables = 0; | |
1160 | if (flag_pcc_struct_return == 2) | |
7c712dcc | 1161 | flag_pcc_struct_return = DEFAULT_PCC_STRUCT_RETURN; |
55ba61f3 JH |
1162 | } |
1163 | ||
f5316dfe MM |
1164 | #ifdef SUBTARGET_OVERRIDE_OPTIONS |
1165 | SUBTARGET_OVERRIDE_OPTIONS; | |
1166 | #endif | |
1167 | ||
9e555526 RH |
1168 | if (!ix86_tune_string && ix86_arch_string) |
1169 | ix86_tune_string = ix86_arch_string; | |
1170 | if (!ix86_tune_string) | |
1171 | ix86_tune_string = cpu_names [TARGET_CPU_DEFAULT]; | |
f4365627 | 1172 | if (!ix86_arch_string) |
3fec9fa9 | 1173 | ix86_arch_string = TARGET_64BIT ? "x86-64" : "i386"; |
e075ae69 | 1174 | |
6189a572 JH |
1175 | if (ix86_cmodel_string != 0) |
1176 | { | |
1177 | if (!strcmp (ix86_cmodel_string, "small")) | |
1178 | ix86_cmodel = flag_pic ? CM_SMALL_PIC : CM_SMALL; | |
1179 | else if (flag_pic) | |
c725bd79 | 1180 | sorry ("code model %s not supported in PIC mode", ix86_cmodel_string); |
6189a572 JH |
1181 | else if (!strcmp (ix86_cmodel_string, "32")) |
1182 | ix86_cmodel = CM_32; | |
1183 | else if (!strcmp (ix86_cmodel_string, "kernel") && !flag_pic) | |
1184 | ix86_cmodel = CM_KERNEL; | |
1185 | else if (!strcmp (ix86_cmodel_string, "medium") && !flag_pic) | |
1186 | ix86_cmodel = CM_MEDIUM; | |
1187 | else if (!strcmp (ix86_cmodel_string, "large") && !flag_pic) | |
1188 | ix86_cmodel = CM_LARGE; | |
1189 | else | |
1190 | error ("bad value (%s) for -mcmodel= switch", ix86_cmodel_string); | |
1191 | } | |
1192 | else | |
1193 | { | |
1194 | ix86_cmodel = CM_32; | |
1195 | if (TARGET_64BIT) | |
1196 | ix86_cmodel = flag_pic ? CM_SMALL_PIC : CM_SMALL; | |
1197 | } | |
c93e80a5 JH |
1198 | if (ix86_asm_string != 0) |
1199 | { | |
1200 | if (!strcmp (ix86_asm_string, "intel")) | |
1201 | ix86_asm_dialect = ASM_INTEL; | |
1202 | else if (!strcmp (ix86_asm_string, "att")) | |
1203 | ix86_asm_dialect = ASM_ATT; | |
1204 | else | |
1205 | error ("bad value (%s) for -masm= switch", ix86_asm_string); | |
1206 | } | |
6189a572 | 1207 | if ((TARGET_64BIT == 0) != (ix86_cmodel == CM_32)) |
c725bd79 | 1208 | error ("code model `%s' not supported in the %s bit mode", |
6189a572 JH |
1209 | ix86_cmodel_string, TARGET_64BIT ? "64" : "32"); |
1210 | if (ix86_cmodel == CM_LARGE) | |
c725bd79 | 1211 | sorry ("code model `large' not supported yet"); |
0c2dc519 | 1212 | if ((TARGET_64BIT != 0) != ((target_flags & MASK_64BIT) != 0)) |
c725bd79 | 1213 | sorry ("%i-bit mode not compiled in", |
0c2dc519 | 1214 | (target_flags & MASK_64BIT) ? 64 : 32); |
6189a572 | 1215 | |
f4365627 JH |
1216 | for (i = 0; i < pta_size; i++) |
1217 | if (! strcmp (ix86_arch_string, processor_alias_table[i].name)) | |
1218 | { | |
1219 | ix86_arch = processor_alias_table[i].processor; | |
1220 | /* Default cpu tuning to the architecture. */ | |
9e555526 | 1221 | ix86_tune = ix86_arch; |
f4365627 | 1222 | if (processor_alias_table[i].flags & PTA_MMX |
9ef1b13a | 1223 | && !(target_flags_explicit & MASK_MMX)) |
f4365627 JH |
1224 | target_flags |= MASK_MMX; |
1225 | if (processor_alias_table[i].flags & PTA_3DNOW | |
9ef1b13a | 1226 | && !(target_flags_explicit & MASK_3DNOW)) |
f4365627 JH |
1227 | target_flags |= MASK_3DNOW; |
1228 | if (processor_alias_table[i].flags & PTA_3DNOW_A | |
9ef1b13a | 1229 | && !(target_flags_explicit & MASK_3DNOW_A)) |
f4365627 JH |
1230 | target_flags |= MASK_3DNOW_A; |
1231 | if (processor_alias_table[i].flags & PTA_SSE | |
9ef1b13a | 1232 | && !(target_flags_explicit & MASK_SSE)) |
f4365627 JH |
1233 | target_flags |= MASK_SSE; |
1234 | if (processor_alias_table[i].flags & PTA_SSE2 | |
9ef1b13a | 1235 | && !(target_flags_explicit & MASK_SSE2)) |
f4365627 JH |
1236 | target_flags |= MASK_SSE2; |
1237 | if (processor_alias_table[i].flags & PTA_PREFETCH_SSE) | |
1238 | x86_prefetch_sse = true; | |
4977bab6 ZW |
1239 | if (TARGET_64BIT && !(processor_alias_table[i].flags & PTA_64BIT)) |
1240 | error ("CPU you selected does not support x86-64 instruction set"); | |
f4365627 JH |
1241 | break; |
1242 | } | |
400500c4 | 1243 | |
f4365627 JH |
1244 | if (i == pta_size) |
1245 | error ("bad value (%s) for -march= switch", ix86_arch_string); | |
e075ae69 | 1246 | |
f4365627 | 1247 | for (i = 0; i < pta_size; i++) |
9e555526 | 1248 | if (! strcmp (ix86_tune_string, processor_alias_table[i].name)) |
f4365627 | 1249 | { |
9e555526 | 1250 | ix86_tune = processor_alias_table[i].processor; |
4977bab6 ZW |
1251 | if (TARGET_64BIT && !(processor_alias_table[i].flags & PTA_64BIT)) |
1252 | error ("CPU you selected does not support x86-64 instruction set"); | |
f4365627 JH |
1253 | break; |
1254 | } | |
1255 | if (processor_alias_table[i].flags & PTA_PREFETCH_SSE) | |
1256 | x86_prefetch_sse = true; | |
1257 | if (i == pta_size) | |
9e555526 | 1258 | error ("bad value (%s) for -mtune= switch", ix86_tune_string); |
e075ae69 | 1259 | |
2ab0437e JH |
1260 | if (optimize_size) |
1261 | ix86_cost = &size_cost; | |
1262 | else | |
9e555526 RH |
1263 | ix86_cost = processor_target_table[ix86_tune].cost; |
1264 | target_flags |= processor_target_table[ix86_tune].target_enable; | |
1265 | target_flags &= ~processor_target_table[ix86_tune].target_disable; | |
e075ae69 | 1266 | |
36edd3cc BS |
1267 | /* Arrange to set up i386_stack_locals for all functions. */ |
1268 | init_machine_status = ix86_init_machine_status; | |
fce5a9f2 | 1269 | |
0f290768 | 1270 | /* Validate -mregparm= value. */ |
e075ae69 | 1271 | if (ix86_regparm_string) |
b08de47e | 1272 | { |
400500c4 RK |
1273 | i = atoi (ix86_regparm_string); |
1274 | if (i < 0 || i > REGPARM_MAX) | |
1275 | error ("-mregparm=%d is not between 0 and %d", i, REGPARM_MAX); | |
1276 | else | |
1277 | ix86_regparm = i; | |
b08de47e | 1278 | } |
0d7d98ee JH |
1279 | else |
1280 | if (TARGET_64BIT) | |
1281 | ix86_regparm = REGPARM_MAX; | |
b08de47e | 1282 | |
3e18fdf6 | 1283 | /* If the user has provided any of the -malign-* options, |
a4f31c00 | 1284 | warn and use that value only if -falign-* is not set. |
3e18fdf6 | 1285 | Remove this code in GCC 3.2 or later. */ |
e075ae69 | 1286 | if (ix86_align_loops_string) |
b08de47e | 1287 | { |
3e18fdf6 GK |
1288 | warning ("-malign-loops is obsolete, use -falign-loops"); |
1289 | if (align_loops == 0) | |
1290 | { | |
1291 | i = atoi (ix86_align_loops_string); | |
1292 | if (i < 0 || i > MAX_CODE_ALIGN) | |
1293 | error ("-malign-loops=%d is not between 0 and %d", i, MAX_CODE_ALIGN); | |
1294 | else | |
1295 | align_loops = 1 << i; | |
1296 | } | |
b08de47e | 1297 | } |
3af4bd89 | 1298 | |
e075ae69 | 1299 | if (ix86_align_jumps_string) |
b08de47e | 1300 | { |
3e18fdf6 GK |
1301 | warning ("-malign-jumps is obsolete, use -falign-jumps"); |
1302 | if (align_jumps == 0) | |
1303 | { | |
1304 | i = atoi (ix86_align_jumps_string); | |
1305 | if (i < 0 || i > MAX_CODE_ALIGN) | |
1306 | error ("-malign-loops=%d is not between 0 and %d", i, MAX_CODE_ALIGN); | |
1307 | else | |
1308 | align_jumps = 1 << i; | |
1309 | } | |
b08de47e | 1310 | } |
b08de47e | 1311 | |
e075ae69 | 1312 | if (ix86_align_funcs_string) |
b08de47e | 1313 | { |
3e18fdf6 GK |
1314 | warning ("-malign-functions is obsolete, use -falign-functions"); |
1315 | if (align_functions == 0) | |
1316 | { | |
1317 | i = atoi (ix86_align_funcs_string); | |
1318 | if (i < 0 || i > MAX_CODE_ALIGN) | |
1319 | error ("-malign-loops=%d is not between 0 and %d", i, MAX_CODE_ALIGN); | |
1320 | else | |
1321 | align_functions = 1 << i; | |
1322 | } | |
b08de47e | 1323 | } |
3af4bd89 | 1324 | |
3e18fdf6 | 1325 | /* Default align_* from the processor table. */ |
3e18fdf6 | 1326 | if (align_loops == 0) |
2cca7283 | 1327 | { |
9e555526 RH |
1328 | align_loops = processor_target_table[ix86_tune].align_loop; |
1329 | align_loops_max_skip = processor_target_table[ix86_tune].align_loop_max_skip; | |
2cca7283 | 1330 | } |
3e18fdf6 | 1331 | if (align_jumps == 0) |
2cca7283 | 1332 | { |
9e555526 RH |
1333 | align_jumps = processor_target_table[ix86_tune].align_jump; |
1334 | align_jumps_max_skip = processor_target_table[ix86_tune].align_jump_max_skip; | |
2cca7283 | 1335 | } |
3e18fdf6 | 1336 | if (align_functions == 0) |
2cca7283 | 1337 | { |
9e555526 | 1338 | align_functions = processor_target_table[ix86_tune].align_func; |
2cca7283 | 1339 | } |
3e18fdf6 | 1340 | |
e4c0478d | 1341 | /* Validate -mpreferred-stack-boundary= value, or provide default. |
fbb83b43 AO |
1342 | The default of 128 bits is for Pentium III's SSE __m128, but we |
1343 | don't want additional code to keep the stack aligned when | |
1344 | optimizing for code size. */ | |
1345 | ix86_preferred_stack_boundary = (optimize_size | |
ef49d42e | 1346 | ? TARGET_64BIT ? 128 : 32 |
fbb83b43 | 1347 | : 128); |
e075ae69 | 1348 | if (ix86_preferred_stack_boundary_string) |
3af4bd89 | 1349 | { |
400500c4 | 1350 | i = atoi (ix86_preferred_stack_boundary_string); |
ef49d42e | 1351 | if (i < (TARGET_64BIT ? 4 : 2) || i > 12) |
c6257c5d | 1352 | error ("-mpreferred-stack-boundary=%d is not between %d and 12", i, |
ef49d42e | 1353 | TARGET_64BIT ? 4 : 2); |
400500c4 RK |
1354 | else |
1355 | ix86_preferred_stack_boundary = (1 << i) * BITS_PER_UNIT; | |
3af4bd89 | 1356 | } |
77a989d1 | 1357 | |
0f290768 | 1358 | /* Validate -mbranch-cost= value, or provide default. */ |
9e555526 | 1359 | ix86_branch_cost = processor_target_table[ix86_tune].cost->branch_cost; |
e075ae69 | 1360 | if (ix86_branch_cost_string) |
804a8ee0 | 1361 | { |
400500c4 RK |
1362 | i = atoi (ix86_branch_cost_string); |
1363 | if (i < 0 || i > 5) | |
1364 | error ("-mbranch-cost=%d is not between 0 and 5", i); | |
1365 | else | |
1366 | ix86_branch_cost = i; | |
804a8ee0 | 1367 | } |
804a8ee0 | 1368 | |
f996902d RH |
1369 | if (ix86_tls_dialect_string) |
1370 | { | |
1371 | if (strcmp (ix86_tls_dialect_string, "gnu") == 0) | |
1372 | ix86_tls_dialect = TLS_DIALECT_GNU; | |
1373 | else if (strcmp (ix86_tls_dialect_string, "sun") == 0) | |
1374 | ix86_tls_dialect = TLS_DIALECT_SUN; | |
1375 | else | |
1376 | error ("bad value (%s) for -mtls-dialect= switch", | |
1377 | ix86_tls_dialect_string); | |
1378 | } | |
1379 | ||
e9a25f70 JL |
1380 | /* Keep nonleaf frame pointers. */ |
1381 | if (TARGET_OMIT_LEAF_FRAME_POINTER) | |
77a989d1 | 1382 | flag_omit_frame_pointer = 1; |
e075ae69 RH |
1383 | |
1384 | /* If we're doing fast math, we don't care about comparison order | |
1385 | wrt NaNs. This lets us use a shorter comparison sequence. */ | |
de6c5979 | 1386 | if (flag_unsafe_math_optimizations) |
e075ae69 RH |
1387 | target_flags &= ~MASK_IEEE_FP; |
1388 | ||
30c99a84 RH |
1389 | /* If the architecture always has an FPU, turn off NO_FANCY_MATH_387, |
1390 | since the insns won't need emulation. */ | |
1391 | if (x86_arch_always_fancy_math_387 & (1 << ix86_arch)) | |
1392 | target_flags &= ~MASK_NO_FANCY_MATH_387; | |
1393 | ||
9e200aaf KC |
1394 | /* Turn on SSE2 builtins for -msse3. */ |
1395 | if (TARGET_SSE3) | |
22c7c85e L |
1396 | target_flags |= MASK_SSE2; |
1397 | ||
1398 | /* Turn on SSE builtins for -msse2. */ | |
1399 | if (TARGET_SSE2) | |
1400 | target_flags |= MASK_SSE; | |
1401 | ||
14f73b5a JH |
1402 | if (TARGET_64BIT) |
1403 | { | |
1404 | if (TARGET_ALIGN_DOUBLE) | |
c725bd79 | 1405 | error ("-malign-double makes no sense in the 64bit mode"); |
14f73b5a | 1406 | if (TARGET_RTD) |
c725bd79 | 1407 | error ("-mrtd calling convention not supported in the 64bit mode"); |
14f73b5a | 1408 | /* Enable by default the SSE and MMX builtins. */ |
965f5423 JH |
1409 | target_flags |= (MASK_SSE2 | MASK_SSE | MASK_MMX | MASK_128BIT_LONG_DOUBLE); |
1410 | ix86_fpmath = FPMATH_SSE; | |
14f73b5a | 1411 | } |
965f5423 | 1412 | else |
a5b378d6 JH |
1413 | { |
1414 | ix86_fpmath = FPMATH_387; | |
1415 | /* i386 ABI does not specify red zone. It still makes sense to use it | |
1416 | when programmer takes care to stack from being destroyed. */ | |
1417 | if (!(target_flags_explicit & MASK_NO_RED_ZONE)) | |
1418 | target_flags |= MASK_NO_RED_ZONE; | |
1419 | } | |
965f5423 JH |
1420 | |
1421 | if (ix86_fpmath_string != 0) | |
1422 | { | |
1423 | if (! strcmp (ix86_fpmath_string, "387")) | |
1424 | ix86_fpmath = FPMATH_387; | |
1425 | else if (! strcmp (ix86_fpmath_string, "sse")) | |
1426 | { | |
1427 | if (!TARGET_SSE) | |
1428 | { | |
1429 | warning ("SSE instruction set disabled, using 387 arithmetics"); | |
1430 | ix86_fpmath = FPMATH_387; | |
1431 | } | |
1432 | else | |
1433 | ix86_fpmath = FPMATH_SSE; | |
1434 | } | |
1435 | else if (! strcmp (ix86_fpmath_string, "387,sse") | |
1436 | || ! strcmp (ix86_fpmath_string, "sse,387")) | |
1437 | { | |
1438 | if (!TARGET_SSE) | |
1439 | { | |
1440 | warning ("SSE instruction set disabled, using 387 arithmetics"); | |
1441 | ix86_fpmath = FPMATH_387; | |
1442 | } | |
1443 | else if (!TARGET_80387) | |
1444 | { | |
1445 | warning ("387 instruction set disabled, using SSE arithmetics"); | |
1446 | ix86_fpmath = FPMATH_SSE; | |
1447 | } | |
1448 | else | |
1449 | ix86_fpmath = FPMATH_SSE | FPMATH_387; | |
1450 | } | |
fce5a9f2 | 1451 | else |
965f5423 JH |
1452 | error ("bad value (%s) for -mfpmath= switch", ix86_fpmath_string); |
1453 | } | |
14f73b5a | 1454 | |
a7180f70 BS |
1455 | /* It makes no sense to ask for just SSE builtins, so MMX is also turned |
1456 | on by -msse. */ | |
1457 | if (TARGET_SSE) | |
e37af218 RH |
1458 | { |
1459 | target_flags |= MASK_MMX; | |
1460 | x86_prefetch_sse = true; | |
1461 | } | |
c6036a37 | 1462 | |
47f339cf BS |
1463 | /* If it has 3DNow! it also has MMX so MMX is also turned on by -m3dnow */ |
1464 | if (TARGET_3DNOW) | |
1465 | { | |
1466 | target_flags |= MASK_MMX; | |
d1f87653 | 1467 | /* If we are targeting the Athlon architecture, enable the 3Dnow/MMX |
47f339cf BS |
1468 | extensions it adds. */ |
1469 | if (x86_3dnow_a & (1 << ix86_arch)) | |
1470 | target_flags |= MASK_3DNOW_A; | |
1471 | } | |
9e555526 | 1472 | if ((x86_accumulate_outgoing_args & TUNEMASK) |
9ef1b13a | 1473 | && !(target_flags_explicit & MASK_ACCUMULATE_OUTGOING_ARGS) |
c6036a37 JH |
1474 | && !optimize_size) |
1475 | target_flags |= MASK_ACCUMULATE_OUTGOING_ARGS; | |
623fe810 RH |
1476 | |
1477 | /* Figure out what ASM_GENERATE_INTERNAL_LABEL builds as a prefix. */ | |
1478 | { | |
1479 | char *p; | |
1480 | ASM_GENERATE_INTERNAL_LABEL (internal_label_prefix, "LX", 0); | |
1481 | p = strchr (internal_label_prefix, 'X'); | |
1482 | internal_label_prefix_len = p - internal_label_prefix; | |
1483 | *p = '\0'; | |
1484 | } | |
f5316dfe MM |
1485 | } |
1486 | \f | |
32b5b1aa | 1487 | void |
b96a374d | 1488 | optimization_options (int level, int size ATTRIBUTE_UNUSED) |
32b5b1aa | 1489 | { |
e9a25f70 JL |
1490 | /* For -O2 and beyond, turn off -fschedule-insns by default. It tends to |
1491 | make the problem with not enough registers even worse. */ | |
32b5b1aa SC |
1492 | #ifdef INSN_SCHEDULING |
1493 | if (level > 1) | |
1494 | flag_schedule_insns = 0; | |
1495 | #endif | |
55ba61f3 JH |
1496 | |
1497 | /* The default values of these switches depend on the TARGET_64BIT | |
1498 | that is not known at this moment. Mark these values with 2 and | |
1499 | let user the to override these. In case there is no command line option | |
1500 | specifying them, we will set the defaults in override_options. */ | |
1501 | if (optimize >= 1) | |
1502 | flag_omit_frame_pointer = 2; | |
1503 | flag_pcc_struct_return = 2; | |
1504 | flag_asynchronous_unwind_tables = 2; | |
32b5b1aa | 1505 | } |
b08de47e | 1506 | \f |
91d231cb JM |
1507 | /* Table of valid machine attributes. */ |
1508 | const struct attribute_spec ix86_attribute_table[] = | |
b08de47e | 1509 | { |
91d231cb | 1510 | /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler } */ |
b08de47e MM |
1511 | /* Stdcall attribute says callee is responsible for popping arguments |
1512 | if they are not variable. */ | |
91d231cb | 1513 | { "stdcall", 0, 0, false, true, true, ix86_handle_cdecl_attribute }, |
e91f04de CH |
1514 | /* Fastcall attribute says callee is responsible for popping arguments |
1515 | if they are not variable. */ | |
1516 | { "fastcall", 0, 0, false, true, true, ix86_handle_cdecl_attribute }, | |
91d231cb JM |
1517 | /* Cdecl attribute says the callee is a normal C declaration */ |
1518 | { "cdecl", 0, 0, false, true, true, ix86_handle_cdecl_attribute }, | |
b08de47e | 1519 | /* Regparm attribute specifies how many integer arguments are to be |
0f290768 | 1520 | passed in registers. */ |
91d231cb JM |
1521 | { "regparm", 1, 1, false, true, true, ix86_handle_regparm_attribute }, |
1522 | #ifdef TARGET_DLLIMPORT_DECL_ATTRIBUTES | |
3da1eb0b DS |
1523 | { "dllimport", 0, 0, false, false, false, ix86_handle_dll_attribute }, |
1524 | { "dllexport", 0, 0, false, false, false, ix86_handle_dll_attribute }, | |
1525 | { "shared", 0, 0, true, false, false, ix86_handle_shared_attribute }, | |
91d231cb | 1526 | #endif |
fe77449a DR |
1527 | { "ms_struct", 0, 0, false, false, false, ix86_handle_struct_attribute }, |
1528 | { "gcc_struct", 0, 0, false, false, false, ix86_handle_struct_attribute }, | |
91d231cb JM |
1529 | { NULL, 0, 0, false, false, false, NULL } |
1530 | }; | |
1531 | ||
5fbf0217 EB |
1532 | /* Decide whether we can make a sibling call to a function. DECL is the |
1533 | declaration of the function being targeted by the call and EXP is the | |
1534 | CALL_EXPR representing the call. */ | |
4977bab6 ZW |
1535 | |
1536 | static bool | |
b96a374d | 1537 | ix86_function_ok_for_sibcall (tree decl, tree exp) |
4977bab6 ZW |
1538 | { |
1539 | /* If we are generating position-independent code, we cannot sibcall | |
1540 | optimize any indirect call, or a direct call to a global function, | |
1541 | as the PLT requires %ebx be live. */ | |
1542 | if (!TARGET_64BIT && flag_pic && (!decl || TREE_PUBLIC (decl))) | |
1543 | return false; | |
1544 | ||
1545 | /* If we are returning floats on the 80387 register stack, we cannot | |
1546 | make a sibcall from a function that doesn't return a float to a | |
5fbf0217 EB |
1547 | function that does or, conversely, from a function that does return |
1548 | a float to a function that doesn't; the necessary stack adjustment | |
1549 | would not be executed. */ | |
4977bab6 | 1550 | if (STACK_REG_P (ix86_function_value (TREE_TYPE (exp))) |
5fbf0217 | 1551 | != STACK_REG_P (ix86_function_value (TREE_TYPE (DECL_RESULT (cfun->decl))))) |
4977bab6 ZW |
1552 | return false; |
1553 | ||
1554 | /* If this call is indirect, we'll need to be able to use a call-clobbered | |
b96a374d | 1555 | register for the address of the target function. Make sure that all |
4977bab6 ZW |
1556 | such registers are not used for passing parameters. */ |
1557 | if (!decl && !TARGET_64BIT) | |
1558 | { | |
e767b5be | 1559 | tree type; |
4977bab6 ZW |
1560 | |
1561 | /* We're looking at the CALL_EXPR, we need the type of the function. */ | |
1562 | type = TREE_OPERAND (exp, 0); /* pointer expression */ | |
1563 | type = TREE_TYPE (type); /* pointer type */ | |
1564 | type = TREE_TYPE (type); /* function type */ | |
1565 | ||
e767b5be | 1566 | if (ix86_function_regparm (type, NULL) >= 3) |
4977bab6 ZW |
1567 | { |
1568 | /* ??? Need to count the actual number of registers to be used, | |
1569 | not the possible number of registers. Fix later. */ | |
1570 | return false; | |
1571 | } | |
1572 | } | |
1573 | ||
1574 | /* Otherwise okay. That also includes certain types of indirect calls. */ | |
1575 | return true; | |
1576 | } | |
1577 | ||
e91f04de | 1578 | /* Handle a "cdecl", "stdcall", or "fastcall" attribute; |
91d231cb JM |
1579 | arguments as in struct attribute_spec.handler. */ |
1580 | static tree | |
b96a374d AJ |
1581 | ix86_handle_cdecl_attribute (tree *node, tree name, |
1582 | tree args ATTRIBUTE_UNUSED, | |
1583 | int flags ATTRIBUTE_UNUSED, bool *no_add_attrs) | |
91d231cb JM |
1584 | { |
1585 | if (TREE_CODE (*node) != FUNCTION_TYPE | |
1586 | && TREE_CODE (*node) != METHOD_TYPE | |
1587 | && TREE_CODE (*node) != FIELD_DECL | |
1588 | && TREE_CODE (*node) != TYPE_DECL) | |
b08de47e | 1589 | { |
91d231cb JM |
1590 | warning ("`%s' attribute only applies to functions", |
1591 | IDENTIFIER_POINTER (name)); | |
1592 | *no_add_attrs = true; | |
1593 | } | |
e91f04de CH |
1594 | else |
1595 | { | |
1596 | if (is_attribute_p ("fastcall", name)) | |
1597 | { | |
1598 | if (lookup_attribute ("stdcall", TYPE_ATTRIBUTES (*node))) | |
1599 | { | |
1600 | error ("fastcall and stdcall attributes are not compatible"); | |
1601 | } | |
1602 | else if (lookup_attribute ("regparm", TYPE_ATTRIBUTES (*node))) | |
1603 | { | |
1604 | error ("fastcall and regparm attributes are not compatible"); | |
1605 | } | |
1606 | } | |
1607 | else if (is_attribute_p ("stdcall", name)) | |
1608 | { | |
1609 | if (lookup_attribute ("fastcall", TYPE_ATTRIBUTES (*node))) | |
1610 | { | |
1611 | error ("fastcall and stdcall attributes are not compatible"); | |
1612 | } | |
1613 | } | |
1614 | } | |
b08de47e | 1615 | |
91d231cb JM |
1616 | if (TARGET_64BIT) |
1617 | { | |
1618 | warning ("`%s' attribute ignored", IDENTIFIER_POINTER (name)); | |
1619 | *no_add_attrs = true; | |
1620 | } | |
b08de47e | 1621 | |
91d231cb JM |
1622 | return NULL_TREE; |
1623 | } | |
b08de47e | 1624 | |
91d231cb JM |
1625 | /* Handle a "regparm" attribute; |
1626 | arguments as in struct attribute_spec.handler. */ | |
1627 | static tree | |
b96a374d AJ |
1628 | ix86_handle_regparm_attribute (tree *node, tree name, tree args, |
1629 | int flags ATTRIBUTE_UNUSED, bool *no_add_attrs) | |
91d231cb JM |
1630 | { |
1631 | if (TREE_CODE (*node) != FUNCTION_TYPE | |
1632 | && TREE_CODE (*node) != METHOD_TYPE | |
1633 | && TREE_CODE (*node) != FIELD_DECL | |
1634 | && TREE_CODE (*node) != TYPE_DECL) | |
1635 | { | |
1636 | warning ("`%s' attribute only applies to functions", | |
1637 | IDENTIFIER_POINTER (name)); | |
1638 | *no_add_attrs = true; | |
1639 | } | |
1640 | else | |
1641 | { | |
1642 | tree cst; | |
b08de47e | 1643 | |
91d231cb JM |
1644 | cst = TREE_VALUE (args); |
1645 | if (TREE_CODE (cst) != INTEGER_CST) | |
1646 | { | |
1647 | warning ("`%s' attribute requires an integer constant argument", | |
1648 | IDENTIFIER_POINTER (name)); | |
1649 | *no_add_attrs = true; | |
1650 | } | |
1651 | else if (compare_tree_int (cst, REGPARM_MAX) > 0) | |
1652 | { | |
1653 | warning ("argument to `%s' attribute larger than %d", | |
1654 | IDENTIFIER_POINTER (name), REGPARM_MAX); | |
1655 | *no_add_attrs = true; | |
1656 | } | |
e91f04de CH |
1657 | |
1658 | if (lookup_attribute ("fastcall", TYPE_ATTRIBUTES (*node))) | |
e767b5be JH |
1659 | { |
1660 | error ("fastcall and regparm attributes are not compatible"); | |
1661 | } | |
b08de47e MM |
1662 | } |
1663 | ||
91d231cb | 1664 | return NULL_TREE; |
b08de47e MM |
1665 | } |
1666 | ||
1667 | /* Return 0 if the attributes for two types are incompatible, 1 if they | |
1668 | are compatible, and 2 if they are nearly compatible (which causes a | |
1669 | warning to be generated). */ | |
1670 | ||
8d8e52be | 1671 | static int |
b96a374d | 1672 | ix86_comp_type_attributes (tree type1, tree type2) |
b08de47e | 1673 | { |
0f290768 | 1674 | /* Check for mismatch of non-default calling convention. */ |
27c38fbe | 1675 | const char *const rtdstr = TARGET_RTD ? "cdecl" : "stdcall"; |
afcfe58c MM |
1676 | |
1677 | if (TREE_CODE (type1) != FUNCTION_TYPE) | |
1678 | return 1; | |
1679 | ||
b96a374d | 1680 | /* Check for mismatched fastcall types */ |
e91f04de CH |
1681 | if (!lookup_attribute ("fastcall", TYPE_ATTRIBUTES (type1)) |
1682 | != !lookup_attribute ("fastcall", TYPE_ATTRIBUTES (type2))) | |
b96a374d | 1683 | return 0; |
e91f04de | 1684 | |
afcfe58c | 1685 | /* Check for mismatched return types (cdecl vs stdcall). */ |
6093f019 RH |
1686 | if (!lookup_attribute (rtdstr, TYPE_ATTRIBUTES (type1)) |
1687 | != !lookup_attribute (rtdstr, TYPE_ATTRIBUTES (type2))) | |
afcfe58c | 1688 | return 0; |
b08de47e MM |
1689 | return 1; |
1690 | } | |
b08de47e | 1691 | \f |
e767b5be JH |
1692 | /* Return the regparm value for a fuctio with the indicated TYPE and DECL. |
1693 | DECL may be NULL when calling function indirectly | |
839a4992 | 1694 | or considering a libcall. */ |
483ab821 MM |
1695 | |
1696 | static int | |
e767b5be | 1697 | ix86_function_regparm (tree type, tree decl) |
483ab821 MM |
1698 | { |
1699 | tree attr; | |
e767b5be JH |
1700 | int regparm = ix86_regparm; |
1701 | bool user_convention = false; | |
483ab821 | 1702 | |
e767b5be JH |
1703 | if (!TARGET_64BIT) |
1704 | { | |
1705 | attr = lookup_attribute ("regparm", TYPE_ATTRIBUTES (type)); | |
1706 | if (attr) | |
1707 | { | |
1708 | regparm = TREE_INT_CST_LOW (TREE_VALUE (TREE_VALUE (attr))); | |
1709 | user_convention = true; | |
1710 | } | |
1711 | ||
1712 | if (lookup_attribute ("fastcall", TYPE_ATTRIBUTES (type))) | |
1713 | { | |
1714 | regparm = 2; | |
1715 | user_convention = true; | |
1716 | } | |
1717 | ||
1718 | /* Use register calling convention for local functions when possible. */ | |
1719 | if (!TARGET_64BIT && !user_convention && decl | |
cb0bc263 | 1720 | && flag_unit_at_a_time && !profile_flag) |
e767b5be JH |
1721 | { |
1722 | struct cgraph_local_info *i = cgraph_local_info (decl); | |
1723 | if (i && i->local) | |
1724 | { | |
1725 | /* We can't use regparm(3) for nested functions as these use | |
1726 | static chain pointer in third argument. */ | |
1727 | if (DECL_CONTEXT (decl) && !DECL_NO_STATIC_CHAIN (decl)) | |
1728 | regparm = 2; | |
1729 | else | |
1730 | regparm = 3; | |
1731 | } | |
1732 | } | |
1733 | } | |
1734 | return regparm; | |
483ab821 MM |
1735 | } |
1736 | ||
fe9f516f RH |
1737 | /* Return true if EAX is live at the start of the function. Used by |
1738 | ix86_expand_prologue to determine if we need special help before | |
1739 | calling allocate_stack_worker. */ | |
1740 | ||
1741 | static bool | |
1742 | ix86_eax_live_at_start_p (void) | |
1743 | { | |
1744 | /* Cheat. Don't bother working forward from ix86_function_regparm | |
1745 | to the function type to whether an actual argument is located in | |
1746 | eax. Instead just look at cfg info, which is still close enough | |
1747 | to correct at this point. This gives false positives for broken | |
1748 | functions that might use uninitialized data that happens to be | |
1749 | allocated in eax, but who cares? */ | |
1750 | return REGNO_REG_SET_P (ENTRY_BLOCK_PTR->global_live_at_end, 0); | |
1751 | } | |
1752 | ||
b08de47e MM |
1753 | /* Value is the number of bytes of arguments automatically |
1754 | popped when returning from a subroutine call. | |
1755 | FUNDECL is the declaration node of the function (as a tree), | |
1756 | FUNTYPE is the data type of the function (as a tree), | |
1757 | or for a library call it is an identifier node for the subroutine name. | |
1758 | SIZE is the number of bytes of arguments passed on the stack. | |
1759 | ||
1760 | On the 80386, the RTD insn may be used to pop them if the number | |
1761 | of args is fixed, but if the number is variable then the caller | |
1762 | must pop them all. RTD can't be used for library calls now | |
1763 | because the library is compiled with the Unix compiler. | |
1764 | Use of RTD is a selectable option, since it is incompatible with | |
1765 | standard Unix calling sequences. If the option is not selected, | |
1766 | the caller must always pop the args. | |
1767 | ||
1768 | The attribute stdcall is equivalent to RTD on a per module basis. */ | |
1769 | ||
1770 | int | |
b96a374d | 1771 | ix86_return_pops_args (tree fundecl, tree funtype, int size) |
79325812 | 1772 | { |
3345ee7d | 1773 | int rtd = TARGET_RTD && (!fundecl || TREE_CODE (fundecl) != IDENTIFIER_NODE); |
b08de47e | 1774 | |
43f3a59d | 1775 | /* Cdecl functions override -mrtd, and never pop the stack. */ |
e9a25f70 | 1776 | if (! lookup_attribute ("cdecl", TYPE_ATTRIBUTES (funtype))) { |
79325812 | 1777 | |
43f3a59d KH |
1778 | /* Stdcall and fastcall functions will pop the stack if not |
1779 | variable args. */ | |
e91f04de CH |
1780 | if (lookup_attribute ("stdcall", TYPE_ATTRIBUTES (funtype)) |
1781 | || lookup_attribute ("fastcall", TYPE_ATTRIBUTES (funtype))) | |
698cdd84 | 1782 | rtd = 1; |
79325812 | 1783 | |
698cdd84 SC |
1784 | if (rtd |
1785 | && (TYPE_ARG_TYPES (funtype) == NULL_TREE | |
e9a25f70 JL |
1786 | || (TREE_VALUE (tree_last (TYPE_ARG_TYPES (funtype))) |
1787 | == void_type_node))) | |
698cdd84 SC |
1788 | return size; |
1789 | } | |
79325812 | 1790 | |
232b8f52 | 1791 | /* Lose any fake structure return argument if it is passed on the stack. */ |
61f71b34 | 1792 | if (aggregate_value_p (TREE_TYPE (funtype), fundecl) |
0d7d98ee | 1793 | && !TARGET_64BIT) |
232b8f52 | 1794 | { |
e767b5be | 1795 | int nregs = ix86_function_regparm (funtype, fundecl); |
232b8f52 JJ |
1796 | |
1797 | if (!nregs) | |
1798 | return GET_MODE_SIZE (Pmode); | |
1799 | } | |
1800 | ||
1801 | return 0; | |
b08de47e | 1802 | } |
b08de47e MM |
1803 | \f |
1804 | /* Argument support functions. */ | |
1805 | ||
53c17031 JH |
1806 | /* Return true when register may be used to pass function parameters. */ |
1807 | bool | |
b96a374d | 1808 | ix86_function_arg_regno_p (int regno) |
53c17031 JH |
1809 | { |
1810 | int i; | |
1811 | if (!TARGET_64BIT) | |
0333394e JJ |
1812 | return (regno < REGPARM_MAX |
1813 | || (TARGET_SSE && SSE_REGNO_P (regno) && !fixed_regs[regno])); | |
53c17031 JH |
1814 | if (SSE_REGNO_P (regno) && TARGET_SSE) |
1815 | return true; | |
1816 | /* RAX is used as hidden argument to va_arg functions. */ | |
1817 | if (!regno) | |
1818 | return true; | |
1819 | for (i = 0; i < REGPARM_MAX; i++) | |
1820 | if (regno == x86_64_int_parameter_registers[i]) | |
1821 | return true; | |
1822 | return false; | |
1823 | } | |
1824 | ||
b08de47e MM |
1825 | /* Initialize a variable CUM of type CUMULATIVE_ARGS |
1826 | for a call to a function whose data type is FNTYPE. | |
1827 | For a library call, FNTYPE is 0. */ | |
1828 | ||
1829 | void | |
b96a374d AJ |
1830 | init_cumulative_args (CUMULATIVE_ARGS *cum, /* Argument info to initialize */ |
1831 | tree fntype, /* tree ptr for function decl */ | |
1832 | rtx libname, /* SYMBOL_REF of library name or 0 */ | |
1833 | tree fndecl) | |
b08de47e MM |
1834 | { |
1835 | static CUMULATIVE_ARGS zero_cum; | |
1836 | tree param, next_param; | |
1837 | ||
1838 | if (TARGET_DEBUG_ARG) | |
1839 | { | |
1840 | fprintf (stderr, "\ninit_cumulative_args ("); | |
1841 | if (fntype) | |
e9a25f70 JL |
1842 | fprintf (stderr, "fntype code = %s, ret code = %s", |
1843 | tree_code_name[(int) TREE_CODE (fntype)], | |
1844 | tree_code_name[(int) TREE_CODE (TREE_TYPE (fntype))]); | |
b08de47e MM |
1845 | else |
1846 | fprintf (stderr, "no fntype"); | |
1847 | ||
1848 | if (libname) | |
1849 | fprintf (stderr, ", libname = %s", XSTR (libname, 0)); | |
1850 | } | |
1851 | ||
1852 | *cum = zero_cum; | |
1853 | ||
1854 | /* Set up the number of registers to use for passing arguments. */ | |
e767b5be JH |
1855 | if (fntype) |
1856 | cum->nregs = ix86_function_regparm (fntype, fndecl); | |
1857 | else | |
1858 | cum->nregs = ix86_regparm; | |
53c17031 | 1859 | cum->sse_nregs = SSE_REGPARM_MAX; |
bcf17554 | 1860 | cum->mmx_nregs = MMX_REGPARM_MAX; |
e1be55d0 JH |
1861 | cum->warn_sse = true; |
1862 | cum->warn_mmx = true; | |
53c17031 | 1863 | cum->maybe_vaarg = false; |
b08de47e | 1864 | |
e91f04de CH |
1865 | /* Use ecx and edx registers if function has fastcall attribute */ |
1866 | if (fntype && !TARGET_64BIT) | |
1867 | { | |
1868 | if (lookup_attribute ("fastcall", TYPE_ATTRIBUTES (fntype))) | |
1869 | { | |
1870 | cum->nregs = 2; | |
1871 | cum->fastcall = 1; | |
1872 | } | |
1873 | } | |
1874 | ||
1875 | ||
b08de47e MM |
1876 | /* Determine if this function has variable arguments. This is |
1877 | indicated by the last argument being 'void_type_mode' if there | |
1878 | are no variable arguments. If there are variable arguments, then | |
1879 | we won't pass anything in registers */ | |
1880 | ||
e1be55d0 | 1881 | if (cum->nregs || !TARGET_MMX || !TARGET_SSE) |
b08de47e MM |
1882 | { |
1883 | for (param = (fntype) ? TYPE_ARG_TYPES (fntype) : 0; | |
e9a25f70 | 1884 | param != 0; param = next_param) |
b08de47e MM |
1885 | { |
1886 | next_param = TREE_CHAIN (param); | |
e9a25f70 | 1887 | if (next_param == 0 && TREE_VALUE (param) != void_type_node) |
53c17031 JH |
1888 | { |
1889 | if (!TARGET_64BIT) | |
e91f04de CH |
1890 | { |
1891 | cum->nregs = 0; | |
e1be55d0 JH |
1892 | cum->sse_nregs = 0; |
1893 | cum->mmx_nregs = 0; | |
1894 | cum->warn_sse = 0; | |
1895 | cum->warn_mmx = 0; | |
e91f04de CH |
1896 | cum->fastcall = 0; |
1897 | } | |
53c17031 JH |
1898 | cum->maybe_vaarg = true; |
1899 | } | |
b08de47e MM |
1900 | } |
1901 | } | |
53c17031 JH |
1902 | if ((!fntype && !libname) |
1903 | || (fntype && !TYPE_ARG_TYPES (fntype))) | |
1904 | cum->maybe_vaarg = 1; | |
b08de47e MM |
1905 | |
1906 | if (TARGET_DEBUG_ARG) | |
1907 | fprintf (stderr, ", nregs=%d )\n", cum->nregs); | |
1908 | ||
1909 | return; | |
1910 | } | |
1911 | ||
d1f87653 | 1912 | /* x86-64 register passing implementation. See x86-64 ABI for details. Goal |
f710504c | 1913 | of this code is to classify each 8bytes of incoming argument by the register |
53c17031 JH |
1914 | class and assign registers accordingly. */ |
1915 | ||
1916 | /* Return the union class of CLASS1 and CLASS2. | |
1917 | See the x86-64 PS ABI for details. */ | |
1918 | ||
1919 | static enum x86_64_reg_class | |
b96a374d | 1920 | merge_classes (enum x86_64_reg_class class1, enum x86_64_reg_class class2) |
53c17031 JH |
1921 | { |
1922 | /* Rule #1: If both classes are equal, this is the resulting class. */ | |
1923 | if (class1 == class2) | |
1924 | return class1; | |
1925 | ||
1926 | /* Rule #2: If one of the classes is NO_CLASS, the resulting class is | |
1927 | the other class. */ | |
1928 | if (class1 == X86_64_NO_CLASS) | |
1929 | return class2; | |
1930 | if (class2 == X86_64_NO_CLASS) | |
1931 | return class1; | |
1932 | ||
1933 | /* Rule #3: If one of the classes is MEMORY, the result is MEMORY. */ | |
1934 | if (class1 == X86_64_MEMORY_CLASS || class2 == X86_64_MEMORY_CLASS) | |
1935 | return X86_64_MEMORY_CLASS; | |
1936 | ||
1937 | /* Rule #4: If one of the classes is INTEGER, the result is INTEGER. */ | |
1938 | if ((class1 == X86_64_INTEGERSI_CLASS && class2 == X86_64_SSESF_CLASS) | |
1939 | || (class2 == X86_64_INTEGERSI_CLASS && class1 == X86_64_SSESF_CLASS)) | |
1940 | return X86_64_INTEGERSI_CLASS; | |
1941 | if (class1 == X86_64_INTEGER_CLASS || class1 == X86_64_INTEGERSI_CLASS | |
1942 | || class2 == X86_64_INTEGER_CLASS || class2 == X86_64_INTEGERSI_CLASS) | |
1943 | return X86_64_INTEGER_CLASS; | |
1944 | ||
1945 | /* Rule #5: If one of the classes is X87 or X87UP class, MEMORY is used. */ | |
1946 | if (class1 == X86_64_X87_CLASS || class1 == X86_64_X87UP_CLASS | |
1947 | || class2 == X86_64_X87_CLASS || class2 == X86_64_X87UP_CLASS) | |
1948 | return X86_64_MEMORY_CLASS; | |
1949 | ||
1950 | /* Rule #6: Otherwise class SSE is used. */ | |
1951 | return X86_64_SSE_CLASS; | |
1952 | } | |
1953 | ||
1954 | /* Classify the argument of type TYPE and mode MODE. | |
1955 | CLASSES will be filled by the register class used to pass each word | |
1956 | of the operand. The number of words is returned. In case the parameter | |
1957 | should be passed in memory, 0 is returned. As a special case for zero | |
1958 | sized containers, classes[0] will be NO_CLASS and 1 is returned. | |
1959 | ||
1960 | BIT_OFFSET is used internally for handling records and specifies offset | |
1961 | of the offset in bits modulo 256 to avoid overflow cases. | |
1962 | ||
1963 | See the x86-64 PS ABI for details. | |
1964 | */ | |
1965 | ||
1966 | static int | |
b96a374d AJ |
1967 | classify_argument (enum machine_mode mode, tree type, |
1968 | enum x86_64_reg_class classes[MAX_CLASSES], int bit_offset) | |
53c17031 | 1969 | { |
296e4ae8 | 1970 | HOST_WIDE_INT bytes = |
53c17031 | 1971 | (mode == BLKmode) ? int_size_in_bytes (type) : (int) GET_MODE_SIZE (mode); |
23327dae | 1972 | int words = (bytes + (bit_offset % 64) / 8 + UNITS_PER_WORD - 1) / UNITS_PER_WORD; |
53c17031 | 1973 | |
c60ee6f5 JH |
1974 | /* Variable sized entities are always passed/returned in memory. */ |
1975 | if (bytes < 0) | |
1976 | return 0; | |
1977 | ||
dafc5b82 JH |
1978 | if (mode != VOIDmode |
1979 | && MUST_PASS_IN_STACK (mode, type)) | |
1980 | return 0; | |
1981 | ||
53c17031 JH |
1982 | if (type && AGGREGATE_TYPE_P (type)) |
1983 | { | |
1984 | int i; | |
1985 | tree field; | |
1986 | enum x86_64_reg_class subclasses[MAX_CLASSES]; | |
1987 | ||
1988 | /* On x86-64 we pass structures larger than 16 bytes on the stack. */ | |
1989 | if (bytes > 16) | |
1990 | return 0; | |
1991 | ||
1992 | for (i = 0; i < words; i++) | |
1993 | classes[i] = X86_64_NO_CLASS; | |
1994 | ||
1995 | /* Zero sized arrays or structures are NO_CLASS. We return 0 to | |
1996 | signalize memory class, so handle it as special case. */ | |
1997 | if (!words) | |
1998 | { | |
1999 | classes[0] = X86_64_NO_CLASS; | |
2000 | return 1; | |
2001 | } | |
2002 | ||
2003 | /* Classify each field of record and merge classes. */ | |
2004 | if (TREE_CODE (type) == RECORD_TYPE) | |
2005 | { | |
91ea38f9 JH |
2006 | /* For classes first merge in the field of the subclasses. */ |
2007 | if (TYPE_BINFO (type) != NULL && TYPE_BINFO_BASETYPES (type) != NULL) | |
2008 | { | |
2009 | tree bases = TYPE_BINFO_BASETYPES (type); | |
2010 | int n_bases = TREE_VEC_LENGTH (bases); | |
2011 | int i; | |
2012 | ||
2013 | for (i = 0; i < n_bases; ++i) | |
2014 | { | |
2015 | tree binfo = TREE_VEC_ELT (bases, i); | |
2016 | int num; | |
2017 | int offset = tree_low_cst (BINFO_OFFSET (binfo), 0) * 8; | |
2018 | tree type = BINFO_TYPE (binfo); | |
2019 | ||
2020 | num = classify_argument (TYPE_MODE (type), | |
2021 | type, subclasses, | |
2022 | (offset + bit_offset) % 256); | |
2023 | if (!num) | |
2024 | return 0; | |
2025 | for (i = 0; i < num; i++) | |
2026 | { | |
db01f480 | 2027 | int pos = (offset + (bit_offset % 64)) / 8 / 8; |
91ea38f9 JH |
2028 | classes[i + pos] = |
2029 | merge_classes (subclasses[i], classes[i + pos]); | |
2030 | } | |
2031 | } | |
2032 | } | |
43f3a59d | 2033 | /* And now merge the fields of structure. */ |
53c17031 JH |
2034 | for (field = TYPE_FIELDS (type); field; field = TREE_CHAIN (field)) |
2035 | { | |
2036 | if (TREE_CODE (field) == FIELD_DECL) | |
2037 | { | |
2038 | int num; | |
2039 | ||
2040 | /* Bitfields are always classified as integer. Handle them | |
2041 | early, since later code would consider them to be | |
2042 | misaligned integers. */ | |
2043 | if (DECL_BIT_FIELD (field)) | |
2044 | { | |
2045 | for (i = int_bit_position (field) / 8 / 8; | |
2046 | i < (int_bit_position (field) | |
2047 | + tree_low_cst (DECL_SIZE (field), 0) | |
b96a374d | 2048 | + 63) / 8 / 8; i++) |
53c17031 JH |
2049 | classes[i] = |
2050 | merge_classes (X86_64_INTEGER_CLASS, | |
2051 | classes[i]); | |
2052 | } | |
2053 | else | |
2054 | { | |
2055 | num = classify_argument (TYPE_MODE (TREE_TYPE (field)), | |
2056 | TREE_TYPE (field), subclasses, | |
2057 | (int_bit_position (field) | |
2058 | + bit_offset) % 256); | |
2059 | if (!num) | |
2060 | return 0; | |
2061 | for (i = 0; i < num; i++) | |
2062 | { | |
2063 | int pos = | |
db01f480 | 2064 | (int_bit_position (field) + (bit_offset % 64)) / 8 / 8; |
53c17031 JH |
2065 | classes[i + pos] = |
2066 | merge_classes (subclasses[i], classes[i + pos]); | |
2067 | } | |
2068 | } | |
2069 | } | |
2070 | } | |
2071 | } | |
2072 | /* Arrays are handled as small records. */ | |
2073 | else if (TREE_CODE (type) == ARRAY_TYPE) | |
2074 | { | |
2075 | int num; | |
2076 | num = classify_argument (TYPE_MODE (TREE_TYPE (type)), | |
2077 | TREE_TYPE (type), subclasses, bit_offset); | |
2078 | if (!num) | |
2079 | return 0; | |
2080 | ||
2081 | /* The partial classes are now full classes. */ | |
2082 | if (subclasses[0] == X86_64_SSESF_CLASS && bytes != 4) | |
2083 | subclasses[0] = X86_64_SSE_CLASS; | |
2084 | if (subclasses[0] == X86_64_INTEGERSI_CLASS && bytes != 4) | |
2085 | subclasses[0] = X86_64_INTEGER_CLASS; | |
2086 | ||
2087 | for (i = 0; i < words; i++) | |
2088 | classes[i] = subclasses[i % num]; | |
2089 | } | |
2090 | /* Unions are similar to RECORD_TYPE but offset is always 0. */ | |
e4dbaed5 AS |
2091 | else if (TREE_CODE (type) == UNION_TYPE |
2092 | || TREE_CODE (type) == QUAL_UNION_TYPE) | |
53c17031 | 2093 | { |
91ea38f9 JH |
2094 | /* For classes first merge in the field of the subclasses. */ |
2095 | if (TYPE_BINFO (type) != NULL && TYPE_BINFO_BASETYPES (type) != NULL) | |
2096 | { | |
2097 | tree bases = TYPE_BINFO_BASETYPES (type); | |
2098 | int n_bases = TREE_VEC_LENGTH (bases); | |
2099 | int i; | |
2100 | ||
2101 | for (i = 0; i < n_bases; ++i) | |
2102 | { | |
2103 | tree binfo = TREE_VEC_ELT (bases, i); | |
2104 | int num; | |
2105 | int offset = tree_low_cst (BINFO_OFFSET (binfo), 0) * 8; | |
2106 | tree type = BINFO_TYPE (binfo); | |
2107 | ||
2108 | num = classify_argument (TYPE_MODE (type), | |
2109 | type, subclasses, | |
db01f480 | 2110 | (offset + (bit_offset % 64)) % 256); |
91ea38f9 JH |
2111 | if (!num) |
2112 | return 0; | |
2113 | for (i = 0; i < num; i++) | |
2114 | { | |
c16576e6 | 2115 | int pos = (offset + (bit_offset % 64)) / 8 / 8; |
91ea38f9 JH |
2116 | classes[i + pos] = |
2117 | merge_classes (subclasses[i], classes[i + pos]); | |
2118 | } | |
2119 | } | |
2120 | } | |
53c17031 JH |
2121 | for (field = TYPE_FIELDS (type); field; field = TREE_CHAIN (field)) |
2122 | { | |
2123 | if (TREE_CODE (field) == FIELD_DECL) | |
2124 | { | |
2125 | int num; | |
2126 | num = classify_argument (TYPE_MODE (TREE_TYPE (field)), | |
2127 | TREE_TYPE (field), subclasses, | |
2128 | bit_offset); | |
2129 | if (!num) | |
2130 | return 0; | |
2131 | for (i = 0; i < num; i++) | |
2132 | classes[i] = merge_classes (subclasses[i], classes[i]); | |
2133 | } | |
2134 | } | |
2135 | } | |
448ec26c WH |
2136 | else if (TREE_CODE (type) == SET_TYPE) |
2137 | { | |
2138 | if (bytes <= 4) | |
2139 | { | |
2140 | classes[0] = X86_64_INTEGERSI_CLASS; | |
2141 | return 1; | |
2142 | } | |
2143 | else if (bytes <= 8) | |
2144 | { | |
2145 | classes[0] = X86_64_INTEGER_CLASS; | |
2146 | return 1; | |
2147 | } | |
2148 | else if (bytes <= 12) | |
2149 | { | |
2150 | classes[0] = X86_64_INTEGER_CLASS; | |
2151 | classes[1] = X86_64_INTEGERSI_CLASS; | |
2152 | return 2; | |
2153 | } | |
2154 | else | |
2155 | { | |
2156 | classes[0] = X86_64_INTEGER_CLASS; | |
2157 | classes[1] = X86_64_INTEGER_CLASS; | |
2158 | return 2; | |
2159 | } | |
2160 | } | |
53c17031 JH |
2161 | else |
2162 | abort (); | |
2163 | ||
2164 | /* Final merger cleanup. */ | |
2165 | for (i = 0; i < words; i++) | |
2166 | { | |
2167 | /* If one class is MEMORY, everything should be passed in | |
2168 | memory. */ | |
2169 | if (classes[i] == X86_64_MEMORY_CLASS) | |
2170 | return 0; | |
2171 | ||
d6a7951f | 2172 | /* The X86_64_SSEUP_CLASS should be always preceded by |
53c17031 JH |
2173 | X86_64_SSE_CLASS. */ |
2174 | if (classes[i] == X86_64_SSEUP_CLASS | |
2175 | && (i == 0 || classes[i - 1] != X86_64_SSE_CLASS)) | |
2176 | classes[i] = X86_64_SSE_CLASS; | |
2177 | ||
d6a7951f | 2178 | /* X86_64_X87UP_CLASS should be preceded by X86_64_X87_CLASS. */ |
53c17031 JH |
2179 | if (classes[i] == X86_64_X87UP_CLASS |
2180 | && (i == 0 || classes[i - 1] != X86_64_X87_CLASS)) | |
2181 | classes[i] = X86_64_SSE_CLASS; | |
2182 | } | |
2183 | return words; | |
2184 | } | |
2185 | ||
2186 | /* Compute alignment needed. We align all types to natural boundaries with | |
2187 | exception of XFmode that is aligned to 64bits. */ | |
2188 | if (mode != VOIDmode && mode != BLKmode) | |
2189 | { | |
2190 | int mode_alignment = GET_MODE_BITSIZE (mode); | |
2191 | ||
2192 | if (mode == XFmode) | |
2193 | mode_alignment = 128; | |
2194 | else if (mode == XCmode) | |
2195 | mode_alignment = 256; | |
f5143c46 | 2196 | /* Misaligned fields are always returned in memory. */ |
53c17031 JH |
2197 | if (bit_offset % mode_alignment) |
2198 | return 0; | |
2199 | } | |
2200 | ||
2201 | /* Classification of atomic types. */ | |
2202 | switch (mode) | |
2203 | { | |
2204 | case DImode: | |
2205 | case SImode: | |
2206 | case HImode: | |
2207 | case QImode: | |
2208 | case CSImode: | |
2209 | case CHImode: | |
2210 | case CQImode: | |
2211 | if (bit_offset + GET_MODE_BITSIZE (mode) <= 32) | |
2212 | classes[0] = X86_64_INTEGERSI_CLASS; | |
2213 | else | |
2214 | classes[0] = X86_64_INTEGER_CLASS; | |
2215 | return 1; | |
2216 | case CDImode: | |
2217 | case TImode: | |
2218 | classes[0] = classes[1] = X86_64_INTEGER_CLASS; | |
2219 | return 2; | |
2220 | case CTImode: | |
2221 | classes[0] = classes[1] = X86_64_INTEGER_CLASS; | |
2222 | classes[2] = classes[3] = X86_64_INTEGER_CLASS; | |
2223 | return 4; | |
2224 | case SFmode: | |
2225 | if (!(bit_offset % 64)) | |
2226 | classes[0] = X86_64_SSESF_CLASS; | |
2227 | else | |
2228 | classes[0] = X86_64_SSE_CLASS; | |
2229 | return 1; | |
2230 | case DFmode: | |
2231 | classes[0] = X86_64_SSEDF_CLASS; | |
2232 | return 1; | |
f8a1ebc6 | 2233 | case XFmode: |
53c17031 JH |
2234 | classes[0] = X86_64_X87_CLASS; |
2235 | classes[1] = X86_64_X87UP_CLASS; | |
2236 | return 2; | |
f8a1ebc6 | 2237 | case TFmode: |
cf2348cb JH |
2238 | case TCmode: |
2239 | return 0; | |
f8a1ebc6 | 2240 | case XCmode: |
53c17031 JH |
2241 | classes[0] = X86_64_X87_CLASS; |
2242 | classes[1] = X86_64_X87UP_CLASS; | |
2243 | classes[2] = X86_64_X87_CLASS; | |
2244 | classes[3] = X86_64_X87UP_CLASS; | |
2245 | return 4; | |
2246 | case DCmode: | |
2247 | classes[0] = X86_64_SSEDF_CLASS; | |
2248 | classes[1] = X86_64_SSEDF_CLASS; | |
2249 | return 2; | |
2250 | case SCmode: | |
2251 | classes[0] = X86_64_SSE_CLASS; | |
2252 | return 1; | |
e95d6b23 JH |
2253 | case V4SFmode: |
2254 | case V4SImode: | |
495333a6 JH |
2255 | case V16QImode: |
2256 | case V8HImode: | |
2257 | case V2DFmode: | |
2258 | case V2DImode: | |
e95d6b23 JH |
2259 | classes[0] = X86_64_SSE_CLASS; |
2260 | classes[1] = X86_64_SSEUP_CLASS; | |
2261 | return 2; | |
2262 | case V2SFmode: | |
2263 | case V2SImode: | |
2264 | case V4HImode: | |
2265 | case V8QImode: | |
1194ca05 | 2266 | return 0; |
53c17031 | 2267 | case BLKmode: |
e95d6b23 | 2268 | case VOIDmode: |
53c17031 JH |
2269 | return 0; |
2270 | default: | |
2271 | abort (); | |
2272 | } | |
2273 | } | |
2274 | ||
2275 | /* Examine the argument and return set number of register required in each | |
f5143c46 | 2276 | class. Return 0 iff parameter should be passed in memory. */ |
53c17031 | 2277 | static int |
b96a374d AJ |
2278 | examine_argument (enum machine_mode mode, tree type, int in_return, |
2279 | int *int_nregs, int *sse_nregs) | |
53c17031 JH |
2280 | { |
2281 | enum x86_64_reg_class class[MAX_CLASSES]; | |
2282 | int n = classify_argument (mode, type, class, 0); | |
2283 | ||
2284 | *int_nregs = 0; | |
2285 | *sse_nregs = 0; | |
2286 | if (!n) | |
2287 | return 0; | |
2288 | for (n--; n >= 0; n--) | |
2289 | switch (class[n]) | |
2290 | { | |
2291 | case X86_64_INTEGER_CLASS: | |
2292 | case X86_64_INTEGERSI_CLASS: | |
2293 | (*int_nregs)++; | |
2294 | break; | |
2295 | case X86_64_SSE_CLASS: | |
2296 | case X86_64_SSESF_CLASS: | |
2297 | case X86_64_SSEDF_CLASS: | |
2298 | (*sse_nregs)++; | |
2299 | break; | |
2300 | case X86_64_NO_CLASS: | |
2301 | case X86_64_SSEUP_CLASS: | |
2302 | break; | |
2303 | case X86_64_X87_CLASS: | |
2304 | case X86_64_X87UP_CLASS: | |
2305 | if (!in_return) | |
2306 | return 0; | |
2307 | break; | |
2308 | case X86_64_MEMORY_CLASS: | |
2309 | abort (); | |
2310 | } | |
2311 | return 1; | |
2312 | } | |
2313 | /* Construct container for the argument used by GCC interface. See | |
2314 | FUNCTION_ARG for the detailed description. */ | |
2315 | static rtx | |
b96a374d AJ |
2316 | construct_container (enum machine_mode mode, tree type, int in_return, |
2317 | int nintregs, int nsseregs, const int * intreg, | |
2318 | int sse_regno) | |
53c17031 JH |
2319 | { |
2320 | enum machine_mode tmpmode; | |
2321 | int bytes = | |
2322 | (mode == BLKmode) ? int_size_in_bytes (type) : (int) GET_MODE_SIZE (mode); | |
2323 | enum x86_64_reg_class class[MAX_CLASSES]; | |
2324 | int n; | |
2325 | int i; | |
2326 | int nexps = 0; | |
2327 | int needed_sseregs, needed_intregs; | |
2328 | rtx exp[MAX_CLASSES]; | |
2329 | rtx ret; | |
2330 | ||
2331 | n = classify_argument (mode, type, class, 0); | |
2332 | if (TARGET_DEBUG_ARG) | |
2333 | { | |
2334 | if (!n) | |
2335 | fprintf (stderr, "Memory class\n"); | |
2336 | else | |
2337 | { | |
2338 | fprintf (stderr, "Classes:"); | |
2339 | for (i = 0; i < n; i++) | |
2340 | { | |
2341 | fprintf (stderr, " %s", x86_64_reg_class_name[class[i]]); | |
2342 | } | |
2343 | fprintf (stderr, "\n"); | |
2344 | } | |
2345 | } | |
2346 | if (!n) | |
2347 | return NULL; | |
2348 | if (!examine_argument (mode, type, in_return, &needed_intregs, &needed_sseregs)) | |
2349 | return NULL; | |
2350 | if (needed_intregs > nintregs || needed_sseregs > nsseregs) | |
2351 | return NULL; | |
2352 | ||
2353 | /* First construct simple cases. Avoid SCmode, since we want to use | |
2354 | single register to pass this type. */ | |
2355 | if (n == 1 && mode != SCmode) | |
2356 | switch (class[0]) | |
2357 | { | |
2358 | case X86_64_INTEGER_CLASS: | |
2359 | case X86_64_INTEGERSI_CLASS: | |
2360 | return gen_rtx_REG (mode, intreg[0]); | |
2361 | case X86_64_SSE_CLASS: | |
2362 | case X86_64_SSESF_CLASS: | |
2363 | case X86_64_SSEDF_CLASS: | |
2364 | return gen_rtx_REG (mode, SSE_REGNO (sse_regno)); | |
2365 | case X86_64_X87_CLASS: | |
2366 | return gen_rtx_REG (mode, FIRST_STACK_REG); | |
2367 | case X86_64_NO_CLASS: | |
2368 | /* Zero sized array, struct or class. */ | |
2369 | return NULL; | |
2370 | default: | |
2371 | abort (); | |
2372 | } | |
2373 | if (n == 2 && class[0] == X86_64_SSE_CLASS && class[1] == X86_64_SSEUP_CLASS) | |
e95d6b23 | 2374 | return gen_rtx_REG (mode, SSE_REGNO (sse_regno)); |
53c17031 JH |
2375 | if (n == 2 |
2376 | && class[0] == X86_64_X87_CLASS && class[1] == X86_64_X87UP_CLASS) | |
f8a1ebc6 | 2377 | return gen_rtx_REG (XFmode, FIRST_STACK_REG); |
53c17031 JH |
2378 | if (n == 2 && class[0] == X86_64_INTEGER_CLASS |
2379 | && class[1] == X86_64_INTEGER_CLASS | |
f8a1ebc6 | 2380 | && (mode == CDImode || mode == TImode || mode == TFmode) |
53c17031 JH |
2381 | && intreg[0] + 1 == intreg[1]) |
2382 | return gen_rtx_REG (mode, intreg[0]); | |
2383 | if (n == 4 | |
2384 | && class[0] == X86_64_X87_CLASS && class[1] == X86_64_X87UP_CLASS | |
2385 | && class[2] == X86_64_X87_CLASS && class[3] == X86_64_X87UP_CLASS) | |
f8a1ebc6 | 2386 | return gen_rtx_REG (XCmode, FIRST_STACK_REG); |
53c17031 JH |
2387 | |
2388 | /* Otherwise figure out the entries of the PARALLEL. */ | |
2389 | for (i = 0; i < n; i++) | |
2390 | { | |
2391 | switch (class[i]) | |
2392 | { | |
2393 | case X86_64_NO_CLASS: | |
2394 | break; | |
2395 | case X86_64_INTEGER_CLASS: | |
2396 | case X86_64_INTEGERSI_CLASS: | |
d1f87653 | 2397 | /* Merge TImodes on aligned occasions here too. */ |
53c17031 JH |
2398 | if (i * 8 + 8 > bytes) |
2399 | tmpmode = mode_for_size ((bytes - i * 8) * BITS_PER_UNIT, MODE_INT, 0); | |
2400 | else if (class[i] == X86_64_INTEGERSI_CLASS) | |
2401 | tmpmode = SImode; | |
2402 | else | |
2403 | tmpmode = DImode; | |
2404 | /* We've requested 24 bytes we don't have mode for. Use DImode. */ | |
2405 | if (tmpmode == BLKmode) | |
2406 | tmpmode = DImode; | |
2407 | exp [nexps++] = gen_rtx_EXPR_LIST (VOIDmode, | |
2408 | gen_rtx_REG (tmpmode, *intreg), | |
2409 | GEN_INT (i*8)); | |
2410 | intreg++; | |
2411 | break; | |
2412 | case X86_64_SSESF_CLASS: | |
2413 | exp [nexps++] = gen_rtx_EXPR_LIST (VOIDmode, | |
2414 | gen_rtx_REG (SFmode, | |
2415 | SSE_REGNO (sse_regno)), | |
2416 | GEN_INT (i*8)); | |
2417 | sse_regno++; | |
2418 | break; | |
2419 | case X86_64_SSEDF_CLASS: | |
2420 | exp [nexps++] = gen_rtx_EXPR_LIST (VOIDmode, | |
2421 | gen_rtx_REG (DFmode, | |
2422 | SSE_REGNO (sse_regno)), | |
2423 | GEN_INT (i*8)); | |
2424 | sse_regno++; | |
2425 | break; | |
2426 | case X86_64_SSE_CLASS: | |
12f5c45e JH |
2427 | if (i < n - 1 && class[i + 1] == X86_64_SSEUP_CLASS) |
2428 | tmpmode = TImode; | |
53c17031 JH |
2429 | else |
2430 | tmpmode = DImode; | |
2431 | exp [nexps++] = gen_rtx_EXPR_LIST (VOIDmode, | |
2432 | gen_rtx_REG (tmpmode, | |
2433 | SSE_REGNO (sse_regno)), | |
2434 | GEN_INT (i*8)); | |
12f5c45e JH |
2435 | if (tmpmode == TImode) |
2436 | i++; | |
53c17031 JH |
2437 | sse_regno++; |
2438 | break; | |
2439 | default: | |
2440 | abort (); | |
2441 | } | |
2442 | } | |
2443 | ret = gen_rtx_PARALLEL (mode, rtvec_alloc (nexps)); | |
2444 | for (i = 0; i < nexps; i++) | |
2445 | XVECEXP (ret, 0, i) = exp [i]; | |
2446 | return ret; | |
2447 | } | |
2448 | ||
b08de47e MM |
2449 | /* Update the data in CUM to advance over an argument |
2450 | of mode MODE and data type TYPE. | |
2451 | (TYPE is null for libcalls where that information may not be available.) */ | |
2452 | ||
2453 | void | |
b96a374d AJ |
2454 | function_arg_advance (CUMULATIVE_ARGS *cum, /* current arg information */ |
2455 | enum machine_mode mode, /* current arg mode */ | |
2456 | tree type, /* type of the argument or 0 if lib support */ | |
2457 | int named) /* whether or not the argument was named */ | |
b08de47e | 2458 | { |
5ac9118e KG |
2459 | int bytes = |
2460 | (mode == BLKmode) ? int_size_in_bytes (type) : (int) GET_MODE_SIZE (mode); | |
b08de47e MM |
2461 | int words = (bytes + UNITS_PER_WORD - 1) / UNITS_PER_WORD; |
2462 | ||
2463 | if (TARGET_DEBUG_ARG) | |
2464 | fprintf (stderr, | |
bcf17554 JH |
2465 | "function_adv (sz=%d, wds=%2d, nregs=%d, ssenregs=%d, mode=%s, named=%d)\n\n", |
2466 | words, cum->words, cum->nregs, cum->sse_nregs, GET_MODE_NAME (mode), named); | |
53c17031 | 2467 | if (TARGET_64BIT) |
b08de47e | 2468 | { |
53c17031 JH |
2469 | int int_nregs, sse_nregs; |
2470 | if (!examine_argument (mode, type, 0, &int_nregs, &sse_nregs)) | |
2471 | cum->words += words; | |
2472 | else if (sse_nregs <= cum->sse_nregs && int_nregs <= cum->nregs) | |
82a127a9 | 2473 | { |
53c17031 JH |
2474 | cum->nregs -= int_nregs; |
2475 | cum->sse_nregs -= sse_nregs; | |
2476 | cum->regno += int_nregs; | |
2477 | cum->sse_regno += sse_nregs; | |
82a127a9 | 2478 | } |
53c17031 JH |
2479 | else |
2480 | cum->words += words; | |
b08de47e | 2481 | } |
a4f31c00 | 2482 | else |
82a127a9 | 2483 | { |
bcf17554 JH |
2484 | if (TARGET_SSE && SSE_REG_MODE_P (mode) |
2485 | && (!type || !AGGREGATE_TYPE_P (type))) | |
53c17031 JH |
2486 | { |
2487 | cum->sse_words += words; | |
2488 | cum->sse_nregs -= 1; | |
2489 | cum->sse_regno += 1; | |
2490 | if (cum->sse_nregs <= 0) | |
2491 | { | |
2492 | cum->sse_nregs = 0; | |
2493 | cum->sse_regno = 0; | |
2494 | } | |
2495 | } | |
bcf17554 JH |
2496 | else if (TARGET_MMX && MMX_REG_MODE_P (mode) |
2497 | && (!type || !AGGREGATE_TYPE_P (type))) | |
2498 | { | |
2499 | cum->mmx_words += words; | |
2500 | cum->mmx_nregs -= 1; | |
2501 | cum->mmx_regno += 1; | |
2502 | if (cum->mmx_nregs <= 0) | |
2503 | { | |
2504 | cum->mmx_nregs = 0; | |
2505 | cum->mmx_regno = 0; | |
2506 | } | |
2507 | } | |
53c17031 | 2508 | else |
82a127a9 | 2509 | { |
53c17031 JH |
2510 | cum->words += words; |
2511 | cum->nregs -= words; | |
2512 | cum->regno += words; | |
2513 | ||
2514 | if (cum->nregs <= 0) | |
2515 | { | |
2516 | cum->nregs = 0; | |
2517 | cum->regno = 0; | |
2518 | } | |
82a127a9 CM |
2519 | } |
2520 | } | |
b08de47e MM |
2521 | return; |
2522 | } | |
2523 | ||
2524 | /* Define where to put the arguments to a function. | |
2525 | Value is zero to push the argument on the stack, | |
2526 | or a hard register in which to store the argument. | |
2527 | ||
2528 | MODE is the argument's machine mode. | |
2529 | TYPE is the data type of the argument (as a tree). | |
2530 | This is null for libcalls where that information may | |
2531 | not be available. | |
2532 | CUM is a variable of type CUMULATIVE_ARGS which gives info about | |
2533 | the preceding args and about the function being called. | |
2534 | NAMED is nonzero if this argument is a named parameter | |
2535 | (otherwise it is an extra parameter matching an ellipsis). */ | |
2536 | ||
07933f72 | 2537 | rtx |
b96a374d AJ |
2538 | function_arg (CUMULATIVE_ARGS *cum, /* current arg information */ |
2539 | enum machine_mode mode, /* current arg mode */ | |
2540 | tree type, /* type of the argument or 0 if lib support */ | |
2541 | int named) /* != 0 for normal args, == 0 for ... args */ | |
b08de47e MM |
2542 | { |
2543 | rtx ret = NULL_RTX; | |
5ac9118e KG |
2544 | int bytes = |
2545 | (mode == BLKmode) ? int_size_in_bytes (type) : (int) GET_MODE_SIZE (mode); | |
b08de47e | 2546 | int words = (bytes + UNITS_PER_WORD - 1) / UNITS_PER_WORD; |
bcf17554 | 2547 | static bool warnedsse, warnedmmx; |
b08de47e | 2548 | |
5bdc5878 | 2549 | /* Handle a hidden AL argument containing number of registers for varargs |
53c17031 JH |
2550 | x86-64 functions. For i386 ABI just return constm1_rtx to avoid |
2551 | any AL settings. */ | |
32ee7d1d | 2552 | if (mode == VOIDmode) |
b08de47e | 2553 | { |
53c17031 JH |
2554 | if (TARGET_64BIT) |
2555 | return GEN_INT (cum->maybe_vaarg | |
2556 | ? (cum->sse_nregs < 0 | |
2557 | ? SSE_REGPARM_MAX | |
2558 | : cum->sse_regno) | |
2559 | : -1); | |
2560 | else | |
2561 | return constm1_rtx; | |
b08de47e | 2562 | } |
53c17031 JH |
2563 | if (TARGET_64BIT) |
2564 | ret = construct_container (mode, type, 0, cum->nregs, cum->sse_nregs, | |
2565 | &x86_64_int_parameter_registers [cum->regno], | |
2566 | cum->sse_regno); | |
2567 | else | |
2568 | switch (mode) | |
2569 | { | |
2570 | /* For now, pass fp/complex values on the stack. */ | |
2571 | default: | |
2572 | break; | |
2573 | ||
2574 | case BLKmode: | |
8d454008 RH |
2575 | if (bytes < 0) |
2576 | break; | |
5efb1046 | 2577 | /* FALLTHRU */ |
53c17031 JH |
2578 | case DImode: |
2579 | case SImode: | |
2580 | case HImode: | |
2581 | case QImode: | |
2582 | if (words <= cum->nregs) | |
b96a374d AJ |
2583 | { |
2584 | int regno = cum->regno; | |
2585 | ||
2586 | /* Fastcall allocates the first two DWORD (SImode) or | |
2587 | smaller arguments to ECX and EDX. */ | |
2588 | if (cum->fastcall) | |
2589 | { | |
2590 | if (mode == BLKmode || mode == DImode) | |
2591 | break; | |
2592 | ||
2593 | /* ECX not EAX is the first allocated register. */ | |
2594 | if (regno == 0) | |
e767b5be | 2595 | regno = 2; |
b96a374d AJ |
2596 | } |
2597 | ret = gen_rtx_REG (mode, regno); | |
2598 | } | |
53c17031 JH |
2599 | break; |
2600 | case TImode: | |
bcf17554 JH |
2601 | case V16QImode: |
2602 | case V8HImode: | |
2603 | case V4SImode: | |
2604 | case V2DImode: | |
2605 | case V4SFmode: | |
2606 | case V2DFmode: | |
2607 | if (!type || !AGGREGATE_TYPE_P (type)) | |
2608 | { | |
e1be55d0 | 2609 | if (!TARGET_SSE && !warnedmmx && cum->warn_sse) |
bcf17554 JH |
2610 | { |
2611 | warnedsse = true; | |
2612 | warning ("SSE vector argument without SSE enabled " | |
2613 | "changes the ABI"); | |
2614 | } | |
2615 | if (cum->sse_nregs) | |
2616 | ret = gen_rtx_REG (mode, cum->sse_regno + FIRST_SSE_REG); | |
2617 | } | |
2618 | break; | |
2619 | case V8QImode: | |
2620 | case V4HImode: | |
2621 | case V2SImode: | |
2622 | case V2SFmode: | |
2623 | if (!type || !AGGREGATE_TYPE_P (type)) | |
2624 | { | |
e1be55d0 | 2625 | if (!TARGET_MMX && !warnedmmx && cum->warn_mmx) |
bcf17554 JH |
2626 | { |
2627 | warnedmmx = true; | |
2628 | warning ("MMX vector argument without MMX enabled " | |
2629 | "changes the ABI"); | |
2630 | } | |
2631 | if (cum->mmx_nregs) | |
2632 | ret = gen_rtx_REG (mode, cum->mmx_regno + FIRST_MMX_REG); | |
2633 | } | |
53c17031 JH |
2634 | break; |
2635 | } | |
b08de47e MM |
2636 | |
2637 | if (TARGET_DEBUG_ARG) | |
2638 | { | |
2639 | fprintf (stderr, | |
91ea38f9 | 2640 | "function_arg (size=%d, wds=%2d, nregs=%d, mode=%4s, named=%d, ", |
b08de47e MM |
2641 | words, cum->words, cum->nregs, GET_MODE_NAME (mode), named); |
2642 | ||
2643 | if (ret) | |
91ea38f9 | 2644 | print_simple_rtl (stderr, ret); |
b08de47e MM |
2645 | else |
2646 | fprintf (stderr, ", stack"); | |
2647 | ||
2648 | fprintf (stderr, " )\n"); | |
2649 | } | |
2650 | ||
2651 | return ret; | |
2652 | } | |
53c17031 | 2653 | |
09b2e78d ZD |
2654 | /* A C expression that indicates when an argument must be passed by |
2655 | reference. If nonzero for an argument, a copy of that argument is | |
2656 | made in memory and a pointer to the argument is passed instead of | |
2657 | the argument itself. The pointer is passed in whatever way is | |
2658 | appropriate for passing a pointer to that type. */ | |
2659 | ||
2660 | int | |
b96a374d AJ |
2661 | function_arg_pass_by_reference (CUMULATIVE_ARGS *cum ATTRIBUTE_UNUSED, |
2662 | enum machine_mode mode ATTRIBUTE_UNUSED, | |
2663 | tree type, int named ATTRIBUTE_UNUSED) | |
09b2e78d ZD |
2664 | { |
2665 | if (!TARGET_64BIT) | |
2666 | return 0; | |
2667 | ||
2668 | if (type && int_size_in_bytes (type) == -1) | |
2669 | { | |
2670 | if (TARGET_DEBUG_ARG) | |
2671 | fprintf (stderr, "function_arg_pass_by_reference\n"); | |
2672 | return 1; | |
2673 | } | |
2674 | ||
2675 | return 0; | |
2676 | } | |
2677 | ||
8b978a57 JH |
2678 | /* Return true when TYPE should be 128bit aligned for 32bit argument passing |
2679 | ABI */ | |
2680 | static bool | |
b96a374d | 2681 | contains_128bit_aligned_vector_p (tree type) |
8b978a57 JH |
2682 | { |
2683 | enum machine_mode mode = TYPE_MODE (type); | |
2684 | if (SSE_REG_MODE_P (mode) | |
2685 | && (!TYPE_USER_ALIGN (type) || TYPE_ALIGN (type) > 128)) | |
2686 | return true; | |
2687 | if (TYPE_ALIGN (type) < 128) | |
2688 | return false; | |
2689 | ||
2690 | if (AGGREGATE_TYPE_P (type)) | |
2691 | { | |
2a43945f | 2692 | /* Walk the aggregates recursively. */ |
8b978a57 JH |
2693 | if (TREE_CODE (type) == RECORD_TYPE |
2694 | || TREE_CODE (type) == UNION_TYPE | |
2695 | || TREE_CODE (type) == QUAL_UNION_TYPE) | |
2696 | { | |
2697 | tree field; | |
2698 | ||
2699 | if (TYPE_BINFO (type) != NULL | |
2700 | && TYPE_BINFO_BASETYPES (type) != NULL) | |
2701 | { | |
2702 | tree bases = TYPE_BINFO_BASETYPES (type); | |
2703 | int n_bases = TREE_VEC_LENGTH (bases); | |
2704 | int i; | |
2705 | ||
2706 | for (i = 0; i < n_bases; ++i) | |
2707 | { | |
2708 | tree binfo = TREE_VEC_ELT (bases, i); | |
2709 | tree type = BINFO_TYPE (binfo); | |
2710 | ||
2711 | if (contains_128bit_aligned_vector_p (type)) | |
2712 | return true; | |
2713 | } | |
2714 | } | |
43f3a59d | 2715 | /* And now merge the fields of structure. */ |
8b978a57 JH |
2716 | for (field = TYPE_FIELDS (type); field; field = TREE_CHAIN (field)) |
2717 | { | |
2718 | if (TREE_CODE (field) == FIELD_DECL | |
2719 | && contains_128bit_aligned_vector_p (TREE_TYPE (field))) | |
2720 | return true; | |
2721 | } | |
2722 | } | |
2723 | /* Just for use if some languages passes arrays by value. */ | |
2724 | else if (TREE_CODE (type) == ARRAY_TYPE) | |
2725 | { | |
2726 | if (contains_128bit_aligned_vector_p (TREE_TYPE (type))) | |
2727 | return true; | |
2728 | } | |
2729 | else | |
2730 | abort (); | |
2731 | } | |
2732 | return false; | |
2733 | } | |
2734 | ||
bb498ea3 AH |
2735 | /* Gives the alignment boundary, in bits, of an argument with the |
2736 | specified mode and type. */ | |
53c17031 JH |
2737 | |
2738 | int | |
b96a374d | 2739 | ix86_function_arg_boundary (enum machine_mode mode, tree type) |
53c17031 JH |
2740 | { |
2741 | int align; | |
53c17031 JH |
2742 | if (type) |
2743 | align = TYPE_ALIGN (type); | |
2744 | else | |
2745 | align = GET_MODE_ALIGNMENT (mode); | |
2746 | if (align < PARM_BOUNDARY) | |
2747 | align = PARM_BOUNDARY; | |
8b978a57 JH |
2748 | if (!TARGET_64BIT) |
2749 | { | |
2750 | /* i386 ABI defines all arguments to be 4 byte aligned. We have to | |
2751 | make an exception for SSE modes since these require 128bit | |
b96a374d | 2752 | alignment. |
8b978a57 JH |
2753 | |
2754 | The handling here differs from field_alignment. ICC aligns MMX | |
2755 | arguments to 4 byte boundaries, while structure fields are aligned | |
2756 | to 8 byte boundaries. */ | |
2757 | if (!type) | |
2758 | { | |
2759 | if (!SSE_REG_MODE_P (mode)) | |
2760 | align = PARM_BOUNDARY; | |
2761 | } | |
2762 | else | |
2763 | { | |
2764 | if (!contains_128bit_aligned_vector_p (type)) | |
2765 | align = PARM_BOUNDARY; | |
2766 | } | |
8b978a57 | 2767 | } |
53c17031 JH |
2768 | if (align > 128) |
2769 | align = 128; | |
2770 | return align; | |
2771 | } | |
2772 | ||
2773 | /* Return true if N is a possible register number of function value. */ | |
2774 | bool | |
b96a374d | 2775 | ix86_function_value_regno_p (int regno) |
53c17031 JH |
2776 | { |
2777 | if (!TARGET_64BIT) | |
2778 | { | |
2779 | return ((regno) == 0 | |
2780 | || ((regno) == FIRST_FLOAT_REG && TARGET_FLOAT_RETURNS_IN_80387) | |
2781 | || ((regno) == FIRST_SSE_REG && TARGET_SSE)); | |
2782 | } | |
2783 | return ((regno) == 0 || (regno) == FIRST_FLOAT_REG | |
2784 | || ((regno) == FIRST_SSE_REG && TARGET_SSE) | |
2785 | || ((regno) == FIRST_FLOAT_REG && TARGET_FLOAT_RETURNS_IN_80387)); | |
2786 | } | |
2787 | ||
2788 | /* Define how to find the value returned by a function. | |
2789 | VALTYPE is the data type of the value (as a tree). | |
2790 | If the precise function being called is known, FUNC is its FUNCTION_DECL; | |
2791 | otherwise, FUNC is 0. */ | |
2792 | rtx | |
b96a374d | 2793 | ix86_function_value (tree valtype) |
53c17031 JH |
2794 | { |
2795 | if (TARGET_64BIT) | |
2796 | { | |
2797 | rtx ret = construct_container (TYPE_MODE (valtype), valtype, 1, | |
2798 | REGPARM_MAX, SSE_REGPARM_MAX, | |
2799 | x86_64_int_return_registers, 0); | |
d1f87653 KH |
2800 | /* For zero sized structures, construct_container return NULL, but we need |
2801 | to keep rest of compiler happy by returning meaningful value. */ | |
53c17031 JH |
2802 | if (!ret) |
2803 | ret = gen_rtx_REG (TYPE_MODE (valtype), 0); | |
2804 | return ret; | |
2805 | } | |
2806 | else | |
b069de3b SS |
2807 | return gen_rtx_REG (TYPE_MODE (valtype), |
2808 | ix86_value_regno (TYPE_MODE (valtype))); | |
53c17031 JH |
2809 | } |
2810 | ||
f5143c46 | 2811 | /* Return false iff type is returned in memory. */ |
53c17031 | 2812 | int |
b96a374d | 2813 | ix86_return_in_memory (tree type) |
53c17031 | 2814 | { |
a30b6839 RH |
2815 | int needed_intregs, needed_sseregs, size; |
2816 | enum machine_mode mode = TYPE_MODE (type); | |
2817 | ||
53c17031 | 2818 | if (TARGET_64BIT) |
a30b6839 RH |
2819 | return !examine_argument (mode, type, 1, &needed_intregs, &needed_sseregs); |
2820 | ||
2821 | if (mode == BLKmode) | |
2822 | return 1; | |
2823 | ||
2824 | size = int_size_in_bytes (type); | |
2825 | ||
2826 | if (MS_AGGREGATE_RETURN && AGGREGATE_TYPE_P (type) && size <= 8) | |
2827 | return 0; | |
2828 | ||
2829 | if (VECTOR_MODE_P (mode) || mode == TImode) | |
53c17031 | 2830 | { |
a30b6839 RH |
2831 | /* User-created vectors small enough to fit in EAX. */ |
2832 | if (size < 8) | |
5e062767 | 2833 | return 0; |
a30b6839 RH |
2834 | |
2835 | /* MMX/3dNow values are returned on the stack, since we've | |
2836 | got to EMMS/FEMMS before returning. */ | |
2837 | if (size == 8) | |
53c17031 | 2838 | return 1; |
a30b6839 RH |
2839 | |
2840 | /* SSE values are returned in XMM0. */ | |
2841 | /* ??? Except when it doesn't exist? We have a choice of | |
2842 | either (1) being abi incompatible with a -march switch, | |
2843 | or (2) generating an error here. Given no good solution, | |
2844 | I think the safest thing is one warning. The user won't | |
43f3a59d | 2845 | be able to use -Werror, but.... */ |
a30b6839 RH |
2846 | if (size == 16) |
2847 | { | |
2848 | static bool warned; | |
2849 | ||
2850 | if (TARGET_SSE) | |
2851 | return 0; | |
2852 | ||
2853 | if (!warned) | |
2854 | { | |
2855 | warned = true; | |
2856 | warning ("SSE vector return without SSE enabled " | |
2857 | "changes the ABI"); | |
2858 | } | |
2859 | return 1; | |
2860 | } | |
53c17031 | 2861 | } |
a30b6839 | 2862 | |
cf2348cb | 2863 | if (mode == XFmode) |
a30b6839 | 2864 | return 0; |
f8a1ebc6 | 2865 | |
a30b6839 RH |
2866 | if (size > 12) |
2867 | return 1; | |
2868 | return 0; | |
53c17031 JH |
2869 | } |
2870 | ||
2871 | /* Define how to find the value returned by a library function | |
2872 | assuming the value has mode MODE. */ | |
2873 | rtx | |
b96a374d | 2874 | ix86_libcall_value (enum machine_mode mode) |
53c17031 JH |
2875 | { |
2876 | if (TARGET_64BIT) | |
2877 | { | |
2878 | switch (mode) | |
2879 | { | |
f8a1ebc6 JH |
2880 | case SFmode: |
2881 | case SCmode: | |
2882 | case DFmode: | |
2883 | case DCmode: | |
2884 | return gen_rtx_REG (mode, FIRST_SSE_REG); | |
2885 | case XFmode: | |
2886 | case XCmode: | |
2887 | return gen_rtx_REG (mode, FIRST_FLOAT_REG); | |
2888 | case TFmode: | |
f8a1ebc6 JH |
2889 | case TCmode: |
2890 | return NULL; | |
2891 | default: | |
2892 | return gen_rtx_REG (mode, 0); | |
53c17031 JH |
2893 | } |
2894 | } | |
2895 | else | |
f8a1ebc6 | 2896 | return gen_rtx_REG (mode, ix86_value_regno (mode)); |
b069de3b SS |
2897 | } |
2898 | ||
2899 | /* Given a mode, return the register to use for a return value. */ | |
2900 | ||
2901 | static int | |
b96a374d | 2902 | ix86_value_regno (enum machine_mode mode) |
b069de3b | 2903 | { |
a30b6839 | 2904 | /* Floating point return values in %st(0). */ |
b069de3b SS |
2905 | if (GET_MODE_CLASS (mode) == MODE_FLOAT && TARGET_FLOAT_RETURNS_IN_80387) |
2906 | return FIRST_FLOAT_REG; | |
a30b6839 RH |
2907 | /* 16-byte vector modes in %xmm0. See ix86_return_in_memory for where |
2908 | we prevent this case when sse is not available. */ | |
2909 | if (mode == TImode || (VECTOR_MODE_P (mode) && GET_MODE_SIZE (mode) == 16)) | |
b069de3b | 2910 | return FIRST_SSE_REG; |
a30b6839 | 2911 | /* Everything else in %eax. */ |
b069de3b | 2912 | return 0; |
53c17031 | 2913 | } |
ad919812 JH |
2914 | \f |
2915 | /* Create the va_list data type. */ | |
53c17031 | 2916 | |
c35d187f RH |
2917 | static tree |
2918 | ix86_build_builtin_va_list (void) | |
ad919812 JH |
2919 | { |
2920 | tree f_gpr, f_fpr, f_ovf, f_sav, record, type_decl; | |
53c17031 | 2921 | |
ad919812 JH |
2922 | /* For i386 we use plain pointer to argument area. */ |
2923 | if (!TARGET_64BIT) | |
2924 | return build_pointer_type (char_type_node); | |
2925 | ||
f1e639b1 | 2926 | record = (*lang_hooks.types.make_type) (RECORD_TYPE); |
ad919812 JH |
2927 | type_decl = build_decl (TYPE_DECL, get_identifier ("__va_list_tag"), record); |
2928 | ||
fce5a9f2 | 2929 | f_gpr = build_decl (FIELD_DECL, get_identifier ("gp_offset"), |
ad919812 | 2930 | unsigned_type_node); |
fce5a9f2 | 2931 | f_fpr = build_decl (FIELD_DECL, get_identifier ("fp_offset"), |
ad919812 JH |
2932 | unsigned_type_node); |
2933 | f_ovf = build_decl (FIELD_DECL, get_identifier ("overflow_arg_area"), | |
2934 | ptr_type_node); | |
2935 | f_sav = build_decl (FIELD_DECL, get_identifier ("reg_save_area"), | |
2936 | ptr_type_node); | |
2937 | ||
2938 | DECL_FIELD_CONTEXT (f_gpr) = record; | |
2939 | DECL_FIELD_CONTEXT (f_fpr) = record; | |
2940 | DECL_FIELD_CONTEXT (f_ovf) = record; | |
2941 | DECL_FIELD_CONTEXT (f_sav) = record; | |
2942 | ||
2943 | TREE_CHAIN (record) = type_decl; | |
2944 | TYPE_NAME (record) = type_decl; | |
2945 | TYPE_FIELDS (record) = f_gpr; | |
2946 | TREE_CHAIN (f_gpr) = f_fpr; | |
2947 | TREE_CHAIN (f_fpr) = f_ovf; | |
2948 | TREE_CHAIN (f_ovf) = f_sav; | |
2949 | ||
2950 | layout_type (record); | |
2951 | ||
2952 | /* The correct type is an array type of one element. */ | |
2953 | return build_array_type (record, build_index_type (size_zero_node)); | |
2954 | } | |
2955 | ||
a0524eb3 | 2956 | /* Worker function for TARGET_SETUP_INCOMING_VARARGS. */ |
ad919812 | 2957 | |
a0524eb3 | 2958 | static void |
b96a374d AJ |
2959 | ix86_setup_incoming_varargs (CUMULATIVE_ARGS *cum, enum machine_mode mode, |
2960 | tree type, int *pretend_size ATTRIBUTE_UNUSED, | |
2961 | int no_rtl) | |
ad919812 JH |
2962 | { |
2963 | CUMULATIVE_ARGS next_cum; | |
2964 | rtx save_area = NULL_RTX, mem; | |
2965 | rtx label; | |
2966 | rtx label_ref; | |
2967 | rtx tmp_reg; | |
2968 | rtx nsse_reg; | |
2969 | int set; | |
2970 | tree fntype; | |
2971 | int stdarg_p; | |
2972 | int i; | |
2973 | ||
2974 | if (!TARGET_64BIT) | |
2975 | return; | |
2976 | ||
2977 | /* Indicate to allocate space on the stack for varargs save area. */ | |
2978 | ix86_save_varrargs_registers = 1; | |
2979 | ||
5474eed5 JH |
2980 | cfun->stack_alignment_needed = 128; |
2981 | ||
ad919812 JH |
2982 | fntype = TREE_TYPE (current_function_decl); |
2983 | stdarg_p = (TYPE_ARG_TYPES (fntype) != 0 | |
2984 | && (TREE_VALUE (tree_last (TYPE_ARG_TYPES (fntype))) | |
2985 | != void_type_node)); | |
2986 | ||
2987 | /* For varargs, we do not want to skip the dummy va_dcl argument. | |
2988 | For stdargs, we do want to skip the last named argument. */ | |
2989 | next_cum = *cum; | |
2990 | if (stdarg_p) | |
2991 | function_arg_advance (&next_cum, mode, type, 1); | |
2992 | ||
2993 | if (!no_rtl) | |
2994 | save_area = frame_pointer_rtx; | |
2995 | ||
2996 | set = get_varargs_alias_set (); | |
2997 | ||
2998 | for (i = next_cum.regno; i < ix86_regparm; i++) | |
2999 | { | |
3000 | mem = gen_rtx_MEM (Pmode, | |
3001 | plus_constant (save_area, i * UNITS_PER_WORD)); | |
0692acba | 3002 | set_mem_alias_set (mem, set); |
ad919812 JH |
3003 | emit_move_insn (mem, gen_rtx_REG (Pmode, |
3004 | x86_64_int_parameter_registers[i])); | |
3005 | } | |
3006 | ||
3007 | if (next_cum.sse_nregs) | |
3008 | { | |
3009 | /* Now emit code to save SSE registers. The AX parameter contains number | |
d1f87653 | 3010 | of SSE parameter registers used to call this function. We use |
ad919812 JH |
3011 | sse_prologue_save insn template that produces computed jump across |
3012 | SSE saves. We need some preparation work to get this working. */ | |
3013 | ||
3014 | label = gen_label_rtx (); | |
3015 | label_ref = gen_rtx_LABEL_REF (Pmode, label); | |
3016 | ||
3017 | /* Compute address to jump to : | |
3018 | label - 5*eax + nnamed_sse_arguments*5 */ | |
3019 | tmp_reg = gen_reg_rtx (Pmode); | |
3020 | nsse_reg = gen_reg_rtx (Pmode); | |
3021 | emit_insn (gen_zero_extendqidi2 (nsse_reg, gen_rtx_REG (QImode, 0))); | |
3022 | emit_insn (gen_rtx_SET (VOIDmode, tmp_reg, | |
44cf5b6a | 3023 | gen_rtx_MULT (Pmode, nsse_reg, |
ad919812 JH |
3024 | GEN_INT (4)))); |
3025 | if (next_cum.sse_regno) | |
3026 | emit_move_insn | |
3027 | (nsse_reg, | |
3028 | gen_rtx_CONST (DImode, | |
3029 | gen_rtx_PLUS (DImode, | |
3030 | label_ref, | |
3031 | GEN_INT (next_cum.sse_regno * 4)))); | |
3032 | else | |
3033 | emit_move_insn (nsse_reg, label_ref); | |
3034 | emit_insn (gen_subdi3 (nsse_reg, nsse_reg, tmp_reg)); | |
3035 | ||
3036 | /* Compute address of memory block we save into. We always use pointer | |
3037 | pointing 127 bytes after first byte to store - this is needed to keep | |
3038 | instruction size limited by 4 bytes. */ | |
3039 | tmp_reg = gen_reg_rtx (Pmode); | |
8ac61af7 RK |
3040 | emit_insn (gen_rtx_SET (VOIDmode, tmp_reg, |
3041 | plus_constant (save_area, | |
3042 | 8 * REGPARM_MAX + 127))); | |
ad919812 | 3043 | mem = gen_rtx_MEM (BLKmode, plus_constant (tmp_reg, -127)); |
14f73b5a | 3044 | set_mem_alias_set (mem, set); |
8ac61af7 | 3045 | set_mem_align (mem, BITS_PER_WORD); |
ad919812 JH |
3046 | |
3047 | /* And finally do the dirty job! */ | |
8ac61af7 RK |
3048 | emit_insn (gen_sse_prologue_save (mem, nsse_reg, |
3049 | GEN_INT (next_cum.sse_regno), label)); | |
ad919812 JH |
3050 | } |
3051 | ||
3052 | } | |
3053 | ||
3054 | /* Implement va_start. */ | |
3055 | ||
3056 | void | |
b96a374d | 3057 | ix86_va_start (tree valist, rtx nextarg) |
ad919812 JH |
3058 | { |
3059 | HOST_WIDE_INT words, n_gpr, n_fpr; | |
3060 | tree f_gpr, f_fpr, f_ovf, f_sav; | |
3061 | tree gpr, fpr, ovf, sav, t; | |
3062 | ||
3063 | /* Only 64bit target needs something special. */ | |
3064 | if (!TARGET_64BIT) | |
3065 | { | |
e5faf155 | 3066 | std_expand_builtin_va_start (valist, nextarg); |
ad919812 JH |
3067 | return; |
3068 | } | |
3069 | ||
3070 | f_gpr = TYPE_FIELDS (TREE_TYPE (va_list_type_node)); | |
3071 | f_fpr = TREE_CHAIN (f_gpr); | |
3072 | f_ovf = TREE_CHAIN (f_fpr); | |
3073 | f_sav = TREE_CHAIN (f_ovf); | |
3074 | ||
3075 | valist = build1 (INDIRECT_REF, TREE_TYPE (TREE_TYPE (valist)), valist); | |
3076 | gpr = build (COMPONENT_REF, TREE_TYPE (f_gpr), valist, f_gpr); | |
3077 | fpr = build (COMPONENT_REF, TREE_TYPE (f_fpr), valist, f_fpr); | |
3078 | ovf = build (COMPONENT_REF, TREE_TYPE (f_ovf), valist, f_ovf); | |
3079 | sav = build (COMPONENT_REF, TREE_TYPE (f_sav), valist, f_sav); | |
3080 | ||
3081 | /* Count number of gp and fp argument registers used. */ | |
3082 | words = current_function_args_info.words; | |
3083 | n_gpr = current_function_args_info.regno; | |
3084 | n_fpr = current_function_args_info.sse_regno; | |
3085 | ||
3086 | if (TARGET_DEBUG_ARG) | |
3087 | fprintf (stderr, "va_start: words = %d, n_gpr = %d, n_fpr = %d\n", | |
b531087a | 3088 | (int) words, (int) n_gpr, (int) n_fpr); |
ad919812 JH |
3089 | |
3090 | t = build (MODIFY_EXPR, TREE_TYPE (gpr), gpr, | |
3091 | build_int_2 (n_gpr * 8, 0)); | |
3092 | TREE_SIDE_EFFECTS (t) = 1; | |
3093 | expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL); | |
3094 | ||
3095 | t = build (MODIFY_EXPR, TREE_TYPE (fpr), fpr, | |
3096 | build_int_2 (n_fpr * 16 + 8*REGPARM_MAX, 0)); | |
3097 | TREE_SIDE_EFFECTS (t) = 1; | |
3098 | expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL); | |
3099 | ||
3100 | /* Find the overflow area. */ | |
3101 | t = make_tree (TREE_TYPE (ovf), virtual_incoming_args_rtx); | |
3102 | if (words != 0) | |
3103 | t = build (PLUS_EXPR, TREE_TYPE (ovf), t, | |
3104 | build_int_2 (words * UNITS_PER_WORD, 0)); | |
3105 | t = build (MODIFY_EXPR, TREE_TYPE (ovf), ovf, t); | |
3106 | TREE_SIDE_EFFECTS (t) = 1; | |
3107 | expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL); | |
3108 | ||
3109 | /* Find the register save area. | |
3110 | Prologue of the function save it right above stack frame. */ | |
3111 | t = make_tree (TREE_TYPE (sav), frame_pointer_rtx); | |
3112 | t = build (MODIFY_EXPR, TREE_TYPE (sav), sav, t); | |
3113 | TREE_SIDE_EFFECTS (t) = 1; | |
3114 | expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL); | |
3115 | } | |
3116 | ||
3117 | /* Implement va_arg. */ | |
3118 | rtx | |
b96a374d | 3119 | ix86_va_arg (tree valist, tree type) |
ad919812 | 3120 | { |
0139adca | 3121 | static const int intreg[6] = { 0, 1, 2, 3, 4, 5 }; |
ad919812 JH |
3122 | tree f_gpr, f_fpr, f_ovf, f_sav; |
3123 | tree gpr, fpr, ovf, sav, t; | |
b932f770 | 3124 | int size, rsize; |
ad919812 JH |
3125 | rtx lab_false, lab_over = NULL_RTX; |
3126 | rtx addr_rtx, r; | |
3127 | rtx container; | |
09b2e78d | 3128 | int indirect_p = 0; |
ad919812 JH |
3129 | |
3130 | /* Only 64bit target needs something special. */ | |
3131 | if (!TARGET_64BIT) | |
3132 | { | |
3133 | return std_expand_builtin_va_arg (valist, type); | |
3134 | } | |
3135 | ||
3136 | f_gpr = TYPE_FIELDS (TREE_TYPE (va_list_type_node)); | |
3137 | f_fpr = TREE_CHAIN (f_gpr); | |
3138 | f_ovf = TREE_CHAIN (f_fpr); | |
3139 | f_sav = TREE_CHAIN (f_ovf); | |
3140 | ||
3141 | valist = build1 (INDIRECT_REF, TREE_TYPE (TREE_TYPE (valist)), valist); | |
3142 | gpr = build (COMPONENT_REF, TREE_TYPE (f_gpr), valist, f_gpr); | |
3143 | fpr = build (COMPONENT_REF, TREE_TYPE (f_fpr), valist, f_fpr); | |
3144 | ovf = build (COMPONENT_REF, TREE_TYPE (f_ovf), valist, f_ovf); | |
3145 | sav = build (COMPONENT_REF, TREE_TYPE (f_sav), valist, f_sav); | |
3146 | ||
3147 | size = int_size_in_bytes (type); | |
09b2e78d ZD |
3148 | if (size == -1) |
3149 | { | |
3150 | /* Passed by reference. */ | |
3151 | indirect_p = 1; | |
3152 | type = build_pointer_type (type); | |
3153 | size = int_size_in_bytes (type); | |
3154 | } | |
ad919812 JH |
3155 | rsize = (size + UNITS_PER_WORD - 1) / UNITS_PER_WORD; |
3156 | ||
3157 | container = construct_container (TYPE_MODE (type), type, 0, | |
3158 | REGPARM_MAX, SSE_REGPARM_MAX, intreg, 0); | |
3159 | /* | |
3160 | * Pull the value out of the saved registers ... | |
3161 | */ | |
3162 | ||
3163 | addr_rtx = gen_reg_rtx (Pmode); | |
3164 | ||
3165 | if (container) | |
3166 | { | |
3167 | rtx int_addr_rtx, sse_addr_rtx; | |
3168 | int needed_intregs, needed_sseregs; | |
3169 | int need_temp; | |
3170 | ||
3171 | lab_over = gen_label_rtx (); | |
3172 | lab_false = gen_label_rtx (); | |
8bad7136 | 3173 | |
ad919812 JH |
3174 | examine_argument (TYPE_MODE (type), type, 0, |
3175 | &needed_intregs, &needed_sseregs); | |
3176 | ||
3177 | ||
3178 | need_temp = ((needed_intregs && TYPE_ALIGN (type) > 64) | |
3179 | || TYPE_ALIGN (type) > 128); | |
3180 | ||
d1f87653 | 3181 | /* In case we are passing structure, verify that it is consecutive block |
ad919812 JH |
3182 | on the register save area. If not we need to do moves. */ |
3183 | if (!need_temp && !REG_P (container)) | |
3184 | { | |
d1f87653 | 3185 | /* Verify that all registers are strictly consecutive */ |
ad919812 JH |
3186 | if (SSE_REGNO_P (REGNO (XEXP (XVECEXP (container, 0, 0), 0)))) |
3187 | { | |
3188 | int i; | |
3189 | ||
3190 | for (i = 0; i < XVECLEN (container, 0) && !need_temp; i++) | |
3191 | { | |
3192 | rtx slot = XVECEXP (container, 0, i); | |
b531087a | 3193 | if (REGNO (XEXP (slot, 0)) != FIRST_SSE_REG + (unsigned int) i |
ad919812 JH |
3194 | || INTVAL (XEXP (slot, 1)) != i * 16) |
3195 | need_temp = 1; | |
3196 | } | |
3197 | } | |
3198 | else | |
3199 | { | |
3200 | int i; | |
3201 | ||
3202 | for (i = 0; i < XVECLEN (container, 0) && !need_temp; i++) | |
3203 | { | |
3204 | rtx slot = XVECEXP (container, 0, i); | |
b531087a | 3205 | if (REGNO (XEXP (slot, 0)) != (unsigned int) i |
ad919812 JH |
3206 | || INTVAL (XEXP (slot, 1)) != i * 8) |
3207 | need_temp = 1; | |
3208 | } | |
3209 | } | |
3210 | } | |
3211 | if (!need_temp) | |
3212 | { | |
3213 | int_addr_rtx = addr_rtx; | |
3214 | sse_addr_rtx = addr_rtx; | |
3215 | } | |
3216 | else | |
3217 | { | |
3218 | int_addr_rtx = gen_reg_rtx (Pmode); | |
3219 | sse_addr_rtx = gen_reg_rtx (Pmode); | |
3220 | } | |
3221 | /* First ensure that we fit completely in registers. */ | |
3222 | if (needed_intregs) | |
3223 | { | |
3224 | emit_cmp_and_jump_insns (expand_expr | |
3225 | (gpr, NULL_RTX, SImode, EXPAND_NORMAL), | |
3226 | GEN_INT ((REGPARM_MAX - needed_intregs + | |
3227 | 1) * 8), GE, const1_rtx, SImode, | |
d43e0b7d | 3228 | 1, lab_false); |
ad919812 JH |
3229 | } |
3230 | if (needed_sseregs) | |
3231 | { | |
3232 | emit_cmp_and_jump_insns (expand_expr | |
3233 | (fpr, NULL_RTX, SImode, EXPAND_NORMAL), | |
3234 | GEN_INT ((SSE_REGPARM_MAX - | |
3235 | needed_sseregs + 1) * 16 + | |
3236 | REGPARM_MAX * 8), GE, const1_rtx, | |
d43e0b7d | 3237 | SImode, 1, lab_false); |
ad919812 JH |
3238 | } |
3239 | ||
3240 | /* Compute index to start of area used for integer regs. */ | |
3241 | if (needed_intregs) | |
3242 | { | |
3243 | t = build (PLUS_EXPR, ptr_type_node, sav, gpr); | |
3244 | r = expand_expr (t, int_addr_rtx, Pmode, EXPAND_NORMAL); | |
3245 | if (r != int_addr_rtx) | |
3246 | emit_move_insn (int_addr_rtx, r); | |
3247 | } | |
3248 | if (needed_sseregs) | |
3249 | { | |
3250 | t = build (PLUS_EXPR, ptr_type_node, sav, fpr); | |
3251 | r = expand_expr (t, sse_addr_rtx, Pmode, EXPAND_NORMAL); | |
3252 | if (r != sse_addr_rtx) | |
3253 | emit_move_insn (sse_addr_rtx, r); | |
3254 | } | |
3255 | if (need_temp) | |
3256 | { | |
3257 | int i; | |
3258 | rtx mem; | |
70642ee3 | 3259 | rtx x; |
ad919812 | 3260 | |
b932f770 | 3261 | /* Never use the memory itself, as it has the alias set. */ |
70642ee3 JH |
3262 | x = XEXP (assign_temp (type, 0, 1, 0), 0); |
3263 | mem = gen_rtx_MEM (BLKmode, x); | |
3264 | force_operand (x, addr_rtx); | |
0692acba | 3265 | set_mem_alias_set (mem, get_varargs_alias_set ()); |
8ac61af7 | 3266 | set_mem_align (mem, BITS_PER_UNIT); |
b932f770 | 3267 | |
ad919812 JH |
3268 | for (i = 0; i < XVECLEN (container, 0); i++) |
3269 | { | |
3270 | rtx slot = XVECEXP (container, 0, i); | |
3271 | rtx reg = XEXP (slot, 0); | |
3272 | enum machine_mode mode = GET_MODE (reg); | |
3273 | rtx src_addr; | |
3274 | rtx src_mem; | |
3275 | int src_offset; | |
3276 | rtx dest_mem; | |
3277 | ||
3278 | if (SSE_REGNO_P (REGNO (reg))) | |
3279 | { | |
3280 | src_addr = sse_addr_rtx; | |
3281 | src_offset = (REGNO (reg) - FIRST_SSE_REG) * 16; | |
3282 | } | |
3283 | else | |
3284 | { | |
3285 | src_addr = int_addr_rtx; | |
3286 | src_offset = REGNO (reg) * 8; | |
3287 | } | |
3288 | src_mem = gen_rtx_MEM (mode, src_addr); | |
0692acba | 3289 | set_mem_alias_set (src_mem, get_varargs_alias_set ()); |
ad919812 JH |
3290 | src_mem = adjust_address (src_mem, mode, src_offset); |
3291 | dest_mem = adjust_address (mem, mode, INTVAL (XEXP (slot, 1))); | |
ad919812 JH |
3292 | emit_move_insn (dest_mem, src_mem); |
3293 | } | |
3294 | } | |
3295 | ||
3296 | if (needed_intregs) | |
3297 | { | |
3298 | t = | |
3299 | build (PLUS_EXPR, TREE_TYPE (gpr), gpr, | |
3300 | build_int_2 (needed_intregs * 8, 0)); | |
3301 | t = build (MODIFY_EXPR, TREE_TYPE (gpr), gpr, t); | |
3302 | TREE_SIDE_EFFECTS (t) = 1; | |
3303 | expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL); | |
3304 | } | |
3305 | if (needed_sseregs) | |
3306 | { | |
3307 | t = | |
3308 | build (PLUS_EXPR, TREE_TYPE (fpr), fpr, | |
3309 | build_int_2 (needed_sseregs * 16, 0)); | |
3310 | t = build (MODIFY_EXPR, TREE_TYPE (fpr), fpr, t); | |
3311 | TREE_SIDE_EFFECTS (t) = 1; | |
3312 | expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL); | |
3313 | } | |
3314 | ||
3315 | emit_jump_insn (gen_jump (lab_over)); | |
3316 | emit_barrier (); | |
3317 | emit_label (lab_false); | |
3318 | } | |
3319 | ||
3320 | /* ... otherwise out of the overflow area. */ | |
3321 | ||
3322 | /* Care for on-stack alignment if needed. */ | |
3323 | if (FUNCTION_ARG_BOUNDARY (VOIDmode, type) <= 64) | |
3324 | t = ovf; | |
3325 | else | |
3326 | { | |
3327 | HOST_WIDE_INT align = FUNCTION_ARG_BOUNDARY (VOIDmode, type) / 8; | |
3328 | t = build (PLUS_EXPR, TREE_TYPE (ovf), ovf, build_int_2 (align - 1, 0)); | |
3329 | t = build (BIT_AND_EXPR, TREE_TYPE (t), t, build_int_2 (-align, -1)); | |
3330 | } | |
3331 | t = save_expr (t); | |
3332 | ||
3333 | r = expand_expr (t, addr_rtx, Pmode, EXPAND_NORMAL); | |
3334 | if (r != addr_rtx) | |
3335 | emit_move_insn (addr_rtx, r); | |
3336 | ||
3337 | t = | |
3338 | build (PLUS_EXPR, TREE_TYPE (t), t, | |
3339 | build_int_2 (rsize * UNITS_PER_WORD, 0)); | |
3340 | t = build (MODIFY_EXPR, TREE_TYPE (ovf), ovf, t); | |
3341 | TREE_SIDE_EFFECTS (t) = 1; | |
3342 | expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL); | |
3343 | ||
3344 | if (container) | |
3345 | emit_label (lab_over); | |
3346 | ||
09b2e78d ZD |
3347 | if (indirect_p) |
3348 | { | |
3349 | r = gen_rtx_MEM (Pmode, addr_rtx); | |
3350 | set_mem_alias_set (r, get_varargs_alias_set ()); | |
3351 | emit_move_insn (addr_rtx, r); | |
3352 | } | |
3353 | ||
ad919812 JH |
3354 | return addr_rtx; |
3355 | } | |
3356 | \f | |
c3c637e3 GS |
3357 | /* Return nonzero if OP is either a i387 or SSE fp register. */ |
3358 | int | |
b96a374d | 3359 | any_fp_register_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
c3c637e3 GS |
3360 | { |
3361 | return ANY_FP_REG_P (op); | |
3362 | } | |
3363 | ||
3364 | /* Return nonzero if OP is an i387 fp register. */ | |
3365 | int | |
b96a374d | 3366 | fp_register_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
c3c637e3 GS |
3367 | { |
3368 | return FP_REG_P (op); | |
3369 | } | |
3370 | ||
3371 | /* Return nonzero if OP is a non-fp register_operand. */ | |
3372 | int | |
b96a374d | 3373 | register_and_not_any_fp_reg_operand (rtx op, enum machine_mode mode) |
c3c637e3 GS |
3374 | { |
3375 | return register_operand (op, mode) && !ANY_FP_REG_P (op); | |
3376 | } | |
3377 | ||
40b982a9 | 3378 | /* Return nonzero if OP is a register operand other than an |
c3c637e3 GS |
3379 | i387 fp register. */ |
3380 | int | |
b96a374d | 3381 | register_and_not_fp_reg_operand (rtx op, enum machine_mode mode) |
c3c637e3 GS |
3382 | { |
3383 | return register_operand (op, mode) && !FP_REG_P (op); | |
3384 | } | |
3385 | ||
7dd4b4a3 JH |
3386 | /* Return nonzero if OP is general operand representable on x86_64. */ |
3387 | ||
3388 | int | |
b96a374d | 3389 | x86_64_general_operand (rtx op, enum machine_mode mode) |
7dd4b4a3 JH |
3390 | { |
3391 | if (!TARGET_64BIT) | |
3392 | return general_operand (op, mode); | |
3393 | if (nonimmediate_operand (op, mode)) | |
3394 | return 1; | |
c05dbe81 | 3395 | return x86_64_sign_extended_value (op); |
7dd4b4a3 JH |
3396 | } |
3397 | ||
3398 | /* Return nonzero if OP is general operand representable on x86_64 | |
d6a7951f | 3399 | as either sign extended or zero extended constant. */ |
7dd4b4a3 JH |
3400 | |
3401 | int | |
b96a374d | 3402 | x86_64_szext_general_operand (rtx op, enum machine_mode mode) |
7dd4b4a3 JH |
3403 | { |
3404 | if (!TARGET_64BIT) | |
3405 | return general_operand (op, mode); | |
3406 | if (nonimmediate_operand (op, mode)) | |
3407 | return 1; | |
c05dbe81 | 3408 | return x86_64_sign_extended_value (op) || x86_64_zero_extended_value (op); |
7dd4b4a3 JH |
3409 | } |
3410 | ||
3411 | /* Return nonzero if OP is nonmemory operand representable on x86_64. */ | |
3412 | ||
3413 | int | |
b96a374d | 3414 | x86_64_nonmemory_operand (rtx op, enum machine_mode mode) |
7dd4b4a3 JH |
3415 | { |
3416 | if (!TARGET_64BIT) | |
3417 | return nonmemory_operand (op, mode); | |
3418 | if (register_operand (op, mode)) | |
3419 | return 1; | |
c05dbe81 | 3420 | return x86_64_sign_extended_value (op); |
7dd4b4a3 JH |
3421 | } |
3422 | ||
3423 | /* Return nonzero if OP is nonmemory operand acceptable by movabs patterns. */ | |
3424 | ||
3425 | int | |
b96a374d | 3426 | x86_64_movabs_operand (rtx op, enum machine_mode mode) |
7dd4b4a3 JH |
3427 | { |
3428 | if (!TARGET_64BIT || !flag_pic) | |
3429 | return nonmemory_operand (op, mode); | |
c05dbe81 | 3430 | if (register_operand (op, mode) || x86_64_sign_extended_value (op)) |
7dd4b4a3 JH |
3431 | return 1; |
3432 | if (CONSTANT_P (op) && !symbolic_reference_mentioned_p (op)) | |
3433 | return 1; | |
3434 | return 0; | |
3435 | } | |
3436 | ||
7e6dc358 JJ |
3437 | /* Return nonzero if OPNUM's MEM should be matched |
3438 | in movabs* patterns. */ | |
3439 | ||
3440 | int | |
3441 | ix86_check_movabs (rtx insn, int opnum) | |
3442 | { | |
3443 | rtx set, mem; | |
3444 | ||
3445 | set = PATTERN (insn); | |
3446 | if (GET_CODE (set) == PARALLEL) | |
3447 | set = XVECEXP (set, 0, 0); | |
3448 | if (GET_CODE (set) != SET) | |
3449 | abort (); | |
3450 | mem = XEXP (set, opnum); | |
3451 | while (GET_CODE (mem) == SUBREG) | |
3452 | mem = SUBREG_REG (mem); | |
3453 | if (GET_CODE (mem) != MEM) | |
3454 | abort (); | |
3455 | return (volatile_ok || !MEM_VOLATILE_P (mem)); | |
3456 | } | |
3457 | ||
7dd4b4a3 JH |
3458 | /* Return nonzero if OP is nonmemory operand representable on x86_64. */ |
3459 | ||
3460 | int | |
b96a374d | 3461 | x86_64_szext_nonmemory_operand (rtx op, enum machine_mode mode) |
7dd4b4a3 JH |
3462 | { |
3463 | if (!TARGET_64BIT) | |
3464 | return nonmemory_operand (op, mode); | |
3465 | if (register_operand (op, mode)) | |
3466 | return 1; | |
c05dbe81 | 3467 | return x86_64_sign_extended_value (op) || x86_64_zero_extended_value (op); |
7dd4b4a3 JH |
3468 | } |
3469 | ||
3470 | /* Return nonzero if OP is immediate operand representable on x86_64. */ | |
3471 | ||
3472 | int | |
b96a374d | 3473 | x86_64_immediate_operand (rtx op, enum machine_mode mode) |
7dd4b4a3 JH |
3474 | { |
3475 | if (!TARGET_64BIT) | |
3476 | return immediate_operand (op, mode); | |
c05dbe81 | 3477 | return x86_64_sign_extended_value (op); |
7dd4b4a3 JH |
3478 | } |
3479 | ||
3480 | /* Return nonzero if OP is immediate operand representable on x86_64. */ | |
3481 | ||
3482 | int | |
b96a374d | 3483 | x86_64_zext_immediate_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
7dd4b4a3 JH |
3484 | { |
3485 | return x86_64_zero_extended_value (op); | |
3486 | } | |
3487 | ||
794a292d JJ |
3488 | /* Return nonzero if OP is CONST_INT >= 1 and <= 31 (a valid operand |
3489 | for shift & compare patterns, as shifting by 0 does not change flags), | |
3490 | else return zero. */ | |
3491 | ||
3492 | int | |
b96a374d | 3493 | const_int_1_31_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
794a292d JJ |
3494 | { |
3495 | return (GET_CODE (op) == CONST_INT && INTVAL (op) >= 1 && INTVAL (op) <= 31); | |
3496 | } | |
3497 | ||
e075ae69 RH |
3498 | /* Returns 1 if OP is either a symbol reference or a sum of a symbol |
3499 | reference and a constant. */ | |
b08de47e MM |
3500 | |
3501 | int | |
8d531ab9 | 3502 | symbolic_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
2a2ab3f9 | 3503 | { |
e075ae69 | 3504 | switch (GET_CODE (op)) |
2a2ab3f9 | 3505 | { |
e075ae69 RH |
3506 | case SYMBOL_REF: |
3507 | case LABEL_REF: | |
3508 | return 1; | |
3509 | ||
3510 | case CONST: | |
3511 | op = XEXP (op, 0); | |
3512 | if (GET_CODE (op) == SYMBOL_REF | |
3513 | || GET_CODE (op) == LABEL_REF | |
3514 | || (GET_CODE (op) == UNSPEC | |
8ee41eaf RH |
3515 | && (XINT (op, 1) == UNSPEC_GOT |
3516 | || XINT (op, 1) == UNSPEC_GOTOFF | |
3517 | || XINT (op, 1) == UNSPEC_GOTPCREL))) | |
e075ae69 RH |
3518 | return 1; |
3519 | if (GET_CODE (op) != PLUS | |
3520 | || GET_CODE (XEXP (op, 1)) != CONST_INT) | |
3521 | return 0; | |
3522 | ||
3523 | op = XEXP (op, 0); | |
3524 | if (GET_CODE (op) == SYMBOL_REF | |
3525 | || GET_CODE (op) == LABEL_REF) | |
3526 | return 1; | |
3527 | /* Only @GOTOFF gets offsets. */ | |
3528 | if (GET_CODE (op) != UNSPEC | |
8ee41eaf | 3529 | || XINT (op, 1) != UNSPEC_GOTOFF) |
e075ae69 RH |
3530 | return 0; |
3531 | ||
3532 | op = XVECEXP (op, 0, 0); | |
3533 | if (GET_CODE (op) == SYMBOL_REF | |
3534 | || GET_CODE (op) == LABEL_REF) | |
3535 | return 1; | |
3536 | return 0; | |
3537 | ||
3538 | default: | |
3539 | return 0; | |
2a2ab3f9 JVA |
3540 | } |
3541 | } | |
2a2ab3f9 | 3542 | |
e075ae69 | 3543 | /* Return true if the operand contains a @GOT or @GOTOFF reference. */ |
3b3c6a3f | 3544 | |
e075ae69 | 3545 | int |
8d531ab9 | 3546 | pic_symbolic_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
e075ae69 | 3547 | { |
6eb791fc JH |
3548 | if (GET_CODE (op) != CONST) |
3549 | return 0; | |
3550 | op = XEXP (op, 0); | |
3551 | if (TARGET_64BIT) | |
3552 | { | |
a0c8285b JH |
3553 | if (GET_CODE (op) == UNSPEC |
3554 | && XINT (op, 1) == UNSPEC_GOTPCREL) | |
3555 | return 1; | |
3556 | if (GET_CODE (op) == PLUS | |
fdacb904 JH |
3557 | && GET_CODE (XEXP (op, 0)) == UNSPEC |
3558 | && XINT (XEXP (op, 0), 1) == UNSPEC_GOTPCREL) | |
6eb791fc JH |
3559 | return 1; |
3560 | } | |
fce5a9f2 | 3561 | else |
2a2ab3f9 | 3562 | { |
e075ae69 RH |
3563 | if (GET_CODE (op) == UNSPEC) |
3564 | return 1; | |
3565 | if (GET_CODE (op) != PLUS | |
3566 | || GET_CODE (XEXP (op, 1)) != CONST_INT) | |
3567 | return 0; | |
3568 | op = XEXP (op, 0); | |
3569 | if (GET_CODE (op) == UNSPEC) | |
3570 | return 1; | |
2a2ab3f9 | 3571 | } |
e075ae69 | 3572 | return 0; |
2a2ab3f9 | 3573 | } |
2a2ab3f9 | 3574 | |
623fe810 RH |
3575 | /* Return true if OP is a symbolic operand that resolves locally. */ |
3576 | ||
3577 | static int | |
b96a374d | 3578 | local_symbolic_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
623fe810 | 3579 | { |
623fe810 RH |
3580 | if (GET_CODE (op) == CONST |
3581 | && GET_CODE (XEXP (op, 0)) == PLUS | |
c05dbe81 | 3582 | && GET_CODE (XEXP (XEXP (op, 0), 1)) == CONST_INT) |
623fe810 RH |
3583 | op = XEXP (XEXP (op, 0), 0); |
3584 | ||
8bfb45f8 JJ |
3585 | if (GET_CODE (op) == LABEL_REF) |
3586 | return 1; | |
3587 | ||
623fe810 RH |
3588 | if (GET_CODE (op) != SYMBOL_REF) |
3589 | return 0; | |
3590 | ||
2ae5ae57 | 3591 | if (SYMBOL_REF_LOCAL_P (op)) |
623fe810 RH |
3592 | return 1; |
3593 | ||
3594 | /* There is, however, a not insubstantial body of code in the rest of | |
fce5a9f2 | 3595 | the compiler that assumes it can just stick the results of |
623fe810 RH |
3596 | ASM_GENERATE_INTERNAL_LABEL in a symbol_ref and have done. */ |
3597 | /* ??? This is a hack. Should update the body of the compiler to | |
fb49053f | 3598 | always create a DECL an invoke targetm.encode_section_info. */ |
623fe810 RH |
3599 | if (strncmp (XSTR (op, 0), internal_label_prefix, |
3600 | internal_label_prefix_len) == 0) | |
3601 | return 1; | |
3602 | ||
3603 | return 0; | |
3604 | } | |
3605 | ||
2ae5ae57 | 3606 | /* Test for various thread-local symbols. */ |
f996902d RH |
3607 | |
3608 | int | |
8d531ab9 | 3609 | tls_symbolic_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
f996902d | 3610 | { |
f996902d RH |
3611 | if (GET_CODE (op) != SYMBOL_REF) |
3612 | return 0; | |
2ae5ae57 | 3613 | return SYMBOL_REF_TLS_MODEL (op); |
f996902d RH |
3614 | } |
3615 | ||
2ae5ae57 | 3616 | static inline int |
b96a374d | 3617 | tls_symbolic_operand_1 (rtx op, enum tls_model kind) |
f996902d | 3618 | { |
f996902d RH |
3619 | if (GET_CODE (op) != SYMBOL_REF) |
3620 | return 0; | |
2ae5ae57 | 3621 | return SYMBOL_REF_TLS_MODEL (op) == kind; |
f996902d RH |
3622 | } |
3623 | ||
3624 | int | |
8d531ab9 | 3625 | global_dynamic_symbolic_operand (rtx op, |
b96a374d | 3626 | enum machine_mode mode ATTRIBUTE_UNUSED) |
f996902d RH |
3627 | { |
3628 | return tls_symbolic_operand_1 (op, TLS_MODEL_GLOBAL_DYNAMIC); | |
3629 | } | |
3630 | ||
3631 | int | |
8d531ab9 | 3632 | local_dynamic_symbolic_operand (rtx op, |
b96a374d | 3633 | enum machine_mode mode ATTRIBUTE_UNUSED) |
f996902d RH |
3634 | { |
3635 | return tls_symbolic_operand_1 (op, TLS_MODEL_LOCAL_DYNAMIC); | |
3636 | } | |
3637 | ||
3638 | int | |
8d531ab9 | 3639 | initial_exec_symbolic_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
f996902d RH |
3640 | { |
3641 | return tls_symbolic_operand_1 (op, TLS_MODEL_INITIAL_EXEC); | |
3642 | } | |
3643 | ||
3644 | int | |
8d531ab9 | 3645 | local_exec_symbolic_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
f996902d RH |
3646 | { |
3647 | return tls_symbolic_operand_1 (op, TLS_MODEL_LOCAL_EXEC); | |
3648 | } | |
3649 | ||
28d52ffb RH |
3650 | /* Test for a valid operand for a call instruction. Don't allow the |
3651 | arg pointer register or virtual regs since they may decay into | |
3652 | reg + const, which the patterns can't handle. */ | |
2a2ab3f9 | 3653 | |
e075ae69 | 3654 | int |
b96a374d | 3655 | call_insn_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
e075ae69 | 3656 | { |
e075ae69 RH |
3657 | /* Disallow indirect through a virtual register. This leads to |
3658 | compiler aborts when trying to eliminate them. */ | |
3659 | if (GET_CODE (op) == REG | |
3660 | && (op == arg_pointer_rtx | |
564d80f4 | 3661 | || op == frame_pointer_rtx |
e075ae69 RH |
3662 | || (REGNO (op) >= FIRST_PSEUDO_REGISTER |
3663 | && REGNO (op) <= LAST_VIRTUAL_REGISTER))) | |
3664 | return 0; | |
2a2ab3f9 | 3665 | |
28d52ffb RH |
3666 | /* Disallow `call 1234'. Due to varying assembler lameness this |
3667 | gets either rejected or translated to `call .+1234'. */ | |
3668 | if (GET_CODE (op) == CONST_INT) | |
3669 | return 0; | |
3670 | ||
cbbf65e0 RH |
3671 | /* Explicitly allow SYMBOL_REF even if pic. */ |
3672 | if (GET_CODE (op) == SYMBOL_REF) | |
e075ae69 | 3673 | return 1; |
2a2ab3f9 | 3674 | |
cbbf65e0 RH |
3675 | /* Otherwise we can allow any general_operand in the address. */ |
3676 | return general_operand (op, Pmode); | |
e075ae69 | 3677 | } |
79325812 | 3678 | |
4977bab6 ZW |
3679 | /* Test for a valid operand for a call instruction. Don't allow the |
3680 | arg pointer register or virtual regs since they may decay into | |
3681 | reg + const, which the patterns can't handle. */ | |
3682 | ||
3683 | int | |
b96a374d | 3684 | sibcall_insn_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
4977bab6 ZW |
3685 | { |
3686 | /* Disallow indirect through a virtual register. This leads to | |
3687 | compiler aborts when trying to eliminate them. */ | |
3688 | if (GET_CODE (op) == REG | |
3689 | && (op == arg_pointer_rtx | |
3690 | || op == frame_pointer_rtx | |
3691 | || (REGNO (op) >= FIRST_PSEUDO_REGISTER | |
3692 | && REGNO (op) <= LAST_VIRTUAL_REGISTER))) | |
3693 | return 0; | |
3694 | ||
3695 | /* Explicitly allow SYMBOL_REF even if pic. */ | |
3696 | if (GET_CODE (op) == SYMBOL_REF) | |
3697 | return 1; | |
3698 | ||
3699 | /* Otherwise we can only allow register operands. */ | |
3700 | return register_operand (op, Pmode); | |
3701 | } | |
3702 | ||
e075ae69 | 3703 | int |
b96a374d | 3704 | constant_call_address_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
e075ae69 | 3705 | { |
eaf19aba JJ |
3706 | if (GET_CODE (op) == CONST |
3707 | && GET_CODE (XEXP (op, 0)) == PLUS | |
3708 | && GET_CODE (XEXP (XEXP (op, 0), 1)) == CONST_INT) | |
3709 | op = XEXP (XEXP (op, 0), 0); | |
e1ff012c | 3710 | return GET_CODE (op) == SYMBOL_REF; |
e075ae69 | 3711 | } |
2a2ab3f9 | 3712 | |
e075ae69 | 3713 | /* Match exactly zero and one. */ |
e9a25f70 | 3714 | |
0f290768 | 3715 | int |
8d531ab9 | 3716 | const0_operand (rtx op, enum machine_mode mode) |
e075ae69 RH |
3717 | { |
3718 | return op == CONST0_RTX (mode); | |
3719 | } | |
e9a25f70 | 3720 | |
0f290768 | 3721 | int |
8d531ab9 | 3722 | const1_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
e075ae69 RH |
3723 | { |
3724 | return op == const1_rtx; | |
3725 | } | |
2a2ab3f9 | 3726 | |
e075ae69 | 3727 | /* Match 2, 4, or 8. Used for leal multiplicands. */ |
e9a25f70 | 3728 | |
e075ae69 | 3729 | int |
8d531ab9 | 3730 | const248_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
e075ae69 RH |
3731 | { |
3732 | return (GET_CODE (op) == CONST_INT | |
3733 | && (INTVAL (op) == 2 || INTVAL (op) == 4 || INTVAL (op) == 8)); | |
3734 | } | |
e9a25f70 | 3735 | |
ebe75517 | 3736 | int |
8d531ab9 | 3737 | const_0_to_3_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
ebe75517 JH |
3738 | { |
3739 | return (GET_CODE (op) == CONST_INT && INTVAL (op) >= 0 && INTVAL (op) < 4); | |
3740 | } | |
3741 | ||
3742 | int | |
8d531ab9 | 3743 | const_0_to_7_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
ebe75517 JH |
3744 | { |
3745 | return (GET_CODE (op) == CONST_INT && INTVAL (op) >= 0 && INTVAL (op) < 8); | |
3746 | } | |
3747 | ||
3748 | int | |
8d531ab9 | 3749 | const_0_to_15_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
ebe75517 JH |
3750 | { |
3751 | return (GET_CODE (op) == CONST_INT && INTVAL (op) >= 0 && INTVAL (op) < 16); | |
3752 | } | |
3753 | ||
3754 | int | |
8d531ab9 | 3755 | const_0_to_255_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
ebe75517 JH |
3756 | { |
3757 | return (GET_CODE (op) == CONST_INT && INTVAL (op) >= 0 && INTVAL (op) < 256); | |
3758 | } | |
3759 | ||
3760 | ||
d1f87653 | 3761 | /* True if this is a constant appropriate for an increment or decrement. */ |
81fd0956 | 3762 | |
e075ae69 | 3763 | int |
8d531ab9 | 3764 | incdec_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
e075ae69 | 3765 | { |
f5143c46 | 3766 | /* On Pentium4, the inc and dec operations causes extra dependency on flag |
b4e89e2d JH |
3767 | registers, since carry flag is not set. */ |
3768 | if (TARGET_PENTIUM4 && !optimize_size) | |
3769 | return 0; | |
2b1c08f5 | 3770 | return op == const1_rtx || op == constm1_rtx; |
e075ae69 | 3771 | } |
2a2ab3f9 | 3772 | |
371bc54b JH |
3773 | /* Return nonzero if OP is acceptable as operand of DImode shift |
3774 | expander. */ | |
3775 | ||
3776 | int | |
b96a374d | 3777 | shiftdi_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
371bc54b JH |
3778 | { |
3779 | if (TARGET_64BIT) | |
3780 | return nonimmediate_operand (op, mode); | |
3781 | else | |
3782 | return register_operand (op, mode); | |
3783 | } | |
3784 | ||
0f290768 | 3785 | /* Return false if this is the stack pointer, or any other fake |
e075ae69 RH |
3786 | register eliminable to the stack pointer. Otherwise, this is |
3787 | a register operand. | |
2a2ab3f9 | 3788 | |
e075ae69 RH |
3789 | This is used to prevent esp from being used as an index reg. |
3790 | Which would only happen in pathological cases. */ | |
5f1ec3e6 | 3791 | |
e075ae69 | 3792 | int |
8d531ab9 | 3793 | reg_no_sp_operand (rtx op, enum machine_mode mode) |
e075ae69 RH |
3794 | { |
3795 | rtx t = op; | |
3796 | if (GET_CODE (t) == SUBREG) | |
3797 | t = SUBREG_REG (t); | |
564d80f4 | 3798 | if (t == stack_pointer_rtx || t == arg_pointer_rtx || t == frame_pointer_rtx) |
e075ae69 | 3799 | return 0; |
2a2ab3f9 | 3800 | |
e075ae69 | 3801 | return register_operand (op, mode); |
2a2ab3f9 | 3802 | } |
b840bfb0 | 3803 | |
915119a5 | 3804 | int |
8d531ab9 | 3805 | mmx_reg_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
915119a5 BS |
3806 | { |
3807 | return MMX_REG_P (op); | |
3808 | } | |
3809 | ||
2c5a510c RH |
3810 | /* Return false if this is any eliminable register. Otherwise |
3811 | general_operand. */ | |
3812 | ||
3813 | int | |
8d531ab9 | 3814 | general_no_elim_operand (rtx op, enum machine_mode mode) |
2c5a510c RH |
3815 | { |
3816 | rtx t = op; | |
3817 | if (GET_CODE (t) == SUBREG) | |
3818 | t = SUBREG_REG (t); | |
3819 | if (t == arg_pointer_rtx || t == frame_pointer_rtx | |
3820 | || t == virtual_incoming_args_rtx || t == virtual_stack_vars_rtx | |
3821 | || t == virtual_stack_dynamic_rtx) | |
3822 | return 0; | |
1020a5ab RH |
3823 | if (REG_P (t) |
3824 | && REGNO (t) >= FIRST_VIRTUAL_REGISTER | |
3825 | && REGNO (t) <= LAST_VIRTUAL_REGISTER) | |
3826 | return 0; | |
2c5a510c RH |
3827 | |
3828 | return general_operand (op, mode); | |
3829 | } | |
3830 | ||
3831 | /* Return false if this is any eliminable register. Otherwise | |
3832 | register_operand or const_int. */ | |
3833 | ||
3834 | int | |
8d531ab9 | 3835 | nonmemory_no_elim_operand (rtx op, enum machine_mode mode) |
2c5a510c RH |
3836 | { |
3837 | rtx t = op; | |
3838 | if (GET_CODE (t) == SUBREG) | |
3839 | t = SUBREG_REG (t); | |
3840 | if (t == arg_pointer_rtx || t == frame_pointer_rtx | |
3841 | || t == virtual_incoming_args_rtx || t == virtual_stack_vars_rtx | |
3842 | || t == virtual_stack_dynamic_rtx) | |
3843 | return 0; | |
3844 | ||
3845 | return GET_CODE (op) == CONST_INT || register_operand (op, mode); | |
3846 | } | |
3847 | ||
7ec70495 JH |
3848 | /* Return false if this is any eliminable register or stack register, |
3849 | otherwise work like register_operand. */ | |
3850 | ||
3851 | int | |
8d531ab9 | 3852 | index_register_operand (rtx op, enum machine_mode mode) |
7ec70495 JH |
3853 | { |
3854 | rtx t = op; | |
3855 | if (GET_CODE (t) == SUBREG) | |
3856 | t = SUBREG_REG (t); | |
3857 | if (!REG_P (t)) | |
3858 | return 0; | |
3859 | if (t == arg_pointer_rtx | |
3860 | || t == frame_pointer_rtx | |
3861 | || t == virtual_incoming_args_rtx | |
3862 | || t == virtual_stack_vars_rtx | |
3863 | || t == virtual_stack_dynamic_rtx | |
3864 | || REGNO (t) == STACK_POINTER_REGNUM) | |
3865 | return 0; | |
3866 | ||
3867 | return general_operand (op, mode); | |
3868 | } | |
3869 | ||
e075ae69 | 3870 | /* Return true if op is a Q_REGS class register. */ |
b840bfb0 | 3871 | |
e075ae69 | 3872 | int |
8d531ab9 | 3873 | q_regs_operand (rtx op, enum machine_mode mode) |
b840bfb0 | 3874 | { |
e075ae69 RH |
3875 | if (mode != VOIDmode && GET_MODE (op) != mode) |
3876 | return 0; | |
3877 | if (GET_CODE (op) == SUBREG) | |
3878 | op = SUBREG_REG (op); | |
7799175f | 3879 | return ANY_QI_REG_P (op); |
0f290768 | 3880 | } |
b840bfb0 | 3881 | |
4977bab6 ZW |
3882 | /* Return true if op is an flags register. */ |
3883 | ||
3884 | int | |
8d531ab9 | 3885 | flags_reg_operand (rtx op, enum machine_mode mode) |
4977bab6 ZW |
3886 | { |
3887 | if (mode != VOIDmode && GET_MODE (op) != mode) | |
3888 | return 0; | |
3889 | return REG_P (op) && REGNO (op) == FLAGS_REG && GET_MODE (op) != VOIDmode; | |
3890 | } | |
3891 | ||
e075ae69 | 3892 | /* Return true if op is a NON_Q_REGS class register. */ |
b840bfb0 | 3893 | |
e075ae69 | 3894 | int |
8d531ab9 | 3895 | non_q_regs_operand (rtx op, enum machine_mode mode) |
e075ae69 RH |
3896 | { |
3897 | if (mode != VOIDmode && GET_MODE (op) != mode) | |
3898 | return 0; | |
3899 | if (GET_CODE (op) == SUBREG) | |
3900 | op = SUBREG_REG (op); | |
3901 | return NON_QI_REG_P (op); | |
0f290768 | 3902 | } |
b840bfb0 | 3903 | |
4977bab6 | 3904 | int |
b96a374d AJ |
3905 | zero_extended_scalar_load_operand (rtx op, |
3906 | enum machine_mode mode ATTRIBUTE_UNUSED) | |
4977bab6 ZW |
3907 | { |
3908 | unsigned n_elts; | |
3909 | if (GET_CODE (op) != MEM) | |
3910 | return 0; | |
3911 | op = maybe_get_pool_constant (op); | |
3912 | if (!op) | |
3913 | return 0; | |
3914 | if (GET_CODE (op) != CONST_VECTOR) | |
3915 | return 0; | |
3916 | n_elts = | |
3917 | (GET_MODE_SIZE (GET_MODE (op)) / | |
3918 | GET_MODE_SIZE (GET_MODE_INNER (GET_MODE (op)))); | |
3919 | for (n_elts--; n_elts > 0; n_elts--) | |
3920 | { | |
3921 | rtx elt = CONST_VECTOR_ELT (op, n_elts); | |
3922 | if (elt != CONST0_RTX (GET_MODE_INNER (GET_MODE (op)))) | |
3923 | return 0; | |
3924 | } | |
3925 | return 1; | |
3926 | } | |
3927 | ||
fdc4b40b JH |
3928 | /* Return 1 when OP is operand acceptable for standard SSE move. */ |
3929 | int | |
b96a374d | 3930 | vector_move_operand (rtx op, enum machine_mode mode) |
fdc4b40b JH |
3931 | { |
3932 | if (nonimmediate_operand (op, mode)) | |
3933 | return 1; | |
3934 | if (GET_MODE (op) != mode && mode != VOIDmode) | |
3935 | return 0; | |
3936 | return (op == CONST0_RTX (GET_MODE (op))); | |
3937 | } | |
3938 | ||
74dc3e94 RH |
3939 | /* Return true if op if a valid address, and does not contain |
3940 | a segment override. */ | |
3941 | ||
3942 | int | |
8d531ab9 | 3943 | no_seg_address_operand (rtx op, enum machine_mode mode) |
74dc3e94 RH |
3944 | { |
3945 | struct ix86_address parts; | |
3946 | ||
3947 | if (! address_operand (op, mode)) | |
3948 | return 0; | |
3949 | ||
3950 | if (! ix86_decompose_address (op, &parts)) | |
3951 | abort (); | |
3952 | ||
3953 | return parts.seg == SEG_DEFAULT; | |
3954 | } | |
3955 | ||
915119a5 BS |
3956 | /* Return 1 if OP is a comparison that can be used in the CMPSS/CMPPS |
3957 | insns. */ | |
3958 | int | |
b96a374d | 3959 | sse_comparison_operator (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
915119a5 BS |
3960 | { |
3961 | enum rtx_code code = GET_CODE (op); | |
a46d1d38 JH |
3962 | switch (code) |
3963 | { | |
3964 | /* Operations supported directly. */ | |
3965 | case EQ: | |
3966 | case LT: | |
3967 | case LE: | |
3968 | case UNORDERED: | |
3969 | case NE: | |
3970 | case UNGE: | |
3971 | case UNGT: | |
3972 | case ORDERED: | |
3973 | return 1; | |
3974 | /* These are equivalent to ones above in non-IEEE comparisons. */ | |
3975 | case UNEQ: | |
3976 | case UNLT: | |
3977 | case UNLE: | |
3978 | case LTGT: | |
3979 | case GE: | |
3980 | case GT: | |
3981 | return !TARGET_IEEE_FP; | |
3982 | default: | |
3983 | return 0; | |
3984 | } | |
915119a5 | 3985 | } |
9076b9c1 | 3986 | /* Return 1 if OP is a valid comparison operator in valid mode. */ |
e075ae69 | 3987 | int |
8d531ab9 | 3988 | ix86_comparison_operator (rtx op, enum machine_mode mode) |
e075ae69 | 3989 | { |
9076b9c1 | 3990 | enum machine_mode inmode; |
9a915772 | 3991 | enum rtx_code code = GET_CODE (op); |
3a3677ff RH |
3992 | if (mode != VOIDmode && GET_MODE (op) != mode) |
3993 | return 0; | |
9a915772 JH |
3994 | if (GET_RTX_CLASS (code) != '<') |
3995 | return 0; | |
3996 | inmode = GET_MODE (XEXP (op, 0)); | |
3997 | ||
3998 | if (inmode == CCFPmode || inmode == CCFPUmode) | |
3999 | { | |
4000 | enum rtx_code second_code, bypass_code; | |
4001 | ix86_fp_comparison_codes (code, &bypass_code, &code, &second_code); | |
4002 | return (bypass_code == NIL && second_code == NIL); | |
4003 | } | |
4004 | switch (code) | |
3a3677ff RH |
4005 | { |
4006 | case EQ: case NE: | |
3a3677ff | 4007 | return 1; |
9076b9c1 | 4008 | case LT: case GE: |
7e08e190 | 4009 | if (inmode == CCmode || inmode == CCGCmode |
9076b9c1 JH |
4010 | || inmode == CCGOCmode || inmode == CCNOmode) |
4011 | return 1; | |
4012 | return 0; | |
7e08e190 | 4013 | case LTU: case GTU: case LEU: case ORDERED: case UNORDERED: case GEU: |
7e08e190 | 4014 | if (inmode == CCmode) |
9076b9c1 JH |
4015 | return 1; |
4016 | return 0; | |
4017 | case GT: case LE: | |
7e08e190 | 4018 | if (inmode == CCmode || inmode == CCGCmode || inmode == CCNOmode) |
9076b9c1 JH |
4019 | return 1; |
4020 | return 0; | |
3a3677ff RH |
4021 | default: |
4022 | return 0; | |
4023 | } | |
4024 | } | |
4025 | ||
e6e81735 JH |
4026 | /* Return 1 if OP is a valid comparison operator testing carry flag |
4027 | to be set. */ | |
4028 | int | |
8d531ab9 | 4029 | ix86_carry_flag_operator (rtx op, enum machine_mode mode) |
e6e81735 JH |
4030 | { |
4031 | enum machine_mode inmode; | |
4032 | enum rtx_code code = GET_CODE (op); | |
4033 | ||
4034 | if (mode != VOIDmode && GET_MODE (op) != mode) | |
4035 | return 0; | |
4036 | if (GET_RTX_CLASS (code) != '<') | |
4037 | return 0; | |
4038 | inmode = GET_MODE (XEXP (op, 0)); | |
4039 | if (GET_CODE (XEXP (op, 0)) != REG | |
4040 | || REGNO (XEXP (op, 0)) != 17 | |
4041 | || XEXP (op, 1) != const0_rtx) | |
4042 | return 0; | |
4043 | ||
4044 | if (inmode == CCFPmode || inmode == CCFPUmode) | |
4045 | { | |
4046 | enum rtx_code second_code, bypass_code; | |
4047 | ||
4048 | ix86_fp_comparison_codes (code, &bypass_code, &code, &second_code); | |
4049 | if (bypass_code != NIL || second_code != NIL) | |
4050 | return 0; | |
4051 | code = ix86_fp_compare_code_to_integer (code); | |
4052 | } | |
4053 | else if (inmode != CCmode) | |
4054 | return 0; | |
4055 | return code == LTU; | |
4056 | } | |
4057 | ||
9076b9c1 | 4058 | /* Return 1 if OP is a comparison operator that can be issued by fcmov. */ |
3a3677ff | 4059 | |
9076b9c1 | 4060 | int |
8d531ab9 | 4061 | fcmov_comparison_operator (rtx op, enum machine_mode mode) |
3a3677ff | 4062 | { |
b62d22a2 | 4063 | enum machine_mode inmode; |
9a915772 | 4064 | enum rtx_code code = GET_CODE (op); |
e6e81735 | 4065 | |
3a3677ff RH |
4066 | if (mode != VOIDmode && GET_MODE (op) != mode) |
4067 | return 0; | |
9a915772 JH |
4068 | if (GET_RTX_CLASS (code) != '<') |
4069 | return 0; | |
4070 | inmode = GET_MODE (XEXP (op, 0)); | |
4071 | if (inmode == CCFPmode || inmode == CCFPUmode) | |
3a3677ff | 4072 | { |
9a915772 | 4073 | enum rtx_code second_code, bypass_code; |
e6e81735 | 4074 | |
9a915772 JH |
4075 | ix86_fp_comparison_codes (code, &bypass_code, &code, &second_code); |
4076 | if (bypass_code != NIL || second_code != NIL) | |
4077 | return 0; | |
4078 | code = ix86_fp_compare_code_to_integer (code); | |
4079 | } | |
4080 | /* i387 supports just limited amount of conditional codes. */ | |
4081 | switch (code) | |
4082 | { | |
4083 | case LTU: case GTU: case LEU: case GEU: | |
4084 | if (inmode == CCmode || inmode == CCFPmode || inmode == CCFPUmode) | |
9076b9c1 JH |
4085 | return 1; |
4086 | return 0; | |
9a915772 JH |
4087 | case ORDERED: case UNORDERED: |
4088 | case EQ: case NE: | |
4089 | return 1; | |
3a3677ff RH |
4090 | default: |
4091 | return 0; | |
4092 | } | |
e075ae69 | 4093 | } |
b840bfb0 | 4094 | |
e9e80858 JH |
4095 | /* Return 1 if OP is a binary operator that can be promoted to wider mode. */ |
4096 | ||
4097 | int | |
8d531ab9 | 4098 | promotable_binary_operator (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
e9e80858 JH |
4099 | { |
4100 | switch (GET_CODE (op)) | |
4101 | { | |
4102 | case MULT: | |
4103 | /* Modern CPUs have same latency for HImode and SImode multiply, | |
4104 | but 386 and 486 do HImode multiply faster. */ | |
9e555526 | 4105 | return ix86_tune > PROCESSOR_I486; |
e9e80858 JH |
4106 | case PLUS: |
4107 | case AND: | |
4108 | case IOR: | |
4109 | case XOR: | |
4110 | case ASHIFT: | |
4111 | return 1; | |
4112 | default: | |
4113 | return 0; | |
4114 | } | |
4115 | } | |
4116 | ||
e075ae69 RH |
4117 | /* Nearly general operand, but accept any const_double, since we wish |
4118 | to be able to drop them into memory rather than have them get pulled | |
4119 | into registers. */ | |
b840bfb0 | 4120 | |
2a2ab3f9 | 4121 | int |
8d531ab9 | 4122 | cmp_fp_expander_operand (rtx op, enum machine_mode mode) |
2a2ab3f9 | 4123 | { |
e075ae69 | 4124 | if (mode != VOIDmode && mode != GET_MODE (op)) |
0b6b2900 | 4125 | return 0; |
e075ae69 | 4126 | if (GET_CODE (op) == CONST_DOUBLE) |
2a2ab3f9 | 4127 | return 1; |
e075ae69 | 4128 | return general_operand (op, mode); |
2a2ab3f9 JVA |
4129 | } |
4130 | ||
e075ae69 | 4131 | /* Match an SI or HImode register for a zero_extract. */ |
2a2ab3f9 JVA |
4132 | |
4133 | int | |
8d531ab9 | 4134 | ext_register_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
2a2ab3f9 | 4135 | { |
3522082b | 4136 | int regno; |
0d7d98ee JH |
4137 | if ((!TARGET_64BIT || GET_MODE (op) != DImode) |
4138 | && GET_MODE (op) != SImode && GET_MODE (op) != HImode) | |
e075ae69 | 4139 | return 0; |
3522082b JH |
4140 | |
4141 | if (!register_operand (op, VOIDmode)) | |
4142 | return 0; | |
4143 | ||
d1f87653 | 4144 | /* Be careful to accept only registers having upper parts. */ |
3522082b JH |
4145 | regno = REG_P (op) ? REGNO (op) : REGNO (SUBREG_REG (op)); |
4146 | return (regno > LAST_VIRTUAL_REGISTER || regno < 4); | |
e075ae69 RH |
4147 | } |
4148 | ||
4149 | /* Return 1 if this is a valid binary floating-point operation. | |
0f290768 | 4150 | OP is the expression matched, and MODE is its mode. */ |
e075ae69 RH |
4151 | |
4152 | int | |
8d531ab9 | 4153 | binary_fp_operator (rtx op, enum machine_mode mode) |
e075ae69 RH |
4154 | { |
4155 | if (mode != VOIDmode && mode != GET_MODE (op)) | |
4156 | return 0; | |
4157 | ||
2a2ab3f9 JVA |
4158 | switch (GET_CODE (op)) |
4159 | { | |
e075ae69 RH |
4160 | case PLUS: |
4161 | case MINUS: | |
4162 | case MULT: | |
4163 | case DIV: | |
4164 | return GET_MODE_CLASS (GET_MODE (op)) == MODE_FLOAT; | |
e9a25f70 | 4165 | |
2a2ab3f9 JVA |
4166 | default: |
4167 | return 0; | |
4168 | } | |
4169 | } | |
fee2770d | 4170 | |
e075ae69 | 4171 | int |
8d531ab9 | 4172 | mult_operator (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
e075ae69 RH |
4173 | { |
4174 | return GET_CODE (op) == MULT; | |
4175 | } | |
4176 | ||
4177 | int | |
8d531ab9 | 4178 | div_operator (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
e075ae69 RH |
4179 | { |
4180 | return GET_CODE (op) == DIV; | |
4181 | } | |
0a726ef1 JL |
4182 | |
4183 | int | |
b96a374d | 4184 | arith_or_logical_operator (rtx op, enum machine_mode mode) |
0a726ef1 | 4185 | { |
e075ae69 RH |
4186 | return ((mode == VOIDmode || GET_MODE (op) == mode) |
4187 | && (GET_RTX_CLASS (GET_CODE (op)) == 'c' | |
4188 | || GET_RTX_CLASS (GET_CODE (op)) == '2')); | |
0a726ef1 JL |
4189 | } |
4190 | ||
e075ae69 | 4191 | /* Returns 1 if OP is memory operand with a displacement. */ |
fee2770d RS |
4192 | |
4193 | int | |
8d531ab9 | 4194 | memory_displacement_operand (rtx op, enum machine_mode mode) |
4f2c8ebb | 4195 | { |
e075ae69 | 4196 | struct ix86_address parts; |
e9a25f70 | 4197 | |
e075ae69 RH |
4198 | if (! memory_operand (op, mode)) |
4199 | return 0; | |
4200 | ||
4201 | if (! ix86_decompose_address (XEXP (op, 0), &parts)) | |
4202 | abort (); | |
4203 | ||
4204 | return parts.disp != NULL_RTX; | |
4f2c8ebb RS |
4205 | } |
4206 | ||
16189740 | 4207 | /* To avoid problems when jump re-emits comparisons like testqi_ext_ccno_0, |
e075ae69 RH |
4208 | re-recognize the operand to avoid a copy_to_mode_reg that will fail. |
4209 | ||
4210 | ??? It seems likely that this will only work because cmpsi is an | |
4211 | expander, and no actual insns use this. */ | |
4f2c8ebb RS |
4212 | |
4213 | int | |
b96a374d | 4214 | cmpsi_operand (rtx op, enum machine_mode mode) |
fee2770d | 4215 | { |
b9b2c339 | 4216 | if (nonimmediate_operand (op, mode)) |
e075ae69 RH |
4217 | return 1; |
4218 | ||
4219 | if (GET_CODE (op) == AND | |
4220 | && GET_MODE (op) == SImode | |
4221 | && GET_CODE (XEXP (op, 0)) == ZERO_EXTRACT | |
4222 | && GET_CODE (XEXP (XEXP (op, 0), 1)) == CONST_INT | |
4223 | && GET_CODE (XEXP (XEXP (op, 0), 2)) == CONST_INT | |
4224 | && INTVAL (XEXP (XEXP (op, 0), 1)) == 8 | |
4225 | && INTVAL (XEXP (XEXP (op, 0), 2)) == 8 | |
4226 | && GET_CODE (XEXP (op, 1)) == CONST_INT) | |
fee2770d | 4227 | return 1; |
e9a25f70 | 4228 | |
fee2770d RS |
4229 | return 0; |
4230 | } | |
d784886d | 4231 | |
e075ae69 RH |
4232 | /* Returns 1 if OP is memory operand that can not be represented by the |
4233 | modRM array. */ | |
d784886d RK |
4234 | |
4235 | int | |
8d531ab9 | 4236 | long_memory_operand (rtx op, enum machine_mode mode) |
d784886d | 4237 | { |
e075ae69 | 4238 | if (! memory_operand (op, mode)) |
d784886d RK |
4239 | return 0; |
4240 | ||
e075ae69 | 4241 | return memory_address_length (op) != 0; |
d784886d | 4242 | } |
2247f6ed JH |
4243 | |
4244 | /* Return nonzero if the rtx is known aligned. */ | |
4245 | ||
4246 | int | |
b96a374d | 4247 | aligned_operand (rtx op, enum machine_mode mode) |
2247f6ed JH |
4248 | { |
4249 | struct ix86_address parts; | |
4250 | ||
4251 | if (!general_operand (op, mode)) | |
4252 | return 0; | |
4253 | ||
0f290768 | 4254 | /* Registers and immediate operands are always "aligned". */ |
2247f6ed JH |
4255 | if (GET_CODE (op) != MEM) |
4256 | return 1; | |
4257 | ||
0f290768 | 4258 | /* Don't even try to do any aligned optimizations with volatiles. */ |
2247f6ed JH |
4259 | if (MEM_VOLATILE_P (op)) |
4260 | return 0; | |
4261 | ||
4262 | op = XEXP (op, 0); | |
4263 | ||
4264 | /* Pushes and pops are only valid on the stack pointer. */ | |
4265 | if (GET_CODE (op) == PRE_DEC | |
4266 | || GET_CODE (op) == POST_INC) | |
4267 | return 1; | |
4268 | ||
4269 | /* Decode the address. */ | |
4270 | if (! ix86_decompose_address (op, &parts)) | |
4271 | abort (); | |
4272 | ||
4273 | /* Look for some component that isn't known to be aligned. */ | |
4274 | if (parts.index) | |
4275 | { | |
4276 | if (parts.scale < 4 | |
bdb429a5 | 4277 | && REGNO_POINTER_ALIGN (REGNO (parts.index)) < 32) |
2247f6ed JH |
4278 | return 0; |
4279 | } | |
4280 | if (parts.base) | |
4281 | { | |
bdb429a5 | 4282 | if (REGNO_POINTER_ALIGN (REGNO (parts.base)) < 32) |
2247f6ed JH |
4283 | return 0; |
4284 | } | |
4285 | if (parts.disp) | |
4286 | { | |
4287 | if (GET_CODE (parts.disp) != CONST_INT | |
4288 | || (INTVAL (parts.disp) & 3) != 0) | |
4289 | return 0; | |
4290 | } | |
4291 | ||
4292 | /* Didn't find one -- this must be an aligned address. */ | |
4293 | return 1; | |
4294 | } | |
e075ae69 | 4295 | \f |
881b2a96 RS |
4296 | /* Initialize the table of extra 80387 mathematical constants. */ |
4297 | ||
4298 | static void | |
b96a374d | 4299 | init_ext_80387_constants (void) |
881b2a96 RS |
4300 | { |
4301 | static const char * cst[5] = | |
4302 | { | |
4303 | "0.3010299956639811952256464283594894482", /* 0: fldlg2 */ | |
4304 | "0.6931471805599453094286904741849753009", /* 1: fldln2 */ | |
4305 | "1.4426950408889634073876517827983434472", /* 2: fldl2e */ | |
4306 | "3.3219280948873623478083405569094566090", /* 3: fldl2t */ | |
4307 | "3.1415926535897932385128089594061862044", /* 4: fldpi */ | |
4308 | }; | |
4309 | int i; | |
4310 | ||
4311 | for (i = 0; i < 5; i++) | |
4312 | { | |
4313 | real_from_string (&ext_80387_constants_table[i], cst[i]); | |
4314 | /* Ensure each constant is rounded to XFmode precision. */ | |
1f48e56d | 4315 | real_convert (&ext_80387_constants_table[i], |
f8a1ebc6 | 4316 | XFmode, &ext_80387_constants_table[i]); |
881b2a96 RS |
4317 | } |
4318 | ||
4319 | ext_80387_constants_init = 1; | |
4320 | } | |
4321 | ||
e075ae69 | 4322 | /* Return true if the constant is something that can be loaded with |
881b2a96 | 4323 | a special instruction. */ |
57dbca5e BS |
4324 | |
4325 | int | |
b96a374d | 4326 | standard_80387_constant_p (rtx x) |
57dbca5e | 4327 | { |
2b04e52b | 4328 | if (GET_CODE (x) != CONST_DOUBLE || !FLOAT_MODE_P (GET_MODE (x))) |
e075ae69 | 4329 | return -1; |
881b2a96 | 4330 | |
2b04e52b JH |
4331 | if (x == CONST0_RTX (GET_MODE (x))) |
4332 | return 1; | |
4333 | if (x == CONST1_RTX (GET_MODE (x))) | |
4334 | return 2; | |
881b2a96 | 4335 | |
22cc69c4 RS |
4336 | /* For XFmode constants, try to find a special 80387 instruction when |
4337 | optimizing for size or on those CPUs that benefit from them. */ | |
f8a1ebc6 | 4338 | if (GET_MODE (x) == XFmode |
22cc69c4 | 4339 | && (optimize_size || x86_ext_80387_constants & TUNEMASK)) |
881b2a96 RS |
4340 | { |
4341 | REAL_VALUE_TYPE r; | |
4342 | int i; | |
4343 | ||
4344 | if (! ext_80387_constants_init) | |
4345 | init_ext_80387_constants (); | |
4346 | ||
4347 | REAL_VALUE_FROM_CONST_DOUBLE (r, x); | |
4348 | for (i = 0; i < 5; i++) | |
4349 | if (real_identical (&r, &ext_80387_constants_table[i])) | |
4350 | return i + 3; | |
4351 | } | |
4352 | ||
e075ae69 | 4353 | return 0; |
57dbca5e BS |
4354 | } |
4355 | ||
881b2a96 RS |
4356 | /* Return the opcode of the special instruction to be used to load |
4357 | the constant X. */ | |
4358 | ||
4359 | const char * | |
b96a374d | 4360 | standard_80387_constant_opcode (rtx x) |
881b2a96 RS |
4361 | { |
4362 | switch (standard_80387_constant_p (x)) | |
4363 | { | |
b96a374d | 4364 | case 1: |
881b2a96 RS |
4365 | return "fldz"; |
4366 | case 2: | |
4367 | return "fld1"; | |
b96a374d | 4368 | case 3: |
881b2a96 RS |
4369 | return "fldlg2"; |
4370 | case 4: | |
4371 | return "fldln2"; | |
b96a374d | 4372 | case 5: |
881b2a96 RS |
4373 | return "fldl2e"; |
4374 | case 6: | |
4375 | return "fldl2t"; | |
b96a374d | 4376 | case 7: |
881b2a96 RS |
4377 | return "fldpi"; |
4378 | } | |
4379 | abort (); | |
4380 | } | |
4381 | ||
4382 | /* Return the CONST_DOUBLE representing the 80387 constant that is | |
4383 | loaded by the specified special instruction. The argument IDX | |
4384 | matches the return value from standard_80387_constant_p. */ | |
4385 | ||
4386 | rtx | |
b96a374d | 4387 | standard_80387_constant_rtx (int idx) |
881b2a96 RS |
4388 | { |
4389 | int i; | |
4390 | ||
4391 | if (! ext_80387_constants_init) | |
4392 | init_ext_80387_constants (); | |
4393 | ||
4394 | switch (idx) | |
4395 | { | |
4396 | case 3: | |
4397 | case 4: | |
4398 | case 5: | |
4399 | case 6: | |
4400 | case 7: | |
4401 | i = idx - 3; | |
4402 | break; | |
4403 | ||
4404 | default: | |
4405 | abort (); | |
4406 | } | |
4407 | ||
1f48e56d | 4408 | return CONST_DOUBLE_FROM_REAL_VALUE (ext_80387_constants_table[i], |
f8a1ebc6 | 4409 | XFmode); |
881b2a96 RS |
4410 | } |
4411 | ||
2b04e52b JH |
4412 | /* Return 1 if X is FP constant we can load to SSE register w/o using memory. |
4413 | */ | |
4414 | int | |
b96a374d | 4415 | standard_sse_constant_p (rtx x) |
2b04e52b | 4416 | { |
0e67d460 JH |
4417 | if (x == const0_rtx) |
4418 | return 1; | |
2b04e52b JH |
4419 | return (x == CONST0_RTX (GET_MODE (x))); |
4420 | } | |
4421 | ||
2a2ab3f9 JVA |
4422 | /* Returns 1 if OP contains a symbol reference */ |
4423 | ||
4424 | int | |
b96a374d | 4425 | symbolic_reference_mentioned_p (rtx op) |
2a2ab3f9 | 4426 | { |
8d531ab9 KH |
4427 | const char *fmt; |
4428 | int i; | |
2a2ab3f9 JVA |
4429 | |
4430 | if (GET_CODE (op) == SYMBOL_REF || GET_CODE (op) == LABEL_REF) | |
4431 | return 1; | |
4432 | ||
4433 | fmt = GET_RTX_FORMAT (GET_CODE (op)); | |
4434 | for (i = GET_RTX_LENGTH (GET_CODE (op)) - 1; i >= 0; i--) | |
4435 | { | |
4436 | if (fmt[i] == 'E') | |
4437 | { | |
8d531ab9 | 4438 | int j; |
2a2ab3f9 JVA |
4439 | |
4440 | for (j = XVECLEN (op, i) - 1; j >= 0; j--) | |
4441 | if (symbolic_reference_mentioned_p (XVECEXP (op, i, j))) | |
4442 | return 1; | |
4443 | } | |
e9a25f70 | 4444 | |
2a2ab3f9 JVA |
4445 | else if (fmt[i] == 'e' && symbolic_reference_mentioned_p (XEXP (op, i))) |
4446 | return 1; | |
4447 | } | |
4448 | ||
4449 | return 0; | |
4450 | } | |
e075ae69 RH |
4451 | |
4452 | /* Return 1 if it is appropriate to emit `ret' instructions in the | |
4453 | body of a function. Do this only if the epilogue is simple, needing a | |
4454 | couple of insns. Prior to reloading, we can't tell how many registers | |
4455 | must be saved, so return 0 then. Return 0 if there is no frame | |
4456 | marker to de-allocate. | |
4457 | ||
4458 | If NON_SAVING_SETJMP is defined and true, then it is not possible | |
4459 | for the epilogue to be simple, so return 0. This is a special case | |
4460 | since NON_SAVING_SETJMP will not cause regs_ever_live to change | |
4461 | until final, but jump_optimize may need to know sooner if a | |
4462 | `return' is OK. */ | |
32b5b1aa SC |
4463 | |
4464 | int | |
b96a374d | 4465 | ix86_can_use_return_insn_p (void) |
32b5b1aa | 4466 | { |
4dd2ac2c | 4467 | struct ix86_frame frame; |
9a7372d6 | 4468 | |
e075ae69 RH |
4469 | #ifdef NON_SAVING_SETJMP |
4470 | if (NON_SAVING_SETJMP && current_function_calls_setjmp) | |
4471 | return 0; | |
4472 | #endif | |
9a7372d6 RH |
4473 | |
4474 | if (! reload_completed || frame_pointer_needed) | |
4475 | return 0; | |
32b5b1aa | 4476 | |
9a7372d6 RH |
4477 | /* Don't allow more than 32 pop, since that's all we can do |
4478 | with one instruction. */ | |
4479 | if (current_function_pops_args | |
4480 | && current_function_args_size >= 32768) | |
e075ae69 | 4481 | return 0; |
32b5b1aa | 4482 | |
4dd2ac2c JH |
4483 | ix86_compute_frame_layout (&frame); |
4484 | return frame.to_allocate == 0 && frame.nregs == 0; | |
e075ae69 | 4485 | } |
6189a572 JH |
4486 | \f |
4487 | /* Return 1 if VALUE can be stored in the sign extended immediate field. */ | |
4488 | int | |
b96a374d | 4489 | x86_64_sign_extended_value (rtx value) |
6189a572 JH |
4490 | { |
4491 | switch (GET_CODE (value)) | |
4492 | { | |
4493 | /* CONST_DOUBLES never match, since HOST_BITS_PER_WIDE_INT is known | |
4494 | to be at least 32 and this all acceptable constants are | |
4495 | represented as CONST_INT. */ | |
4496 | case CONST_INT: | |
4497 | if (HOST_BITS_PER_WIDE_INT == 32) | |
4498 | return 1; | |
4499 | else | |
4500 | { | |
4501 | HOST_WIDE_INT val = trunc_int_for_mode (INTVAL (value), DImode); | |
fa9f36a1 | 4502 | return trunc_int_for_mode (val, SImode) == val; |
6189a572 JH |
4503 | } |
4504 | break; | |
4505 | ||
75d38379 JJ |
4506 | /* For certain code models, the symbolic references are known to fit. |
4507 | in CM_SMALL_PIC model we know it fits if it is local to the shared | |
4508 | library. Don't count TLS SYMBOL_REFs here, since they should fit | |
4509 | only if inside of UNSPEC handled below. */ | |
6189a572 | 4510 | case SYMBOL_REF: |
d7222e38 JH |
4511 | /* TLS symbols are not constant. */ |
4512 | if (tls_symbolic_operand (value, Pmode)) | |
4513 | return false; | |
c05dbe81 | 4514 | return (ix86_cmodel == CM_SMALL || ix86_cmodel == CM_KERNEL); |
6189a572 JH |
4515 | |
4516 | /* For certain code models, the code is near as well. */ | |
4517 | case LABEL_REF: | |
c05dbe81 JH |
4518 | return (ix86_cmodel == CM_SMALL || ix86_cmodel == CM_MEDIUM |
4519 | || ix86_cmodel == CM_KERNEL); | |
6189a572 JH |
4520 | |
4521 | /* We also may accept the offsetted memory references in certain special | |
4522 | cases. */ | |
4523 | case CONST: | |
75d38379 JJ |
4524 | if (GET_CODE (XEXP (value, 0)) == UNSPEC) |
4525 | switch (XINT (XEXP (value, 0), 1)) | |
4526 | { | |
4527 | case UNSPEC_GOTPCREL: | |
4528 | case UNSPEC_DTPOFF: | |
4529 | case UNSPEC_GOTNTPOFF: | |
4530 | case UNSPEC_NTPOFF: | |
4531 | return 1; | |
4532 | default: | |
4533 | break; | |
4534 | } | |
4535 | if (GET_CODE (XEXP (value, 0)) == PLUS) | |
6189a572 JH |
4536 | { |
4537 | rtx op1 = XEXP (XEXP (value, 0), 0); | |
4538 | rtx op2 = XEXP (XEXP (value, 0), 1); | |
4539 | HOST_WIDE_INT offset; | |
4540 | ||
4541 | if (ix86_cmodel == CM_LARGE) | |
4542 | return 0; | |
4543 | if (GET_CODE (op2) != CONST_INT) | |
4544 | return 0; | |
4545 | offset = trunc_int_for_mode (INTVAL (op2), DImode); | |
4546 | switch (GET_CODE (op1)) | |
4547 | { | |
4548 | case SYMBOL_REF: | |
75d38379 | 4549 | /* For CM_SMALL assume that latest object is 16MB before |
6189a572 JH |
4550 | end of 31bits boundary. We may also accept pretty |
4551 | large negative constants knowing that all objects are | |
4552 | in the positive half of address space. */ | |
4553 | if (ix86_cmodel == CM_SMALL | |
75d38379 | 4554 | && offset < 16*1024*1024 |
6189a572 JH |
4555 | && trunc_int_for_mode (offset, SImode) == offset) |
4556 | return 1; | |
4557 | /* For CM_KERNEL we know that all object resist in the | |
4558 | negative half of 32bits address space. We may not | |
4559 | accept negative offsets, since they may be just off | |
d6a7951f | 4560 | and we may accept pretty large positive ones. */ |
6189a572 JH |
4561 | if (ix86_cmodel == CM_KERNEL |
4562 | && offset > 0 | |
4563 | && trunc_int_for_mode (offset, SImode) == offset) | |
4564 | return 1; | |
4565 | break; | |
4566 | case LABEL_REF: | |
4567 | /* These conditions are similar to SYMBOL_REF ones, just the | |
4568 | constraints for code models differ. */ | |
c05dbe81 | 4569 | if ((ix86_cmodel == CM_SMALL || ix86_cmodel == CM_MEDIUM) |
75d38379 | 4570 | && offset < 16*1024*1024 |
6189a572 JH |
4571 | && trunc_int_for_mode (offset, SImode) == offset) |
4572 | return 1; | |
4573 | if (ix86_cmodel == CM_KERNEL | |
4574 | && offset > 0 | |
4575 | && trunc_int_for_mode (offset, SImode) == offset) | |
4576 | return 1; | |
4577 | break; | |
75d38379 JJ |
4578 | case UNSPEC: |
4579 | switch (XINT (op1, 1)) | |
4580 | { | |
4581 | case UNSPEC_DTPOFF: | |
4582 | case UNSPEC_NTPOFF: | |
4583 | if (offset > 0 | |
4584 | && trunc_int_for_mode (offset, SImode) == offset) | |
4585 | return 1; | |
4586 | } | |
4587 | break; | |
6189a572 JH |
4588 | default: |
4589 | return 0; | |
4590 | } | |
4591 | } | |
4592 | return 0; | |
4593 | default: | |
4594 | return 0; | |
4595 | } | |
4596 | } | |
4597 | ||
4598 | /* Return 1 if VALUE can be stored in the zero extended immediate field. */ | |
4599 | int | |
b96a374d | 4600 | x86_64_zero_extended_value (rtx value) |
6189a572 JH |
4601 | { |
4602 | switch (GET_CODE (value)) | |
4603 | { | |
4604 | case CONST_DOUBLE: | |
4605 | if (HOST_BITS_PER_WIDE_INT == 32) | |
4606 | return (GET_MODE (value) == VOIDmode | |
4607 | && !CONST_DOUBLE_HIGH (value)); | |
4608 | else | |
4609 | return 0; | |
4610 | case CONST_INT: | |
4611 | if (HOST_BITS_PER_WIDE_INT == 32) | |
4612 | return INTVAL (value) >= 0; | |
4613 | else | |
b531087a | 4614 | return !(INTVAL (value) & ~(HOST_WIDE_INT) 0xffffffff); |
6189a572 JH |
4615 | break; |
4616 | ||
4617 | /* For certain code models, the symbolic references are known to fit. */ | |
4618 | case SYMBOL_REF: | |
d7222e38 JH |
4619 | /* TLS symbols are not constant. */ |
4620 | if (tls_symbolic_operand (value, Pmode)) | |
4621 | return false; | |
6189a572 JH |
4622 | return ix86_cmodel == CM_SMALL; |
4623 | ||
4624 | /* For certain code models, the code is near as well. */ | |
4625 | case LABEL_REF: | |
4626 | return ix86_cmodel == CM_SMALL || ix86_cmodel == CM_MEDIUM; | |
4627 | ||
4628 | /* We also may accept the offsetted memory references in certain special | |
4629 | cases. */ | |
4630 | case CONST: | |
4631 | if (GET_CODE (XEXP (value, 0)) == PLUS) | |
4632 | { | |
4633 | rtx op1 = XEXP (XEXP (value, 0), 0); | |
4634 | rtx op2 = XEXP (XEXP (value, 0), 1); | |
4635 | ||
4636 | if (ix86_cmodel == CM_LARGE) | |
4637 | return 0; | |
4638 | switch (GET_CODE (op1)) | |
4639 | { | |
4640 | case SYMBOL_REF: | |
4641 | return 0; | |
d6a7951f | 4642 | /* For small code model we may accept pretty large positive |
6189a572 JH |
4643 | offsets, since one bit is available for free. Negative |
4644 | offsets are limited by the size of NULL pointer area | |
4645 | specified by the ABI. */ | |
4646 | if (ix86_cmodel == CM_SMALL | |
4647 | && GET_CODE (op2) == CONST_INT | |
4648 | && trunc_int_for_mode (INTVAL (op2), DImode) > -0x10000 | |
4649 | && (trunc_int_for_mode (INTVAL (op2), SImode) | |
4650 | == INTVAL (op2))) | |
4651 | return 1; | |
4652 | /* ??? For the kernel, we may accept adjustment of | |
4653 | -0x10000000, since we know that it will just convert | |
d6a7951f | 4654 | negative address space to positive, but perhaps this |
6189a572 JH |
4655 | is not worthwhile. */ |
4656 | break; | |
4657 | case LABEL_REF: | |
4658 | /* These conditions are similar to SYMBOL_REF ones, just the | |
4659 | constraints for code models differ. */ | |
4660 | if ((ix86_cmodel == CM_SMALL || ix86_cmodel == CM_MEDIUM) | |
4661 | && GET_CODE (op2) == CONST_INT | |
4662 | && trunc_int_for_mode (INTVAL (op2), DImode) > -0x10000 | |
4663 | && (trunc_int_for_mode (INTVAL (op2), SImode) | |
4664 | == INTVAL (op2))) | |
4665 | return 1; | |
4666 | break; | |
4667 | default: | |
4668 | return 0; | |
4669 | } | |
4670 | } | |
4671 | return 0; | |
4672 | default: | |
4673 | return 0; | |
4674 | } | |
4675 | } | |
6fca22eb RH |
4676 | |
4677 | /* Value should be nonzero if functions must have frame pointers. | |
4678 | Zero means the frame pointer need not be set up (and parms may | |
4679 | be accessed via the stack pointer) in functions that seem suitable. */ | |
4680 | ||
4681 | int | |
b96a374d | 4682 | ix86_frame_pointer_required (void) |
6fca22eb RH |
4683 | { |
4684 | /* If we accessed previous frames, then the generated code expects | |
4685 | to be able to access the saved ebp value in our frame. */ | |
4686 | if (cfun->machine->accesses_prev_frame) | |
4687 | return 1; | |
a4f31c00 | 4688 | |
6fca22eb RH |
4689 | /* Several x86 os'es need a frame pointer for other reasons, |
4690 | usually pertaining to setjmp. */ | |
4691 | if (SUBTARGET_FRAME_POINTER_REQUIRED) | |
4692 | return 1; | |
4693 | ||
4694 | /* In override_options, TARGET_OMIT_LEAF_FRAME_POINTER turns off | |
4695 | the frame pointer by default. Turn it back on now if we've not | |
4696 | got a leaf function. */ | |
a7943381 | 4697 | if (TARGET_OMIT_LEAF_FRAME_POINTER |
55ba61f3 JH |
4698 | && (!current_function_is_leaf)) |
4699 | return 1; | |
4700 | ||
4701 | if (current_function_profile) | |
6fca22eb RH |
4702 | return 1; |
4703 | ||
4704 | return 0; | |
4705 | } | |
4706 | ||
4707 | /* Record that the current function accesses previous call frames. */ | |
4708 | ||
4709 | void | |
b96a374d | 4710 | ix86_setup_frame_addresses (void) |
6fca22eb RH |
4711 | { |
4712 | cfun->machine->accesses_prev_frame = 1; | |
4713 | } | |
e075ae69 | 4714 | \f |
145aacc2 RH |
4715 | #if defined(HAVE_GAS_HIDDEN) && defined(SUPPORTS_ONE_ONLY) |
4716 | # define USE_HIDDEN_LINKONCE 1 | |
4717 | #else | |
4718 | # define USE_HIDDEN_LINKONCE 0 | |
4719 | #endif | |
4720 | ||
bd09bdeb | 4721 | static int pic_labels_used; |
e9a25f70 | 4722 | |
145aacc2 RH |
4723 | /* Fills in the label name that should be used for a pc thunk for |
4724 | the given register. */ | |
4725 | ||
4726 | static void | |
b96a374d | 4727 | get_pc_thunk_name (char name[32], unsigned int regno) |
145aacc2 RH |
4728 | { |
4729 | if (USE_HIDDEN_LINKONCE) | |
4730 | sprintf (name, "__i686.get_pc_thunk.%s", reg_names[regno]); | |
4731 | else | |
4732 | ASM_GENERATE_INTERNAL_LABEL (name, "LPR", regno); | |
4733 | } | |
4734 | ||
4735 | ||
e075ae69 RH |
4736 | /* This function generates code for -fpic that loads %ebx with |
4737 | the return address of the caller and then returns. */ | |
4738 | ||
4739 | void | |
b96a374d | 4740 | ix86_file_end (void) |
e075ae69 RH |
4741 | { |
4742 | rtx xops[2]; | |
bd09bdeb | 4743 | int regno; |
32b5b1aa | 4744 | |
bd09bdeb | 4745 | for (regno = 0; regno < 8; ++regno) |
7c262518 | 4746 | { |
145aacc2 RH |
4747 | char name[32]; |
4748 | ||
bd09bdeb RH |
4749 | if (! ((pic_labels_used >> regno) & 1)) |
4750 | continue; | |
4751 | ||
145aacc2 | 4752 | get_pc_thunk_name (name, regno); |
bd09bdeb | 4753 | |
145aacc2 RH |
4754 | if (USE_HIDDEN_LINKONCE) |
4755 | { | |
4756 | tree decl; | |
4757 | ||
4758 | decl = build_decl (FUNCTION_DECL, get_identifier (name), | |
4759 | error_mark_node); | |
4760 | TREE_PUBLIC (decl) = 1; | |
4761 | TREE_STATIC (decl) = 1; | |
4762 | DECL_ONE_ONLY (decl) = 1; | |
4763 | ||
4764 | (*targetm.asm_out.unique_section) (decl, 0); | |
4765 | named_section (decl, NULL, 0); | |
4766 | ||
a5fe455b ZW |
4767 | (*targetm.asm_out.globalize_label) (asm_out_file, name); |
4768 | fputs ("\t.hidden\t", asm_out_file); | |
4769 | assemble_name (asm_out_file, name); | |
4770 | fputc ('\n', asm_out_file); | |
4771 | ASM_DECLARE_FUNCTION_NAME (asm_out_file, name, decl); | |
145aacc2 RH |
4772 | } |
4773 | else | |
4774 | { | |
4775 | text_section (); | |
a5fe455b | 4776 | ASM_OUTPUT_LABEL (asm_out_file, name); |
145aacc2 | 4777 | } |
bd09bdeb RH |
4778 | |
4779 | xops[0] = gen_rtx_REG (SImode, regno); | |
4780 | xops[1] = gen_rtx_MEM (SImode, stack_pointer_rtx); | |
4781 | output_asm_insn ("mov{l}\t{%1, %0|%0, %1}", xops); | |
4782 | output_asm_insn ("ret", xops); | |
7c262518 | 4783 | } |
3edc56a9 | 4784 | |
a5fe455b ZW |
4785 | if (NEED_INDICATE_EXEC_STACK) |
4786 | file_end_indicate_exec_stack (); | |
32b5b1aa | 4787 | } |
32b5b1aa | 4788 | |
c8c03509 | 4789 | /* Emit code for the SET_GOT patterns. */ |
32b5b1aa | 4790 | |
c8c03509 | 4791 | const char * |
b96a374d | 4792 | output_set_got (rtx dest) |
c8c03509 RH |
4793 | { |
4794 | rtx xops[3]; | |
0d7d98ee | 4795 | |
c8c03509 | 4796 | xops[0] = dest; |
5fc0e5df | 4797 | xops[1] = gen_rtx_SYMBOL_REF (Pmode, GOT_SYMBOL_NAME); |
32b5b1aa | 4798 | |
c8c03509 | 4799 | if (! TARGET_DEEP_BRANCH_PREDICTION || !flag_pic) |
32b5b1aa | 4800 | { |
c8c03509 RH |
4801 | xops[2] = gen_rtx_LABEL_REF (Pmode, gen_label_rtx ()); |
4802 | ||
4803 | if (!flag_pic) | |
4804 | output_asm_insn ("mov{l}\t{%2, %0|%0, %2}", xops); | |
4805 | else | |
4806 | output_asm_insn ("call\t%a2", xops); | |
4807 | ||
b069de3b SS |
4808 | #if TARGET_MACHO |
4809 | /* Output the "canonical" label name ("Lxx$pb") here too. This | |
4810 | is what will be referred to by the Mach-O PIC subsystem. */ | |
4811 | ASM_OUTPUT_LABEL (asm_out_file, machopic_function_base_name ()); | |
4812 | #endif | |
4977bab6 | 4813 | (*targetm.asm_out.internal_label) (asm_out_file, "L", |
c8c03509 RH |
4814 | CODE_LABEL_NUMBER (XEXP (xops[2], 0))); |
4815 | ||
4816 | if (flag_pic) | |
4817 | output_asm_insn ("pop{l}\t%0", xops); | |
32b5b1aa | 4818 | } |
e075ae69 | 4819 | else |
e5cb57e8 | 4820 | { |
145aacc2 RH |
4821 | char name[32]; |
4822 | get_pc_thunk_name (name, REGNO (dest)); | |
bd09bdeb | 4823 | pic_labels_used |= 1 << REGNO (dest); |
f996902d | 4824 | |
145aacc2 | 4825 | xops[2] = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (name)); |
c8c03509 RH |
4826 | xops[2] = gen_rtx_MEM (QImode, xops[2]); |
4827 | output_asm_insn ("call\t%X2", xops); | |
e5cb57e8 | 4828 | } |
e5cb57e8 | 4829 | |
c8c03509 RH |
4830 | if (!flag_pic || TARGET_DEEP_BRANCH_PREDICTION) |
4831 | output_asm_insn ("add{l}\t{%1, %0|%0, %1}", xops); | |
b069de3b | 4832 | else if (!TARGET_MACHO) |
8e9fadc3 | 4833 | output_asm_insn ("add{l}\t{%1+[.-%a2], %0|%0, %a1+(.-%a2)}", xops); |
79325812 | 4834 | |
c8c03509 | 4835 | return ""; |
e9a25f70 | 4836 | } |
8dfe5673 | 4837 | |
0d7d98ee | 4838 | /* Generate an "push" pattern for input ARG. */ |
e9a25f70 | 4839 | |
e075ae69 | 4840 | static rtx |
b96a374d | 4841 | gen_push (rtx arg) |
e9a25f70 | 4842 | { |
c5c76735 | 4843 | return gen_rtx_SET (VOIDmode, |
0d7d98ee JH |
4844 | gen_rtx_MEM (Pmode, |
4845 | gen_rtx_PRE_DEC (Pmode, | |
c5c76735 JL |
4846 | stack_pointer_rtx)), |
4847 | arg); | |
e9a25f70 JL |
4848 | } |
4849 | ||
bd09bdeb RH |
4850 | /* Return >= 0 if there is an unused call-clobbered register available |
4851 | for the entire function. */ | |
4852 | ||
4853 | static unsigned int | |
b96a374d | 4854 | ix86_select_alt_pic_regnum (void) |
bd09bdeb RH |
4855 | { |
4856 | if (current_function_is_leaf && !current_function_profile) | |
4857 | { | |
4858 | int i; | |
4859 | for (i = 2; i >= 0; --i) | |
4860 | if (!regs_ever_live[i]) | |
4861 | return i; | |
4862 | } | |
4863 | ||
4864 | return INVALID_REGNUM; | |
4865 | } | |
fce5a9f2 | 4866 | |
4dd2ac2c JH |
4867 | /* Return 1 if we need to save REGNO. */ |
4868 | static int | |
b96a374d | 4869 | ix86_save_reg (unsigned int regno, int maybe_eh_return) |
1020a5ab | 4870 | { |
bd09bdeb RH |
4871 | if (pic_offset_table_rtx |
4872 | && regno == REAL_PIC_OFFSET_TABLE_REGNUM | |
4873 | && (regs_ever_live[REAL_PIC_OFFSET_TABLE_REGNUM] | |
66edd3b4 | 4874 | || current_function_profile |
8c38a24f MM |
4875 | || current_function_calls_eh_return |
4876 | || current_function_uses_const_pool)) | |
bd09bdeb RH |
4877 | { |
4878 | if (ix86_select_alt_pic_regnum () != INVALID_REGNUM) | |
4879 | return 0; | |
4880 | return 1; | |
4881 | } | |
1020a5ab RH |
4882 | |
4883 | if (current_function_calls_eh_return && maybe_eh_return) | |
4884 | { | |
4885 | unsigned i; | |
4886 | for (i = 0; ; i++) | |
4887 | { | |
b531087a | 4888 | unsigned test = EH_RETURN_DATA_REGNO (i); |
1020a5ab RH |
4889 | if (test == INVALID_REGNUM) |
4890 | break; | |
9b690711 | 4891 | if (test == regno) |
1020a5ab RH |
4892 | return 1; |
4893 | } | |
4894 | } | |
4dd2ac2c | 4895 | |
1020a5ab RH |
4896 | return (regs_ever_live[regno] |
4897 | && !call_used_regs[regno] | |
4898 | && !fixed_regs[regno] | |
4899 | && (regno != HARD_FRAME_POINTER_REGNUM || !frame_pointer_needed)); | |
4dd2ac2c JH |
4900 | } |
4901 | ||
0903fcab JH |
4902 | /* Return number of registers to be saved on the stack. */ |
4903 | ||
4904 | static int | |
b96a374d | 4905 | ix86_nsaved_regs (void) |
0903fcab JH |
4906 | { |
4907 | int nregs = 0; | |
0903fcab JH |
4908 | int regno; |
4909 | ||
4dd2ac2c | 4910 | for (regno = FIRST_PSEUDO_REGISTER - 1; regno >= 0; regno--) |
1020a5ab | 4911 | if (ix86_save_reg (regno, true)) |
4dd2ac2c | 4912 | nregs++; |
0903fcab JH |
4913 | return nregs; |
4914 | } | |
4915 | ||
4916 | /* Return the offset between two registers, one to be eliminated, and the other | |
4917 | its replacement, at the start of a routine. */ | |
4918 | ||
4919 | HOST_WIDE_INT | |
b96a374d | 4920 | ix86_initial_elimination_offset (int from, int to) |
0903fcab | 4921 | { |
4dd2ac2c JH |
4922 | struct ix86_frame frame; |
4923 | ix86_compute_frame_layout (&frame); | |
564d80f4 JH |
4924 | |
4925 | if (from == ARG_POINTER_REGNUM && to == HARD_FRAME_POINTER_REGNUM) | |
4dd2ac2c | 4926 | return frame.hard_frame_pointer_offset; |
564d80f4 JH |
4927 | else if (from == FRAME_POINTER_REGNUM |
4928 | && to == HARD_FRAME_POINTER_REGNUM) | |
4dd2ac2c | 4929 | return frame.hard_frame_pointer_offset - frame.frame_pointer_offset; |
0903fcab JH |
4930 | else |
4931 | { | |
564d80f4 JH |
4932 | if (to != STACK_POINTER_REGNUM) |
4933 | abort (); | |
4934 | else if (from == ARG_POINTER_REGNUM) | |
4dd2ac2c | 4935 | return frame.stack_pointer_offset; |
564d80f4 JH |
4936 | else if (from != FRAME_POINTER_REGNUM) |
4937 | abort (); | |
0903fcab | 4938 | else |
4dd2ac2c | 4939 | return frame.stack_pointer_offset - frame.frame_pointer_offset; |
0903fcab JH |
4940 | } |
4941 | } | |
4942 | ||
4dd2ac2c | 4943 | /* Fill structure ix86_frame about frame of currently computed function. */ |
0f290768 | 4944 | |
4dd2ac2c | 4945 | static void |
b96a374d | 4946 | ix86_compute_frame_layout (struct ix86_frame *frame) |
65954bd8 | 4947 | { |
65954bd8 | 4948 | HOST_WIDE_INT total_size; |
564d80f4 | 4949 | int stack_alignment_needed = cfun->stack_alignment_needed / BITS_PER_UNIT; |
b19ee4bd | 4950 | HOST_WIDE_INT offset; |
44affdae | 4951 | int preferred_alignment = cfun->preferred_stack_boundary / BITS_PER_UNIT; |
4dd2ac2c | 4952 | HOST_WIDE_INT size = get_frame_size (); |
65954bd8 | 4953 | |
4dd2ac2c | 4954 | frame->nregs = ix86_nsaved_regs (); |
564d80f4 | 4955 | total_size = size; |
65954bd8 | 4956 | |
d7394366 JH |
4957 | /* During reload iteration the amount of registers saved can change. |
4958 | Recompute the value as needed. Do not recompute when amount of registers | |
4959 | didn't change as reload does mutiple calls to the function and does not | |
4960 | expect the decision to change within single iteration. */ | |
4961 | if (!optimize_size | |
4962 | && cfun->machine->use_fast_prologue_epilogue_nregs != frame->nregs) | |
d9b40e8d JH |
4963 | { |
4964 | int count = frame->nregs; | |
4965 | ||
d7394366 | 4966 | cfun->machine->use_fast_prologue_epilogue_nregs = count; |
d9b40e8d JH |
4967 | /* The fast prologue uses move instead of push to save registers. This |
4968 | is significantly longer, but also executes faster as modern hardware | |
4969 | can execute the moves in parallel, but can't do that for push/pop. | |
b96a374d | 4970 | |
d9b40e8d JH |
4971 | Be careful about choosing what prologue to emit: When function takes |
4972 | many instructions to execute we may use slow version as well as in | |
4973 | case function is known to be outside hot spot (this is known with | |
4974 | feedback only). Weight the size of function by number of registers | |
4975 | to save as it is cheap to use one or two push instructions but very | |
4976 | slow to use many of them. */ | |
4977 | if (count) | |
4978 | count = (count - 1) * FAST_PROLOGUE_INSN_COUNT; | |
4979 | if (cfun->function_frequency < FUNCTION_FREQUENCY_NORMAL | |
4980 | || (flag_branch_probabilities | |
4981 | && cfun->function_frequency < FUNCTION_FREQUENCY_HOT)) | |
4982 | cfun->machine->use_fast_prologue_epilogue = false; | |
4983 | else | |
4984 | cfun->machine->use_fast_prologue_epilogue | |
4985 | = !expensive_function_p (count); | |
4986 | } | |
4987 | if (TARGET_PROLOGUE_USING_MOVE | |
4988 | && cfun->machine->use_fast_prologue_epilogue) | |
4989 | frame->save_regs_using_mov = true; | |
4990 | else | |
4991 | frame->save_regs_using_mov = false; | |
4992 | ||
4993 | ||
9ba81eaa | 4994 | /* Skip return address and saved base pointer. */ |
4dd2ac2c JH |
4995 | offset = frame_pointer_needed ? UNITS_PER_WORD * 2 : UNITS_PER_WORD; |
4996 | ||
4997 | frame->hard_frame_pointer_offset = offset; | |
564d80f4 | 4998 | |
fcbfaa65 RK |
4999 | /* Do some sanity checking of stack_alignment_needed and |
5000 | preferred_alignment, since i386 port is the only using those features | |
f710504c | 5001 | that may break easily. */ |
564d80f4 | 5002 | |
44affdae JH |
5003 | if (size && !stack_alignment_needed) |
5004 | abort (); | |
44affdae JH |
5005 | if (preferred_alignment < STACK_BOUNDARY / BITS_PER_UNIT) |
5006 | abort (); | |
5007 | if (preferred_alignment > PREFERRED_STACK_BOUNDARY / BITS_PER_UNIT) | |
5008 | abort (); | |
5009 | if (stack_alignment_needed > PREFERRED_STACK_BOUNDARY / BITS_PER_UNIT) | |
5010 | abort (); | |
564d80f4 | 5011 | |
4dd2ac2c JH |
5012 | if (stack_alignment_needed < STACK_BOUNDARY / BITS_PER_UNIT) |
5013 | stack_alignment_needed = STACK_BOUNDARY / BITS_PER_UNIT; | |
564d80f4 | 5014 | |
4dd2ac2c JH |
5015 | /* Register save area */ |
5016 | offset += frame->nregs * UNITS_PER_WORD; | |
65954bd8 | 5017 | |
8362f420 JH |
5018 | /* Va-arg area */ |
5019 | if (ix86_save_varrargs_registers) | |
5020 | { | |
5021 | offset += X86_64_VARARGS_SIZE; | |
5022 | frame->va_arg_size = X86_64_VARARGS_SIZE; | |
5023 | } | |
5024 | else | |
5025 | frame->va_arg_size = 0; | |
5026 | ||
4dd2ac2c JH |
5027 | /* Align start of frame for local function. */ |
5028 | frame->padding1 = ((offset + stack_alignment_needed - 1) | |
5029 | & -stack_alignment_needed) - offset; | |
f73ad30e | 5030 | |
4dd2ac2c | 5031 | offset += frame->padding1; |
65954bd8 | 5032 | |
4dd2ac2c JH |
5033 | /* Frame pointer points here. */ |
5034 | frame->frame_pointer_offset = offset; | |
54ff41b7 | 5035 | |
4dd2ac2c | 5036 | offset += size; |
65954bd8 | 5037 | |
0b7ae565 | 5038 | /* Add outgoing arguments area. Can be skipped if we eliminated |
965514bd JH |
5039 | all the function calls as dead code. |
5040 | Skipping is however impossible when function calls alloca. Alloca | |
5041 | expander assumes that last current_function_outgoing_args_size | |
5042 | of stack frame are unused. */ | |
5043 | if (ACCUMULATE_OUTGOING_ARGS | |
5044 | && (!current_function_is_leaf || current_function_calls_alloca)) | |
4dd2ac2c JH |
5045 | { |
5046 | offset += current_function_outgoing_args_size; | |
5047 | frame->outgoing_arguments_size = current_function_outgoing_args_size; | |
5048 | } | |
5049 | else | |
5050 | frame->outgoing_arguments_size = 0; | |
564d80f4 | 5051 | |
002ff5bc RH |
5052 | /* Align stack boundary. Only needed if we're calling another function |
5053 | or using alloca. */ | |
5054 | if (!current_function_is_leaf || current_function_calls_alloca) | |
0b7ae565 RH |
5055 | frame->padding2 = ((offset + preferred_alignment - 1) |
5056 | & -preferred_alignment) - offset; | |
5057 | else | |
5058 | frame->padding2 = 0; | |
4dd2ac2c JH |
5059 | |
5060 | offset += frame->padding2; | |
5061 | ||
5062 | /* We've reached end of stack frame. */ | |
5063 | frame->stack_pointer_offset = offset; | |
5064 | ||
5065 | /* Size prologue needs to allocate. */ | |
5066 | frame->to_allocate = | |
5067 | (size + frame->padding1 + frame->padding2 | |
8362f420 | 5068 | + frame->outgoing_arguments_size + frame->va_arg_size); |
4dd2ac2c | 5069 | |
b19ee4bd JJ |
5070 | if ((!frame->to_allocate && frame->nregs <= 1) |
5071 | || (TARGET_64BIT && frame->to_allocate >= (HOST_WIDE_INT) 0x80000000)) | |
d9b40e8d JH |
5072 | frame->save_regs_using_mov = false; |
5073 | ||
a5b378d6 | 5074 | if (TARGET_RED_ZONE && current_function_sp_is_unchanging |
8362f420 JH |
5075 | && current_function_is_leaf) |
5076 | { | |
5077 | frame->red_zone_size = frame->to_allocate; | |
d9b40e8d JH |
5078 | if (frame->save_regs_using_mov) |
5079 | frame->red_zone_size += frame->nregs * UNITS_PER_WORD; | |
8362f420 JH |
5080 | if (frame->red_zone_size > RED_ZONE_SIZE - RED_ZONE_RESERVE) |
5081 | frame->red_zone_size = RED_ZONE_SIZE - RED_ZONE_RESERVE; | |
5082 | } | |
5083 | else | |
5084 | frame->red_zone_size = 0; | |
5085 | frame->to_allocate -= frame->red_zone_size; | |
5086 | frame->stack_pointer_offset -= frame->red_zone_size; | |
4dd2ac2c JH |
5087 | #if 0 |
5088 | fprintf (stderr, "nregs: %i\n", frame->nregs); | |
5089 | fprintf (stderr, "size: %i\n", size); | |
5090 | fprintf (stderr, "alignment1: %i\n", stack_alignment_needed); | |
5091 | fprintf (stderr, "padding1: %i\n", frame->padding1); | |
8362f420 | 5092 | fprintf (stderr, "va_arg: %i\n", frame->va_arg_size); |
4dd2ac2c JH |
5093 | fprintf (stderr, "padding2: %i\n", frame->padding2); |
5094 | fprintf (stderr, "to_allocate: %i\n", frame->to_allocate); | |
8362f420 | 5095 | fprintf (stderr, "red_zone_size: %i\n", frame->red_zone_size); |
4dd2ac2c JH |
5096 | fprintf (stderr, "frame_pointer_offset: %i\n", frame->frame_pointer_offset); |
5097 | fprintf (stderr, "hard_frame_pointer_offset: %i\n", | |
5098 | frame->hard_frame_pointer_offset); | |
5099 | fprintf (stderr, "stack_pointer_offset: %i\n", frame->stack_pointer_offset); | |
5100 | #endif | |
65954bd8 JL |
5101 | } |
5102 | ||
0903fcab JH |
5103 | /* Emit code to save registers in the prologue. */ |
5104 | ||
5105 | static void | |
b96a374d | 5106 | ix86_emit_save_regs (void) |
0903fcab | 5107 | { |
8d531ab9 | 5108 | int regno; |
0903fcab | 5109 | rtx insn; |
0903fcab | 5110 | |
4dd2ac2c | 5111 | for (regno = FIRST_PSEUDO_REGISTER - 1; regno >= 0; regno--) |
1020a5ab | 5112 | if (ix86_save_reg (regno, true)) |
0903fcab | 5113 | { |
0d7d98ee | 5114 | insn = emit_insn (gen_push (gen_rtx_REG (Pmode, regno))); |
0903fcab JH |
5115 | RTX_FRAME_RELATED_P (insn) = 1; |
5116 | } | |
5117 | } | |
5118 | ||
c6036a37 JH |
5119 | /* Emit code to save registers using MOV insns. First register |
5120 | is restored from POINTER + OFFSET. */ | |
5121 | static void | |
b96a374d | 5122 | ix86_emit_save_regs_using_mov (rtx pointer, HOST_WIDE_INT offset) |
c6036a37 JH |
5123 | { |
5124 | int regno; | |
5125 | rtx insn; | |
5126 | ||
5127 | for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++) | |
5128 | if (ix86_save_reg (regno, true)) | |
5129 | { | |
b72f00af RK |
5130 | insn = emit_move_insn (adjust_address (gen_rtx_MEM (Pmode, pointer), |
5131 | Pmode, offset), | |
c6036a37 JH |
5132 | gen_rtx_REG (Pmode, regno)); |
5133 | RTX_FRAME_RELATED_P (insn) = 1; | |
5134 | offset += UNITS_PER_WORD; | |
5135 | } | |
5136 | } | |
5137 | ||
839a4992 | 5138 | /* Expand prologue or epilogue stack adjustment. |
b19ee4bd JJ |
5139 | The pattern exist to put a dependency on all ebp-based memory accesses. |
5140 | STYLE should be negative if instructions should be marked as frame related, | |
5141 | zero if %r11 register is live and cannot be freely used and positive | |
5142 | otherwise. */ | |
5143 | ||
5144 | static void | |
5145 | pro_epilogue_adjust_stack (rtx dest, rtx src, rtx offset, int style) | |
5146 | { | |
5147 | rtx insn; | |
5148 | ||
5149 | if (! TARGET_64BIT) | |
5150 | insn = emit_insn (gen_pro_epilogue_adjust_stack_1 (dest, src, offset)); | |
5151 | else if (x86_64_immediate_operand (offset, DImode)) | |
5152 | insn = emit_insn (gen_pro_epilogue_adjust_stack_rex64 (dest, src, offset)); | |
5153 | else | |
5154 | { | |
5155 | rtx r11; | |
5156 | /* r11 is used by indirect sibcall return as well, set before the | |
5157 | epilogue and used after the epilogue. ATM indirect sibcall | |
5158 | shouldn't be used together with huge frame sizes in one | |
5159 | function because of the frame_size check in sibcall.c. */ | |
5160 | if (style == 0) | |
5161 | abort (); | |
5162 | r11 = gen_rtx_REG (DImode, FIRST_REX_INT_REG + 3 /* R11 */); | |
5163 | insn = emit_insn (gen_rtx_SET (DImode, r11, offset)); | |
5164 | if (style < 0) | |
5165 | RTX_FRAME_RELATED_P (insn) = 1; | |
5166 | insn = emit_insn (gen_pro_epilogue_adjust_stack_rex64_2 (dest, src, r11, | |
5167 | offset)); | |
5168 | } | |
5169 | if (style < 0) | |
5170 | RTX_FRAME_RELATED_P (insn) = 1; | |
5171 | } | |
5172 | ||
0f290768 | 5173 | /* Expand the prologue into a bunch of separate insns. */ |
e075ae69 RH |
5174 | |
5175 | void | |
b96a374d | 5176 | ix86_expand_prologue (void) |
2a2ab3f9 | 5177 | { |
564d80f4 | 5178 | rtx insn; |
bd09bdeb | 5179 | bool pic_reg_used; |
4dd2ac2c | 5180 | struct ix86_frame frame; |
c6036a37 | 5181 | HOST_WIDE_INT allocate; |
4dd2ac2c | 5182 | |
4977bab6 | 5183 | ix86_compute_frame_layout (&frame); |
79325812 | 5184 | |
e075ae69 RH |
5185 | /* Note: AT&T enter does NOT have reversed args. Enter is probably |
5186 | slower on all targets. Also sdb doesn't like it. */ | |
e9a25f70 | 5187 | |
2a2ab3f9 JVA |
5188 | if (frame_pointer_needed) |
5189 | { | |
564d80f4 | 5190 | insn = emit_insn (gen_push (hard_frame_pointer_rtx)); |
e075ae69 | 5191 | RTX_FRAME_RELATED_P (insn) = 1; |
e9a25f70 | 5192 | |
564d80f4 | 5193 | insn = emit_move_insn (hard_frame_pointer_rtx, stack_pointer_rtx); |
e075ae69 | 5194 | RTX_FRAME_RELATED_P (insn) = 1; |
2a2ab3f9 JVA |
5195 | } |
5196 | ||
c6036a37 | 5197 | allocate = frame.to_allocate; |
c6036a37 | 5198 | |
d9b40e8d | 5199 | if (!frame.save_regs_using_mov) |
c6036a37 JH |
5200 | ix86_emit_save_regs (); |
5201 | else | |
5202 | allocate += frame.nregs * UNITS_PER_WORD; | |
564d80f4 | 5203 | |
d9b40e8d JH |
5204 | /* When using red zone we may start register saving before allocating |
5205 | the stack frame saving one cycle of the prologue. */ | |
5206 | if (TARGET_RED_ZONE && frame.save_regs_using_mov) | |
5207 | ix86_emit_save_regs_using_mov (frame_pointer_needed ? hard_frame_pointer_rtx | |
5208 | : stack_pointer_rtx, | |
5209 | -frame.nregs * UNITS_PER_WORD); | |
5210 | ||
c6036a37 | 5211 | if (allocate == 0) |
8dfe5673 | 5212 | ; |
e323735c | 5213 | else if (! TARGET_STACK_PROBE || allocate < CHECK_STACK_LIMIT) |
b19ee4bd JJ |
5214 | pro_epilogue_adjust_stack (stack_pointer_rtx, stack_pointer_rtx, |
5215 | GEN_INT (-allocate), -1); | |
79325812 | 5216 | else |
8dfe5673 | 5217 | { |
fe9f516f RH |
5218 | /* Only valid for Win32. */ |
5219 | rtx eax = gen_rtx_REG (SImode, 0); | |
5220 | bool eax_live = ix86_eax_live_at_start_p (); | |
e9a25f70 | 5221 | |
8362f420 | 5222 | if (TARGET_64BIT) |
b1177d69 | 5223 | abort (); |
e075ae69 | 5224 | |
fe9f516f RH |
5225 | if (eax_live) |
5226 | { | |
5227 | emit_insn (gen_push (eax)); | |
5228 | allocate -= 4; | |
5229 | } | |
5230 | ||
5231 | insn = emit_move_insn (eax, GEN_INT (allocate)); | |
b1177d69 | 5232 | RTX_FRAME_RELATED_P (insn) = 1; |
98417968 | 5233 | |
b1177d69 KC |
5234 | insn = emit_insn (gen_allocate_stack_worker (eax)); |
5235 | RTX_FRAME_RELATED_P (insn) = 1; | |
fe9f516f RH |
5236 | |
5237 | if (eax_live) | |
5238 | { | |
5239 | rtx t = plus_constant (stack_pointer_rtx, allocate); | |
5240 | emit_move_insn (eax, gen_rtx_MEM (SImode, t)); | |
5241 | } | |
e075ae69 | 5242 | } |
fe9f516f | 5243 | |
d9b40e8d | 5244 | if (frame.save_regs_using_mov && !TARGET_RED_ZONE) |
c6036a37 JH |
5245 | { |
5246 | if (!frame_pointer_needed || !frame.to_allocate) | |
5247 | ix86_emit_save_regs_using_mov (stack_pointer_rtx, frame.to_allocate); | |
5248 | else | |
5249 | ix86_emit_save_regs_using_mov (hard_frame_pointer_rtx, | |
5250 | -frame.nregs * UNITS_PER_WORD); | |
5251 | } | |
e9a25f70 | 5252 | |
bd09bdeb RH |
5253 | pic_reg_used = false; |
5254 | if (pic_offset_table_rtx | |
5255 | && (regs_ever_live[REAL_PIC_OFFSET_TABLE_REGNUM] | |
5256 | || current_function_profile)) | |
5257 | { | |
5258 | unsigned int alt_pic_reg_used = ix86_select_alt_pic_regnum (); | |
5259 | ||
5260 | if (alt_pic_reg_used != INVALID_REGNUM) | |
5261 | REGNO (pic_offset_table_rtx) = alt_pic_reg_used; | |
5262 | ||
5263 | pic_reg_used = true; | |
5264 | } | |
5265 | ||
e9a25f70 | 5266 | if (pic_reg_used) |
c8c03509 RH |
5267 | { |
5268 | insn = emit_insn (gen_set_got (pic_offset_table_rtx)); | |
5269 | ||
66edd3b4 RH |
5270 | /* Even with accurate pre-reload life analysis, we can wind up |
5271 | deleting all references to the pic register after reload. | |
5272 | Consider if cross-jumping unifies two sides of a branch | |
d1f87653 | 5273 | controlled by a comparison vs the only read from a global. |
66edd3b4 RH |
5274 | In which case, allow the set_got to be deleted, though we're |
5275 | too late to do anything about the ebx save in the prologue. */ | |
c8c03509 RH |
5276 | REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_MAYBE_DEAD, const0_rtx, NULL); |
5277 | } | |
77a989d1 | 5278 | |
66edd3b4 RH |
5279 | /* Prevent function calls from be scheduled before the call to mcount. |
5280 | In the pic_reg_used case, make sure that the got load isn't deleted. */ | |
5281 | if (current_function_profile) | |
5282 | emit_insn (gen_blockage (pic_reg_used ? pic_offset_table_rtx : const0_rtx)); | |
77a989d1 SC |
5283 | } |
5284 | ||
da2d1d3a JH |
5285 | /* Emit code to restore saved registers using MOV insns. First register |
5286 | is restored from POINTER + OFFSET. */ | |
5287 | static void | |
72613dfa JH |
5288 | ix86_emit_restore_regs_using_mov (rtx pointer, HOST_WIDE_INT offset, |
5289 | int maybe_eh_return) | |
da2d1d3a JH |
5290 | { |
5291 | int regno; | |
72613dfa | 5292 | rtx base_address = gen_rtx_MEM (Pmode, pointer); |
da2d1d3a | 5293 | |
4dd2ac2c | 5294 | for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++) |
1020a5ab | 5295 | if (ix86_save_reg (regno, maybe_eh_return)) |
da2d1d3a | 5296 | { |
72613dfa JH |
5297 | /* Ensure that adjust_address won't be forced to produce pointer |
5298 | out of range allowed by x86-64 instruction set. */ | |
5299 | if (TARGET_64BIT && offset != trunc_int_for_mode (offset, SImode)) | |
5300 | { | |
5301 | rtx r11; | |
5302 | ||
5303 | r11 = gen_rtx_REG (DImode, FIRST_REX_INT_REG + 3 /* R11 */); | |
5304 | emit_move_insn (r11, GEN_INT (offset)); | |
5305 | emit_insn (gen_adddi3 (r11, r11, pointer)); | |
5306 | base_address = gen_rtx_MEM (Pmode, r11); | |
5307 | offset = 0; | |
5308 | } | |
4dd2ac2c | 5309 | emit_move_insn (gen_rtx_REG (Pmode, regno), |
72613dfa | 5310 | adjust_address (base_address, Pmode, offset)); |
4dd2ac2c | 5311 | offset += UNITS_PER_WORD; |
da2d1d3a JH |
5312 | } |
5313 | } | |
5314 | ||
0f290768 | 5315 | /* Restore function stack, frame, and registers. */ |
e9a25f70 | 5316 | |
2a2ab3f9 | 5317 | void |
b96a374d | 5318 | ix86_expand_epilogue (int style) |
2a2ab3f9 | 5319 | { |
1c71e60e | 5320 | int regno; |
fdb8a883 | 5321 | int sp_valid = !frame_pointer_needed || current_function_sp_is_unchanging; |
4dd2ac2c | 5322 | struct ix86_frame frame; |
65954bd8 | 5323 | HOST_WIDE_INT offset; |
4dd2ac2c JH |
5324 | |
5325 | ix86_compute_frame_layout (&frame); | |
2a2ab3f9 | 5326 | |
a4f31c00 | 5327 | /* Calculate start of saved registers relative to ebp. Special care |
84e306b4 RH |
5328 | must be taken for the normal return case of a function using |
5329 | eh_return: the eax and edx registers are marked as saved, but not | |
5330 | restored along this path. */ | |
5331 | offset = frame.nregs; | |
5332 | if (current_function_calls_eh_return && style != 2) | |
5333 | offset -= 2; | |
5334 | offset *= -UNITS_PER_WORD; | |
2a2ab3f9 | 5335 | |
fdb8a883 JW |
5336 | /* If we're only restoring one register and sp is not valid then |
5337 | using a move instruction to restore the register since it's | |
0f290768 | 5338 | less work than reloading sp and popping the register. |
da2d1d3a JH |
5339 | |
5340 | The default code result in stack adjustment using add/lea instruction, | |
5341 | while this code results in LEAVE instruction (or discrete equivalent), | |
5342 | so it is profitable in some other cases as well. Especially when there | |
5343 | are no registers to restore. We also use this code when TARGET_USE_LEAVE | |
d1f87653 | 5344 | and there is exactly one register to pop. This heuristic may need some |
da2d1d3a | 5345 | tuning in future. */ |
4dd2ac2c | 5346 | if ((!sp_valid && frame.nregs <= 1) |
2ab0437e | 5347 | || (TARGET_EPILOGUE_USING_MOVE |
d9b40e8d | 5348 | && cfun->machine->use_fast_prologue_epilogue |
c6036a37 | 5349 | && (frame.nregs > 1 || frame.to_allocate)) |
4dd2ac2c | 5350 | || (frame_pointer_needed && !frame.nregs && frame.to_allocate) |
2ab0437e | 5351 | || (frame_pointer_needed && TARGET_USE_LEAVE |
d9b40e8d JH |
5352 | && cfun->machine->use_fast_prologue_epilogue |
5353 | && frame.nregs == 1) | |
2ab0437e | 5354 | || current_function_calls_eh_return) |
2a2ab3f9 | 5355 | { |
da2d1d3a JH |
5356 | /* Restore registers. We can use ebp or esp to address the memory |
5357 | locations. If both are available, default to ebp, since offsets | |
5358 | are known to be small. Only exception is esp pointing directly to the | |
5359 | end of block of saved registers, where we may simplify addressing | |
5360 | mode. */ | |
5361 | ||
4dd2ac2c | 5362 | if (!frame_pointer_needed || (sp_valid && !frame.to_allocate)) |
1020a5ab RH |
5363 | ix86_emit_restore_regs_using_mov (stack_pointer_rtx, |
5364 | frame.to_allocate, style == 2); | |
da2d1d3a | 5365 | else |
1020a5ab RH |
5366 | ix86_emit_restore_regs_using_mov (hard_frame_pointer_rtx, |
5367 | offset, style == 2); | |
5368 | ||
5369 | /* eh_return epilogues need %ecx added to the stack pointer. */ | |
5370 | if (style == 2) | |
5371 | { | |
5372 | rtx tmp, sa = EH_RETURN_STACKADJ_RTX; | |
2a2ab3f9 | 5373 | |
1020a5ab RH |
5374 | if (frame_pointer_needed) |
5375 | { | |
5376 | tmp = gen_rtx_PLUS (Pmode, hard_frame_pointer_rtx, sa); | |
5377 | tmp = plus_constant (tmp, UNITS_PER_WORD); | |
5378 | emit_insn (gen_rtx_SET (VOIDmode, sa, tmp)); | |
5379 | ||
5380 | tmp = gen_rtx_MEM (Pmode, hard_frame_pointer_rtx); | |
5381 | emit_move_insn (hard_frame_pointer_rtx, tmp); | |
5382 | ||
b19ee4bd JJ |
5383 | pro_epilogue_adjust_stack (stack_pointer_rtx, sa, |
5384 | const0_rtx, style); | |
1020a5ab RH |
5385 | } |
5386 | else | |
5387 | { | |
5388 | tmp = gen_rtx_PLUS (Pmode, stack_pointer_rtx, sa); | |
5389 | tmp = plus_constant (tmp, (frame.to_allocate | |
5390 | + frame.nregs * UNITS_PER_WORD)); | |
5391 | emit_insn (gen_rtx_SET (VOIDmode, stack_pointer_rtx, tmp)); | |
5392 | } | |
5393 | } | |
5394 | else if (!frame_pointer_needed) | |
b19ee4bd JJ |
5395 | pro_epilogue_adjust_stack (stack_pointer_rtx, stack_pointer_rtx, |
5396 | GEN_INT (frame.to_allocate | |
5397 | + frame.nregs * UNITS_PER_WORD), | |
5398 | style); | |
0f290768 | 5399 | /* If not an i386, mov & pop is faster than "leave". */ |
d9b40e8d JH |
5400 | else if (TARGET_USE_LEAVE || optimize_size |
5401 | || !cfun->machine->use_fast_prologue_epilogue) | |
8362f420 | 5402 | emit_insn (TARGET_64BIT ? gen_leave_rex64 () : gen_leave ()); |
c8c5cb99 | 5403 | else |
2a2ab3f9 | 5404 | { |
b19ee4bd JJ |
5405 | pro_epilogue_adjust_stack (stack_pointer_rtx, |
5406 | hard_frame_pointer_rtx, | |
5407 | const0_rtx, style); | |
8362f420 JH |
5408 | if (TARGET_64BIT) |
5409 | emit_insn (gen_popdi1 (hard_frame_pointer_rtx)); | |
5410 | else | |
5411 | emit_insn (gen_popsi1 (hard_frame_pointer_rtx)); | |
e9a25f70 JL |
5412 | } |
5413 | } | |
1c71e60e | 5414 | else |
68f654ec | 5415 | { |
1c71e60e JH |
5416 | /* First step is to deallocate the stack frame so that we can |
5417 | pop the registers. */ | |
5418 | if (!sp_valid) | |
5419 | { | |
5420 | if (!frame_pointer_needed) | |
5421 | abort (); | |
b19ee4bd JJ |
5422 | pro_epilogue_adjust_stack (stack_pointer_rtx, |
5423 | hard_frame_pointer_rtx, | |
5424 | GEN_INT (offset), style); | |
1c71e60e | 5425 | } |
4dd2ac2c | 5426 | else if (frame.to_allocate) |
b19ee4bd JJ |
5427 | pro_epilogue_adjust_stack (stack_pointer_rtx, stack_pointer_rtx, |
5428 | GEN_INT (frame.to_allocate), style); | |
1c71e60e | 5429 | |
4dd2ac2c | 5430 | for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++) |
1020a5ab | 5431 | if (ix86_save_reg (regno, false)) |
8362f420 JH |
5432 | { |
5433 | if (TARGET_64BIT) | |
5434 | emit_insn (gen_popdi1 (gen_rtx_REG (Pmode, regno))); | |
5435 | else | |
5436 | emit_insn (gen_popsi1 (gen_rtx_REG (Pmode, regno))); | |
5437 | } | |
4dd2ac2c | 5438 | if (frame_pointer_needed) |
8362f420 | 5439 | { |
f5143c46 | 5440 | /* Leave results in shorter dependency chains on CPUs that are |
2ab0437e JH |
5441 | able to grok it fast. */ |
5442 | if (TARGET_USE_LEAVE) | |
5443 | emit_insn (TARGET_64BIT ? gen_leave_rex64 () : gen_leave ()); | |
5444 | else if (TARGET_64BIT) | |
8362f420 JH |
5445 | emit_insn (gen_popdi1 (hard_frame_pointer_rtx)); |
5446 | else | |
5447 | emit_insn (gen_popsi1 (hard_frame_pointer_rtx)); | |
5448 | } | |
68f654ec | 5449 | } |
68f654ec | 5450 | |
cbbf65e0 | 5451 | /* Sibcall epilogues don't want a return instruction. */ |
1020a5ab | 5452 | if (style == 0) |
cbbf65e0 RH |
5453 | return; |
5454 | ||
2a2ab3f9 JVA |
5455 | if (current_function_pops_args && current_function_args_size) |
5456 | { | |
e075ae69 | 5457 | rtx popc = GEN_INT (current_function_pops_args); |
2a2ab3f9 | 5458 | |
b8c752c8 UD |
5459 | /* i386 can only pop 64K bytes. If asked to pop more, pop |
5460 | return address, do explicit add, and jump indirectly to the | |
0f290768 | 5461 | caller. */ |
2a2ab3f9 | 5462 | |
b8c752c8 | 5463 | if (current_function_pops_args >= 65536) |
2a2ab3f9 | 5464 | { |
e075ae69 | 5465 | rtx ecx = gen_rtx_REG (SImode, 2); |
e9a25f70 | 5466 | |
b19ee4bd | 5467 | /* There is no "pascal" calling convention in 64bit ABI. */ |
8362f420 | 5468 | if (TARGET_64BIT) |
b531087a | 5469 | abort (); |
8362f420 | 5470 | |
e075ae69 RH |
5471 | emit_insn (gen_popsi1 (ecx)); |
5472 | emit_insn (gen_addsi3 (stack_pointer_rtx, stack_pointer_rtx, popc)); | |
11837777 | 5473 | emit_jump_insn (gen_return_indirect_internal (ecx)); |
e9a25f70 | 5474 | } |
79325812 | 5475 | else |
e075ae69 RH |
5476 | emit_jump_insn (gen_return_pop_internal (popc)); |
5477 | } | |
5478 | else | |
5479 | emit_jump_insn (gen_return_internal ()); | |
5480 | } | |
bd09bdeb RH |
5481 | |
5482 | /* Reset from the function's potential modifications. */ | |
5483 | ||
5484 | static void | |
b96a374d AJ |
5485 | ix86_output_function_epilogue (FILE *file ATTRIBUTE_UNUSED, |
5486 | HOST_WIDE_INT size ATTRIBUTE_UNUSED) | |
bd09bdeb RH |
5487 | { |
5488 | if (pic_offset_table_rtx) | |
5489 | REGNO (pic_offset_table_rtx) = REAL_PIC_OFFSET_TABLE_REGNUM; | |
5490 | } | |
e075ae69 RH |
5491 | \f |
5492 | /* Extract the parts of an RTL expression that is a valid memory address | |
b446e5a2 JH |
5493 | for an instruction. Return 0 if the structure of the address is |
5494 | grossly off. Return -1 if the address contains ASHIFT, so it is not | |
74dc3e94 | 5495 | strictly valid, but still used for computing length of lea instruction. */ |
e075ae69 RH |
5496 | |
5497 | static int | |
8d531ab9 | 5498 | ix86_decompose_address (rtx addr, struct ix86_address *out) |
e075ae69 RH |
5499 | { |
5500 | rtx base = NULL_RTX; | |
5501 | rtx index = NULL_RTX; | |
5502 | rtx disp = NULL_RTX; | |
5503 | HOST_WIDE_INT scale = 1; | |
5504 | rtx scale_rtx = NULL_RTX; | |
b446e5a2 | 5505 | int retval = 1; |
74dc3e94 | 5506 | enum ix86_address_seg seg = SEG_DEFAULT; |
e075ae69 | 5507 | |
90e4e4c5 | 5508 | if (GET_CODE (addr) == REG || GET_CODE (addr) == SUBREG) |
e075ae69 RH |
5509 | base = addr; |
5510 | else if (GET_CODE (addr) == PLUS) | |
5511 | { | |
74dc3e94 RH |
5512 | rtx addends[4], op; |
5513 | int n = 0, i; | |
e075ae69 | 5514 | |
74dc3e94 RH |
5515 | op = addr; |
5516 | do | |
e075ae69 | 5517 | { |
74dc3e94 RH |
5518 | if (n >= 4) |
5519 | return 0; | |
5520 | addends[n++] = XEXP (op, 1); | |
5521 | op = XEXP (op, 0); | |
2a2ab3f9 | 5522 | } |
74dc3e94 RH |
5523 | while (GET_CODE (op) == PLUS); |
5524 | if (n >= 4) | |
5525 | return 0; | |
5526 | addends[n] = op; | |
5527 | ||
5528 | for (i = n; i >= 0; --i) | |
e075ae69 | 5529 | { |
74dc3e94 RH |
5530 | op = addends[i]; |
5531 | switch (GET_CODE (op)) | |
5532 | { | |
5533 | case MULT: | |
5534 | if (index) | |
5535 | return 0; | |
5536 | index = XEXP (op, 0); | |
5537 | scale_rtx = XEXP (op, 1); | |
5538 | break; | |
5539 | ||
5540 | case UNSPEC: | |
5541 | if (XINT (op, 1) == UNSPEC_TP | |
5542 | && TARGET_TLS_DIRECT_SEG_REFS | |
5543 | && seg == SEG_DEFAULT) | |
5544 | seg = TARGET_64BIT ? SEG_FS : SEG_GS; | |
5545 | else | |
5546 | return 0; | |
5547 | break; | |
5548 | ||
5549 | case REG: | |
5550 | case SUBREG: | |
5551 | if (!base) | |
5552 | base = op; | |
5553 | else if (!index) | |
5554 | index = op; | |
5555 | else | |
5556 | return 0; | |
5557 | break; | |
5558 | ||
5559 | case CONST: | |
5560 | case CONST_INT: | |
5561 | case SYMBOL_REF: | |
5562 | case LABEL_REF: | |
5563 | if (disp) | |
5564 | return 0; | |
5565 | disp = op; | |
5566 | break; | |
5567 | ||
5568 | default: | |
5569 | return 0; | |
5570 | } | |
e075ae69 | 5571 | } |
e075ae69 RH |
5572 | } |
5573 | else if (GET_CODE (addr) == MULT) | |
5574 | { | |
5575 | index = XEXP (addr, 0); /* index*scale */ | |
5576 | scale_rtx = XEXP (addr, 1); | |
5577 | } | |
5578 | else if (GET_CODE (addr) == ASHIFT) | |
5579 | { | |
5580 | rtx tmp; | |
5581 | ||
5582 | /* We're called for lea too, which implements ashift on occasion. */ | |
5583 | index = XEXP (addr, 0); | |
5584 | tmp = XEXP (addr, 1); | |
5585 | if (GET_CODE (tmp) != CONST_INT) | |
b446e5a2 | 5586 | return 0; |
e075ae69 RH |
5587 | scale = INTVAL (tmp); |
5588 | if ((unsigned HOST_WIDE_INT) scale > 3) | |
b446e5a2 | 5589 | return 0; |
e075ae69 | 5590 | scale = 1 << scale; |
b446e5a2 | 5591 | retval = -1; |
2a2ab3f9 | 5592 | } |
2a2ab3f9 | 5593 | else |
e075ae69 RH |
5594 | disp = addr; /* displacement */ |
5595 | ||
5596 | /* Extract the integral value of scale. */ | |
5597 | if (scale_rtx) | |
e9a25f70 | 5598 | { |
e075ae69 | 5599 | if (GET_CODE (scale_rtx) != CONST_INT) |
b446e5a2 | 5600 | return 0; |
e075ae69 | 5601 | scale = INTVAL (scale_rtx); |
e9a25f70 | 5602 | } |
3b3c6a3f | 5603 | |
74dc3e94 | 5604 | /* Allow arg pointer and stack pointer as index if there is not scaling. */ |
e075ae69 | 5605 | if (base && index && scale == 1 |
74dc3e94 RH |
5606 | && (index == arg_pointer_rtx |
5607 | || index == frame_pointer_rtx | |
5608 | || (REG_P (index) && REGNO (index) == STACK_POINTER_REGNUM))) | |
e075ae69 RH |
5609 | { |
5610 | rtx tmp = base; | |
5611 | base = index; | |
5612 | index = tmp; | |
5613 | } | |
5614 | ||
5615 | /* Special case: %ebp cannot be encoded as a base without a displacement. */ | |
564d80f4 JH |
5616 | if ((base == hard_frame_pointer_rtx |
5617 | || base == frame_pointer_rtx | |
5618 | || base == arg_pointer_rtx) && !disp) | |
e075ae69 RH |
5619 | disp = const0_rtx; |
5620 | ||
5621 | /* Special case: on K6, [%esi] makes the instruction vector decoded. | |
5622 | Avoid this by transforming to [%esi+0]. */ | |
9e555526 | 5623 | if (ix86_tune == PROCESSOR_K6 && !optimize_size |
e075ae69 | 5624 | && base && !index && !disp |
329e1d01 | 5625 | && REG_P (base) |
e075ae69 RH |
5626 | && REGNO_REG_CLASS (REGNO (base)) == SIREG) |
5627 | disp = const0_rtx; | |
5628 | ||
5629 | /* Special case: encode reg+reg instead of reg*2. */ | |
5630 | if (!base && index && scale && scale == 2) | |
5631 | base = index, scale = 1; | |
0f290768 | 5632 | |
e075ae69 RH |
5633 | /* Special case: scaling cannot be encoded without base or displacement. */ |
5634 | if (!base && !disp && index && scale != 1) | |
5635 | disp = const0_rtx; | |
5636 | ||
5637 | out->base = base; | |
5638 | out->index = index; | |
5639 | out->disp = disp; | |
5640 | out->scale = scale; | |
74dc3e94 | 5641 | out->seg = seg; |
3b3c6a3f | 5642 | |
b446e5a2 | 5643 | return retval; |
e075ae69 | 5644 | } |
01329426 JH |
5645 | \f |
5646 | /* Return cost of the memory address x. | |
5647 | For i386, it is better to use a complex address than let gcc copy | |
5648 | the address into a reg and make a new pseudo. But not if the address | |
5649 | requires to two regs - that would mean more pseudos with longer | |
5650 | lifetimes. */ | |
dcefdf67 | 5651 | static int |
b96a374d | 5652 | ix86_address_cost (rtx x) |
01329426 JH |
5653 | { |
5654 | struct ix86_address parts; | |
5655 | int cost = 1; | |
3b3c6a3f | 5656 | |
01329426 JH |
5657 | if (!ix86_decompose_address (x, &parts)) |
5658 | abort (); | |
5659 | ||
5660 | /* More complex memory references are better. */ | |
5661 | if (parts.disp && parts.disp != const0_rtx) | |
5662 | cost--; | |
74dc3e94 RH |
5663 | if (parts.seg != SEG_DEFAULT) |
5664 | cost--; | |
01329426 JH |
5665 | |
5666 | /* Attempt to minimize number of registers in the address. */ | |
5667 | if ((parts.base | |
5668 | && (!REG_P (parts.base) || REGNO (parts.base) >= FIRST_PSEUDO_REGISTER)) | |
5669 | || (parts.index | |
5670 | && (!REG_P (parts.index) | |
5671 | || REGNO (parts.index) >= FIRST_PSEUDO_REGISTER))) | |
5672 | cost++; | |
5673 | ||
5674 | if (parts.base | |
5675 | && (!REG_P (parts.base) || REGNO (parts.base) >= FIRST_PSEUDO_REGISTER) | |
5676 | && parts.index | |
5677 | && (!REG_P (parts.index) || REGNO (parts.index) >= FIRST_PSEUDO_REGISTER) | |
5678 | && parts.base != parts.index) | |
5679 | cost++; | |
5680 | ||
5681 | /* AMD-K6 don't like addresses with ModR/M set to 00_xxx_100b, | |
5682 | since it's predecode logic can't detect the length of instructions | |
5683 | and it degenerates to vector decoded. Increase cost of such | |
5684 | addresses here. The penalty is minimally 2 cycles. It may be worthwhile | |
0f290768 | 5685 | to split such addresses or even refuse such addresses at all. |
01329426 JH |
5686 | |
5687 | Following addressing modes are affected: | |
5688 | [base+scale*index] | |
5689 | [scale*index+disp] | |
5690 | [base+index] | |
0f290768 | 5691 | |
01329426 JH |
5692 | The first and last case may be avoidable by explicitly coding the zero in |
5693 | memory address, but I don't have AMD-K6 machine handy to check this | |
5694 | theory. */ | |
5695 | ||
5696 | if (TARGET_K6 | |
5697 | && ((!parts.disp && parts.base && parts.index && parts.scale != 1) | |
5698 | || (parts.disp && !parts.base && parts.index && parts.scale != 1) | |
5699 | || (!parts.disp && parts.base && parts.index && parts.scale == 1))) | |
5700 | cost += 10; | |
0f290768 | 5701 | |
01329426 JH |
5702 | return cost; |
5703 | } | |
5704 | \f | |
b949ea8b JW |
5705 | /* If X is a machine specific address (i.e. a symbol or label being |
5706 | referenced as a displacement from the GOT implemented using an | |
5707 | UNSPEC), then return the base term. Otherwise return X. */ | |
5708 | ||
5709 | rtx | |
b96a374d | 5710 | ix86_find_base_term (rtx x) |
b949ea8b JW |
5711 | { |
5712 | rtx term; | |
5713 | ||
6eb791fc JH |
5714 | if (TARGET_64BIT) |
5715 | { | |
5716 | if (GET_CODE (x) != CONST) | |
5717 | return x; | |
5718 | term = XEXP (x, 0); | |
5719 | if (GET_CODE (term) == PLUS | |
5720 | && (GET_CODE (XEXP (term, 1)) == CONST_INT | |
5721 | || GET_CODE (XEXP (term, 1)) == CONST_DOUBLE)) | |
5722 | term = XEXP (term, 0); | |
5723 | if (GET_CODE (term) != UNSPEC | |
8ee41eaf | 5724 | || XINT (term, 1) != UNSPEC_GOTPCREL) |
6eb791fc JH |
5725 | return x; |
5726 | ||
5727 | term = XVECEXP (term, 0, 0); | |
5728 | ||
5729 | if (GET_CODE (term) != SYMBOL_REF | |
5730 | && GET_CODE (term) != LABEL_REF) | |
5731 | return x; | |
5732 | ||
5733 | return term; | |
5734 | } | |
5735 | ||
69bd9368 | 5736 | term = ix86_delegitimize_address (x); |
b949ea8b JW |
5737 | |
5738 | if (GET_CODE (term) != SYMBOL_REF | |
5739 | && GET_CODE (term) != LABEL_REF) | |
5740 | return x; | |
5741 | ||
5742 | return term; | |
5743 | } | |
5744 | \f | |
f996902d RH |
5745 | /* Determine if a given RTX is a valid constant. We already know this |
5746 | satisfies CONSTANT_P. */ | |
5747 | ||
5748 | bool | |
b96a374d | 5749 | legitimate_constant_p (rtx x) |
f996902d RH |
5750 | { |
5751 | rtx inner; | |
5752 | ||
5753 | switch (GET_CODE (x)) | |
5754 | { | |
5755 | case SYMBOL_REF: | |
5756 | /* TLS symbols are not constant. */ | |
5757 | if (tls_symbolic_operand (x, Pmode)) | |
5758 | return false; | |
5759 | break; | |
5760 | ||
5761 | case CONST: | |
5762 | inner = XEXP (x, 0); | |
5763 | ||
5764 | /* Offsets of TLS symbols are never valid. | |
5765 | Discourage CSE from creating them. */ | |
5766 | if (GET_CODE (inner) == PLUS | |
5767 | && tls_symbolic_operand (XEXP (inner, 0), Pmode)) | |
5768 | return false; | |
5769 | ||
799b33a0 JH |
5770 | if (GET_CODE (inner) == PLUS) |
5771 | { | |
5772 | if (GET_CODE (XEXP (inner, 1)) != CONST_INT) | |
5773 | return false; | |
5774 | inner = XEXP (inner, 0); | |
5775 | } | |
5776 | ||
f996902d RH |
5777 | /* Only some unspecs are valid as "constants". */ |
5778 | if (GET_CODE (inner) == UNSPEC) | |
5779 | switch (XINT (inner, 1)) | |
5780 | { | |
5781 | case UNSPEC_TPOFF: | |
cb0e3e3f | 5782 | case UNSPEC_NTPOFF: |
f996902d | 5783 | return local_exec_symbolic_operand (XVECEXP (inner, 0, 0), Pmode); |
cb0e3e3f RH |
5784 | case UNSPEC_DTPOFF: |
5785 | return local_dynamic_symbolic_operand (XVECEXP (inner, 0, 0), Pmode); | |
f996902d RH |
5786 | default: |
5787 | return false; | |
5788 | } | |
5789 | break; | |
5790 | ||
5791 | default: | |
5792 | break; | |
5793 | } | |
5794 | ||
5795 | /* Otherwise we handle everything else in the move patterns. */ | |
5796 | return true; | |
5797 | } | |
5798 | ||
3a04ff64 RH |
5799 | /* Determine if it's legal to put X into the constant pool. This |
5800 | is not possible for the address of thread-local symbols, which | |
5801 | is checked above. */ | |
5802 | ||
5803 | static bool | |
b96a374d | 5804 | ix86_cannot_force_const_mem (rtx x) |
3a04ff64 RH |
5805 | { |
5806 | return !legitimate_constant_p (x); | |
5807 | } | |
5808 | ||
f996902d RH |
5809 | /* Determine if a given RTX is a valid constant address. */ |
5810 | ||
5811 | bool | |
b96a374d | 5812 | constant_address_p (rtx x) |
f996902d | 5813 | { |
a94f136b | 5814 | return CONSTANT_P (x) && legitimate_address_p (Pmode, x, 1); |
f996902d RH |
5815 | } |
5816 | ||
5817 | /* Nonzero if the constant value X is a legitimate general operand | |
fce5a9f2 | 5818 | when generating PIC code. It is given that flag_pic is on and |
f996902d RH |
5819 | that X satisfies CONSTANT_P or is a CONST_DOUBLE. */ |
5820 | ||
5821 | bool | |
b96a374d | 5822 | legitimate_pic_operand_p (rtx x) |
f996902d RH |
5823 | { |
5824 | rtx inner; | |
5825 | ||
5826 | switch (GET_CODE (x)) | |
5827 | { | |
5828 | case CONST: | |
5829 | inner = XEXP (x, 0); | |
5830 | ||
5831 | /* Only some unspecs are valid as "constants". */ | |
5832 | if (GET_CODE (inner) == UNSPEC) | |
5833 | switch (XINT (inner, 1)) | |
5834 | { | |
5835 | case UNSPEC_TPOFF: | |
5836 | return local_exec_symbolic_operand (XVECEXP (inner, 0, 0), Pmode); | |
f996902d RH |
5837 | default: |
5838 | return false; | |
5839 | } | |
5efb1046 | 5840 | /* FALLTHRU */ |
f996902d RH |
5841 | |
5842 | case SYMBOL_REF: | |
5843 | case LABEL_REF: | |
5844 | return legitimate_pic_address_disp_p (x); | |
5845 | ||
5846 | default: | |
5847 | return true; | |
5848 | } | |
5849 | } | |
5850 | ||
e075ae69 RH |
5851 | /* Determine if a given CONST RTX is a valid memory displacement |
5852 | in PIC mode. */ | |
0f290768 | 5853 | |
59be65f6 | 5854 | int |
8d531ab9 | 5855 | legitimate_pic_address_disp_p (rtx disp) |
91bb873f | 5856 | { |
f996902d RH |
5857 | bool saw_plus; |
5858 | ||
6eb791fc JH |
5859 | /* In 64bit mode we can allow direct addresses of symbols and labels |
5860 | when they are not dynamic symbols. */ | |
c05dbe81 JH |
5861 | if (TARGET_64BIT) |
5862 | { | |
5863 | /* TLS references should always be enclosed in UNSPEC. */ | |
5864 | if (tls_symbolic_operand (disp, GET_MODE (disp))) | |
5865 | return 0; | |
5866 | if (GET_CODE (disp) == SYMBOL_REF | |
5867 | && ix86_cmodel == CM_SMALL_PIC | |
2ae5ae57 | 5868 | && SYMBOL_REF_LOCAL_P (disp)) |
c05dbe81 JH |
5869 | return 1; |
5870 | if (GET_CODE (disp) == LABEL_REF) | |
5871 | return 1; | |
5872 | if (GET_CODE (disp) == CONST | |
a132b6a8 JJ |
5873 | && GET_CODE (XEXP (disp, 0)) == PLUS) |
5874 | { | |
5875 | rtx op0 = XEXP (XEXP (disp, 0), 0); | |
5876 | rtx op1 = XEXP (XEXP (disp, 0), 1); | |
5877 | ||
5878 | /* TLS references should always be enclosed in UNSPEC. */ | |
5879 | if (tls_symbolic_operand (op0, GET_MODE (op0))) | |
5880 | return 0; | |
5881 | if (((GET_CODE (op0) == SYMBOL_REF | |
5882 | && ix86_cmodel == CM_SMALL_PIC | |
5883 | && SYMBOL_REF_LOCAL_P (op0)) | |
5884 | || GET_CODE (op0) == LABEL_REF) | |
5885 | && GET_CODE (op1) == CONST_INT | |
5886 | && INTVAL (op1) < 16*1024*1024 | |
5887 | && INTVAL (op1) >= -16*1024*1024) | |
5888 | return 1; | |
5889 | } | |
c05dbe81 | 5890 | } |
91bb873f RH |
5891 | if (GET_CODE (disp) != CONST) |
5892 | return 0; | |
5893 | disp = XEXP (disp, 0); | |
5894 | ||
6eb791fc JH |
5895 | if (TARGET_64BIT) |
5896 | { | |
5897 | /* We are unsafe to allow PLUS expressions. This limit allowed distance | |
5898 | of GOT tables. We should not need these anyway. */ | |
5899 | if (GET_CODE (disp) != UNSPEC | |
8ee41eaf | 5900 | || XINT (disp, 1) != UNSPEC_GOTPCREL) |
6eb791fc JH |
5901 | return 0; |
5902 | ||
5903 | if (GET_CODE (XVECEXP (disp, 0, 0)) != SYMBOL_REF | |
5904 | && GET_CODE (XVECEXP (disp, 0, 0)) != LABEL_REF) | |
5905 | return 0; | |
5906 | return 1; | |
5907 | } | |
5908 | ||
f996902d | 5909 | saw_plus = false; |
91bb873f RH |
5910 | if (GET_CODE (disp) == PLUS) |
5911 | { | |
5912 | if (GET_CODE (XEXP (disp, 1)) != CONST_INT) | |
5913 | return 0; | |
5914 | disp = XEXP (disp, 0); | |
f996902d | 5915 | saw_plus = true; |
91bb873f RH |
5916 | } |
5917 | ||
b069de3b SS |
5918 | /* Allow {LABEL | SYMBOL}_REF - SYMBOL_REF-FOR-PICBASE for Mach-O. */ |
5919 | if (TARGET_MACHO && GET_CODE (disp) == MINUS) | |
5920 | { | |
5921 | if (GET_CODE (XEXP (disp, 0)) == LABEL_REF | |
5922 | || GET_CODE (XEXP (disp, 0)) == SYMBOL_REF) | |
5923 | if (GET_CODE (XEXP (disp, 1)) == SYMBOL_REF) | |
5924 | { | |
5925 | const char *sym_name = XSTR (XEXP (disp, 1), 0); | |
86ecdfb6 | 5926 | if (! strcmp (sym_name, "<pic base>")) |
b069de3b SS |
5927 | return 1; |
5928 | } | |
5929 | } | |
5930 | ||
8ee41eaf | 5931 | if (GET_CODE (disp) != UNSPEC) |
91bb873f RH |
5932 | return 0; |
5933 | ||
623fe810 RH |
5934 | switch (XINT (disp, 1)) |
5935 | { | |
8ee41eaf | 5936 | case UNSPEC_GOT: |
f996902d RH |
5937 | if (saw_plus) |
5938 | return false; | |
623fe810 | 5939 | return GET_CODE (XVECEXP (disp, 0, 0)) == SYMBOL_REF; |
8ee41eaf | 5940 | case UNSPEC_GOTOFF: |
799b33a0 JH |
5941 | if (GET_CODE (XVECEXP (disp, 0, 0)) == SYMBOL_REF |
5942 | || GET_CODE (XVECEXP (disp, 0, 0)) == LABEL_REF) | |
5943 | return local_symbolic_operand (XVECEXP (disp, 0, 0), Pmode); | |
5944 | return false; | |
f996902d | 5945 | case UNSPEC_GOTTPOFF: |
dea73790 JJ |
5946 | case UNSPEC_GOTNTPOFF: |
5947 | case UNSPEC_INDNTPOFF: | |
f996902d RH |
5948 | if (saw_plus) |
5949 | return false; | |
5950 | return initial_exec_symbolic_operand (XVECEXP (disp, 0, 0), Pmode); | |
5951 | case UNSPEC_NTPOFF: | |
f996902d RH |
5952 | return local_exec_symbolic_operand (XVECEXP (disp, 0, 0), Pmode); |
5953 | case UNSPEC_DTPOFF: | |
f996902d | 5954 | return local_dynamic_symbolic_operand (XVECEXP (disp, 0, 0), Pmode); |
623fe810 | 5955 | } |
fce5a9f2 | 5956 | |
623fe810 | 5957 | return 0; |
91bb873f RH |
5958 | } |
5959 | ||
e075ae69 RH |
5960 | /* GO_IF_LEGITIMATE_ADDRESS recognizes an RTL expression that is a valid |
5961 | memory address for an instruction. The MODE argument is the machine mode | |
5962 | for the MEM expression that wants to use this address. | |
5963 | ||
5964 | It only recognizes address in canonical form. LEGITIMIZE_ADDRESS should | |
5965 | convert common non-canonical forms to canonical form so that they will | |
5966 | be recognized. */ | |
5967 | ||
3b3c6a3f | 5968 | int |
8d531ab9 | 5969 | legitimate_address_p (enum machine_mode mode, rtx addr, int strict) |
3b3c6a3f | 5970 | { |
e075ae69 RH |
5971 | struct ix86_address parts; |
5972 | rtx base, index, disp; | |
5973 | HOST_WIDE_INT scale; | |
5974 | const char *reason = NULL; | |
5975 | rtx reason_rtx = NULL_RTX; | |
3b3c6a3f MM |
5976 | |
5977 | if (TARGET_DEBUG_ADDR) | |
5978 | { | |
5979 | fprintf (stderr, | |
e9a25f70 | 5980 | "\n======\nGO_IF_LEGITIMATE_ADDRESS, mode = %s, strict = %d\n", |
3b3c6a3f | 5981 | GET_MODE_NAME (mode), strict); |
3b3c6a3f MM |
5982 | debug_rtx (addr); |
5983 | } | |
5984 | ||
b446e5a2 | 5985 | if (ix86_decompose_address (addr, &parts) <= 0) |
3b3c6a3f | 5986 | { |
e075ae69 | 5987 | reason = "decomposition failed"; |
50e60bc3 | 5988 | goto report_error; |
3b3c6a3f MM |
5989 | } |
5990 | ||
e075ae69 RH |
5991 | base = parts.base; |
5992 | index = parts.index; | |
5993 | disp = parts.disp; | |
5994 | scale = parts.scale; | |
91f0226f | 5995 | |
e075ae69 | 5996 | /* Validate base register. |
e9a25f70 JL |
5997 | |
5998 | Don't allow SUBREG's here, it can lead to spill failures when the base | |
3d771dfd MM |
5999 | is one word out of a two word structure, which is represented internally |
6000 | as a DImode int. */ | |
e9a25f70 | 6001 | |
3b3c6a3f MM |
6002 | if (base) |
6003 | { | |
e075ae69 RH |
6004 | reason_rtx = base; |
6005 | ||
90e4e4c5 | 6006 | if (GET_CODE (base) != REG) |
3b3c6a3f | 6007 | { |
e075ae69 | 6008 | reason = "base is not a register"; |
50e60bc3 | 6009 | goto report_error; |
3b3c6a3f MM |
6010 | } |
6011 | ||
c954bd01 RH |
6012 | if (GET_MODE (base) != Pmode) |
6013 | { | |
e075ae69 | 6014 | reason = "base is not in Pmode"; |
50e60bc3 | 6015 | goto report_error; |
c954bd01 RH |
6016 | } |
6017 | ||
90e4e4c5 RH |
6018 | if ((strict && ! REG_OK_FOR_BASE_STRICT_P (base)) |
6019 | || (! strict && ! REG_OK_FOR_BASE_NONSTRICT_P (base))) | |
3b3c6a3f | 6020 | { |
e075ae69 | 6021 | reason = "base is not valid"; |
50e60bc3 | 6022 | goto report_error; |
3b3c6a3f MM |
6023 | } |
6024 | } | |
6025 | ||
e075ae69 | 6026 | /* Validate index register. |
e9a25f70 JL |
6027 | |
6028 | Don't allow SUBREG's here, it can lead to spill failures when the index | |
3d771dfd MM |
6029 | is one word out of a two word structure, which is represented internally |
6030 | as a DImode int. */ | |
e075ae69 RH |
6031 | |
6032 | if (index) | |
3b3c6a3f | 6033 | { |
e075ae69 RH |
6034 | reason_rtx = index; |
6035 | ||
90e4e4c5 | 6036 | if (GET_CODE (index) != REG) |
3b3c6a3f | 6037 | { |
e075ae69 | 6038 | reason = "index is not a register"; |
50e60bc3 | 6039 | goto report_error; |
3b3c6a3f MM |
6040 | } |
6041 | ||
e075ae69 | 6042 | if (GET_MODE (index) != Pmode) |
c954bd01 | 6043 | { |
e075ae69 | 6044 | reason = "index is not in Pmode"; |
50e60bc3 | 6045 | goto report_error; |
c954bd01 RH |
6046 | } |
6047 | ||
90e4e4c5 RH |
6048 | if ((strict && ! REG_OK_FOR_INDEX_STRICT_P (index)) |
6049 | || (! strict && ! REG_OK_FOR_INDEX_NONSTRICT_P (index))) | |
3b3c6a3f | 6050 | { |
e075ae69 | 6051 | reason = "index is not valid"; |
50e60bc3 | 6052 | goto report_error; |
3b3c6a3f MM |
6053 | } |
6054 | } | |
3b3c6a3f | 6055 | |
e075ae69 RH |
6056 | /* Validate scale factor. */ |
6057 | if (scale != 1) | |
3b3c6a3f | 6058 | { |
e075ae69 RH |
6059 | reason_rtx = GEN_INT (scale); |
6060 | if (!index) | |
3b3c6a3f | 6061 | { |
e075ae69 | 6062 | reason = "scale without index"; |
50e60bc3 | 6063 | goto report_error; |
3b3c6a3f MM |
6064 | } |
6065 | ||
e075ae69 | 6066 | if (scale != 2 && scale != 4 && scale != 8) |
3b3c6a3f | 6067 | { |
e075ae69 | 6068 | reason = "scale is not a valid multiplier"; |
50e60bc3 | 6069 | goto report_error; |
3b3c6a3f MM |
6070 | } |
6071 | } | |
6072 | ||
91bb873f | 6073 | /* Validate displacement. */ |
3b3c6a3f MM |
6074 | if (disp) |
6075 | { | |
e075ae69 RH |
6076 | reason_rtx = disp; |
6077 | ||
f996902d RH |
6078 | if (GET_CODE (disp) == CONST |
6079 | && GET_CODE (XEXP (disp, 0)) == UNSPEC) | |
6080 | switch (XINT (XEXP (disp, 0), 1)) | |
6081 | { | |
6082 | case UNSPEC_GOT: | |
6083 | case UNSPEC_GOTOFF: | |
6084 | case UNSPEC_GOTPCREL: | |
6085 | if (!flag_pic) | |
6086 | abort (); | |
6087 | goto is_legitimate_pic; | |
6088 | ||
6089 | case UNSPEC_GOTTPOFF: | |
dea73790 JJ |
6090 | case UNSPEC_GOTNTPOFF: |
6091 | case UNSPEC_INDNTPOFF: | |
f996902d RH |
6092 | case UNSPEC_NTPOFF: |
6093 | case UNSPEC_DTPOFF: | |
6094 | break; | |
6095 | ||
6096 | default: | |
6097 | reason = "invalid address unspec"; | |
6098 | goto report_error; | |
6099 | } | |
6100 | ||
b069de3b SS |
6101 | else if (flag_pic && (SYMBOLIC_CONST (disp) |
6102 | #if TARGET_MACHO | |
6103 | && !machopic_operand_p (disp) | |
6104 | #endif | |
6105 | )) | |
3b3c6a3f | 6106 | { |
f996902d | 6107 | is_legitimate_pic: |
0d7d98ee JH |
6108 | if (TARGET_64BIT && (index || base)) |
6109 | { | |
75d38379 JJ |
6110 | /* foo@dtpoff(%rX) is ok. */ |
6111 | if (GET_CODE (disp) != CONST | |
6112 | || GET_CODE (XEXP (disp, 0)) != PLUS | |
6113 | || GET_CODE (XEXP (XEXP (disp, 0), 0)) != UNSPEC | |
6114 | || GET_CODE (XEXP (XEXP (disp, 0), 1)) != CONST_INT | |
6115 | || (XINT (XEXP (XEXP (disp, 0), 0), 1) != UNSPEC_DTPOFF | |
6116 | && XINT (XEXP (XEXP (disp, 0), 0), 1) != UNSPEC_NTPOFF)) | |
6117 | { | |
6118 | reason = "non-constant pic memory reference"; | |
6119 | goto report_error; | |
6120 | } | |
0d7d98ee | 6121 | } |
75d38379 | 6122 | else if (! legitimate_pic_address_disp_p (disp)) |
91bb873f | 6123 | { |
e075ae69 | 6124 | reason = "displacement is an invalid pic construct"; |
50e60bc3 | 6125 | goto report_error; |
91bb873f RH |
6126 | } |
6127 | ||
4e9efe54 | 6128 | /* This code used to verify that a symbolic pic displacement |
0f290768 KH |
6129 | includes the pic_offset_table_rtx register. |
6130 | ||
4e9efe54 JH |
6131 | While this is good idea, unfortunately these constructs may |
6132 | be created by "adds using lea" optimization for incorrect | |
6133 | code like: | |
6134 | ||
6135 | int a; | |
6136 | int foo(int i) | |
6137 | { | |
6138 | return *(&a+i); | |
6139 | } | |
6140 | ||
50e60bc3 | 6141 | This code is nonsensical, but results in addressing |
4e9efe54 | 6142 | GOT table with pic_offset_table_rtx base. We can't |
f710504c | 6143 | just refuse it easily, since it gets matched by |
4e9efe54 JH |
6144 | "addsi3" pattern, that later gets split to lea in the |
6145 | case output register differs from input. While this | |
6146 | can be handled by separate addsi pattern for this case | |
6147 | that never results in lea, this seems to be easier and | |
6148 | correct fix for crash to disable this test. */ | |
3b3c6a3f | 6149 | } |
a94f136b JH |
6150 | else if (GET_CODE (disp) != LABEL_REF |
6151 | && GET_CODE (disp) != CONST_INT | |
6152 | && (GET_CODE (disp) != CONST | |
6153 | || !legitimate_constant_p (disp)) | |
6154 | && (GET_CODE (disp) != SYMBOL_REF | |
6155 | || !legitimate_constant_p (disp))) | |
f996902d RH |
6156 | { |
6157 | reason = "displacement is not constant"; | |
6158 | goto report_error; | |
6159 | } | |
c05dbe81 JH |
6160 | else if (TARGET_64BIT && !x86_64_sign_extended_value (disp)) |
6161 | { | |
6162 | reason = "displacement is out of range"; | |
6163 | goto report_error; | |
6164 | } | |
3b3c6a3f MM |
6165 | } |
6166 | ||
e075ae69 | 6167 | /* Everything looks valid. */ |
3b3c6a3f | 6168 | if (TARGET_DEBUG_ADDR) |
e075ae69 | 6169 | fprintf (stderr, "Success.\n"); |
3b3c6a3f | 6170 | return TRUE; |
e075ae69 | 6171 | |
5bf0ebab | 6172 | report_error: |
e075ae69 RH |
6173 | if (TARGET_DEBUG_ADDR) |
6174 | { | |
6175 | fprintf (stderr, "Error: %s\n", reason); | |
6176 | debug_rtx (reason_rtx); | |
6177 | } | |
6178 | return FALSE; | |
3b3c6a3f | 6179 | } |
3b3c6a3f | 6180 | \f |
55efb413 JW |
6181 | /* Return an unique alias set for the GOT. */ |
6182 | ||
0f290768 | 6183 | static HOST_WIDE_INT |
b96a374d | 6184 | ix86_GOT_alias_set (void) |
55efb413 | 6185 | { |
5bf0ebab RH |
6186 | static HOST_WIDE_INT set = -1; |
6187 | if (set == -1) | |
6188 | set = new_alias_set (); | |
6189 | return set; | |
0f290768 | 6190 | } |
55efb413 | 6191 | |
3b3c6a3f MM |
6192 | /* Return a legitimate reference for ORIG (an address) using the |
6193 | register REG. If REG is 0, a new pseudo is generated. | |
6194 | ||
91bb873f | 6195 | There are two types of references that must be handled: |
3b3c6a3f MM |
6196 | |
6197 | 1. Global data references must load the address from the GOT, via | |
6198 | the PIC reg. An insn is emitted to do this load, and the reg is | |
6199 | returned. | |
6200 | ||
91bb873f RH |
6201 | 2. Static data references, constant pool addresses, and code labels |
6202 | compute the address as an offset from the GOT, whose base is in | |
2ae5ae57 | 6203 | the PIC reg. Static data objects have SYMBOL_FLAG_LOCAL set to |
91bb873f RH |
6204 | differentiate them from global data objects. The returned |
6205 | address is the PIC reg + an unspec constant. | |
3b3c6a3f MM |
6206 | |
6207 | GO_IF_LEGITIMATE_ADDRESS rejects symbolic references unless the PIC | |
91bb873f | 6208 | reg also appears in the address. */ |
3b3c6a3f MM |
6209 | |
6210 | rtx | |
b96a374d | 6211 | legitimize_pic_address (rtx orig, rtx reg) |
3b3c6a3f MM |
6212 | { |
6213 | rtx addr = orig; | |
6214 | rtx new = orig; | |
91bb873f | 6215 | rtx base; |
3b3c6a3f | 6216 | |
b069de3b SS |
6217 | #if TARGET_MACHO |
6218 | if (reg == 0) | |
6219 | reg = gen_reg_rtx (Pmode); | |
6220 | /* Use the generic Mach-O PIC machinery. */ | |
6221 | return machopic_legitimize_pic_address (orig, GET_MODE (orig), reg); | |
6222 | #endif | |
6223 | ||
c05dbe81 JH |
6224 | if (TARGET_64BIT && legitimate_pic_address_disp_p (addr)) |
6225 | new = addr; | |
6226 | else if (!TARGET_64BIT && local_symbolic_operand (addr, Pmode)) | |
3b3c6a3f | 6227 | { |
c05dbe81 JH |
6228 | /* This symbol may be referenced via a displacement from the PIC |
6229 | base address (@GOTOFF). */ | |
3b3c6a3f | 6230 | |
c05dbe81 JH |
6231 | if (reload_in_progress) |
6232 | regs_ever_live[PIC_OFFSET_TABLE_REGNUM] = 1; | |
799b33a0 JH |
6233 | if (GET_CODE (addr) == CONST) |
6234 | addr = XEXP (addr, 0); | |
6235 | if (GET_CODE (addr) == PLUS) | |
6236 | { | |
6237 | new = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, XEXP (addr, 0)), UNSPEC_GOTOFF); | |
6238 | new = gen_rtx_PLUS (Pmode, new, XEXP (addr, 1)); | |
6239 | } | |
6240 | else | |
6241 | new = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, addr), UNSPEC_GOTOFF); | |
c05dbe81 JH |
6242 | new = gen_rtx_CONST (Pmode, new); |
6243 | new = gen_rtx_PLUS (Pmode, pic_offset_table_rtx, new); | |
3b3c6a3f | 6244 | |
c05dbe81 JH |
6245 | if (reg != 0) |
6246 | { | |
6247 | emit_move_insn (reg, new); | |
6248 | new = reg; | |
6249 | } | |
3b3c6a3f | 6250 | } |
91bb873f | 6251 | else if (GET_CODE (addr) == SYMBOL_REF) |
3b3c6a3f | 6252 | { |
14f73b5a JH |
6253 | if (TARGET_64BIT) |
6254 | { | |
8ee41eaf | 6255 | new = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, addr), UNSPEC_GOTPCREL); |
14f73b5a JH |
6256 | new = gen_rtx_CONST (Pmode, new); |
6257 | new = gen_rtx_MEM (Pmode, new); | |
6258 | RTX_UNCHANGING_P (new) = 1; | |
6259 | set_mem_alias_set (new, ix86_GOT_alias_set ()); | |
6260 | ||
6261 | if (reg == 0) | |
6262 | reg = gen_reg_rtx (Pmode); | |
6263 | /* Use directly gen_movsi, otherwise the address is loaded | |
6264 | into register for CSE. We don't want to CSE this addresses, | |
6265 | instead we CSE addresses from the GOT table, so skip this. */ | |
6266 | emit_insn (gen_movsi (reg, new)); | |
6267 | new = reg; | |
6268 | } | |
6269 | else | |
6270 | { | |
6271 | /* This symbol must be referenced via a load from the | |
6272 | Global Offset Table (@GOT). */ | |
3b3c6a3f | 6273 | |
66edd3b4 RH |
6274 | if (reload_in_progress) |
6275 | regs_ever_live[PIC_OFFSET_TABLE_REGNUM] = 1; | |
8ee41eaf | 6276 | new = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, addr), UNSPEC_GOT); |
14f73b5a JH |
6277 | new = gen_rtx_CONST (Pmode, new); |
6278 | new = gen_rtx_PLUS (Pmode, pic_offset_table_rtx, new); | |
6279 | new = gen_rtx_MEM (Pmode, new); | |
6280 | RTX_UNCHANGING_P (new) = 1; | |
6281 | set_mem_alias_set (new, ix86_GOT_alias_set ()); | |
3b3c6a3f | 6282 | |
14f73b5a JH |
6283 | if (reg == 0) |
6284 | reg = gen_reg_rtx (Pmode); | |
6285 | emit_move_insn (reg, new); | |
6286 | new = reg; | |
6287 | } | |
0f290768 | 6288 | } |
91bb873f RH |
6289 | else |
6290 | { | |
6291 | if (GET_CODE (addr) == CONST) | |
3b3c6a3f | 6292 | { |
91bb873f | 6293 | addr = XEXP (addr, 0); |
e3c8ea67 RH |
6294 | |
6295 | /* We must match stuff we generate before. Assume the only | |
6296 | unspecs that can get here are ours. Not that we could do | |
43f3a59d | 6297 | anything with them anyway.... */ |
e3c8ea67 RH |
6298 | if (GET_CODE (addr) == UNSPEC |
6299 | || (GET_CODE (addr) == PLUS | |
6300 | && GET_CODE (XEXP (addr, 0)) == UNSPEC)) | |
6301 | return orig; | |
6302 | if (GET_CODE (addr) != PLUS) | |
564d80f4 | 6303 | abort (); |
3b3c6a3f | 6304 | } |
91bb873f RH |
6305 | if (GET_CODE (addr) == PLUS) |
6306 | { | |
6307 | rtx op0 = XEXP (addr, 0), op1 = XEXP (addr, 1); | |
e9a25f70 | 6308 | |
91bb873f RH |
6309 | /* Check first to see if this is a constant offset from a @GOTOFF |
6310 | symbol reference. */ | |
623fe810 | 6311 | if (local_symbolic_operand (op0, Pmode) |
91bb873f RH |
6312 | && GET_CODE (op1) == CONST_INT) |
6313 | { | |
6eb791fc JH |
6314 | if (!TARGET_64BIT) |
6315 | { | |
66edd3b4 RH |
6316 | if (reload_in_progress) |
6317 | regs_ever_live[PIC_OFFSET_TABLE_REGNUM] = 1; | |
8ee41eaf RH |
6318 | new = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, op0), |
6319 | UNSPEC_GOTOFF); | |
6eb791fc JH |
6320 | new = gen_rtx_PLUS (Pmode, new, op1); |
6321 | new = gen_rtx_CONST (Pmode, new); | |
6322 | new = gen_rtx_PLUS (Pmode, pic_offset_table_rtx, new); | |
91bb873f | 6323 | |
6eb791fc JH |
6324 | if (reg != 0) |
6325 | { | |
6326 | emit_move_insn (reg, new); | |
6327 | new = reg; | |
6328 | } | |
6329 | } | |
6330 | else | |
91bb873f | 6331 | { |
75d38379 JJ |
6332 | if (INTVAL (op1) < -16*1024*1024 |
6333 | || INTVAL (op1) >= 16*1024*1024) | |
6334 | new = gen_rtx_PLUS (Pmode, op0, force_reg (Pmode, op1)); | |
91bb873f RH |
6335 | } |
6336 | } | |
6337 | else | |
6338 | { | |
6339 | base = legitimize_pic_address (XEXP (addr, 0), reg); | |
6340 | new = legitimize_pic_address (XEXP (addr, 1), | |
6341 | base == reg ? NULL_RTX : reg); | |
6342 | ||
6343 | if (GET_CODE (new) == CONST_INT) | |
6344 | new = plus_constant (base, INTVAL (new)); | |
6345 | else | |
6346 | { | |
6347 | if (GET_CODE (new) == PLUS && CONSTANT_P (XEXP (new, 1))) | |
6348 | { | |
6349 | base = gen_rtx_PLUS (Pmode, base, XEXP (new, 0)); | |
6350 | new = XEXP (new, 1); | |
6351 | } | |
6352 | new = gen_rtx_PLUS (Pmode, base, new); | |
6353 | } | |
6354 | } | |
6355 | } | |
3b3c6a3f MM |
6356 | } |
6357 | return new; | |
6358 | } | |
6359 | \f | |
74dc3e94 | 6360 | /* Load the thread pointer. If TO_REG is true, force it into a register. */ |
f996902d RH |
6361 | |
6362 | static rtx | |
b96a374d | 6363 | get_thread_pointer (int to_reg) |
f996902d | 6364 | { |
74dc3e94 | 6365 | rtx tp, reg, insn; |
f996902d RH |
6366 | |
6367 | tp = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, const0_rtx), UNSPEC_TP); | |
74dc3e94 RH |
6368 | if (!to_reg) |
6369 | return tp; | |
f996902d | 6370 | |
74dc3e94 RH |
6371 | reg = gen_reg_rtx (Pmode); |
6372 | insn = gen_rtx_SET (VOIDmode, reg, tp); | |
6373 | insn = emit_insn (insn); | |
6374 | ||
6375 | return reg; | |
6376 | } | |
6377 | ||
6378 | /* A subroutine of legitimize_address and ix86_expand_move. FOR_MOV is | |
6379 | false if we expect this to be used for a memory address and true if | |
6380 | we expect to load the address into a register. */ | |
6381 | ||
6382 | static rtx | |
b96a374d | 6383 | legitimize_tls_address (rtx x, enum tls_model model, int for_mov) |
74dc3e94 RH |
6384 | { |
6385 | rtx dest, base, off, pic; | |
6386 | int type; | |
6387 | ||
6388 | switch (model) | |
6389 | { | |
6390 | case TLS_MODEL_GLOBAL_DYNAMIC: | |
6391 | dest = gen_reg_rtx (Pmode); | |
6392 | if (TARGET_64BIT) | |
6393 | { | |
6394 | rtx rax = gen_rtx_REG (Pmode, 0), insns; | |
6395 | ||
6396 | start_sequence (); | |
6397 | emit_call_insn (gen_tls_global_dynamic_64 (rax, x)); | |
6398 | insns = get_insns (); | |
6399 | end_sequence (); | |
6400 | ||
6401 | emit_libcall_block (insns, dest, rax, x); | |
6402 | } | |
6403 | else | |
6404 | emit_insn (gen_tls_global_dynamic_32 (dest, x)); | |
6405 | break; | |
6406 | ||
6407 | case TLS_MODEL_LOCAL_DYNAMIC: | |
6408 | base = gen_reg_rtx (Pmode); | |
6409 | if (TARGET_64BIT) | |
6410 | { | |
6411 | rtx rax = gen_rtx_REG (Pmode, 0), insns, note; | |
6412 | ||
6413 | start_sequence (); | |
6414 | emit_call_insn (gen_tls_local_dynamic_base_64 (rax)); | |
6415 | insns = get_insns (); | |
6416 | end_sequence (); | |
6417 | ||
6418 | note = gen_rtx_EXPR_LIST (VOIDmode, const0_rtx, NULL); | |
6419 | note = gen_rtx_EXPR_LIST (VOIDmode, ix86_tls_get_addr (), note); | |
6420 | emit_libcall_block (insns, base, rax, note); | |
6421 | } | |
6422 | else | |
6423 | emit_insn (gen_tls_local_dynamic_base_32 (base)); | |
6424 | ||
6425 | off = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, x), UNSPEC_DTPOFF); | |
6426 | off = gen_rtx_CONST (Pmode, off); | |
6427 | ||
6428 | return gen_rtx_PLUS (Pmode, base, off); | |
6429 | ||
6430 | case TLS_MODEL_INITIAL_EXEC: | |
6431 | if (TARGET_64BIT) | |
6432 | { | |
6433 | pic = NULL; | |
6434 | type = UNSPEC_GOTNTPOFF; | |
6435 | } | |
6436 | else if (flag_pic) | |
6437 | { | |
6438 | if (reload_in_progress) | |
6439 | regs_ever_live[PIC_OFFSET_TABLE_REGNUM] = 1; | |
6440 | pic = pic_offset_table_rtx; | |
6441 | type = TARGET_GNU_TLS ? UNSPEC_GOTNTPOFF : UNSPEC_GOTTPOFF; | |
6442 | } | |
6443 | else if (!TARGET_GNU_TLS) | |
6444 | { | |
6445 | pic = gen_reg_rtx (Pmode); | |
6446 | emit_insn (gen_set_got (pic)); | |
6447 | type = UNSPEC_GOTTPOFF; | |
6448 | } | |
6449 | else | |
6450 | { | |
6451 | pic = NULL; | |
6452 | type = UNSPEC_INDNTPOFF; | |
6453 | } | |
6454 | ||
6455 | off = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, x), type); | |
6456 | off = gen_rtx_CONST (Pmode, off); | |
6457 | if (pic) | |
6458 | off = gen_rtx_PLUS (Pmode, pic, off); | |
6459 | off = gen_rtx_MEM (Pmode, off); | |
6460 | RTX_UNCHANGING_P (off) = 1; | |
6461 | set_mem_alias_set (off, ix86_GOT_alias_set ()); | |
6462 | ||
6463 | if (TARGET_64BIT || TARGET_GNU_TLS) | |
6464 | { | |
6465 | base = get_thread_pointer (for_mov || !TARGET_TLS_DIRECT_SEG_REFS); | |
6466 | off = force_reg (Pmode, off); | |
6467 | return gen_rtx_PLUS (Pmode, base, off); | |
6468 | } | |
6469 | else | |
6470 | { | |
6471 | base = get_thread_pointer (true); | |
6472 | dest = gen_reg_rtx (Pmode); | |
6473 | emit_insn (gen_subsi3 (dest, base, off)); | |
6474 | } | |
6475 | break; | |
6476 | ||
6477 | case TLS_MODEL_LOCAL_EXEC: | |
6478 | off = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, x), | |
6479 | (TARGET_64BIT || TARGET_GNU_TLS) | |
6480 | ? UNSPEC_NTPOFF : UNSPEC_TPOFF); | |
6481 | off = gen_rtx_CONST (Pmode, off); | |
6482 | ||
6483 | if (TARGET_64BIT || TARGET_GNU_TLS) | |
6484 | { | |
6485 | base = get_thread_pointer (for_mov || !TARGET_TLS_DIRECT_SEG_REFS); | |
6486 | return gen_rtx_PLUS (Pmode, base, off); | |
6487 | } | |
6488 | else | |
6489 | { | |
6490 | base = get_thread_pointer (true); | |
6491 | dest = gen_reg_rtx (Pmode); | |
6492 | emit_insn (gen_subsi3 (dest, base, off)); | |
6493 | } | |
6494 | break; | |
6495 | ||
6496 | default: | |
6497 | abort (); | |
6498 | } | |
6499 | ||
6500 | return dest; | |
f996902d | 6501 | } |
fce5a9f2 | 6502 | |
3b3c6a3f MM |
6503 | /* Try machine-dependent ways of modifying an illegitimate address |
6504 | to be legitimate. If we find one, return the new, valid address. | |
6505 | This macro is used in only one place: `memory_address' in explow.c. | |
6506 | ||
6507 | OLDX is the address as it was before break_out_memory_refs was called. | |
6508 | In some cases it is useful to look at this to decide what needs to be done. | |
6509 | ||
6510 | MODE and WIN are passed so that this macro can use | |
6511 | GO_IF_LEGITIMATE_ADDRESS. | |
6512 | ||
6513 | It is always safe for this macro to do nothing. It exists to recognize | |
6514 | opportunities to optimize the output. | |
6515 | ||
6516 | For the 80386, we handle X+REG by loading X into a register R and | |
6517 | using R+REG. R will go in a general reg and indexing will be used. | |
6518 | However, if REG is a broken-out memory address or multiplication, | |
6519 | nothing needs to be done because REG can certainly go in a general reg. | |
6520 | ||
6521 | When -fpic is used, special handling is needed for symbolic references. | |
6522 | See comments by legitimize_pic_address in i386.c for details. */ | |
6523 | ||
6524 | rtx | |
8d531ab9 | 6525 | legitimize_address (rtx x, rtx oldx ATTRIBUTE_UNUSED, enum machine_mode mode) |
3b3c6a3f MM |
6526 | { |
6527 | int changed = 0; | |
6528 | unsigned log; | |
6529 | ||
6530 | if (TARGET_DEBUG_ADDR) | |
6531 | { | |
e9a25f70 JL |
6532 | fprintf (stderr, "\n==========\nLEGITIMIZE_ADDRESS, mode = %s\n", |
6533 | GET_MODE_NAME (mode)); | |
3b3c6a3f MM |
6534 | debug_rtx (x); |
6535 | } | |
6536 | ||
f996902d RH |
6537 | log = tls_symbolic_operand (x, mode); |
6538 | if (log) | |
74dc3e94 | 6539 | return legitimize_tls_address (x, log, false); |
f996902d | 6540 | |
3b3c6a3f MM |
6541 | if (flag_pic && SYMBOLIC_CONST (x)) |
6542 | return legitimize_pic_address (x, 0); | |
6543 | ||
6544 | /* Canonicalize shifts by 0, 1, 2, 3 into multiply */ | |
6545 | if (GET_CODE (x) == ASHIFT | |
6546 | && GET_CODE (XEXP (x, 1)) == CONST_INT | |
b531087a | 6547 | && (log = (unsigned) exact_log2 (INTVAL (XEXP (x, 1)))) < 4) |
3b3c6a3f MM |
6548 | { |
6549 | changed = 1; | |
a269a03c JC |
6550 | x = gen_rtx_MULT (Pmode, force_reg (Pmode, XEXP (x, 0)), |
6551 | GEN_INT (1 << log)); | |
3b3c6a3f MM |
6552 | } |
6553 | ||
6554 | if (GET_CODE (x) == PLUS) | |
6555 | { | |
0f290768 | 6556 | /* Canonicalize shifts by 0, 1, 2, 3 into multiply. */ |
e9a25f70 | 6557 | |
3b3c6a3f MM |
6558 | if (GET_CODE (XEXP (x, 0)) == ASHIFT |
6559 | && GET_CODE (XEXP (XEXP (x, 0), 1)) == CONST_INT | |
b531087a | 6560 | && (log = (unsigned) exact_log2 (INTVAL (XEXP (XEXP (x, 0), 1)))) < 4) |
3b3c6a3f MM |
6561 | { |
6562 | changed = 1; | |
c5c76735 JL |
6563 | XEXP (x, 0) = gen_rtx_MULT (Pmode, |
6564 | force_reg (Pmode, XEXP (XEXP (x, 0), 0)), | |
6565 | GEN_INT (1 << log)); | |
3b3c6a3f MM |
6566 | } |
6567 | ||
6568 | if (GET_CODE (XEXP (x, 1)) == ASHIFT | |
6569 | && GET_CODE (XEXP (XEXP (x, 1), 1)) == CONST_INT | |
b531087a | 6570 | && (log = (unsigned) exact_log2 (INTVAL (XEXP (XEXP (x, 1), 1)))) < 4) |
3b3c6a3f MM |
6571 | { |
6572 | changed = 1; | |
c5c76735 JL |
6573 | XEXP (x, 1) = gen_rtx_MULT (Pmode, |
6574 | force_reg (Pmode, XEXP (XEXP (x, 1), 0)), | |
6575 | GEN_INT (1 << log)); | |
3b3c6a3f MM |
6576 | } |
6577 | ||
0f290768 | 6578 | /* Put multiply first if it isn't already. */ |
3b3c6a3f MM |
6579 | if (GET_CODE (XEXP (x, 1)) == MULT) |
6580 | { | |
6581 | rtx tmp = XEXP (x, 0); | |
6582 | XEXP (x, 0) = XEXP (x, 1); | |
6583 | XEXP (x, 1) = tmp; | |
6584 | changed = 1; | |
6585 | } | |
6586 | ||
6587 | /* Canonicalize (plus (mult (reg) (const)) (plus (reg) (const))) | |
6588 | into (plus (plus (mult (reg) (const)) (reg)) (const)). This can be | |
6589 | created by virtual register instantiation, register elimination, and | |
6590 | similar optimizations. */ | |
6591 | if (GET_CODE (XEXP (x, 0)) == MULT && GET_CODE (XEXP (x, 1)) == PLUS) | |
6592 | { | |
6593 | changed = 1; | |
c5c76735 JL |
6594 | x = gen_rtx_PLUS (Pmode, |
6595 | gen_rtx_PLUS (Pmode, XEXP (x, 0), | |
6596 | XEXP (XEXP (x, 1), 0)), | |
6597 | XEXP (XEXP (x, 1), 1)); | |
3b3c6a3f MM |
6598 | } |
6599 | ||
e9a25f70 JL |
6600 | /* Canonicalize |
6601 | (plus (plus (mult (reg) (const)) (plus (reg) (const))) const) | |
3b3c6a3f MM |
6602 | into (plus (plus (mult (reg) (const)) (reg)) (const)). */ |
6603 | else if (GET_CODE (x) == PLUS && GET_CODE (XEXP (x, 0)) == PLUS | |
6604 | && GET_CODE (XEXP (XEXP (x, 0), 0)) == MULT | |
6605 | && GET_CODE (XEXP (XEXP (x, 0), 1)) == PLUS | |
6606 | && CONSTANT_P (XEXP (x, 1))) | |
6607 | { | |
00c79232 ML |
6608 | rtx constant; |
6609 | rtx other = NULL_RTX; | |
3b3c6a3f MM |
6610 | |
6611 | if (GET_CODE (XEXP (x, 1)) == CONST_INT) | |
6612 | { | |
6613 | constant = XEXP (x, 1); | |
6614 | other = XEXP (XEXP (XEXP (x, 0), 1), 1); | |
6615 | } | |
6616 | else if (GET_CODE (XEXP (XEXP (XEXP (x, 0), 1), 1)) == CONST_INT) | |
6617 | { | |
6618 | constant = XEXP (XEXP (XEXP (x, 0), 1), 1); | |
6619 | other = XEXP (x, 1); | |
6620 | } | |
6621 | else | |
6622 | constant = 0; | |
6623 | ||
6624 | if (constant) | |
6625 | { | |
6626 | changed = 1; | |
c5c76735 JL |
6627 | x = gen_rtx_PLUS (Pmode, |
6628 | gen_rtx_PLUS (Pmode, XEXP (XEXP (x, 0), 0), | |
6629 | XEXP (XEXP (XEXP (x, 0), 1), 0)), | |
6630 | plus_constant (other, INTVAL (constant))); | |
3b3c6a3f MM |
6631 | } |
6632 | } | |
6633 | ||
6634 | if (changed && legitimate_address_p (mode, x, FALSE)) | |
6635 | return x; | |
6636 | ||
6637 | if (GET_CODE (XEXP (x, 0)) == MULT) | |
6638 | { | |
6639 | changed = 1; | |
6640 | XEXP (x, 0) = force_operand (XEXP (x, 0), 0); | |
6641 | } | |
6642 | ||
6643 | if (GET_CODE (XEXP (x, 1)) == MULT) | |
6644 | { | |
6645 | changed = 1; | |
6646 | XEXP (x, 1) = force_operand (XEXP (x, 1), 0); | |
6647 | } | |
6648 | ||
6649 | if (changed | |
6650 | && GET_CODE (XEXP (x, 1)) == REG | |
6651 | && GET_CODE (XEXP (x, 0)) == REG) | |
6652 | return x; | |
6653 | ||
6654 | if (flag_pic && SYMBOLIC_CONST (XEXP (x, 1))) | |
6655 | { | |
6656 | changed = 1; | |
6657 | x = legitimize_pic_address (x, 0); | |
6658 | } | |
6659 | ||
6660 | if (changed && legitimate_address_p (mode, x, FALSE)) | |
6661 | return x; | |
6662 | ||
6663 | if (GET_CODE (XEXP (x, 0)) == REG) | |
6664 | { | |
8d531ab9 KH |
6665 | rtx temp = gen_reg_rtx (Pmode); |
6666 | rtx val = force_operand (XEXP (x, 1), temp); | |
3b3c6a3f MM |
6667 | if (val != temp) |
6668 | emit_move_insn (temp, val); | |
6669 | ||
6670 | XEXP (x, 1) = temp; | |
6671 | return x; | |
6672 | } | |
6673 | ||
6674 | else if (GET_CODE (XEXP (x, 1)) == REG) | |
6675 | { | |
8d531ab9 KH |
6676 | rtx temp = gen_reg_rtx (Pmode); |
6677 | rtx val = force_operand (XEXP (x, 0), temp); | |
3b3c6a3f MM |
6678 | if (val != temp) |
6679 | emit_move_insn (temp, val); | |
6680 | ||
6681 | XEXP (x, 0) = temp; | |
6682 | return x; | |
6683 | } | |
6684 | } | |
6685 | ||
6686 | return x; | |
6687 | } | |
2a2ab3f9 JVA |
6688 | \f |
6689 | /* Print an integer constant expression in assembler syntax. Addition | |
6690 | and subtraction are the only arithmetic that may appear in these | |
6691 | expressions. FILE is the stdio stream to write to, X is the rtx, and | |
6692 | CODE is the operand print code from the output string. */ | |
6693 | ||
6694 | static void | |
b96a374d | 6695 | output_pic_addr_const (FILE *file, rtx x, int code) |
2a2ab3f9 JVA |
6696 | { |
6697 | char buf[256]; | |
6698 | ||
6699 | switch (GET_CODE (x)) | |
6700 | { | |
6701 | case PC: | |
6702 | if (flag_pic) | |
6703 | putc ('.', file); | |
6704 | else | |
6705 | abort (); | |
6706 | break; | |
6707 | ||
6708 | case SYMBOL_REF: | |
91bb873f | 6709 | assemble_name (file, XSTR (x, 0)); |
12969f45 | 6710 | if (!TARGET_MACHO && code == 'P' && ! SYMBOL_REF_LOCAL_P (x)) |
91bb873f | 6711 | fputs ("@PLT", file); |
2a2ab3f9 JVA |
6712 | break; |
6713 | ||
91bb873f RH |
6714 | case LABEL_REF: |
6715 | x = XEXP (x, 0); | |
5efb1046 | 6716 | /* FALLTHRU */ |
2a2ab3f9 JVA |
6717 | case CODE_LABEL: |
6718 | ASM_GENERATE_INTERNAL_LABEL (buf, "L", CODE_LABEL_NUMBER (x)); | |
6719 | assemble_name (asm_out_file, buf); | |
6720 | break; | |
6721 | ||
6722 | case CONST_INT: | |
f64cecad | 6723 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, INTVAL (x)); |
2a2ab3f9 JVA |
6724 | break; |
6725 | ||
6726 | case CONST: | |
6727 | /* This used to output parentheses around the expression, | |
6728 | but that does not work on the 386 (either ATT or BSD assembler). */ | |
6729 | output_pic_addr_const (file, XEXP (x, 0), code); | |
6730 | break; | |
6731 | ||
6732 | case CONST_DOUBLE: | |
6733 | if (GET_MODE (x) == VOIDmode) | |
6734 | { | |
6735 | /* We can use %d if the number is <32 bits and positive. */ | |
6736 | if (CONST_DOUBLE_HIGH (x) || CONST_DOUBLE_LOW (x) < 0) | |
f64cecad JC |
6737 | fprintf (file, "0x%lx%08lx", |
6738 | (unsigned long) CONST_DOUBLE_HIGH (x), | |
6739 | (unsigned long) CONST_DOUBLE_LOW (x)); | |
2a2ab3f9 | 6740 | else |
f64cecad | 6741 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, CONST_DOUBLE_LOW (x)); |
2a2ab3f9 JVA |
6742 | } |
6743 | else | |
6744 | /* We can't handle floating point constants; | |
6745 | PRINT_OPERAND must handle them. */ | |
6746 | output_operand_lossage ("floating constant misused"); | |
6747 | break; | |
6748 | ||
6749 | case PLUS: | |
e9a25f70 | 6750 | /* Some assemblers need integer constants to appear first. */ |
2a2ab3f9 JVA |
6751 | if (GET_CODE (XEXP (x, 0)) == CONST_INT) |
6752 | { | |
2a2ab3f9 | 6753 | output_pic_addr_const (file, XEXP (x, 0), code); |
e075ae69 | 6754 | putc ('+', file); |
e9a25f70 | 6755 | output_pic_addr_const (file, XEXP (x, 1), code); |
2a2ab3f9 | 6756 | } |
91bb873f | 6757 | else if (GET_CODE (XEXP (x, 1)) == CONST_INT) |
2a2ab3f9 | 6758 | { |
2a2ab3f9 | 6759 | output_pic_addr_const (file, XEXP (x, 1), code); |
e075ae69 | 6760 | putc ('+', file); |
e9a25f70 | 6761 | output_pic_addr_const (file, XEXP (x, 0), code); |
2a2ab3f9 | 6762 | } |
91bb873f RH |
6763 | else |
6764 | abort (); | |
2a2ab3f9 JVA |
6765 | break; |
6766 | ||
6767 | case MINUS: | |
b069de3b SS |
6768 | if (!TARGET_MACHO) |
6769 | putc (ASSEMBLER_DIALECT == ASM_INTEL ? '(' : '[', file); | |
2a2ab3f9 | 6770 | output_pic_addr_const (file, XEXP (x, 0), code); |
e075ae69 | 6771 | putc ('-', file); |
2a2ab3f9 | 6772 | output_pic_addr_const (file, XEXP (x, 1), code); |
b069de3b SS |
6773 | if (!TARGET_MACHO) |
6774 | putc (ASSEMBLER_DIALECT == ASM_INTEL ? ')' : ']', file); | |
2a2ab3f9 JVA |
6775 | break; |
6776 | ||
91bb873f RH |
6777 | case UNSPEC: |
6778 | if (XVECLEN (x, 0) != 1) | |
5bf0ebab | 6779 | abort (); |
91bb873f RH |
6780 | output_pic_addr_const (file, XVECEXP (x, 0, 0), code); |
6781 | switch (XINT (x, 1)) | |
77ebd435 | 6782 | { |
8ee41eaf | 6783 | case UNSPEC_GOT: |
77ebd435 AJ |
6784 | fputs ("@GOT", file); |
6785 | break; | |
8ee41eaf | 6786 | case UNSPEC_GOTOFF: |
77ebd435 AJ |
6787 | fputs ("@GOTOFF", file); |
6788 | break; | |
8ee41eaf | 6789 | case UNSPEC_GOTPCREL: |
edfe8595 | 6790 | fputs ("@GOTPCREL(%rip)", file); |
6eb791fc | 6791 | break; |
f996902d | 6792 | case UNSPEC_GOTTPOFF: |
dea73790 | 6793 | /* FIXME: This might be @TPOFF in Sun ld too. */ |
f996902d RH |
6794 | fputs ("@GOTTPOFF", file); |
6795 | break; | |
6796 | case UNSPEC_TPOFF: | |
6797 | fputs ("@TPOFF", file); | |
6798 | break; | |
6799 | case UNSPEC_NTPOFF: | |
75d38379 JJ |
6800 | if (TARGET_64BIT) |
6801 | fputs ("@TPOFF", file); | |
6802 | else | |
6803 | fputs ("@NTPOFF", file); | |
f996902d RH |
6804 | break; |
6805 | case UNSPEC_DTPOFF: | |
6806 | fputs ("@DTPOFF", file); | |
6807 | break; | |
dea73790 | 6808 | case UNSPEC_GOTNTPOFF: |
75d38379 JJ |
6809 | if (TARGET_64BIT) |
6810 | fputs ("@GOTTPOFF(%rip)", file); | |
6811 | else | |
6812 | fputs ("@GOTNTPOFF", file); | |
dea73790 JJ |
6813 | break; |
6814 | case UNSPEC_INDNTPOFF: | |
6815 | fputs ("@INDNTPOFF", file); | |
6816 | break; | |
77ebd435 AJ |
6817 | default: |
6818 | output_operand_lossage ("invalid UNSPEC as operand"); | |
6819 | break; | |
6820 | } | |
91bb873f RH |
6821 | break; |
6822 | ||
2a2ab3f9 JVA |
6823 | default: |
6824 | output_operand_lossage ("invalid expression as operand"); | |
6825 | } | |
6826 | } | |
1865dbb5 | 6827 | |
0f290768 | 6828 | /* This is called from dwarfout.c via ASM_OUTPUT_DWARF_ADDR_CONST. |
1865dbb5 JM |
6829 | We need to handle our special PIC relocations. */ |
6830 | ||
0f290768 | 6831 | void |
b96a374d | 6832 | i386_dwarf_output_addr_const (FILE *file, rtx x) |
1865dbb5 | 6833 | { |
14f73b5a | 6834 | #ifdef ASM_QUAD |
18b5b8d6 | 6835 | fprintf (file, "%s", TARGET_64BIT ? ASM_QUAD : ASM_LONG); |
14f73b5a JH |
6836 | #else |
6837 | if (TARGET_64BIT) | |
6838 | abort (); | |
18b5b8d6 | 6839 | fprintf (file, "%s", ASM_LONG); |
14f73b5a | 6840 | #endif |
1865dbb5 JM |
6841 | if (flag_pic) |
6842 | output_pic_addr_const (file, x, '\0'); | |
6843 | else | |
6844 | output_addr_const (file, x); | |
6845 | fputc ('\n', file); | |
6846 | } | |
6847 | ||
b9203463 RH |
6848 | /* This is called from dwarf2out.c via ASM_OUTPUT_DWARF_DTPREL. |
6849 | We need to emit DTP-relative relocations. */ | |
6850 | ||
6851 | void | |
b96a374d | 6852 | i386_output_dwarf_dtprel (FILE *file, int size, rtx x) |
b9203463 | 6853 | { |
75d38379 JJ |
6854 | fputs (ASM_LONG, file); |
6855 | output_addr_const (file, x); | |
6856 | fputs ("@DTPOFF", file); | |
b9203463 RH |
6857 | switch (size) |
6858 | { | |
6859 | case 4: | |
b9203463 RH |
6860 | break; |
6861 | case 8: | |
75d38379 | 6862 | fputs (", 0", file); |
b9203463 | 6863 | break; |
b9203463 RH |
6864 | default: |
6865 | abort (); | |
6866 | } | |
b9203463 RH |
6867 | } |
6868 | ||
1865dbb5 JM |
6869 | /* In the name of slightly smaller debug output, and to cater to |
6870 | general assembler losage, recognize PIC+GOTOFF and turn it back | |
6871 | into a direct symbol reference. */ | |
6872 | ||
69bd9368 | 6873 | static rtx |
b96a374d | 6874 | ix86_delegitimize_address (rtx orig_x) |
1865dbb5 | 6875 | { |
ec65b2e3 | 6876 | rtx x = orig_x, y; |
1865dbb5 | 6877 | |
4c8c0dec JJ |
6878 | if (GET_CODE (x) == MEM) |
6879 | x = XEXP (x, 0); | |
6880 | ||
6eb791fc JH |
6881 | if (TARGET_64BIT) |
6882 | { | |
6883 | if (GET_CODE (x) != CONST | |
6884 | || GET_CODE (XEXP (x, 0)) != UNSPEC | |
8ee41eaf | 6885 | || XINT (XEXP (x, 0), 1) != UNSPEC_GOTPCREL |
4c8c0dec | 6886 | || GET_CODE (orig_x) != MEM) |
6eb791fc JH |
6887 | return orig_x; |
6888 | return XVECEXP (XEXP (x, 0), 0, 0); | |
6889 | } | |
6890 | ||
1865dbb5 | 6891 | if (GET_CODE (x) != PLUS |
1865dbb5 JM |
6892 | || GET_CODE (XEXP (x, 1)) != CONST) |
6893 | return orig_x; | |
6894 | ||
ec65b2e3 JJ |
6895 | if (GET_CODE (XEXP (x, 0)) == REG |
6896 | && REGNO (XEXP (x, 0)) == PIC_OFFSET_TABLE_REGNUM) | |
6897 | /* %ebx + GOT/GOTOFF */ | |
6898 | y = NULL; | |
6899 | else if (GET_CODE (XEXP (x, 0)) == PLUS) | |
6900 | { | |
6901 | /* %ebx + %reg * scale + GOT/GOTOFF */ | |
6902 | y = XEXP (x, 0); | |
6903 | if (GET_CODE (XEXP (y, 0)) == REG | |
6904 | && REGNO (XEXP (y, 0)) == PIC_OFFSET_TABLE_REGNUM) | |
6905 | y = XEXP (y, 1); | |
6906 | else if (GET_CODE (XEXP (y, 1)) == REG | |
6907 | && REGNO (XEXP (y, 1)) == PIC_OFFSET_TABLE_REGNUM) | |
6908 | y = XEXP (y, 0); | |
6909 | else | |
6910 | return orig_x; | |
6911 | if (GET_CODE (y) != REG | |
6912 | && GET_CODE (y) != MULT | |
6913 | && GET_CODE (y) != ASHIFT) | |
6914 | return orig_x; | |
6915 | } | |
6916 | else | |
6917 | return orig_x; | |
6918 | ||
1865dbb5 JM |
6919 | x = XEXP (XEXP (x, 1), 0); |
6920 | if (GET_CODE (x) == UNSPEC | |
8ee41eaf RH |
6921 | && ((XINT (x, 1) == UNSPEC_GOT && GET_CODE (orig_x) == MEM) |
6922 | || (XINT (x, 1) == UNSPEC_GOTOFF && GET_CODE (orig_x) != MEM))) | |
ec65b2e3 JJ |
6923 | { |
6924 | if (y) | |
6925 | return gen_rtx_PLUS (Pmode, y, XVECEXP (x, 0, 0)); | |
6926 | return XVECEXP (x, 0, 0); | |
6927 | } | |
1865dbb5 JM |
6928 | |
6929 | if (GET_CODE (x) == PLUS | |
6930 | && GET_CODE (XEXP (x, 0)) == UNSPEC | |
6931 | && GET_CODE (XEXP (x, 1)) == CONST_INT | |
8ee41eaf RH |
6932 | && ((XINT (XEXP (x, 0), 1) == UNSPEC_GOT && GET_CODE (orig_x) == MEM) |
6933 | || (XINT (XEXP (x, 0), 1) == UNSPEC_GOTOFF | |
6934 | && GET_CODE (orig_x) != MEM))) | |
ec65b2e3 JJ |
6935 | { |
6936 | x = gen_rtx_PLUS (VOIDmode, XVECEXP (XEXP (x, 0), 0, 0), XEXP (x, 1)); | |
6937 | if (y) | |
6938 | return gen_rtx_PLUS (Pmode, y, x); | |
6939 | return x; | |
6940 | } | |
1865dbb5 JM |
6941 | |
6942 | return orig_x; | |
6943 | } | |
2a2ab3f9 | 6944 | \f |
a269a03c | 6945 | static void |
b96a374d AJ |
6946 | put_condition_code (enum rtx_code code, enum machine_mode mode, int reverse, |
6947 | int fp, FILE *file) | |
a269a03c | 6948 | { |
a269a03c JC |
6949 | const char *suffix; |
6950 | ||
9a915772 JH |
6951 | if (mode == CCFPmode || mode == CCFPUmode) |
6952 | { | |
6953 | enum rtx_code second_code, bypass_code; | |
6954 | ix86_fp_comparison_codes (code, &bypass_code, &code, &second_code); | |
6955 | if (bypass_code != NIL || second_code != NIL) | |
b531087a | 6956 | abort (); |
9a915772 JH |
6957 | code = ix86_fp_compare_code_to_integer (code); |
6958 | mode = CCmode; | |
6959 | } | |
a269a03c JC |
6960 | if (reverse) |
6961 | code = reverse_condition (code); | |
e075ae69 | 6962 | |
a269a03c JC |
6963 | switch (code) |
6964 | { | |
6965 | case EQ: | |
6966 | suffix = "e"; | |
6967 | break; | |
a269a03c JC |
6968 | case NE: |
6969 | suffix = "ne"; | |
6970 | break; | |
a269a03c | 6971 | case GT: |
7e08e190 | 6972 | if (mode != CCmode && mode != CCNOmode && mode != CCGCmode) |
e075ae69 RH |
6973 | abort (); |
6974 | suffix = "g"; | |
a269a03c | 6975 | break; |
a269a03c | 6976 | case GTU: |
e075ae69 RH |
6977 | /* ??? Use "nbe" instead of "a" for fcmov losage on some assemblers. |
6978 | Those same assemblers have the same but opposite losage on cmov. */ | |
7e08e190 | 6979 | if (mode != CCmode) |
0f290768 | 6980 | abort (); |
e075ae69 | 6981 | suffix = fp ? "nbe" : "a"; |
a269a03c | 6982 | break; |
a269a03c | 6983 | case LT: |
9076b9c1 | 6984 | if (mode == CCNOmode || mode == CCGOCmode) |
a269a03c | 6985 | suffix = "s"; |
7e08e190 | 6986 | else if (mode == CCmode || mode == CCGCmode) |
e075ae69 | 6987 | suffix = "l"; |
9076b9c1 | 6988 | else |
0f290768 | 6989 | abort (); |
a269a03c | 6990 | break; |
a269a03c | 6991 | case LTU: |
9076b9c1 | 6992 | if (mode != CCmode) |
0f290768 | 6993 | abort (); |
a269a03c JC |
6994 | suffix = "b"; |
6995 | break; | |
a269a03c | 6996 | case GE: |
9076b9c1 | 6997 | if (mode == CCNOmode || mode == CCGOCmode) |
a269a03c | 6998 | suffix = "ns"; |
7e08e190 | 6999 | else if (mode == CCmode || mode == CCGCmode) |
e075ae69 | 7000 | suffix = "ge"; |
9076b9c1 | 7001 | else |
0f290768 | 7002 | abort (); |
a269a03c | 7003 | break; |
a269a03c | 7004 | case GEU: |
e075ae69 | 7005 | /* ??? As above. */ |
7e08e190 | 7006 | if (mode != CCmode) |
0f290768 | 7007 | abort (); |
7e08e190 | 7008 | suffix = fp ? "nb" : "ae"; |
a269a03c | 7009 | break; |
a269a03c | 7010 | case LE: |
7e08e190 | 7011 | if (mode != CCmode && mode != CCGCmode && mode != CCNOmode) |
e075ae69 RH |
7012 | abort (); |
7013 | suffix = "le"; | |
a269a03c | 7014 | break; |
a269a03c | 7015 | case LEU: |
9076b9c1 JH |
7016 | if (mode != CCmode) |
7017 | abort (); | |
7e08e190 | 7018 | suffix = "be"; |
a269a03c | 7019 | break; |
3a3677ff | 7020 | case UNORDERED: |
9e7adcb3 | 7021 | suffix = fp ? "u" : "p"; |
3a3677ff RH |
7022 | break; |
7023 | case ORDERED: | |
9e7adcb3 | 7024 | suffix = fp ? "nu" : "np"; |
3a3677ff | 7025 | break; |
a269a03c JC |
7026 | default: |
7027 | abort (); | |
7028 | } | |
7029 | fputs (suffix, file); | |
7030 | } | |
7031 | ||
a55f4481 RK |
7032 | /* Print the name of register X to FILE based on its machine mode and number. |
7033 | If CODE is 'w', pretend the mode is HImode. | |
7034 | If CODE is 'b', pretend the mode is QImode. | |
7035 | If CODE is 'k', pretend the mode is SImode. | |
7036 | If CODE is 'q', pretend the mode is DImode. | |
7037 | If CODE is 'h', pretend the reg is the `high' byte register. | |
7038 | If CODE is 'y', print "st(0)" instead of "st", if the reg is stack op. */ | |
7039 | ||
e075ae69 | 7040 | void |
b96a374d | 7041 | print_reg (rtx x, int code, FILE *file) |
e5cb57e8 | 7042 | { |
a55f4481 RK |
7043 | if (REGNO (x) == ARG_POINTER_REGNUM |
7044 | || REGNO (x) == FRAME_POINTER_REGNUM | |
7045 | || REGNO (x) == FLAGS_REG | |
7046 | || REGNO (x) == FPSR_REG) | |
480feac0 ZW |
7047 | abort (); |
7048 | ||
5bf0ebab | 7049 | if (ASSEMBLER_DIALECT == ASM_ATT || USER_LABEL_PREFIX[0] == 0) |
e075ae69 RH |
7050 | putc ('%', file); |
7051 | ||
ef6257cd | 7052 | if (code == 'w' || MMX_REG_P (x)) |
e075ae69 RH |
7053 | code = 2; |
7054 | else if (code == 'b') | |
7055 | code = 1; | |
7056 | else if (code == 'k') | |
7057 | code = 4; | |
3f3f2124 JH |
7058 | else if (code == 'q') |
7059 | code = 8; | |
e075ae69 RH |
7060 | else if (code == 'y') |
7061 | code = 3; | |
7062 | else if (code == 'h') | |
7063 | code = 0; | |
7064 | else | |
7065 | code = GET_MODE_SIZE (GET_MODE (x)); | |
e9a25f70 | 7066 | |
3f3f2124 JH |
7067 | /* Irritatingly, AMD extended registers use different naming convention |
7068 | from the normal registers. */ | |
7069 | if (REX_INT_REG_P (x)) | |
7070 | { | |
885a70fd JH |
7071 | if (!TARGET_64BIT) |
7072 | abort (); | |
3f3f2124 JH |
7073 | switch (code) |
7074 | { | |
ef6257cd | 7075 | case 0: |
c725bd79 | 7076 | error ("extended registers have no high halves"); |
3f3f2124 JH |
7077 | break; |
7078 | case 1: | |
7079 | fprintf (file, "r%ib", REGNO (x) - FIRST_REX_INT_REG + 8); | |
7080 | break; | |
7081 | case 2: | |
7082 | fprintf (file, "r%iw", REGNO (x) - FIRST_REX_INT_REG + 8); | |
7083 | break; | |
7084 | case 4: | |
7085 | fprintf (file, "r%id", REGNO (x) - FIRST_REX_INT_REG + 8); | |
7086 | break; | |
7087 | case 8: | |
7088 | fprintf (file, "r%i", REGNO (x) - FIRST_REX_INT_REG + 8); | |
7089 | break; | |
7090 | default: | |
c725bd79 | 7091 | error ("unsupported operand size for extended register"); |
3f3f2124 JH |
7092 | break; |
7093 | } | |
7094 | return; | |
7095 | } | |
e075ae69 RH |
7096 | switch (code) |
7097 | { | |
7098 | case 3: | |
7099 | if (STACK_TOP_P (x)) | |
7100 | { | |
7101 | fputs ("st(0)", file); | |
7102 | break; | |
7103 | } | |
5efb1046 | 7104 | /* FALLTHRU */ |
e075ae69 | 7105 | case 8: |
3f3f2124 | 7106 | case 4: |
e075ae69 | 7107 | case 12: |
446988df | 7108 | if (! ANY_FP_REG_P (x)) |
885a70fd | 7109 | putc (code == 8 && TARGET_64BIT ? 'r' : 'e', file); |
5efb1046 | 7110 | /* FALLTHRU */ |
a7180f70 | 7111 | case 16: |
e075ae69 | 7112 | case 2: |
d4c32b6f | 7113 | normal: |
e075ae69 RH |
7114 | fputs (hi_reg_name[REGNO (x)], file); |
7115 | break; | |
7116 | case 1: | |
d4c32b6f RH |
7117 | if (REGNO (x) >= ARRAY_SIZE (qi_reg_name)) |
7118 | goto normal; | |
e075ae69 RH |
7119 | fputs (qi_reg_name[REGNO (x)], file); |
7120 | break; | |
7121 | case 0: | |
d4c32b6f RH |
7122 | if (REGNO (x) >= ARRAY_SIZE (qi_high_reg_name)) |
7123 | goto normal; | |
e075ae69 RH |
7124 | fputs (qi_high_reg_name[REGNO (x)], file); |
7125 | break; | |
7126 | default: | |
7127 | abort (); | |
fe25fea3 | 7128 | } |
e5cb57e8 SC |
7129 | } |
7130 | ||
f996902d RH |
7131 | /* Locate some local-dynamic symbol still in use by this function |
7132 | so that we can print its name in some tls_local_dynamic_base | |
7133 | pattern. */ | |
7134 | ||
7135 | static const char * | |
b96a374d | 7136 | get_some_local_dynamic_name (void) |
f996902d RH |
7137 | { |
7138 | rtx insn; | |
7139 | ||
7140 | if (cfun->machine->some_ld_name) | |
7141 | return cfun->machine->some_ld_name; | |
7142 | ||
7143 | for (insn = get_insns (); insn ; insn = NEXT_INSN (insn)) | |
7144 | if (INSN_P (insn) | |
7145 | && for_each_rtx (&PATTERN (insn), get_some_local_dynamic_name_1, 0)) | |
7146 | return cfun->machine->some_ld_name; | |
7147 | ||
7148 | abort (); | |
7149 | } | |
7150 | ||
7151 | static int | |
b96a374d | 7152 | get_some_local_dynamic_name_1 (rtx *px, void *data ATTRIBUTE_UNUSED) |
f996902d RH |
7153 | { |
7154 | rtx x = *px; | |
7155 | ||
7156 | if (GET_CODE (x) == SYMBOL_REF | |
7157 | && local_dynamic_symbolic_operand (x, Pmode)) | |
7158 | { | |
7159 | cfun->machine->some_ld_name = XSTR (x, 0); | |
7160 | return 1; | |
7161 | } | |
7162 | ||
7163 | return 0; | |
7164 | } | |
7165 | ||
2a2ab3f9 | 7166 | /* Meaning of CODE: |
fe25fea3 | 7167 | L,W,B,Q,S,T -- print the opcode suffix for specified size of operand. |
e5cb57e8 | 7168 | C -- print opcode suffix for set/cmov insn. |
fe25fea3 | 7169 | c -- like C, but print reversed condition |
ef6257cd | 7170 | F,f -- likewise, but for floating-point. |
f6f5dff2 RO |
7171 | O -- if HAVE_AS_IX86_CMOV_SUN_SYNTAX, expand to "w.", "l." or "q.", |
7172 | otherwise nothing | |
2a2ab3f9 JVA |
7173 | R -- print the prefix for register names. |
7174 | z -- print the opcode suffix for the size of the current operand. | |
7175 | * -- print a star (in certain assembler syntax) | |
fb204271 | 7176 | A -- print an absolute memory reference. |
2a2ab3f9 | 7177 | w -- print the operand as if it's a "word" (HImode) even if it isn't. |
2d49677f SC |
7178 | s -- print a shift double count, followed by the assemblers argument |
7179 | delimiter. | |
fe25fea3 SC |
7180 | b -- print the QImode name of the register for the indicated operand. |
7181 | %b0 would print %al if operands[0] is reg 0. | |
7182 | w -- likewise, print the HImode name of the register. | |
7183 | k -- likewise, print the SImode name of the register. | |
3f3f2124 | 7184 | q -- likewise, print the DImode name of the register. |
ef6257cd JH |
7185 | h -- print the QImode name for a "high" register, either ah, bh, ch or dh. |
7186 | y -- print "st(0)" instead of "st" as a register. | |
a46d1d38 | 7187 | D -- print condition for SSE cmp instruction. |
ef6257cd JH |
7188 | P -- if PIC, print an @PLT suffix. |
7189 | X -- don't print any sort of PIC '@' suffix for a symbol. | |
f996902d | 7190 | & -- print some in-use local-dynamic symbol name. |
a46d1d38 | 7191 | */ |
2a2ab3f9 JVA |
7192 | |
7193 | void | |
b96a374d | 7194 | print_operand (FILE *file, rtx x, int code) |
2a2ab3f9 JVA |
7195 | { |
7196 | if (code) | |
7197 | { | |
7198 | switch (code) | |
7199 | { | |
7200 | case '*': | |
80f33d06 | 7201 | if (ASSEMBLER_DIALECT == ASM_ATT) |
2a2ab3f9 JVA |
7202 | putc ('*', file); |
7203 | return; | |
7204 | ||
f996902d RH |
7205 | case '&': |
7206 | assemble_name (file, get_some_local_dynamic_name ()); | |
7207 | return; | |
7208 | ||
fb204271 | 7209 | case 'A': |
80f33d06 | 7210 | if (ASSEMBLER_DIALECT == ASM_ATT) |
fb204271 | 7211 | putc ('*', file); |
80f33d06 | 7212 | else if (ASSEMBLER_DIALECT == ASM_INTEL) |
fb204271 DN |
7213 | { |
7214 | /* Intel syntax. For absolute addresses, registers should not | |
7215 | be surrounded by braces. */ | |
7216 | if (GET_CODE (x) != REG) | |
7217 | { | |
7218 | putc ('[', file); | |
7219 | PRINT_OPERAND (file, x, 0); | |
7220 | putc (']', file); | |
7221 | return; | |
7222 | } | |
7223 | } | |
80f33d06 GS |
7224 | else |
7225 | abort (); | |
fb204271 DN |
7226 | |
7227 | PRINT_OPERAND (file, x, 0); | |
7228 | return; | |
7229 | ||
7230 | ||
2a2ab3f9 | 7231 | case 'L': |
80f33d06 | 7232 | if (ASSEMBLER_DIALECT == ASM_ATT) |
e075ae69 | 7233 | putc ('l', file); |
2a2ab3f9 JVA |
7234 | return; |
7235 | ||
7236 | case 'W': | |
80f33d06 | 7237 | if (ASSEMBLER_DIALECT == ASM_ATT) |
e075ae69 | 7238 | putc ('w', file); |
2a2ab3f9 JVA |
7239 | return; |
7240 | ||
7241 | case 'B': | |
80f33d06 | 7242 | if (ASSEMBLER_DIALECT == ASM_ATT) |
e075ae69 | 7243 | putc ('b', file); |
2a2ab3f9 JVA |
7244 | return; |
7245 | ||
7246 | case 'Q': | |
80f33d06 | 7247 | if (ASSEMBLER_DIALECT == ASM_ATT) |
e075ae69 | 7248 | putc ('l', file); |
2a2ab3f9 JVA |
7249 | return; |
7250 | ||
7251 | case 'S': | |
80f33d06 | 7252 | if (ASSEMBLER_DIALECT == ASM_ATT) |
e075ae69 | 7253 | putc ('s', file); |
2a2ab3f9 JVA |
7254 | return; |
7255 | ||
5f1ec3e6 | 7256 | case 'T': |
80f33d06 | 7257 | if (ASSEMBLER_DIALECT == ASM_ATT) |
e075ae69 | 7258 | putc ('t', file); |
5f1ec3e6 JVA |
7259 | return; |
7260 | ||
2a2ab3f9 JVA |
7261 | case 'z': |
7262 | /* 387 opcodes don't get size suffixes if the operands are | |
0f290768 | 7263 | registers. */ |
2a2ab3f9 JVA |
7264 | if (STACK_REG_P (x)) |
7265 | return; | |
7266 | ||
831c4e87 KC |
7267 | /* Likewise if using Intel opcodes. */ |
7268 | if (ASSEMBLER_DIALECT == ASM_INTEL) | |
7269 | return; | |
7270 | ||
7271 | /* This is the size of op from size of operand. */ | |
2a2ab3f9 JVA |
7272 | switch (GET_MODE_SIZE (GET_MODE (x))) |
7273 | { | |
2a2ab3f9 | 7274 | case 2: |
155d8a47 JW |
7275 | #ifdef HAVE_GAS_FILDS_FISTS |
7276 | putc ('s', file); | |
7277 | #endif | |
2a2ab3f9 JVA |
7278 | return; |
7279 | ||
7280 | case 4: | |
7281 | if (GET_MODE (x) == SFmode) | |
7282 | { | |
e075ae69 | 7283 | putc ('s', file); |
2a2ab3f9 JVA |
7284 | return; |
7285 | } | |
7286 | else | |
e075ae69 | 7287 | putc ('l', file); |
2a2ab3f9 JVA |
7288 | return; |
7289 | ||
5f1ec3e6 | 7290 | case 12: |
2b589241 | 7291 | case 16: |
e075ae69 RH |
7292 | putc ('t', file); |
7293 | return; | |
5f1ec3e6 | 7294 | |
2a2ab3f9 JVA |
7295 | case 8: |
7296 | if (GET_MODE_CLASS (GET_MODE (x)) == MODE_INT) | |
56c0e8fa JVA |
7297 | { |
7298 | #ifdef GAS_MNEMONICS | |
e075ae69 | 7299 | putc ('q', file); |
56c0e8fa | 7300 | #else |
e075ae69 RH |
7301 | putc ('l', file); |
7302 | putc ('l', file); | |
56c0e8fa JVA |
7303 | #endif |
7304 | } | |
e075ae69 RH |
7305 | else |
7306 | putc ('l', file); | |
2a2ab3f9 | 7307 | return; |
155d8a47 JW |
7308 | |
7309 | default: | |
7310 | abort (); | |
2a2ab3f9 | 7311 | } |
4af3895e JVA |
7312 | |
7313 | case 'b': | |
7314 | case 'w': | |
7315 | case 'k': | |
3f3f2124 | 7316 | case 'q': |
4af3895e JVA |
7317 | case 'h': |
7318 | case 'y': | |
5cb6195d | 7319 | case 'X': |
e075ae69 | 7320 | case 'P': |
4af3895e JVA |
7321 | break; |
7322 | ||
2d49677f SC |
7323 | case 's': |
7324 | if (GET_CODE (x) == CONST_INT || ! SHIFT_DOUBLE_OMITS_COUNT) | |
7325 | { | |
7326 | PRINT_OPERAND (file, x, 0); | |
e075ae69 | 7327 | putc (',', file); |
2d49677f | 7328 | } |
a269a03c JC |
7329 | return; |
7330 | ||
a46d1d38 JH |
7331 | case 'D': |
7332 | /* Little bit of braindamage here. The SSE compare instructions | |
7333 | does use completely different names for the comparisons that the | |
7334 | fp conditional moves. */ | |
7335 | switch (GET_CODE (x)) | |
7336 | { | |
7337 | case EQ: | |
7338 | case UNEQ: | |
7339 | fputs ("eq", file); | |
7340 | break; | |
7341 | case LT: | |
7342 | case UNLT: | |
7343 | fputs ("lt", file); | |
7344 | break; | |
7345 | case LE: | |
7346 | case UNLE: | |
7347 | fputs ("le", file); | |
7348 | break; | |
7349 | case UNORDERED: | |
7350 | fputs ("unord", file); | |
7351 | break; | |
7352 | case NE: | |
7353 | case LTGT: | |
7354 | fputs ("neq", file); | |
7355 | break; | |
7356 | case UNGE: | |
7357 | case GE: | |
7358 | fputs ("nlt", file); | |
7359 | break; | |
7360 | case UNGT: | |
7361 | case GT: | |
7362 | fputs ("nle", file); | |
7363 | break; | |
7364 | case ORDERED: | |
7365 | fputs ("ord", file); | |
7366 | break; | |
7367 | default: | |
7368 | abort (); | |
7369 | break; | |
7370 | } | |
7371 | return; | |
048b1c95 | 7372 | case 'O': |
f6f5dff2 | 7373 | #ifdef HAVE_AS_IX86_CMOV_SUN_SYNTAX |
048b1c95 JJ |
7374 | if (ASSEMBLER_DIALECT == ASM_ATT) |
7375 | { | |
7376 | switch (GET_MODE (x)) | |
7377 | { | |
7378 | case HImode: putc ('w', file); break; | |
7379 | case SImode: | |
7380 | case SFmode: putc ('l', file); break; | |
7381 | case DImode: | |
7382 | case DFmode: putc ('q', file); break; | |
7383 | default: abort (); | |
7384 | } | |
7385 | putc ('.', file); | |
7386 | } | |
7387 | #endif | |
7388 | return; | |
1853aadd | 7389 | case 'C': |
e075ae69 | 7390 | put_condition_code (GET_CODE (x), GET_MODE (XEXP (x, 0)), 0, 0, file); |
1853aadd | 7391 | return; |
fe25fea3 | 7392 | case 'F': |
f6f5dff2 | 7393 | #ifdef HAVE_AS_IX86_CMOV_SUN_SYNTAX |
048b1c95 JJ |
7394 | if (ASSEMBLER_DIALECT == ASM_ATT) |
7395 | putc ('.', file); | |
7396 | #endif | |
e075ae69 | 7397 | put_condition_code (GET_CODE (x), GET_MODE (XEXP (x, 0)), 0, 1, file); |
fe25fea3 SC |
7398 | return; |
7399 | ||
e9a25f70 | 7400 | /* Like above, but reverse condition */ |
e075ae69 | 7401 | case 'c': |
fce5a9f2 | 7402 | /* Check to see if argument to %c is really a constant |
c1d5afc4 CR |
7403 | and not a condition code which needs to be reversed. */ |
7404 | if (GET_RTX_CLASS (GET_CODE (x)) != '<') | |
7405 | { | |
7406 | output_operand_lossage ("operand is neither a constant nor a condition code, invalid operand code 'c'"); | |
7407 | return; | |
7408 | } | |
e075ae69 RH |
7409 | put_condition_code (GET_CODE (x), GET_MODE (XEXP (x, 0)), 1, 0, file); |
7410 | return; | |
fe25fea3 | 7411 | case 'f': |
f6f5dff2 | 7412 | #ifdef HAVE_AS_IX86_CMOV_SUN_SYNTAX |
048b1c95 JJ |
7413 | if (ASSEMBLER_DIALECT == ASM_ATT) |
7414 | putc ('.', file); | |
7415 | #endif | |
e075ae69 | 7416 | put_condition_code (GET_CODE (x), GET_MODE (XEXP (x, 0)), 1, 1, file); |
1853aadd | 7417 | return; |
ef6257cd JH |
7418 | case '+': |
7419 | { | |
7420 | rtx x; | |
e5cb57e8 | 7421 | |
ef6257cd JH |
7422 | if (!optimize || optimize_size || !TARGET_BRANCH_PREDICTION_HINTS) |
7423 | return; | |
a4f31c00 | 7424 | |
ef6257cd JH |
7425 | x = find_reg_note (current_output_insn, REG_BR_PROB, 0); |
7426 | if (x) | |
7427 | { | |
7428 | int pred_val = INTVAL (XEXP (x, 0)); | |
7429 | ||
7430 | if (pred_val < REG_BR_PROB_BASE * 45 / 100 | |
7431 | || pred_val > REG_BR_PROB_BASE * 55 / 100) | |
7432 | { | |
7433 | int taken = pred_val > REG_BR_PROB_BASE / 2; | |
7434 | int cputaken = final_forward_branch_p (current_output_insn) == 0; | |
7435 | ||
7436 | /* Emit hints only in the case default branch prediction | |
d1f87653 | 7437 | heuristics would fail. */ |
ef6257cd JH |
7438 | if (taken != cputaken) |
7439 | { | |
7440 | /* We use 3e (DS) prefix for taken branches and | |
7441 | 2e (CS) prefix for not taken branches. */ | |
7442 | if (taken) | |
7443 | fputs ("ds ; ", file); | |
7444 | else | |
7445 | fputs ("cs ; ", file); | |
7446 | } | |
7447 | } | |
7448 | } | |
7449 | return; | |
7450 | } | |
4af3895e | 7451 | default: |
a52453cc | 7452 | output_operand_lossage ("invalid operand code `%c'", code); |
2a2ab3f9 JVA |
7453 | } |
7454 | } | |
e9a25f70 | 7455 | |
2a2ab3f9 | 7456 | if (GET_CODE (x) == REG) |
a55f4481 | 7457 | print_reg (x, code, file); |
e9a25f70 | 7458 | |
2a2ab3f9 JVA |
7459 | else if (GET_CODE (x) == MEM) |
7460 | { | |
e075ae69 | 7461 | /* No `byte ptr' prefix for call instructions. */ |
80f33d06 | 7462 | if (ASSEMBLER_DIALECT == ASM_INTEL && code != 'X' && code != 'P') |
2a2ab3f9 | 7463 | { |
69ddee61 | 7464 | const char * size; |
e075ae69 RH |
7465 | switch (GET_MODE_SIZE (GET_MODE (x))) |
7466 | { | |
7467 | case 1: size = "BYTE"; break; | |
7468 | case 2: size = "WORD"; break; | |
7469 | case 4: size = "DWORD"; break; | |
7470 | case 8: size = "QWORD"; break; | |
7471 | case 12: size = "XWORD"; break; | |
a7180f70 | 7472 | case 16: size = "XMMWORD"; break; |
e075ae69 | 7473 | default: |
564d80f4 | 7474 | abort (); |
e075ae69 | 7475 | } |
fb204271 DN |
7476 | |
7477 | /* Check for explicit size override (codes 'b', 'w' and 'k') */ | |
7478 | if (code == 'b') | |
7479 | size = "BYTE"; | |
7480 | else if (code == 'w') | |
7481 | size = "WORD"; | |
7482 | else if (code == 'k') | |
7483 | size = "DWORD"; | |
7484 | ||
e075ae69 RH |
7485 | fputs (size, file); |
7486 | fputs (" PTR ", file); | |
2a2ab3f9 | 7487 | } |
e075ae69 RH |
7488 | |
7489 | x = XEXP (x, 0); | |
0d7d98ee | 7490 | /* Avoid (%rip) for call operands. */ |
d10f5ecf | 7491 | if (CONSTANT_ADDRESS_P (x) && code == 'P' |
0d7d98ee JH |
7492 | && GET_CODE (x) != CONST_INT) |
7493 | output_addr_const (file, x); | |
c8b94768 RH |
7494 | else if (this_is_asm_operands && ! address_operand (x, VOIDmode)) |
7495 | output_operand_lossage ("invalid constraints for operand"); | |
2a2ab3f9 | 7496 | else |
e075ae69 | 7497 | output_address (x); |
2a2ab3f9 | 7498 | } |
e9a25f70 | 7499 | |
2a2ab3f9 JVA |
7500 | else if (GET_CODE (x) == CONST_DOUBLE && GET_MODE (x) == SFmode) |
7501 | { | |
e9a25f70 JL |
7502 | REAL_VALUE_TYPE r; |
7503 | long l; | |
7504 | ||
5f1ec3e6 JVA |
7505 | REAL_VALUE_FROM_CONST_DOUBLE (r, x); |
7506 | REAL_VALUE_TO_TARGET_SINGLE (r, l); | |
e075ae69 | 7507 | |
80f33d06 | 7508 | if (ASSEMBLER_DIALECT == ASM_ATT) |
e075ae69 | 7509 | putc ('$', file); |
781f4ec1 | 7510 | fprintf (file, "0x%08lx", l); |
5f1ec3e6 | 7511 | } |
e9a25f70 | 7512 | |
74dc3e94 RH |
7513 | /* These float cases don't actually occur as immediate operands. */ |
7514 | else if (GET_CODE (x) == CONST_DOUBLE && GET_MODE (x) == DFmode) | |
5f1ec3e6 | 7515 | { |
e9a25f70 JL |
7516 | char dstr[30]; |
7517 | ||
da6eec72 | 7518 | real_to_decimal (dstr, CONST_DOUBLE_REAL_VALUE (x), sizeof (dstr), 0, 1); |
5f1ec3e6 | 7519 | fprintf (file, "%s", dstr); |
2a2ab3f9 | 7520 | } |
e9a25f70 | 7521 | |
2b589241 | 7522 | else if (GET_CODE (x) == CONST_DOUBLE |
f8a1ebc6 | 7523 | && GET_MODE (x) == XFmode) |
2a2ab3f9 | 7524 | { |
e9a25f70 JL |
7525 | char dstr[30]; |
7526 | ||
da6eec72 | 7527 | real_to_decimal (dstr, CONST_DOUBLE_REAL_VALUE (x), sizeof (dstr), 0, 1); |
5f1ec3e6 | 7528 | fprintf (file, "%s", dstr); |
2a2ab3f9 | 7529 | } |
f996902d | 7530 | |
79325812 | 7531 | else |
2a2ab3f9 | 7532 | { |
4af3895e | 7533 | if (code != 'P') |
2a2ab3f9 | 7534 | { |
695dac07 | 7535 | if (GET_CODE (x) == CONST_INT || GET_CODE (x) == CONST_DOUBLE) |
e075ae69 | 7536 | { |
80f33d06 | 7537 | if (ASSEMBLER_DIALECT == ASM_ATT) |
e075ae69 RH |
7538 | putc ('$', file); |
7539 | } | |
2a2ab3f9 JVA |
7540 | else if (GET_CODE (x) == CONST || GET_CODE (x) == SYMBOL_REF |
7541 | || GET_CODE (x) == LABEL_REF) | |
e075ae69 | 7542 | { |
80f33d06 | 7543 | if (ASSEMBLER_DIALECT == ASM_ATT) |
e075ae69 RH |
7544 | putc ('$', file); |
7545 | else | |
7546 | fputs ("OFFSET FLAT:", file); | |
7547 | } | |
2a2ab3f9 | 7548 | } |
e075ae69 RH |
7549 | if (GET_CODE (x) == CONST_INT) |
7550 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, INTVAL (x)); | |
7551 | else if (flag_pic) | |
2a2ab3f9 JVA |
7552 | output_pic_addr_const (file, x, code); |
7553 | else | |
7554 | output_addr_const (file, x); | |
7555 | } | |
7556 | } | |
7557 | \f | |
7558 | /* Print a memory operand whose address is ADDR. */ | |
7559 | ||
7560 | void | |
8d531ab9 | 7561 | print_operand_address (FILE *file, rtx addr) |
2a2ab3f9 | 7562 | { |
e075ae69 RH |
7563 | struct ix86_address parts; |
7564 | rtx base, index, disp; | |
7565 | int scale; | |
e9a25f70 | 7566 | |
e075ae69 RH |
7567 | if (! ix86_decompose_address (addr, &parts)) |
7568 | abort (); | |
e9a25f70 | 7569 | |
e075ae69 RH |
7570 | base = parts.base; |
7571 | index = parts.index; | |
7572 | disp = parts.disp; | |
7573 | scale = parts.scale; | |
e9a25f70 | 7574 | |
74dc3e94 RH |
7575 | switch (parts.seg) |
7576 | { | |
7577 | case SEG_DEFAULT: | |
7578 | break; | |
7579 | case SEG_FS: | |
7580 | case SEG_GS: | |
7581 | if (USER_LABEL_PREFIX[0] == 0) | |
7582 | putc ('%', file); | |
7583 | fputs ((parts.seg == SEG_FS ? "fs:" : "gs:"), file); | |
7584 | break; | |
7585 | default: | |
7586 | abort (); | |
7587 | } | |
7588 | ||
e075ae69 RH |
7589 | if (!base && !index) |
7590 | { | |
7591 | /* Displacement only requires special attention. */ | |
e9a25f70 | 7592 | |
e075ae69 | 7593 | if (GET_CODE (disp) == CONST_INT) |
2a2ab3f9 | 7594 | { |
74dc3e94 | 7595 | if (ASSEMBLER_DIALECT == ASM_INTEL && parts.seg == SEG_DEFAULT) |
fb204271 DN |
7596 | { |
7597 | if (USER_LABEL_PREFIX[0] == 0) | |
7598 | putc ('%', file); | |
7599 | fputs ("ds:", file); | |
7600 | } | |
74dc3e94 | 7601 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, INTVAL (disp)); |
2a2ab3f9 | 7602 | } |
e075ae69 | 7603 | else if (flag_pic) |
74dc3e94 | 7604 | output_pic_addr_const (file, disp, 0); |
e075ae69 | 7605 | else |
74dc3e94 | 7606 | output_addr_const (file, disp); |
0d7d98ee JH |
7607 | |
7608 | /* Use one byte shorter RIP relative addressing for 64bit mode. */ | |
edfe8595 | 7609 | if (TARGET_64BIT |
74dc3e94 RH |
7610 | && ((GET_CODE (disp) == SYMBOL_REF |
7611 | && ! tls_symbolic_operand (disp, GET_MODE (disp))) | |
7612 | || GET_CODE (disp) == LABEL_REF | |
7613 | || (GET_CODE (disp) == CONST | |
7614 | && GET_CODE (XEXP (disp, 0)) == PLUS | |
7615 | && (GET_CODE (XEXP (XEXP (disp, 0), 0)) == SYMBOL_REF | |
7616 | || GET_CODE (XEXP (XEXP (disp, 0), 0)) == LABEL_REF) | |
7617 | && GET_CODE (XEXP (XEXP (disp, 0), 1)) == CONST_INT))) | |
0d7d98ee | 7618 | fputs ("(%rip)", file); |
e075ae69 RH |
7619 | } |
7620 | else | |
7621 | { | |
80f33d06 | 7622 | if (ASSEMBLER_DIALECT == ASM_ATT) |
2a2ab3f9 | 7623 | { |
e075ae69 | 7624 | if (disp) |
2a2ab3f9 | 7625 | { |
c399861d | 7626 | if (flag_pic) |
e075ae69 RH |
7627 | output_pic_addr_const (file, disp, 0); |
7628 | else if (GET_CODE (disp) == LABEL_REF) | |
7629 | output_asm_label (disp); | |
2a2ab3f9 | 7630 | else |
e075ae69 | 7631 | output_addr_const (file, disp); |
2a2ab3f9 JVA |
7632 | } |
7633 | ||
e075ae69 RH |
7634 | putc ('(', file); |
7635 | if (base) | |
a55f4481 | 7636 | print_reg (base, 0, file); |
e075ae69 | 7637 | if (index) |
2a2ab3f9 | 7638 | { |
e075ae69 | 7639 | putc (',', file); |
a55f4481 | 7640 | print_reg (index, 0, file); |
e075ae69 RH |
7641 | if (scale != 1) |
7642 | fprintf (file, ",%d", scale); | |
2a2ab3f9 | 7643 | } |
e075ae69 | 7644 | putc (')', file); |
2a2ab3f9 | 7645 | } |
2a2ab3f9 JVA |
7646 | else |
7647 | { | |
e075ae69 | 7648 | rtx offset = NULL_RTX; |
e9a25f70 | 7649 | |
e075ae69 RH |
7650 | if (disp) |
7651 | { | |
7652 | /* Pull out the offset of a symbol; print any symbol itself. */ | |
7653 | if (GET_CODE (disp) == CONST | |
7654 | && GET_CODE (XEXP (disp, 0)) == PLUS | |
7655 | && GET_CODE (XEXP (XEXP (disp, 0), 1)) == CONST_INT) | |
7656 | { | |
7657 | offset = XEXP (XEXP (disp, 0), 1); | |
7658 | disp = gen_rtx_CONST (VOIDmode, | |
7659 | XEXP (XEXP (disp, 0), 0)); | |
7660 | } | |
ce193852 | 7661 | |
e075ae69 RH |
7662 | if (flag_pic) |
7663 | output_pic_addr_const (file, disp, 0); | |
7664 | else if (GET_CODE (disp) == LABEL_REF) | |
7665 | output_asm_label (disp); | |
7666 | else if (GET_CODE (disp) == CONST_INT) | |
7667 | offset = disp; | |
7668 | else | |
7669 | output_addr_const (file, disp); | |
7670 | } | |
e9a25f70 | 7671 | |
e075ae69 RH |
7672 | putc ('[', file); |
7673 | if (base) | |
a8620236 | 7674 | { |
a55f4481 | 7675 | print_reg (base, 0, file); |
e075ae69 RH |
7676 | if (offset) |
7677 | { | |
7678 | if (INTVAL (offset) >= 0) | |
7679 | putc ('+', file); | |
7680 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, INTVAL (offset)); | |
7681 | } | |
a8620236 | 7682 | } |
e075ae69 RH |
7683 | else if (offset) |
7684 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, INTVAL (offset)); | |
2247a58c | 7685 | else |
e075ae69 | 7686 | putc ('0', file); |
e9a25f70 | 7687 | |
e075ae69 RH |
7688 | if (index) |
7689 | { | |
7690 | putc ('+', file); | |
a55f4481 | 7691 | print_reg (index, 0, file); |
e075ae69 RH |
7692 | if (scale != 1) |
7693 | fprintf (file, "*%d", scale); | |
7694 | } | |
7695 | putc (']', file); | |
7696 | } | |
2a2ab3f9 JVA |
7697 | } |
7698 | } | |
f996902d RH |
7699 | |
7700 | bool | |
b96a374d | 7701 | output_addr_const_extra (FILE *file, rtx x) |
f996902d RH |
7702 | { |
7703 | rtx op; | |
7704 | ||
7705 | if (GET_CODE (x) != UNSPEC) | |
7706 | return false; | |
7707 | ||
7708 | op = XVECEXP (x, 0, 0); | |
7709 | switch (XINT (x, 1)) | |
7710 | { | |
7711 | case UNSPEC_GOTTPOFF: | |
7712 | output_addr_const (file, op); | |
dea73790 | 7713 | /* FIXME: This might be @TPOFF in Sun ld. */ |
f996902d RH |
7714 | fputs ("@GOTTPOFF", file); |
7715 | break; | |
7716 | case UNSPEC_TPOFF: | |
7717 | output_addr_const (file, op); | |
7718 | fputs ("@TPOFF", file); | |
7719 | break; | |
7720 | case UNSPEC_NTPOFF: | |
7721 | output_addr_const (file, op); | |
75d38379 JJ |
7722 | if (TARGET_64BIT) |
7723 | fputs ("@TPOFF", file); | |
7724 | else | |
7725 | fputs ("@NTPOFF", file); | |
f996902d RH |
7726 | break; |
7727 | case UNSPEC_DTPOFF: | |
7728 | output_addr_const (file, op); | |
7729 | fputs ("@DTPOFF", file); | |
7730 | break; | |
dea73790 JJ |
7731 | case UNSPEC_GOTNTPOFF: |
7732 | output_addr_const (file, op); | |
75d38379 JJ |
7733 | if (TARGET_64BIT) |
7734 | fputs ("@GOTTPOFF(%rip)", file); | |
7735 | else | |
7736 | fputs ("@GOTNTPOFF", file); | |
dea73790 JJ |
7737 | break; |
7738 | case UNSPEC_INDNTPOFF: | |
7739 | output_addr_const (file, op); | |
7740 | fputs ("@INDNTPOFF", file); | |
7741 | break; | |
f996902d RH |
7742 | |
7743 | default: | |
7744 | return false; | |
7745 | } | |
7746 | ||
7747 | return true; | |
7748 | } | |
2a2ab3f9 JVA |
7749 | \f |
7750 | /* Split one or more DImode RTL references into pairs of SImode | |
7751 | references. The RTL can be REG, offsettable MEM, integer constant, or | |
7752 | CONST_DOUBLE. "operands" is a pointer to an array of DImode RTL to | |
7753 | split and "num" is its length. lo_half and hi_half are output arrays | |
0f290768 | 7754 | that parallel "operands". */ |
2a2ab3f9 JVA |
7755 | |
7756 | void | |
b96a374d | 7757 | split_di (rtx operands[], int num, rtx lo_half[], rtx hi_half[]) |
2a2ab3f9 JVA |
7758 | { |
7759 | while (num--) | |
7760 | { | |
57dbca5e | 7761 | rtx op = operands[num]; |
b932f770 JH |
7762 | |
7763 | /* simplify_subreg refuse to split volatile memory addresses, | |
7764 | but we still have to handle it. */ | |
7765 | if (GET_CODE (op) == MEM) | |
2a2ab3f9 | 7766 | { |
f4ef873c | 7767 | lo_half[num] = adjust_address (op, SImode, 0); |
b72f00af | 7768 | hi_half[num] = adjust_address (op, SImode, 4); |
2a2ab3f9 JVA |
7769 | } |
7770 | else | |
b932f770 | 7771 | { |
38ca929b JH |
7772 | lo_half[num] = simplify_gen_subreg (SImode, op, |
7773 | GET_MODE (op) == VOIDmode | |
7774 | ? DImode : GET_MODE (op), 0); | |
7775 | hi_half[num] = simplify_gen_subreg (SImode, op, | |
7776 | GET_MODE (op) == VOIDmode | |
7777 | ? DImode : GET_MODE (op), 4); | |
b932f770 | 7778 | } |
2a2ab3f9 JVA |
7779 | } |
7780 | } | |
44cf5b6a JH |
7781 | /* Split one or more TImode RTL references into pairs of SImode |
7782 | references. The RTL can be REG, offsettable MEM, integer constant, or | |
7783 | CONST_DOUBLE. "operands" is a pointer to an array of DImode RTL to | |
7784 | split and "num" is its length. lo_half and hi_half are output arrays | |
7785 | that parallel "operands". */ | |
7786 | ||
7787 | void | |
b96a374d | 7788 | split_ti (rtx operands[], int num, rtx lo_half[], rtx hi_half[]) |
44cf5b6a JH |
7789 | { |
7790 | while (num--) | |
7791 | { | |
7792 | rtx op = operands[num]; | |
b932f770 JH |
7793 | |
7794 | /* simplify_subreg refuse to split volatile memory addresses, but we | |
7795 | still have to handle it. */ | |
7796 | if (GET_CODE (op) == MEM) | |
44cf5b6a JH |
7797 | { |
7798 | lo_half[num] = adjust_address (op, DImode, 0); | |
7799 | hi_half[num] = adjust_address (op, DImode, 8); | |
7800 | } | |
7801 | else | |
b932f770 JH |
7802 | { |
7803 | lo_half[num] = simplify_gen_subreg (DImode, op, TImode, 0); | |
7804 | hi_half[num] = simplify_gen_subreg (DImode, op, TImode, 8); | |
7805 | } | |
44cf5b6a JH |
7806 | } |
7807 | } | |
2a2ab3f9 | 7808 | \f |
2a2ab3f9 JVA |
7809 | /* Output code to perform a 387 binary operation in INSN, one of PLUS, |
7810 | MINUS, MULT or DIV. OPERANDS are the insn operands, where operands[3] | |
7811 | is the expression of the binary operation. The output may either be | |
7812 | emitted here, or returned to the caller, like all output_* functions. | |
7813 | ||
7814 | There is no guarantee that the operands are the same mode, as they | |
0f290768 | 7815 | might be within FLOAT or FLOAT_EXTEND expressions. */ |
2a2ab3f9 | 7816 | |
e3c2afab AM |
7817 | #ifndef SYSV386_COMPAT |
7818 | /* Set to 1 for compatibility with brain-damaged assemblers. No-one | |
7819 | wants to fix the assemblers because that causes incompatibility | |
7820 | with gcc. No-one wants to fix gcc because that causes | |
7821 | incompatibility with assemblers... You can use the option of | |
7822 | -DSYSV386_COMPAT=0 if you recompile both gcc and gas this way. */ | |
7823 | #define SYSV386_COMPAT 1 | |
7824 | #endif | |
7825 | ||
69ddee61 | 7826 | const char * |
b96a374d | 7827 | output_387_binary_op (rtx insn, rtx *operands) |
2a2ab3f9 | 7828 | { |
e3c2afab | 7829 | static char buf[30]; |
69ddee61 | 7830 | const char *p; |
1deaa899 JH |
7831 | const char *ssep; |
7832 | int is_sse = SSE_REG_P (operands[0]) | SSE_REG_P (operands[1]) | SSE_REG_P (operands[2]); | |
2a2ab3f9 | 7833 | |
e3c2afab AM |
7834 | #ifdef ENABLE_CHECKING |
7835 | /* Even if we do not want to check the inputs, this documents input | |
7836 | constraints. Which helps in understanding the following code. */ | |
7837 | if (STACK_REG_P (operands[0]) | |
7838 | && ((REG_P (operands[1]) | |
7839 | && REGNO (operands[0]) == REGNO (operands[1]) | |
7840 | && (STACK_REG_P (operands[2]) || GET_CODE (operands[2]) == MEM)) | |
7841 | || (REG_P (operands[2]) | |
7842 | && REGNO (operands[0]) == REGNO (operands[2]) | |
7843 | && (STACK_REG_P (operands[1]) || GET_CODE (operands[1]) == MEM))) | |
7844 | && (STACK_TOP_P (operands[1]) || STACK_TOP_P (operands[2]))) | |
7845 | ; /* ok */ | |
1deaa899 | 7846 | else if (!is_sse) |
e3c2afab AM |
7847 | abort (); |
7848 | #endif | |
7849 | ||
2a2ab3f9 JVA |
7850 | switch (GET_CODE (operands[3])) |
7851 | { | |
7852 | case PLUS: | |
e075ae69 RH |
7853 | if (GET_MODE_CLASS (GET_MODE (operands[1])) == MODE_INT |
7854 | || GET_MODE_CLASS (GET_MODE (operands[2])) == MODE_INT) | |
7855 | p = "fiadd"; | |
7856 | else | |
7857 | p = "fadd"; | |
1deaa899 | 7858 | ssep = "add"; |
2a2ab3f9 JVA |
7859 | break; |
7860 | ||
7861 | case MINUS: | |
e075ae69 RH |
7862 | if (GET_MODE_CLASS (GET_MODE (operands[1])) == MODE_INT |
7863 | || GET_MODE_CLASS (GET_MODE (operands[2])) == MODE_INT) | |
7864 | p = "fisub"; | |
7865 | else | |
7866 | p = "fsub"; | |
1deaa899 | 7867 | ssep = "sub"; |
2a2ab3f9 JVA |
7868 | break; |
7869 | ||
7870 | case MULT: | |
e075ae69 RH |
7871 | if (GET_MODE_CLASS (GET_MODE (operands[1])) == MODE_INT |
7872 | || GET_MODE_CLASS (GET_MODE (operands[2])) == MODE_INT) | |
7873 | p = "fimul"; | |
7874 | else | |
7875 | p = "fmul"; | |
1deaa899 | 7876 | ssep = "mul"; |
2a2ab3f9 JVA |
7877 | break; |
7878 | ||
7879 | case DIV: | |
e075ae69 RH |
7880 | if (GET_MODE_CLASS (GET_MODE (operands[1])) == MODE_INT |
7881 | || GET_MODE_CLASS (GET_MODE (operands[2])) == MODE_INT) | |
7882 | p = "fidiv"; | |
7883 | else | |
7884 | p = "fdiv"; | |
1deaa899 | 7885 | ssep = "div"; |
2a2ab3f9 JVA |
7886 | break; |
7887 | ||
7888 | default: | |
7889 | abort (); | |
7890 | } | |
7891 | ||
1deaa899 JH |
7892 | if (is_sse) |
7893 | { | |
7894 | strcpy (buf, ssep); | |
7895 | if (GET_MODE (operands[0]) == SFmode) | |
7896 | strcat (buf, "ss\t{%2, %0|%0, %2}"); | |
7897 | else | |
7898 | strcat (buf, "sd\t{%2, %0|%0, %2}"); | |
7899 | return buf; | |
7900 | } | |
e075ae69 | 7901 | strcpy (buf, p); |
2a2ab3f9 JVA |
7902 | |
7903 | switch (GET_CODE (operands[3])) | |
7904 | { | |
7905 | case MULT: | |
7906 | case PLUS: | |
7907 | if (REG_P (operands[2]) && REGNO (operands[0]) == REGNO (operands[2])) | |
7908 | { | |
e3c2afab | 7909 | rtx temp = operands[2]; |
2a2ab3f9 JVA |
7910 | operands[2] = operands[1]; |
7911 | operands[1] = temp; | |
7912 | } | |
7913 | ||
e3c2afab AM |
7914 | /* know operands[0] == operands[1]. */ |
7915 | ||
2a2ab3f9 | 7916 | if (GET_CODE (operands[2]) == MEM) |
e075ae69 RH |
7917 | { |
7918 | p = "%z2\t%2"; | |
7919 | break; | |
7920 | } | |
2a2ab3f9 JVA |
7921 | |
7922 | if (find_regno_note (insn, REG_DEAD, REGNO (operands[2]))) | |
6b28fd63 JL |
7923 | { |
7924 | if (STACK_TOP_P (operands[0])) | |
e3c2afab AM |
7925 | /* How is it that we are storing to a dead operand[2]? |
7926 | Well, presumably operands[1] is dead too. We can't | |
7927 | store the result to st(0) as st(0) gets popped on this | |
7928 | instruction. Instead store to operands[2] (which I | |
7929 | think has to be st(1)). st(1) will be popped later. | |
7930 | gcc <= 2.8.1 didn't have this check and generated | |
7931 | assembly code that the Unixware assembler rejected. */ | |
7932 | p = "p\t{%0, %2|%2, %0}"; /* st(1) = st(0) op st(1); pop */ | |
6b28fd63 | 7933 | else |
e3c2afab | 7934 | p = "p\t{%2, %0|%0, %2}"; /* st(r1) = st(r1) op st(0); pop */ |
e075ae69 | 7935 | break; |
6b28fd63 | 7936 | } |
2a2ab3f9 JVA |
7937 | |
7938 | if (STACK_TOP_P (operands[0])) | |
e3c2afab | 7939 | p = "\t{%y2, %0|%0, %y2}"; /* st(0) = st(0) op st(r2) */ |
2a2ab3f9 | 7940 | else |
e3c2afab | 7941 | p = "\t{%2, %0|%0, %2}"; /* st(r1) = st(r1) op st(0) */ |
e075ae69 | 7942 | break; |
2a2ab3f9 JVA |
7943 | |
7944 | case MINUS: | |
7945 | case DIV: | |
7946 | if (GET_CODE (operands[1]) == MEM) | |
e075ae69 RH |
7947 | { |
7948 | p = "r%z1\t%1"; | |
7949 | break; | |
7950 | } | |
2a2ab3f9 JVA |
7951 | |
7952 | if (GET_CODE (operands[2]) == MEM) | |
e075ae69 RH |
7953 | { |
7954 | p = "%z2\t%2"; | |
7955 | break; | |
7956 | } | |
2a2ab3f9 | 7957 | |
2a2ab3f9 | 7958 | if (find_regno_note (insn, REG_DEAD, REGNO (operands[2]))) |
6b28fd63 | 7959 | { |
e3c2afab AM |
7960 | #if SYSV386_COMPAT |
7961 | /* The SystemV/386 SVR3.2 assembler, and probably all AT&T | |
7962 | derived assemblers, confusingly reverse the direction of | |
7963 | the operation for fsub{r} and fdiv{r} when the | |
7964 | destination register is not st(0). The Intel assembler | |
7965 | doesn't have this brain damage. Read !SYSV386_COMPAT to | |
7966 | figure out what the hardware really does. */ | |
7967 | if (STACK_TOP_P (operands[0])) | |
7968 | p = "{p\t%0, %2|rp\t%2, %0}"; | |
7969 | else | |
7970 | p = "{rp\t%2, %0|p\t%0, %2}"; | |
7971 | #else | |
6b28fd63 | 7972 | if (STACK_TOP_P (operands[0])) |
e3c2afab AM |
7973 | /* As above for fmul/fadd, we can't store to st(0). */ |
7974 | p = "rp\t{%0, %2|%2, %0}"; /* st(1) = st(0) op st(1); pop */ | |
6b28fd63 | 7975 | else |
e3c2afab AM |
7976 | p = "p\t{%2, %0|%0, %2}"; /* st(r1) = st(r1) op st(0); pop */ |
7977 | #endif | |
e075ae69 | 7978 | break; |
6b28fd63 | 7979 | } |
2a2ab3f9 JVA |
7980 | |
7981 | if (find_regno_note (insn, REG_DEAD, REGNO (operands[1]))) | |
6b28fd63 | 7982 | { |
e3c2afab | 7983 | #if SYSV386_COMPAT |
6b28fd63 | 7984 | if (STACK_TOP_P (operands[0])) |
e3c2afab | 7985 | p = "{rp\t%0, %1|p\t%1, %0}"; |
6b28fd63 | 7986 | else |
e3c2afab AM |
7987 | p = "{p\t%1, %0|rp\t%0, %1}"; |
7988 | #else | |
7989 | if (STACK_TOP_P (operands[0])) | |
7990 | p = "p\t{%0, %1|%1, %0}"; /* st(1) = st(1) op st(0); pop */ | |
7991 | else | |
7992 | p = "rp\t{%1, %0|%0, %1}"; /* st(r2) = st(0) op st(r2); pop */ | |
7993 | #endif | |
e075ae69 | 7994 | break; |
6b28fd63 | 7995 | } |
2a2ab3f9 JVA |
7996 | |
7997 | if (STACK_TOP_P (operands[0])) | |
7998 | { | |
7999 | if (STACK_TOP_P (operands[1])) | |
e3c2afab | 8000 | p = "\t{%y2, %0|%0, %y2}"; /* st(0) = st(0) op st(r2) */ |
2a2ab3f9 | 8001 | else |
e3c2afab | 8002 | p = "r\t{%y1, %0|%0, %y1}"; /* st(0) = st(r1) op st(0) */ |
e075ae69 | 8003 | break; |
2a2ab3f9 JVA |
8004 | } |
8005 | else if (STACK_TOP_P (operands[1])) | |
e3c2afab AM |
8006 | { |
8007 | #if SYSV386_COMPAT | |
8008 | p = "{\t%1, %0|r\t%0, %1}"; | |
8009 | #else | |
8010 | p = "r\t{%1, %0|%0, %1}"; /* st(r2) = st(0) op st(r2) */ | |
8011 | #endif | |
8012 | } | |
2a2ab3f9 | 8013 | else |
e3c2afab AM |
8014 | { |
8015 | #if SYSV386_COMPAT | |
8016 | p = "{r\t%2, %0|\t%0, %2}"; | |
8017 | #else | |
8018 | p = "\t{%2, %0|%0, %2}"; /* st(r1) = st(r1) op st(0) */ | |
8019 | #endif | |
8020 | } | |
e075ae69 | 8021 | break; |
2a2ab3f9 JVA |
8022 | |
8023 | default: | |
8024 | abort (); | |
8025 | } | |
e075ae69 RH |
8026 | |
8027 | strcat (buf, p); | |
8028 | return buf; | |
2a2ab3f9 | 8029 | } |
e075ae69 | 8030 | |
a4f31c00 | 8031 | /* Output code to initialize control word copies used by |
7a2e09f4 JH |
8032 | trunc?f?i patterns. NORMAL is set to current control word, while ROUND_DOWN |
8033 | is set to control word rounding downwards. */ | |
8034 | void | |
b96a374d | 8035 | emit_i387_cw_initialization (rtx normal, rtx round_down) |
7a2e09f4 JH |
8036 | { |
8037 | rtx reg = gen_reg_rtx (HImode); | |
8038 | ||
8039 | emit_insn (gen_x86_fnstcw_1 (normal)); | |
8040 | emit_move_insn (reg, normal); | |
8041 | if (!TARGET_PARTIAL_REG_STALL && !optimize_size | |
8042 | && !TARGET_64BIT) | |
8043 | emit_insn (gen_movsi_insv_1 (reg, GEN_INT (0xc))); | |
8044 | else | |
8045 | emit_insn (gen_iorhi3 (reg, reg, GEN_INT (0xc00))); | |
8046 | emit_move_insn (round_down, reg); | |
8047 | } | |
8048 | ||
2a2ab3f9 | 8049 | /* Output code for INSN to convert a float to a signed int. OPERANDS |
46d21d2c | 8050 | are the insn operands. The output may be [HSD]Imode and the input |
e075ae69 | 8051 | operand may be [SDX]Fmode. */ |
2a2ab3f9 | 8052 | |
69ddee61 | 8053 | const char * |
b96a374d | 8054 | output_fix_trunc (rtx insn, rtx *operands) |
2a2ab3f9 JVA |
8055 | { |
8056 | int stack_top_dies = find_regno_note (insn, REG_DEAD, FIRST_STACK_REG) != 0; | |
e075ae69 | 8057 | int dimode_p = GET_MODE (operands[0]) == DImode; |
2a2ab3f9 | 8058 | |
e075ae69 RH |
8059 | /* Jump through a hoop or two for DImode, since the hardware has no |
8060 | non-popping instruction. We used to do this a different way, but | |
8061 | that was somewhat fragile and broke with post-reload splitters. */ | |
a05924f9 JH |
8062 | if (dimode_p && !stack_top_dies) |
8063 | output_asm_insn ("fld\t%y1", operands); | |
e075ae69 | 8064 | |
7a2e09f4 | 8065 | if (!STACK_TOP_P (operands[1])) |
10195bd8 JW |
8066 | abort (); |
8067 | ||
e075ae69 | 8068 | if (GET_CODE (operands[0]) != MEM) |
7a2e09f4 | 8069 | abort (); |
e9a25f70 | 8070 | |
7a2e09f4 | 8071 | output_asm_insn ("fldcw\t%3", operands); |
e075ae69 | 8072 | if (stack_top_dies || dimode_p) |
7a2e09f4 | 8073 | output_asm_insn ("fistp%z0\t%0", operands); |
10195bd8 | 8074 | else |
7a2e09f4 | 8075 | output_asm_insn ("fist%z0\t%0", operands); |
e075ae69 | 8076 | output_asm_insn ("fldcw\t%2", operands); |
10195bd8 | 8077 | |
e075ae69 | 8078 | return ""; |
2a2ab3f9 | 8079 | } |
cda749b1 | 8080 | |
e075ae69 RH |
8081 | /* Output code for INSN to compare OPERANDS. EFLAGS_P is 1 when fcomi |
8082 | should be used and 2 when fnstsw should be used. UNORDERED_P is true | |
8083 | when fucom should be used. */ | |
8084 | ||
69ddee61 | 8085 | const char * |
b96a374d | 8086 | output_fp_compare (rtx insn, rtx *operands, int eflags_p, int unordered_p) |
cda749b1 | 8087 | { |
e075ae69 RH |
8088 | int stack_top_dies; |
8089 | rtx cmp_op0 = operands[0]; | |
8090 | rtx cmp_op1 = operands[1]; | |
0644b628 | 8091 | int is_sse = SSE_REG_P (operands[0]) | SSE_REG_P (operands[1]); |
e075ae69 RH |
8092 | |
8093 | if (eflags_p == 2) | |
8094 | { | |
8095 | cmp_op0 = cmp_op1; | |
8096 | cmp_op1 = operands[2]; | |
8097 | } | |
0644b628 JH |
8098 | if (is_sse) |
8099 | { | |
8100 | if (GET_MODE (operands[0]) == SFmode) | |
8101 | if (unordered_p) | |
8102 | return "ucomiss\t{%1, %0|%0, %1}"; | |
8103 | else | |
a5cf80f0 | 8104 | return "comiss\t{%1, %0|%0, %1}"; |
0644b628 JH |
8105 | else |
8106 | if (unordered_p) | |
8107 | return "ucomisd\t{%1, %0|%0, %1}"; | |
8108 | else | |
a5cf80f0 | 8109 | return "comisd\t{%1, %0|%0, %1}"; |
0644b628 | 8110 | } |
cda749b1 | 8111 | |
e075ae69 | 8112 | if (! STACK_TOP_P (cmp_op0)) |
cda749b1 JW |
8113 | abort (); |
8114 | ||
e075ae69 | 8115 | stack_top_dies = find_regno_note (insn, REG_DEAD, FIRST_STACK_REG) != 0; |
cda749b1 | 8116 | |
e075ae69 RH |
8117 | if (STACK_REG_P (cmp_op1) |
8118 | && stack_top_dies | |
8119 | && find_regno_note (insn, REG_DEAD, REGNO (cmp_op1)) | |
8120 | && REGNO (cmp_op1) != FIRST_STACK_REG) | |
cda749b1 | 8121 | { |
e075ae69 RH |
8122 | /* If both the top of the 387 stack dies, and the other operand |
8123 | is also a stack register that dies, then this must be a | |
8124 | `fcompp' float compare */ | |
8125 | ||
8126 | if (eflags_p == 1) | |
8127 | { | |
8128 | /* There is no double popping fcomi variant. Fortunately, | |
8129 | eflags is immune from the fstp's cc clobbering. */ | |
8130 | if (unordered_p) | |
8131 | output_asm_insn ("fucomip\t{%y1, %0|%0, %y1}", operands); | |
8132 | else | |
8133 | output_asm_insn ("fcomip\t{%y1, %0|%0, %y1}", operands); | |
8134 | return "fstp\t%y0"; | |
8135 | } | |
8136 | else | |
cda749b1 | 8137 | { |
e075ae69 RH |
8138 | if (eflags_p == 2) |
8139 | { | |
8140 | if (unordered_p) | |
8141 | return "fucompp\n\tfnstsw\t%0"; | |
8142 | else | |
8143 | return "fcompp\n\tfnstsw\t%0"; | |
8144 | } | |
cda749b1 JW |
8145 | else |
8146 | { | |
e075ae69 RH |
8147 | if (unordered_p) |
8148 | return "fucompp"; | |
8149 | else | |
8150 | return "fcompp"; | |
cda749b1 JW |
8151 | } |
8152 | } | |
cda749b1 JW |
8153 | } |
8154 | else | |
8155 | { | |
e075ae69 | 8156 | /* Encoded here as eflags_p | intmode | unordered_p | stack_top_dies. */ |
cda749b1 | 8157 | |
0f290768 | 8158 | static const char * const alt[24] = |
e075ae69 RH |
8159 | { |
8160 | "fcom%z1\t%y1", | |
8161 | "fcomp%z1\t%y1", | |
8162 | "fucom%z1\t%y1", | |
8163 | "fucomp%z1\t%y1", | |
0f290768 | 8164 | |
e075ae69 RH |
8165 | "ficom%z1\t%y1", |
8166 | "ficomp%z1\t%y1", | |
8167 | NULL, | |
8168 | NULL, | |
8169 | ||
8170 | "fcomi\t{%y1, %0|%0, %y1}", | |
8171 | "fcomip\t{%y1, %0|%0, %y1}", | |
8172 | "fucomi\t{%y1, %0|%0, %y1}", | |
8173 | "fucomip\t{%y1, %0|%0, %y1}", | |
8174 | ||
8175 | NULL, | |
8176 | NULL, | |
8177 | NULL, | |
8178 | NULL, | |
8179 | ||
8180 | "fcom%z2\t%y2\n\tfnstsw\t%0", | |
8181 | "fcomp%z2\t%y2\n\tfnstsw\t%0", | |
8182 | "fucom%z2\t%y2\n\tfnstsw\t%0", | |
8183 | "fucomp%z2\t%y2\n\tfnstsw\t%0", | |
0f290768 | 8184 | |
e075ae69 RH |
8185 | "ficom%z2\t%y2\n\tfnstsw\t%0", |
8186 | "ficomp%z2\t%y2\n\tfnstsw\t%0", | |
8187 | NULL, | |
8188 | NULL | |
8189 | }; | |
8190 | ||
8191 | int mask; | |
69ddee61 | 8192 | const char *ret; |
e075ae69 RH |
8193 | |
8194 | mask = eflags_p << 3; | |
8195 | mask |= (GET_MODE_CLASS (GET_MODE (operands[1])) == MODE_INT) << 2; | |
8196 | mask |= unordered_p << 1; | |
8197 | mask |= stack_top_dies; | |
8198 | ||
8199 | if (mask >= 24) | |
8200 | abort (); | |
8201 | ret = alt[mask]; | |
8202 | if (ret == NULL) | |
8203 | abort (); | |
cda749b1 | 8204 | |
e075ae69 | 8205 | return ret; |
cda749b1 JW |
8206 | } |
8207 | } | |
2a2ab3f9 | 8208 | |
f88c65f7 | 8209 | void |
b96a374d | 8210 | ix86_output_addr_vec_elt (FILE *file, int value) |
f88c65f7 RH |
8211 | { |
8212 | const char *directive = ASM_LONG; | |
8213 | ||
8214 | if (TARGET_64BIT) | |
8215 | { | |
8216 | #ifdef ASM_QUAD | |
8217 | directive = ASM_QUAD; | |
8218 | #else | |
8219 | abort (); | |
8220 | #endif | |
8221 | } | |
8222 | ||
8223 | fprintf (file, "%s%s%d\n", directive, LPREFIX, value); | |
8224 | } | |
8225 | ||
8226 | void | |
b96a374d | 8227 | ix86_output_addr_diff_elt (FILE *file, int value, int rel) |
f88c65f7 RH |
8228 | { |
8229 | if (TARGET_64BIT) | |
74411039 | 8230 | fprintf (file, "%s%s%d-%s%d\n", |
f88c65f7 RH |
8231 | ASM_LONG, LPREFIX, value, LPREFIX, rel); |
8232 | else if (HAVE_AS_GOTOFF_IN_DATA) | |
8233 | fprintf (file, "%s%s%d@GOTOFF\n", ASM_LONG, LPREFIX, value); | |
b069de3b SS |
8234 | #if TARGET_MACHO |
8235 | else if (TARGET_MACHO) | |
86ecdfb6 AP |
8236 | { |
8237 | fprintf (file, "%s%s%d-", ASM_LONG, LPREFIX, value); | |
8238 | machopic_output_function_base_name (file); | |
8239 | fprintf(file, "\n"); | |
8240 | } | |
b069de3b | 8241 | #endif |
f88c65f7 | 8242 | else |
5fc0e5df KW |
8243 | asm_fprintf (file, "%s%U%s+[.-%s%d]\n", |
8244 | ASM_LONG, GOT_SYMBOL_NAME, LPREFIX, value); | |
f88c65f7 | 8245 | } |
32b5b1aa | 8246 | \f |
a8bac9ab RH |
8247 | /* Generate either "mov $0, reg" or "xor reg, reg", as appropriate |
8248 | for the target. */ | |
8249 | ||
8250 | void | |
b96a374d | 8251 | ix86_expand_clear (rtx dest) |
a8bac9ab RH |
8252 | { |
8253 | rtx tmp; | |
8254 | ||
8255 | /* We play register width games, which are only valid after reload. */ | |
8256 | if (!reload_completed) | |
8257 | abort (); | |
8258 | ||
8259 | /* Avoid HImode and its attendant prefix byte. */ | |
8260 | if (GET_MODE_SIZE (GET_MODE (dest)) < 4) | |
8261 | dest = gen_rtx_REG (SImode, REGNO (dest)); | |
8262 | ||
8263 | tmp = gen_rtx_SET (VOIDmode, dest, const0_rtx); | |
8264 | ||
8265 | /* This predicate should match that for movsi_xor and movdi_xor_rex64. */ | |
8266 | if (reload_completed && (!TARGET_USE_MOV0 || optimize_size)) | |
8267 | { | |
8268 | rtx clob = gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (CCmode, 17)); | |
8269 | tmp = gen_rtx_PARALLEL (VOIDmode, gen_rtvec (2, tmp, clob)); | |
8270 | } | |
8271 | ||
8272 | emit_insn (tmp); | |
8273 | } | |
8274 | ||
f996902d RH |
8275 | /* X is an unchanging MEM. If it is a constant pool reference, return |
8276 | the constant pool rtx, else NULL. */ | |
8277 | ||
8278 | static rtx | |
b96a374d | 8279 | maybe_get_pool_constant (rtx x) |
f996902d | 8280 | { |
69bd9368 | 8281 | x = ix86_delegitimize_address (XEXP (x, 0)); |
f996902d RH |
8282 | |
8283 | if (GET_CODE (x) == SYMBOL_REF && CONSTANT_POOL_ADDRESS_P (x)) | |
8284 | return get_pool_constant (x); | |
8285 | ||
8286 | return NULL_RTX; | |
8287 | } | |
8288 | ||
79325812 | 8289 | void |
b96a374d | 8290 | ix86_expand_move (enum machine_mode mode, rtx operands[]) |
32b5b1aa | 8291 | { |
e075ae69 | 8292 | int strict = (reload_in_progress || reload_completed); |
74dc3e94 RH |
8293 | rtx op0, op1; |
8294 | enum tls_model model; | |
f996902d RH |
8295 | |
8296 | op0 = operands[0]; | |
8297 | op1 = operands[1]; | |
8298 | ||
74dc3e94 RH |
8299 | model = tls_symbolic_operand (op1, Pmode); |
8300 | if (model) | |
f996902d | 8301 | { |
74dc3e94 RH |
8302 | op1 = legitimize_tls_address (op1, model, true); |
8303 | op1 = force_operand (op1, op0); | |
8304 | if (op1 == op0) | |
8305 | return; | |
f996902d | 8306 | } |
74dc3e94 RH |
8307 | |
8308 | if (flag_pic && mode == Pmode && symbolic_operand (op1, Pmode)) | |
f996902d | 8309 | { |
b069de3b SS |
8310 | #if TARGET_MACHO |
8311 | if (MACHOPIC_PURE) | |
8312 | { | |
8313 | rtx temp = ((reload_in_progress | |
8314 | || ((op0 && GET_CODE (op0) == REG) | |
8315 | && mode == Pmode)) | |
8316 | ? op0 : gen_reg_rtx (Pmode)); | |
8317 | op1 = machopic_indirect_data_reference (op1, temp); | |
8318 | op1 = machopic_legitimize_pic_address (op1, mode, | |
8319 | temp == op1 ? 0 : temp); | |
8320 | } | |
74dc3e94 RH |
8321 | else if (MACHOPIC_INDIRECT) |
8322 | op1 = machopic_indirect_data_reference (op1, 0); | |
8323 | if (op0 == op1) | |
8324 | return; | |
8325 | #else | |
f996902d RH |
8326 | if (GET_CODE (op0) == MEM) |
8327 | op1 = force_reg (Pmode, op1); | |
e075ae69 | 8328 | else |
32b5b1aa | 8329 | { |
f996902d | 8330 | rtx temp = op0; |
e075ae69 RH |
8331 | if (GET_CODE (temp) != REG) |
8332 | temp = gen_reg_rtx (Pmode); | |
f996902d RH |
8333 | temp = legitimize_pic_address (op1, temp); |
8334 | if (temp == op0) | |
e075ae69 | 8335 | return; |
f996902d | 8336 | op1 = temp; |
32b5b1aa | 8337 | } |
74dc3e94 | 8338 | #endif /* TARGET_MACHO */ |
e075ae69 RH |
8339 | } |
8340 | else | |
8341 | { | |
f996902d | 8342 | if (GET_CODE (op0) == MEM |
44cf5b6a | 8343 | && (PUSH_ROUNDING (GET_MODE_SIZE (mode)) != GET_MODE_SIZE (mode) |
f996902d RH |
8344 | || !push_operand (op0, mode)) |
8345 | && GET_CODE (op1) == MEM) | |
8346 | op1 = force_reg (mode, op1); | |
e9a25f70 | 8347 | |
f996902d RH |
8348 | if (push_operand (op0, mode) |
8349 | && ! general_no_elim_operand (op1, mode)) | |
8350 | op1 = copy_to_mode_reg (mode, op1); | |
2c5a510c | 8351 | |
44cf5b6a JH |
8352 | /* Force large constants in 64bit compilation into register |
8353 | to get them CSEed. */ | |
8354 | if (TARGET_64BIT && mode == DImode | |
f996902d RH |
8355 | && immediate_operand (op1, mode) |
8356 | && !x86_64_zero_extended_value (op1) | |
8357 | && !register_operand (op0, mode) | |
44cf5b6a | 8358 | && optimize && !reload_completed && !reload_in_progress) |
f996902d | 8359 | op1 = copy_to_mode_reg (mode, op1); |
44cf5b6a | 8360 | |
e075ae69 | 8361 | if (FLOAT_MODE_P (mode)) |
32b5b1aa | 8362 | { |
d7a29404 JH |
8363 | /* If we are loading a floating point constant to a register, |
8364 | force the value to memory now, since we'll get better code | |
8365 | out the back end. */ | |
e075ae69 RH |
8366 | |
8367 | if (strict) | |
8368 | ; | |
ddc67067 MM |
8369 | else if (GET_CODE (op1) == CONST_DOUBLE) |
8370 | { | |
8371 | op1 = validize_mem (force_const_mem (mode, op1)); | |
8372 | if (!register_operand (op0, mode)) | |
8373 | { | |
8374 | rtx temp = gen_reg_rtx (mode); | |
8375 | emit_insn (gen_rtx_SET (VOIDmode, temp, op1)); | |
8376 | emit_move_insn (op0, temp); | |
8377 | return; | |
8378 | } | |
8379 | } | |
32b5b1aa | 8380 | } |
32b5b1aa | 8381 | } |
e9a25f70 | 8382 | |
74dc3e94 | 8383 | emit_insn (gen_rtx_SET (VOIDmode, op0, op1)); |
e075ae69 | 8384 | } |
e9a25f70 | 8385 | |
e37af218 | 8386 | void |
b96a374d | 8387 | ix86_expand_vector_move (enum machine_mode mode, rtx operands[]) |
e37af218 RH |
8388 | { |
8389 | /* Force constants other than zero into memory. We do not know how | |
8390 | the instructions used to build constants modify the upper 64 bits | |
8391 | of the register, once we have that information we may be able | |
8392 | to handle some of them more efficiently. */ | |
8393 | if ((reload_in_progress | reload_completed) == 0 | |
8394 | && register_operand (operands[0], mode) | |
fdc4b40b | 8395 | && CONSTANT_P (operands[1]) && operands[1] != CONST0_RTX (mode)) |
2b28d405 | 8396 | operands[1] = validize_mem (force_const_mem (mode, operands[1])); |
e37af218 RH |
8397 | |
8398 | /* Make operand1 a register if it isn't already. */ | |
f8ca7923 | 8399 | if (!no_new_pseudos |
e37af218 | 8400 | && !register_operand (operands[0], mode) |
b105d6da | 8401 | && !register_operand (operands[1], mode)) |
e37af218 | 8402 | { |
59bef189 | 8403 | rtx temp = force_reg (GET_MODE (operands[1]), operands[1]); |
e37af218 RH |
8404 | emit_move_insn (operands[0], temp); |
8405 | return; | |
8406 | } | |
8407 | ||
8408 | emit_insn (gen_rtx_SET (VOIDmode, operands[0], operands[1])); | |
fce5a9f2 | 8409 | } |
e37af218 | 8410 | |
e075ae69 RH |
8411 | /* Attempt to expand a binary operator. Make the expansion closer to the |
8412 | actual machine, then just general_operand, which will allow 3 separate | |
9d81fc27 | 8413 | memory references (one output, two input) in a single insn. */ |
e9a25f70 | 8414 | |
e075ae69 | 8415 | void |
b96a374d AJ |
8416 | ix86_expand_binary_operator (enum rtx_code code, enum machine_mode mode, |
8417 | rtx operands[]) | |
e075ae69 RH |
8418 | { |
8419 | int matching_memory; | |
8420 | rtx src1, src2, dst, op, clob; | |
8421 | ||
8422 | dst = operands[0]; | |
8423 | src1 = operands[1]; | |
8424 | src2 = operands[2]; | |
8425 | ||
8426 | /* Recognize <var1> = <value> <op> <var1> for commutative operators */ | |
8427 | if (GET_RTX_CLASS (code) == 'c' | |
8428 | && (rtx_equal_p (dst, src2) | |
8429 | || immediate_operand (src1, mode))) | |
8430 | { | |
8431 | rtx temp = src1; | |
8432 | src1 = src2; | |
8433 | src2 = temp; | |
32b5b1aa | 8434 | } |
e9a25f70 | 8435 | |
e075ae69 RH |
8436 | /* If the destination is memory, and we do not have matching source |
8437 | operands, do things in registers. */ | |
8438 | matching_memory = 0; | |
8439 | if (GET_CODE (dst) == MEM) | |
32b5b1aa | 8440 | { |
e075ae69 RH |
8441 | if (rtx_equal_p (dst, src1)) |
8442 | matching_memory = 1; | |
8443 | else if (GET_RTX_CLASS (code) == 'c' | |
8444 | && rtx_equal_p (dst, src2)) | |
8445 | matching_memory = 2; | |
8446 | else | |
8447 | dst = gen_reg_rtx (mode); | |
8448 | } | |
0f290768 | 8449 | |
e075ae69 RH |
8450 | /* Both source operands cannot be in memory. */ |
8451 | if (GET_CODE (src1) == MEM && GET_CODE (src2) == MEM) | |
8452 | { | |
8453 | if (matching_memory != 2) | |
8454 | src2 = force_reg (mode, src2); | |
8455 | else | |
8456 | src1 = force_reg (mode, src1); | |
32b5b1aa | 8457 | } |
e9a25f70 | 8458 | |
06a964de JH |
8459 | /* If the operation is not commutable, source 1 cannot be a constant |
8460 | or non-matching memory. */ | |
0f290768 | 8461 | if ((CONSTANT_P (src1) |
06a964de JH |
8462 | || (!matching_memory && GET_CODE (src1) == MEM)) |
8463 | && GET_RTX_CLASS (code) != 'c') | |
e075ae69 | 8464 | src1 = force_reg (mode, src1); |
0f290768 | 8465 | |
e075ae69 | 8466 | /* If optimizing, copy to regs to improve CSE */ |
fe577e58 | 8467 | if (optimize && ! no_new_pseudos) |
32b5b1aa | 8468 | { |
e075ae69 RH |
8469 | if (GET_CODE (dst) == MEM) |
8470 | dst = gen_reg_rtx (mode); | |
8471 | if (GET_CODE (src1) == MEM) | |
8472 | src1 = force_reg (mode, src1); | |
8473 | if (GET_CODE (src2) == MEM) | |
8474 | src2 = force_reg (mode, src2); | |
32b5b1aa | 8475 | } |
e9a25f70 | 8476 | |
e075ae69 RH |
8477 | /* Emit the instruction. */ |
8478 | ||
8479 | op = gen_rtx_SET (VOIDmode, dst, gen_rtx_fmt_ee (code, mode, src1, src2)); | |
8480 | if (reload_in_progress) | |
8481 | { | |
8482 | /* Reload doesn't know about the flags register, and doesn't know that | |
8483 | it doesn't want to clobber it. We can only do this with PLUS. */ | |
8484 | if (code != PLUS) | |
8485 | abort (); | |
8486 | emit_insn (op); | |
8487 | } | |
8488 | else | |
32b5b1aa | 8489 | { |
e075ae69 RH |
8490 | clob = gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (CCmode, FLAGS_REG)); |
8491 | emit_insn (gen_rtx_PARALLEL (VOIDmode, gen_rtvec (2, op, clob))); | |
32b5b1aa | 8492 | } |
e9a25f70 | 8493 | |
e075ae69 RH |
8494 | /* Fix up the destination if needed. */ |
8495 | if (dst != operands[0]) | |
8496 | emit_move_insn (operands[0], dst); | |
8497 | } | |
8498 | ||
8499 | /* Return TRUE or FALSE depending on whether the binary operator meets the | |
8500 | appropriate constraints. */ | |
8501 | ||
8502 | int | |
b96a374d AJ |
8503 | ix86_binary_operator_ok (enum rtx_code code, |
8504 | enum machine_mode mode ATTRIBUTE_UNUSED, | |
8505 | rtx operands[3]) | |
e075ae69 RH |
8506 | { |
8507 | /* Both source operands cannot be in memory. */ | |
8508 | if (GET_CODE (operands[1]) == MEM && GET_CODE (operands[2]) == MEM) | |
8509 | return 0; | |
8510 | /* If the operation is not commutable, source 1 cannot be a constant. */ | |
8511 | if (CONSTANT_P (operands[1]) && GET_RTX_CLASS (code) != 'c') | |
8512 | return 0; | |
8513 | /* If the destination is memory, we must have a matching source operand. */ | |
8514 | if (GET_CODE (operands[0]) == MEM | |
8515 | && ! (rtx_equal_p (operands[0], operands[1]) | |
8516 | || (GET_RTX_CLASS (code) == 'c' | |
8517 | && rtx_equal_p (operands[0], operands[2])))) | |
8518 | return 0; | |
06a964de | 8519 | /* If the operation is not commutable and the source 1 is memory, we must |
d6a7951f | 8520 | have a matching destination. */ |
06a964de JH |
8521 | if (GET_CODE (operands[1]) == MEM |
8522 | && GET_RTX_CLASS (code) != 'c' | |
8523 | && ! rtx_equal_p (operands[0], operands[1])) | |
8524 | return 0; | |
e075ae69 RH |
8525 | return 1; |
8526 | } | |
8527 | ||
8528 | /* Attempt to expand a unary operator. Make the expansion closer to the | |
8529 | actual machine, then just general_operand, which will allow 2 separate | |
9d81fc27 | 8530 | memory references (one output, one input) in a single insn. */ |
e075ae69 | 8531 | |
9d81fc27 | 8532 | void |
b96a374d AJ |
8533 | ix86_expand_unary_operator (enum rtx_code code, enum machine_mode mode, |
8534 | rtx operands[]) | |
e075ae69 | 8535 | { |
06a964de JH |
8536 | int matching_memory; |
8537 | rtx src, dst, op, clob; | |
8538 | ||
8539 | dst = operands[0]; | |
8540 | src = operands[1]; | |
e075ae69 | 8541 | |
06a964de JH |
8542 | /* If the destination is memory, and we do not have matching source |
8543 | operands, do things in registers. */ | |
8544 | matching_memory = 0; | |
8545 | if (GET_CODE (dst) == MEM) | |
32b5b1aa | 8546 | { |
06a964de JH |
8547 | if (rtx_equal_p (dst, src)) |
8548 | matching_memory = 1; | |
e075ae69 | 8549 | else |
06a964de | 8550 | dst = gen_reg_rtx (mode); |
32b5b1aa | 8551 | } |
e9a25f70 | 8552 | |
06a964de JH |
8553 | /* When source operand is memory, destination must match. */ |
8554 | if (!matching_memory && GET_CODE (src) == MEM) | |
8555 | src = force_reg (mode, src); | |
0f290768 | 8556 | |
06a964de | 8557 | /* If optimizing, copy to regs to improve CSE */ |
fe577e58 | 8558 | if (optimize && ! no_new_pseudos) |
06a964de JH |
8559 | { |
8560 | if (GET_CODE (dst) == MEM) | |
8561 | dst = gen_reg_rtx (mode); | |
8562 | if (GET_CODE (src) == MEM) | |
8563 | src = force_reg (mode, src); | |
8564 | } | |
8565 | ||
8566 | /* Emit the instruction. */ | |
8567 | ||
8568 | op = gen_rtx_SET (VOIDmode, dst, gen_rtx_fmt_e (code, mode, src)); | |
8569 | if (reload_in_progress || code == NOT) | |
8570 | { | |
8571 | /* Reload doesn't know about the flags register, and doesn't know that | |
8572 | it doesn't want to clobber it. */ | |
8573 | if (code != NOT) | |
8574 | abort (); | |
8575 | emit_insn (op); | |
8576 | } | |
8577 | else | |
8578 | { | |
8579 | clob = gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (CCmode, FLAGS_REG)); | |
8580 | emit_insn (gen_rtx_PARALLEL (VOIDmode, gen_rtvec (2, op, clob))); | |
8581 | } | |
8582 | ||
8583 | /* Fix up the destination if needed. */ | |
8584 | if (dst != operands[0]) | |
8585 | emit_move_insn (operands[0], dst); | |
e075ae69 RH |
8586 | } |
8587 | ||
8588 | /* Return TRUE or FALSE depending on whether the unary operator meets the | |
8589 | appropriate constraints. */ | |
8590 | ||
8591 | int | |
b96a374d AJ |
8592 | ix86_unary_operator_ok (enum rtx_code code ATTRIBUTE_UNUSED, |
8593 | enum machine_mode mode ATTRIBUTE_UNUSED, | |
8594 | rtx operands[2] ATTRIBUTE_UNUSED) | |
e075ae69 | 8595 | { |
06a964de JH |
8596 | /* If one of operands is memory, source and destination must match. */ |
8597 | if ((GET_CODE (operands[0]) == MEM | |
8598 | || GET_CODE (operands[1]) == MEM) | |
8599 | && ! rtx_equal_p (operands[0], operands[1])) | |
8600 | return FALSE; | |
e075ae69 RH |
8601 | return TRUE; |
8602 | } | |
8603 | ||
16189740 RH |
8604 | /* Return TRUE or FALSE depending on whether the first SET in INSN |
8605 | has source and destination with matching CC modes, and that the | |
8606 | CC mode is at least as constrained as REQ_MODE. */ | |
8607 | ||
8608 | int | |
b96a374d | 8609 | ix86_match_ccmode (rtx insn, enum machine_mode req_mode) |
16189740 RH |
8610 | { |
8611 | rtx set; | |
8612 | enum machine_mode set_mode; | |
8613 | ||
8614 | set = PATTERN (insn); | |
8615 | if (GET_CODE (set) == PARALLEL) | |
8616 | set = XVECEXP (set, 0, 0); | |
8617 | if (GET_CODE (set) != SET) | |
8618 | abort (); | |
9076b9c1 JH |
8619 | if (GET_CODE (SET_SRC (set)) != COMPARE) |
8620 | abort (); | |
16189740 RH |
8621 | |
8622 | set_mode = GET_MODE (SET_DEST (set)); | |
8623 | switch (set_mode) | |
8624 | { | |
9076b9c1 JH |
8625 | case CCNOmode: |
8626 | if (req_mode != CCNOmode | |
8627 | && (req_mode != CCmode | |
8628 | || XEXP (SET_SRC (set), 1) != const0_rtx)) | |
8629 | return 0; | |
8630 | break; | |
16189740 | 8631 | case CCmode: |
9076b9c1 | 8632 | if (req_mode == CCGCmode) |
16189740 | 8633 | return 0; |
5efb1046 | 8634 | /* FALLTHRU */ |
9076b9c1 JH |
8635 | case CCGCmode: |
8636 | if (req_mode == CCGOCmode || req_mode == CCNOmode) | |
8637 | return 0; | |
5efb1046 | 8638 | /* FALLTHRU */ |
9076b9c1 | 8639 | case CCGOCmode: |
16189740 RH |
8640 | if (req_mode == CCZmode) |
8641 | return 0; | |
5efb1046 | 8642 | /* FALLTHRU */ |
16189740 RH |
8643 | case CCZmode: |
8644 | break; | |
8645 | ||
8646 | default: | |
8647 | abort (); | |
8648 | } | |
8649 | ||
8650 | return (GET_MODE (SET_SRC (set)) == set_mode); | |
8651 | } | |
8652 | ||
e075ae69 RH |
8653 | /* Generate insn patterns to do an integer compare of OPERANDS. */ |
8654 | ||
8655 | static rtx | |
b96a374d | 8656 | ix86_expand_int_compare (enum rtx_code code, rtx op0, rtx op1) |
e075ae69 RH |
8657 | { |
8658 | enum machine_mode cmpmode; | |
8659 | rtx tmp, flags; | |
8660 | ||
8661 | cmpmode = SELECT_CC_MODE (code, op0, op1); | |
8662 | flags = gen_rtx_REG (cmpmode, FLAGS_REG); | |
8663 | ||
8664 | /* This is very simple, but making the interface the same as in the | |
8665 | FP case makes the rest of the code easier. */ | |
8666 | tmp = gen_rtx_COMPARE (cmpmode, op0, op1); | |
8667 | emit_insn (gen_rtx_SET (VOIDmode, flags, tmp)); | |
8668 | ||
8669 | /* Return the test that should be put into the flags user, i.e. | |
8670 | the bcc, scc, or cmov instruction. */ | |
8671 | return gen_rtx_fmt_ee (code, VOIDmode, flags, const0_rtx); | |
8672 | } | |
8673 | ||
3a3677ff RH |
8674 | /* Figure out whether to use ordered or unordered fp comparisons. |
8675 | Return the appropriate mode to use. */ | |
e075ae69 | 8676 | |
b1cdafbb | 8677 | enum machine_mode |
b96a374d | 8678 | ix86_fp_compare_mode (enum rtx_code code ATTRIBUTE_UNUSED) |
e075ae69 | 8679 | { |
9e7adcb3 JH |
8680 | /* ??? In order to make all comparisons reversible, we do all comparisons |
8681 | non-trapping when compiling for IEEE. Once gcc is able to distinguish | |
8682 | all forms trapping and nontrapping comparisons, we can make inequality | |
8683 | comparisons trapping again, since it results in better code when using | |
8684 | FCOM based compares. */ | |
8685 | return TARGET_IEEE_FP ? CCFPUmode : CCFPmode; | |
3a3677ff RH |
8686 | } |
8687 | ||
9076b9c1 | 8688 | enum machine_mode |
b96a374d | 8689 | ix86_cc_mode (enum rtx_code code, rtx op0, rtx op1) |
9076b9c1 JH |
8690 | { |
8691 | if (GET_MODE_CLASS (GET_MODE (op0)) == MODE_FLOAT) | |
8692 | return ix86_fp_compare_mode (code); | |
8693 | switch (code) | |
8694 | { | |
8695 | /* Only zero flag is needed. */ | |
8696 | case EQ: /* ZF=0 */ | |
8697 | case NE: /* ZF!=0 */ | |
8698 | return CCZmode; | |
8699 | /* Codes needing carry flag. */ | |
265dab10 JH |
8700 | case GEU: /* CF=0 */ |
8701 | case GTU: /* CF=0 & ZF=0 */ | |
7e08e190 JH |
8702 | case LTU: /* CF=1 */ |
8703 | case LEU: /* CF=1 | ZF=1 */ | |
265dab10 | 8704 | return CCmode; |
9076b9c1 JH |
8705 | /* Codes possibly doable only with sign flag when |
8706 | comparing against zero. */ | |
8707 | case GE: /* SF=OF or SF=0 */ | |
7e08e190 | 8708 | case LT: /* SF<>OF or SF=1 */ |
9076b9c1 JH |
8709 | if (op1 == const0_rtx) |
8710 | return CCGOCmode; | |
8711 | else | |
8712 | /* For other cases Carry flag is not required. */ | |
8713 | return CCGCmode; | |
8714 | /* Codes doable only with sign flag when comparing | |
8715 | against zero, but we miss jump instruction for it | |
4aae8a9a | 8716 | so we need to use relational tests against overflow |
9076b9c1 JH |
8717 | that thus needs to be zero. */ |
8718 | case GT: /* ZF=0 & SF=OF */ | |
8719 | case LE: /* ZF=1 | SF<>OF */ | |
8720 | if (op1 == const0_rtx) | |
8721 | return CCNOmode; | |
8722 | else | |
8723 | return CCGCmode; | |
7fcd7218 JH |
8724 | /* strcmp pattern do (use flags) and combine may ask us for proper |
8725 | mode. */ | |
8726 | case USE: | |
8727 | return CCmode; | |
9076b9c1 | 8728 | default: |
0f290768 | 8729 | abort (); |
9076b9c1 JH |
8730 | } |
8731 | } | |
8732 | ||
e129d93a ILT |
8733 | /* Return the fixed registers used for condition codes. */ |
8734 | ||
8735 | static bool | |
8736 | ix86_fixed_condition_code_regs (unsigned int *p1, unsigned int *p2) | |
8737 | { | |
8738 | *p1 = FLAGS_REG; | |
8739 | *p2 = FPSR_REG; | |
8740 | return true; | |
8741 | } | |
8742 | ||
8743 | /* If two condition code modes are compatible, return a condition code | |
8744 | mode which is compatible with both. Otherwise, return | |
8745 | VOIDmode. */ | |
8746 | ||
8747 | static enum machine_mode | |
8748 | ix86_cc_modes_compatible (enum machine_mode m1, enum machine_mode m2) | |
8749 | { | |
8750 | if (m1 == m2) | |
8751 | return m1; | |
8752 | ||
8753 | if (GET_MODE_CLASS (m1) != MODE_CC || GET_MODE_CLASS (m2) != MODE_CC) | |
8754 | return VOIDmode; | |
8755 | ||
8756 | if ((m1 == CCGCmode && m2 == CCGOCmode) | |
8757 | || (m1 == CCGOCmode && m2 == CCGCmode)) | |
8758 | return CCGCmode; | |
8759 | ||
8760 | switch (m1) | |
8761 | { | |
8762 | default: | |
8763 | abort (); | |
8764 | ||
8765 | case CCmode: | |
8766 | case CCGCmode: | |
8767 | case CCGOCmode: | |
8768 | case CCNOmode: | |
8769 | case CCZmode: | |
8770 | switch (m2) | |
8771 | { | |
8772 | default: | |
8773 | return VOIDmode; | |
8774 | ||
8775 | case CCmode: | |
8776 | case CCGCmode: | |
8777 | case CCGOCmode: | |
8778 | case CCNOmode: | |
8779 | case CCZmode: | |
8780 | return CCmode; | |
8781 | } | |
8782 | ||
8783 | case CCFPmode: | |
8784 | case CCFPUmode: | |
8785 | /* These are only compatible with themselves, which we already | |
8786 | checked above. */ | |
8787 | return VOIDmode; | |
8788 | } | |
8789 | } | |
8790 | ||
3a3677ff RH |
8791 | /* Return true if we should use an FCOMI instruction for this fp comparison. */ |
8792 | ||
a940d8bd | 8793 | int |
b96a374d | 8794 | ix86_use_fcomi_compare (enum rtx_code code ATTRIBUTE_UNUSED) |
3a3677ff | 8795 | { |
9e7adcb3 JH |
8796 | enum rtx_code swapped_code = swap_condition (code); |
8797 | return ((ix86_fp_comparison_cost (code) == ix86_fp_comparison_fcomi_cost (code)) | |
8798 | || (ix86_fp_comparison_cost (swapped_code) | |
8799 | == ix86_fp_comparison_fcomi_cost (swapped_code))); | |
3a3677ff RH |
8800 | } |
8801 | ||
0f290768 | 8802 | /* Swap, force into registers, or otherwise massage the two operands |
3a3677ff | 8803 | to a fp comparison. The operands are updated in place; the new |
d1f87653 | 8804 | comparison code is returned. */ |
3a3677ff RH |
8805 | |
8806 | static enum rtx_code | |
b96a374d | 8807 | ix86_prepare_fp_compare_args (enum rtx_code code, rtx *pop0, rtx *pop1) |
3a3677ff RH |
8808 | { |
8809 | enum machine_mode fpcmp_mode = ix86_fp_compare_mode (code); | |
8810 | rtx op0 = *pop0, op1 = *pop1; | |
8811 | enum machine_mode op_mode = GET_MODE (op0); | |
0644b628 | 8812 | int is_sse = SSE_REG_P (op0) | SSE_REG_P (op1); |
3a3677ff | 8813 | |
e075ae69 | 8814 | /* All of the unordered compare instructions only work on registers. |
3a3677ff RH |
8815 | The same is true of the XFmode compare instructions. The same is |
8816 | true of the fcomi compare instructions. */ | |
8817 | ||
0644b628 JH |
8818 | if (!is_sse |
8819 | && (fpcmp_mode == CCFPUmode | |
8820 | || op_mode == XFmode | |
0644b628 | 8821 | || ix86_use_fcomi_compare (code))) |
e075ae69 | 8822 | { |
3a3677ff RH |
8823 | op0 = force_reg (op_mode, op0); |
8824 | op1 = force_reg (op_mode, op1); | |
e075ae69 RH |
8825 | } |
8826 | else | |
8827 | { | |
8828 | /* %%% We only allow op1 in memory; op0 must be st(0). So swap | |
8829 | things around if they appear profitable, otherwise force op0 | |
8830 | into a register. */ | |
8831 | ||
8832 | if (standard_80387_constant_p (op0) == 0 | |
8833 | || (GET_CODE (op0) == MEM | |
8834 | && ! (standard_80387_constant_p (op1) == 0 | |
8835 | || GET_CODE (op1) == MEM))) | |
32b5b1aa | 8836 | { |
e075ae69 RH |
8837 | rtx tmp; |
8838 | tmp = op0, op0 = op1, op1 = tmp; | |
8839 | code = swap_condition (code); | |
8840 | } | |
8841 | ||
8842 | if (GET_CODE (op0) != REG) | |
3a3677ff | 8843 | op0 = force_reg (op_mode, op0); |
e075ae69 RH |
8844 | |
8845 | if (CONSTANT_P (op1)) | |
8846 | { | |
8847 | if (standard_80387_constant_p (op1)) | |
3a3677ff | 8848 | op1 = force_reg (op_mode, op1); |
e075ae69 | 8849 | else |
3a3677ff | 8850 | op1 = validize_mem (force_const_mem (op_mode, op1)); |
32b5b1aa SC |
8851 | } |
8852 | } | |
e9a25f70 | 8853 | |
9e7adcb3 JH |
8854 | /* Try to rearrange the comparison to make it cheaper. */ |
8855 | if (ix86_fp_comparison_cost (code) | |
8856 | > ix86_fp_comparison_cost (swap_condition (code)) | |
558740bf | 8857 | && (GET_CODE (op1) == REG || !no_new_pseudos)) |
9e7adcb3 JH |
8858 | { |
8859 | rtx tmp; | |
8860 | tmp = op0, op0 = op1, op1 = tmp; | |
8861 | code = swap_condition (code); | |
8862 | if (GET_CODE (op0) != REG) | |
8863 | op0 = force_reg (op_mode, op0); | |
8864 | } | |
8865 | ||
3a3677ff RH |
8866 | *pop0 = op0; |
8867 | *pop1 = op1; | |
8868 | return code; | |
8869 | } | |
8870 | ||
c0c102a9 JH |
8871 | /* Convert comparison codes we use to represent FP comparison to integer |
8872 | code that will result in proper branch. Return UNKNOWN if no such code | |
8873 | is available. */ | |
8874 | static enum rtx_code | |
b96a374d | 8875 | ix86_fp_compare_code_to_integer (enum rtx_code code) |
c0c102a9 JH |
8876 | { |
8877 | switch (code) | |
8878 | { | |
8879 | case GT: | |
8880 | return GTU; | |
8881 | case GE: | |
8882 | return GEU; | |
8883 | case ORDERED: | |
8884 | case UNORDERED: | |
8885 | return code; | |
8886 | break; | |
8887 | case UNEQ: | |
8888 | return EQ; | |
8889 | break; | |
8890 | case UNLT: | |
8891 | return LTU; | |
8892 | break; | |
8893 | case UNLE: | |
8894 | return LEU; | |
8895 | break; | |
8896 | case LTGT: | |
8897 | return NE; | |
8898 | break; | |
8899 | default: | |
8900 | return UNKNOWN; | |
8901 | } | |
8902 | } | |
8903 | ||
8904 | /* Split comparison code CODE into comparisons we can do using branch | |
8905 | instructions. BYPASS_CODE is comparison code for branch that will | |
8906 | branch around FIRST_CODE and SECOND_CODE. If some of branches | |
8907 | is not required, set value to NIL. | |
8908 | We never require more than two branches. */ | |
8909 | static void | |
b96a374d AJ |
8910 | ix86_fp_comparison_codes (enum rtx_code code, enum rtx_code *bypass_code, |
8911 | enum rtx_code *first_code, | |
8912 | enum rtx_code *second_code) | |
c0c102a9 JH |
8913 | { |
8914 | *first_code = code; | |
8915 | *bypass_code = NIL; | |
8916 | *second_code = NIL; | |
8917 | ||
8918 | /* The fcomi comparison sets flags as follows: | |
8919 | ||
8920 | cmp ZF PF CF | |
8921 | > 0 0 0 | |
8922 | < 0 0 1 | |
8923 | = 1 0 0 | |
8924 | un 1 1 1 */ | |
8925 | ||
8926 | switch (code) | |
8927 | { | |
8928 | case GT: /* GTU - CF=0 & ZF=0 */ | |
8929 | case GE: /* GEU - CF=0 */ | |
8930 | case ORDERED: /* PF=0 */ | |
8931 | case UNORDERED: /* PF=1 */ | |
8932 | case UNEQ: /* EQ - ZF=1 */ | |
8933 | case UNLT: /* LTU - CF=1 */ | |
8934 | case UNLE: /* LEU - CF=1 | ZF=1 */ | |
8935 | case LTGT: /* EQ - ZF=0 */ | |
8936 | break; | |
8937 | case LT: /* LTU - CF=1 - fails on unordered */ | |
8938 | *first_code = UNLT; | |
8939 | *bypass_code = UNORDERED; | |
8940 | break; | |
8941 | case LE: /* LEU - CF=1 | ZF=1 - fails on unordered */ | |
8942 | *first_code = UNLE; | |
8943 | *bypass_code = UNORDERED; | |
8944 | break; | |
8945 | case EQ: /* EQ - ZF=1 - fails on unordered */ | |
8946 | *first_code = UNEQ; | |
8947 | *bypass_code = UNORDERED; | |
8948 | break; | |
8949 | case NE: /* NE - ZF=0 - fails on unordered */ | |
8950 | *first_code = LTGT; | |
8951 | *second_code = UNORDERED; | |
8952 | break; | |
8953 | case UNGE: /* GEU - CF=0 - fails on unordered */ | |
8954 | *first_code = GE; | |
8955 | *second_code = UNORDERED; | |
8956 | break; | |
8957 | case UNGT: /* GTU - CF=0 & ZF=0 - fails on unordered */ | |
8958 | *first_code = GT; | |
8959 | *second_code = UNORDERED; | |
8960 | break; | |
8961 | default: | |
8962 | abort (); | |
8963 | } | |
8964 | if (!TARGET_IEEE_FP) | |
8965 | { | |
8966 | *second_code = NIL; | |
8967 | *bypass_code = NIL; | |
8968 | } | |
8969 | } | |
8970 | ||
9e7adcb3 | 8971 | /* Return cost of comparison done fcom + arithmetics operations on AX. |
5bdc5878 | 8972 | All following functions do use number of instructions as a cost metrics. |
9e7adcb3 JH |
8973 | In future this should be tweaked to compute bytes for optimize_size and |
8974 | take into account performance of various instructions on various CPUs. */ | |
8975 | static int | |
b96a374d | 8976 | ix86_fp_comparison_arithmetics_cost (enum rtx_code code) |
9e7adcb3 JH |
8977 | { |
8978 | if (!TARGET_IEEE_FP) | |
8979 | return 4; | |
8980 | /* The cost of code output by ix86_expand_fp_compare. */ | |
8981 | switch (code) | |
8982 | { | |
8983 | case UNLE: | |
8984 | case UNLT: | |
8985 | case LTGT: | |
8986 | case GT: | |
8987 | case GE: | |
8988 | case UNORDERED: | |
8989 | case ORDERED: | |
8990 | case UNEQ: | |
8991 | return 4; | |
8992 | break; | |
8993 | case LT: | |
8994 | case NE: | |
8995 | case EQ: | |
8996 | case UNGE: | |
8997 | return 5; | |
8998 | break; | |
8999 | case LE: | |
9000 | case UNGT: | |
9001 | return 6; | |
9002 | break; | |
9003 | default: | |
9004 | abort (); | |
9005 | } | |
9006 | } | |
9007 | ||
9008 | /* Return cost of comparison done using fcomi operation. | |
9009 | See ix86_fp_comparison_arithmetics_cost for the metrics. */ | |
9010 | static int | |
b96a374d | 9011 | ix86_fp_comparison_fcomi_cost (enum rtx_code code) |
9e7adcb3 JH |
9012 | { |
9013 | enum rtx_code bypass_code, first_code, second_code; | |
d1f87653 | 9014 | /* Return arbitrarily high cost when instruction is not supported - this |
9e7adcb3 JH |
9015 | prevents gcc from using it. */ |
9016 | if (!TARGET_CMOVE) | |
9017 | return 1024; | |
9018 | ix86_fp_comparison_codes (code, &bypass_code, &first_code, &second_code); | |
9019 | return (bypass_code != NIL || second_code != NIL) + 2; | |
9020 | } | |
9021 | ||
9022 | /* Return cost of comparison done using sahf operation. | |
9023 | See ix86_fp_comparison_arithmetics_cost for the metrics. */ | |
9024 | static int | |
b96a374d | 9025 | ix86_fp_comparison_sahf_cost (enum rtx_code code) |
9e7adcb3 JH |
9026 | { |
9027 | enum rtx_code bypass_code, first_code, second_code; | |
d1f87653 | 9028 | /* Return arbitrarily high cost when instruction is not preferred - this |
9e7adcb3 JH |
9029 | avoids gcc from using it. */ |
9030 | if (!TARGET_USE_SAHF && !optimize_size) | |
9031 | return 1024; | |
9032 | ix86_fp_comparison_codes (code, &bypass_code, &first_code, &second_code); | |
9033 | return (bypass_code != NIL || second_code != NIL) + 3; | |
9034 | } | |
9035 | ||
9036 | /* Compute cost of the comparison done using any method. | |
9037 | See ix86_fp_comparison_arithmetics_cost for the metrics. */ | |
9038 | static int | |
b96a374d | 9039 | ix86_fp_comparison_cost (enum rtx_code code) |
9e7adcb3 JH |
9040 | { |
9041 | int fcomi_cost, sahf_cost, arithmetics_cost = 1024; | |
9042 | int min; | |
9043 | ||
9044 | fcomi_cost = ix86_fp_comparison_fcomi_cost (code); | |
9045 | sahf_cost = ix86_fp_comparison_sahf_cost (code); | |
9046 | ||
9047 | min = arithmetics_cost = ix86_fp_comparison_arithmetics_cost (code); | |
9048 | if (min > sahf_cost) | |
9049 | min = sahf_cost; | |
9050 | if (min > fcomi_cost) | |
9051 | min = fcomi_cost; | |
9052 | return min; | |
9053 | } | |
c0c102a9 | 9054 | |
3a3677ff RH |
9055 | /* Generate insn patterns to do a floating point compare of OPERANDS. */ |
9056 | ||
9e7adcb3 | 9057 | static rtx |
b96a374d AJ |
9058 | ix86_expand_fp_compare (enum rtx_code code, rtx op0, rtx op1, rtx scratch, |
9059 | rtx *second_test, rtx *bypass_test) | |
3a3677ff RH |
9060 | { |
9061 | enum machine_mode fpcmp_mode, intcmp_mode; | |
c0c102a9 | 9062 | rtx tmp, tmp2; |
9e7adcb3 | 9063 | int cost = ix86_fp_comparison_cost (code); |
c0c102a9 | 9064 | enum rtx_code bypass_code, first_code, second_code; |
3a3677ff RH |
9065 | |
9066 | fpcmp_mode = ix86_fp_compare_mode (code); | |
9067 | code = ix86_prepare_fp_compare_args (code, &op0, &op1); | |
9068 | ||
9e7adcb3 JH |
9069 | if (second_test) |
9070 | *second_test = NULL_RTX; | |
9071 | if (bypass_test) | |
9072 | *bypass_test = NULL_RTX; | |
9073 | ||
c0c102a9 JH |
9074 | ix86_fp_comparison_codes (code, &bypass_code, &first_code, &second_code); |
9075 | ||
9e7adcb3 JH |
9076 | /* Do fcomi/sahf based test when profitable. */ |
9077 | if ((bypass_code == NIL || bypass_test) | |
9078 | && (second_code == NIL || second_test) | |
9079 | && ix86_fp_comparison_arithmetics_cost (code) > cost) | |
32b5b1aa | 9080 | { |
c0c102a9 JH |
9081 | if (TARGET_CMOVE) |
9082 | { | |
9083 | tmp = gen_rtx_COMPARE (fpcmp_mode, op0, op1); | |
9084 | tmp = gen_rtx_SET (VOIDmode, gen_rtx_REG (fpcmp_mode, FLAGS_REG), | |
9085 | tmp); | |
9086 | emit_insn (tmp); | |
9087 | } | |
9088 | else | |
9089 | { | |
9090 | tmp = gen_rtx_COMPARE (fpcmp_mode, op0, op1); | |
8ee41eaf | 9091 | tmp2 = gen_rtx_UNSPEC (HImode, gen_rtvec (1, tmp), UNSPEC_FNSTSW); |
bf71a4f8 JH |
9092 | if (!scratch) |
9093 | scratch = gen_reg_rtx (HImode); | |
c0c102a9 JH |
9094 | emit_insn (gen_rtx_SET (VOIDmode, scratch, tmp2)); |
9095 | emit_insn (gen_x86_sahf_1 (scratch)); | |
9096 | } | |
e075ae69 RH |
9097 | |
9098 | /* The FP codes work out to act like unsigned. */ | |
9a915772 | 9099 | intcmp_mode = fpcmp_mode; |
9e7adcb3 JH |
9100 | code = first_code; |
9101 | if (bypass_code != NIL) | |
9102 | *bypass_test = gen_rtx_fmt_ee (bypass_code, VOIDmode, | |
9103 | gen_rtx_REG (intcmp_mode, FLAGS_REG), | |
9104 | const0_rtx); | |
9105 | if (second_code != NIL) | |
9106 | *second_test = gen_rtx_fmt_ee (second_code, VOIDmode, | |
9107 | gen_rtx_REG (intcmp_mode, FLAGS_REG), | |
9108 | const0_rtx); | |
e075ae69 RH |
9109 | } |
9110 | else | |
9111 | { | |
9112 | /* Sadness wrt reg-stack pops killing fpsr -- gotta get fnstsw first. */ | |
e075ae69 | 9113 | tmp = gen_rtx_COMPARE (fpcmp_mode, op0, op1); |
8ee41eaf | 9114 | tmp2 = gen_rtx_UNSPEC (HImode, gen_rtvec (1, tmp), UNSPEC_FNSTSW); |
bf71a4f8 JH |
9115 | if (!scratch) |
9116 | scratch = gen_reg_rtx (HImode); | |
3a3677ff | 9117 | emit_insn (gen_rtx_SET (VOIDmode, scratch, tmp2)); |
e075ae69 | 9118 | |
9a915772 JH |
9119 | /* In the unordered case, we have to check C2 for NaN's, which |
9120 | doesn't happen to work out to anything nice combination-wise. | |
9121 | So do some bit twiddling on the value we've got in AH to come | |
9122 | up with an appropriate set of condition codes. */ | |
e075ae69 | 9123 | |
9a915772 JH |
9124 | intcmp_mode = CCNOmode; |
9125 | switch (code) | |
32b5b1aa | 9126 | { |
9a915772 JH |
9127 | case GT: |
9128 | case UNGT: | |
9129 | if (code == GT || !TARGET_IEEE_FP) | |
32b5b1aa | 9130 | { |
3a3677ff | 9131 | emit_insn (gen_testqi_ext_ccno_0 (scratch, GEN_INT (0x45))); |
e075ae69 | 9132 | code = EQ; |
9a915772 JH |
9133 | } |
9134 | else | |
9135 | { | |
9136 | emit_insn (gen_andqi_ext_0 (scratch, scratch, GEN_INT (0x45))); | |
9137 | emit_insn (gen_addqi_ext_1 (scratch, scratch, constm1_rtx)); | |
9138 | emit_insn (gen_cmpqi_ext_3 (scratch, GEN_INT (0x44))); | |
9139 | intcmp_mode = CCmode; | |
9140 | code = GEU; | |
9141 | } | |
9142 | break; | |
9143 | case LT: | |
9144 | case UNLT: | |
9145 | if (code == LT && TARGET_IEEE_FP) | |
9146 | { | |
3a3677ff RH |
9147 | emit_insn (gen_andqi_ext_0 (scratch, scratch, GEN_INT (0x45))); |
9148 | emit_insn (gen_cmpqi_ext_3 (scratch, GEN_INT (0x01))); | |
e075ae69 RH |
9149 | intcmp_mode = CCmode; |
9150 | code = EQ; | |
9a915772 JH |
9151 | } |
9152 | else | |
9153 | { | |
9154 | emit_insn (gen_testqi_ext_ccno_0 (scratch, GEN_INT (0x01))); | |
9155 | code = NE; | |
9156 | } | |
9157 | break; | |
9158 | case GE: | |
9159 | case UNGE: | |
9160 | if (code == GE || !TARGET_IEEE_FP) | |
9161 | { | |
3a3677ff | 9162 | emit_insn (gen_testqi_ext_ccno_0 (scratch, GEN_INT (0x05))); |
e075ae69 | 9163 | code = EQ; |
9a915772 JH |
9164 | } |
9165 | else | |
9166 | { | |
9167 | emit_insn (gen_andqi_ext_0 (scratch, scratch, GEN_INT (0x45))); | |
9168 | emit_insn (gen_xorqi_cc_ext_1 (scratch, scratch, | |
9169 | GEN_INT (0x01))); | |
9170 | code = NE; | |
9171 | } | |
9172 | break; | |
9173 | case LE: | |
9174 | case UNLE: | |
9175 | if (code == LE && TARGET_IEEE_FP) | |
9176 | { | |
3a3677ff RH |
9177 | emit_insn (gen_andqi_ext_0 (scratch, scratch, GEN_INT (0x45))); |
9178 | emit_insn (gen_addqi_ext_1 (scratch, scratch, constm1_rtx)); | |
9179 | emit_insn (gen_cmpqi_ext_3 (scratch, GEN_INT (0x40))); | |
e075ae69 RH |
9180 | intcmp_mode = CCmode; |
9181 | code = LTU; | |
9a915772 JH |
9182 | } |
9183 | else | |
9184 | { | |
9185 | emit_insn (gen_testqi_ext_ccno_0 (scratch, GEN_INT (0x45))); | |
9186 | code = NE; | |
9187 | } | |
9188 | break; | |
9189 | case EQ: | |
9190 | case UNEQ: | |
9191 | if (code == EQ && TARGET_IEEE_FP) | |
9192 | { | |
3a3677ff RH |
9193 | emit_insn (gen_andqi_ext_0 (scratch, scratch, GEN_INT (0x45))); |
9194 | emit_insn (gen_cmpqi_ext_3 (scratch, GEN_INT (0x40))); | |
e075ae69 RH |
9195 | intcmp_mode = CCmode; |
9196 | code = EQ; | |
9a915772 JH |
9197 | } |
9198 | else | |
9199 | { | |
3a3677ff RH |
9200 | emit_insn (gen_testqi_ext_ccno_0 (scratch, GEN_INT (0x40))); |
9201 | code = NE; | |
9202 | break; | |
9a915772 JH |
9203 | } |
9204 | break; | |
9205 | case NE: | |
9206 | case LTGT: | |
9207 | if (code == NE && TARGET_IEEE_FP) | |
9208 | { | |
3a3677ff | 9209 | emit_insn (gen_andqi_ext_0 (scratch, scratch, GEN_INT (0x45))); |
9a915772 JH |
9210 | emit_insn (gen_xorqi_cc_ext_1 (scratch, scratch, |
9211 | GEN_INT (0x40))); | |
3a3677ff | 9212 | code = NE; |
9a915772 JH |
9213 | } |
9214 | else | |
9215 | { | |
3a3677ff RH |
9216 | emit_insn (gen_testqi_ext_ccno_0 (scratch, GEN_INT (0x40))); |
9217 | code = EQ; | |
32b5b1aa | 9218 | } |
9a915772 JH |
9219 | break; |
9220 | ||
9221 | case UNORDERED: | |
9222 | emit_insn (gen_testqi_ext_ccno_0 (scratch, GEN_INT (0x04))); | |
9223 | code = NE; | |
9224 | break; | |
9225 | case ORDERED: | |
9226 | emit_insn (gen_testqi_ext_ccno_0 (scratch, GEN_INT (0x04))); | |
9227 | code = EQ; | |
9228 | break; | |
9229 | ||
9230 | default: | |
9231 | abort (); | |
32b5b1aa | 9232 | } |
32b5b1aa | 9233 | } |
e075ae69 RH |
9234 | |
9235 | /* Return the test that should be put into the flags user, i.e. | |
9236 | the bcc, scc, or cmov instruction. */ | |
9237 | return gen_rtx_fmt_ee (code, VOIDmode, | |
9238 | gen_rtx_REG (intcmp_mode, FLAGS_REG), | |
9239 | const0_rtx); | |
9240 | } | |
9241 | ||
9e3e266c | 9242 | rtx |
b96a374d | 9243 | ix86_expand_compare (enum rtx_code code, rtx *second_test, rtx *bypass_test) |
e075ae69 RH |
9244 | { |
9245 | rtx op0, op1, ret; | |
9246 | op0 = ix86_compare_op0; | |
9247 | op1 = ix86_compare_op1; | |
9248 | ||
a1b8572c JH |
9249 | if (second_test) |
9250 | *second_test = NULL_RTX; | |
9251 | if (bypass_test) | |
9252 | *bypass_test = NULL_RTX; | |
9253 | ||
e075ae69 | 9254 | if (GET_MODE_CLASS (GET_MODE (op0)) == MODE_FLOAT) |
bf71a4f8 | 9255 | ret = ix86_expand_fp_compare (code, op0, op1, NULL_RTX, |
77ebd435 | 9256 | second_test, bypass_test); |
32b5b1aa | 9257 | else |
e075ae69 RH |
9258 | ret = ix86_expand_int_compare (code, op0, op1); |
9259 | ||
9260 | return ret; | |
9261 | } | |
9262 | ||
03598dea JH |
9263 | /* Return true if the CODE will result in nontrivial jump sequence. */ |
9264 | bool | |
b96a374d | 9265 | ix86_fp_jump_nontrivial_p (enum rtx_code code) |
03598dea JH |
9266 | { |
9267 | enum rtx_code bypass_code, first_code, second_code; | |
9268 | if (!TARGET_CMOVE) | |
9269 | return true; | |
9270 | ix86_fp_comparison_codes (code, &bypass_code, &first_code, &second_code); | |
9271 | return bypass_code != NIL || second_code != NIL; | |
9272 | } | |
9273 | ||
e075ae69 | 9274 | void |
b96a374d | 9275 | ix86_expand_branch (enum rtx_code code, rtx label) |
e075ae69 | 9276 | { |
3a3677ff | 9277 | rtx tmp; |
e075ae69 | 9278 | |
3a3677ff | 9279 | switch (GET_MODE (ix86_compare_op0)) |
32b5b1aa | 9280 | { |
3a3677ff RH |
9281 | case QImode: |
9282 | case HImode: | |
9283 | case SImode: | |
0d7d98ee | 9284 | simple: |
a1b8572c | 9285 | tmp = ix86_expand_compare (code, NULL, NULL); |
e075ae69 RH |
9286 | tmp = gen_rtx_IF_THEN_ELSE (VOIDmode, tmp, |
9287 | gen_rtx_LABEL_REF (VOIDmode, label), | |
9288 | pc_rtx); | |
9289 | emit_jump_insn (gen_rtx_SET (VOIDmode, pc_rtx, tmp)); | |
32b5b1aa | 9290 | return; |
e075ae69 | 9291 | |
3a3677ff RH |
9292 | case SFmode: |
9293 | case DFmode: | |
0f290768 | 9294 | case XFmode: |
3a3677ff RH |
9295 | { |
9296 | rtvec vec; | |
9297 | int use_fcomi; | |
03598dea | 9298 | enum rtx_code bypass_code, first_code, second_code; |
3a3677ff RH |
9299 | |
9300 | code = ix86_prepare_fp_compare_args (code, &ix86_compare_op0, | |
9301 | &ix86_compare_op1); | |
fce5a9f2 | 9302 | |
03598dea JH |
9303 | ix86_fp_comparison_codes (code, &bypass_code, &first_code, &second_code); |
9304 | ||
9305 | /* Check whether we will use the natural sequence with one jump. If | |
9306 | so, we can expand jump early. Otherwise delay expansion by | |
9307 | creating compound insn to not confuse optimizers. */ | |
9308 | if (bypass_code == NIL && second_code == NIL | |
9309 | && TARGET_CMOVE) | |
9310 | { | |
9311 | ix86_split_fp_branch (code, ix86_compare_op0, ix86_compare_op1, | |
9312 | gen_rtx_LABEL_REF (VOIDmode, label), | |
9313 | pc_rtx, NULL_RTX); | |
9314 | } | |
9315 | else | |
9316 | { | |
9317 | tmp = gen_rtx_fmt_ee (code, VOIDmode, | |
9318 | ix86_compare_op0, ix86_compare_op1); | |
9319 | tmp = gen_rtx_IF_THEN_ELSE (VOIDmode, tmp, | |
9320 | gen_rtx_LABEL_REF (VOIDmode, label), | |
9321 | pc_rtx); | |
9322 | tmp = gen_rtx_SET (VOIDmode, pc_rtx, tmp); | |
9323 | ||
9324 | use_fcomi = ix86_use_fcomi_compare (code); | |
9325 | vec = rtvec_alloc (3 + !use_fcomi); | |
9326 | RTVEC_ELT (vec, 0) = tmp; | |
9327 | RTVEC_ELT (vec, 1) | |
9328 | = gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (CCFPmode, 18)); | |
9329 | RTVEC_ELT (vec, 2) | |
9330 | = gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (CCFPmode, 17)); | |
9331 | if (! use_fcomi) | |
9332 | RTVEC_ELT (vec, 3) | |
9333 | = gen_rtx_CLOBBER (VOIDmode, gen_rtx_SCRATCH (HImode)); | |
9334 | ||
9335 | emit_jump_insn (gen_rtx_PARALLEL (VOIDmode, vec)); | |
9336 | } | |
3a3677ff RH |
9337 | return; |
9338 | } | |
32b5b1aa | 9339 | |
3a3677ff | 9340 | case DImode: |
0d7d98ee JH |
9341 | if (TARGET_64BIT) |
9342 | goto simple; | |
3a3677ff RH |
9343 | /* Expand DImode branch into multiple compare+branch. */ |
9344 | { | |
9345 | rtx lo[2], hi[2], label2; | |
9346 | enum rtx_code code1, code2, code3; | |
32b5b1aa | 9347 | |
3a3677ff RH |
9348 | if (CONSTANT_P (ix86_compare_op0) && ! CONSTANT_P (ix86_compare_op1)) |
9349 | { | |
9350 | tmp = ix86_compare_op0; | |
9351 | ix86_compare_op0 = ix86_compare_op1; | |
9352 | ix86_compare_op1 = tmp; | |
9353 | code = swap_condition (code); | |
9354 | } | |
9355 | split_di (&ix86_compare_op0, 1, lo+0, hi+0); | |
9356 | split_di (&ix86_compare_op1, 1, lo+1, hi+1); | |
32b5b1aa | 9357 | |
3a3677ff RH |
9358 | /* When comparing for equality, we can use (hi0^hi1)|(lo0^lo1) to |
9359 | avoid two branches. This costs one extra insn, so disable when | |
9360 | optimizing for size. */ | |
32b5b1aa | 9361 | |
3a3677ff RH |
9362 | if ((code == EQ || code == NE) |
9363 | && (!optimize_size | |
9364 | || hi[1] == const0_rtx || lo[1] == const0_rtx)) | |
9365 | { | |
9366 | rtx xor0, xor1; | |
32b5b1aa | 9367 | |
3a3677ff RH |
9368 | xor1 = hi[0]; |
9369 | if (hi[1] != const0_rtx) | |
9370 | xor1 = expand_binop (SImode, xor_optab, xor1, hi[1], | |
9371 | NULL_RTX, 0, OPTAB_WIDEN); | |
32b5b1aa | 9372 | |
3a3677ff RH |
9373 | xor0 = lo[0]; |
9374 | if (lo[1] != const0_rtx) | |
9375 | xor0 = expand_binop (SImode, xor_optab, xor0, lo[1], | |
9376 | NULL_RTX, 0, OPTAB_WIDEN); | |
e075ae69 | 9377 | |
3a3677ff RH |
9378 | tmp = expand_binop (SImode, ior_optab, xor1, xor0, |
9379 | NULL_RTX, 0, OPTAB_WIDEN); | |
32b5b1aa | 9380 | |
3a3677ff RH |
9381 | ix86_compare_op0 = tmp; |
9382 | ix86_compare_op1 = const0_rtx; | |
9383 | ix86_expand_branch (code, label); | |
9384 | return; | |
9385 | } | |
e075ae69 | 9386 | |
1f9124e4 JJ |
9387 | /* Otherwise, if we are doing less-than or greater-or-equal-than, |
9388 | op1 is a constant and the low word is zero, then we can just | |
9389 | examine the high word. */ | |
32b5b1aa | 9390 | |
1f9124e4 JJ |
9391 | if (GET_CODE (hi[1]) == CONST_INT && lo[1] == const0_rtx) |
9392 | switch (code) | |
9393 | { | |
9394 | case LT: case LTU: case GE: case GEU: | |
9395 | ix86_compare_op0 = hi[0]; | |
9396 | ix86_compare_op1 = hi[1]; | |
9397 | ix86_expand_branch (code, label); | |
9398 | return; | |
9399 | default: | |
9400 | break; | |
9401 | } | |
e075ae69 | 9402 | |
3a3677ff | 9403 | /* Otherwise, we need two or three jumps. */ |
e075ae69 | 9404 | |
3a3677ff | 9405 | label2 = gen_label_rtx (); |
e075ae69 | 9406 | |
3a3677ff RH |
9407 | code1 = code; |
9408 | code2 = swap_condition (code); | |
9409 | code3 = unsigned_condition (code); | |
e075ae69 | 9410 | |
3a3677ff RH |
9411 | switch (code) |
9412 | { | |
9413 | case LT: case GT: case LTU: case GTU: | |
9414 | break; | |
e075ae69 | 9415 | |
3a3677ff RH |
9416 | case LE: code1 = LT; code2 = GT; break; |
9417 | case GE: code1 = GT; code2 = LT; break; | |
9418 | case LEU: code1 = LTU; code2 = GTU; break; | |
9419 | case GEU: code1 = GTU; code2 = LTU; break; | |
e075ae69 | 9420 | |
3a3677ff RH |
9421 | case EQ: code1 = NIL; code2 = NE; break; |
9422 | case NE: code2 = NIL; break; | |
e075ae69 | 9423 | |
3a3677ff RH |
9424 | default: |
9425 | abort (); | |
9426 | } | |
e075ae69 | 9427 | |
3a3677ff RH |
9428 | /* |
9429 | * a < b => | |
9430 | * if (hi(a) < hi(b)) goto true; | |
9431 | * if (hi(a) > hi(b)) goto false; | |
9432 | * if (lo(a) < lo(b)) goto true; | |
9433 | * false: | |
9434 | */ | |
9435 | ||
9436 | ix86_compare_op0 = hi[0]; | |
9437 | ix86_compare_op1 = hi[1]; | |
9438 | ||
9439 | if (code1 != NIL) | |
9440 | ix86_expand_branch (code1, label); | |
9441 | if (code2 != NIL) | |
9442 | ix86_expand_branch (code2, label2); | |
9443 | ||
9444 | ix86_compare_op0 = lo[0]; | |
9445 | ix86_compare_op1 = lo[1]; | |
9446 | ix86_expand_branch (code3, label); | |
9447 | ||
9448 | if (code2 != NIL) | |
9449 | emit_label (label2); | |
9450 | return; | |
9451 | } | |
e075ae69 | 9452 | |
3a3677ff RH |
9453 | default: |
9454 | abort (); | |
9455 | } | |
32b5b1aa | 9456 | } |
e075ae69 | 9457 | |
9e7adcb3 JH |
9458 | /* Split branch based on floating point condition. */ |
9459 | void | |
b96a374d AJ |
9460 | ix86_split_fp_branch (enum rtx_code code, rtx op1, rtx op2, |
9461 | rtx target1, rtx target2, rtx tmp) | |
9e7adcb3 JH |
9462 | { |
9463 | rtx second, bypass; | |
9464 | rtx label = NULL_RTX; | |
03598dea | 9465 | rtx condition; |
6b24c259 JH |
9466 | int bypass_probability = -1, second_probability = -1, probability = -1; |
9467 | rtx i; | |
9e7adcb3 JH |
9468 | |
9469 | if (target2 != pc_rtx) | |
9470 | { | |
9471 | rtx tmp = target2; | |
9472 | code = reverse_condition_maybe_unordered (code); | |
9473 | target2 = target1; | |
9474 | target1 = tmp; | |
9475 | } | |
9476 | ||
9477 | condition = ix86_expand_fp_compare (code, op1, op2, | |
9478 | tmp, &second, &bypass); | |
6b24c259 JH |
9479 | |
9480 | if (split_branch_probability >= 0) | |
9481 | { | |
9482 | /* Distribute the probabilities across the jumps. | |
9483 | Assume the BYPASS and SECOND to be always test | |
9484 | for UNORDERED. */ | |
9485 | probability = split_branch_probability; | |
9486 | ||
d6a7951f | 9487 | /* Value of 1 is low enough to make no need for probability |
6b24c259 JH |
9488 | to be updated. Later we may run some experiments and see |
9489 | if unordered values are more frequent in practice. */ | |
9490 | if (bypass) | |
9491 | bypass_probability = 1; | |
9492 | if (second) | |
9493 | second_probability = 1; | |
9494 | } | |
9e7adcb3 JH |
9495 | if (bypass != NULL_RTX) |
9496 | { | |
9497 | label = gen_label_rtx (); | |
6b24c259 JH |
9498 | i = emit_jump_insn (gen_rtx_SET |
9499 | (VOIDmode, pc_rtx, | |
9500 | gen_rtx_IF_THEN_ELSE (VOIDmode, | |
9501 | bypass, | |
9502 | gen_rtx_LABEL_REF (VOIDmode, | |
9503 | label), | |
9504 | pc_rtx))); | |
9505 | if (bypass_probability >= 0) | |
9506 | REG_NOTES (i) | |
9507 | = gen_rtx_EXPR_LIST (REG_BR_PROB, | |
9508 | GEN_INT (bypass_probability), | |
9509 | REG_NOTES (i)); | |
9510 | } | |
9511 | i = emit_jump_insn (gen_rtx_SET | |
9e7adcb3 JH |
9512 | (VOIDmode, pc_rtx, |
9513 | gen_rtx_IF_THEN_ELSE (VOIDmode, | |
6b24c259 JH |
9514 | condition, target1, target2))); |
9515 | if (probability >= 0) | |
9516 | REG_NOTES (i) | |
9517 | = gen_rtx_EXPR_LIST (REG_BR_PROB, | |
9518 | GEN_INT (probability), | |
9519 | REG_NOTES (i)); | |
9520 | if (second != NULL_RTX) | |
9e7adcb3 | 9521 | { |
6b24c259 JH |
9522 | i = emit_jump_insn (gen_rtx_SET |
9523 | (VOIDmode, pc_rtx, | |
9524 | gen_rtx_IF_THEN_ELSE (VOIDmode, second, target1, | |
9525 | target2))); | |
9526 | if (second_probability >= 0) | |
9527 | REG_NOTES (i) | |
9528 | = gen_rtx_EXPR_LIST (REG_BR_PROB, | |
9529 | GEN_INT (second_probability), | |
9530 | REG_NOTES (i)); | |
9e7adcb3 | 9531 | } |
9e7adcb3 JH |
9532 | if (label != NULL_RTX) |
9533 | emit_label (label); | |
9534 | } | |
9535 | ||
32b5b1aa | 9536 | int |
b96a374d | 9537 | ix86_expand_setcc (enum rtx_code code, rtx dest) |
32b5b1aa | 9538 | { |
3a627503 | 9539 | rtx ret, tmp, tmpreg, equiv; |
a1b8572c | 9540 | rtx second_test, bypass_test; |
e075ae69 | 9541 | |
885a70fd JH |
9542 | if (GET_MODE (ix86_compare_op0) == DImode |
9543 | && !TARGET_64BIT) | |
e075ae69 RH |
9544 | return 0; /* FAIL */ |
9545 | ||
b932f770 JH |
9546 | if (GET_MODE (dest) != QImode) |
9547 | abort (); | |
e075ae69 | 9548 | |
a1b8572c | 9549 | ret = ix86_expand_compare (code, &second_test, &bypass_test); |
e075ae69 RH |
9550 | PUT_MODE (ret, QImode); |
9551 | ||
9552 | tmp = dest; | |
a1b8572c | 9553 | tmpreg = dest; |
32b5b1aa | 9554 | |
e075ae69 | 9555 | emit_insn (gen_rtx_SET (VOIDmode, tmp, ret)); |
a1b8572c JH |
9556 | if (bypass_test || second_test) |
9557 | { | |
9558 | rtx test = second_test; | |
9559 | int bypass = 0; | |
9560 | rtx tmp2 = gen_reg_rtx (QImode); | |
9561 | if (bypass_test) | |
9562 | { | |
9563 | if (second_test) | |
b531087a | 9564 | abort (); |
a1b8572c JH |
9565 | test = bypass_test; |
9566 | bypass = 1; | |
9567 | PUT_CODE (test, reverse_condition_maybe_unordered (GET_CODE (test))); | |
9568 | } | |
9569 | PUT_MODE (test, QImode); | |
9570 | emit_insn (gen_rtx_SET (VOIDmode, tmp2, test)); | |
9571 | ||
9572 | if (bypass) | |
9573 | emit_insn (gen_andqi3 (tmp, tmpreg, tmp2)); | |
9574 | else | |
9575 | emit_insn (gen_iorqi3 (tmp, tmpreg, tmp2)); | |
9576 | } | |
e075ae69 | 9577 | |
3a627503 RS |
9578 | /* Attach a REG_EQUAL note describing the comparison result. */ |
9579 | equiv = simplify_gen_relational (code, QImode, | |
9580 | GET_MODE (ix86_compare_op0), | |
9581 | ix86_compare_op0, ix86_compare_op1); | |
9582 | set_unique_reg_note (get_last_insn (), REG_EQUAL, equiv); | |
9583 | ||
e075ae69 | 9584 | return 1; /* DONE */ |
32b5b1aa | 9585 | } |
e075ae69 | 9586 | |
c35d187f RH |
9587 | /* Expand comparison setting or clearing carry flag. Return true when |
9588 | successful and set pop for the operation. */ | |
9589 | static bool | |
b96a374d | 9590 | ix86_expand_carry_flag_compare (enum rtx_code code, rtx op0, rtx op1, rtx *pop) |
4977bab6 ZW |
9591 | { |
9592 | enum machine_mode mode = | |
9593 | GET_MODE (op0) != VOIDmode ? GET_MODE (op0) : GET_MODE (op1); | |
9594 | ||
9595 | /* Do not handle DImode compares that go trought special path. Also we can't | |
43f3a59d | 9596 | deal with FP compares yet. This is possible to add. */ |
e6e81735 JH |
9597 | if ((mode == DImode && !TARGET_64BIT)) |
9598 | return false; | |
9599 | if (FLOAT_MODE_P (mode)) | |
9600 | { | |
9601 | rtx second_test = NULL, bypass_test = NULL; | |
9602 | rtx compare_op, compare_seq; | |
9603 | ||
9604 | /* Shortcut: following common codes never translate into carry flag compares. */ | |
9605 | if (code == EQ || code == NE || code == UNEQ || code == LTGT | |
9606 | || code == ORDERED || code == UNORDERED) | |
9607 | return false; | |
9608 | ||
9609 | /* These comparisons require zero flag; swap operands so they won't. */ | |
9610 | if ((code == GT || code == UNLE || code == LE || code == UNGT) | |
9611 | && !TARGET_IEEE_FP) | |
9612 | { | |
9613 | rtx tmp = op0; | |
9614 | op0 = op1; | |
9615 | op1 = tmp; | |
9616 | code = swap_condition (code); | |
9617 | } | |
9618 | ||
c51e6d85 KH |
9619 | /* Try to expand the comparison and verify that we end up with carry flag |
9620 | based comparison. This is fails to be true only when we decide to expand | |
9621 | comparison using arithmetic that is not too common scenario. */ | |
e6e81735 JH |
9622 | start_sequence (); |
9623 | compare_op = ix86_expand_fp_compare (code, op0, op1, NULL_RTX, | |
9624 | &second_test, &bypass_test); | |
9625 | compare_seq = get_insns (); | |
9626 | end_sequence (); | |
9627 | ||
9628 | if (second_test || bypass_test) | |
9629 | return false; | |
9630 | if (GET_MODE (XEXP (compare_op, 0)) == CCFPmode | |
9631 | || GET_MODE (XEXP (compare_op, 0)) == CCFPUmode) | |
9632 | code = ix86_fp_compare_code_to_integer (GET_CODE (compare_op)); | |
9633 | else | |
9634 | code = GET_CODE (compare_op); | |
9635 | if (code != LTU && code != GEU) | |
9636 | return false; | |
9637 | emit_insn (compare_seq); | |
9638 | *pop = compare_op; | |
9639 | return true; | |
9640 | } | |
9641 | if (!INTEGRAL_MODE_P (mode)) | |
4977bab6 ZW |
9642 | return false; |
9643 | switch (code) | |
9644 | { | |
9645 | case LTU: | |
9646 | case GEU: | |
9647 | break; | |
9648 | ||
9649 | /* Convert a==0 into (unsigned)a<1. */ | |
9650 | case EQ: | |
9651 | case NE: | |
9652 | if (op1 != const0_rtx) | |
9653 | return false; | |
9654 | op1 = const1_rtx; | |
9655 | code = (code == EQ ? LTU : GEU); | |
9656 | break; | |
9657 | ||
9658 | /* Convert a>b into b<a or a>=b-1. */ | |
9659 | case GTU: | |
9660 | case LEU: | |
9661 | if (GET_CODE (op1) == CONST_INT) | |
9662 | { | |
9663 | op1 = gen_int_mode (INTVAL (op1) + 1, GET_MODE (op0)); | |
9664 | /* Bail out on overflow. We still can swap operands but that | |
43f3a59d | 9665 | would force loading of the constant into register. */ |
4977bab6 ZW |
9666 | if (op1 == const0_rtx |
9667 | || !x86_64_immediate_operand (op1, GET_MODE (op1))) | |
9668 | return false; | |
9669 | code = (code == GTU ? GEU : LTU); | |
9670 | } | |
9671 | else | |
9672 | { | |
9673 | rtx tmp = op1; | |
9674 | op1 = op0; | |
9675 | op0 = tmp; | |
9676 | code = (code == GTU ? LTU : GEU); | |
9677 | } | |
9678 | break; | |
9679 | ||
ccea753c | 9680 | /* Convert a>=0 into (unsigned)a<0x80000000. */ |
4977bab6 ZW |
9681 | case LT: |
9682 | case GE: | |
9683 | if (mode == DImode || op1 != const0_rtx) | |
9684 | return false; | |
ccea753c | 9685 | op1 = gen_int_mode (1 << (GET_MODE_BITSIZE (mode) - 1), mode); |
4977bab6 ZW |
9686 | code = (code == LT ? GEU : LTU); |
9687 | break; | |
9688 | case LE: | |
9689 | case GT: | |
9690 | if (mode == DImode || op1 != constm1_rtx) | |
9691 | return false; | |
ccea753c | 9692 | op1 = gen_int_mode (1 << (GET_MODE_BITSIZE (mode) - 1), mode); |
4977bab6 ZW |
9693 | code = (code == LE ? GEU : LTU); |
9694 | break; | |
9695 | ||
9696 | default: | |
9697 | return false; | |
9698 | } | |
ebe75517 JH |
9699 | /* Swapping operands may cause constant to appear as first operand. */ |
9700 | if (!nonimmediate_operand (op0, VOIDmode)) | |
9701 | { | |
9702 | if (no_new_pseudos) | |
9703 | return false; | |
9704 | op0 = force_reg (mode, op0); | |
9705 | } | |
4977bab6 ZW |
9706 | ix86_compare_op0 = op0; |
9707 | ix86_compare_op1 = op1; | |
9708 | *pop = ix86_expand_compare (code, NULL, NULL); | |
9709 | if (GET_CODE (*pop) != LTU && GET_CODE (*pop) != GEU) | |
9710 | abort (); | |
9711 | return true; | |
9712 | } | |
9713 | ||
32b5b1aa | 9714 | int |
b96a374d | 9715 | ix86_expand_int_movcc (rtx operands[]) |
32b5b1aa | 9716 | { |
e075ae69 RH |
9717 | enum rtx_code code = GET_CODE (operands[1]), compare_code; |
9718 | rtx compare_seq, compare_op; | |
a1b8572c | 9719 | rtx second_test, bypass_test; |
635559ab | 9720 | enum machine_mode mode = GET_MODE (operands[0]); |
4977bab6 | 9721 | bool sign_bit_compare_p = false;; |
3a3677ff | 9722 | |
e075ae69 | 9723 | start_sequence (); |
a1b8572c | 9724 | compare_op = ix86_expand_compare (code, &second_test, &bypass_test); |
2f937369 | 9725 | compare_seq = get_insns (); |
e075ae69 RH |
9726 | end_sequence (); |
9727 | ||
9728 | compare_code = GET_CODE (compare_op); | |
9729 | ||
4977bab6 ZW |
9730 | if ((ix86_compare_op1 == const0_rtx && (code == GE || code == LT)) |
9731 | || (ix86_compare_op1 == constm1_rtx && (code == GT || code == LE))) | |
9732 | sign_bit_compare_p = true; | |
9733 | ||
e075ae69 RH |
9734 | /* Don't attempt mode expansion here -- if we had to expand 5 or 6 |
9735 | HImode insns, we'd be swallowed in word prefix ops. */ | |
9736 | ||
4977bab6 | 9737 | if ((mode != HImode || TARGET_FAST_PREFIX) |
635559ab | 9738 | && (mode != DImode || TARGET_64BIT) |
0f290768 | 9739 | && GET_CODE (operands[2]) == CONST_INT |
e075ae69 RH |
9740 | && GET_CODE (operands[3]) == CONST_INT) |
9741 | { | |
9742 | rtx out = operands[0]; | |
9743 | HOST_WIDE_INT ct = INTVAL (operands[2]); | |
9744 | HOST_WIDE_INT cf = INTVAL (operands[3]); | |
9745 | HOST_WIDE_INT diff; | |
9746 | ||
4977bab6 ZW |
9747 | diff = ct - cf; |
9748 | /* Sign bit compares are better done using shifts than we do by using | |
b96a374d | 9749 | sbb. */ |
4977bab6 ZW |
9750 | if (sign_bit_compare_p |
9751 | || ix86_expand_carry_flag_compare (code, ix86_compare_op0, | |
9752 | ix86_compare_op1, &compare_op)) | |
e075ae69 | 9753 | { |
e075ae69 RH |
9754 | /* Detect overlap between destination and compare sources. */ |
9755 | rtx tmp = out; | |
9756 | ||
4977bab6 | 9757 | if (!sign_bit_compare_p) |
36583fea | 9758 | { |
e6e81735 JH |
9759 | bool fpcmp = false; |
9760 | ||
4977bab6 ZW |
9761 | compare_code = GET_CODE (compare_op); |
9762 | ||
e6e81735 JH |
9763 | if (GET_MODE (XEXP (compare_op, 0)) == CCFPmode |
9764 | || GET_MODE (XEXP (compare_op, 0)) == CCFPUmode) | |
9765 | { | |
9766 | fpcmp = true; | |
9767 | compare_code = ix86_fp_compare_code_to_integer (compare_code); | |
9768 | } | |
9769 | ||
4977bab6 ZW |
9770 | /* To simplify rest of code, restrict to the GEU case. */ |
9771 | if (compare_code == LTU) | |
9772 | { | |
9773 | HOST_WIDE_INT tmp = ct; | |
9774 | ct = cf; | |
9775 | cf = tmp; | |
9776 | compare_code = reverse_condition (compare_code); | |
9777 | code = reverse_condition (code); | |
9778 | } | |
e6e81735 JH |
9779 | else |
9780 | { | |
9781 | if (fpcmp) | |
9782 | PUT_CODE (compare_op, | |
9783 | reverse_condition_maybe_unordered | |
9784 | (GET_CODE (compare_op))); | |
9785 | else | |
9786 | PUT_CODE (compare_op, reverse_condition (GET_CODE (compare_op))); | |
9787 | } | |
4977bab6 | 9788 | diff = ct - cf; |
36583fea | 9789 | |
4977bab6 ZW |
9790 | if (reg_overlap_mentioned_p (out, ix86_compare_op0) |
9791 | || reg_overlap_mentioned_p (out, ix86_compare_op1)) | |
9792 | tmp = gen_reg_rtx (mode); | |
e075ae69 | 9793 | |
4977bab6 | 9794 | if (mode == DImode) |
e6e81735 | 9795 | emit_insn (gen_x86_movdicc_0_m1_rex64 (tmp, compare_op)); |
4977bab6 | 9796 | else |
e6e81735 | 9797 | emit_insn (gen_x86_movsicc_0_m1 (gen_lowpart (SImode, tmp), compare_op)); |
4977bab6 | 9798 | } |
14f73b5a | 9799 | else |
4977bab6 ZW |
9800 | { |
9801 | if (code == GT || code == GE) | |
9802 | code = reverse_condition (code); | |
9803 | else | |
9804 | { | |
9805 | HOST_WIDE_INT tmp = ct; | |
9806 | ct = cf; | |
9807 | cf = tmp; | |
5fb48685 | 9808 | diff = ct - cf; |
4977bab6 ZW |
9809 | } |
9810 | tmp = emit_store_flag (tmp, code, ix86_compare_op0, | |
9811 | ix86_compare_op1, VOIDmode, 0, -1); | |
9812 | } | |
e075ae69 | 9813 | |
36583fea JH |
9814 | if (diff == 1) |
9815 | { | |
9816 | /* | |
9817 | * cmpl op0,op1 | |
9818 | * sbbl dest,dest | |
9819 | * [addl dest, ct] | |
9820 | * | |
9821 | * Size 5 - 8. | |
9822 | */ | |
9823 | if (ct) | |
b96a374d | 9824 | tmp = expand_simple_binop (mode, PLUS, |
635559ab | 9825 | tmp, GEN_INT (ct), |
4977bab6 | 9826 | copy_rtx (tmp), 1, OPTAB_DIRECT); |
36583fea JH |
9827 | } |
9828 | else if (cf == -1) | |
9829 | { | |
9830 | /* | |
9831 | * cmpl op0,op1 | |
9832 | * sbbl dest,dest | |
9833 | * orl $ct, dest | |
9834 | * | |
9835 | * Size 8. | |
9836 | */ | |
635559ab JH |
9837 | tmp = expand_simple_binop (mode, IOR, |
9838 | tmp, GEN_INT (ct), | |
4977bab6 | 9839 | copy_rtx (tmp), 1, OPTAB_DIRECT); |
36583fea JH |
9840 | } |
9841 | else if (diff == -1 && ct) | |
9842 | { | |
9843 | /* | |
9844 | * cmpl op0,op1 | |
9845 | * sbbl dest,dest | |
06ec023f | 9846 | * notl dest |
36583fea JH |
9847 | * [addl dest, cf] |
9848 | * | |
9849 | * Size 8 - 11. | |
9850 | */ | |
4977bab6 | 9851 | tmp = expand_simple_unop (mode, NOT, tmp, copy_rtx (tmp), 1); |
635559ab | 9852 | if (cf) |
b96a374d | 9853 | tmp = expand_simple_binop (mode, PLUS, |
4977bab6 ZW |
9854 | copy_rtx (tmp), GEN_INT (cf), |
9855 | copy_rtx (tmp), 1, OPTAB_DIRECT); | |
36583fea JH |
9856 | } |
9857 | else | |
9858 | { | |
9859 | /* | |
9860 | * cmpl op0,op1 | |
9861 | * sbbl dest,dest | |
06ec023f | 9862 | * [notl dest] |
36583fea JH |
9863 | * andl cf - ct, dest |
9864 | * [addl dest, ct] | |
9865 | * | |
9866 | * Size 8 - 11. | |
9867 | */ | |
06ec023f RB |
9868 | |
9869 | if (cf == 0) | |
9870 | { | |
9871 | cf = ct; | |
9872 | ct = 0; | |
4977bab6 | 9873 | tmp = expand_simple_unop (mode, NOT, tmp, copy_rtx (tmp), 1); |
06ec023f RB |
9874 | } |
9875 | ||
635559ab | 9876 | tmp = expand_simple_binop (mode, AND, |
4977bab6 | 9877 | copy_rtx (tmp), |
d8bf17f9 | 9878 | gen_int_mode (cf - ct, mode), |
4977bab6 | 9879 | copy_rtx (tmp), 1, OPTAB_DIRECT); |
635559ab | 9880 | if (ct) |
b96a374d | 9881 | tmp = expand_simple_binop (mode, PLUS, |
4977bab6 ZW |
9882 | copy_rtx (tmp), GEN_INT (ct), |
9883 | copy_rtx (tmp), 1, OPTAB_DIRECT); | |
36583fea | 9884 | } |
e075ae69 | 9885 | |
4977bab6 ZW |
9886 | if (!rtx_equal_p (tmp, out)) |
9887 | emit_move_insn (copy_rtx (out), copy_rtx (tmp)); | |
e075ae69 RH |
9888 | |
9889 | return 1; /* DONE */ | |
9890 | } | |
9891 | ||
e075ae69 RH |
9892 | if (diff < 0) |
9893 | { | |
9894 | HOST_WIDE_INT tmp; | |
9895 | tmp = ct, ct = cf, cf = tmp; | |
9896 | diff = -diff; | |
734dba19 JH |
9897 | if (FLOAT_MODE_P (GET_MODE (ix86_compare_op0))) |
9898 | { | |
9899 | /* We may be reversing unordered compare to normal compare, that | |
9900 | is not valid in general (we may convert non-trapping condition | |
9901 | to trapping one), however on i386 we currently emit all | |
9902 | comparisons unordered. */ | |
9903 | compare_code = reverse_condition_maybe_unordered (compare_code); | |
9904 | code = reverse_condition_maybe_unordered (code); | |
9905 | } | |
9906 | else | |
9907 | { | |
9908 | compare_code = reverse_condition (compare_code); | |
9909 | code = reverse_condition (code); | |
9910 | } | |
e075ae69 | 9911 | } |
0f2a3457 JJ |
9912 | |
9913 | compare_code = NIL; | |
9914 | if (GET_MODE_CLASS (GET_MODE (ix86_compare_op0)) == MODE_INT | |
9915 | && GET_CODE (ix86_compare_op1) == CONST_INT) | |
9916 | { | |
9917 | if (ix86_compare_op1 == const0_rtx | |
9918 | && (code == LT || code == GE)) | |
9919 | compare_code = code; | |
9920 | else if (ix86_compare_op1 == constm1_rtx) | |
9921 | { | |
9922 | if (code == LE) | |
9923 | compare_code = LT; | |
9924 | else if (code == GT) | |
9925 | compare_code = GE; | |
9926 | } | |
9927 | } | |
9928 | ||
9929 | /* Optimize dest = (op0 < 0) ? -1 : cf. */ | |
9930 | if (compare_code != NIL | |
9931 | && GET_MODE (ix86_compare_op0) == GET_MODE (out) | |
9932 | && (cf == -1 || ct == -1)) | |
9933 | { | |
9934 | /* If lea code below could be used, only optimize | |
9935 | if it results in a 2 insn sequence. */ | |
9936 | ||
9937 | if (! (diff == 1 || diff == 2 || diff == 4 || diff == 8 | |
9938 | || diff == 3 || diff == 5 || diff == 9) | |
9939 | || (compare_code == LT && ct == -1) | |
9940 | || (compare_code == GE && cf == -1)) | |
9941 | { | |
9942 | /* | |
9943 | * notl op1 (if necessary) | |
9944 | * sarl $31, op1 | |
9945 | * orl cf, op1 | |
9946 | */ | |
9947 | if (ct != -1) | |
9948 | { | |
9949 | cf = ct; | |
b96a374d | 9950 | ct = -1; |
0f2a3457 JJ |
9951 | code = reverse_condition (code); |
9952 | } | |
9953 | ||
9954 | out = emit_store_flag (out, code, ix86_compare_op0, | |
9955 | ix86_compare_op1, VOIDmode, 0, -1); | |
9956 | ||
9957 | out = expand_simple_binop (mode, IOR, | |
9958 | out, GEN_INT (cf), | |
9959 | out, 1, OPTAB_DIRECT); | |
9960 | if (out != operands[0]) | |
9961 | emit_move_insn (operands[0], out); | |
9962 | ||
9963 | return 1; /* DONE */ | |
9964 | } | |
9965 | } | |
9966 | ||
4977bab6 | 9967 | |
635559ab JH |
9968 | if ((diff == 1 || diff == 2 || diff == 4 || diff == 8 |
9969 | || diff == 3 || diff == 5 || diff == 9) | |
4977bab6 | 9970 | && ((mode != QImode && mode != HImode) || !TARGET_PARTIAL_REG_STALL) |
c05dbe81 | 9971 | && (mode != DImode || x86_64_sign_extended_value (GEN_INT (cf)))) |
e075ae69 RH |
9972 | { |
9973 | /* | |
9974 | * xorl dest,dest | |
9975 | * cmpl op1,op2 | |
9976 | * setcc dest | |
9977 | * lea cf(dest*(ct-cf)),dest | |
9978 | * | |
9979 | * Size 14. | |
9980 | * | |
9981 | * This also catches the degenerate setcc-only case. | |
9982 | */ | |
9983 | ||
9984 | rtx tmp; | |
9985 | int nops; | |
9986 | ||
9987 | out = emit_store_flag (out, code, ix86_compare_op0, | |
9988 | ix86_compare_op1, VOIDmode, 0, 1); | |
9989 | ||
9990 | nops = 0; | |
97f51ac4 RB |
9991 | /* On x86_64 the lea instruction operates on Pmode, so we need |
9992 | to get arithmetics done in proper mode to match. */ | |
e075ae69 | 9993 | if (diff == 1) |
068f5dea | 9994 | tmp = copy_rtx (out); |
e075ae69 RH |
9995 | else |
9996 | { | |
885a70fd | 9997 | rtx out1; |
068f5dea | 9998 | out1 = copy_rtx (out); |
635559ab | 9999 | tmp = gen_rtx_MULT (mode, out1, GEN_INT (diff & ~1)); |
e075ae69 RH |
10000 | nops++; |
10001 | if (diff & 1) | |
10002 | { | |
635559ab | 10003 | tmp = gen_rtx_PLUS (mode, tmp, out1); |
e075ae69 RH |
10004 | nops++; |
10005 | } | |
10006 | } | |
10007 | if (cf != 0) | |
10008 | { | |
635559ab | 10009 | tmp = gen_rtx_PLUS (mode, tmp, GEN_INT (cf)); |
e075ae69 RH |
10010 | nops++; |
10011 | } | |
4977bab6 | 10012 | if (!rtx_equal_p (tmp, out)) |
e075ae69 | 10013 | { |
14f73b5a | 10014 | if (nops == 1) |
a5cf80f0 | 10015 | out = force_operand (tmp, copy_rtx (out)); |
e075ae69 | 10016 | else |
4977bab6 | 10017 | emit_insn (gen_rtx_SET (VOIDmode, copy_rtx (out), copy_rtx (tmp))); |
e075ae69 | 10018 | } |
4977bab6 | 10019 | if (!rtx_equal_p (out, operands[0])) |
1985ef90 | 10020 | emit_move_insn (operands[0], copy_rtx (out)); |
e075ae69 RH |
10021 | |
10022 | return 1; /* DONE */ | |
10023 | } | |
10024 | ||
10025 | /* | |
10026 | * General case: Jumpful: | |
10027 | * xorl dest,dest cmpl op1, op2 | |
10028 | * cmpl op1, op2 movl ct, dest | |
10029 | * setcc dest jcc 1f | |
10030 | * decl dest movl cf, dest | |
10031 | * andl (cf-ct),dest 1: | |
10032 | * addl ct,dest | |
0f290768 | 10033 | * |
e075ae69 RH |
10034 | * Size 20. Size 14. |
10035 | * | |
10036 | * This is reasonably steep, but branch mispredict costs are | |
10037 | * high on modern cpus, so consider failing only if optimizing | |
10038 | * for space. | |
e075ae69 RH |
10039 | */ |
10040 | ||
4977bab6 ZW |
10041 | if ((!TARGET_CMOVE || (mode == QImode && TARGET_PARTIAL_REG_STALL)) |
10042 | && BRANCH_COST >= 2) | |
e075ae69 | 10043 | { |
97f51ac4 | 10044 | if (cf == 0) |
e075ae69 | 10045 | { |
97f51ac4 RB |
10046 | cf = ct; |
10047 | ct = 0; | |
734dba19 | 10048 | if (FLOAT_MODE_P (GET_MODE (ix86_compare_op0))) |
0f2a3457 JJ |
10049 | /* We may be reversing unordered compare to normal compare, |
10050 | that is not valid in general (we may convert non-trapping | |
10051 | condition to trapping one), however on i386 we currently | |
10052 | emit all comparisons unordered. */ | |
10053 | code = reverse_condition_maybe_unordered (code); | |
10054 | else | |
10055 | { | |
10056 | code = reverse_condition (code); | |
10057 | if (compare_code != NIL) | |
10058 | compare_code = reverse_condition (compare_code); | |
10059 | } | |
10060 | } | |
10061 | ||
10062 | if (compare_code != NIL) | |
10063 | { | |
10064 | /* notl op1 (if needed) | |
10065 | sarl $31, op1 | |
10066 | andl (cf-ct), op1 | |
b96a374d | 10067 | addl ct, op1 |
0f2a3457 JJ |
10068 | |
10069 | For x < 0 (resp. x <= -1) there will be no notl, | |
10070 | so if possible swap the constants to get rid of the | |
10071 | complement. | |
10072 | True/false will be -1/0 while code below (store flag | |
10073 | followed by decrement) is 0/-1, so the constants need | |
10074 | to be exchanged once more. */ | |
10075 | ||
10076 | if (compare_code == GE || !cf) | |
734dba19 | 10077 | { |
b96a374d | 10078 | code = reverse_condition (code); |
0f2a3457 | 10079 | compare_code = LT; |
734dba19 JH |
10080 | } |
10081 | else | |
10082 | { | |
0f2a3457 | 10083 | HOST_WIDE_INT tmp = cf; |
b96a374d | 10084 | cf = ct; |
0f2a3457 | 10085 | ct = tmp; |
734dba19 | 10086 | } |
0f2a3457 JJ |
10087 | |
10088 | out = emit_store_flag (out, code, ix86_compare_op0, | |
10089 | ix86_compare_op1, VOIDmode, 0, -1); | |
e075ae69 | 10090 | } |
0f2a3457 JJ |
10091 | else |
10092 | { | |
10093 | out = emit_store_flag (out, code, ix86_compare_op0, | |
10094 | ix86_compare_op1, VOIDmode, 0, 1); | |
e075ae69 | 10095 | |
4977bab6 ZW |
10096 | out = expand_simple_binop (mode, PLUS, copy_rtx (out), constm1_rtx, |
10097 | copy_rtx (out), 1, OPTAB_DIRECT); | |
0f2a3457 | 10098 | } |
e075ae69 | 10099 | |
4977bab6 | 10100 | out = expand_simple_binop (mode, AND, copy_rtx (out), |
d8bf17f9 | 10101 | gen_int_mode (cf - ct, mode), |
4977bab6 | 10102 | copy_rtx (out), 1, OPTAB_DIRECT); |
97f51ac4 | 10103 | if (ct) |
4977bab6 ZW |
10104 | out = expand_simple_binop (mode, PLUS, copy_rtx (out), GEN_INT (ct), |
10105 | copy_rtx (out), 1, OPTAB_DIRECT); | |
10106 | if (!rtx_equal_p (out, operands[0])) | |
10107 | emit_move_insn (operands[0], copy_rtx (out)); | |
e075ae69 RH |
10108 | |
10109 | return 1; /* DONE */ | |
10110 | } | |
10111 | } | |
10112 | ||
4977bab6 | 10113 | if (!TARGET_CMOVE || (mode == QImode && TARGET_PARTIAL_REG_STALL)) |
e075ae69 RH |
10114 | { |
10115 | /* Try a few things more with specific constants and a variable. */ | |
10116 | ||
78a0d70c | 10117 | optab op; |
e075ae69 RH |
10118 | rtx var, orig_out, out, tmp; |
10119 | ||
4977bab6 | 10120 | if (BRANCH_COST <= 2) |
e075ae69 RH |
10121 | return 0; /* FAIL */ |
10122 | ||
0f290768 | 10123 | /* If one of the two operands is an interesting constant, load a |
e075ae69 | 10124 | constant with the above and mask it in with a logical operation. */ |
0f290768 | 10125 | |
e075ae69 RH |
10126 | if (GET_CODE (operands[2]) == CONST_INT) |
10127 | { | |
10128 | var = operands[3]; | |
4977bab6 | 10129 | if (INTVAL (operands[2]) == 0 && operands[3] != constm1_rtx) |
e075ae69 | 10130 | operands[3] = constm1_rtx, op = and_optab; |
4977bab6 | 10131 | else if (INTVAL (operands[2]) == -1 && operands[3] != const0_rtx) |
e075ae69 | 10132 | operands[3] = const0_rtx, op = ior_optab; |
78a0d70c ZW |
10133 | else |
10134 | return 0; /* FAIL */ | |
e075ae69 RH |
10135 | } |
10136 | else if (GET_CODE (operands[3]) == CONST_INT) | |
10137 | { | |
10138 | var = operands[2]; | |
4977bab6 | 10139 | if (INTVAL (operands[3]) == 0 && operands[2] != constm1_rtx) |
e075ae69 | 10140 | operands[2] = constm1_rtx, op = and_optab; |
4977bab6 | 10141 | else if (INTVAL (operands[3]) == -1 && operands[3] != const0_rtx) |
e075ae69 | 10142 | operands[2] = const0_rtx, op = ior_optab; |
78a0d70c ZW |
10143 | else |
10144 | return 0; /* FAIL */ | |
e075ae69 | 10145 | } |
78a0d70c | 10146 | else |
e075ae69 RH |
10147 | return 0; /* FAIL */ |
10148 | ||
10149 | orig_out = operands[0]; | |
635559ab | 10150 | tmp = gen_reg_rtx (mode); |
e075ae69 RH |
10151 | operands[0] = tmp; |
10152 | ||
10153 | /* Recurse to get the constant loaded. */ | |
10154 | if (ix86_expand_int_movcc (operands) == 0) | |
10155 | return 0; /* FAIL */ | |
10156 | ||
10157 | /* Mask in the interesting variable. */ | |
635559ab | 10158 | out = expand_binop (mode, op, var, tmp, orig_out, 0, |
e075ae69 | 10159 | OPTAB_WIDEN); |
4977bab6 ZW |
10160 | if (!rtx_equal_p (out, orig_out)) |
10161 | emit_move_insn (copy_rtx (orig_out), copy_rtx (out)); | |
e075ae69 RH |
10162 | |
10163 | return 1; /* DONE */ | |
10164 | } | |
10165 | ||
10166 | /* | |
10167 | * For comparison with above, | |
10168 | * | |
10169 | * movl cf,dest | |
10170 | * movl ct,tmp | |
10171 | * cmpl op1,op2 | |
10172 | * cmovcc tmp,dest | |
10173 | * | |
10174 | * Size 15. | |
10175 | */ | |
10176 | ||
635559ab JH |
10177 | if (! nonimmediate_operand (operands[2], mode)) |
10178 | operands[2] = force_reg (mode, operands[2]); | |
10179 | if (! nonimmediate_operand (operands[3], mode)) | |
10180 | operands[3] = force_reg (mode, operands[3]); | |
e075ae69 | 10181 | |
a1b8572c JH |
10182 | if (bypass_test && reg_overlap_mentioned_p (operands[0], operands[3])) |
10183 | { | |
635559ab | 10184 | rtx tmp = gen_reg_rtx (mode); |
a1b8572c JH |
10185 | emit_move_insn (tmp, operands[3]); |
10186 | operands[3] = tmp; | |
10187 | } | |
10188 | if (second_test && reg_overlap_mentioned_p (operands[0], operands[2])) | |
10189 | { | |
635559ab | 10190 | rtx tmp = gen_reg_rtx (mode); |
a1b8572c JH |
10191 | emit_move_insn (tmp, operands[2]); |
10192 | operands[2] = tmp; | |
10193 | } | |
4977bab6 | 10194 | |
c9682caf | 10195 | if (! register_operand (operands[2], VOIDmode) |
b96a374d | 10196 | && (mode == QImode |
4977bab6 | 10197 | || ! register_operand (operands[3], VOIDmode))) |
635559ab | 10198 | operands[2] = force_reg (mode, operands[2]); |
a1b8572c | 10199 | |
4977bab6 ZW |
10200 | if (mode == QImode |
10201 | && ! register_operand (operands[3], VOIDmode)) | |
10202 | operands[3] = force_reg (mode, operands[3]); | |
10203 | ||
e075ae69 RH |
10204 | emit_insn (compare_seq); |
10205 | emit_insn (gen_rtx_SET (VOIDmode, operands[0], | |
635559ab | 10206 | gen_rtx_IF_THEN_ELSE (mode, |
e075ae69 RH |
10207 | compare_op, operands[2], |
10208 | operands[3]))); | |
a1b8572c | 10209 | if (bypass_test) |
4977bab6 | 10210 | emit_insn (gen_rtx_SET (VOIDmode, copy_rtx (operands[0]), |
635559ab | 10211 | gen_rtx_IF_THEN_ELSE (mode, |
a1b8572c | 10212 | bypass_test, |
4977bab6 ZW |
10213 | copy_rtx (operands[3]), |
10214 | copy_rtx (operands[0])))); | |
a1b8572c | 10215 | if (second_test) |
4977bab6 | 10216 | emit_insn (gen_rtx_SET (VOIDmode, copy_rtx (operands[0]), |
635559ab | 10217 | gen_rtx_IF_THEN_ELSE (mode, |
a1b8572c | 10218 | second_test, |
4977bab6 ZW |
10219 | copy_rtx (operands[2]), |
10220 | copy_rtx (operands[0])))); | |
e075ae69 RH |
10221 | |
10222 | return 1; /* DONE */ | |
e9a25f70 | 10223 | } |
e075ae69 | 10224 | |
32b5b1aa | 10225 | int |
b96a374d | 10226 | ix86_expand_fp_movcc (rtx operands[]) |
32b5b1aa | 10227 | { |
e075ae69 | 10228 | enum rtx_code code; |
e075ae69 | 10229 | rtx tmp; |
a1b8572c | 10230 | rtx compare_op, second_test, bypass_test; |
32b5b1aa | 10231 | |
0073023d JH |
10232 | /* For SF/DFmode conditional moves based on comparisons |
10233 | in same mode, we may want to use SSE min/max instructions. */ | |
965f5423 JH |
10234 | if (((TARGET_SSE_MATH && GET_MODE (operands[0]) == SFmode) |
10235 | || (TARGET_SSE2 && TARGET_SSE_MATH && GET_MODE (operands[0]) == DFmode)) | |
0073023d | 10236 | && GET_MODE (ix86_compare_op0) == GET_MODE (operands[0]) |
fa9f36a1 JH |
10237 | /* The SSE comparisons does not support the LTGT/UNEQ pair. */ |
10238 | && (!TARGET_IEEE_FP | |
10239 | || (GET_CODE (operands[1]) != LTGT && GET_CODE (operands[1]) != UNEQ)) | |
0073023d JH |
10240 | /* We may be called from the post-reload splitter. */ |
10241 | && (!REG_P (operands[0]) | |
10242 | || SSE_REG_P (operands[0]) | |
52a661a6 | 10243 | || REGNO (operands[0]) >= FIRST_PSEUDO_REGISTER)) |
0073023d JH |
10244 | { |
10245 | rtx op0 = ix86_compare_op0, op1 = ix86_compare_op1; | |
10246 | code = GET_CODE (operands[1]); | |
10247 | ||
10248 | /* See if we have (cross) match between comparison operands and | |
10249 | conditional move operands. */ | |
10250 | if (rtx_equal_p (operands[2], op1)) | |
10251 | { | |
10252 | rtx tmp = op0; | |
10253 | op0 = op1; | |
10254 | op1 = tmp; | |
10255 | code = reverse_condition_maybe_unordered (code); | |
10256 | } | |
10257 | if (rtx_equal_p (operands[2], op0) && rtx_equal_p (operands[3], op1)) | |
10258 | { | |
10259 | /* Check for min operation. */ | |
4977bab6 | 10260 | if (code == LT || code == UNLE) |
0073023d | 10261 | { |
4977bab6 ZW |
10262 | if (code == UNLE) |
10263 | { | |
10264 | rtx tmp = op0; | |
10265 | op0 = op1; | |
10266 | op1 = tmp; | |
10267 | } | |
0073023d JH |
10268 | operands[0] = force_reg (GET_MODE (operands[0]), operands[0]); |
10269 | if (memory_operand (op0, VOIDmode)) | |
10270 | op0 = force_reg (GET_MODE (operands[0]), op0); | |
10271 | if (GET_MODE (operands[0]) == SFmode) | |
10272 | emit_insn (gen_minsf3 (operands[0], op0, op1)); | |
10273 | else | |
10274 | emit_insn (gen_mindf3 (operands[0], op0, op1)); | |
10275 | return 1; | |
10276 | } | |
10277 | /* Check for max operation. */ | |
4977bab6 | 10278 | if (code == GT || code == UNGE) |
0073023d | 10279 | { |
4977bab6 ZW |
10280 | if (code == UNGE) |
10281 | { | |
10282 | rtx tmp = op0; | |
10283 | op0 = op1; | |
10284 | op1 = tmp; | |
10285 | } | |
0073023d JH |
10286 | operands[0] = force_reg (GET_MODE (operands[0]), operands[0]); |
10287 | if (memory_operand (op0, VOIDmode)) | |
10288 | op0 = force_reg (GET_MODE (operands[0]), op0); | |
10289 | if (GET_MODE (operands[0]) == SFmode) | |
10290 | emit_insn (gen_maxsf3 (operands[0], op0, op1)); | |
10291 | else | |
10292 | emit_insn (gen_maxdf3 (operands[0], op0, op1)); | |
10293 | return 1; | |
10294 | } | |
10295 | } | |
10296 | /* Manage condition to be sse_comparison_operator. In case we are | |
10297 | in non-ieee mode, try to canonicalize the destination operand | |
10298 | to be first in the comparison - this helps reload to avoid extra | |
10299 | moves. */ | |
10300 | if (!sse_comparison_operator (operands[1], VOIDmode) | |
10301 | || (rtx_equal_p (operands[0], ix86_compare_op1) && !TARGET_IEEE_FP)) | |
10302 | { | |
10303 | rtx tmp = ix86_compare_op0; | |
10304 | ix86_compare_op0 = ix86_compare_op1; | |
10305 | ix86_compare_op1 = tmp; | |
10306 | operands[1] = gen_rtx_fmt_ee (swap_condition (GET_CODE (operands[1])), | |
10307 | VOIDmode, ix86_compare_op0, | |
10308 | ix86_compare_op1); | |
10309 | } | |
d1f87653 | 10310 | /* Similarly try to manage result to be first operand of conditional |
fa9f36a1 JH |
10311 | move. We also don't support the NE comparison on SSE, so try to |
10312 | avoid it. */ | |
037f20f1 JH |
10313 | if ((rtx_equal_p (operands[0], operands[3]) |
10314 | && (!TARGET_IEEE_FP || GET_CODE (operands[1]) != EQ)) | |
10315 | || (GET_CODE (operands[1]) == NE && TARGET_IEEE_FP)) | |
0073023d JH |
10316 | { |
10317 | rtx tmp = operands[2]; | |
10318 | operands[2] = operands[3]; | |
92d0fb09 | 10319 | operands[3] = tmp; |
0073023d JH |
10320 | operands[1] = gen_rtx_fmt_ee (reverse_condition_maybe_unordered |
10321 | (GET_CODE (operands[1])), | |
10322 | VOIDmode, ix86_compare_op0, | |
10323 | ix86_compare_op1); | |
10324 | } | |
10325 | if (GET_MODE (operands[0]) == SFmode) | |
10326 | emit_insn (gen_sse_movsfcc (operands[0], operands[1], | |
10327 | operands[2], operands[3], | |
10328 | ix86_compare_op0, ix86_compare_op1)); | |
10329 | else | |
10330 | emit_insn (gen_sse_movdfcc (operands[0], operands[1], | |
10331 | operands[2], operands[3], | |
10332 | ix86_compare_op0, ix86_compare_op1)); | |
10333 | return 1; | |
10334 | } | |
10335 | ||
e075ae69 | 10336 | /* The floating point conditional move instructions don't directly |
0f290768 | 10337 | support conditions resulting from a signed integer comparison. */ |
32b5b1aa | 10338 | |
e075ae69 | 10339 | code = GET_CODE (operands[1]); |
a1b8572c | 10340 | compare_op = ix86_expand_compare (code, &second_test, &bypass_test); |
9e7adcb3 JH |
10341 | |
10342 | /* The floating point conditional move instructions don't directly | |
10343 | support signed integer comparisons. */ | |
10344 | ||
a1b8572c | 10345 | if (!fcmov_comparison_operator (compare_op, VOIDmode)) |
e075ae69 | 10346 | { |
a1b8572c | 10347 | if (second_test != NULL || bypass_test != NULL) |
b531087a | 10348 | abort (); |
e075ae69 | 10349 | tmp = gen_reg_rtx (QImode); |
3a3677ff | 10350 | ix86_expand_setcc (code, tmp); |
e075ae69 RH |
10351 | code = NE; |
10352 | ix86_compare_op0 = tmp; | |
10353 | ix86_compare_op1 = const0_rtx; | |
a1b8572c JH |
10354 | compare_op = ix86_expand_compare (code, &second_test, &bypass_test); |
10355 | } | |
10356 | if (bypass_test && reg_overlap_mentioned_p (operands[0], operands[3])) | |
10357 | { | |
10358 | tmp = gen_reg_rtx (GET_MODE (operands[0])); | |
10359 | emit_move_insn (tmp, operands[3]); | |
10360 | operands[3] = tmp; | |
10361 | } | |
10362 | if (second_test && reg_overlap_mentioned_p (operands[0], operands[2])) | |
10363 | { | |
10364 | tmp = gen_reg_rtx (GET_MODE (operands[0])); | |
10365 | emit_move_insn (tmp, operands[2]); | |
10366 | operands[2] = tmp; | |
e075ae69 | 10367 | } |
e9a25f70 | 10368 | |
e075ae69 RH |
10369 | emit_insn (gen_rtx_SET (VOIDmode, operands[0], |
10370 | gen_rtx_IF_THEN_ELSE (GET_MODE (operands[0]), | |
9e7adcb3 | 10371 | compare_op, |
e075ae69 RH |
10372 | operands[2], |
10373 | operands[3]))); | |
a1b8572c JH |
10374 | if (bypass_test) |
10375 | emit_insn (gen_rtx_SET (VOIDmode, operands[0], | |
10376 | gen_rtx_IF_THEN_ELSE (GET_MODE (operands[0]), | |
10377 | bypass_test, | |
10378 | operands[3], | |
10379 | operands[0]))); | |
10380 | if (second_test) | |
10381 | emit_insn (gen_rtx_SET (VOIDmode, operands[0], | |
10382 | gen_rtx_IF_THEN_ELSE (GET_MODE (operands[0]), | |
10383 | second_test, | |
10384 | operands[2], | |
10385 | operands[0]))); | |
32b5b1aa | 10386 | |
e075ae69 | 10387 | return 1; |
32b5b1aa SC |
10388 | } |
10389 | ||
7b52eede JH |
10390 | /* Expand conditional increment or decrement using adb/sbb instructions. |
10391 | The default case using setcc followed by the conditional move can be | |
10392 | done by generic code. */ | |
10393 | int | |
b96a374d | 10394 | ix86_expand_int_addcc (rtx operands[]) |
7b52eede JH |
10395 | { |
10396 | enum rtx_code code = GET_CODE (operands[1]); | |
10397 | rtx compare_op; | |
10398 | rtx val = const0_rtx; | |
e6e81735 | 10399 | bool fpcmp = false; |
e6e81735 | 10400 | enum machine_mode mode = GET_MODE (operands[0]); |
7b52eede JH |
10401 | |
10402 | if (operands[3] != const1_rtx | |
10403 | && operands[3] != constm1_rtx) | |
10404 | return 0; | |
10405 | if (!ix86_expand_carry_flag_compare (code, ix86_compare_op0, | |
10406 | ix86_compare_op1, &compare_op)) | |
10407 | return 0; | |
e6e81735 JH |
10408 | code = GET_CODE (compare_op); |
10409 | ||
10410 | if (GET_MODE (XEXP (compare_op, 0)) == CCFPmode | |
10411 | || GET_MODE (XEXP (compare_op, 0)) == CCFPUmode) | |
10412 | { | |
10413 | fpcmp = true; | |
10414 | code = ix86_fp_compare_code_to_integer (code); | |
10415 | } | |
10416 | ||
10417 | if (code != LTU) | |
10418 | { | |
10419 | val = constm1_rtx; | |
10420 | if (fpcmp) | |
10421 | PUT_CODE (compare_op, | |
10422 | reverse_condition_maybe_unordered | |
10423 | (GET_CODE (compare_op))); | |
10424 | else | |
10425 | PUT_CODE (compare_op, reverse_condition (GET_CODE (compare_op))); | |
10426 | } | |
10427 | PUT_MODE (compare_op, mode); | |
10428 | ||
10429 | /* Construct either adc or sbb insn. */ | |
10430 | if ((code == LTU) == (operands[3] == constm1_rtx)) | |
7b52eede JH |
10431 | { |
10432 | switch (GET_MODE (operands[0])) | |
10433 | { | |
10434 | case QImode: | |
e6e81735 | 10435 | emit_insn (gen_subqi3_carry (operands[0], operands[2], val, compare_op)); |
7b52eede JH |
10436 | break; |
10437 | case HImode: | |
e6e81735 | 10438 | emit_insn (gen_subhi3_carry (operands[0], operands[2], val, compare_op)); |
7b52eede JH |
10439 | break; |
10440 | case SImode: | |
e6e81735 | 10441 | emit_insn (gen_subsi3_carry (operands[0], operands[2], val, compare_op)); |
7b52eede JH |
10442 | break; |
10443 | case DImode: | |
e6e81735 | 10444 | emit_insn (gen_subdi3_carry_rex64 (operands[0], operands[2], val, compare_op)); |
7b52eede JH |
10445 | break; |
10446 | default: | |
10447 | abort (); | |
10448 | } | |
10449 | } | |
10450 | else | |
10451 | { | |
10452 | switch (GET_MODE (operands[0])) | |
10453 | { | |
10454 | case QImode: | |
e6e81735 | 10455 | emit_insn (gen_addqi3_carry (operands[0], operands[2], val, compare_op)); |
7b52eede JH |
10456 | break; |
10457 | case HImode: | |
e6e81735 | 10458 | emit_insn (gen_addhi3_carry (operands[0], operands[2], val, compare_op)); |
7b52eede JH |
10459 | break; |
10460 | case SImode: | |
e6e81735 | 10461 | emit_insn (gen_addsi3_carry (operands[0], operands[2], val, compare_op)); |
7b52eede JH |
10462 | break; |
10463 | case DImode: | |
e6e81735 | 10464 | emit_insn (gen_adddi3_carry_rex64 (operands[0], operands[2], val, compare_op)); |
7b52eede JH |
10465 | break; |
10466 | default: | |
10467 | abort (); | |
10468 | } | |
10469 | } | |
10470 | return 1; /* DONE */ | |
10471 | } | |
10472 | ||
10473 | ||
2450a057 JH |
10474 | /* Split operands 0 and 1 into SImode parts. Similar to split_di, but |
10475 | works for floating pointer parameters and nonoffsetable memories. | |
10476 | For pushes, it returns just stack offsets; the values will be saved | |
10477 | in the right order. Maximally three parts are generated. */ | |
10478 | ||
2b589241 | 10479 | static int |
b96a374d | 10480 | ix86_split_to_parts (rtx operand, rtx *parts, enum machine_mode mode) |
32b5b1aa | 10481 | { |
26e5b205 JH |
10482 | int size; |
10483 | ||
10484 | if (!TARGET_64BIT) | |
f8a1ebc6 | 10485 | size = mode==XFmode ? 3 : GET_MODE_SIZE (mode) / 4; |
26e5b205 JH |
10486 | else |
10487 | size = (GET_MODE_SIZE (mode) + 4) / 8; | |
2450a057 | 10488 | |
a7180f70 BS |
10489 | if (GET_CODE (operand) == REG && MMX_REGNO_P (REGNO (operand))) |
10490 | abort (); | |
2450a057 JH |
10491 | if (size < 2 || size > 3) |
10492 | abort (); | |
10493 | ||
f996902d RH |
10494 | /* Optimize constant pool reference to immediates. This is used by fp |
10495 | moves, that force all constants to memory to allow combining. */ | |
10496 | if (GET_CODE (operand) == MEM && RTX_UNCHANGING_P (operand)) | |
10497 | { | |
10498 | rtx tmp = maybe_get_pool_constant (operand); | |
10499 | if (tmp) | |
10500 | operand = tmp; | |
10501 | } | |
d7a29404 | 10502 | |
2450a057 | 10503 | if (GET_CODE (operand) == MEM && !offsettable_memref_p (operand)) |
e075ae69 | 10504 | { |
2450a057 JH |
10505 | /* The only non-offsetable memories we handle are pushes. */ |
10506 | if (! push_operand (operand, VOIDmode)) | |
10507 | abort (); | |
10508 | ||
26e5b205 JH |
10509 | operand = copy_rtx (operand); |
10510 | PUT_MODE (operand, Pmode); | |
2450a057 JH |
10511 | parts[0] = parts[1] = parts[2] = operand; |
10512 | } | |
26e5b205 | 10513 | else if (!TARGET_64BIT) |
2450a057 JH |
10514 | { |
10515 | if (mode == DImode) | |
10516 | split_di (&operand, 1, &parts[0], &parts[1]); | |
10517 | else | |
e075ae69 | 10518 | { |
2450a057 JH |
10519 | if (REG_P (operand)) |
10520 | { | |
10521 | if (!reload_completed) | |
10522 | abort (); | |
10523 | parts[0] = gen_rtx_REG (SImode, REGNO (operand) + 0); | |
10524 | parts[1] = gen_rtx_REG (SImode, REGNO (operand) + 1); | |
10525 | if (size == 3) | |
10526 | parts[2] = gen_rtx_REG (SImode, REGNO (operand) + 2); | |
10527 | } | |
10528 | else if (offsettable_memref_p (operand)) | |
10529 | { | |
f4ef873c | 10530 | operand = adjust_address (operand, SImode, 0); |
2450a057 | 10531 | parts[0] = operand; |
b72f00af | 10532 | parts[1] = adjust_address (operand, SImode, 4); |
2450a057 | 10533 | if (size == 3) |
b72f00af | 10534 | parts[2] = adjust_address (operand, SImode, 8); |
2450a057 JH |
10535 | } |
10536 | else if (GET_CODE (operand) == CONST_DOUBLE) | |
10537 | { | |
10538 | REAL_VALUE_TYPE r; | |
2b589241 | 10539 | long l[4]; |
2450a057 JH |
10540 | |
10541 | REAL_VALUE_FROM_CONST_DOUBLE (r, operand); | |
10542 | switch (mode) | |
10543 | { | |
10544 | case XFmode: | |
10545 | REAL_VALUE_TO_TARGET_LONG_DOUBLE (r, l); | |
d8bf17f9 | 10546 | parts[2] = gen_int_mode (l[2], SImode); |
2450a057 JH |
10547 | break; |
10548 | case DFmode: | |
10549 | REAL_VALUE_TO_TARGET_DOUBLE (r, l); | |
10550 | break; | |
10551 | default: | |
10552 | abort (); | |
10553 | } | |
d8bf17f9 LB |
10554 | parts[1] = gen_int_mode (l[1], SImode); |
10555 | parts[0] = gen_int_mode (l[0], SImode); | |
2450a057 JH |
10556 | } |
10557 | else | |
10558 | abort (); | |
e075ae69 | 10559 | } |
2450a057 | 10560 | } |
26e5b205 JH |
10561 | else |
10562 | { | |
44cf5b6a JH |
10563 | if (mode == TImode) |
10564 | split_ti (&operand, 1, &parts[0], &parts[1]); | |
26e5b205 JH |
10565 | if (mode == XFmode || mode == TFmode) |
10566 | { | |
f8a1ebc6 | 10567 | enum machine_mode upper_mode = mode==XFmode ? SImode : DImode; |
26e5b205 JH |
10568 | if (REG_P (operand)) |
10569 | { | |
10570 | if (!reload_completed) | |
10571 | abort (); | |
10572 | parts[0] = gen_rtx_REG (DImode, REGNO (operand) + 0); | |
f8a1ebc6 | 10573 | parts[1] = gen_rtx_REG (upper_mode, REGNO (operand) + 1); |
26e5b205 JH |
10574 | } |
10575 | else if (offsettable_memref_p (operand)) | |
10576 | { | |
b72f00af | 10577 | operand = adjust_address (operand, DImode, 0); |
26e5b205 | 10578 | parts[0] = operand; |
f8a1ebc6 | 10579 | parts[1] = adjust_address (operand, upper_mode, 8); |
26e5b205 JH |
10580 | } |
10581 | else if (GET_CODE (operand) == CONST_DOUBLE) | |
10582 | { | |
10583 | REAL_VALUE_TYPE r; | |
10584 | long l[3]; | |
10585 | ||
10586 | REAL_VALUE_FROM_CONST_DOUBLE (r, operand); | |
10587 | REAL_VALUE_TO_TARGET_LONG_DOUBLE (r, l); | |
10588 | /* Do not use shift by 32 to avoid warning on 32bit systems. */ | |
10589 | if (HOST_BITS_PER_WIDE_INT >= 64) | |
523fbd9d | 10590 | parts[0] |
d8bf17f9 | 10591 | = gen_int_mode |
44cf5b6a | 10592 | ((l[0] & (((HOST_WIDE_INT) 2 << 31) - 1)) |
b531087a | 10593 | + ((((HOST_WIDE_INT) l[1]) << 31) << 1), |
d8bf17f9 | 10594 | DImode); |
26e5b205 JH |
10595 | else |
10596 | parts[0] = immed_double_const (l[0], l[1], DImode); | |
f8a1ebc6 JH |
10597 | if (upper_mode == SImode) |
10598 | parts[1] = gen_int_mode (l[2], SImode); | |
10599 | else if (HOST_BITS_PER_WIDE_INT >= 64) | |
10600 | parts[1] | |
10601 | = gen_int_mode | |
10602 | ((l[2] & (((HOST_WIDE_INT) 2 << 31) - 1)) | |
10603 | + ((((HOST_WIDE_INT) l[3]) << 31) << 1), | |
10604 | DImode); | |
10605 | else | |
10606 | parts[1] = immed_double_const (l[2], l[3], DImode); | |
26e5b205 JH |
10607 | } |
10608 | else | |
10609 | abort (); | |
10610 | } | |
10611 | } | |
2450a057 | 10612 | |
2b589241 | 10613 | return size; |
2450a057 JH |
10614 | } |
10615 | ||
10616 | /* Emit insns to perform a move or push of DI, DF, and XF values. | |
10617 | Return false when normal moves are needed; true when all required | |
10618 | insns have been emitted. Operands 2-4 contain the input values | |
10619 | int the correct order; operands 5-7 contain the output values. */ | |
10620 | ||
26e5b205 | 10621 | void |
b96a374d | 10622 | ix86_split_long_move (rtx operands[]) |
2450a057 JH |
10623 | { |
10624 | rtx part[2][3]; | |
26e5b205 | 10625 | int nparts; |
2450a057 JH |
10626 | int push = 0; |
10627 | int collisions = 0; | |
26e5b205 JH |
10628 | enum machine_mode mode = GET_MODE (operands[0]); |
10629 | ||
10630 | /* The DFmode expanders may ask us to move double. | |
10631 | For 64bit target this is single move. By hiding the fact | |
10632 | here we simplify i386.md splitters. */ | |
10633 | if (GET_MODE_SIZE (GET_MODE (operands[0])) == 8 && TARGET_64BIT) | |
10634 | { | |
8cdfa312 RH |
10635 | /* Optimize constant pool reference to immediates. This is used by |
10636 | fp moves, that force all constants to memory to allow combining. */ | |
26e5b205 JH |
10637 | |
10638 | if (GET_CODE (operands[1]) == MEM | |
10639 | && GET_CODE (XEXP (operands[1], 0)) == SYMBOL_REF | |
10640 | && CONSTANT_POOL_ADDRESS_P (XEXP (operands[1], 0))) | |
10641 | operands[1] = get_pool_constant (XEXP (operands[1], 0)); | |
10642 | if (push_operand (operands[0], VOIDmode)) | |
b47b4f21 JH |
10643 | { |
10644 | operands[0] = copy_rtx (operands[0]); | |
10645 | PUT_MODE (operands[0], Pmode); | |
10646 | } | |
26e5b205 JH |
10647 | else |
10648 | operands[0] = gen_lowpart (DImode, operands[0]); | |
10649 | operands[1] = gen_lowpart (DImode, operands[1]); | |
10650 | emit_move_insn (operands[0], operands[1]); | |
10651 | return; | |
10652 | } | |
2450a057 | 10653 | |
2450a057 JH |
10654 | /* The only non-offsettable memory we handle is push. */ |
10655 | if (push_operand (operands[0], VOIDmode)) | |
10656 | push = 1; | |
10657 | else if (GET_CODE (operands[0]) == MEM | |
10658 | && ! offsettable_memref_p (operands[0])) | |
10659 | abort (); | |
10660 | ||
26e5b205 JH |
10661 | nparts = ix86_split_to_parts (operands[1], part[1], GET_MODE (operands[0])); |
10662 | ix86_split_to_parts (operands[0], part[0], GET_MODE (operands[0])); | |
2450a057 JH |
10663 | |
10664 | /* When emitting push, take care for source operands on the stack. */ | |
10665 | if (push && GET_CODE (operands[1]) == MEM | |
10666 | && reg_overlap_mentioned_p (stack_pointer_rtx, operands[1])) | |
10667 | { | |
26e5b205 | 10668 | if (nparts == 3) |
886cbb88 JH |
10669 | part[1][1] = change_address (part[1][1], GET_MODE (part[1][1]), |
10670 | XEXP (part[1][2], 0)); | |
10671 | part[1][0] = change_address (part[1][0], GET_MODE (part[1][0]), | |
10672 | XEXP (part[1][1], 0)); | |
2450a057 JH |
10673 | } |
10674 | ||
0f290768 | 10675 | /* We need to do copy in the right order in case an address register |
2450a057 JH |
10676 | of the source overlaps the destination. */ |
10677 | if (REG_P (part[0][0]) && GET_CODE (part[1][0]) == MEM) | |
10678 | { | |
10679 | if (reg_overlap_mentioned_p (part[0][0], XEXP (part[1][0], 0))) | |
10680 | collisions++; | |
10681 | if (reg_overlap_mentioned_p (part[0][1], XEXP (part[1][0], 0))) | |
10682 | collisions++; | |
26e5b205 | 10683 | if (nparts == 3 |
2450a057 JH |
10684 | && reg_overlap_mentioned_p (part[0][2], XEXP (part[1][0], 0))) |
10685 | collisions++; | |
10686 | ||
10687 | /* Collision in the middle part can be handled by reordering. */ | |
26e5b205 | 10688 | if (collisions == 1 && nparts == 3 |
2450a057 | 10689 | && reg_overlap_mentioned_p (part[0][1], XEXP (part[1][0], 0))) |
e075ae69 | 10690 | { |
2450a057 JH |
10691 | rtx tmp; |
10692 | tmp = part[0][1]; part[0][1] = part[0][2]; part[0][2] = tmp; | |
10693 | tmp = part[1][1]; part[1][1] = part[1][2]; part[1][2] = tmp; | |
10694 | } | |
e075ae69 | 10695 | |
2450a057 JH |
10696 | /* If there are more collisions, we can't handle it by reordering. |
10697 | Do an lea to the last part and use only one colliding move. */ | |
10698 | else if (collisions > 1) | |
10699 | { | |
8231b3f9 RH |
10700 | rtx base; |
10701 | ||
2450a057 | 10702 | collisions = 1; |
8231b3f9 RH |
10703 | |
10704 | base = part[0][nparts - 1]; | |
10705 | ||
10706 | /* Handle the case when the last part isn't valid for lea. | |
10707 | Happens in 64-bit mode storing the 12-byte XFmode. */ | |
10708 | if (GET_MODE (base) != Pmode) | |
10709 | base = gen_rtx_REG (Pmode, REGNO (base)); | |
10710 | ||
10711 | emit_insn (gen_rtx_SET (VOIDmode, base, XEXP (part[1][0], 0))); | |
10712 | part[1][0] = replace_equiv_address (part[1][0], base); | |
10713 | part[1][1] = replace_equiv_address (part[1][1], | |
10714 | plus_constant (base, UNITS_PER_WORD)); | |
26e5b205 | 10715 | if (nparts == 3) |
8231b3f9 RH |
10716 | part[1][2] = replace_equiv_address (part[1][2], |
10717 | plus_constant (base, 8)); | |
2450a057 JH |
10718 | } |
10719 | } | |
10720 | ||
10721 | if (push) | |
10722 | { | |
26e5b205 | 10723 | if (!TARGET_64BIT) |
2b589241 | 10724 | { |
26e5b205 JH |
10725 | if (nparts == 3) |
10726 | { | |
f8a1ebc6 JH |
10727 | if (TARGET_128BIT_LONG_DOUBLE && mode == XFmode) |
10728 | emit_insn (gen_addsi3 (stack_pointer_rtx, stack_pointer_rtx, GEN_INT (-4))); | |
26e5b205 JH |
10729 | emit_move_insn (part[0][2], part[1][2]); |
10730 | } | |
2b589241 | 10731 | } |
26e5b205 JH |
10732 | else |
10733 | { | |
10734 | /* In 64bit mode we don't have 32bit push available. In case this is | |
10735 | register, it is OK - we will just use larger counterpart. We also | |
10736 | retype memory - these comes from attempt to avoid REX prefix on | |
10737 | moving of second half of TFmode value. */ | |
10738 | if (GET_MODE (part[1][1]) == SImode) | |
10739 | { | |
10740 | if (GET_CODE (part[1][1]) == MEM) | |
f4ef873c | 10741 | part[1][1] = adjust_address (part[1][1], DImode, 0); |
26e5b205 JH |
10742 | else if (REG_P (part[1][1])) |
10743 | part[1][1] = gen_rtx_REG (DImode, REGNO (part[1][1])); | |
10744 | else | |
b531087a | 10745 | abort (); |
886cbb88 JH |
10746 | if (GET_MODE (part[1][0]) == SImode) |
10747 | part[1][0] = part[1][1]; | |
26e5b205 JH |
10748 | } |
10749 | } | |
10750 | emit_move_insn (part[0][1], part[1][1]); | |
10751 | emit_move_insn (part[0][0], part[1][0]); | |
10752 | return; | |
2450a057 JH |
10753 | } |
10754 | ||
10755 | /* Choose correct order to not overwrite the source before it is copied. */ | |
10756 | if ((REG_P (part[0][0]) | |
10757 | && REG_P (part[1][1]) | |
10758 | && (REGNO (part[0][0]) == REGNO (part[1][1]) | |
26e5b205 | 10759 | || (nparts == 3 |
2450a057 JH |
10760 | && REGNO (part[0][0]) == REGNO (part[1][2])))) |
10761 | || (collisions > 0 | |
10762 | && reg_overlap_mentioned_p (part[0][0], XEXP (part[1][0], 0)))) | |
10763 | { | |
26e5b205 | 10764 | if (nparts == 3) |
2450a057 | 10765 | { |
26e5b205 JH |
10766 | operands[2] = part[0][2]; |
10767 | operands[3] = part[0][1]; | |
10768 | operands[4] = part[0][0]; | |
10769 | operands[5] = part[1][2]; | |
10770 | operands[6] = part[1][1]; | |
10771 | operands[7] = part[1][0]; | |
2450a057 JH |
10772 | } |
10773 | else | |
10774 | { | |
26e5b205 JH |
10775 | operands[2] = part[0][1]; |
10776 | operands[3] = part[0][0]; | |
10777 | operands[5] = part[1][1]; | |
10778 | operands[6] = part[1][0]; | |
2450a057 JH |
10779 | } |
10780 | } | |
10781 | else | |
10782 | { | |
26e5b205 | 10783 | if (nparts == 3) |
2450a057 | 10784 | { |
26e5b205 JH |
10785 | operands[2] = part[0][0]; |
10786 | operands[3] = part[0][1]; | |
10787 | operands[4] = part[0][2]; | |
10788 | operands[5] = part[1][0]; | |
10789 | operands[6] = part[1][1]; | |
10790 | operands[7] = part[1][2]; | |
2450a057 JH |
10791 | } |
10792 | else | |
10793 | { | |
26e5b205 JH |
10794 | operands[2] = part[0][0]; |
10795 | operands[3] = part[0][1]; | |
10796 | operands[5] = part[1][0]; | |
10797 | operands[6] = part[1][1]; | |
e075ae69 RH |
10798 | } |
10799 | } | |
26e5b205 JH |
10800 | emit_move_insn (operands[2], operands[5]); |
10801 | emit_move_insn (operands[3], operands[6]); | |
10802 | if (nparts == 3) | |
10803 | emit_move_insn (operands[4], operands[7]); | |
32b5b1aa | 10804 | |
26e5b205 | 10805 | return; |
32b5b1aa | 10806 | } |
32b5b1aa | 10807 | |
e075ae69 | 10808 | void |
b96a374d | 10809 | ix86_split_ashldi (rtx *operands, rtx scratch) |
32b5b1aa | 10810 | { |
e075ae69 RH |
10811 | rtx low[2], high[2]; |
10812 | int count; | |
b985a30f | 10813 | |
e075ae69 RH |
10814 | if (GET_CODE (operands[2]) == CONST_INT) |
10815 | { | |
10816 | split_di (operands, 2, low, high); | |
10817 | count = INTVAL (operands[2]) & 63; | |
32b5b1aa | 10818 | |
e075ae69 RH |
10819 | if (count >= 32) |
10820 | { | |
10821 | emit_move_insn (high[0], low[1]); | |
10822 | emit_move_insn (low[0], const0_rtx); | |
b985a30f | 10823 | |
e075ae69 RH |
10824 | if (count > 32) |
10825 | emit_insn (gen_ashlsi3 (high[0], high[0], GEN_INT (count - 32))); | |
10826 | } | |
10827 | else | |
10828 | { | |
10829 | if (!rtx_equal_p (operands[0], operands[1])) | |
10830 | emit_move_insn (operands[0], operands[1]); | |
10831 | emit_insn (gen_x86_shld_1 (high[0], low[0], GEN_INT (count))); | |
10832 | emit_insn (gen_ashlsi3 (low[0], low[0], GEN_INT (count))); | |
10833 | } | |
10834 | } | |
10835 | else | |
10836 | { | |
10837 | if (!rtx_equal_p (operands[0], operands[1])) | |
10838 | emit_move_insn (operands[0], operands[1]); | |
b985a30f | 10839 | |
e075ae69 | 10840 | split_di (operands, 1, low, high); |
b985a30f | 10841 | |
e075ae69 RH |
10842 | emit_insn (gen_x86_shld_1 (high[0], low[0], operands[2])); |
10843 | emit_insn (gen_ashlsi3 (low[0], low[0], operands[2])); | |
32b5b1aa | 10844 | |
fe577e58 | 10845 | if (TARGET_CMOVE && (! no_new_pseudos || scratch)) |
e075ae69 | 10846 | { |
fe577e58 | 10847 | if (! no_new_pseudos) |
e075ae69 RH |
10848 | scratch = force_reg (SImode, const0_rtx); |
10849 | else | |
10850 | emit_move_insn (scratch, const0_rtx); | |
10851 | ||
10852 | emit_insn (gen_x86_shift_adj_1 (high[0], low[0], operands[2], | |
10853 | scratch)); | |
10854 | } | |
10855 | else | |
10856 | emit_insn (gen_x86_shift_adj_2 (high[0], low[0], operands[2])); | |
10857 | } | |
e9a25f70 | 10858 | } |
32b5b1aa | 10859 | |
e075ae69 | 10860 | void |
b96a374d | 10861 | ix86_split_ashrdi (rtx *operands, rtx scratch) |
32b5b1aa | 10862 | { |
e075ae69 RH |
10863 | rtx low[2], high[2]; |
10864 | int count; | |
32b5b1aa | 10865 | |
e075ae69 RH |
10866 | if (GET_CODE (operands[2]) == CONST_INT) |
10867 | { | |
10868 | split_di (operands, 2, low, high); | |
10869 | count = INTVAL (operands[2]) & 63; | |
32b5b1aa | 10870 | |
e075ae69 RH |
10871 | if (count >= 32) |
10872 | { | |
10873 | emit_move_insn (low[0], high[1]); | |
32b5b1aa | 10874 | |
e075ae69 RH |
10875 | if (! reload_completed) |
10876 | emit_insn (gen_ashrsi3 (high[0], low[0], GEN_INT (31))); | |
10877 | else | |
10878 | { | |
10879 | emit_move_insn (high[0], low[0]); | |
10880 | emit_insn (gen_ashrsi3 (high[0], high[0], GEN_INT (31))); | |
10881 | } | |
10882 | ||
10883 | if (count > 32) | |
10884 | emit_insn (gen_ashrsi3 (low[0], low[0], GEN_INT (count - 32))); | |
10885 | } | |
10886 | else | |
10887 | { | |
10888 | if (!rtx_equal_p (operands[0], operands[1])) | |
10889 | emit_move_insn (operands[0], operands[1]); | |
10890 | emit_insn (gen_x86_shrd_1 (low[0], high[0], GEN_INT (count))); | |
10891 | emit_insn (gen_ashrsi3 (high[0], high[0], GEN_INT (count))); | |
10892 | } | |
10893 | } | |
10894 | else | |
32b5b1aa | 10895 | { |
e075ae69 RH |
10896 | if (!rtx_equal_p (operands[0], operands[1])) |
10897 | emit_move_insn (operands[0], operands[1]); | |
10898 | ||
10899 | split_di (operands, 1, low, high); | |
10900 | ||
10901 | emit_insn (gen_x86_shrd_1 (low[0], high[0], operands[2])); | |
10902 | emit_insn (gen_ashrsi3 (high[0], high[0], operands[2])); | |
10903 | ||
fe577e58 | 10904 | if (TARGET_CMOVE && (! no_new_pseudos || scratch)) |
e075ae69 | 10905 | { |
fe577e58 | 10906 | if (! no_new_pseudos) |
e075ae69 RH |
10907 | scratch = gen_reg_rtx (SImode); |
10908 | emit_move_insn (scratch, high[0]); | |
10909 | emit_insn (gen_ashrsi3 (scratch, scratch, GEN_INT (31))); | |
10910 | emit_insn (gen_x86_shift_adj_1 (low[0], high[0], operands[2], | |
10911 | scratch)); | |
10912 | } | |
10913 | else | |
10914 | emit_insn (gen_x86_shift_adj_3 (low[0], high[0], operands[2])); | |
32b5b1aa | 10915 | } |
e075ae69 | 10916 | } |
32b5b1aa | 10917 | |
e075ae69 | 10918 | void |
b96a374d | 10919 | ix86_split_lshrdi (rtx *operands, rtx scratch) |
e075ae69 RH |
10920 | { |
10921 | rtx low[2], high[2]; | |
10922 | int count; | |
32b5b1aa | 10923 | |
e075ae69 | 10924 | if (GET_CODE (operands[2]) == CONST_INT) |
32b5b1aa | 10925 | { |
e075ae69 RH |
10926 | split_di (operands, 2, low, high); |
10927 | count = INTVAL (operands[2]) & 63; | |
10928 | ||
10929 | if (count >= 32) | |
c7271385 | 10930 | { |
e075ae69 RH |
10931 | emit_move_insn (low[0], high[1]); |
10932 | emit_move_insn (high[0], const0_rtx); | |
32b5b1aa | 10933 | |
e075ae69 RH |
10934 | if (count > 32) |
10935 | emit_insn (gen_lshrsi3 (low[0], low[0], GEN_INT (count - 32))); | |
10936 | } | |
10937 | else | |
10938 | { | |
10939 | if (!rtx_equal_p (operands[0], operands[1])) | |
10940 | emit_move_insn (operands[0], operands[1]); | |
10941 | emit_insn (gen_x86_shrd_1 (low[0], high[0], GEN_INT (count))); | |
10942 | emit_insn (gen_lshrsi3 (high[0], high[0], GEN_INT (count))); | |
10943 | } | |
32b5b1aa | 10944 | } |
e075ae69 RH |
10945 | else |
10946 | { | |
10947 | if (!rtx_equal_p (operands[0], operands[1])) | |
10948 | emit_move_insn (operands[0], operands[1]); | |
32b5b1aa | 10949 | |
e075ae69 RH |
10950 | split_di (operands, 1, low, high); |
10951 | ||
10952 | emit_insn (gen_x86_shrd_1 (low[0], high[0], operands[2])); | |
10953 | emit_insn (gen_lshrsi3 (high[0], high[0], operands[2])); | |
10954 | ||
10955 | /* Heh. By reversing the arguments, we can reuse this pattern. */ | |
fe577e58 | 10956 | if (TARGET_CMOVE && (! no_new_pseudos || scratch)) |
e075ae69 | 10957 | { |
fe577e58 | 10958 | if (! no_new_pseudos) |
e075ae69 RH |
10959 | scratch = force_reg (SImode, const0_rtx); |
10960 | else | |
10961 | emit_move_insn (scratch, const0_rtx); | |
10962 | ||
10963 | emit_insn (gen_x86_shift_adj_1 (low[0], high[0], operands[2], | |
10964 | scratch)); | |
10965 | } | |
10966 | else | |
10967 | emit_insn (gen_x86_shift_adj_2 (low[0], high[0], operands[2])); | |
10968 | } | |
32b5b1aa | 10969 | } |
3f803cd9 | 10970 | |
0407c02b | 10971 | /* Helper function for the string operations below. Dest VARIABLE whether |
0945b39d JH |
10972 | it is aligned to VALUE bytes. If true, jump to the label. */ |
10973 | static rtx | |
b96a374d | 10974 | ix86_expand_aligntest (rtx variable, int value) |
0945b39d JH |
10975 | { |
10976 | rtx label = gen_label_rtx (); | |
10977 | rtx tmpcount = gen_reg_rtx (GET_MODE (variable)); | |
10978 | if (GET_MODE (variable) == DImode) | |
10979 | emit_insn (gen_anddi3 (tmpcount, variable, GEN_INT (value))); | |
10980 | else | |
10981 | emit_insn (gen_andsi3 (tmpcount, variable, GEN_INT (value))); | |
10982 | emit_cmp_and_jump_insns (tmpcount, const0_rtx, EQ, 0, GET_MODE (variable), | |
d43e0b7d | 10983 | 1, label); |
0945b39d JH |
10984 | return label; |
10985 | } | |
10986 | ||
10987 | /* Adjust COUNTER by the VALUE. */ | |
10988 | static void | |
b96a374d | 10989 | ix86_adjust_counter (rtx countreg, HOST_WIDE_INT value) |
0945b39d JH |
10990 | { |
10991 | if (GET_MODE (countreg) == DImode) | |
10992 | emit_insn (gen_adddi3 (countreg, countreg, GEN_INT (-value))); | |
10993 | else | |
10994 | emit_insn (gen_addsi3 (countreg, countreg, GEN_INT (-value))); | |
10995 | } | |
10996 | ||
10997 | /* Zero extend possibly SImode EXP to Pmode register. */ | |
d24b3457 | 10998 | rtx |
b96a374d | 10999 | ix86_zero_extend_to_Pmode (rtx exp) |
0945b39d JH |
11000 | { |
11001 | rtx r; | |
11002 | if (GET_MODE (exp) == VOIDmode) | |
11003 | return force_reg (Pmode, exp); | |
11004 | if (GET_MODE (exp) == Pmode) | |
11005 | return copy_to_mode_reg (Pmode, exp); | |
11006 | r = gen_reg_rtx (Pmode); | |
11007 | emit_insn (gen_zero_extendsidi2 (r, exp)); | |
11008 | return r; | |
11009 | } | |
11010 | ||
11011 | /* Expand string move (memcpy) operation. Use i386 string operations when | |
11012 | profitable. expand_clrstr contains similar code. */ | |
11013 | int | |
b96a374d | 11014 | ix86_expand_movstr (rtx dst, rtx src, rtx count_exp, rtx align_exp) |
0945b39d | 11015 | { |
4e44c1ef | 11016 | rtx srcreg, destreg, countreg, srcexp, destexp; |
0945b39d JH |
11017 | enum machine_mode counter_mode; |
11018 | HOST_WIDE_INT align = 0; | |
11019 | unsigned HOST_WIDE_INT count = 0; | |
0945b39d | 11020 | |
0945b39d JH |
11021 | if (GET_CODE (align_exp) == CONST_INT) |
11022 | align = INTVAL (align_exp); | |
11023 | ||
d0a5295a RH |
11024 | /* Can't use any of this if the user has appropriated esi or edi. */ |
11025 | if (global_regs[4] || global_regs[5]) | |
11026 | return 0; | |
11027 | ||
5519a4f9 | 11028 | /* This simple hack avoids all inlining code and simplifies code below. */ |
0945b39d JH |
11029 | if (!TARGET_ALIGN_STRINGOPS) |
11030 | align = 64; | |
11031 | ||
11032 | if (GET_CODE (count_exp) == CONST_INT) | |
26771da7 JH |
11033 | { |
11034 | count = INTVAL (count_exp); | |
11035 | if (!TARGET_INLINE_ALL_STRINGOPS && count > 64) | |
11036 | return 0; | |
11037 | } | |
0945b39d JH |
11038 | |
11039 | /* Figure out proper mode for counter. For 32bits it is always SImode, | |
11040 | for 64bits use SImode when possible, otherwise DImode. | |
11041 | Set count to number of bytes copied when known at compile time. */ | |
11042 | if (!TARGET_64BIT || GET_MODE (count_exp) == SImode | |
11043 | || x86_64_zero_extended_value (count_exp)) | |
11044 | counter_mode = SImode; | |
11045 | else | |
11046 | counter_mode = DImode; | |
11047 | ||
11048 | if (counter_mode != SImode && counter_mode != DImode) | |
11049 | abort (); | |
11050 | ||
11051 | destreg = copy_to_mode_reg (Pmode, XEXP (dst, 0)); | |
4e44c1ef JJ |
11052 | if (destreg != XEXP (dst, 0)) |
11053 | dst = replace_equiv_address_nv (dst, destreg); | |
0945b39d | 11054 | srcreg = copy_to_mode_reg (Pmode, XEXP (src, 0)); |
4e44c1ef JJ |
11055 | if (srcreg != XEXP (src, 0)) |
11056 | src = replace_equiv_address_nv (src, srcreg); | |
0945b39d JH |
11057 | |
11058 | /* When optimizing for size emit simple rep ; movsb instruction for | |
11059 | counts not divisible by 4. */ | |
11060 | ||
11061 | if ((!optimize || optimize_size) && (count == 0 || (count & 0x03))) | |
11062 | { | |
4e44c1ef | 11063 | emit_insn (gen_cld ()); |
0945b39d | 11064 | countreg = ix86_zero_extend_to_Pmode (count_exp); |
4e44c1ef JJ |
11065 | destexp = gen_rtx_PLUS (Pmode, destreg, countreg); |
11066 | srcexp = gen_rtx_PLUS (Pmode, srcreg, countreg); | |
11067 | emit_insn (gen_rep_mov (destreg, dst, srcreg, src, countreg, | |
11068 | destexp, srcexp)); | |
0945b39d JH |
11069 | } |
11070 | ||
11071 | /* For constant aligned (or small unaligned) copies use rep movsl | |
11072 | followed by code copying the rest. For PentiumPro ensure 8 byte | |
11073 | alignment to allow rep movsl acceleration. */ | |
11074 | ||
11075 | else if (count != 0 | |
11076 | && (align >= 8 | |
11077 | || (!TARGET_PENTIUMPRO && !TARGET_64BIT && align >= 4) | |
b531087a | 11078 | || optimize_size || count < (unsigned int) 64)) |
0945b39d | 11079 | { |
4e44c1ef | 11080 | unsigned HOST_WIDE_INT offset = 0; |
0945b39d | 11081 | int size = TARGET_64BIT && !optimize_size ? 8 : 4; |
4e44c1ef JJ |
11082 | rtx srcmem, dstmem; |
11083 | ||
11084 | emit_insn (gen_cld ()); | |
0945b39d JH |
11085 | if (count & ~(size - 1)) |
11086 | { | |
11087 | countreg = copy_to_mode_reg (counter_mode, | |
11088 | GEN_INT ((count >> (size == 4 ? 2 : 3)) | |
11089 | & (TARGET_64BIT ? -1 : 0x3fffffff))); | |
11090 | countreg = ix86_zero_extend_to_Pmode (countreg); | |
4e44c1ef JJ |
11091 | |
11092 | destexp = gen_rtx_ASHIFT (Pmode, countreg, | |
11093 | GEN_INT (size == 4 ? 2 : 3)); | |
11094 | srcexp = gen_rtx_PLUS (Pmode, destexp, srcreg); | |
11095 | destexp = gen_rtx_PLUS (Pmode, destexp, destreg); | |
11096 | ||
11097 | emit_insn (gen_rep_mov (destreg, dst, srcreg, src, | |
11098 | countreg, destexp, srcexp)); | |
11099 | offset = count & ~(size - 1); | |
0945b39d JH |
11100 | } |
11101 | if (size == 8 && (count & 0x04)) | |
4e44c1ef JJ |
11102 | { |
11103 | srcmem = adjust_automodify_address_nv (src, SImode, srcreg, | |
11104 | offset); | |
11105 | dstmem = adjust_automodify_address_nv (dst, SImode, destreg, | |
11106 | offset); | |
11107 | emit_insn (gen_strmov (destreg, dstmem, srcreg, srcmem)); | |
11108 | offset += 4; | |
11109 | } | |
0945b39d | 11110 | if (count & 0x02) |
4e44c1ef JJ |
11111 | { |
11112 | srcmem = adjust_automodify_address_nv (src, HImode, srcreg, | |
11113 | offset); | |
11114 | dstmem = adjust_automodify_address_nv (dst, HImode, destreg, | |
11115 | offset); | |
11116 | emit_insn (gen_strmov (destreg, dstmem, srcreg, srcmem)); | |
11117 | offset += 2; | |
11118 | } | |
0945b39d | 11119 | if (count & 0x01) |
4e44c1ef JJ |
11120 | { |
11121 | srcmem = adjust_automodify_address_nv (src, QImode, srcreg, | |
11122 | offset); | |
11123 | dstmem = adjust_automodify_address_nv (dst, QImode, destreg, | |
11124 | offset); | |
11125 | emit_insn (gen_strmov (destreg, dstmem, srcreg, srcmem)); | |
11126 | } | |
0945b39d JH |
11127 | } |
11128 | /* The generic code based on the glibc implementation: | |
11129 | - align destination to 4 bytes (8 byte alignment is used for PentiumPro | |
11130 | allowing accelerated copying there) | |
11131 | - copy the data using rep movsl | |
11132 | - copy the rest. */ | |
11133 | else | |
11134 | { | |
11135 | rtx countreg2; | |
11136 | rtx label = NULL; | |
4e44c1ef | 11137 | rtx srcmem, dstmem; |
37ad04a5 JH |
11138 | int desired_alignment = (TARGET_PENTIUMPRO |
11139 | && (count == 0 || count >= (unsigned int) 260) | |
11140 | ? 8 : UNITS_PER_WORD); | |
4e44c1ef JJ |
11141 | /* Get rid of MEM_OFFSETs, they won't be accurate. */ |
11142 | dst = change_address (dst, BLKmode, destreg); | |
11143 | src = change_address (src, BLKmode, srcreg); | |
0945b39d JH |
11144 | |
11145 | /* In case we don't know anything about the alignment, default to | |
11146 | library version, since it is usually equally fast and result in | |
b96a374d | 11147 | shorter code. |
4977bab6 ZW |
11148 | |
11149 | Also emit call when we know that the count is large and call overhead | |
11150 | will not be important. */ | |
11151 | if (!TARGET_INLINE_ALL_STRINGOPS | |
11152 | && (align < UNITS_PER_WORD || !TARGET_REP_MOVL_OPTIMAL)) | |
4e44c1ef | 11153 | return 0; |
0945b39d JH |
11154 | |
11155 | if (TARGET_SINGLE_STRINGOP) | |
11156 | emit_insn (gen_cld ()); | |
11157 | ||
11158 | countreg2 = gen_reg_rtx (Pmode); | |
11159 | countreg = copy_to_mode_reg (counter_mode, count_exp); | |
11160 | ||
11161 | /* We don't use loops to align destination and to copy parts smaller | |
11162 | than 4 bytes, because gcc is able to optimize such code better (in | |
11163 | the case the destination or the count really is aligned, gcc is often | |
11164 | able to predict the branches) and also it is friendlier to the | |
a4f31c00 | 11165 | hardware branch prediction. |
0945b39d | 11166 | |
d1f87653 | 11167 | Using loops is beneficial for generic case, because we can |
0945b39d JH |
11168 | handle small counts using the loops. Many CPUs (such as Athlon) |
11169 | have large REP prefix setup costs. | |
11170 | ||
4aae8a9a | 11171 | This is quite costly. Maybe we can revisit this decision later or |
0945b39d JH |
11172 | add some customizability to this code. */ |
11173 | ||
37ad04a5 | 11174 | if (count == 0 && align < desired_alignment) |
0945b39d JH |
11175 | { |
11176 | label = gen_label_rtx (); | |
aaae0bb9 | 11177 | emit_cmp_and_jump_insns (countreg, GEN_INT (desired_alignment - 1), |
d43e0b7d | 11178 | LEU, 0, counter_mode, 1, label); |
0945b39d JH |
11179 | } |
11180 | if (align <= 1) | |
11181 | { | |
11182 | rtx label = ix86_expand_aligntest (destreg, 1); | |
4e44c1ef JJ |
11183 | srcmem = change_address (src, QImode, srcreg); |
11184 | dstmem = change_address (dst, QImode, destreg); | |
11185 | emit_insn (gen_strmov (destreg, dstmem, srcreg, srcmem)); | |
0945b39d JH |
11186 | ix86_adjust_counter (countreg, 1); |
11187 | emit_label (label); | |
11188 | LABEL_NUSES (label) = 1; | |
11189 | } | |
11190 | if (align <= 2) | |
11191 | { | |
11192 | rtx label = ix86_expand_aligntest (destreg, 2); | |
4e44c1ef JJ |
11193 | srcmem = change_address (src, HImode, srcreg); |
11194 | dstmem = change_address (dst, HImode, destreg); | |
11195 | emit_insn (gen_strmov (destreg, dstmem, srcreg, srcmem)); | |
0945b39d JH |
11196 | ix86_adjust_counter (countreg, 2); |
11197 | emit_label (label); | |
11198 | LABEL_NUSES (label) = 1; | |
11199 | } | |
37ad04a5 | 11200 | if (align <= 4 && desired_alignment > 4) |
0945b39d JH |
11201 | { |
11202 | rtx label = ix86_expand_aligntest (destreg, 4); | |
4e44c1ef JJ |
11203 | srcmem = change_address (src, SImode, srcreg); |
11204 | dstmem = change_address (dst, SImode, destreg); | |
11205 | emit_insn (gen_strmov (destreg, dstmem, srcreg, srcmem)); | |
0945b39d JH |
11206 | ix86_adjust_counter (countreg, 4); |
11207 | emit_label (label); | |
11208 | LABEL_NUSES (label) = 1; | |
11209 | } | |
11210 | ||
37ad04a5 JH |
11211 | if (label && desired_alignment > 4 && !TARGET_64BIT) |
11212 | { | |
11213 | emit_label (label); | |
11214 | LABEL_NUSES (label) = 1; | |
11215 | label = NULL_RTX; | |
11216 | } | |
0945b39d JH |
11217 | if (!TARGET_SINGLE_STRINGOP) |
11218 | emit_insn (gen_cld ()); | |
11219 | if (TARGET_64BIT) | |
11220 | { | |
11221 | emit_insn (gen_lshrdi3 (countreg2, ix86_zero_extend_to_Pmode (countreg), | |
11222 | GEN_INT (3))); | |
4e44c1ef | 11223 | destexp = gen_rtx_ASHIFT (Pmode, countreg2, GEN_INT (3)); |
0945b39d JH |
11224 | } |
11225 | else | |
11226 | { | |
4e44c1ef JJ |
11227 | emit_insn (gen_lshrsi3 (countreg2, countreg, const2_rtx)); |
11228 | destexp = gen_rtx_ASHIFT (Pmode, countreg2, const2_rtx); | |
0945b39d | 11229 | } |
4e44c1ef JJ |
11230 | srcexp = gen_rtx_PLUS (Pmode, destexp, srcreg); |
11231 | destexp = gen_rtx_PLUS (Pmode, destexp, destreg); | |
11232 | emit_insn (gen_rep_mov (destreg, dst, srcreg, src, | |
11233 | countreg2, destexp, srcexp)); | |
0945b39d JH |
11234 | |
11235 | if (label) | |
11236 | { | |
11237 | emit_label (label); | |
11238 | LABEL_NUSES (label) = 1; | |
11239 | } | |
11240 | if (TARGET_64BIT && align > 4 && count != 0 && (count & 4)) | |
4e44c1ef JJ |
11241 | { |
11242 | srcmem = change_address (src, SImode, srcreg); | |
11243 | dstmem = change_address (dst, SImode, destreg); | |
11244 | emit_insn (gen_strmov (destreg, dstmem, srcreg, srcmem)); | |
11245 | } | |
0945b39d JH |
11246 | if ((align <= 4 || count == 0) && TARGET_64BIT) |
11247 | { | |
11248 | rtx label = ix86_expand_aligntest (countreg, 4); | |
4e44c1ef JJ |
11249 | srcmem = change_address (src, SImode, srcreg); |
11250 | dstmem = change_address (dst, SImode, destreg); | |
11251 | emit_insn (gen_strmov (destreg, dstmem, srcreg, srcmem)); | |
0945b39d JH |
11252 | emit_label (label); |
11253 | LABEL_NUSES (label) = 1; | |
11254 | } | |
11255 | if (align > 2 && count != 0 && (count & 2)) | |
4e44c1ef JJ |
11256 | { |
11257 | srcmem = change_address (src, HImode, srcreg); | |
11258 | dstmem = change_address (dst, HImode, destreg); | |
11259 | emit_insn (gen_strmov (destreg, dstmem, srcreg, srcmem)); | |
11260 | } | |
0945b39d JH |
11261 | if (align <= 2 || count == 0) |
11262 | { | |
11263 | rtx label = ix86_expand_aligntest (countreg, 2); | |
4e44c1ef JJ |
11264 | srcmem = change_address (src, HImode, srcreg); |
11265 | dstmem = change_address (dst, HImode, destreg); | |
11266 | emit_insn (gen_strmov (destreg, dstmem, srcreg, srcmem)); | |
0945b39d JH |
11267 | emit_label (label); |
11268 | LABEL_NUSES (label) = 1; | |
11269 | } | |
11270 | if (align > 1 && count != 0 && (count & 1)) | |
4e44c1ef JJ |
11271 | { |
11272 | srcmem = change_address (src, QImode, srcreg); | |
11273 | dstmem = change_address (dst, QImode, destreg); | |
11274 | emit_insn (gen_strmov (destreg, dstmem, srcreg, srcmem)); | |
11275 | } | |
0945b39d JH |
11276 | if (align <= 1 || count == 0) |
11277 | { | |
11278 | rtx label = ix86_expand_aligntest (countreg, 1); | |
4e44c1ef JJ |
11279 | srcmem = change_address (src, QImode, srcreg); |
11280 | dstmem = change_address (dst, QImode, destreg); | |
11281 | emit_insn (gen_strmov (destreg, dstmem, srcreg, srcmem)); | |
0945b39d JH |
11282 | emit_label (label); |
11283 | LABEL_NUSES (label) = 1; | |
11284 | } | |
11285 | } | |
11286 | ||
0945b39d JH |
11287 | return 1; |
11288 | } | |
11289 | ||
11290 | /* Expand string clear operation (bzero). Use i386 string operations when | |
11291 | profitable. expand_movstr contains similar code. */ | |
11292 | int | |
4e44c1ef | 11293 | ix86_expand_clrstr (rtx dst, rtx count_exp, rtx align_exp) |
0945b39d | 11294 | { |
4e44c1ef | 11295 | rtx destreg, zeroreg, countreg, destexp; |
0945b39d JH |
11296 | enum machine_mode counter_mode; |
11297 | HOST_WIDE_INT align = 0; | |
11298 | unsigned HOST_WIDE_INT count = 0; | |
11299 | ||
11300 | if (GET_CODE (align_exp) == CONST_INT) | |
11301 | align = INTVAL (align_exp); | |
11302 | ||
d0a5295a RH |
11303 | /* Can't use any of this if the user has appropriated esi. */ |
11304 | if (global_regs[4]) | |
11305 | return 0; | |
11306 | ||
5519a4f9 | 11307 | /* This simple hack avoids all inlining code and simplifies code below. */ |
0945b39d JH |
11308 | if (!TARGET_ALIGN_STRINGOPS) |
11309 | align = 32; | |
11310 | ||
11311 | if (GET_CODE (count_exp) == CONST_INT) | |
26771da7 JH |
11312 | { |
11313 | count = INTVAL (count_exp); | |
11314 | if (!TARGET_INLINE_ALL_STRINGOPS && count > 64) | |
11315 | return 0; | |
11316 | } | |
0945b39d JH |
11317 | /* Figure out proper mode for counter. For 32bits it is always SImode, |
11318 | for 64bits use SImode when possible, otherwise DImode. | |
11319 | Set count to number of bytes copied when known at compile time. */ | |
11320 | if (!TARGET_64BIT || GET_MODE (count_exp) == SImode | |
11321 | || x86_64_zero_extended_value (count_exp)) | |
11322 | counter_mode = SImode; | |
11323 | else | |
11324 | counter_mode = DImode; | |
11325 | ||
4e44c1ef JJ |
11326 | destreg = copy_to_mode_reg (Pmode, XEXP (dst, 0)); |
11327 | if (destreg != XEXP (dst, 0)) | |
11328 | dst = replace_equiv_address_nv (dst, destreg); | |
0945b39d JH |
11329 | |
11330 | emit_insn (gen_cld ()); | |
11331 | ||
11332 | /* When optimizing for size emit simple rep ; movsb instruction for | |
11333 | counts not divisible by 4. */ | |
11334 | ||
11335 | if ((!optimize || optimize_size) && (count == 0 || (count & 0x03))) | |
11336 | { | |
11337 | countreg = ix86_zero_extend_to_Pmode (count_exp); | |
11338 | zeroreg = copy_to_mode_reg (QImode, const0_rtx); | |
4e44c1ef JJ |
11339 | destexp = gen_rtx_PLUS (Pmode, destreg, countreg); |
11340 | emit_insn (gen_rep_stos (destreg, countreg, dst, zeroreg, destexp)); | |
0945b39d JH |
11341 | } |
11342 | else if (count != 0 | |
11343 | && (align >= 8 | |
11344 | || (!TARGET_PENTIUMPRO && !TARGET_64BIT && align >= 4) | |
b531087a | 11345 | || optimize_size || count < (unsigned int) 64)) |
0945b39d JH |
11346 | { |
11347 | int size = TARGET_64BIT && !optimize_size ? 8 : 4; | |
4e44c1ef JJ |
11348 | unsigned HOST_WIDE_INT offset = 0; |
11349 | ||
0945b39d JH |
11350 | zeroreg = copy_to_mode_reg (size == 4 ? SImode : DImode, const0_rtx); |
11351 | if (count & ~(size - 1)) | |
11352 | { | |
11353 | countreg = copy_to_mode_reg (counter_mode, | |
11354 | GEN_INT ((count >> (size == 4 ? 2 : 3)) | |
11355 | & (TARGET_64BIT ? -1 : 0x3fffffff))); | |
11356 | countreg = ix86_zero_extend_to_Pmode (countreg); | |
4e44c1ef JJ |
11357 | destexp = gen_rtx_ASHIFT (Pmode, countreg, GEN_INT (size == 4 ? 2 : 3)); |
11358 | destexp = gen_rtx_PLUS (Pmode, destexp, destreg); | |
11359 | emit_insn (gen_rep_stos (destreg, countreg, dst, zeroreg, destexp)); | |
11360 | offset = count & ~(size - 1); | |
0945b39d JH |
11361 | } |
11362 | if (size == 8 && (count & 0x04)) | |
4e44c1ef JJ |
11363 | { |
11364 | rtx mem = adjust_automodify_address_nv (dst, SImode, destreg, | |
11365 | offset); | |
11366 | emit_insn (gen_strset (destreg, mem, | |
0945b39d | 11367 | gen_rtx_SUBREG (SImode, zeroreg, 0))); |
4e44c1ef JJ |
11368 | offset += 4; |
11369 | } | |
0945b39d | 11370 | if (count & 0x02) |
4e44c1ef JJ |
11371 | { |
11372 | rtx mem = adjust_automodify_address_nv (dst, HImode, destreg, | |
11373 | offset); | |
11374 | emit_insn (gen_strset (destreg, mem, | |
0945b39d | 11375 | gen_rtx_SUBREG (HImode, zeroreg, 0))); |
4e44c1ef JJ |
11376 | offset += 2; |
11377 | } | |
0945b39d | 11378 | if (count & 0x01) |
4e44c1ef JJ |
11379 | { |
11380 | rtx mem = adjust_automodify_address_nv (dst, QImode, destreg, | |
11381 | offset); | |
11382 | emit_insn (gen_strset (destreg, mem, | |
0945b39d | 11383 | gen_rtx_SUBREG (QImode, zeroreg, 0))); |
4e44c1ef | 11384 | } |
0945b39d JH |
11385 | } |
11386 | else | |
11387 | { | |
11388 | rtx countreg2; | |
11389 | rtx label = NULL; | |
37ad04a5 JH |
11390 | /* Compute desired alignment of the string operation. */ |
11391 | int desired_alignment = (TARGET_PENTIUMPRO | |
11392 | && (count == 0 || count >= (unsigned int) 260) | |
11393 | ? 8 : UNITS_PER_WORD); | |
0945b39d JH |
11394 | |
11395 | /* In case we don't know anything about the alignment, default to | |
11396 | library version, since it is usually equally fast and result in | |
4977bab6 ZW |
11397 | shorter code. |
11398 | ||
11399 | Also emit call when we know that the count is large and call overhead | |
11400 | will not be important. */ | |
11401 | if (!TARGET_INLINE_ALL_STRINGOPS | |
11402 | && (align < UNITS_PER_WORD || !TARGET_REP_MOVL_OPTIMAL)) | |
0945b39d JH |
11403 | return 0; |
11404 | ||
11405 | if (TARGET_SINGLE_STRINGOP) | |
11406 | emit_insn (gen_cld ()); | |
11407 | ||
11408 | countreg2 = gen_reg_rtx (Pmode); | |
11409 | countreg = copy_to_mode_reg (counter_mode, count_exp); | |
11410 | zeroreg = copy_to_mode_reg (Pmode, const0_rtx); | |
4e44c1ef JJ |
11411 | /* Get rid of MEM_OFFSET, it won't be accurate. */ |
11412 | dst = change_address (dst, BLKmode, destreg); | |
0945b39d | 11413 | |
37ad04a5 | 11414 | if (count == 0 && align < desired_alignment) |
0945b39d JH |
11415 | { |
11416 | label = gen_label_rtx (); | |
37ad04a5 | 11417 | emit_cmp_and_jump_insns (countreg, GEN_INT (desired_alignment - 1), |
d43e0b7d | 11418 | LEU, 0, counter_mode, 1, label); |
0945b39d JH |
11419 | } |
11420 | if (align <= 1) | |
11421 | { | |
11422 | rtx label = ix86_expand_aligntest (destreg, 1); | |
4e44c1ef JJ |
11423 | emit_insn (gen_strset (destreg, dst, |
11424 | gen_rtx_SUBREG (QImode, zeroreg, 0))); | |
0945b39d JH |
11425 | ix86_adjust_counter (countreg, 1); |
11426 | emit_label (label); | |
11427 | LABEL_NUSES (label) = 1; | |
11428 | } | |
11429 | if (align <= 2) | |
11430 | { | |
11431 | rtx label = ix86_expand_aligntest (destreg, 2); | |
4e44c1ef JJ |
11432 | emit_insn (gen_strset (destreg, dst, |
11433 | gen_rtx_SUBREG (HImode, zeroreg, 0))); | |
0945b39d JH |
11434 | ix86_adjust_counter (countreg, 2); |
11435 | emit_label (label); | |
11436 | LABEL_NUSES (label) = 1; | |
11437 | } | |
37ad04a5 | 11438 | if (align <= 4 && desired_alignment > 4) |
0945b39d JH |
11439 | { |
11440 | rtx label = ix86_expand_aligntest (destreg, 4); | |
4e44c1ef JJ |
11441 | emit_insn (gen_strset (destreg, dst, |
11442 | (TARGET_64BIT | |
11443 | ? gen_rtx_SUBREG (SImode, zeroreg, 0) | |
11444 | : zeroreg))); | |
0945b39d JH |
11445 | ix86_adjust_counter (countreg, 4); |
11446 | emit_label (label); | |
11447 | LABEL_NUSES (label) = 1; | |
11448 | } | |
11449 | ||
37ad04a5 JH |
11450 | if (label && desired_alignment > 4 && !TARGET_64BIT) |
11451 | { | |
11452 | emit_label (label); | |
11453 | LABEL_NUSES (label) = 1; | |
11454 | label = NULL_RTX; | |
11455 | } | |
11456 | ||
0945b39d JH |
11457 | if (!TARGET_SINGLE_STRINGOP) |
11458 | emit_insn (gen_cld ()); | |
11459 | if (TARGET_64BIT) | |
11460 | { | |
11461 | emit_insn (gen_lshrdi3 (countreg2, ix86_zero_extend_to_Pmode (countreg), | |
11462 | GEN_INT (3))); | |
4e44c1ef | 11463 | destexp = gen_rtx_ASHIFT (Pmode, countreg2, GEN_INT (3)); |
0945b39d JH |
11464 | } |
11465 | else | |
11466 | { | |
4e44c1ef JJ |
11467 | emit_insn (gen_lshrsi3 (countreg2, countreg, const2_rtx)); |
11468 | destexp = gen_rtx_ASHIFT (Pmode, countreg2, const2_rtx); | |
0945b39d | 11469 | } |
4e44c1ef JJ |
11470 | destexp = gen_rtx_PLUS (Pmode, destexp, destreg); |
11471 | emit_insn (gen_rep_stos (destreg, countreg2, dst, zeroreg, destexp)); | |
11472 | ||
0945b39d JH |
11473 | if (label) |
11474 | { | |
11475 | emit_label (label); | |
11476 | LABEL_NUSES (label) = 1; | |
11477 | } | |
37ad04a5 | 11478 | |
0945b39d | 11479 | if (TARGET_64BIT && align > 4 && count != 0 && (count & 4)) |
4e44c1ef JJ |
11480 | emit_insn (gen_strset (destreg, dst, |
11481 | gen_rtx_SUBREG (SImode, zeroreg, 0))); | |
0945b39d JH |
11482 | if (TARGET_64BIT && (align <= 4 || count == 0)) |
11483 | { | |
79258dce | 11484 | rtx label = ix86_expand_aligntest (countreg, 4); |
4e44c1ef JJ |
11485 | emit_insn (gen_strset (destreg, dst, |
11486 | gen_rtx_SUBREG (SImode, zeroreg, 0))); | |
0945b39d JH |
11487 | emit_label (label); |
11488 | LABEL_NUSES (label) = 1; | |
11489 | } | |
11490 | if (align > 2 && count != 0 && (count & 2)) | |
4e44c1ef JJ |
11491 | emit_insn (gen_strset (destreg, dst, |
11492 | gen_rtx_SUBREG (HImode, zeroreg, 0))); | |
0945b39d JH |
11493 | if (align <= 2 || count == 0) |
11494 | { | |
74411039 | 11495 | rtx label = ix86_expand_aligntest (countreg, 2); |
4e44c1ef JJ |
11496 | emit_insn (gen_strset (destreg, dst, |
11497 | gen_rtx_SUBREG (HImode, zeroreg, 0))); | |
0945b39d JH |
11498 | emit_label (label); |
11499 | LABEL_NUSES (label) = 1; | |
11500 | } | |
11501 | if (align > 1 && count != 0 && (count & 1)) | |
4e44c1ef JJ |
11502 | emit_insn (gen_strset (destreg, dst, |
11503 | gen_rtx_SUBREG (QImode, zeroreg, 0))); | |
0945b39d JH |
11504 | if (align <= 1 || count == 0) |
11505 | { | |
74411039 | 11506 | rtx label = ix86_expand_aligntest (countreg, 1); |
4e44c1ef JJ |
11507 | emit_insn (gen_strset (destreg, dst, |
11508 | gen_rtx_SUBREG (QImode, zeroreg, 0))); | |
0945b39d JH |
11509 | emit_label (label); |
11510 | LABEL_NUSES (label) = 1; | |
11511 | } | |
11512 | } | |
11513 | return 1; | |
11514 | } | |
4e44c1ef | 11515 | |
0945b39d JH |
11516 | /* Expand strlen. */ |
11517 | int | |
b96a374d | 11518 | ix86_expand_strlen (rtx out, rtx src, rtx eoschar, rtx align) |
0945b39d JH |
11519 | { |
11520 | rtx addr, scratch1, scratch2, scratch3, scratch4; | |
11521 | ||
11522 | /* The generic case of strlen expander is long. Avoid it's | |
11523 | expanding unless TARGET_INLINE_ALL_STRINGOPS. */ | |
11524 | ||
11525 | if (TARGET_UNROLL_STRLEN && eoschar == const0_rtx && optimize > 1 | |
11526 | && !TARGET_INLINE_ALL_STRINGOPS | |
11527 | && !optimize_size | |
11528 | && (GET_CODE (align) != CONST_INT || INTVAL (align) < 4)) | |
11529 | return 0; | |
11530 | ||
11531 | addr = force_reg (Pmode, XEXP (src, 0)); | |
11532 | scratch1 = gen_reg_rtx (Pmode); | |
11533 | ||
11534 | if (TARGET_UNROLL_STRLEN && eoschar == const0_rtx && optimize > 1 | |
11535 | && !optimize_size) | |
11536 | { | |
11537 | /* Well it seems that some optimizer does not combine a call like | |
11538 | foo(strlen(bar), strlen(bar)); | |
11539 | when the move and the subtraction is done here. It does calculate | |
11540 | the length just once when these instructions are done inside of | |
11541 | output_strlen_unroll(). But I think since &bar[strlen(bar)] is | |
11542 | often used and I use one fewer register for the lifetime of | |
11543 | output_strlen_unroll() this is better. */ | |
11544 | ||
11545 | emit_move_insn (out, addr); | |
11546 | ||
4e44c1ef | 11547 | ix86_expand_strlensi_unroll_1 (out, src, align); |
0945b39d JH |
11548 | |
11549 | /* strlensi_unroll_1 returns the address of the zero at the end of | |
11550 | the string, like memchr(), so compute the length by subtracting | |
11551 | the start address. */ | |
11552 | if (TARGET_64BIT) | |
11553 | emit_insn (gen_subdi3 (out, out, addr)); | |
11554 | else | |
11555 | emit_insn (gen_subsi3 (out, out, addr)); | |
11556 | } | |
11557 | else | |
11558 | { | |
4e44c1ef | 11559 | rtx unspec; |
0945b39d JH |
11560 | scratch2 = gen_reg_rtx (Pmode); |
11561 | scratch3 = gen_reg_rtx (Pmode); | |
11562 | scratch4 = force_reg (Pmode, constm1_rtx); | |
11563 | ||
11564 | emit_move_insn (scratch3, addr); | |
11565 | eoschar = force_reg (QImode, eoschar); | |
11566 | ||
11567 | emit_insn (gen_cld ()); | |
4e44c1ef JJ |
11568 | src = replace_equiv_address_nv (src, scratch3); |
11569 | ||
11570 | /* If .md starts supporting :P, this can be done in .md. */ | |
11571 | unspec = gen_rtx_UNSPEC (Pmode, gen_rtvec (4, src, eoschar, align, | |
11572 | scratch4), UNSPEC_SCAS); | |
11573 | emit_insn (gen_strlenqi_1 (scratch1, scratch3, unspec)); | |
0945b39d JH |
11574 | if (TARGET_64BIT) |
11575 | { | |
0945b39d JH |
11576 | emit_insn (gen_one_cmpldi2 (scratch2, scratch1)); |
11577 | emit_insn (gen_adddi3 (out, scratch2, constm1_rtx)); | |
11578 | } | |
11579 | else | |
11580 | { | |
0945b39d JH |
11581 | emit_insn (gen_one_cmplsi2 (scratch2, scratch1)); |
11582 | emit_insn (gen_addsi3 (out, scratch2, constm1_rtx)); | |
11583 | } | |
11584 | } | |
11585 | return 1; | |
11586 | } | |
11587 | ||
e075ae69 RH |
11588 | /* Expand the appropriate insns for doing strlen if not just doing |
11589 | repnz; scasb | |
11590 | ||
11591 | out = result, initialized with the start address | |
11592 | align_rtx = alignment of the address. | |
11593 | scratch = scratch register, initialized with the startaddress when | |
77ebd435 | 11594 | not aligned, otherwise undefined |
3f803cd9 | 11595 | |
39e3f58c | 11596 | This is just the body. It needs the initializations mentioned above and |
3f803cd9 SC |
11597 | some address computing at the end. These things are done in i386.md. */ |
11598 | ||
0945b39d | 11599 | static void |
4e44c1ef | 11600 | ix86_expand_strlensi_unroll_1 (rtx out, rtx src, rtx align_rtx) |
3f803cd9 | 11601 | { |
e075ae69 RH |
11602 | int align; |
11603 | rtx tmp; | |
11604 | rtx align_2_label = NULL_RTX; | |
11605 | rtx align_3_label = NULL_RTX; | |
11606 | rtx align_4_label = gen_label_rtx (); | |
11607 | rtx end_0_label = gen_label_rtx (); | |
e075ae69 | 11608 | rtx mem; |
e2e52e1b | 11609 | rtx tmpreg = gen_reg_rtx (SImode); |
0945b39d | 11610 | rtx scratch = gen_reg_rtx (SImode); |
e6e81735 | 11611 | rtx cmp; |
e075ae69 RH |
11612 | |
11613 | align = 0; | |
11614 | if (GET_CODE (align_rtx) == CONST_INT) | |
11615 | align = INTVAL (align_rtx); | |
3f803cd9 | 11616 | |
e9a25f70 | 11617 | /* Loop to check 1..3 bytes for null to get an aligned pointer. */ |
3f803cd9 | 11618 | |
e9a25f70 | 11619 | /* Is there a known alignment and is it less than 4? */ |
e075ae69 | 11620 | if (align < 4) |
3f803cd9 | 11621 | { |
0945b39d JH |
11622 | rtx scratch1 = gen_reg_rtx (Pmode); |
11623 | emit_move_insn (scratch1, out); | |
e9a25f70 | 11624 | /* Is there a known alignment and is it not 2? */ |
e075ae69 | 11625 | if (align != 2) |
3f803cd9 | 11626 | { |
e075ae69 RH |
11627 | align_3_label = gen_label_rtx (); /* Label when aligned to 3-byte */ |
11628 | align_2_label = gen_label_rtx (); /* Label when aligned to 2-byte */ | |
11629 | ||
11630 | /* Leave just the 3 lower bits. */ | |
0945b39d | 11631 | align_rtx = expand_binop (Pmode, and_optab, scratch1, GEN_INT (3), |
e075ae69 RH |
11632 | NULL_RTX, 0, OPTAB_WIDEN); |
11633 | ||
9076b9c1 | 11634 | emit_cmp_and_jump_insns (align_rtx, const0_rtx, EQ, NULL, |
d43e0b7d | 11635 | Pmode, 1, align_4_label); |
60c81c89 | 11636 | emit_cmp_and_jump_insns (align_rtx, const2_rtx, EQ, NULL, |
d43e0b7d | 11637 | Pmode, 1, align_2_label); |
60c81c89 | 11638 | emit_cmp_and_jump_insns (align_rtx, const2_rtx, GTU, NULL, |
d43e0b7d | 11639 | Pmode, 1, align_3_label); |
3f803cd9 SC |
11640 | } |
11641 | else | |
11642 | { | |
e9a25f70 JL |
11643 | /* Since the alignment is 2, we have to check 2 or 0 bytes; |
11644 | check if is aligned to 4 - byte. */ | |
e9a25f70 | 11645 | |
60c81c89 | 11646 | align_rtx = expand_binop (Pmode, and_optab, scratch1, const2_rtx, |
e075ae69 RH |
11647 | NULL_RTX, 0, OPTAB_WIDEN); |
11648 | ||
9076b9c1 | 11649 | emit_cmp_and_jump_insns (align_rtx, const0_rtx, EQ, NULL, |
d43e0b7d | 11650 | Pmode, 1, align_4_label); |
3f803cd9 SC |
11651 | } |
11652 | ||
4e44c1ef | 11653 | mem = change_address (src, QImode, out); |
e9a25f70 | 11654 | |
e075ae69 | 11655 | /* Now compare the bytes. */ |
e9a25f70 | 11656 | |
0f290768 | 11657 | /* Compare the first n unaligned byte on a byte per byte basis. */ |
9076b9c1 | 11658 | emit_cmp_and_jump_insns (mem, const0_rtx, EQ, NULL, |
d43e0b7d | 11659 | QImode, 1, end_0_label); |
3f803cd9 | 11660 | |
0f290768 | 11661 | /* Increment the address. */ |
0945b39d JH |
11662 | if (TARGET_64BIT) |
11663 | emit_insn (gen_adddi3 (out, out, const1_rtx)); | |
11664 | else | |
11665 | emit_insn (gen_addsi3 (out, out, const1_rtx)); | |
e9a25f70 | 11666 | |
e075ae69 RH |
11667 | /* Not needed with an alignment of 2 */ |
11668 | if (align != 2) | |
11669 | { | |
11670 | emit_label (align_2_label); | |
3f803cd9 | 11671 | |
d43e0b7d RK |
11672 | emit_cmp_and_jump_insns (mem, const0_rtx, EQ, NULL, QImode, 1, |
11673 | end_0_label); | |
e075ae69 | 11674 | |
0945b39d JH |
11675 | if (TARGET_64BIT) |
11676 | emit_insn (gen_adddi3 (out, out, const1_rtx)); | |
11677 | else | |
11678 | emit_insn (gen_addsi3 (out, out, const1_rtx)); | |
e075ae69 RH |
11679 | |
11680 | emit_label (align_3_label); | |
11681 | } | |
11682 | ||
d43e0b7d RK |
11683 | emit_cmp_and_jump_insns (mem, const0_rtx, EQ, NULL, QImode, 1, |
11684 | end_0_label); | |
e075ae69 | 11685 | |
0945b39d JH |
11686 | if (TARGET_64BIT) |
11687 | emit_insn (gen_adddi3 (out, out, const1_rtx)); | |
11688 | else | |
11689 | emit_insn (gen_addsi3 (out, out, const1_rtx)); | |
3f803cd9 SC |
11690 | } |
11691 | ||
e075ae69 RH |
11692 | /* Generate loop to check 4 bytes at a time. It is not a good idea to |
11693 | align this loop. It gives only huge programs, but does not help to | |
11694 | speed up. */ | |
11695 | emit_label (align_4_label); | |
3f803cd9 | 11696 | |
4e44c1ef | 11697 | mem = change_address (src, SImode, out); |
e075ae69 | 11698 | emit_move_insn (scratch, mem); |
0945b39d JH |
11699 | if (TARGET_64BIT) |
11700 | emit_insn (gen_adddi3 (out, out, GEN_INT (4))); | |
11701 | else | |
11702 | emit_insn (gen_addsi3 (out, out, GEN_INT (4))); | |
e075ae69 | 11703 | |
e2e52e1b JH |
11704 | /* This formula yields a nonzero result iff one of the bytes is zero. |
11705 | This saves three branches inside loop and many cycles. */ | |
11706 | ||
11707 | emit_insn (gen_addsi3 (tmpreg, scratch, GEN_INT (-0x01010101))); | |
11708 | emit_insn (gen_one_cmplsi2 (scratch, scratch)); | |
11709 | emit_insn (gen_andsi3 (tmpreg, tmpreg, scratch)); | |
7471a1f0 | 11710 | emit_insn (gen_andsi3 (tmpreg, tmpreg, |
d8bf17f9 | 11711 | gen_int_mode (0x80808080, SImode))); |
d43e0b7d RK |
11712 | emit_cmp_and_jump_insns (tmpreg, const0_rtx, EQ, 0, SImode, 1, |
11713 | align_4_label); | |
e2e52e1b JH |
11714 | |
11715 | if (TARGET_CMOVE) | |
11716 | { | |
11717 | rtx reg = gen_reg_rtx (SImode); | |
0945b39d | 11718 | rtx reg2 = gen_reg_rtx (Pmode); |
e2e52e1b JH |
11719 | emit_move_insn (reg, tmpreg); |
11720 | emit_insn (gen_lshrsi3 (reg, reg, GEN_INT (16))); | |
11721 | ||
0f290768 | 11722 | /* If zero is not in the first two bytes, move two bytes forward. */ |
16189740 | 11723 | emit_insn (gen_testsi_ccno_1 (tmpreg, GEN_INT (0x8080))); |
e2e52e1b JH |
11724 | tmp = gen_rtx_REG (CCNOmode, FLAGS_REG); |
11725 | tmp = gen_rtx_EQ (VOIDmode, tmp, const0_rtx); | |
11726 | emit_insn (gen_rtx_SET (VOIDmode, tmpreg, | |
11727 | gen_rtx_IF_THEN_ELSE (SImode, tmp, | |
77ebd435 AJ |
11728 | reg, |
11729 | tmpreg))); | |
e2e52e1b | 11730 | /* Emit lea manually to avoid clobbering of flags. */ |
0945b39d | 11731 | emit_insn (gen_rtx_SET (SImode, reg2, |
60c81c89 | 11732 | gen_rtx_PLUS (Pmode, out, const2_rtx))); |
e2e52e1b JH |
11733 | |
11734 | tmp = gen_rtx_REG (CCNOmode, FLAGS_REG); | |
11735 | tmp = gen_rtx_EQ (VOIDmode, tmp, const0_rtx); | |
11736 | emit_insn (gen_rtx_SET (VOIDmode, out, | |
0945b39d | 11737 | gen_rtx_IF_THEN_ELSE (Pmode, tmp, |
a4f31c00 AJ |
11738 | reg2, |
11739 | out))); | |
e2e52e1b JH |
11740 | |
11741 | } | |
11742 | else | |
11743 | { | |
11744 | rtx end_2_label = gen_label_rtx (); | |
11745 | /* Is zero in the first two bytes? */ | |
11746 | ||
16189740 | 11747 | emit_insn (gen_testsi_ccno_1 (tmpreg, GEN_INT (0x8080))); |
e2e52e1b JH |
11748 | tmp = gen_rtx_REG (CCNOmode, FLAGS_REG); |
11749 | tmp = gen_rtx_NE (VOIDmode, tmp, const0_rtx); | |
11750 | tmp = gen_rtx_IF_THEN_ELSE (VOIDmode, tmp, | |
11751 | gen_rtx_LABEL_REF (VOIDmode, end_2_label), | |
11752 | pc_rtx); | |
11753 | tmp = emit_jump_insn (gen_rtx_SET (VOIDmode, pc_rtx, tmp)); | |
11754 | JUMP_LABEL (tmp) = end_2_label; | |
11755 | ||
0f290768 | 11756 | /* Not in the first two. Move two bytes forward. */ |
e2e52e1b | 11757 | emit_insn (gen_lshrsi3 (tmpreg, tmpreg, GEN_INT (16))); |
0945b39d | 11758 | if (TARGET_64BIT) |
60c81c89 | 11759 | emit_insn (gen_adddi3 (out, out, const2_rtx)); |
0945b39d | 11760 | else |
60c81c89 | 11761 | emit_insn (gen_addsi3 (out, out, const2_rtx)); |
e2e52e1b JH |
11762 | |
11763 | emit_label (end_2_label); | |
11764 | ||
11765 | } | |
11766 | ||
0f290768 | 11767 | /* Avoid branch in fixing the byte. */ |
e2e52e1b | 11768 | tmpreg = gen_lowpart (QImode, tmpreg); |
7e08e190 | 11769 | emit_insn (gen_addqi3_cc (tmpreg, tmpreg, tmpreg)); |
e6e81735 | 11770 | cmp = gen_rtx_LTU (Pmode, gen_rtx_REG (CCmode, 17), const0_rtx); |
0945b39d | 11771 | if (TARGET_64BIT) |
e6e81735 | 11772 | emit_insn (gen_subdi3_carry_rex64 (out, out, GEN_INT (3), cmp)); |
0945b39d | 11773 | else |
e6e81735 | 11774 | emit_insn (gen_subsi3_carry (out, out, GEN_INT (3), cmp)); |
e075ae69 RH |
11775 | |
11776 | emit_label (end_0_label); | |
11777 | } | |
0e07aff3 RH |
11778 | |
11779 | void | |
0f901c4c SH |
11780 | ix86_expand_call (rtx retval, rtx fnaddr, rtx callarg1, |
11781 | rtx callarg2 ATTRIBUTE_UNUSED, | |
b96a374d | 11782 | rtx pop, int sibcall) |
0e07aff3 RH |
11783 | { |
11784 | rtx use = NULL, call; | |
11785 | ||
11786 | if (pop == const0_rtx) | |
11787 | pop = NULL; | |
11788 | if (TARGET_64BIT && pop) | |
11789 | abort (); | |
11790 | ||
b069de3b SS |
11791 | #if TARGET_MACHO |
11792 | if (flag_pic && GET_CODE (XEXP (fnaddr, 0)) == SYMBOL_REF) | |
11793 | fnaddr = machopic_indirect_call_target (fnaddr); | |
11794 | #else | |
0e07aff3 RH |
11795 | /* Static functions and indirect calls don't need the pic register. */ |
11796 | if (! TARGET_64BIT && flag_pic | |
11797 | && GET_CODE (XEXP (fnaddr, 0)) == SYMBOL_REF | |
12969f45 | 11798 | && ! SYMBOL_REF_LOCAL_P (XEXP (fnaddr, 0))) |
66edd3b4 | 11799 | use_reg (&use, pic_offset_table_rtx); |
0e07aff3 RH |
11800 | |
11801 | if (TARGET_64BIT && INTVAL (callarg2) >= 0) | |
11802 | { | |
11803 | rtx al = gen_rtx_REG (QImode, 0); | |
11804 | emit_move_insn (al, callarg2); | |
11805 | use_reg (&use, al); | |
11806 | } | |
b069de3b | 11807 | #endif /* TARGET_MACHO */ |
0e07aff3 RH |
11808 | |
11809 | if (! call_insn_operand (XEXP (fnaddr, 0), Pmode)) | |
11810 | { | |
11811 | fnaddr = copy_to_mode_reg (Pmode, XEXP (fnaddr, 0)); | |
11812 | fnaddr = gen_rtx_MEM (QImode, fnaddr); | |
11813 | } | |
4977bab6 ZW |
11814 | if (sibcall && TARGET_64BIT |
11815 | && !constant_call_address_operand (XEXP (fnaddr, 0), Pmode)) | |
11816 | { | |
11817 | rtx addr; | |
11818 | addr = copy_to_mode_reg (Pmode, XEXP (fnaddr, 0)); | |
b19ee4bd | 11819 | fnaddr = gen_rtx_REG (Pmode, FIRST_REX_INT_REG + 3 /* R11 */); |
4977bab6 ZW |
11820 | emit_move_insn (fnaddr, addr); |
11821 | fnaddr = gen_rtx_MEM (QImode, fnaddr); | |
11822 | } | |
0e07aff3 RH |
11823 | |
11824 | call = gen_rtx_CALL (VOIDmode, fnaddr, callarg1); | |
11825 | if (retval) | |
11826 | call = gen_rtx_SET (VOIDmode, retval, call); | |
11827 | if (pop) | |
11828 | { | |
11829 | pop = gen_rtx_PLUS (Pmode, stack_pointer_rtx, pop); | |
11830 | pop = gen_rtx_SET (VOIDmode, stack_pointer_rtx, pop); | |
11831 | call = gen_rtx_PARALLEL (VOIDmode, gen_rtvec (2, call, pop)); | |
11832 | } | |
11833 | ||
11834 | call = emit_call_insn (call); | |
11835 | if (use) | |
11836 | CALL_INSN_FUNCTION_USAGE (call) = use; | |
11837 | } | |
fce5a9f2 | 11838 | |
e075ae69 | 11839 | \f |
e075ae69 RH |
11840 | /* Clear stack slot assignments remembered from previous functions. |
11841 | This is called from INIT_EXPANDERS once before RTL is emitted for each | |
11842 | function. */ | |
11843 | ||
e2500fed | 11844 | static struct machine_function * |
b96a374d | 11845 | ix86_init_machine_status (void) |
37b15744 | 11846 | { |
d7394366 JH |
11847 | struct machine_function *f; |
11848 | ||
11849 | f = ggc_alloc_cleared (sizeof (struct machine_function)); | |
11850 | f->use_fast_prologue_epilogue_nregs = -1; | |
8330e2c6 AJ |
11851 | |
11852 | return f; | |
1526a060 BS |
11853 | } |
11854 | ||
e075ae69 RH |
11855 | /* Return a MEM corresponding to a stack slot with mode MODE. |
11856 | Allocate a new slot if necessary. | |
11857 | ||
11858 | The RTL for a function can have several slots available: N is | |
11859 | which slot to use. */ | |
11860 | ||
11861 | rtx | |
b96a374d | 11862 | assign_386_stack_local (enum machine_mode mode, int n) |
e075ae69 | 11863 | { |
ddb0ae00 ZW |
11864 | struct stack_local_entry *s; |
11865 | ||
e075ae69 RH |
11866 | if (n < 0 || n >= MAX_386_STACK_LOCALS) |
11867 | abort (); | |
11868 | ||
ddb0ae00 ZW |
11869 | for (s = ix86_stack_locals; s; s = s->next) |
11870 | if (s->mode == mode && s->n == n) | |
11871 | return s->rtl; | |
11872 | ||
11873 | s = (struct stack_local_entry *) | |
11874 | ggc_alloc (sizeof (struct stack_local_entry)); | |
11875 | s->n = n; | |
11876 | s->mode = mode; | |
11877 | s->rtl = assign_stack_local (mode, GET_MODE_SIZE (mode), 0); | |
e075ae69 | 11878 | |
ddb0ae00 ZW |
11879 | s->next = ix86_stack_locals; |
11880 | ix86_stack_locals = s; | |
11881 | return s->rtl; | |
e075ae69 | 11882 | } |
f996902d RH |
11883 | |
11884 | /* Construct the SYMBOL_REF for the tls_get_addr function. */ | |
11885 | ||
e2500fed | 11886 | static GTY(()) rtx ix86_tls_symbol; |
f996902d | 11887 | rtx |
b96a374d | 11888 | ix86_tls_get_addr (void) |
f996902d | 11889 | { |
f996902d | 11890 | |
e2500fed | 11891 | if (!ix86_tls_symbol) |
f996902d | 11892 | { |
75d38379 JJ |
11893 | ix86_tls_symbol = gen_rtx_SYMBOL_REF (Pmode, |
11894 | (TARGET_GNU_TLS && !TARGET_64BIT) | |
11895 | ? "___tls_get_addr" | |
11896 | : "__tls_get_addr"); | |
f996902d RH |
11897 | } |
11898 | ||
e2500fed | 11899 | return ix86_tls_symbol; |
f996902d | 11900 | } |
e075ae69 RH |
11901 | \f |
11902 | /* Calculate the length of the memory address in the instruction | |
11903 | encoding. Does not include the one-byte modrm, opcode, or prefix. */ | |
11904 | ||
11905 | static int | |
b96a374d | 11906 | memory_address_length (rtx addr) |
e075ae69 RH |
11907 | { |
11908 | struct ix86_address parts; | |
11909 | rtx base, index, disp; | |
11910 | int len; | |
11911 | ||
11912 | if (GET_CODE (addr) == PRE_DEC | |
0d7d98ee JH |
11913 | || GET_CODE (addr) == POST_INC |
11914 | || GET_CODE (addr) == PRE_MODIFY | |
11915 | || GET_CODE (addr) == POST_MODIFY) | |
e075ae69 | 11916 | return 0; |
3f803cd9 | 11917 | |
e075ae69 RH |
11918 | if (! ix86_decompose_address (addr, &parts)) |
11919 | abort (); | |
3f803cd9 | 11920 | |
e075ae69 RH |
11921 | base = parts.base; |
11922 | index = parts.index; | |
11923 | disp = parts.disp; | |
11924 | len = 0; | |
3f803cd9 | 11925 | |
7b65ed54 EB |
11926 | /* Rule of thumb: |
11927 | - esp as the base always wants an index, | |
11928 | - ebp as the base always wants a displacement. */ | |
11929 | ||
e075ae69 RH |
11930 | /* Register Indirect. */ |
11931 | if (base && !index && !disp) | |
11932 | { | |
7b65ed54 EB |
11933 | /* esp (for its index) and ebp (for its displacement) need |
11934 | the two-byte modrm form. */ | |
e075ae69 RH |
11935 | if (addr == stack_pointer_rtx |
11936 | || addr == arg_pointer_rtx | |
564d80f4 JH |
11937 | || addr == frame_pointer_rtx |
11938 | || addr == hard_frame_pointer_rtx) | |
e075ae69 | 11939 | len = 1; |
3f803cd9 | 11940 | } |
e9a25f70 | 11941 | |
e075ae69 RH |
11942 | /* Direct Addressing. */ |
11943 | else if (disp && !base && !index) | |
11944 | len = 4; | |
11945 | ||
3f803cd9 SC |
11946 | else |
11947 | { | |
e075ae69 RH |
11948 | /* Find the length of the displacement constant. */ |
11949 | if (disp) | |
11950 | { | |
11951 | if (GET_CODE (disp) == CONST_INT | |
9b73c90a EB |
11952 | && CONST_OK_FOR_LETTER_P (INTVAL (disp), 'K') |
11953 | && base) | |
e075ae69 RH |
11954 | len = 1; |
11955 | else | |
11956 | len = 4; | |
11957 | } | |
7b65ed54 EB |
11958 | /* ebp always wants a displacement. */ |
11959 | else if (base == hard_frame_pointer_rtx) | |
11960 | len = 1; | |
3f803cd9 | 11961 | |
43f3a59d | 11962 | /* An index requires the two-byte modrm form.... */ |
7b65ed54 EB |
11963 | if (index |
11964 | /* ...like esp, which always wants an index. */ | |
11965 | || base == stack_pointer_rtx | |
11966 | || base == arg_pointer_rtx | |
11967 | || base == frame_pointer_rtx) | |
e075ae69 | 11968 | len += 1; |
3f803cd9 SC |
11969 | } |
11970 | ||
e075ae69 RH |
11971 | return len; |
11972 | } | |
79325812 | 11973 | |
5bf0ebab RH |
11974 | /* Compute default value for "length_immediate" attribute. When SHORTFORM |
11975 | is set, expect that insn have 8bit immediate alternative. */ | |
e075ae69 | 11976 | int |
b96a374d | 11977 | ix86_attr_length_immediate_default (rtx insn, int shortform) |
e075ae69 | 11978 | { |
6ef67412 JH |
11979 | int len = 0; |
11980 | int i; | |
6c698a6d | 11981 | extract_insn_cached (insn); |
6ef67412 JH |
11982 | for (i = recog_data.n_operands - 1; i >= 0; --i) |
11983 | if (CONSTANT_P (recog_data.operand[i])) | |
3071fab5 | 11984 | { |
6ef67412 | 11985 | if (len) |
3071fab5 | 11986 | abort (); |
6ef67412 JH |
11987 | if (shortform |
11988 | && GET_CODE (recog_data.operand[i]) == CONST_INT | |
11989 | && CONST_OK_FOR_LETTER_P (INTVAL (recog_data.operand[i]), 'K')) | |
11990 | len = 1; | |
11991 | else | |
11992 | { | |
11993 | switch (get_attr_mode (insn)) | |
11994 | { | |
11995 | case MODE_QI: | |
11996 | len+=1; | |
11997 | break; | |
11998 | case MODE_HI: | |
11999 | len+=2; | |
12000 | break; | |
12001 | case MODE_SI: | |
12002 | len+=4; | |
12003 | break; | |
14f73b5a JH |
12004 | /* Immediates for DImode instructions are encoded as 32bit sign extended values. */ |
12005 | case MODE_DI: | |
12006 | len+=4; | |
12007 | break; | |
6ef67412 | 12008 | default: |
c725bd79 | 12009 | fatal_insn ("unknown insn mode", insn); |
6ef67412 JH |
12010 | } |
12011 | } | |
3071fab5 | 12012 | } |
6ef67412 JH |
12013 | return len; |
12014 | } | |
12015 | /* Compute default value for "length_address" attribute. */ | |
12016 | int | |
b96a374d | 12017 | ix86_attr_length_address_default (rtx insn) |
6ef67412 JH |
12018 | { |
12019 | int i; | |
9b73c90a EB |
12020 | |
12021 | if (get_attr_type (insn) == TYPE_LEA) | |
12022 | { | |
12023 | rtx set = PATTERN (insn); | |
12024 | if (GET_CODE (set) == SET) | |
12025 | ; | |
12026 | else if (GET_CODE (set) == PARALLEL | |
12027 | && GET_CODE (XVECEXP (set, 0, 0)) == SET) | |
12028 | set = XVECEXP (set, 0, 0); | |
12029 | else | |
12030 | { | |
12031 | #ifdef ENABLE_CHECKING | |
12032 | abort (); | |
12033 | #endif | |
12034 | return 0; | |
12035 | } | |
12036 | ||
12037 | return memory_address_length (SET_SRC (set)); | |
12038 | } | |
12039 | ||
6c698a6d | 12040 | extract_insn_cached (insn); |
1ccbefce RH |
12041 | for (i = recog_data.n_operands - 1; i >= 0; --i) |
12042 | if (GET_CODE (recog_data.operand[i]) == MEM) | |
e075ae69 | 12043 | { |
6ef67412 | 12044 | return memory_address_length (XEXP (recog_data.operand[i], 0)); |
e075ae69 RH |
12045 | break; |
12046 | } | |
6ef67412 | 12047 | return 0; |
3f803cd9 | 12048 | } |
e075ae69 RH |
12049 | \f |
12050 | /* Return the maximum number of instructions a cpu can issue. */ | |
b657fc39 | 12051 | |
c237e94a | 12052 | static int |
b96a374d | 12053 | ix86_issue_rate (void) |
b657fc39 | 12054 | { |
9e555526 | 12055 | switch (ix86_tune) |
b657fc39 | 12056 | { |
e075ae69 RH |
12057 | case PROCESSOR_PENTIUM: |
12058 | case PROCESSOR_K6: | |
12059 | return 2; | |
79325812 | 12060 | |
e075ae69 | 12061 | case PROCESSOR_PENTIUMPRO: |
b4e89e2d JH |
12062 | case PROCESSOR_PENTIUM4: |
12063 | case PROCESSOR_ATHLON: | |
4977bab6 | 12064 | case PROCESSOR_K8: |
e075ae69 | 12065 | return 3; |
b657fc39 | 12066 | |
b657fc39 | 12067 | default: |
e075ae69 | 12068 | return 1; |
b657fc39 | 12069 | } |
b657fc39 L |
12070 | } |
12071 | ||
e075ae69 RH |
12072 | /* A subroutine of ix86_adjust_cost -- return true iff INSN reads flags set |
12073 | by DEP_INSN and nothing set by DEP_INSN. */ | |
b657fc39 | 12074 | |
e075ae69 | 12075 | static int |
b96a374d | 12076 | ix86_flags_dependant (rtx insn, rtx dep_insn, enum attr_type insn_type) |
e075ae69 RH |
12077 | { |
12078 | rtx set, set2; | |
b657fc39 | 12079 | |
e075ae69 RH |
12080 | /* Simplify the test for uninteresting insns. */ |
12081 | if (insn_type != TYPE_SETCC | |
12082 | && insn_type != TYPE_ICMOV | |
12083 | && insn_type != TYPE_FCMOV | |
12084 | && insn_type != TYPE_IBR) | |
12085 | return 0; | |
b657fc39 | 12086 | |
e075ae69 RH |
12087 | if ((set = single_set (dep_insn)) != 0) |
12088 | { | |
12089 | set = SET_DEST (set); | |
12090 | set2 = NULL_RTX; | |
12091 | } | |
12092 | else if (GET_CODE (PATTERN (dep_insn)) == PARALLEL | |
12093 | && XVECLEN (PATTERN (dep_insn), 0) == 2 | |
12094 | && GET_CODE (XVECEXP (PATTERN (dep_insn), 0, 0)) == SET | |
12095 | && GET_CODE (XVECEXP (PATTERN (dep_insn), 0, 1)) == SET) | |
12096 | { | |
12097 | set = SET_DEST (XVECEXP (PATTERN (dep_insn), 0, 0)); | |
12098 | set2 = SET_DEST (XVECEXP (PATTERN (dep_insn), 0, 0)); | |
12099 | } | |
78a0d70c ZW |
12100 | else |
12101 | return 0; | |
b657fc39 | 12102 | |
78a0d70c ZW |
12103 | if (GET_CODE (set) != REG || REGNO (set) != FLAGS_REG) |
12104 | return 0; | |
b657fc39 | 12105 | |
f5143c46 | 12106 | /* This test is true if the dependent insn reads the flags but |
78a0d70c ZW |
12107 | not any other potentially set register. */ |
12108 | if (!reg_overlap_mentioned_p (set, PATTERN (insn))) | |
12109 | return 0; | |
12110 | ||
12111 | if (set2 && reg_overlap_mentioned_p (set2, PATTERN (insn))) | |
12112 | return 0; | |
12113 | ||
12114 | return 1; | |
e075ae69 | 12115 | } |
b657fc39 | 12116 | |
e075ae69 RH |
12117 | /* A subroutine of ix86_adjust_cost -- return true iff INSN has a memory |
12118 | address with operands set by DEP_INSN. */ | |
12119 | ||
12120 | static int | |
b96a374d | 12121 | ix86_agi_dependant (rtx insn, rtx dep_insn, enum attr_type insn_type) |
e075ae69 RH |
12122 | { |
12123 | rtx addr; | |
12124 | ||
6ad48e84 JH |
12125 | if (insn_type == TYPE_LEA |
12126 | && TARGET_PENTIUM) | |
5fbdde42 RH |
12127 | { |
12128 | addr = PATTERN (insn); | |
12129 | if (GET_CODE (addr) == SET) | |
12130 | ; | |
12131 | else if (GET_CODE (addr) == PARALLEL | |
12132 | && GET_CODE (XVECEXP (addr, 0, 0)) == SET) | |
12133 | addr = XVECEXP (addr, 0, 0); | |
12134 | else | |
12135 | abort (); | |
12136 | addr = SET_SRC (addr); | |
12137 | } | |
e075ae69 RH |
12138 | else |
12139 | { | |
12140 | int i; | |
6c698a6d | 12141 | extract_insn_cached (insn); |
1ccbefce RH |
12142 | for (i = recog_data.n_operands - 1; i >= 0; --i) |
12143 | if (GET_CODE (recog_data.operand[i]) == MEM) | |
e075ae69 | 12144 | { |
1ccbefce | 12145 | addr = XEXP (recog_data.operand[i], 0); |
e075ae69 RH |
12146 | goto found; |
12147 | } | |
12148 | return 0; | |
12149 | found:; | |
b657fc39 L |
12150 | } |
12151 | ||
e075ae69 | 12152 | return modified_in_p (addr, dep_insn); |
b657fc39 | 12153 | } |
a269a03c | 12154 | |
c237e94a | 12155 | static int |
b96a374d | 12156 | ix86_adjust_cost (rtx insn, rtx link, rtx dep_insn, int cost) |
a269a03c | 12157 | { |
e075ae69 | 12158 | enum attr_type insn_type, dep_insn_type; |
6ad48e84 | 12159 | enum attr_memory memory, dep_memory; |
e075ae69 | 12160 | rtx set, set2; |
9b00189f | 12161 | int dep_insn_code_number; |
a269a03c | 12162 | |
d1f87653 | 12163 | /* Anti and output dependencies have zero cost on all CPUs. */ |
e075ae69 | 12164 | if (REG_NOTE_KIND (link) != 0) |
309ada50 | 12165 | return 0; |
a269a03c | 12166 | |
9b00189f JH |
12167 | dep_insn_code_number = recog_memoized (dep_insn); |
12168 | ||
e075ae69 | 12169 | /* If we can't recognize the insns, we can't really do anything. */ |
9b00189f | 12170 | if (dep_insn_code_number < 0 || recog_memoized (insn) < 0) |
e075ae69 | 12171 | return cost; |
a269a03c | 12172 | |
1c71e60e JH |
12173 | insn_type = get_attr_type (insn); |
12174 | dep_insn_type = get_attr_type (dep_insn); | |
9b00189f | 12175 | |
9e555526 | 12176 | switch (ix86_tune) |
a269a03c JC |
12177 | { |
12178 | case PROCESSOR_PENTIUM: | |
e075ae69 RH |
12179 | /* Address Generation Interlock adds a cycle of latency. */ |
12180 | if (ix86_agi_dependant (insn, dep_insn, insn_type)) | |
12181 | cost += 1; | |
12182 | ||
12183 | /* ??? Compares pair with jump/setcc. */ | |
12184 | if (ix86_flags_dependant (insn, dep_insn, insn_type)) | |
12185 | cost = 0; | |
12186 | ||
d1f87653 | 12187 | /* Floating point stores require value to be ready one cycle earlier. */ |
0f290768 | 12188 | if (insn_type == TYPE_FMOV |
e075ae69 RH |
12189 | && get_attr_memory (insn) == MEMORY_STORE |
12190 | && !ix86_agi_dependant (insn, dep_insn, insn_type)) | |
12191 | cost += 1; | |
12192 | break; | |
a269a03c | 12193 | |
e075ae69 | 12194 | case PROCESSOR_PENTIUMPRO: |
6ad48e84 JH |
12195 | memory = get_attr_memory (insn); |
12196 | dep_memory = get_attr_memory (dep_insn); | |
12197 | ||
0f290768 | 12198 | /* Since we can't represent delayed latencies of load+operation, |
e075ae69 RH |
12199 | increase the cost here for non-imov insns. */ |
12200 | if (dep_insn_type != TYPE_IMOV | |
6ad48e84 JH |
12201 | && dep_insn_type != TYPE_FMOV |
12202 | && (dep_memory == MEMORY_LOAD || dep_memory == MEMORY_BOTH)) | |
e075ae69 RH |
12203 | cost += 1; |
12204 | ||
12205 | /* INT->FP conversion is expensive. */ | |
12206 | if (get_attr_fp_int_src (dep_insn)) | |
12207 | cost += 5; | |
12208 | ||
12209 | /* There is one cycle extra latency between an FP op and a store. */ | |
12210 | if (insn_type == TYPE_FMOV | |
12211 | && (set = single_set (dep_insn)) != NULL_RTX | |
12212 | && (set2 = single_set (insn)) != NULL_RTX | |
12213 | && rtx_equal_p (SET_DEST (set), SET_SRC (set2)) | |
12214 | && GET_CODE (SET_DEST (set2)) == MEM) | |
12215 | cost += 1; | |
6ad48e84 JH |
12216 | |
12217 | /* Show ability of reorder buffer to hide latency of load by executing | |
12218 | in parallel with previous instruction in case | |
12219 | previous instruction is not needed to compute the address. */ | |
12220 | if ((memory == MEMORY_LOAD || memory == MEMORY_BOTH) | |
12221 | && !ix86_agi_dependant (insn, dep_insn, insn_type)) | |
b96a374d | 12222 | { |
6ad48e84 JH |
12223 | /* Claim moves to take one cycle, as core can issue one load |
12224 | at time and the next load can start cycle later. */ | |
12225 | if (dep_insn_type == TYPE_IMOV | |
12226 | || dep_insn_type == TYPE_FMOV) | |
12227 | cost = 1; | |
12228 | else if (cost > 1) | |
12229 | cost--; | |
12230 | } | |
e075ae69 | 12231 | break; |
a269a03c | 12232 | |
e075ae69 | 12233 | case PROCESSOR_K6: |
6ad48e84 JH |
12234 | memory = get_attr_memory (insn); |
12235 | dep_memory = get_attr_memory (dep_insn); | |
e075ae69 RH |
12236 | /* The esp dependency is resolved before the instruction is really |
12237 | finished. */ | |
12238 | if ((insn_type == TYPE_PUSH || insn_type == TYPE_POP) | |
12239 | && (dep_insn_type == TYPE_PUSH || dep_insn_type == TYPE_POP)) | |
12240 | return 1; | |
a269a03c | 12241 | |
0f290768 | 12242 | /* Since we can't represent delayed latencies of load+operation, |
e075ae69 | 12243 | increase the cost here for non-imov insns. */ |
6ad48e84 | 12244 | if (dep_memory == MEMORY_LOAD || dep_memory == MEMORY_BOTH) |
e075ae69 RH |
12245 | cost += (dep_insn_type != TYPE_IMOV) ? 2 : 1; |
12246 | ||
12247 | /* INT->FP conversion is expensive. */ | |
12248 | if (get_attr_fp_int_src (dep_insn)) | |
12249 | cost += 5; | |
6ad48e84 JH |
12250 | |
12251 | /* Show ability of reorder buffer to hide latency of load by executing | |
12252 | in parallel with previous instruction in case | |
12253 | previous instruction is not needed to compute the address. */ | |
12254 | if ((memory == MEMORY_LOAD || memory == MEMORY_BOTH) | |
12255 | && !ix86_agi_dependant (insn, dep_insn, insn_type)) | |
b96a374d | 12256 | { |
6ad48e84 JH |
12257 | /* Claim moves to take one cycle, as core can issue one load |
12258 | at time and the next load can start cycle later. */ | |
12259 | if (dep_insn_type == TYPE_IMOV | |
12260 | || dep_insn_type == TYPE_FMOV) | |
12261 | cost = 1; | |
12262 | else if (cost > 2) | |
12263 | cost -= 2; | |
12264 | else | |
12265 | cost = 1; | |
12266 | } | |
a14003ee | 12267 | break; |
e075ae69 | 12268 | |
309ada50 | 12269 | case PROCESSOR_ATHLON: |
4977bab6 | 12270 | case PROCESSOR_K8: |
6ad48e84 JH |
12271 | memory = get_attr_memory (insn); |
12272 | dep_memory = get_attr_memory (dep_insn); | |
12273 | ||
6ad48e84 JH |
12274 | /* Show ability of reorder buffer to hide latency of load by executing |
12275 | in parallel with previous instruction in case | |
12276 | previous instruction is not needed to compute the address. */ | |
12277 | if ((memory == MEMORY_LOAD || memory == MEMORY_BOTH) | |
12278 | && !ix86_agi_dependant (insn, dep_insn, insn_type)) | |
b96a374d | 12279 | { |
26f74aa3 JH |
12280 | enum attr_unit unit = get_attr_unit (insn); |
12281 | int loadcost = 3; | |
12282 | ||
12283 | /* Because of the difference between the length of integer and | |
12284 | floating unit pipeline preparation stages, the memory operands | |
b96a374d | 12285 | for floating point are cheaper. |
26f74aa3 | 12286 | |
c51e6d85 | 12287 | ??? For Athlon it the difference is most probably 2. */ |
26f74aa3 JH |
12288 | if (unit == UNIT_INTEGER || unit == UNIT_UNKNOWN) |
12289 | loadcost = 3; | |
12290 | else | |
12291 | loadcost = TARGET_ATHLON ? 2 : 0; | |
12292 | ||
12293 | if (cost >= loadcost) | |
12294 | cost -= loadcost; | |
6ad48e84 JH |
12295 | else |
12296 | cost = 0; | |
12297 | } | |
309ada50 | 12298 | |
a269a03c | 12299 | default: |
a269a03c JC |
12300 | break; |
12301 | } | |
12302 | ||
12303 | return cost; | |
12304 | } | |
0a726ef1 | 12305 | |
e075ae69 RH |
12306 | static union |
12307 | { | |
12308 | struct ppro_sched_data | |
12309 | { | |
12310 | rtx decode[3]; | |
12311 | int issued_this_cycle; | |
12312 | } ppro; | |
12313 | } ix86_sched_data; | |
0a726ef1 | 12314 | |
e075ae69 | 12315 | static enum attr_ppro_uops |
b96a374d | 12316 | ix86_safe_ppro_uops (rtx insn) |
e075ae69 RH |
12317 | { |
12318 | if (recog_memoized (insn) >= 0) | |
12319 | return get_attr_ppro_uops (insn); | |
12320 | else | |
12321 | return PPRO_UOPS_MANY; | |
12322 | } | |
0a726ef1 | 12323 | |
e075ae69 | 12324 | static void |
b96a374d | 12325 | ix86_dump_ppro_packet (FILE *dump) |
0a726ef1 | 12326 | { |
e075ae69 | 12327 | if (ix86_sched_data.ppro.decode[0]) |
0a726ef1 | 12328 | { |
e075ae69 RH |
12329 | fprintf (dump, "PPRO packet: %d", |
12330 | INSN_UID (ix86_sched_data.ppro.decode[0])); | |
12331 | if (ix86_sched_data.ppro.decode[1]) | |
12332 | fprintf (dump, " %d", INSN_UID (ix86_sched_data.ppro.decode[1])); | |
12333 | if (ix86_sched_data.ppro.decode[2]) | |
12334 | fprintf (dump, " %d", INSN_UID (ix86_sched_data.ppro.decode[2])); | |
12335 | fputc ('\n', dump); | |
12336 | } | |
12337 | } | |
0a726ef1 | 12338 | |
e075ae69 | 12339 | /* We're beginning a new block. Initialize data structures as necessary. */ |
0a726ef1 | 12340 | |
c237e94a | 12341 | static void |
b96a374d AJ |
12342 | ix86_sched_init (FILE *dump ATTRIBUTE_UNUSED, |
12343 | int sched_verbose ATTRIBUTE_UNUSED, | |
12344 | int veclen ATTRIBUTE_UNUSED) | |
e075ae69 RH |
12345 | { |
12346 | memset (&ix86_sched_data, 0, sizeof (ix86_sched_data)); | |
12347 | } | |
12348 | ||
12349 | /* Shift INSN to SLOT, and shift everything else down. */ | |
12350 | ||
12351 | static void | |
b96a374d | 12352 | ix86_reorder_insn (rtx *insnp, rtx *slot) |
e075ae69 RH |
12353 | { |
12354 | if (insnp != slot) | |
12355 | { | |
12356 | rtx insn = *insnp; | |
0f290768 | 12357 | do |
e075ae69 RH |
12358 | insnp[0] = insnp[1]; |
12359 | while (++insnp != slot); | |
12360 | *insnp = insn; | |
0a726ef1 | 12361 | } |
e075ae69 RH |
12362 | } |
12363 | ||
c6991660 | 12364 | static void |
b96a374d | 12365 | ix86_sched_reorder_ppro (rtx *ready, rtx *e_ready) |
78a0d70c ZW |
12366 | { |
12367 | rtx decode[3]; | |
12368 | enum attr_ppro_uops cur_uops; | |
12369 | int issued_this_cycle; | |
12370 | rtx *insnp; | |
12371 | int i; | |
e075ae69 | 12372 | |
0f290768 | 12373 | /* At this point .ppro.decode contains the state of the three |
78a0d70c | 12374 | decoders from last "cycle". That is, those insns that were |
0f290768 | 12375 | actually independent. But here we're scheduling for the |
78a0d70c ZW |
12376 | decoder, and we may find things that are decodable in the |
12377 | same cycle. */ | |
e075ae69 | 12378 | |
0f290768 | 12379 | memcpy (decode, ix86_sched_data.ppro.decode, sizeof (decode)); |
78a0d70c | 12380 | issued_this_cycle = 0; |
e075ae69 | 12381 | |
78a0d70c ZW |
12382 | insnp = e_ready; |
12383 | cur_uops = ix86_safe_ppro_uops (*insnp); | |
0a726ef1 | 12384 | |
78a0d70c ZW |
12385 | /* If the decoders are empty, and we've a complex insn at the |
12386 | head of the priority queue, let it issue without complaint. */ | |
12387 | if (decode[0] == NULL) | |
12388 | { | |
12389 | if (cur_uops == PPRO_UOPS_MANY) | |
12390 | { | |
12391 | decode[0] = *insnp; | |
12392 | goto ppro_done; | |
12393 | } | |
12394 | ||
12395 | /* Otherwise, search for a 2-4 uop unsn to issue. */ | |
12396 | while (cur_uops != PPRO_UOPS_FEW) | |
12397 | { | |
12398 | if (insnp == ready) | |
12399 | break; | |
12400 | cur_uops = ix86_safe_ppro_uops (*--insnp); | |
12401 | } | |
12402 | ||
12403 | /* If so, move it to the head of the line. */ | |
12404 | if (cur_uops == PPRO_UOPS_FEW) | |
12405 | ix86_reorder_insn (insnp, e_ready); | |
0a726ef1 | 12406 | |
78a0d70c ZW |
12407 | /* Issue the head of the queue. */ |
12408 | issued_this_cycle = 1; | |
12409 | decode[0] = *e_ready--; | |
12410 | } | |
fb693d44 | 12411 | |
78a0d70c ZW |
12412 | /* Look for simple insns to fill in the other two slots. */ |
12413 | for (i = 1; i < 3; ++i) | |
12414 | if (decode[i] == NULL) | |
12415 | { | |
a151daf0 | 12416 | if (ready > e_ready) |
78a0d70c | 12417 | goto ppro_done; |
fb693d44 | 12418 | |
e075ae69 RH |
12419 | insnp = e_ready; |
12420 | cur_uops = ix86_safe_ppro_uops (*insnp); | |
78a0d70c ZW |
12421 | while (cur_uops != PPRO_UOPS_ONE) |
12422 | { | |
12423 | if (insnp == ready) | |
12424 | break; | |
12425 | cur_uops = ix86_safe_ppro_uops (*--insnp); | |
12426 | } | |
fb693d44 | 12427 | |
78a0d70c ZW |
12428 | /* Found one. Move it to the head of the queue and issue it. */ |
12429 | if (cur_uops == PPRO_UOPS_ONE) | |
e075ae69 | 12430 | { |
78a0d70c ZW |
12431 | ix86_reorder_insn (insnp, e_ready); |
12432 | decode[i] = *e_ready--; | |
12433 | issued_this_cycle++; | |
12434 | continue; | |
12435 | } | |
fb693d44 | 12436 | |
78a0d70c ZW |
12437 | /* ??? Didn't find one. Ideally, here we would do a lazy split |
12438 | of 2-uop insns, issue one and queue the other. */ | |
12439 | } | |
fb693d44 | 12440 | |
78a0d70c ZW |
12441 | ppro_done: |
12442 | if (issued_this_cycle == 0) | |
12443 | issued_this_cycle = 1; | |
12444 | ix86_sched_data.ppro.issued_this_cycle = issued_this_cycle; | |
12445 | } | |
fb693d44 | 12446 | |
0f290768 | 12447 | /* We are about to being issuing insns for this clock cycle. |
78a0d70c | 12448 | Override the default sort algorithm to better slot instructions. */ |
c237e94a | 12449 | static int |
b96a374d AJ |
12450 | ix86_sched_reorder (FILE *dump ATTRIBUTE_UNUSED, |
12451 | int sched_verbose ATTRIBUTE_UNUSED, rtx *ready, | |
12452 | int *n_readyp, int clock_var ATTRIBUTE_UNUSED) | |
78a0d70c | 12453 | { |
c237e94a | 12454 | int n_ready = *n_readyp; |
78a0d70c | 12455 | rtx *e_ready = ready + n_ready - 1; |
fb693d44 | 12456 | |
fce5a9f2 | 12457 | /* Make sure to go ahead and initialize key items in |
a151daf0 JL |
12458 | ix86_sched_data if we are not going to bother trying to |
12459 | reorder the ready queue. */ | |
78a0d70c | 12460 | if (n_ready < 2) |
a151daf0 JL |
12461 | { |
12462 | ix86_sched_data.ppro.issued_this_cycle = 1; | |
12463 | goto out; | |
12464 | } | |
e075ae69 | 12465 | |
9e555526 | 12466 | switch (ix86_tune) |
78a0d70c ZW |
12467 | { |
12468 | default: | |
12469 | break; | |
e075ae69 | 12470 | |
78a0d70c ZW |
12471 | case PROCESSOR_PENTIUMPRO: |
12472 | ix86_sched_reorder_ppro (ready, e_ready); | |
e075ae69 | 12473 | break; |
fb693d44 RH |
12474 | } |
12475 | ||
e075ae69 RH |
12476 | out: |
12477 | return ix86_issue_rate (); | |
12478 | } | |
fb693d44 | 12479 | |
e075ae69 RH |
12480 | /* We are about to issue INSN. Return the number of insns left on the |
12481 | ready queue that can be issued this cycle. */ | |
b222082e | 12482 | |
c237e94a | 12483 | static int |
b96a374d AJ |
12484 | ix86_variable_issue (FILE *dump, int sched_verbose, rtx insn, |
12485 | int can_issue_more) | |
e075ae69 RH |
12486 | { |
12487 | int i; | |
9e555526 | 12488 | switch (ix86_tune) |
fb693d44 | 12489 | { |
e075ae69 RH |
12490 | default: |
12491 | return can_issue_more - 1; | |
fb693d44 | 12492 | |
e075ae69 RH |
12493 | case PROCESSOR_PENTIUMPRO: |
12494 | { | |
12495 | enum attr_ppro_uops uops = ix86_safe_ppro_uops (insn); | |
fb693d44 | 12496 | |
e075ae69 RH |
12497 | if (uops == PPRO_UOPS_MANY) |
12498 | { | |
12499 | if (sched_verbose) | |
12500 | ix86_dump_ppro_packet (dump); | |
12501 | ix86_sched_data.ppro.decode[0] = insn; | |
12502 | ix86_sched_data.ppro.decode[1] = NULL; | |
12503 | ix86_sched_data.ppro.decode[2] = NULL; | |
12504 | if (sched_verbose) | |
12505 | ix86_dump_ppro_packet (dump); | |
12506 | ix86_sched_data.ppro.decode[0] = NULL; | |
12507 | } | |
12508 | else if (uops == PPRO_UOPS_FEW) | |
12509 | { | |
12510 | if (sched_verbose) | |
12511 | ix86_dump_ppro_packet (dump); | |
12512 | ix86_sched_data.ppro.decode[0] = insn; | |
12513 | ix86_sched_data.ppro.decode[1] = NULL; | |
12514 | ix86_sched_data.ppro.decode[2] = NULL; | |
12515 | } | |
12516 | else | |
12517 | { | |
12518 | for (i = 0; i < 3; ++i) | |
12519 | if (ix86_sched_data.ppro.decode[i] == NULL) | |
12520 | { | |
12521 | ix86_sched_data.ppro.decode[i] = insn; | |
12522 | break; | |
12523 | } | |
12524 | if (i == 3) | |
12525 | abort (); | |
12526 | if (i == 2) | |
12527 | { | |
12528 | if (sched_verbose) | |
12529 | ix86_dump_ppro_packet (dump); | |
12530 | ix86_sched_data.ppro.decode[0] = NULL; | |
12531 | ix86_sched_data.ppro.decode[1] = NULL; | |
12532 | ix86_sched_data.ppro.decode[2] = NULL; | |
12533 | } | |
12534 | } | |
12535 | } | |
12536 | return --ix86_sched_data.ppro.issued_this_cycle; | |
12537 | } | |
fb693d44 | 12538 | } |
9b690711 RH |
12539 | |
12540 | static int | |
b96a374d | 12541 | ia32_use_dfa_pipeline_interface (void) |
9b690711 | 12542 | { |
4977bab6 | 12543 | if (TARGET_PENTIUM || TARGET_ATHLON_K8) |
9b690711 RH |
12544 | return 1; |
12545 | return 0; | |
12546 | } | |
12547 | ||
12548 | /* How many alternative schedules to try. This should be as wide as the | |
12549 | scheduling freedom in the DFA, but no wider. Making this value too | |
12550 | large results extra work for the scheduler. */ | |
12551 | ||
12552 | static int | |
b96a374d | 12553 | ia32_multipass_dfa_lookahead (void) |
9b690711 | 12554 | { |
9e555526 | 12555 | if (ix86_tune == PROCESSOR_PENTIUM) |
9b690711 RH |
12556 | return 2; |
12557 | else | |
12558 | return 0; | |
12559 | } | |
12560 | ||
0e4970d7 | 12561 | \f |
a7180f70 BS |
12562 | /* Compute the alignment given to a constant that is being placed in memory. |
12563 | EXP is the constant and ALIGN is the alignment that the object would | |
12564 | ordinarily have. | |
12565 | The value of this function is used instead of that alignment to align | |
12566 | the object. */ | |
12567 | ||
12568 | int | |
b96a374d | 12569 | ix86_constant_alignment (tree exp, int align) |
a7180f70 BS |
12570 | { |
12571 | if (TREE_CODE (exp) == REAL_CST) | |
12572 | { | |
12573 | if (TYPE_MODE (TREE_TYPE (exp)) == DFmode && align < 64) | |
12574 | return 64; | |
12575 | else if (ALIGN_MODE_128 (TYPE_MODE (TREE_TYPE (exp))) && align < 128) | |
12576 | return 128; | |
12577 | } | |
4137ba7a JJ |
12578 | else if (!optimize_size && TREE_CODE (exp) == STRING_CST |
12579 | && TREE_STRING_LENGTH (exp) >= 31 && align < BITS_PER_WORD) | |
12580 | return BITS_PER_WORD; | |
a7180f70 BS |
12581 | |
12582 | return align; | |
12583 | } | |
12584 | ||
12585 | /* Compute the alignment for a static variable. | |
12586 | TYPE is the data type, and ALIGN is the alignment that | |
12587 | the object would ordinarily have. The value of this function is used | |
12588 | instead of that alignment to align the object. */ | |
12589 | ||
12590 | int | |
b96a374d | 12591 | ix86_data_alignment (tree type, int align) |
a7180f70 BS |
12592 | { |
12593 | if (AGGREGATE_TYPE_P (type) | |
12594 | && TYPE_SIZE (type) | |
12595 | && TREE_CODE (TYPE_SIZE (type)) == INTEGER_CST | |
12596 | && (TREE_INT_CST_LOW (TYPE_SIZE (type)) >= 256 | |
12597 | || TREE_INT_CST_HIGH (TYPE_SIZE (type))) && align < 256) | |
12598 | return 256; | |
12599 | ||
0d7d98ee JH |
12600 | /* x86-64 ABI requires arrays greater than 16 bytes to be aligned |
12601 | to 16byte boundary. */ | |
12602 | if (TARGET_64BIT) | |
12603 | { | |
12604 | if (AGGREGATE_TYPE_P (type) | |
12605 | && TYPE_SIZE (type) | |
12606 | && TREE_CODE (TYPE_SIZE (type)) == INTEGER_CST | |
12607 | && (TREE_INT_CST_LOW (TYPE_SIZE (type)) >= 128 | |
12608 | || TREE_INT_CST_HIGH (TYPE_SIZE (type))) && align < 128) | |
12609 | return 128; | |
12610 | } | |
12611 | ||
a7180f70 BS |
12612 | if (TREE_CODE (type) == ARRAY_TYPE) |
12613 | { | |
12614 | if (TYPE_MODE (TREE_TYPE (type)) == DFmode && align < 64) | |
12615 | return 64; | |
12616 | if (ALIGN_MODE_128 (TYPE_MODE (TREE_TYPE (type))) && align < 128) | |
12617 | return 128; | |
12618 | } | |
12619 | else if (TREE_CODE (type) == COMPLEX_TYPE) | |
12620 | { | |
0f290768 | 12621 | |
a7180f70 BS |
12622 | if (TYPE_MODE (type) == DCmode && align < 64) |
12623 | return 64; | |
12624 | if (TYPE_MODE (type) == XCmode && align < 128) | |
12625 | return 128; | |
12626 | } | |
12627 | else if ((TREE_CODE (type) == RECORD_TYPE | |
12628 | || TREE_CODE (type) == UNION_TYPE | |
12629 | || TREE_CODE (type) == QUAL_UNION_TYPE) | |
12630 | && TYPE_FIELDS (type)) | |
12631 | { | |
12632 | if (DECL_MODE (TYPE_FIELDS (type)) == DFmode && align < 64) | |
12633 | return 64; | |
12634 | if (ALIGN_MODE_128 (DECL_MODE (TYPE_FIELDS (type))) && align < 128) | |
12635 | return 128; | |
12636 | } | |
12637 | else if (TREE_CODE (type) == REAL_TYPE || TREE_CODE (type) == VECTOR_TYPE | |
12638 | || TREE_CODE (type) == INTEGER_TYPE) | |
12639 | { | |
12640 | if (TYPE_MODE (type) == DFmode && align < 64) | |
12641 | return 64; | |
12642 | if (ALIGN_MODE_128 (TYPE_MODE (type)) && align < 128) | |
12643 | return 128; | |
12644 | } | |
12645 | ||
12646 | return align; | |
12647 | } | |
12648 | ||
12649 | /* Compute the alignment for a local variable. | |
12650 | TYPE is the data type, and ALIGN is the alignment that | |
12651 | the object would ordinarily have. The value of this macro is used | |
12652 | instead of that alignment to align the object. */ | |
12653 | ||
12654 | int | |
b96a374d | 12655 | ix86_local_alignment (tree type, int align) |
a7180f70 | 12656 | { |
0d7d98ee JH |
12657 | /* x86-64 ABI requires arrays greater than 16 bytes to be aligned |
12658 | to 16byte boundary. */ | |
12659 | if (TARGET_64BIT) | |
12660 | { | |
12661 | if (AGGREGATE_TYPE_P (type) | |
12662 | && TYPE_SIZE (type) | |
12663 | && TREE_CODE (TYPE_SIZE (type)) == INTEGER_CST | |
12664 | && (TREE_INT_CST_LOW (TYPE_SIZE (type)) >= 16 | |
12665 | || TREE_INT_CST_HIGH (TYPE_SIZE (type))) && align < 128) | |
12666 | return 128; | |
12667 | } | |
a7180f70 BS |
12668 | if (TREE_CODE (type) == ARRAY_TYPE) |
12669 | { | |
12670 | if (TYPE_MODE (TREE_TYPE (type)) == DFmode && align < 64) | |
12671 | return 64; | |
12672 | if (ALIGN_MODE_128 (TYPE_MODE (TREE_TYPE (type))) && align < 128) | |
12673 | return 128; | |
12674 | } | |
12675 | else if (TREE_CODE (type) == COMPLEX_TYPE) | |
12676 | { | |
12677 | if (TYPE_MODE (type) == DCmode && align < 64) | |
12678 | return 64; | |
12679 | if (TYPE_MODE (type) == XCmode && align < 128) | |
12680 | return 128; | |
12681 | } | |
12682 | else if ((TREE_CODE (type) == RECORD_TYPE | |
12683 | || TREE_CODE (type) == UNION_TYPE | |
12684 | || TREE_CODE (type) == QUAL_UNION_TYPE) | |
12685 | && TYPE_FIELDS (type)) | |
12686 | { | |
12687 | if (DECL_MODE (TYPE_FIELDS (type)) == DFmode && align < 64) | |
12688 | return 64; | |
12689 | if (ALIGN_MODE_128 (DECL_MODE (TYPE_FIELDS (type))) && align < 128) | |
12690 | return 128; | |
12691 | } | |
12692 | else if (TREE_CODE (type) == REAL_TYPE || TREE_CODE (type) == VECTOR_TYPE | |
12693 | || TREE_CODE (type) == INTEGER_TYPE) | |
12694 | { | |
0f290768 | 12695 | |
a7180f70 BS |
12696 | if (TYPE_MODE (type) == DFmode && align < 64) |
12697 | return 64; | |
12698 | if (ALIGN_MODE_128 (TYPE_MODE (type)) && align < 128) | |
12699 | return 128; | |
12700 | } | |
12701 | return align; | |
12702 | } | |
0ed08620 JH |
12703 | \f |
12704 | /* Emit RTL insns to initialize the variable parts of a trampoline. | |
12705 | FNADDR is an RTX for the address of the function's pure code. | |
12706 | CXT is an RTX for the static chain value for the function. */ | |
12707 | void | |
b96a374d | 12708 | x86_initialize_trampoline (rtx tramp, rtx fnaddr, rtx cxt) |
0ed08620 JH |
12709 | { |
12710 | if (!TARGET_64BIT) | |
12711 | { | |
12712 | /* Compute offset from the end of the jmp to the target function. */ | |
12713 | rtx disp = expand_binop (SImode, sub_optab, fnaddr, | |
12714 | plus_constant (tramp, 10), | |
12715 | NULL_RTX, 1, OPTAB_DIRECT); | |
12716 | emit_move_insn (gen_rtx_MEM (QImode, tramp), | |
d8bf17f9 | 12717 | gen_int_mode (0xb9, QImode)); |
0ed08620 JH |
12718 | emit_move_insn (gen_rtx_MEM (SImode, plus_constant (tramp, 1)), cxt); |
12719 | emit_move_insn (gen_rtx_MEM (QImode, plus_constant (tramp, 5)), | |
d8bf17f9 | 12720 | gen_int_mode (0xe9, QImode)); |
0ed08620 JH |
12721 | emit_move_insn (gen_rtx_MEM (SImode, plus_constant (tramp, 6)), disp); |
12722 | } | |
12723 | else | |
12724 | { | |
12725 | int offset = 0; | |
12726 | /* Try to load address using shorter movl instead of movabs. | |
12727 | We may want to support movq for kernel mode, but kernel does not use | |
12728 | trampolines at the moment. */ | |
12729 | if (x86_64_zero_extended_value (fnaddr)) | |
12730 | { | |
12731 | fnaddr = copy_to_mode_reg (DImode, fnaddr); | |
12732 | emit_move_insn (gen_rtx_MEM (HImode, plus_constant (tramp, offset)), | |
d8bf17f9 | 12733 | gen_int_mode (0xbb41, HImode)); |
0ed08620 JH |
12734 | emit_move_insn (gen_rtx_MEM (SImode, plus_constant (tramp, offset + 2)), |
12735 | gen_lowpart (SImode, fnaddr)); | |
12736 | offset += 6; | |
12737 | } | |
12738 | else | |
12739 | { | |
12740 | emit_move_insn (gen_rtx_MEM (HImode, plus_constant (tramp, offset)), | |
d8bf17f9 | 12741 | gen_int_mode (0xbb49, HImode)); |
0ed08620 JH |
12742 | emit_move_insn (gen_rtx_MEM (DImode, plus_constant (tramp, offset + 2)), |
12743 | fnaddr); | |
12744 | offset += 10; | |
12745 | } | |
12746 | /* Load static chain using movabs to r10. */ | |
12747 | emit_move_insn (gen_rtx_MEM (HImode, plus_constant (tramp, offset)), | |
d8bf17f9 | 12748 | gen_int_mode (0xba49, HImode)); |
0ed08620 JH |
12749 | emit_move_insn (gen_rtx_MEM (DImode, plus_constant (tramp, offset + 2)), |
12750 | cxt); | |
12751 | offset += 10; | |
12752 | /* Jump to the r11 */ | |
12753 | emit_move_insn (gen_rtx_MEM (HImode, plus_constant (tramp, offset)), | |
d8bf17f9 | 12754 | gen_int_mode (0xff49, HImode)); |
0ed08620 | 12755 | emit_move_insn (gen_rtx_MEM (QImode, plus_constant (tramp, offset+2)), |
d8bf17f9 | 12756 | gen_int_mode (0xe3, QImode)); |
0ed08620 JH |
12757 | offset += 3; |
12758 | if (offset > TRAMPOLINE_SIZE) | |
b531087a | 12759 | abort (); |
0ed08620 | 12760 | } |
5791cc29 JT |
12761 | |
12762 | #ifdef TRANSFER_FROM_TRAMPOLINE | |
f84d109f | 12763 | emit_library_call (gen_rtx_SYMBOL_REF (Pmode, "__enable_execute_stack"), |
5791cc29 JT |
12764 | LCT_NORMAL, VOIDmode, 1, tramp, Pmode); |
12765 | #endif | |
0ed08620 | 12766 | } |
eeb06b1b | 12767 | \f |
6a2dd09a RS |
12768 | #define def_builtin(MASK, NAME, TYPE, CODE) \ |
12769 | do { \ | |
453ee231 JH |
12770 | if ((MASK) & target_flags \ |
12771 | && (!((MASK) & MASK_64BIT) || TARGET_64BIT)) \ | |
6a2dd09a RS |
12772 | builtin_function ((NAME), (TYPE), (CODE), BUILT_IN_MD, \ |
12773 | NULL, NULL_TREE); \ | |
eeb06b1b | 12774 | } while (0) |
bd793c65 | 12775 | |
bd793c65 BS |
12776 | struct builtin_description |
12777 | { | |
8b60264b KG |
12778 | const unsigned int mask; |
12779 | const enum insn_code icode; | |
12780 | const char *const name; | |
12781 | const enum ix86_builtins code; | |
12782 | const enum rtx_code comparison; | |
12783 | const unsigned int flag; | |
bd793c65 BS |
12784 | }; |
12785 | ||
8b60264b | 12786 | static const struct builtin_description bdesc_comi[] = |
bd793c65 | 12787 | { |
37f22004 L |
12788 | { MASK_SSE, CODE_FOR_sse_comi, "__builtin_ia32_comieq", IX86_BUILTIN_COMIEQSS, UNEQ, 0 }, |
12789 | { MASK_SSE, CODE_FOR_sse_comi, "__builtin_ia32_comilt", IX86_BUILTIN_COMILTSS, UNLT, 0 }, | |
12790 | { MASK_SSE, CODE_FOR_sse_comi, "__builtin_ia32_comile", IX86_BUILTIN_COMILESS, UNLE, 0 }, | |
12791 | { MASK_SSE, CODE_FOR_sse_comi, "__builtin_ia32_comigt", IX86_BUILTIN_COMIGTSS, GT, 0 }, | |
12792 | { MASK_SSE, CODE_FOR_sse_comi, "__builtin_ia32_comige", IX86_BUILTIN_COMIGESS, GE, 0 }, | |
12793 | { MASK_SSE, CODE_FOR_sse_comi, "__builtin_ia32_comineq", IX86_BUILTIN_COMINEQSS, LTGT, 0 }, | |
12794 | { MASK_SSE, CODE_FOR_sse_ucomi, "__builtin_ia32_ucomieq", IX86_BUILTIN_UCOMIEQSS, UNEQ, 0 }, | |
12795 | { MASK_SSE, CODE_FOR_sse_ucomi, "__builtin_ia32_ucomilt", IX86_BUILTIN_UCOMILTSS, UNLT, 0 }, | |
12796 | { MASK_SSE, CODE_FOR_sse_ucomi, "__builtin_ia32_ucomile", IX86_BUILTIN_UCOMILESS, UNLE, 0 }, | |
12797 | { MASK_SSE, CODE_FOR_sse_ucomi, "__builtin_ia32_ucomigt", IX86_BUILTIN_UCOMIGTSS, GT, 0 }, | |
12798 | { MASK_SSE, CODE_FOR_sse_ucomi, "__builtin_ia32_ucomige", IX86_BUILTIN_UCOMIGESS, GE, 0 }, | |
12799 | { MASK_SSE, CODE_FOR_sse_ucomi, "__builtin_ia32_ucomineq", IX86_BUILTIN_UCOMINEQSS, LTGT, 0 }, | |
1194ca05 JH |
12800 | { MASK_SSE2, CODE_FOR_sse2_comi, "__builtin_ia32_comisdeq", IX86_BUILTIN_COMIEQSD, UNEQ, 0 }, |
12801 | { MASK_SSE2, CODE_FOR_sse2_comi, "__builtin_ia32_comisdlt", IX86_BUILTIN_COMILTSD, UNLT, 0 }, | |
12802 | { MASK_SSE2, CODE_FOR_sse2_comi, "__builtin_ia32_comisdle", IX86_BUILTIN_COMILESD, UNLE, 0 }, | |
12803 | { MASK_SSE2, CODE_FOR_sse2_comi, "__builtin_ia32_comisdgt", IX86_BUILTIN_COMIGTSD, GT, 0 }, | |
12804 | { MASK_SSE2, CODE_FOR_sse2_comi, "__builtin_ia32_comisdge", IX86_BUILTIN_COMIGESD, GE, 0 }, | |
12805 | { MASK_SSE2, CODE_FOR_sse2_comi, "__builtin_ia32_comisdneq", IX86_BUILTIN_COMINEQSD, LTGT, 0 }, | |
12806 | { MASK_SSE2, CODE_FOR_sse2_ucomi, "__builtin_ia32_ucomisdeq", IX86_BUILTIN_UCOMIEQSD, UNEQ, 0 }, | |
12807 | { MASK_SSE2, CODE_FOR_sse2_ucomi, "__builtin_ia32_ucomisdlt", IX86_BUILTIN_UCOMILTSD, UNLT, 0 }, | |
12808 | { MASK_SSE2, CODE_FOR_sse2_ucomi, "__builtin_ia32_ucomisdle", IX86_BUILTIN_UCOMILESD, UNLE, 0 }, | |
12809 | { MASK_SSE2, CODE_FOR_sse2_ucomi, "__builtin_ia32_ucomisdgt", IX86_BUILTIN_UCOMIGTSD, GT, 0 }, | |
12810 | { MASK_SSE2, CODE_FOR_sse2_ucomi, "__builtin_ia32_ucomisdge", IX86_BUILTIN_UCOMIGESD, GE, 0 }, | |
12811 | { MASK_SSE2, CODE_FOR_sse2_ucomi, "__builtin_ia32_ucomisdneq", IX86_BUILTIN_UCOMINEQSD, LTGT, 0 }, | |
bd793c65 BS |
12812 | }; |
12813 | ||
8b60264b | 12814 | static const struct builtin_description bdesc_2arg[] = |
bd793c65 BS |
12815 | { |
12816 | /* SSE */ | |
37f22004 L |
12817 | { MASK_SSE, CODE_FOR_addv4sf3, "__builtin_ia32_addps", IX86_BUILTIN_ADDPS, 0, 0 }, |
12818 | { MASK_SSE, CODE_FOR_subv4sf3, "__builtin_ia32_subps", IX86_BUILTIN_SUBPS, 0, 0 }, | |
12819 | { MASK_SSE, CODE_FOR_mulv4sf3, "__builtin_ia32_mulps", IX86_BUILTIN_MULPS, 0, 0 }, | |
12820 | { MASK_SSE, CODE_FOR_divv4sf3, "__builtin_ia32_divps", IX86_BUILTIN_DIVPS, 0, 0 }, | |
12821 | { MASK_SSE, CODE_FOR_vmaddv4sf3, "__builtin_ia32_addss", IX86_BUILTIN_ADDSS, 0, 0 }, | |
12822 | { MASK_SSE, CODE_FOR_vmsubv4sf3, "__builtin_ia32_subss", IX86_BUILTIN_SUBSS, 0, 0 }, | |
12823 | { MASK_SSE, CODE_FOR_vmmulv4sf3, "__builtin_ia32_mulss", IX86_BUILTIN_MULSS, 0, 0 }, | |
12824 | { MASK_SSE, CODE_FOR_vmdivv4sf3, "__builtin_ia32_divss", IX86_BUILTIN_DIVSS, 0, 0 }, | |
12825 | ||
12826 | { MASK_SSE, CODE_FOR_maskcmpv4sf3, "__builtin_ia32_cmpeqps", IX86_BUILTIN_CMPEQPS, EQ, 0 }, | |
12827 | { MASK_SSE, CODE_FOR_maskcmpv4sf3, "__builtin_ia32_cmpltps", IX86_BUILTIN_CMPLTPS, LT, 0 }, | |
12828 | { MASK_SSE, CODE_FOR_maskcmpv4sf3, "__builtin_ia32_cmpleps", IX86_BUILTIN_CMPLEPS, LE, 0 }, | |
12829 | { MASK_SSE, CODE_FOR_maskcmpv4sf3, "__builtin_ia32_cmpgtps", IX86_BUILTIN_CMPGTPS, LT, 1 }, | |
12830 | { MASK_SSE, CODE_FOR_maskcmpv4sf3, "__builtin_ia32_cmpgeps", IX86_BUILTIN_CMPGEPS, LE, 1 }, | |
12831 | { MASK_SSE, CODE_FOR_maskcmpv4sf3, "__builtin_ia32_cmpunordps", IX86_BUILTIN_CMPUNORDPS, UNORDERED, 0 }, | |
12832 | { MASK_SSE, CODE_FOR_maskncmpv4sf3, "__builtin_ia32_cmpneqps", IX86_BUILTIN_CMPNEQPS, EQ, 0 }, | |
12833 | { MASK_SSE, CODE_FOR_maskncmpv4sf3, "__builtin_ia32_cmpnltps", IX86_BUILTIN_CMPNLTPS, LT, 0 }, | |
12834 | { MASK_SSE, CODE_FOR_maskncmpv4sf3, "__builtin_ia32_cmpnleps", IX86_BUILTIN_CMPNLEPS, LE, 0 }, | |
12835 | { MASK_SSE, CODE_FOR_maskncmpv4sf3, "__builtin_ia32_cmpngtps", IX86_BUILTIN_CMPNGTPS, LT, 1 }, | |
12836 | { MASK_SSE, CODE_FOR_maskncmpv4sf3, "__builtin_ia32_cmpngeps", IX86_BUILTIN_CMPNGEPS, LE, 1 }, | |
12837 | { MASK_SSE, CODE_FOR_maskncmpv4sf3, "__builtin_ia32_cmpordps", IX86_BUILTIN_CMPORDPS, UNORDERED, 0 }, | |
12838 | { MASK_SSE, CODE_FOR_vmmaskcmpv4sf3, "__builtin_ia32_cmpeqss", IX86_BUILTIN_CMPEQSS, EQ, 0 }, | |
12839 | { MASK_SSE, CODE_FOR_vmmaskcmpv4sf3, "__builtin_ia32_cmpltss", IX86_BUILTIN_CMPLTSS, LT, 0 }, | |
12840 | { MASK_SSE, CODE_FOR_vmmaskcmpv4sf3, "__builtin_ia32_cmpless", IX86_BUILTIN_CMPLESS, LE, 0 }, | |
12841 | { MASK_SSE, CODE_FOR_vmmaskcmpv4sf3, "__builtin_ia32_cmpunordss", IX86_BUILTIN_CMPUNORDSS, UNORDERED, 0 }, | |
12842 | { MASK_SSE, CODE_FOR_vmmaskncmpv4sf3, "__builtin_ia32_cmpneqss", IX86_BUILTIN_CMPNEQSS, EQ, 0 }, | |
12843 | { MASK_SSE, CODE_FOR_vmmaskncmpv4sf3, "__builtin_ia32_cmpnltss", IX86_BUILTIN_CMPNLTSS, LT, 0 }, | |
12844 | { MASK_SSE, CODE_FOR_vmmaskncmpv4sf3, "__builtin_ia32_cmpnless", IX86_BUILTIN_CMPNLESS, LE, 0 }, | |
12845 | { MASK_SSE, CODE_FOR_vmmaskncmpv4sf3, "__builtin_ia32_cmpordss", IX86_BUILTIN_CMPORDSS, UNORDERED, 0 }, | |
12846 | ||
12847 | { MASK_SSE, CODE_FOR_sminv4sf3, "__builtin_ia32_minps", IX86_BUILTIN_MINPS, 0, 0 }, | |
12848 | { MASK_SSE, CODE_FOR_smaxv4sf3, "__builtin_ia32_maxps", IX86_BUILTIN_MAXPS, 0, 0 }, | |
12849 | { MASK_SSE, CODE_FOR_vmsminv4sf3, "__builtin_ia32_minss", IX86_BUILTIN_MINSS, 0, 0 }, | |
12850 | { MASK_SSE, CODE_FOR_vmsmaxv4sf3, "__builtin_ia32_maxss", IX86_BUILTIN_MAXSS, 0, 0 }, | |
12851 | ||
12852 | { MASK_SSE, CODE_FOR_sse_andv4sf3, "__builtin_ia32_andps", IX86_BUILTIN_ANDPS, 0, 0 }, | |
12853 | { MASK_SSE, CODE_FOR_sse_nandv4sf3, "__builtin_ia32_andnps", IX86_BUILTIN_ANDNPS, 0, 0 }, | |
12854 | { MASK_SSE, CODE_FOR_sse_iorv4sf3, "__builtin_ia32_orps", IX86_BUILTIN_ORPS, 0, 0 }, | |
12855 | { MASK_SSE, CODE_FOR_sse_xorv4sf3, "__builtin_ia32_xorps", IX86_BUILTIN_XORPS, 0, 0 }, | |
12856 | ||
12857 | { MASK_SSE, CODE_FOR_sse_movss, "__builtin_ia32_movss", IX86_BUILTIN_MOVSS, 0, 0 }, | |
12858 | { MASK_SSE, CODE_FOR_sse_movhlps, "__builtin_ia32_movhlps", IX86_BUILTIN_MOVHLPS, 0, 0 }, | |
12859 | { MASK_SSE, CODE_FOR_sse_movlhps, "__builtin_ia32_movlhps", IX86_BUILTIN_MOVLHPS, 0, 0 }, | |
12860 | { MASK_SSE, CODE_FOR_sse_unpckhps, "__builtin_ia32_unpckhps", IX86_BUILTIN_UNPCKHPS, 0, 0 }, | |
12861 | { MASK_SSE, CODE_FOR_sse_unpcklps, "__builtin_ia32_unpcklps", IX86_BUILTIN_UNPCKLPS, 0, 0 }, | |
bd793c65 BS |
12862 | |
12863 | /* MMX */ | |
eeb06b1b BS |
12864 | { MASK_MMX, CODE_FOR_addv8qi3, "__builtin_ia32_paddb", IX86_BUILTIN_PADDB, 0, 0 }, |
12865 | { MASK_MMX, CODE_FOR_addv4hi3, "__builtin_ia32_paddw", IX86_BUILTIN_PADDW, 0, 0 }, | |
12866 | { MASK_MMX, CODE_FOR_addv2si3, "__builtin_ia32_paddd", IX86_BUILTIN_PADDD, 0, 0 }, | |
d50672ef | 12867 | { MASK_MMX, CODE_FOR_mmx_adddi3, "__builtin_ia32_paddq", IX86_BUILTIN_PADDQ, 0, 0 }, |
eeb06b1b BS |
12868 | { MASK_MMX, CODE_FOR_subv8qi3, "__builtin_ia32_psubb", IX86_BUILTIN_PSUBB, 0, 0 }, |
12869 | { MASK_MMX, CODE_FOR_subv4hi3, "__builtin_ia32_psubw", IX86_BUILTIN_PSUBW, 0, 0 }, | |
12870 | { MASK_MMX, CODE_FOR_subv2si3, "__builtin_ia32_psubd", IX86_BUILTIN_PSUBD, 0, 0 }, | |
d50672ef | 12871 | { MASK_MMX, CODE_FOR_mmx_subdi3, "__builtin_ia32_psubq", IX86_BUILTIN_PSUBQ, 0, 0 }, |
eeb06b1b BS |
12872 | |
12873 | { MASK_MMX, CODE_FOR_ssaddv8qi3, "__builtin_ia32_paddsb", IX86_BUILTIN_PADDSB, 0, 0 }, | |
12874 | { MASK_MMX, CODE_FOR_ssaddv4hi3, "__builtin_ia32_paddsw", IX86_BUILTIN_PADDSW, 0, 0 }, | |
12875 | { MASK_MMX, CODE_FOR_sssubv8qi3, "__builtin_ia32_psubsb", IX86_BUILTIN_PSUBSB, 0, 0 }, | |
12876 | { MASK_MMX, CODE_FOR_sssubv4hi3, "__builtin_ia32_psubsw", IX86_BUILTIN_PSUBSW, 0, 0 }, | |
12877 | { MASK_MMX, CODE_FOR_usaddv8qi3, "__builtin_ia32_paddusb", IX86_BUILTIN_PADDUSB, 0, 0 }, | |
12878 | { MASK_MMX, CODE_FOR_usaddv4hi3, "__builtin_ia32_paddusw", IX86_BUILTIN_PADDUSW, 0, 0 }, | |
12879 | { MASK_MMX, CODE_FOR_ussubv8qi3, "__builtin_ia32_psubusb", IX86_BUILTIN_PSUBUSB, 0, 0 }, | |
12880 | { MASK_MMX, CODE_FOR_ussubv4hi3, "__builtin_ia32_psubusw", IX86_BUILTIN_PSUBUSW, 0, 0 }, | |
12881 | ||
12882 | { MASK_MMX, CODE_FOR_mulv4hi3, "__builtin_ia32_pmullw", IX86_BUILTIN_PMULLW, 0, 0 }, | |
12883 | { MASK_MMX, CODE_FOR_smulv4hi3_highpart, "__builtin_ia32_pmulhw", IX86_BUILTIN_PMULHW, 0, 0 }, | |
37f22004 | 12884 | { MASK_SSE | MASK_3DNOW_A, CODE_FOR_umulv4hi3_highpart, "__builtin_ia32_pmulhuw", IX86_BUILTIN_PMULHUW, 0, 0 }, |
eeb06b1b BS |
12885 | |
12886 | { MASK_MMX, CODE_FOR_mmx_anddi3, "__builtin_ia32_pand", IX86_BUILTIN_PAND, 0, 0 }, | |
12887 | { MASK_MMX, CODE_FOR_mmx_nanddi3, "__builtin_ia32_pandn", IX86_BUILTIN_PANDN, 0, 0 }, | |
12888 | { MASK_MMX, CODE_FOR_mmx_iordi3, "__builtin_ia32_por", IX86_BUILTIN_POR, 0, 0 }, | |
12889 | { MASK_MMX, CODE_FOR_mmx_xordi3, "__builtin_ia32_pxor", IX86_BUILTIN_PXOR, 0, 0 }, | |
12890 | ||
37f22004 L |
12891 | { MASK_SSE | MASK_3DNOW_A, CODE_FOR_mmx_uavgv8qi3, "__builtin_ia32_pavgb", IX86_BUILTIN_PAVGB, 0, 0 }, |
12892 | { MASK_SSE | MASK_3DNOW_A, CODE_FOR_mmx_uavgv4hi3, "__builtin_ia32_pavgw", IX86_BUILTIN_PAVGW, 0, 0 }, | |
eeb06b1b BS |
12893 | |
12894 | { MASK_MMX, CODE_FOR_eqv8qi3, "__builtin_ia32_pcmpeqb", IX86_BUILTIN_PCMPEQB, 0, 0 }, | |
12895 | { MASK_MMX, CODE_FOR_eqv4hi3, "__builtin_ia32_pcmpeqw", IX86_BUILTIN_PCMPEQW, 0, 0 }, | |
12896 | { MASK_MMX, CODE_FOR_eqv2si3, "__builtin_ia32_pcmpeqd", IX86_BUILTIN_PCMPEQD, 0, 0 }, | |
12897 | { MASK_MMX, CODE_FOR_gtv8qi3, "__builtin_ia32_pcmpgtb", IX86_BUILTIN_PCMPGTB, 0, 0 }, | |
12898 | { MASK_MMX, CODE_FOR_gtv4hi3, "__builtin_ia32_pcmpgtw", IX86_BUILTIN_PCMPGTW, 0, 0 }, | |
12899 | { MASK_MMX, CODE_FOR_gtv2si3, "__builtin_ia32_pcmpgtd", IX86_BUILTIN_PCMPGTD, 0, 0 }, | |
12900 | ||
37f22004 L |
12901 | { MASK_SSE | MASK_3DNOW_A, CODE_FOR_umaxv8qi3, "__builtin_ia32_pmaxub", IX86_BUILTIN_PMAXUB, 0, 0 }, |
12902 | { MASK_SSE | MASK_3DNOW_A, CODE_FOR_smaxv4hi3, "__builtin_ia32_pmaxsw", IX86_BUILTIN_PMAXSW, 0, 0 }, | |
12903 | { MASK_SSE | MASK_3DNOW_A, CODE_FOR_uminv8qi3, "__builtin_ia32_pminub", IX86_BUILTIN_PMINUB, 0, 0 }, | |
12904 | { MASK_SSE | MASK_3DNOW_A, CODE_FOR_sminv4hi3, "__builtin_ia32_pminsw", IX86_BUILTIN_PMINSW, 0, 0 }, | |
eeb06b1b BS |
12905 | |
12906 | { MASK_MMX, CODE_FOR_mmx_punpckhbw, "__builtin_ia32_punpckhbw", IX86_BUILTIN_PUNPCKHBW, 0, 0 }, | |
12907 | { MASK_MMX, CODE_FOR_mmx_punpckhwd, "__builtin_ia32_punpckhwd", IX86_BUILTIN_PUNPCKHWD, 0, 0 }, | |
12908 | { MASK_MMX, CODE_FOR_mmx_punpckhdq, "__builtin_ia32_punpckhdq", IX86_BUILTIN_PUNPCKHDQ, 0, 0 }, | |
12909 | { MASK_MMX, CODE_FOR_mmx_punpcklbw, "__builtin_ia32_punpcklbw", IX86_BUILTIN_PUNPCKLBW, 0, 0 }, | |
12910 | { MASK_MMX, CODE_FOR_mmx_punpcklwd, "__builtin_ia32_punpcklwd", IX86_BUILTIN_PUNPCKLWD, 0, 0 }, | |
12911 | { MASK_MMX, CODE_FOR_mmx_punpckldq, "__builtin_ia32_punpckldq", IX86_BUILTIN_PUNPCKLDQ, 0, 0 }, | |
bd793c65 BS |
12912 | |
12913 | /* Special. */ | |
eeb06b1b BS |
12914 | { MASK_MMX, CODE_FOR_mmx_packsswb, 0, IX86_BUILTIN_PACKSSWB, 0, 0 }, |
12915 | { MASK_MMX, CODE_FOR_mmx_packssdw, 0, IX86_BUILTIN_PACKSSDW, 0, 0 }, | |
12916 | { MASK_MMX, CODE_FOR_mmx_packuswb, 0, IX86_BUILTIN_PACKUSWB, 0, 0 }, | |
12917 | ||
37f22004 L |
12918 | { MASK_SSE, CODE_FOR_cvtpi2ps, 0, IX86_BUILTIN_CVTPI2PS, 0, 0 }, |
12919 | { MASK_SSE, CODE_FOR_cvtsi2ss, 0, IX86_BUILTIN_CVTSI2SS, 0, 0 }, | |
12920 | { MASK_SSE | MASK_64BIT, CODE_FOR_cvtsi2ssq, 0, IX86_BUILTIN_CVTSI642SS, 0, 0 }, | |
eeb06b1b BS |
12921 | |
12922 | { MASK_MMX, CODE_FOR_ashlv4hi3, 0, IX86_BUILTIN_PSLLW, 0, 0 }, | |
12923 | { MASK_MMX, CODE_FOR_ashlv4hi3, 0, IX86_BUILTIN_PSLLWI, 0, 0 }, | |
12924 | { MASK_MMX, CODE_FOR_ashlv2si3, 0, IX86_BUILTIN_PSLLD, 0, 0 }, | |
12925 | { MASK_MMX, CODE_FOR_ashlv2si3, 0, IX86_BUILTIN_PSLLDI, 0, 0 }, | |
12926 | { MASK_MMX, CODE_FOR_mmx_ashldi3, 0, IX86_BUILTIN_PSLLQ, 0, 0 }, | |
12927 | { MASK_MMX, CODE_FOR_mmx_ashldi3, 0, IX86_BUILTIN_PSLLQI, 0, 0 }, | |
12928 | ||
12929 | { MASK_MMX, CODE_FOR_lshrv4hi3, 0, IX86_BUILTIN_PSRLW, 0, 0 }, | |
12930 | { MASK_MMX, CODE_FOR_lshrv4hi3, 0, IX86_BUILTIN_PSRLWI, 0, 0 }, | |
12931 | { MASK_MMX, CODE_FOR_lshrv2si3, 0, IX86_BUILTIN_PSRLD, 0, 0 }, | |
12932 | { MASK_MMX, CODE_FOR_lshrv2si3, 0, IX86_BUILTIN_PSRLDI, 0, 0 }, | |
12933 | { MASK_MMX, CODE_FOR_mmx_lshrdi3, 0, IX86_BUILTIN_PSRLQ, 0, 0 }, | |
12934 | { MASK_MMX, CODE_FOR_mmx_lshrdi3, 0, IX86_BUILTIN_PSRLQI, 0, 0 }, | |
12935 | ||
12936 | { MASK_MMX, CODE_FOR_ashrv4hi3, 0, IX86_BUILTIN_PSRAW, 0, 0 }, | |
12937 | { MASK_MMX, CODE_FOR_ashrv4hi3, 0, IX86_BUILTIN_PSRAWI, 0, 0 }, | |
12938 | { MASK_MMX, CODE_FOR_ashrv2si3, 0, IX86_BUILTIN_PSRAD, 0, 0 }, | |
12939 | { MASK_MMX, CODE_FOR_ashrv2si3, 0, IX86_BUILTIN_PSRADI, 0, 0 }, | |
12940 | ||
37f22004 | 12941 | { MASK_SSE | MASK_3DNOW_A, CODE_FOR_mmx_psadbw, 0, IX86_BUILTIN_PSADBW, 0, 0 }, |
fbe5eb6d BS |
12942 | { MASK_MMX, CODE_FOR_mmx_pmaddwd, 0, IX86_BUILTIN_PMADDWD, 0, 0 }, |
12943 | ||
12944 | /* SSE2 */ | |
12945 | { MASK_SSE2, CODE_FOR_addv2df3, "__builtin_ia32_addpd", IX86_BUILTIN_ADDPD, 0, 0 }, | |
12946 | { MASK_SSE2, CODE_FOR_subv2df3, "__builtin_ia32_subpd", IX86_BUILTIN_SUBPD, 0, 0 }, | |
12947 | { MASK_SSE2, CODE_FOR_mulv2df3, "__builtin_ia32_mulpd", IX86_BUILTIN_MULPD, 0, 0 }, | |
12948 | { MASK_SSE2, CODE_FOR_divv2df3, "__builtin_ia32_divpd", IX86_BUILTIN_DIVPD, 0, 0 }, | |
12949 | { MASK_SSE2, CODE_FOR_vmaddv2df3, "__builtin_ia32_addsd", IX86_BUILTIN_ADDSD, 0, 0 }, | |
12950 | { MASK_SSE2, CODE_FOR_vmsubv2df3, "__builtin_ia32_subsd", IX86_BUILTIN_SUBSD, 0, 0 }, | |
12951 | { MASK_SSE2, CODE_FOR_vmmulv2df3, "__builtin_ia32_mulsd", IX86_BUILTIN_MULSD, 0, 0 }, | |
12952 | { MASK_SSE2, CODE_FOR_vmdivv2df3, "__builtin_ia32_divsd", IX86_BUILTIN_DIVSD, 0, 0 }, | |
12953 | ||
12954 | { MASK_SSE2, CODE_FOR_maskcmpv2df3, "__builtin_ia32_cmpeqpd", IX86_BUILTIN_CMPEQPD, EQ, 0 }, | |
12955 | { MASK_SSE2, CODE_FOR_maskcmpv2df3, "__builtin_ia32_cmpltpd", IX86_BUILTIN_CMPLTPD, LT, 0 }, | |
12956 | { MASK_SSE2, CODE_FOR_maskcmpv2df3, "__builtin_ia32_cmplepd", IX86_BUILTIN_CMPLEPD, LE, 0 }, | |
12957 | { MASK_SSE2, CODE_FOR_maskcmpv2df3, "__builtin_ia32_cmpgtpd", IX86_BUILTIN_CMPGTPD, LT, 1 }, | |
12958 | { MASK_SSE2, CODE_FOR_maskcmpv2df3, "__builtin_ia32_cmpgepd", IX86_BUILTIN_CMPGEPD, LE, 1 }, | |
12959 | { MASK_SSE2, CODE_FOR_maskcmpv2df3, "__builtin_ia32_cmpunordpd", IX86_BUILTIN_CMPUNORDPD, UNORDERED, 0 }, | |
12960 | { MASK_SSE2, CODE_FOR_maskncmpv2df3, "__builtin_ia32_cmpneqpd", IX86_BUILTIN_CMPNEQPD, EQ, 0 }, | |
12961 | { MASK_SSE2, CODE_FOR_maskncmpv2df3, "__builtin_ia32_cmpnltpd", IX86_BUILTIN_CMPNLTPD, LT, 0 }, | |
12962 | { MASK_SSE2, CODE_FOR_maskncmpv2df3, "__builtin_ia32_cmpnlepd", IX86_BUILTIN_CMPNLEPD, LE, 0 }, | |
12963 | { MASK_SSE2, CODE_FOR_maskncmpv2df3, "__builtin_ia32_cmpngtpd", IX86_BUILTIN_CMPNGTPD, LT, 1 }, | |
12964 | { MASK_SSE2, CODE_FOR_maskncmpv2df3, "__builtin_ia32_cmpngepd", IX86_BUILTIN_CMPNGEPD, LE, 1 }, | |
12965 | { MASK_SSE2, CODE_FOR_maskncmpv2df3, "__builtin_ia32_cmpordpd", IX86_BUILTIN_CMPORDPD, UNORDERED, 0 }, | |
12966 | { MASK_SSE2, CODE_FOR_vmmaskcmpv2df3, "__builtin_ia32_cmpeqsd", IX86_BUILTIN_CMPEQSD, EQ, 0 }, | |
12967 | { MASK_SSE2, CODE_FOR_vmmaskcmpv2df3, "__builtin_ia32_cmpltsd", IX86_BUILTIN_CMPLTSD, LT, 0 }, | |
12968 | { MASK_SSE2, CODE_FOR_vmmaskcmpv2df3, "__builtin_ia32_cmplesd", IX86_BUILTIN_CMPLESD, LE, 0 }, | |
fbe5eb6d BS |
12969 | { MASK_SSE2, CODE_FOR_vmmaskcmpv2df3, "__builtin_ia32_cmpunordsd", IX86_BUILTIN_CMPUNORDSD, UNORDERED, 0 }, |
12970 | { MASK_SSE2, CODE_FOR_vmmaskncmpv2df3, "__builtin_ia32_cmpneqsd", IX86_BUILTIN_CMPNEQSD, EQ, 0 }, | |
12971 | { MASK_SSE2, CODE_FOR_vmmaskncmpv2df3, "__builtin_ia32_cmpnltsd", IX86_BUILTIN_CMPNLTSD, LT, 0 }, | |
12972 | { MASK_SSE2, CODE_FOR_vmmaskncmpv2df3, "__builtin_ia32_cmpnlesd", IX86_BUILTIN_CMPNLESD, LE, 0 }, | |
fbe5eb6d BS |
12973 | { MASK_SSE2, CODE_FOR_vmmaskncmpv2df3, "__builtin_ia32_cmpordsd", IX86_BUILTIN_CMPORDSD, UNORDERED, 0 }, |
12974 | ||
12975 | { MASK_SSE2, CODE_FOR_sminv2df3, "__builtin_ia32_minpd", IX86_BUILTIN_MINPD, 0, 0 }, | |
12976 | { MASK_SSE2, CODE_FOR_smaxv2df3, "__builtin_ia32_maxpd", IX86_BUILTIN_MAXPD, 0, 0 }, | |
12977 | { MASK_SSE2, CODE_FOR_vmsminv2df3, "__builtin_ia32_minsd", IX86_BUILTIN_MINSD, 0, 0 }, | |
12978 | { MASK_SSE2, CODE_FOR_vmsmaxv2df3, "__builtin_ia32_maxsd", IX86_BUILTIN_MAXSD, 0, 0 }, | |
12979 | ||
1877be45 JH |
12980 | { MASK_SSE2, CODE_FOR_sse2_andv2df3, "__builtin_ia32_andpd", IX86_BUILTIN_ANDPD, 0, 0 }, |
12981 | { MASK_SSE2, CODE_FOR_sse2_nandv2df3, "__builtin_ia32_andnpd", IX86_BUILTIN_ANDNPD, 0, 0 }, | |
12982 | { MASK_SSE2, CODE_FOR_sse2_iorv2df3, "__builtin_ia32_orpd", IX86_BUILTIN_ORPD, 0, 0 }, | |
12983 | { MASK_SSE2, CODE_FOR_sse2_xorv2df3, "__builtin_ia32_xorpd", IX86_BUILTIN_XORPD, 0, 0 }, | |
fbe5eb6d BS |
12984 | |
12985 | { MASK_SSE2, CODE_FOR_sse2_movsd, "__builtin_ia32_movsd", IX86_BUILTIN_MOVSD, 0, 0 }, | |
12986 | { MASK_SSE2, CODE_FOR_sse2_unpckhpd, "__builtin_ia32_unpckhpd", IX86_BUILTIN_UNPCKHPD, 0, 0 }, | |
12987 | { MASK_SSE2, CODE_FOR_sse2_unpcklpd, "__builtin_ia32_unpcklpd", IX86_BUILTIN_UNPCKLPD, 0, 0 }, | |
12988 | ||
12989 | /* SSE2 MMX */ | |
12990 | { MASK_SSE2, CODE_FOR_addv16qi3, "__builtin_ia32_paddb128", IX86_BUILTIN_PADDB128, 0, 0 }, | |
12991 | { MASK_SSE2, CODE_FOR_addv8hi3, "__builtin_ia32_paddw128", IX86_BUILTIN_PADDW128, 0, 0 }, | |
12992 | { MASK_SSE2, CODE_FOR_addv4si3, "__builtin_ia32_paddd128", IX86_BUILTIN_PADDD128, 0, 0 }, | |
d50672ef | 12993 | { MASK_SSE2, CODE_FOR_addv2di3, "__builtin_ia32_paddq128", IX86_BUILTIN_PADDQ128, 0, 0 }, |
fbe5eb6d BS |
12994 | { MASK_SSE2, CODE_FOR_subv16qi3, "__builtin_ia32_psubb128", IX86_BUILTIN_PSUBB128, 0, 0 }, |
12995 | { MASK_SSE2, CODE_FOR_subv8hi3, "__builtin_ia32_psubw128", IX86_BUILTIN_PSUBW128, 0, 0 }, | |
12996 | { MASK_SSE2, CODE_FOR_subv4si3, "__builtin_ia32_psubd128", IX86_BUILTIN_PSUBD128, 0, 0 }, | |
d50672ef | 12997 | { MASK_SSE2, CODE_FOR_subv2di3, "__builtin_ia32_psubq128", IX86_BUILTIN_PSUBQ128, 0, 0 }, |
fbe5eb6d BS |
12998 | |
12999 | { MASK_MMX, CODE_FOR_ssaddv16qi3, "__builtin_ia32_paddsb128", IX86_BUILTIN_PADDSB128, 0, 0 }, | |
13000 | { MASK_MMX, CODE_FOR_ssaddv8hi3, "__builtin_ia32_paddsw128", IX86_BUILTIN_PADDSW128, 0, 0 }, | |
13001 | { MASK_MMX, CODE_FOR_sssubv16qi3, "__builtin_ia32_psubsb128", IX86_BUILTIN_PSUBSB128, 0, 0 }, | |
13002 | { MASK_MMX, CODE_FOR_sssubv8hi3, "__builtin_ia32_psubsw128", IX86_BUILTIN_PSUBSW128, 0, 0 }, | |
13003 | { MASK_MMX, CODE_FOR_usaddv16qi3, "__builtin_ia32_paddusb128", IX86_BUILTIN_PADDUSB128, 0, 0 }, | |
13004 | { MASK_MMX, CODE_FOR_usaddv8hi3, "__builtin_ia32_paddusw128", IX86_BUILTIN_PADDUSW128, 0, 0 }, | |
13005 | { MASK_MMX, CODE_FOR_ussubv16qi3, "__builtin_ia32_psubusb128", IX86_BUILTIN_PSUBUSB128, 0, 0 }, | |
13006 | { MASK_MMX, CODE_FOR_ussubv8hi3, "__builtin_ia32_psubusw128", IX86_BUILTIN_PSUBUSW128, 0, 0 }, | |
13007 | ||
13008 | { MASK_SSE2, CODE_FOR_mulv8hi3, "__builtin_ia32_pmullw128", IX86_BUILTIN_PMULLW128, 0, 0 }, | |
13009 | { MASK_SSE2, CODE_FOR_smulv8hi3_highpart, "__builtin_ia32_pmulhw128", IX86_BUILTIN_PMULHW128, 0, 0 }, | |
13010 | { MASK_SSE2, CODE_FOR_sse2_umulsidi3, "__builtin_ia32_pmuludq", IX86_BUILTIN_PMULUDQ, 0, 0 }, | |
13011 | { MASK_SSE2, CODE_FOR_sse2_umulv2siv2di3, "__builtin_ia32_pmuludq128", IX86_BUILTIN_PMULUDQ128, 0, 0 }, | |
13012 | ||
916b60b7 BS |
13013 | { MASK_SSE2, CODE_FOR_sse2_andv2di3, "__builtin_ia32_pand128", IX86_BUILTIN_PAND128, 0, 0 }, |
13014 | { MASK_SSE2, CODE_FOR_sse2_nandv2di3, "__builtin_ia32_pandn128", IX86_BUILTIN_PANDN128, 0, 0 }, | |
13015 | { MASK_SSE2, CODE_FOR_sse2_iorv2di3, "__builtin_ia32_por128", IX86_BUILTIN_POR128, 0, 0 }, | |
13016 | { MASK_SSE2, CODE_FOR_sse2_xorv2di3, "__builtin_ia32_pxor128", IX86_BUILTIN_PXOR128, 0, 0 }, | |
fbe5eb6d BS |
13017 | |
13018 | { MASK_SSE2, CODE_FOR_sse2_uavgv16qi3, "__builtin_ia32_pavgb128", IX86_BUILTIN_PAVGB128, 0, 0 }, | |
13019 | { MASK_SSE2, CODE_FOR_sse2_uavgv8hi3, "__builtin_ia32_pavgw128", IX86_BUILTIN_PAVGW128, 0, 0 }, | |
13020 | ||
13021 | { MASK_SSE2, CODE_FOR_eqv16qi3, "__builtin_ia32_pcmpeqb128", IX86_BUILTIN_PCMPEQB128, 0, 0 }, | |
13022 | { MASK_SSE2, CODE_FOR_eqv8hi3, "__builtin_ia32_pcmpeqw128", IX86_BUILTIN_PCMPEQW128, 0, 0 }, | |
13023 | { MASK_SSE2, CODE_FOR_eqv4si3, "__builtin_ia32_pcmpeqd128", IX86_BUILTIN_PCMPEQD128, 0, 0 }, | |
13024 | { MASK_SSE2, CODE_FOR_gtv16qi3, "__builtin_ia32_pcmpgtb128", IX86_BUILTIN_PCMPGTB128, 0, 0 }, | |
13025 | { MASK_SSE2, CODE_FOR_gtv8hi3, "__builtin_ia32_pcmpgtw128", IX86_BUILTIN_PCMPGTW128, 0, 0 }, | |
13026 | { MASK_SSE2, CODE_FOR_gtv4si3, "__builtin_ia32_pcmpgtd128", IX86_BUILTIN_PCMPGTD128, 0, 0 }, | |
13027 | ||
13028 | { MASK_SSE2, CODE_FOR_umaxv16qi3, "__builtin_ia32_pmaxub128", IX86_BUILTIN_PMAXUB128, 0, 0 }, | |
13029 | { MASK_SSE2, CODE_FOR_smaxv8hi3, "__builtin_ia32_pmaxsw128", IX86_BUILTIN_PMAXSW128, 0, 0 }, | |
13030 | { MASK_SSE2, CODE_FOR_uminv16qi3, "__builtin_ia32_pminub128", IX86_BUILTIN_PMINUB128, 0, 0 }, | |
13031 | { MASK_SSE2, CODE_FOR_sminv8hi3, "__builtin_ia32_pminsw128", IX86_BUILTIN_PMINSW128, 0, 0 }, | |
13032 | ||
13033 | { MASK_SSE2, CODE_FOR_sse2_punpckhbw, "__builtin_ia32_punpckhbw128", IX86_BUILTIN_PUNPCKHBW128, 0, 0 }, | |
13034 | { MASK_SSE2, CODE_FOR_sse2_punpckhwd, "__builtin_ia32_punpckhwd128", IX86_BUILTIN_PUNPCKHWD128, 0, 0 }, | |
13035 | { MASK_SSE2, CODE_FOR_sse2_punpckhdq, "__builtin_ia32_punpckhdq128", IX86_BUILTIN_PUNPCKHDQ128, 0, 0 }, | |
077084dd | 13036 | { MASK_SSE2, CODE_FOR_sse2_punpckhqdq, "__builtin_ia32_punpckhqdq128", IX86_BUILTIN_PUNPCKHQDQ128, 0, 0 }, |
fbe5eb6d BS |
13037 | { MASK_SSE2, CODE_FOR_sse2_punpcklbw, "__builtin_ia32_punpcklbw128", IX86_BUILTIN_PUNPCKLBW128, 0, 0 }, |
13038 | { MASK_SSE2, CODE_FOR_sse2_punpcklwd, "__builtin_ia32_punpcklwd128", IX86_BUILTIN_PUNPCKLWD128, 0, 0 }, | |
13039 | { MASK_SSE2, CODE_FOR_sse2_punpckldq, "__builtin_ia32_punpckldq128", IX86_BUILTIN_PUNPCKLDQ128, 0, 0 }, | |
f02e1358 | 13040 | { MASK_SSE2, CODE_FOR_sse2_punpcklqdq, "__builtin_ia32_punpcklqdq128", IX86_BUILTIN_PUNPCKLQDQ128, 0, 0 }, |
fbe5eb6d | 13041 | |
916b60b7 BS |
13042 | { MASK_SSE2, CODE_FOR_sse2_packsswb, "__builtin_ia32_packsswb128", IX86_BUILTIN_PACKSSWB128, 0, 0 }, |
13043 | { MASK_SSE2, CODE_FOR_sse2_packssdw, "__builtin_ia32_packssdw128", IX86_BUILTIN_PACKSSDW128, 0, 0 }, | |
13044 | { MASK_SSE2, CODE_FOR_sse2_packuswb, "__builtin_ia32_packuswb128", IX86_BUILTIN_PACKUSWB128, 0, 0 }, | |
13045 | ||
13046 | { MASK_SSE2, CODE_FOR_umulv8hi3_highpart, "__builtin_ia32_pmulhuw128", IX86_BUILTIN_PMULHUW128, 0, 0 }, | |
13047 | { MASK_SSE2, CODE_FOR_sse2_psadbw, 0, IX86_BUILTIN_PSADBW128, 0, 0 }, | |
13048 | ||
13049 | { MASK_SSE2, CODE_FOR_ashlv8hi3_ti, 0, IX86_BUILTIN_PSLLW128, 0, 0 }, | |
13050 | { MASK_SSE2, CODE_FOR_ashlv8hi3, 0, IX86_BUILTIN_PSLLWI128, 0, 0 }, | |
13051 | { MASK_SSE2, CODE_FOR_ashlv4si3_ti, 0, IX86_BUILTIN_PSLLD128, 0, 0 }, | |
13052 | { MASK_SSE2, CODE_FOR_ashlv4si3, 0, IX86_BUILTIN_PSLLDI128, 0, 0 }, | |
13053 | { MASK_SSE2, CODE_FOR_ashlv2di3_ti, 0, IX86_BUILTIN_PSLLQ128, 0, 0 }, | |
13054 | { MASK_SSE2, CODE_FOR_ashlv2di3, 0, IX86_BUILTIN_PSLLQI128, 0, 0 }, | |
13055 | ||
13056 | { MASK_SSE2, CODE_FOR_lshrv8hi3_ti, 0, IX86_BUILTIN_PSRLW128, 0, 0 }, | |
13057 | { MASK_SSE2, CODE_FOR_lshrv8hi3, 0, IX86_BUILTIN_PSRLWI128, 0, 0 }, | |
13058 | { MASK_SSE2, CODE_FOR_lshrv4si3_ti, 0, IX86_BUILTIN_PSRLD128, 0, 0 }, | |
13059 | { MASK_SSE2, CODE_FOR_lshrv4si3, 0, IX86_BUILTIN_PSRLDI128, 0, 0 }, | |
13060 | { MASK_SSE2, CODE_FOR_lshrv2di3_ti, 0, IX86_BUILTIN_PSRLQ128, 0, 0 }, | |
13061 | { MASK_SSE2, CODE_FOR_lshrv2di3, 0, IX86_BUILTIN_PSRLQI128, 0, 0 }, | |
13062 | ||
13063 | { MASK_SSE2, CODE_FOR_ashrv8hi3_ti, 0, IX86_BUILTIN_PSRAW128, 0, 0 }, | |
13064 | { MASK_SSE2, CODE_FOR_ashrv8hi3, 0, IX86_BUILTIN_PSRAWI128, 0, 0 }, | |
13065 | { MASK_SSE2, CODE_FOR_ashrv4si3_ti, 0, IX86_BUILTIN_PSRAD128, 0, 0 }, | |
13066 | { MASK_SSE2, CODE_FOR_ashrv4si3, 0, IX86_BUILTIN_PSRADI128, 0, 0 }, | |
13067 | ||
13068 | { MASK_SSE2, CODE_FOR_sse2_pmaddwd, 0, IX86_BUILTIN_PMADDWD128, 0, 0 }, | |
13069 | ||
fbe5eb6d | 13070 | { MASK_SSE2, CODE_FOR_cvtsi2sd, 0, IX86_BUILTIN_CVTSI2SD, 0, 0 }, |
37f22004 | 13071 | { MASK_SSE2 | MASK_64BIT, CODE_FOR_cvtsi2sdq, 0, IX86_BUILTIN_CVTSI642SD, 0, 0 }, |
fbe5eb6d | 13072 | { MASK_SSE2, CODE_FOR_cvtsd2ss, 0, IX86_BUILTIN_CVTSD2SS, 0, 0 }, |
22c7c85e L |
13073 | { MASK_SSE2, CODE_FOR_cvtss2sd, 0, IX86_BUILTIN_CVTSS2SD, 0, 0 }, |
13074 | ||
9e200aaf KC |
13075 | /* SSE3 MMX */ |
13076 | { MASK_SSE3, CODE_FOR_addsubv4sf3, "__builtin_ia32_addsubps", IX86_BUILTIN_ADDSUBPS, 0, 0 }, | |
13077 | { MASK_SSE3, CODE_FOR_addsubv2df3, "__builtin_ia32_addsubpd", IX86_BUILTIN_ADDSUBPD, 0, 0 }, | |
13078 | { MASK_SSE3, CODE_FOR_haddv4sf3, "__builtin_ia32_haddps", IX86_BUILTIN_HADDPS, 0, 0 }, | |
13079 | { MASK_SSE3, CODE_FOR_haddv2df3, "__builtin_ia32_haddpd", IX86_BUILTIN_HADDPD, 0, 0 }, | |
13080 | { MASK_SSE3, CODE_FOR_hsubv4sf3, "__builtin_ia32_hsubps", IX86_BUILTIN_HSUBPS, 0, 0 }, | |
13081 | { MASK_SSE3, CODE_FOR_hsubv2df3, "__builtin_ia32_hsubpd", IX86_BUILTIN_HSUBPD, 0, 0 } | |
bd793c65 BS |
13082 | }; |
13083 | ||
8b60264b | 13084 | static const struct builtin_description bdesc_1arg[] = |
bd793c65 | 13085 | { |
37f22004 L |
13086 | { MASK_SSE | MASK_3DNOW_A, CODE_FOR_mmx_pmovmskb, 0, IX86_BUILTIN_PMOVMSKB, 0, 0 }, |
13087 | { MASK_SSE, CODE_FOR_sse_movmskps, 0, IX86_BUILTIN_MOVMSKPS, 0, 0 }, | |
fbe5eb6d | 13088 | |
37f22004 L |
13089 | { MASK_SSE, CODE_FOR_sqrtv4sf2, 0, IX86_BUILTIN_SQRTPS, 0, 0 }, |
13090 | { MASK_SSE, CODE_FOR_rsqrtv4sf2, 0, IX86_BUILTIN_RSQRTPS, 0, 0 }, | |
13091 | { MASK_SSE, CODE_FOR_rcpv4sf2, 0, IX86_BUILTIN_RCPPS, 0, 0 }, | |
fbe5eb6d | 13092 | |
37f22004 L |
13093 | { MASK_SSE, CODE_FOR_cvtps2pi, 0, IX86_BUILTIN_CVTPS2PI, 0, 0 }, |
13094 | { MASK_SSE, CODE_FOR_cvtss2si, 0, IX86_BUILTIN_CVTSS2SI, 0, 0 }, | |
13095 | { MASK_SSE | MASK_64BIT, CODE_FOR_cvtss2siq, 0, IX86_BUILTIN_CVTSS2SI64, 0, 0 }, | |
13096 | { MASK_SSE, CODE_FOR_cvttps2pi, 0, IX86_BUILTIN_CVTTPS2PI, 0, 0 }, | |
13097 | { MASK_SSE, CODE_FOR_cvttss2si, 0, IX86_BUILTIN_CVTTSS2SI, 0, 0 }, | |
13098 | { MASK_SSE | MASK_64BIT, CODE_FOR_cvttss2siq, 0, IX86_BUILTIN_CVTTSS2SI64, 0, 0 }, | |
fbe5eb6d BS |
13099 | |
13100 | { MASK_SSE2, CODE_FOR_sse2_pmovmskb, 0, IX86_BUILTIN_PMOVMSKB128, 0, 0 }, | |
13101 | { MASK_SSE2, CODE_FOR_sse2_movmskpd, 0, IX86_BUILTIN_MOVMSKPD, 0, 0 }, | |
13102 | { MASK_SSE2, CODE_FOR_sse2_movq2dq, 0, IX86_BUILTIN_MOVQ2DQ, 0, 0 }, | |
f02e1358 | 13103 | { MASK_SSE2, CODE_FOR_sse2_movdq2q, 0, IX86_BUILTIN_MOVDQ2Q, 0, 0 }, |
fbe5eb6d BS |
13104 | |
13105 | { MASK_SSE2, CODE_FOR_sqrtv2df2, 0, IX86_BUILTIN_SQRTPD, 0, 0 }, | |
13106 | ||
13107 | { MASK_SSE2, CODE_FOR_cvtdq2pd, 0, IX86_BUILTIN_CVTDQ2PD, 0, 0 }, | |
13108 | { MASK_SSE2, CODE_FOR_cvtdq2ps, 0, IX86_BUILTIN_CVTDQ2PS, 0, 0 }, | |
bd793c65 | 13109 | |
fbe5eb6d BS |
13110 | { MASK_SSE2, CODE_FOR_cvtpd2dq, 0, IX86_BUILTIN_CVTPD2DQ, 0, 0 }, |
13111 | { MASK_SSE2, CODE_FOR_cvtpd2pi, 0, IX86_BUILTIN_CVTPD2PI, 0, 0 }, | |
13112 | { MASK_SSE2, CODE_FOR_cvtpd2ps, 0, IX86_BUILTIN_CVTPD2PS, 0, 0 }, | |
13113 | { MASK_SSE2, CODE_FOR_cvttpd2dq, 0, IX86_BUILTIN_CVTTPD2DQ, 0, 0 }, | |
13114 | { MASK_SSE2, CODE_FOR_cvttpd2pi, 0, IX86_BUILTIN_CVTTPD2PI, 0, 0 }, | |
bd793c65 | 13115 | |
fbe5eb6d | 13116 | { MASK_SSE2, CODE_FOR_cvtpi2pd, 0, IX86_BUILTIN_CVTPI2PD, 0, 0 }, |
bd793c65 | 13117 | |
fbe5eb6d BS |
13118 | { MASK_SSE2, CODE_FOR_cvtsd2si, 0, IX86_BUILTIN_CVTSD2SI, 0, 0 }, |
13119 | { MASK_SSE2, CODE_FOR_cvttsd2si, 0, IX86_BUILTIN_CVTTSD2SI, 0, 0 }, | |
37f22004 L |
13120 | { MASK_SSE2 | MASK_64BIT, CODE_FOR_cvtsd2siq, 0, IX86_BUILTIN_CVTSD2SI64, 0, 0 }, |
13121 | { MASK_SSE2 | MASK_64BIT, CODE_FOR_cvttsd2siq, 0, IX86_BUILTIN_CVTTSD2SI64, 0, 0 }, | |
fbe5eb6d BS |
13122 | |
13123 | { MASK_SSE2, CODE_FOR_cvtps2dq, 0, IX86_BUILTIN_CVTPS2DQ, 0, 0 }, | |
13124 | { MASK_SSE2, CODE_FOR_cvtps2pd, 0, IX86_BUILTIN_CVTPS2PD, 0, 0 }, | |
f02e1358 JH |
13125 | { MASK_SSE2, CODE_FOR_cvttps2dq, 0, IX86_BUILTIN_CVTTPS2DQ, 0, 0 }, |
13126 | ||
22c7c85e L |
13127 | { MASK_SSE2, CODE_FOR_sse2_movq, 0, IX86_BUILTIN_MOVQ, 0, 0 }, |
13128 | ||
9e200aaf KC |
13129 | /* SSE3 */ |
13130 | { MASK_SSE3, CODE_FOR_movshdup, 0, IX86_BUILTIN_MOVSHDUP, 0, 0 }, | |
13131 | { MASK_SSE3, CODE_FOR_movsldup, 0, IX86_BUILTIN_MOVSLDUP, 0, 0 }, | |
13132 | { MASK_SSE3, CODE_FOR_movddup, 0, IX86_BUILTIN_MOVDDUP, 0, 0 } | |
bd793c65 BS |
13133 | }; |
13134 | ||
f6155fda | 13135 | void |
b96a374d | 13136 | ix86_init_builtins (void) |
f6155fda SS |
13137 | { |
13138 | if (TARGET_MMX) | |
13139 | ix86_init_mmx_sse_builtins (); | |
13140 | } | |
13141 | ||
13142 | /* Set up all the MMX/SSE builtins. This is not called if TARGET_MMX | |
bd793c65 BS |
13143 | is zero. Otherwise, if TARGET_SSE is not set, only expand the MMX |
13144 | builtins. */ | |
e37af218 | 13145 | static void |
b96a374d | 13146 | ix86_init_mmx_sse_builtins (void) |
bd793c65 | 13147 | { |
8b60264b | 13148 | const struct builtin_description * d; |
77ebd435 | 13149 | size_t i; |
bd793c65 BS |
13150 | |
13151 | tree pchar_type_node = build_pointer_type (char_type_node); | |
068f5dea JH |
13152 | tree pcchar_type_node = build_pointer_type ( |
13153 | build_type_variant (char_type_node, 1, 0)); | |
bd793c65 | 13154 | tree pfloat_type_node = build_pointer_type (float_type_node); |
068f5dea JH |
13155 | tree pcfloat_type_node = build_pointer_type ( |
13156 | build_type_variant (float_type_node, 1, 0)); | |
bd793c65 | 13157 | tree pv2si_type_node = build_pointer_type (V2SI_type_node); |
916b60b7 | 13158 | tree pv2di_type_node = build_pointer_type (V2DI_type_node); |
bd793c65 BS |
13159 | tree pdi_type_node = build_pointer_type (long_long_unsigned_type_node); |
13160 | ||
13161 | /* Comparisons. */ | |
13162 | tree int_ftype_v4sf_v4sf | |
b4de2f7d AH |
13163 | = build_function_type_list (integer_type_node, |
13164 | V4SF_type_node, V4SF_type_node, NULL_TREE); | |
bd793c65 | 13165 | tree v4si_ftype_v4sf_v4sf |
b4de2f7d AH |
13166 | = build_function_type_list (V4SI_type_node, |
13167 | V4SF_type_node, V4SF_type_node, NULL_TREE); | |
bd793c65 | 13168 | /* MMX/SSE/integer conversions. */ |
bd793c65 | 13169 | tree int_ftype_v4sf |
b4de2f7d AH |
13170 | = build_function_type_list (integer_type_node, |
13171 | V4SF_type_node, NULL_TREE); | |
453ee231 JH |
13172 | tree int64_ftype_v4sf |
13173 | = build_function_type_list (long_long_integer_type_node, | |
13174 | V4SF_type_node, NULL_TREE); | |
bd793c65 | 13175 | tree int_ftype_v8qi |
b4de2f7d | 13176 | = build_function_type_list (integer_type_node, V8QI_type_node, NULL_TREE); |
bd793c65 | 13177 | tree v4sf_ftype_v4sf_int |
b4de2f7d AH |
13178 | = build_function_type_list (V4SF_type_node, |
13179 | V4SF_type_node, integer_type_node, NULL_TREE); | |
453ee231 JH |
13180 | tree v4sf_ftype_v4sf_int64 |
13181 | = build_function_type_list (V4SF_type_node, | |
13182 | V4SF_type_node, long_long_integer_type_node, | |
13183 | NULL_TREE); | |
bd793c65 | 13184 | tree v4sf_ftype_v4sf_v2si |
b4de2f7d AH |
13185 | = build_function_type_list (V4SF_type_node, |
13186 | V4SF_type_node, V2SI_type_node, NULL_TREE); | |
bd793c65 | 13187 | tree int_ftype_v4hi_int |
b4de2f7d AH |
13188 | = build_function_type_list (integer_type_node, |
13189 | V4HI_type_node, integer_type_node, NULL_TREE); | |
bd793c65 | 13190 | tree v4hi_ftype_v4hi_int_int |
e7a60f56 | 13191 | = build_function_type_list (V4HI_type_node, V4HI_type_node, |
b4de2f7d AH |
13192 | integer_type_node, integer_type_node, |
13193 | NULL_TREE); | |
bd793c65 BS |
13194 | /* Miscellaneous. */ |
13195 | tree v8qi_ftype_v4hi_v4hi | |
b4de2f7d AH |
13196 | = build_function_type_list (V8QI_type_node, |
13197 | V4HI_type_node, V4HI_type_node, NULL_TREE); | |
bd793c65 | 13198 | tree v4hi_ftype_v2si_v2si |
b4de2f7d AH |
13199 | = build_function_type_list (V4HI_type_node, |
13200 | V2SI_type_node, V2SI_type_node, NULL_TREE); | |
bd793c65 | 13201 | tree v4sf_ftype_v4sf_v4sf_int |
b4de2f7d AH |
13202 | = build_function_type_list (V4SF_type_node, |
13203 | V4SF_type_node, V4SF_type_node, | |
13204 | integer_type_node, NULL_TREE); | |
bd793c65 | 13205 | tree v2si_ftype_v4hi_v4hi |
b4de2f7d AH |
13206 | = build_function_type_list (V2SI_type_node, |
13207 | V4HI_type_node, V4HI_type_node, NULL_TREE); | |
bd793c65 | 13208 | tree v4hi_ftype_v4hi_int |
b4de2f7d | 13209 | = build_function_type_list (V4HI_type_node, |
e7a60f56 | 13210 | V4HI_type_node, integer_type_node, NULL_TREE); |
bd793c65 | 13211 | tree v4hi_ftype_v4hi_di |
b4de2f7d AH |
13212 | = build_function_type_list (V4HI_type_node, |
13213 | V4HI_type_node, long_long_unsigned_type_node, | |
13214 | NULL_TREE); | |
bd793c65 | 13215 | tree v2si_ftype_v2si_di |
b4de2f7d AH |
13216 | = build_function_type_list (V2SI_type_node, |
13217 | V2SI_type_node, long_long_unsigned_type_node, | |
13218 | NULL_TREE); | |
bd793c65 | 13219 | tree void_ftype_void |
b4de2f7d | 13220 | = build_function_type (void_type_node, void_list_node); |
bd793c65 | 13221 | tree void_ftype_unsigned |
b4de2f7d | 13222 | = build_function_type_list (void_type_node, unsigned_type_node, NULL_TREE); |
22c7c85e L |
13223 | tree void_ftype_unsigned_unsigned |
13224 | = build_function_type_list (void_type_node, unsigned_type_node, | |
13225 | unsigned_type_node, NULL_TREE); | |
13226 | tree void_ftype_pcvoid_unsigned_unsigned | |
13227 | = build_function_type_list (void_type_node, const_ptr_type_node, | |
13228 | unsigned_type_node, unsigned_type_node, | |
13229 | NULL_TREE); | |
bd793c65 | 13230 | tree unsigned_ftype_void |
b4de2f7d | 13231 | = build_function_type (unsigned_type_node, void_list_node); |
bd793c65 | 13232 | tree di_ftype_void |
b4de2f7d | 13233 | = build_function_type (long_long_unsigned_type_node, void_list_node); |
e37af218 | 13234 | tree v4sf_ftype_void |
b4de2f7d | 13235 | = build_function_type (V4SF_type_node, void_list_node); |
bd793c65 | 13236 | tree v2si_ftype_v4sf |
b4de2f7d | 13237 | = build_function_type_list (V2SI_type_node, V4SF_type_node, NULL_TREE); |
bd793c65 | 13238 | /* Loads/stores. */ |
bd793c65 | 13239 | tree void_ftype_v8qi_v8qi_pchar |
b4de2f7d AH |
13240 | = build_function_type_list (void_type_node, |
13241 | V8QI_type_node, V8QI_type_node, | |
13242 | pchar_type_node, NULL_TREE); | |
068f5dea JH |
13243 | tree v4sf_ftype_pcfloat |
13244 | = build_function_type_list (V4SF_type_node, pcfloat_type_node, NULL_TREE); | |
bd793c65 BS |
13245 | /* @@@ the type is bogus */ |
13246 | tree v4sf_ftype_v4sf_pv2si | |
b4de2f7d | 13247 | = build_function_type_list (V4SF_type_node, |
f8ca7923 | 13248 | V4SF_type_node, pv2si_type_node, NULL_TREE); |
1255c85c | 13249 | tree void_ftype_pv2si_v4sf |
b4de2f7d | 13250 | = build_function_type_list (void_type_node, |
f8ca7923 | 13251 | pv2si_type_node, V4SF_type_node, NULL_TREE); |
bd793c65 | 13252 | tree void_ftype_pfloat_v4sf |
b4de2f7d AH |
13253 | = build_function_type_list (void_type_node, |
13254 | pfloat_type_node, V4SF_type_node, NULL_TREE); | |
bd793c65 | 13255 | tree void_ftype_pdi_di |
b4de2f7d AH |
13256 | = build_function_type_list (void_type_node, |
13257 | pdi_type_node, long_long_unsigned_type_node, | |
13258 | NULL_TREE); | |
916b60b7 | 13259 | tree void_ftype_pv2di_v2di |
b4de2f7d AH |
13260 | = build_function_type_list (void_type_node, |
13261 | pv2di_type_node, V2DI_type_node, NULL_TREE); | |
bd793c65 BS |
13262 | /* Normal vector unops. */ |
13263 | tree v4sf_ftype_v4sf | |
b4de2f7d | 13264 | = build_function_type_list (V4SF_type_node, V4SF_type_node, NULL_TREE); |
0f290768 | 13265 | |
bd793c65 BS |
13266 | /* Normal vector binops. */ |
13267 | tree v4sf_ftype_v4sf_v4sf | |
b4de2f7d AH |
13268 | = build_function_type_list (V4SF_type_node, |
13269 | V4SF_type_node, V4SF_type_node, NULL_TREE); | |
bd793c65 | 13270 | tree v8qi_ftype_v8qi_v8qi |
b4de2f7d AH |
13271 | = build_function_type_list (V8QI_type_node, |
13272 | V8QI_type_node, V8QI_type_node, NULL_TREE); | |
bd793c65 | 13273 | tree v4hi_ftype_v4hi_v4hi |
b4de2f7d AH |
13274 | = build_function_type_list (V4HI_type_node, |
13275 | V4HI_type_node, V4HI_type_node, NULL_TREE); | |
bd793c65 | 13276 | tree v2si_ftype_v2si_v2si |
b4de2f7d AH |
13277 | = build_function_type_list (V2SI_type_node, |
13278 | V2SI_type_node, V2SI_type_node, NULL_TREE); | |
bd793c65 | 13279 | tree di_ftype_di_di |
b4de2f7d AH |
13280 | = build_function_type_list (long_long_unsigned_type_node, |
13281 | long_long_unsigned_type_node, | |
13282 | long_long_unsigned_type_node, NULL_TREE); | |
bd793c65 | 13283 | |
47f339cf | 13284 | tree v2si_ftype_v2sf |
ae3aa00d | 13285 | = build_function_type_list (V2SI_type_node, V2SF_type_node, NULL_TREE); |
47f339cf | 13286 | tree v2sf_ftype_v2si |
b4de2f7d | 13287 | = build_function_type_list (V2SF_type_node, V2SI_type_node, NULL_TREE); |
47f339cf | 13288 | tree v2si_ftype_v2si |
b4de2f7d | 13289 | = build_function_type_list (V2SI_type_node, V2SI_type_node, NULL_TREE); |
47f339cf | 13290 | tree v2sf_ftype_v2sf |
b4de2f7d | 13291 | = build_function_type_list (V2SF_type_node, V2SF_type_node, NULL_TREE); |
47f339cf | 13292 | tree v2sf_ftype_v2sf_v2sf |
b4de2f7d AH |
13293 | = build_function_type_list (V2SF_type_node, |
13294 | V2SF_type_node, V2SF_type_node, NULL_TREE); | |
47f339cf | 13295 | tree v2si_ftype_v2sf_v2sf |
b4de2f7d AH |
13296 | = build_function_type_list (V2SI_type_node, |
13297 | V2SF_type_node, V2SF_type_node, NULL_TREE); | |
fbe5eb6d | 13298 | tree pint_type_node = build_pointer_type (integer_type_node); |
068f5dea JH |
13299 | tree pcint_type_node = build_pointer_type ( |
13300 | build_type_variant (integer_type_node, 1, 0)); | |
fbe5eb6d | 13301 | tree pdouble_type_node = build_pointer_type (double_type_node); |
068f5dea JH |
13302 | tree pcdouble_type_node = build_pointer_type ( |
13303 | build_type_variant (double_type_node, 1, 0)); | |
fbe5eb6d | 13304 | tree int_ftype_v2df_v2df |
b4de2f7d AH |
13305 | = build_function_type_list (integer_type_node, |
13306 | V2DF_type_node, V2DF_type_node, NULL_TREE); | |
fbe5eb6d BS |
13307 | |
13308 | tree ti_ftype_void | |
b4de2f7d | 13309 | = build_function_type (intTI_type_node, void_list_node); |
f02e1358 JH |
13310 | tree v2di_ftype_void |
13311 | = build_function_type (V2DI_type_node, void_list_node); | |
fbe5eb6d | 13312 | tree ti_ftype_ti_ti |
b4de2f7d AH |
13313 | = build_function_type_list (intTI_type_node, |
13314 | intTI_type_node, intTI_type_node, NULL_TREE); | |
068f5dea JH |
13315 | tree void_ftype_pcvoid |
13316 | = build_function_type_list (void_type_node, const_ptr_type_node, NULL_TREE); | |
fbe5eb6d | 13317 | tree v2di_ftype_di |
b4de2f7d AH |
13318 | = build_function_type_list (V2DI_type_node, |
13319 | long_long_unsigned_type_node, NULL_TREE); | |
f02e1358 JH |
13320 | tree di_ftype_v2di |
13321 | = build_function_type_list (long_long_unsigned_type_node, | |
13322 | V2DI_type_node, NULL_TREE); | |
fbe5eb6d | 13323 | tree v4sf_ftype_v4si |
b4de2f7d | 13324 | = build_function_type_list (V4SF_type_node, V4SI_type_node, NULL_TREE); |
fbe5eb6d | 13325 | tree v4si_ftype_v4sf |
b4de2f7d | 13326 | = build_function_type_list (V4SI_type_node, V4SF_type_node, NULL_TREE); |
fbe5eb6d | 13327 | tree v2df_ftype_v4si |
b4de2f7d | 13328 | = build_function_type_list (V2DF_type_node, V4SI_type_node, NULL_TREE); |
fbe5eb6d | 13329 | tree v4si_ftype_v2df |
b4de2f7d | 13330 | = build_function_type_list (V4SI_type_node, V2DF_type_node, NULL_TREE); |
fbe5eb6d | 13331 | tree v2si_ftype_v2df |
b4de2f7d | 13332 | = build_function_type_list (V2SI_type_node, V2DF_type_node, NULL_TREE); |
fbe5eb6d | 13333 | tree v4sf_ftype_v2df |
b4de2f7d | 13334 | = build_function_type_list (V4SF_type_node, V2DF_type_node, NULL_TREE); |
fbe5eb6d | 13335 | tree v2df_ftype_v2si |
b4de2f7d | 13336 | = build_function_type_list (V2DF_type_node, V2SI_type_node, NULL_TREE); |
fbe5eb6d | 13337 | tree v2df_ftype_v4sf |
b4de2f7d | 13338 | = build_function_type_list (V2DF_type_node, V4SF_type_node, NULL_TREE); |
fbe5eb6d | 13339 | tree int_ftype_v2df |
b4de2f7d | 13340 | = build_function_type_list (integer_type_node, V2DF_type_node, NULL_TREE); |
453ee231 JH |
13341 | tree int64_ftype_v2df |
13342 | = build_function_type_list (long_long_integer_type_node, | |
b96a374d | 13343 | V2DF_type_node, NULL_TREE); |
fbe5eb6d | 13344 | tree v2df_ftype_v2df_int |
b4de2f7d AH |
13345 | = build_function_type_list (V2DF_type_node, |
13346 | V2DF_type_node, integer_type_node, NULL_TREE); | |
453ee231 JH |
13347 | tree v2df_ftype_v2df_int64 |
13348 | = build_function_type_list (V2DF_type_node, | |
13349 | V2DF_type_node, long_long_integer_type_node, | |
13350 | NULL_TREE); | |
fbe5eb6d | 13351 | tree v4sf_ftype_v4sf_v2df |
b4de2f7d AH |
13352 | = build_function_type_list (V4SF_type_node, |
13353 | V4SF_type_node, V2DF_type_node, NULL_TREE); | |
fbe5eb6d | 13354 | tree v2df_ftype_v2df_v4sf |
b4de2f7d AH |
13355 | = build_function_type_list (V2DF_type_node, |
13356 | V2DF_type_node, V4SF_type_node, NULL_TREE); | |
fbe5eb6d | 13357 | tree v2df_ftype_v2df_v2df_int |
b4de2f7d AH |
13358 | = build_function_type_list (V2DF_type_node, |
13359 | V2DF_type_node, V2DF_type_node, | |
13360 | integer_type_node, | |
13361 | NULL_TREE); | |
fbe5eb6d | 13362 | tree v2df_ftype_v2df_pv2si |
b4de2f7d AH |
13363 | = build_function_type_list (V2DF_type_node, |
13364 | V2DF_type_node, pv2si_type_node, NULL_TREE); | |
fbe5eb6d | 13365 | tree void_ftype_pv2si_v2df |
b4de2f7d AH |
13366 | = build_function_type_list (void_type_node, |
13367 | pv2si_type_node, V2DF_type_node, NULL_TREE); | |
fbe5eb6d | 13368 | tree void_ftype_pdouble_v2df |
b4de2f7d AH |
13369 | = build_function_type_list (void_type_node, |
13370 | pdouble_type_node, V2DF_type_node, NULL_TREE); | |
fbe5eb6d | 13371 | tree void_ftype_pint_int |
b4de2f7d AH |
13372 | = build_function_type_list (void_type_node, |
13373 | pint_type_node, integer_type_node, NULL_TREE); | |
fbe5eb6d | 13374 | tree void_ftype_v16qi_v16qi_pchar |
b4de2f7d AH |
13375 | = build_function_type_list (void_type_node, |
13376 | V16QI_type_node, V16QI_type_node, | |
13377 | pchar_type_node, NULL_TREE); | |
068f5dea JH |
13378 | tree v2df_ftype_pcdouble |
13379 | = build_function_type_list (V2DF_type_node, pcdouble_type_node, NULL_TREE); | |
fbe5eb6d | 13380 | tree v2df_ftype_v2df_v2df |
b4de2f7d AH |
13381 | = build_function_type_list (V2DF_type_node, |
13382 | V2DF_type_node, V2DF_type_node, NULL_TREE); | |
fbe5eb6d | 13383 | tree v16qi_ftype_v16qi_v16qi |
b4de2f7d AH |
13384 | = build_function_type_list (V16QI_type_node, |
13385 | V16QI_type_node, V16QI_type_node, NULL_TREE); | |
fbe5eb6d | 13386 | tree v8hi_ftype_v8hi_v8hi |
b4de2f7d AH |
13387 | = build_function_type_list (V8HI_type_node, |
13388 | V8HI_type_node, V8HI_type_node, NULL_TREE); | |
fbe5eb6d | 13389 | tree v4si_ftype_v4si_v4si |
b4de2f7d AH |
13390 | = build_function_type_list (V4SI_type_node, |
13391 | V4SI_type_node, V4SI_type_node, NULL_TREE); | |
fbe5eb6d | 13392 | tree v2di_ftype_v2di_v2di |
b4de2f7d AH |
13393 | = build_function_type_list (V2DI_type_node, |
13394 | V2DI_type_node, V2DI_type_node, NULL_TREE); | |
fbe5eb6d | 13395 | tree v2di_ftype_v2df_v2df |
b4de2f7d AH |
13396 | = build_function_type_list (V2DI_type_node, |
13397 | V2DF_type_node, V2DF_type_node, NULL_TREE); | |
fbe5eb6d | 13398 | tree v2df_ftype_v2df |
b4de2f7d | 13399 | = build_function_type_list (V2DF_type_node, V2DF_type_node, NULL_TREE); |
fbe5eb6d | 13400 | tree v2df_ftype_double |
b4de2f7d | 13401 | = build_function_type_list (V2DF_type_node, double_type_node, NULL_TREE); |
fbe5eb6d | 13402 | tree v2df_ftype_double_double |
b4de2f7d AH |
13403 | = build_function_type_list (V2DF_type_node, |
13404 | double_type_node, double_type_node, NULL_TREE); | |
fbe5eb6d | 13405 | tree int_ftype_v8hi_int |
b4de2f7d AH |
13406 | = build_function_type_list (integer_type_node, |
13407 | V8HI_type_node, integer_type_node, NULL_TREE); | |
fbe5eb6d | 13408 | tree v8hi_ftype_v8hi_int_int |
b4de2f7d AH |
13409 | = build_function_type_list (V8HI_type_node, |
13410 | V8HI_type_node, integer_type_node, | |
13411 | integer_type_node, NULL_TREE); | |
916b60b7 | 13412 | tree v2di_ftype_v2di_int |
b4de2f7d AH |
13413 | = build_function_type_list (V2DI_type_node, |
13414 | V2DI_type_node, integer_type_node, NULL_TREE); | |
fbe5eb6d | 13415 | tree v4si_ftype_v4si_int |
b4de2f7d AH |
13416 | = build_function_type_list (V4SI_type_node, |
13417 | V4SI_type_node, integer_type_node, NULL_TREE); | |
fbe5eb6d | 13418 | tree v8hi_ftype_v8hi_int |
b4de2f7d AH |
13419 | = build_function_type_list (V8HI_type_node, |
13420 | V8HI_type_node, integer_type_node, NULL_TREE); | |
916b60b7 | 13421 | tree v8hi_ftype_v8hi_v2di |
b4de2f7d AH |
13422 | = build_function_type_list (V8HI_type_node, |
13423 | V8HI_type_node, V2DI_type_node, NULL_TREE); | |
916b60b7 | 13424 | tree v4si_ftype_v4si_v2di |
b4de2f7d AH |
13425 | = build_function_type_list (V4SI_type_node, |
13426 | V4SI_type_node, V2DI_type_node, NULL_TREE); | |
916b60b7 | 13427 | tree v4si_ftype_v8hi_v8hi |
b4de2f7d AH |
13428 | = build_function_type_list (V4SI_type_node, |
13429 | V8HI_type_node, V8HI_type_node, NULL_TREE); | |
916b60b7 | 13430 | tree di_ftype_v8qi_v8qi |
b4de2f7d AH |
13431 | = build_function_type_list (long_long_unsigned_type_node, |
13432 | V8QI_type_node, V8QI_type_node, NULL_TREE); | |
916b60b7 | 13433 | tree v2di_ftype_v16qi_v16qi |
b4de2f7d AH |
13434 | = build_function_type_list (V2DI_type_node, |
13435 | V16QI_type_node, V16QI_type_node, NULL_TREE); | |
916b60b7 | 13436 | tree int_ftype_v16qi |
b4de2f7d | 13437 | = build_function_type_list (integer_type_node, V16QI_type_node, NULL_TREE); |
068f5dea JH |
13438 | tree v16qi_ftype_pcchar |
13439 | = build_function_type_list (V16QI_type_node, pcchar_type_node, NULL_TREE); | |
f02e1358 JH |
13440 | tree void_ftype_pchar_v16qi |
13441 | = build_function_type_list (void_type_node, | |
13442 | pchar_type_node, V16QI_type_node, NULL_TREE); | |
068f5dea JH |
13443 | tree v4si_ftype_pcint |
13444 | = build_function_type_list (V4SI_type_node, pcint_type_node, NULL_TREE); | |
13445 | tree void_ftype_pcint_v4si | |
f02e1358 | 13446 | = build_function_type_list (void_type_node, |
068f5dea | 13447 | pcint_type_node, V4SI_type_node, NULL_TREE); |
f02e1358 JH |
13448 | tree v2di_ftype_v2di |
13449 | = build_function_type_list (V2DI_type_node, V2DI_type_node, NULL_TREE); | |
47f339cf | 13450 | |
f8a1ebc6 JH |
13451 | tree float80_type; |
13452 | tree float128_type; | |
13453 | ||
13454 | /* The __float80 type. */ | |
13455 | if (TYPE_MODE (long_double_type_node) == XFmode) | |
13456 | (*lang_hooks.types.register_builtin_type) (long_double_type_node, | |
13457 | "__float80"); | |
13458 | else | |
13459 | { | |
13460 | /* The __float80 type. */ | |
13461 | float80_type = make_node (REAL_TYPE); | |
13462 | TYPE_PRECISION (float80_type) = 96; | |
13463 | layout_type (float80_type); | |
13464 | (*lang_hooks.types.register_builtin_type) (float80_type, "__float80"); | |
13465 | } | |
13466 | ||
13467 | float128_type = make_node (REAL_TYPE); | |
13468 | TYPE_PRECISION (float128_type) = 128; | |
13469 | layout_type (float128_type); | |
13470 | (*lang_hooks.types.register_builtin_type) (float128_type, "__float128"); | |
13471 | ||
bd793c65 BS |
13472 | /* Add all builtins that are more or less simple operations on two |
13473 | operands. */ | |
ca7558fc | 13474 | for (i = 0, d = bdesc_2arg; i < ARRAY_SIZE (bdesc_2arg); i++, d++) |
bd793c65 BS |
13475 | { |
13476 | /* Use one of the operands; the target can have a different mode for | |
13477 | mask-generating compares. */ | |
13478 | enum machine_mode mode; | |
13479 | tree type; | |
13480 | ||
13481 | if (d->name == 0) | |
13482 | continue; | |
13483 | mode = insn_data[d->icode].operand[1].mode; | |
13484 | ||
bd793c65 BS |
13485 | switch (mode) |
13486 | { | |
fbe5eb6d BS |
13487 | case V16QImode: |
13488 | type = v16qi_ftype_v16qi_v16qi; | |
13489 | break; | |
13490 | case V8HImode: | |
13491 | type = v8hi_ftype_v8hi_v8hi; | |
13492 | break; | |
13493 | case V4SImode: | |
13494 | type = v4si_ftype_v4si_v4si; | |
13495 | break; | |
13496 | case V2DImode: | |
13497 | type = v2di_ftype_v2di_v2di; | |
13498 | break; | |
13499 | case V2DFmode: | |
13500 | type = v2df_ftype_v2df_v2df; | |
13501 | break; | |
13502 | case TImode: | |
13503 | type = ti_ftype_ti_ti; | |
13504 | break; | |
bd793c65 BS |
13505 | case V4SFmode: |
13506 | type = v4sf_ftype_v4sf_v4sf; | |
13507 | break; | |
13508 | case V8QImode: | |
13509 | type = v8qi_ftype_v8qi_v8qi; | |
13510 | break; | |
13511 | case V4HImode: | |
13512 | type = v4hi_ftype_v4hi_v4hi; | |
13513 | break; | |
13514 | case V2SImode: | |
13515 | type = v2si_ftype_v2si_v2si; | |
13516 | break; | |
bd793c65 BS |
13517 | case DImode: |
13518 | type = di_ftype_di_di; | |
13519 | break; | |
13520 | ||
13521 | default: | |
13522 | abort (); | |
13523 | } | |
0f290768 | 13524 | |
bd793c65 BS |
13525 | /* Override for comparisons. */ |
13526 | if (d->icode == CODE_FOR_maskcmpv4sf3 | |
13527 | || d->icode == CODE_FOR_maskncmpv4sf3 | |
13528 | || d->icode == CODE_FOR_vmmaskcmpv4sf3 | |
13529 | || d->icode == CODE_FOR_vmmaskncmpv4sf3) | |
13530 | type = v4si_ftype_v4sf_v4sf; | |
13531 | ||
fbe5eb6d BS |
13532 | if (d->icode == CODE_FOR_maskcmpv2df3 |
13533 | || d->icode == CODE_FOR_maskncmpv2df3 | |
13534 | || d->icode == CODE_FOR_vmmaskcmpv2df3 | |
13535 | || d->icode == CODE_FOR_vmmaskncmpv2df3) | |
13536 | type = v2di_ftype_v2df_v2df; | |
13537 | ||
eeb06b1b | 13538 | def_builtin (d->mask, d->name, type, d->code); |
bd793c65 BS |
13539 | } |
13540 | ||
13541 | /* Add the remaining MMX insns with somewhat more complicated types. */ | |
eeb06b1b BS |
13542 | def_builtin (MASK_MMX, "__builtin_ia32_mmx_zero", di_ftype_void, IX86_BUILTIN_MMX_ZERO); |
13543 | def_builtin (MASK_MMX, "__builtin_ia32_emms", void_ftype_void, IX86_BUILTIN_EMMS); | |
eeb06b1b BS |
13544 | def_builtin (MASK_MMX, "__builtin_ia32_psllw", v4hi_ftype_v4hi_di, IX86_BUILTIN_PSLLW); |
13545 | def_builtin (MASK_MMX, "__builtin_ia32_pslld", v2si_ftype_v2si_di, IX86_BUILTIN_PSLLD); | |
13546 | def_builtin (MASK_MMX, "__builtin_ia32_psllq", di_ftype_di_di, IX86_BUILTIN_PSLLQ); | |
13547 | ||
13548 | def_builtin (MASK_MMX, "__builtin_ia32_psrlw", v4hi_ftype_v4hi_di, IX86_BUILTIN_PSRLW); | |
13549 | def_builtin (MASK_MMX, "__builtin_ia32_psrld", v2si_ftype_v2si_di, IX86_BUILTIN_PSRLD); | |
13550 | def_builtin (MASK_MMX, "__builtin_ia32_psrlq", di_ftype_di_di, IX86_BUILTIN_PSRLQ); | |
13551 | ||
13552 | def_builtin (MASK_MMX, "__builtin_ia32_psraw", v4hi_ftype_v4hi_di, IX86_BUILTIN_PSRAW); | |
13553 | def_builtin (MASK_MMX, "__builtin_ia32_psrad", v2si_ftype_v2si_di, IX86_BUILTIN_PSRAD); | |
13554 | ||
13555 | def_builtin (MASK_MMX, "__builtin_ia32_pshufw", v4hi_ftype_v4hi_int, IX86_BUILTIN_PSHUFW); | |
13556 | def_builtin (MASK_MMX, "__builtin_ia32_pmaddwd", v2si_ftype_v4hi_v4hi, IX86_BUILTIN_PMADDWD); | |
0f290768 | 13557 | |
bd793c65 | 13558 | /* comi/ucomi insns. */ |
ca7558fc | 13559 | for (i = 0, d = bdesc_comi; i < ARRAY_SIZE (bdesc_comi); i++, d++) |
fbe5eb6d BS |
13560 | if (d->mask == MASK_SSE2) |
13561 | def_builtin (d->mask, d->name, int_ftype_v2df_v2df, d->code); | |
13562 | else | |
13563 | def_builtin (d->mask, d->name, int_ftype_v4sf_v4sf, d->code); | |
bd793c65 | 13564 | |
1255c85c BS |
13565 | def_builtin (MASK_MMX, "__builtin_ia32_packsswb", v8qi_ftype_v4hi_v4hi, IX86_BUILTIN_PACKSSWB); |
13566 | def_builtin (MASK_MMX, "__builtin_ia32_packssdw", v4hi_ftype_v2si_v2si, IX86_BUILTIN_PACKSSDW); | |
13567 | def_builtin (MASK_MMX, "__builtin_ia32_packuswb", v8qi_ftype_v4hi_v4hi, IX86_BUILTIN_PACKUSWB); | |
bd793c65 | 13568 | |
37f22004 L |
13569 | def_builtin (MASK_SSE, "__builtin_ia32_ldmxcsr", void_ftype_unsigned, IX86_BUILTIN_LDMXCSR); |
13570 | def_builtin (MASK_SSE, "__builtin_ia32_stmxcsr", unsigned_ftype_void, IX86_BUILTIN_STMXCSR); | |
13571 | def_builtin (MASK_SSE, "__builtin_ia32_cvtpi2ps", v4sf_ftype_v4sf_v2si, IX86_BUILTIN_CVTPI2PS); | |
13572 | def_builtin (MASK_SSE, "__builtin_ia32_cvtps2pi", v2si_ftype_v4sf, IX86_BUILTIN_CVTPS2PI); | |
13573 | def_builtin (MASK_SSE, "__builtin_ia32_cvtsi2ss", v4sf_ftype_v4sf_int, IX86_BUILTIN_CVTSI2SS); | |
13574 | def_builtin (MASK_SSE | MASK_64BIT, "__builtin_ia32_cvtsi642ss", v4sf_ftype_v4sf_int64, IX86_BUILTIN_CVTSI642SS); | |
13575 | def_builtin (MASK_SSE, "__builtin_ia32_cvtss2si", int_ftype_v4sf, IX86_BUILTIN_CVTSS2SI); | |
13576 | def_builtin (MASK_SSE | MASK_64BIT, "__builtin_ia32_cvtss2si64", int64_ftype_v4sf, IX86_BUILTIN_CVTSS2SI64); | |
13577 | def_builtin (MASK_SSE, "__builtin_ia32_cvttps2pi", v2si_ftype_v4sf, IX86_BUILTIN_CVTTPS2PI); | |
13578 | def_builtin (MASK_SSE, "__builtin_ia32_cvttss2si", int_ftype_v4sf, IX86_BUILTIN_CVTTSS2SI); | |
13579 | def_builtin (MASK_SSE | MASK_64BIT, "__builtin_ia32_cvttss2si64", int64_ftype_v4sf, IX86_BUILTIN_CVTTSS2SI64); | |
13580 | ||
13581 | def_builtin (MASK_SSE | MASK_3DNOW_A, "__builtin_ia32_pextrw", int_ftype_v4hi_int, IX86_BUILTIN_PEXTRW); | |
13582 | def_builtin (MASK_SSE | MASK_3DNOW_A, "__builtin_ia32_pinsrw", v4hi_ftype_v4hi_int_int, IX86_BUILTIN_PINSRW); | |
13583 | ||
13584 | def_builtin (MASK_SSE | MASK_3DNOW_A, "__builtin_ia32_maskmovq", void_ftype_v8qi_v8qi_pchar, IX86_BUILTIN_MASKMOVQ); | |
13585 | ||
13586 | def_builtin (MASK_SSE, "__builtin_ia32_loadaps", v4sf_ftype_pcfloat, IX86_BUILTIN_LOADAPS); | |
13587 | def_builtin (MASK_SSE, "__builtin_ia32_loadups", v4sf_ftype_pcfloat, IX86_BUILTIN_LOADUPS); | |
13588 | def_builtin (MASK_SSE, "__builtin_ia32_loadss", v4sf_ftype_pcfloat, IX86_BUILTIN_LOADSS); | |
13589 | def_builtin (MASK_SSE, "__builtin_ia32_storeaps", void_ftype_pfloat_v4sf, IX86_BUILTIN_STOREAPS); | |
13590 | def_builtin (MASK_SSE, "__builtin_ia32_storeups", void_ftype_pfloat_v4sf, IX86_BUILTIN_STOREUPS); | |
13591 | def_builtin (MASK_SSE, "__builtin_ia32_storess", void_ftype_pfloat_v4sf, IX86_BUILTIN_STORESS); | |
13592 | ||
13593 | def_builtin (MASK_SSE, "__builtin_ia32_loadhps", v4sf_ftype_v4sf_pv2si, IX86_BUILTIN_LOADHPS); | |
13594 | def_builtin (MASK_SSE, "__builtin_ia32_loadlps", v4sf_ftype_v4sf_pv2si, IX86_BUILTIN_LOADLPS); | |
13595 | def_builtin (MASK_SSE, "__builtin_ia32_storehps", void_ftype_pv2si_v4sf, IX86_BUILTIN_STOREHPS); | |
13596 | def_builtin (MASK_SSE, "__builtin_ia32_storelps", void_ftype_pv2si_v4sf, IX86_BUILTIN_STORELPS); | |
13597 | ||
13598 | def_builtin (MASK_SSE, "__builtin_ia32_movmskps", int_ftype_v4sf, IX86_BUILTIN_MOVMSKPS); | |
13599 | def_builtin (MASK_SSE | MASK_3DNOW_A, "__builtin_ia32_pmovmskb", int_ftype_v8qi, IX86_BUILTIN_PMOVMSKB); | |
13600 | def_builtin (MASK_SSE, "__builtin_ia32_movntps", void_ftype_pfloat_v4sf, IX86_BUILTIN_MOVNTPS); | |
13601 | def_builtin (MASK_SSE | MASK_3DNOW_A, "__builtin_ia32_movntq", void_ftype_pdi_di, IX86_BUILTIN_MOVNTQ); | |
13602 | ||
13603 | def_builtin (MASK_SSE | MASK_3DNOW_A, "__builtin_ia32_sfence", void_ftype_void, IX86_BUILTIN_SFENCE); | |
13604 | ||
13605 | def_builtin (MASK_SSE | MASK_3DNOW_A, "__builtin_ia32_psadbw", di_ftype_v8qi_v8qi, IX86_BUILTIN_PSADBW); | |
13606 | ||
13607 | def_builtin (MASK_SSE, "__builtin_ia32_rcpps", v4sf_ftype_v4sf, IX86_BUILTIN_RCPPS); | |
13608 | def_builtin (MASK_SSE, "__builtin_ia32_rcpss", v4sf_ftype_v4sf, IX86_BUILTIN_RCPSS); | |
13609 | def_builtin (MASK_SSE, "__builtin_ia32_rsqrtps", v4sf_ftype_v4sf, IX86_BUILTIN_RSQRTPS); | |
13610 | def_builtin (MASK_SSE, "__builtin_ia32_rsqrtss", v4sf_ftype_v4sf, IX86_BUILTIN_RSQRTSS); | |
13611 | def_builtin (MASK_SSE, "__builtin_ia32_sqrtps", v4sf_ftype_v4sf, IX86_BUILTIN_SQRTPS); | |
13612 | def_builtin (MASK_SSE, "__builtin_ia32_sqrtss", v4sf_ftype_v4sf, IX86_BUILTIN_SQRTSS); | |
13613 | ||
13614 | def_builtin (MASK_SSE, "__builtin_ia32_shufps", v4sf_ftype_v4sf_v4sf_int, IX86_BUILTIN_SHUFPS); | |
bd793c65 | 13615 | |
47f339cf BS |
13616 | /* Original 3DNow! */ |
13617 | def_builtin (MASK_3DNOW, "__builtin_ia32_femms", void_ftype_void, IX86_BUILTIN_FEMMS); | |
13618 | def_builtin (MASK_3DNOW, "__builtin_ia32_pavgusb", v8qi_ftype_v8qi_v8qi, IX86_BUILTIN_PAVGUSB); | |
13619 | def_builtin (MASK_3DNOW, "__builtin_ia32_pf2id", v2si_ftype_v2sf, IX86_BUILTIN_PF2ID); | |
13620 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfacc", v2sf_ftype_v2sf_v2sf, IX86_BUILTIN_PFACC); | |
13621 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfadd", v2sf_ftype_v2sf_v2sf, IX86_BUILTIN_PFADD); | |
13622 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfcmpeq", v2si_ftype_v2sf_v2sf, IX86_BUILTIN_PFCMPEQ); | |
13623 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfcmpge", v2si_ftype_v2sf_v2sf, IX86_BUILTIN_PFCMPGE); | |
13624 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfcmpgt", v2si_ftype_v2sf_v2sf, IX86_BUILTIN_PFCMPGT); | |
13625 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfmax", v2sf_ftype_v2sf_v2sf, IX86_BUILTIN_PFMAX); | |
13626 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfmin", v2sf_ftype_v2sf_v2sf, IX86_BUILTIN_PFMIN); | |
13627 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfmul", v2sf_ftype_v2sf_v2sf, IX86_BUILTIN_PFMUL); | |
13628 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfrcp", v2sf_ftype_v2sf, IX86_BUILTIN_PFRCP); | |
13629 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfrcpit1", v2sf_ftype_v2sf_v2sf, IX86_BUILTIN_PFRCPIT1); | |
13630 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfrcpit2", v2sf_ftype_v2sf_v2sf, IX86_BUILTIN_PFRCPIT2); | |
13631 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfrsqrt", v2sf_ftype_v2sf, IX86_BUILTIN_PFRSQRT); | |
13632 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfrsqit1", v2sf_ftype_v2sf_v2sf, IX86_BUILTIN_PFRSQIT1); | |
13633 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfsub", v2sf_ftype_v2sf_v2sf, IX86_BUILTIN_PFSUB); | |
13634 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfsubr", v2sf_ftype_v2sf_v2sf, IX86_BUILTIN_PFSUBR); | |
13635 | def_builtin (MASK_3DNOW, "__builtin_ia32_pi2fd", v2sf_ftype_v2si, IX86_BUILTIN_PI2FD); | |
13636 | def_builtin (MASK_3DNOW, "__builtin_ia32_pmulhrw", v4hi_ftype_v4hi_v4hi, IX86_BUILTIN_PMULHRW); | |
47f339cf BS |
13637 | |
13638 | /* 3DNow! extension as used in the Athlon CPU. */ | |
13639 | def_builtin (MASK_3DNOW_A, "__builtin_ia32_pf2iw", v2si_ftype_v2sf, IX86_BUILTIN_PF2IW); | |
13640 | def_builtin (MASK_3DNOW_A, "__builtin_ia32_pfnacc", v2sf_ftype_v2sf_v2sf, IX86_BUILTIN_PFNACC); | |
13641 | def_builtin (MASK_3DNOW_A, "__builtin_ia32_pfpnacc", v2sf_ftype_v2sf_v2sf, IX86_BUILTIN_PFPNACC); | |
13642 | def_builtin (MASK_3DNOW_A, "__builtin_ia32_pi2fw", v2sf_ftype_v2si, IX86_BUILTIN_PI2FW); | |
13643 | def_builtin (MASK_3DNOW_A, "__builtin_ia32_pswapdsf", v2sf_ftype_v2sf, IX86_BUILTIN_PSWAPDSF); | |
13644 | def_builtin (MASK_3DNOW_A, "__builtin_ia32_pswapdsi", v2si_ftype_v2si, IX86_BUILTIN_PSWAPDSI); | |
13645 | ||
37f22004 | 13646 | def_builtin (MASK_SSE, "__builtin_ia32_setzerops", v4sf_ftype_void, IX86_BUILTIN_SSE_ZERO); |
fbe5eb6d BS |
13647 | |
13648 | /* SSE2 */ | |
13649 | def_builtin (MASK_SSE2, "__builtin_ia32_pextrw128", int_ftype_v8hi_int, IX86_BUILTIN_PEXTRW128); | |
13650 | def_builtin (MASK_SSE2, "__builtin_ia32_pinsrw128", v8hi_ftype_v8hi_int_int, IX86_BUILTIN_PINSRW128); | |
13651 | ||
13652 | def_builtin (MASK_SSE2, "__builtin_ia32_maskmovdqu", void_ftype_v16qi_v16qi_pchar, IX86_BUILTIN_MASKMOVDQU); | |
13653 | def_builtin (MASK_SSE2, "__builtin_ia32_movq2dq", v2di_ftype_di, IX86_BUILTIN_MOVQ2DQ); | |
f02e1358 | 13654 | def_builtin (MASK_SSE2, "__builtin_ia32_movdq2q", di_ftype_v2di, IX86_BUILTIN_MOVDQ2Q); |
fbe5eb6d | 13655 | |
068f5dea JH |
13656 | def_builtin (MASK_SSE2, "__builtin_ia32_loadapd", v2df_ftype_pcdouble, IX86_BUILTIN_LOADAPD); |
13657 | def_builtin (MASK_SSE2, "__builtin_ia32_loadupd", v2df_ftype_pcdouble, IX86_BUILTIN_LOADUPD); | |
13658 | def_builtin (MASK_SSE2, "__builtin_ia32_loadsd", v2df_ftype_pcdouble, IX86_BUILTIN_LOADSD); | |
fbe5eb6d BS |
13659 | def_builtin (MASK_SSE2, "__builtin_ia32_storeapd", void_ftype_pdouble_v2df, IX86_BUILTIN_STOREAPD); |
13660 | def_builtin (MASK_SSE2, "__builtin_ia32_storeupd", void_ftype_pdouble_v2df, IX86_BUILTIN_STOREUPD); | |
13661 | def_builtin (MASK_SSE2, "__builtin_ia32_storesd", void_ftype_pdouble_v2df, IX86_BUILTIN_STORESD); | |
13662 | ||
13663 | def_builtin (MASK_SSE2, "__builtin_ia32_loadhpd", v2df_ftype_v2df_pv2si, IX86_BUILTIN_LOADHPD); | |
13664 | def_builtin (MASK_SSE2, "__builtin_ia32_loadlpd", v2df_ftype_v2df_pv2si, IX86_BUILTIN_LOADLPD); | |
13665 | def_builtin (MASK_SSE2, "__builtin_ia32_storehpd", void_ftype_pv2si_v2df, IX86_BUILTIN_STOREHPD); | |
13666 | def_builtin (MASK_SSE2, "__builtin_ia32_storelpd", void_ftype_pv2si_v2df, IX86_BUILTIN_STORELPD); | |
13667 | ||
13668 | def_builtin (MASK_SSE2, "__builtin_ia32_movmskpd", int_ftype_v2df, IX86_BUILTIN_MOVMSKPD); | |
916b60b7 | 13669 | def_builtin (MASK_SSE2, "__builtin_ia32_pmovmskb128", int_ftype_v16qi, IX86_BUILTIN_PMOVMSKB128); |
fbe5eb6d BS |
13670 | def_builtin (MASK_SSE2, "__builtin_ia32_movnti", void_ftype_pint_int, IX86_BUILTIN_MOVNTI); |
13671 | def_builtin (MASK_SSE2, "__builtin_ia32_movntpd", void_ftype_pdouble_v2df, IX86_BUILTIN_MOVNTPD); | |
916b60b7 | 13672 | def_builtin (MASK_SSE2, "__builtin_ia32_movntdq", void_ftype_pv2di_v2di, IX86_BUILTIN_MOVNTDQ); |
fbe5eb6d BS |
13673 | |
13674 | def_builtin (MASK_SSE2, "__builtin_ia32_pshufd", v4si_ftype_v4si_int, IX86_BUILTIN_PSHUFD); | |
13675 | def_builtin (MASK_SSE2, "__builtin_ia32_pshuflw", v8hi_ftype_v8hi_int, IX86_BUILTIN_PSHUFLW); | |
13676 | def_builtin (MASK_SSE2, "__builtin_ia32_pshufhw", v8hi_ftype_v8hi_int, IX86_BUILTIN_PSHUFHW); | |
916b60b7 | 13677 | def_builtin (MASK_SSE2, "__builtin_ia32_psadbw128", v2di_ftype_v16qi_v16qi, IX86_BUILTIN_PSADBW128); |
fbe5eb6d BS |
13678 | |
13679 | def_builtin (MASK_SSE2, "__builtin_ia32_sqrtpd", v2df_ftype_v2df, IX86_BUILTIN_SQRTPD); | |
13680 | def_builtin (MASK_SSE2, "__builtin_ia32_sqrtsd", v2df_ftype_v2df, IX86_BUILTIN_SQRTSD); | |
13681 | ||
13682 | def_builtin (MASK_SSE2, "__builtin_ia32_shufpd", v2df_ftype_v2df_v2df_int, IX86_BUILTIN_SHUFPD); | |
13683 | ||
13684 | def_builtin (MASK_SSE2, "__builtin_ia32_cvtdq2pd", v2df_ftype_v4si, IX86_BUILTIN_CVTDQ2PD); | |
916b60b7 | 13685 | def_builtin (MASK_SSE2, "__builtin_ia32_cvtdq2ps", v4sf_ftype_v4si, IX86_BUILTIN_CVTDQ2PS); |
fbe5eb6d BS |
13686 | |
13687 | def_builtin (MASK_SSE2, "__builtin_ia32_cvtpd2dq", v4si_ftype_v2df, IX86_BUILTIN_CVTPD2DQ); | |
13688 | def_builtin (MASK_SSE2, "__builtin_ia32_cvtpd2pi", v2si_ftype_v2df, IX86_BUILTIN_CVTPD2PI); | |
13689 | def_builtin (MASK_SSE2, "__builtin_ia32_cvtpd2ps", v4sf_ftype_v2df, IX86_BUILTIN_CVTPD2PS); | |
13690 | def_builtin (MASK_SSE2, "__builtin_ia32_cvttpd2dq", v4si_ftype_v2df, IX86_BUILTIN_CVTTPD2DQ); | |
13691 | def_builtin (MASK_SSE2, "__builtin_ia32_cvttpd2pi", v2si_ftype_v2df, IX86_BUILTIN_CVTTPD2PI); | |
13692 | ||
13693 | def_builtin (MASK_SSE2, "__builtin_ia32_cvtpi2pd", v2df_ftype_v2si, IX86_BUILTIN_CVTPI2PD); | |
13694 | ||
13695 | def_builtin (MASK_SSE2, "__builtin_ia32_cvtsd2si", int_ftype_v2df, IX86_BUILTIN_CVTSD2SI); | |
13696 | def_builtin (MASK_SSE2, "__builtin_ia32_cvttsd2si", int_ftype_v2df, IX86_BUILTIN_CVTTSD2SI); | |
37f22004 L |
13697 | def_builtin (MASK_SSE2 | MASK_64BIT, "__builtin_ia32_cvtsd2si64", int64_ftype_v2df, IX86_BUILTIN_CVTSD2SI64); |
13698 | def_builtin (MASK_SSE2 | MASK_64BIT, "__builtin_ia32_cvttsd2si64", int64_ftype_v2df, IX86_BUILTIN_CVTTSD2SI64); | |
fbe5eb6d BS |
13699 | |
13700 | def_builtin (MASK_SSE2, "__builtin_ia32_cvtps2dq", v4si_ftype_v4sf, IX86_BUILTIN_CVTPS2DQ); | |
13701 | def_builtin (MASK_SSE2, "__builtin_ia32_cvtps2pd", v2df_ftype_v4sf, IX86_BUILTIN_CVTPS2PD); | |
13702 | def_builtin (MASK_SSE2, "__builtin_ia32_cvttps2dq", v4si_ftype_v4sf, IX86_BUILTIN_CVTTPS2DQ); | |
13703 | ||
13704 | def_builtin (MASK_SSE2, "__builtin_ia32_cvtsi2sd", v2df_ftype_v2df_int, IX86_BUILTIN_CVTSI2SD); | |
37f22004 | 13705 | def_builtin (MASK_SSE2 | MASK_64BIT, "__builtin_ia32_cvtsi642sd", v2df_ftype_v2df_int64, IX86_BUILTIN_CVTSI642SD); |
fbe5eb6d BS |
13706 | def_builtin (MASK_SSE2, "__builtin_ia32_cvtsd2ss", v4sf_ftype_v4sf_v2df, IX86_BUILTIN_CVTSD2SS); |
13707 | def_builtin (MASK_SSE2, "__builtin_ia32_cvtss2sd", v2df_ftype_v2df_v4sf, IX86_BUILTIN_CVTSS2SD); | |
13708 | ||
13709 | def_builtin (MASK_SSE2, "__builtin_ia32_setpd1", v2df_ftype_double, IX86_BUILTIN_SETPD1); | |
13710 | def_builtin (MASK_SSE2, "__builtin_ia32_setpd", v2df_ftype_double_double, IX86_BUILTIN_SETPD); | |
13711 | def_builtin (MASK_SSE2, "__builtin_ia32_setzeropd", ti_ftype_void, IX86_BUILTIN_CLRPD); | |
068f5dea JH |
13712 | def_builtin (MASK_SSE2, "__builtin_ia32_loadpd1", v2df_ftype_pcdouble, IX86_BUILTIN_LOADPD1); |
13713 | def_builtin (MASK_SSE2, "__builtin_ia32_loadrpd", v2df_ftype_pcdouble, IX86_BUILTIN_LOADRPD); | |
fbe5eb6d BS |
13714 | def_builtin (MASK_SSE2, "__builtin_ia32_storepd1", void_ftype_pdouble_v2df, IX86_BUILTIN_STOREPD1); |
13715 | def_builtin (MASK_SSE2, "__builtin_ia32_storerpd", void_ftype_pdouble_v2df, IX86_BUILTIN_STORERPD); | |
13716 | ||
068f5dea | 13717 | def_builtin (MASK_SSE2, "__builtin_ia32_clflush", void_ftype_pcvoid, IX86_BUILTIN_CLFLUSH); |
fbe5eb6d BS |
13718 | def_builtin (MASK_SSE2, "__builtin_ia32_lfence", void_ftype_void, IX86_BUILTIN_LFENCE); |
13719 | def_builtin (MASK_SSE2, "__builtin_ia32_mfence", void_ftype_void, IX86_BUILTIN_MFENCE); | |
916b60b7 | 13720 | |
068f5dea JH |
13721 | def_builtin (MASK_SSE2, "__builtin_ia32_loaddqa", v16qi_ftype_pcchar, IX86_BUILTIN_LOADDQA); |
13722 | def_builtin (MASK_SSE2, "__builtin_ia32_loaddqu", v16qi_ftype_pcchar, IX86_BUILTIN_LOADDQU); | |
13723 | def_builtin (MASK_SSE2, "__builtin_ia32_loadd", v4si_ftype_pcint, IX86_BUILTIN_LOADD); | |
f02e1358 JH |
13724 | def_builtin (MASK_SSE2, "__builtin_ia32_storedqa", void_ftype_pchar_v16qi, IX86_BUILTIN_STOREDQA); |
13725 | def_builtin (MASK_SSE2, "__builtin_ia32_storedqu", void_ftype_pchar_v16qi, IX86_BUILTIN_STOREDQU); | |
068f5dea | 13726 | def_builtin (MASK_SSE2, "__builtin_ia32_stored", void_ftype_pcint_v4si, IX86_BUILTIN_STORED); |
f02e1358 JH |
13727 | def_builtin (MASK_SSE2, "__builtin_ia32_movq", v2di_ftype_v2di, IX86_BUILTIN_MOVQ); |
13728 | ||
37f22004 | 13729 | def_builtin (MASK_SSE, "__builtin_ia32_setzero128", v2di_ftype_void, IX86_BUILTIN_CLRTI); |
f02e1358 | 13730 | |
916b60b7 BS |
13731 | def_builtin (MASK_SSE2, "__builtin_ia32_psllw128", v8hi_ftype_v8hi_v2di, IX86_BUILTIN_PSLLW128); |
13732 | def_builtin (MASK_SSE2, "__builtin_ia32_pslld128", v4si_ftype_v4si_v2di, IX86_BUILTIN_PSLLD128); | |
13733 | def_builtin (MASK_SSE2, "__builtin_ia32_psllq128", v2di_ftype_v2di_v2di, IX86_BUILTIN_PSLLQ128); | |
13734 | ||
13735 | def_builtin (MASK_SSE2, "__builtin_ia32_psrlw128", v8hi_ftype_v8hi_v2di, IX86_BUILTIN_PSRLW128); | |
13736 | def_builtin (MASK_SSE2, "__builtin_ia32_psrld128", v4si_ftype_v4si_v2di, IX86_BUILTIN_PSRLD128); | |
13737 | def_builtin (MASK_SSE2, "__builtin_ia32_psrlq128", v2di_ftype_v2di_v2di, IX86_BUILTIN_PSRLQ128); | |
13738 | ||
13739 | def_builtin (MASK_SSE2, "__builtin_ia32_psraw128", v8hi_ftype_v8hi_v2di, IX86_BUILTIN_PSRAW128); | |
13740 | def_builtin (MASK_SSE2, "__builtin_ia32_psrad128", v4si_ftype_v4si_v2di, IX86_BUILTIN_PSRAD128); | |
13741 | ||
ab3146fd | 13742 | def_builtin (MASK_SSE2, "__builtin_ia32_pslldqi128", v2di_ftype_v2di_int, IX86_BUILTIN_PSLLDQI128); |
916b60b7 BS |
13743 | def_builtin (MASK_SSE2, "__builtin_ia32_psllwi128", v8hi_ftype_v8hi_int, IX86_BUILTIN_PSLLWI128); |
13744 | def_builtin (MASK_SSE2, "__builtin_ia32_pslldi128", v4si_ftype_v4si_int, IX86_BUILTIN_PSLLDI128); | |
13745 | def_builtin (MASK_SSE2, "__builtin_ia32_psllqi128", v2di_ftype_v2di_int, IX86_BUILTIN_PSLLQI128); | |
13746 | ||
ab3146fd | 13747 | def_builtin (MASK_SSE2, "__builtin_ia32_psrldqi128", v2di_ftype_v2di_int, IX86_BUILTIN_PSRLDQI128); |
916b60b7 BS |
13748 | def_builtin (MASK_SSE2, "__builtin_ia32_psrlwi128", v8hi_ftype_v8hi_int, IX86_BUILTIN_PSRLWI128); |
13749 | def_builtin (MASK_SSE2, "__builtin_ia32_psrldi128", v4si_ftype_v4si_int, IX86_BUILTIN_PSRLDI128); | |
13750 | def_builtin (MASK_SSE2, "__builtin_ia32_psrlqi128", v2di_ftype_v2di_int, IX86_BUILTIN_PSRLQI128); | |
13751 | ||
13752 | def_builtin (MASK_SSE2, "__builtin_ia32_psrawi128", v8hi_ftype_v8hi_int, IX86_BUILTIN_PSRAWI128); | |
13753 | def_builtin (MASK_SSE2, "__builtin_ia32_psradi128", v4si_ftype_v4si_int, IX86_BUILTIN_PSRADI128); | |
13754 | ||
13755 | def_builtin (MASK_SSE2, "__builtin_ia32_pmaddwd128", v4si_ftype_v8hi_v8hi, IX86_BUILTIN_PMADDWD128); | |
22c7c85e L |
13756 | |
13757 | /* Prescott New Instructions. */ | |
9e200aaf | 13758 | def_builtin (MASK_SSE3, "__builtin_ia32_monitor", |
22c7c85e L |
13759 | void_ftype_pcvoid_unsigned_unsigned, |
13760 | IX86_BUILTIN_MONITOR); | |
9e200aaf | 13761 | def_builtin (MASK_SSE3, "__builtin_ia32_mwait", |
22c7c85e L |
13762 | void_ftype_unsigned_unsigned, |
13763 | IX86_BUILTIN_MWAIT); | |
9e200aaf | 13764 | def_builtin (MASK_SSE3, "__builtin_ia32_movshdup", |
22c7c85e L |
13765 | v4sf_ftype_v4sf, |
13766 | IX86_BUILTIN_MOVSHDUP); | |
9e200aaf | 13767 | def_builtin (MASK_SSE3, "__builtin_ia32_movsldup", |
22c7c85e L |
13768 | v4sf_ftype_v4sf, |
13769 | IX86_BUILTIN_MOVSLDUP); | |
9e200aaf | 13770 | def_builtin (MASK_SSE3, "__builtin_ia32_lddqu", |
22c7c85e | 13771 | v16qi_ftype_pcchar, IX86_BUILTIN_LDDQU); |
9e200aaf | 13772 | def_builtin (MASK_SSE3, "__builtin_ia32_loadddup", |
22c7c85e | 13773 | v2df_ftype_pcdouble, IX86_BUILTIN_LOADDDUP); |
9e200aaf | 13774 | def_builtin (MASK_SSE3, "__builtin_ia32_movddup", |
22c7c85e | 13775 | v2df_ftype_v2df, IX86_BUILTIN_MOVDDUP); |
bd793c65 BS |
13776 | } |
13777 | ||
13778 | /* Errors in the source file can cause expand_expr to return const0_rtx | |
13779 | where we expect a vector. To avoid crashing, use one of the vector | |
13780 | clear instructions. */ | |
13781 | static rtx | |
b96a374d | 13782 | safe_vector_operand (rtx x, enum machine_mode mode) |
bd793c65 BS |
13783 | { |
13784 | if (x != const0_rtx) | |
13785 | return x; | |
13786 | x = gen_reg_rtx (mode); | |
13787 | ||
47f339cf | 13788 | if (VALID_MMX_REG_MODE (mode) || VALID_MMX_REG_MODE_3DNOW (mode)) |
bd793c65 BS |
13789 | emit_insn (gen_mmx_clrdi (mode == DImode ? x |
13790 | : gen_rtx_SUBREG (DImode, x, 0))); | |
13791 | else | |
e37af218 | 13792 | emit_insn (gen_sse_clrv4sf (mode == V4SFmode ? x |
4977bab6 ZW |
13793 | : gen_rtx_SUBREG (V4SFmode, x, 0), |
13794 | CONST0_RTX (V4SFmode))); | |
bd793c65 BS |
13795 | return x; |
13796 | } | |
13797 | ||
13798 | /* Subroutine of ix86_expand_builtin to take care of binop insns. */ | |
13799 | ||
13800 | static rtx | |
b96a374d | 13801 | ix86_expand_binop_builtin (enum insn_code icode, tree arglist, rtx target) |
bd793c65 BS |
13802 | { |
13803 | rtx pat; | |
13804 | tree arg0 = TREE_VALUE (arglist); | |
13805 | tree arg1 = TREE_VALUE (TREE_CHAIN (arglist)); | |
13806 | rtx op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
13807 | rtx op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0); | |
13808 | enum machine_mode tmode = insn_data[icode].operand[0].mode; | |
13809 | enum machine_mode mode0 = insn_data[icode].operand[1].mode; | |
13810 | enum machine_mode mode1 = insn_data[icode].operand[2].mode; | |
13811 | ||
13812 | if (VECTOR_MODE_P (mode0)) | |
13813 | op0 = safe_vector_operand (op0, mode0); | |
13814 | if (VECTOR_MODE_P (mode1)) | |
13815 | op1 = safe_vector_operand (op1, mode1); | |
13816 | ||
13817 | if (! target | |
13818 | || GET_MODE (target) != tmode | |
13819 | || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) | |
13820 | target = gen_reg_rtx (tmode); | |
13821 | ||
d9deed68 JH |
13822 | if (GET_MODE (op1) == SImode && mode1 == TImode) |
13823 | { | |
13824 | rtx x = gen_reg_rtx (V4SImode); | |
13825 | emit_insn (gen_sse2_loadd (x, op1)); | |
13826 | op1 = gen_lowpart (TImode, x); | |
13827 | } | |
13828 | ||
bd793c65 BS |
13829 | /* In case the insn wants input operands in modes different from |
13830 | the result, abort. */ | |
ebe75517 JH |
13831 | if ((GET_MODE (op0) != mode0 && GET_MODE (op0) != VOIDmode) |
13832 | || (GET_MODE (op1) != mode1 && GET_MODE (op1) != VOIDmode)) | |
bd793c65 BS |
13833 | abort (); |
13834 | ||
13835 | if (! (*insn_data[icode].operand[1].predicate) (op0, mode0)) | |
13836 | op0 = copy_to_mode_reg (mode0, op0); | |
13837 | if (! (*insn_data[icode].operand[2].predicate) (op1, mode1)) | |
13838 | op1 = copy_to_mode_reg (mode1, op1); | |
13839 | ||
59bef189 RH |
13840 | /* In the commutative cases, both op0 and op1 are nonimmediate_operand, |
13841 | yet one of the two must not be a memory. This is normally enforced | |
13842 | by expanders, but we didn't bother to create one here. */ | |
13843 | if (GET_CODE (op0) == MEM && GET_CODE (op1) == MEM) | |
13844 | op0 = copy_to_mode_reg (mode0, op0); | |
13845 | ||
bd793c65 BS |
13846 | pat = GEN_FCN (icode) (target, op0, op1); |
13847 | if (! pat) | |
13848 | return 0; | |
13849 | emit_insn (pat); | |
13850 | return target; | |
13851 | } | |
13852 | ||
13853 | /* Subroutine of ix86_expand_builtin to take care of stores. */ | |
13854 | ||
13855 | static rtx | |
b96a374d | 13856 | ix86_expand_store_builtin (enum insn_code icode, tree arglist) |
bd793c65 BS |
13857 | { |
13858 | rtx pat; | |
13859 | tree arg0 = TREE_VALUE (arglist); | |
13860 | tree arg1 = TREE_VALUE (TREE_CHAIN (arglist)); | |
13861 | rtx op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
13862 | rtx op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0); | |
13863 | enum machine_mode mode0 = insn_data[icode].operand[0].mode; | |
13864 | enum machine_mode mode1 = insn_data[icode].operand[1].mode; | |
13865 | ||
13866 | if (VECTOR_MODE_P (mode1)) | |
13867 | op1 = safe_vector_operand (op1, mode1); | |
13868 | ||
13869 | op0 = gen_rtx_MEM (mode0, copy_to_mode_reg (Pmode, op0)); | |
7f0e57bd | 13870 | op1 = copy_to_mode_reg (mode1, op1); |
59bef189 | 13871 | |
bd793c65 BS |
13872 | pat = GEN_FCN (icode) (op0, op1); |
13873 | if (pat) | |
13874 | emit_insn (pat); | |
13875 | return 0; | |
13876 | } | |
13877 | ||
13878 | /* Subroutine of ix86_expand_builtin to take care of unop insns. */ | |
13879 | ||
13880 | static rtx | |
b96a374d AJ |
13881 | ix86_expand_unop_builtin (enum insn_code icode, tree arglist, |
13882 | rtx target, int do_load) | |
bd793c65 BS |
13883 | { |
13884 | rtx pat; | |
13885 | tree arg0 = TREE_VALUE (arglist); | |
13886 | rtx op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
13887 | enum machine_mode tmode = insn_data[icode].operand[0].mode; | |
13888 | enum machine_mode mode0 = insn_data[icode].operand[1].mode; | |
13889 | ||
13890 | if (! target | |
13891 | || GET_MODE (target) != tmode | |
13892 | || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) | |
13893 | target = gen_reg_rtx (tmode); | |
13894 | if (do_load) | |
13895 | op0 = gen_rtx_MEM (mode0, copy_to_mode_reg (Pmode, op0)); | |
13896 | else | |
13897 | { | |
13898 | if (VECTOR_MODE_P (mode0)) | |
13899 | op0 = safe_vector_operand (op0, mode0); | |
13900 | ||
13901 | if (! (*insn_data[icode].operand[1].predicate) (op0, mode0)) | |
13902 | op0 = copy_to_mode_reg (mode0, op0); | |
13903 | } | |
13904 | ||
13905 | pat = GEN_FCN (icode) (target, op0); | |
13906 | if (! pat) | |
13907 | return 0; | |
13908 | emit_insn (pat); | |
13909 | return target; | |
13910 | } | |
13911 | ||
13912 | /* Subroutine of ix86_expand_builtin to take care of three special unop insns: | |
13913 | sqrtss, rsqrtss, rcpss. */ | |
13914 | ||
13915 | static rtx | |
b96a374d | 13916 | ix86_expand_unop1_builtin (enum insn_code icode, tree arglist, rtx target) |
bd793c65 BS |
13917 | { |
13918 | rtx pat; | |
13919 | tree arg0 = TREE_VALUE (arglist); | |
59bef189 | 13920 | rtx op1, op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); |
bd793c65 BS |
13921 | enum machine_mode tmode = insn_data[icode].operand[0].mode; |
13922 | enum machine_mode mode0 = insn_data[icode].operand[1].mode; | |
13923 | ||
13924 | if (! target | |
13925 | || GET_MODE (target) != tmode | |
13926 | || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) | |
13927 | target = gen_reg_rtx (tmode); | |
13928 | ||
13929 | if (VECTOR_MODE_P (mode0)) | |
13930 | op0 = safe_vector_operand (op0, mode0); | |
13931 | ||
13932 | if (! (*insn_data[icode].operand[1].predicate) (op0, mode0)) | |
13933 | op0 = copy_to_mode_reg (mode0, op0); | |
fce5a9f2 | 13934 | |
59bef189 RH |
13935 | op1 = op0; |
13936 | if (! (*insn_data[icode].operand[2].predicate) (op1, mode0)) | |
13937 | op1 = copy_to_mode_reg (mode0, op1); | |
fce5a9f2 | 13938 | |
59bef189 | 13939 | pat = GEN_FCN (icode) (target, op0, op1); |
bd793c65 BS |
13940 | if (! pat) |
13941 | return 0; | |
13942 | emit_insn (pat); | |
13943 | return target; | |
13944 | } | |
13945 | ||
13946 | /* Subroutine of ix86_expand_builtin to take care of comparison insns. */ | |
13947 | ||
13948 | static rtx | |
b96a374d AJ |
13949 | ix86_expand_sse_compare (const struct builtin_description *d, tree arglist, |
13950 | rtx target) | |
bd793c65 BS |
13951 | { |
13952 | rtx pat; | |
13953 | tree arg0 = TREE_VALUE (arglist); | |
13954 | tree arg1 = TREE_VALUE (TREE_CHAIN (arglist)); | |
13955 | rtx op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
13956 | rtx op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0); | |
13957 | rtx op2; | |
13958 | enum machine_mode tmode = insn_data[d->icode].operand[0].mode; | |
13959 | enum machine_mode mode0 = insn_data[d->icode].operand[1].mode; | |
13960 | enum machine_mode mode1 = insn_data[d->icode].operand[2].mode; | |
13961 | enum rtx_code comparison = d->comparison; | |
13962 | ||
13963 | if (VECTOR_MODE_P (mode0)) | |
13964 | op0 = safe_vector_operand (op0, mode0); | |
13965 | if (VECTOR_MODE_P (mode1)) | |
13966 | op1 = safe_vector_operand (op1, mode1); | |
13967 | ||
13968 | /* Swap operands if we have a comparison that isn't available in | |
13969 | hardware. */ | |
13970 | if (d->flag) | |
13971 | { | |
21e1b5f1 BS |
13972 | rtx tmp = gen_reg_rtx (mode1); |
13973 | emit_move_insn (tmp, op1); | |
bd793c65 | 13974 | op1 = op0; |
21e1b5f1 | 13975 | op0 = tmp; |
bd793c65 | 13976 | } |
21e1b5f1 BS |
13977 | |
13978 | if (! target | |
13979 | || GET_MODE (target) != tmode | |
13980 | || ! (*insn_data[d->icode].operand[0].predicate) (target, tmode)) | |
bd793c65 BS |
13981 | target = gen_reg_rtx (tmode); |
13982 | ||
13983 | if (! (*insn_data[d->icode].operand[1].predicate) (op0, mode0)) | |
13984 | op0 = copy_to_mode_reg (mode0, op0); | |
13985 | if (! (*insn_data[d->icode].operand[2].predicate) (op1, mode1)) | |
13986 | op1 = copy_to_mode_reg (mode1, op1); | |
13987 | ||
13988 | op2 = gen_rtx_fmt_ee (comparison, mode0, op0, op1); | |
13989 | pat = GEN_FCN (d->icode) (target, op0, op1, op2); | |
13990 | if (! pat) | |
13991 | return 0; | |
13992 | emit_insn (pat); | |
13993 | return target; | |
13994 | } | |
13995 | ||
13996 | /* Subroutine of ix86_expand_builtin to take care of comi insns. */ | |
13997 | ||
13998 | static rtx | |
b96a374d AJ |
13999 | ix86_expand_sse_comi (const struct builtin_description *d, tree arglist, |
14000 | rtx target) | |
bd793c65 BS |
14001 | { |
14002 | rtx pat; | |
14003 | tree arg0 = TREE_VALUE (arglist); | |
14004 | tree arg1 = TREE_VALUE (TREE_CHAIN (arglist)); | |
14005 | rtx op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
14006 | rtx op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0); | |
14007 | rtx op2; | |
14008 | enum machine_mode mode0 = insn_data[d->icode].operand[0].mode; | |
14009 | enum machine_mode mode1 = insn_data[d->icode].operand[1].mode; | |
14010 | enum rtx_code comparison = d->comparison; | |
14011 | ||
14012 | if (VECTOR_MODE_P (mode0)) | |
14013 | op0 = safe_vector_operand (op0, mode0); | |
14014 | if (VECTOR_MODE_P (mode1)) | |
14015 | op1 = safe_vector_operand (op1, mode1); | |
14016 | ||
14017 | /* Swap operands if we have a comparison that isn't available in | |
14018 | hardware. */ | |
14019 | if (d->flag) | |
14020 | { | |
14021 | rtx tmp = op1; | |
14022 | op1 = op0; | |
14023 | op0 = tmp; | |
bd793c65 BS |
14024 | } |
14025 | ||
14026 | target = gen_reg_rtx (SImode); | |
14027 | emit_move_insn (target, const0_rtx); | |
14028 | target = gen_rtx_SUBREG (QImode, target, 0); | |
14029 | ||
14030 | if (! (*insn_data[d->icode].operand[0].predicate) (op0, mode0)) | |
14031 | op0 = copy_to_mode_reg (mode0, op0); | |
14032 | if (! (*insn_data[d->icode].operand[1].predicate) (op1, mode1)) | |
14033 | op1 = copy_to_mode_reg (mode1, op1); | |
14034 | ||
14035 | op2 = gen_rtx_fmt_ee (comparison, mode0, op0, op1); | |
1194ca05 | 14036 | pat = GEN_FCN (d->icode) (op0, op1); |
bd793c65 BS |
14037 | if (! pat) |
14038 | return 0; | |
14039 | emit_insn (pat); | |
29628f27 BS |
14040 | emit_insn (gen_rtx_SET (VOIDmode, |
14041 | gen_rtx_STRICT_LOW_PART (VOIDmode, target), | |
14042 | gen_rtx_fmt_ee (comparison, QImode, | |
1194ca05 | 14043 | SET_DEST (pat), |
29628f27 | 14044 | const0_rtx))); |
bd793c65 | 14045 | |
6f1a6c5b | 14046 | return SUBREG_REG (target); |
bd793c65 BS |
14047 | } |
14048 | ||
14049 | /* Expand an expression EXP that calls a built-in function, | |
14050 | with result going to TARGET if that's convenient | |
14051 | (and in mode MODE if that's convenient). | |
14052 | SUBTARGET may be used as the target for computing one of EXP's operands. | |
14053 | IGNORE is nonzero if the value is to be ignored. */ | |
14054 | ||
14055 | rtx | |
b96a374d AJ |
14056 | ix86_expand_builtin (tree exp, rtx target, rtx subtarget ATTRIBUTE_UNUSED, |
14057 | enum machine_mode mode ATTRIBUTE_UNUSED, | |
14058 | int ignore ATTRIBUTE_UNUSED) | |
bd793c65 | 14059 | { |
8b60264b | 14060 | const struct builtin_description *d; |
77ebd435 | 14061 | size_t i; |
bd793c65 BS |
14062 | enum insn_code icode; |
14063 | tree fndecl = TREE_OPERAND (TREE_OPERAND (exp, 0), 0); | |
14064 | tree arglist = TREE_OPERAND (exp, 1); | |
e37af218 | 14065 | tree arg0, arg1, arg2; |
bd793c65 BS |
14066 | rtx op0, op1, op2, pat; |
14067 | enum machine_mode tmode, mode0, mode1, mode2; | |
8752c357 | 14068 | unsigned int fcode = DECL_FUNCTION_CODE (fndecl); |
bd793c65 BS |
14069 | |
14070 | switch (fcode) | |
14071 | { | |
14072 | case IX86_BUILTIN_EMMS: | |
14073 | emit_insn (gen_emms ()); | |
14074 | return 0; | |
14075 | ||
14076 | case IX86_BUILTIN_SFENCE: | |
14077 | emit_insn (gen_sfence ()); | |
14078 | return 0; | |
14079 | ||
bd793c65 | 14080 | case IX86_BUILTIN_PEXTRW: |
fbe5eb6d BS |
14081 | case IX86_BUILTIN_PEXTRW128: |
14082 | icode = (fcode == IX86_BUILTIN_PEXTRW | |
14083 | ? CODE_FOR_mmx_pextrw | |
14084 | : CODE_FOR_sse2_pextrw); | |
bd793c65 BS |
14085 | arg0 = TREE_VALUE (arglist); |
14086 | arg1 = TREE_VALUE (TREE_CHAIN (arglist)); | |
14087 | op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
14088 | op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0); | |
14089 | tmode = insn_data[icode].operand[0].mode; | |
14090 | mode0 = insn_data[icode].operand[1].mode; | |
14091 | mode1 = insn_data[icode].operand[2].mode; | |
14092 | ||
14093 | if (! (*insn_data[icode].operand[1].predicate) (op0, mode0)) | |
14094 | op0 = copy_to_mode_reg (mode0, op0); | |
14095 | if (! (*insn_data[icode].operand[2].predicate) (op1, mode1)) | |
14096 | { | |
ebe75517 JH |
14097 | error ("selector must be an integer constant in the range 0..%i", |
14098 | fcode == IX86_BUILTIN_PEXTRW ? 3:7); | |
6f1a6c5b | 14099 | return gen_reg_rtx (tmode); |
bd793c65 BS |
14100 | } |
14101 | if (target == 0 | |
14102 | || GET_MODE (target) != tmode | |
14103 | || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) | |
14104 | target = gen_reg_rtx (tmode); | |
14105 | pat = GEN_FCN (icode) (target, op0, op1); | |
14106 | if (! pat) | |
14107 | return 0; | |
14108 | emit_insn (pat); | |
14109 | return target; | |
14110 | ||
14111 | case IX86_BUILTIN_PINSRW: | |
fbe5eb6d BS |
14112 | case IX86_BUILTIN_PINSRW128: |
14113 | icode = (fcode == IX86_BUILTIN_PINSRW | |
14114 | ? CODE_FOR_mmx_pinsrw | |
14115 | : CODE_FOR_sse2_pinsrw); | |
bd793c65 BS |
14116 | arg0 = TREE_VALUE (arglist); |
14117 | arg1 = TREE_VALUE (TREE_CHAIN (arglist)); | |
14118 | arg2 = TREE_VALUE (TREE_CHAIN (TREE_CHAIN (arglist))); | |
14119 | op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
14120 | op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0); | |
14121 | op2 = expand_expr (arg2, NULL_RTX, VOIDmode, 0); | |
14122 | tmode = insn_data[icode].operand[0].mode; | |
14123 | mode0 = insn_data[icode].operand[1].mode; | |
14124 | mode1 = insn_data[icode].operand[2].mode; | |
14125 | mode2 = insn_data[icode].operand[3].mode; | |
14126 | ||
14127 | if (! (*insn_data[icode].operand[1].predicate) (op0, mode0)) | |
14128 | op0 = copy_to_mode_reg (mode0, op0); | |
14129 | if (! (*insn_data[icode].operand[2].predicate) (op1, mode1)) | |
14130 | op1 = copy_to_mode_reg (mode1, op1); | |
14131 | if (! (*insn_data[icode].operand[3].predicate) (op2, mode2)) | |
14132 | { | |
ebe75517 JH |
14133 | error ("selector must be an integer constant in the range 0..%i", |
14134 | fcode == IX86_BUILTIN_PINSRW ? 15:255); | |
bd793c65 BS |
14135 | return const0_rtx; |
14136 | } | |
14137 | if (target == 0 | |
14138 | || GET_MODE (target) != tmode | |
14139 | || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) | |
14140 | target = gen_reg_rtx (tmode); | |
14141 | pat = GEN_FCN (icode) (target, op0, op1, op2); | |
14142 | if (! pat) | |
14143 | return 0; | |
14144 | emit_insn (pat); | |
14145 | return target; | |
14146 | ||
14147 | case IX86_BUILTIN_MASKMOVQ: | |
077084dd | 14148 | case IX86_BUILTIN_MASKMOVDQU: |
fbe5eb6d BS |
14149 | icode = (fcode == IX86_BUILTIN_MASKMOVQ |
14150 | ? (TARGET_64BIT ? CODE_FOR_mmx_maskmovq_rex : CODE_FOR_mmx_maskmovq) | |
f8ca7923 JH |
14151 | : (TARGET_64BIT ? CODE_FOR_sse2_maskmovdqu_rex64 |
14152 | : CODE_FOR_sse2_maskmovdqu)); | |
bd793c65 BS |
14153 | /* Note the arg order is different from the operand order. */ |
14154 | arg1 = TREE_VALUE (arglist); | |
14155 | arg2 = TREE_VALUE (TREE_CHAIN (arglist)); | |
14156 | arg0 = TREE_VALUE (TREE_CHAIN (TREE_CHAIN (arglist))); | |
14157 | op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
14158 | op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0); | |
14159 | op2 = expand_expr (arg2, NULL_RTX, VOIDmode, 0); | |
14160 | mode0 = insn_data[icode].operand[0].mode; | |
14161 | mode1 = insn_data[icode].operand[1].mode; | |
14162 | mode2 = insn_data[icode].operand[2].mode; | |
14163 | ||
5c464583 | 14164 | if (! (*insn_data[icode].operand[0].predicate) (op0, mode0)) |
bd793c65 BS |
14165 | op0 = copy_to_mode_reg (mode0, op0); |
14166 | if (! (*insn_data[icode].operand[1].predicate) (op1, mode1)) | |
14167 | op1 = copy_to_mode_reg (mode1, op1); | |
14168 | if (! (*insn_data[icode].operand[2].predicate) (op2, mode2)) | |
14169 | op2 = copy_to_mode_reg (mode2, op2); | |
14170 | pat = GEN_FCN (icode) (op0, op1, op2); | |
14171 | if (! pat) | |
14172 | return 0; | |
14173 | emit_insn (pat); | |
14174 | return 0; | |
14175 | ||
14176 | case IX86_BUILTIN_SQRTSS: | |
14177 | return ix86_expand_unop1_builtin (CODE_FOR_vmsqrtv4sf2, arglist, target); | |
14178 | case IX86_BUILTIN_RSQRTSS: | |
14179 | return ix86_expand_unop1_builtin (CODE_FOR_vmrsqrtv4sf2, arglist, target); | |
14180 | case IX86_BUILTIN_RCPSS: | |
14181 | return ix86_expand_unop1_builtin (CODE_FOR_vmrcpv4sf2, arglist, target); | |
14182 | ||
14183 | case IX86_BUILTIN_LOADAPS: | |
14184 | return ix86_expand_unop_builtin (CODE_FOR_sse_movaps, arglist, target, 1); | |
14185 | ||
14186 | case IX86_BUILTIN_LOADUPS: | |
14187 | return ix86_expand_unop_builtin (CODE_FOR_sse_movups, arglist, target, 1); | |
14188 | ||
14189 | case IX86_BUILTIN_STOREAPS: | |
e37af218 | 14190 | return ix86_expand_store_builtin (CODE_FOR_sse_movaps, arglist); |
f02e1358 | 14191 | |
bd793c65 | 14192 | case IX86_BUILTIN_STOREUPS: |
e37af218 | 14193 | return ix86_expand_store_builtin (CODE_FOR_sse_movups, arglist); |
bd793c65 BS |
14194 | |
14195 | case IX86_BUILTIN_LOADSS: | |
14196 | return ix86_expand_unop_builtin (CODE_FOR_sse_loadss, arglist, target, 1); | |
14197 | ||
14198 | case IX86_BUILTIN_STORESS: | |
e37af218 | 14199 | return ix86_expand_store_builtin (CODE_FOR_sse_storess, arglist); |
bd793c65 | 14200 | |
0f290768 | 14201 | case IX86_BUILTIN_LOADHPS: |
bd793c65 | 14202 | case IX86_BUILTIN_LOADLPS: |
fbe5eb6d BS |
14203 | case IX86_BUILTIN_LOADHPD: |
14204 | case IX86_BUILTIN_LOADLPD: | |
14205 | icode = (fcode == IX86_BUILTIN_LOADHPS ? CODE_FOR_sse_movhps | |
14206 | : fcode == IX86_BUILTIN_LOADLPS ? CODE_FOR_sse_movlps | |
14207 | : fcode == IX86_BUILTIN_LOADHPD ? CODE_FOR_sse2_movhpd | |
997404de | 14208 | : CODE_FOR_sse2_movsd); |
bd793c65 BS |
14209 | arg0 = TREE_VALUE (arglist); |
14210 | arg1 = TREE_VALUE (TREE_CHAIN (arglist)); | |
14211 | op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
14212 | op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0); | |
14213 | tmode = insn_data[icode].operand[0].mode; | |
14214 | mode0 = insn_data[icode].operand[1].mode; | |
14215 | mode1 = insn_data[icode].operand[2].mode; | |
14216 | ||
14217 | if (! (*insn_data[icode].operand[1].predicate) (op0, mode0)) | |
14218 | op0 = copy_to_mode_reg (mode0, op0); | |
14219 | op1 = gen_rtx_MEM (mode1, copy_to_mode_reg (Pmode, op1)); | |
14220 | if (target == 0 | |
14221 | || GET_MODE (target) != tmode | |
14222 | || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) | |
14223 | target = gen_reg_rtx (tmode); | |
14224 | pat = GEN_FCN (icode) (target, op0, op1); | |
14225 | if (! pat) | |
14226 | return 0; | |
14227 | emit_insn (pat); | |
14228 | return target; | |
0f290768 | 14229 | |
bd793c65 BS |
14230 | case IX86_BUILTIN_STOREHPS: |
14231 | case IX86_BUILTIN_STORELPS: | |
fbe5eb6d BS |
14232 | case IX86_BUILTIN_STOREHPD: |
14233 | case IX86_BUILTIN_STORELPD: | |
14234 | icode = (fcode == IX86_BUILTIN_STOREHPS ? CODE_FOR_sse_movhps | |
14235 | : fcode == IX86_BUILTIN_STORELPS ? CODE_FOR_sse_movlps | |
14236 | : fcode == IX86_BUILTIN_STOREHPD ? CODE_FOR_sse2_movhpd | |
997404de | 14237 | : CODE_FOR_sse2_movsd); |
bd793c65 BS |
14238 | arg0 = TREE_VALUE (arglist); |
14239 | arg1 = TREE_VALUE (TREE_CHAIN (arglist)); | |
14240 | op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
14241 | op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0); | |
14242 | mode0 = insn_data[icode].operand[1].mode; | |
14243 | mode1 = insn_data[icode].operand[2].mode; | |
14244 | ||
14245 | op0 = gen_rtx_MEM (mode0, copy_to_mode_reg (Pmode, op0)); | |
14246 | if (! (*insn_data[icode].operand[2].predicate) (op1, mode1)) | |
14247 | op1 = copy_to_mode_reg (mode1, op1); | |
14248 | ||
14249 | pat = GEN_FCN (icode) (op0, op0, op1); | |
14250 | if (! pat) | |
14251 | return 0; | |
14252 | emit_insn (pat); | |
14253 | return 0; | |
14254 | ||
14255 | case IX86_BUILTIN_MOVNTPS: | |
e37af218 | 14256 | return ix86_expand_store_builtin (CODE_FOR_sse_movntv4sf, arglist); |
bd793c65 | 14257 | case IX86_BUILTIN_MOVNTQ: |
e37af218 | 14258 | return ix86_expand_store_builtin (CODE_FOR_sse_movntdi, arglist); |
bd793c65 BS |
14259 | |
14260 | case IX86_BUILTIN_LDMXCSR: | |
14261 | op0 = expand_expr (TREE_VALUE (arglist), NULL_RTX, VOIDmode, 0); | |
14262 | target = assign_386_stack_local (SImode, 0); | |
14263 | emit_move_insn (target, op0); | |
14264 | emit_insn (gen_ldmxcsr (target)); | |
14265 | return 0; | |
14266 | ||
14267 | case IX86_BUILTIN_STMXCSR: | |
14268 | target = assign_386_stack_local (SImode, 0); | |
14269 | emit_insn (gen_stmxcsr (target)); | |
14270 | return copy_to_mode_reg (SImode, target); | |
14271 | ||
bd793c65 | 14272 | case IX86_BUILTIN_SHUFPS: |
fbe5eb6d BS |
14273 | case IX86_BUILTIN_SHUFPD: |
14274 | icode = (fcode == IX86_BUILTIN_SHUFPS | |
14275 | ? CODE_FOR_sse_shufps | |
14276 | : CODE_FOR_sse2_shufpd); | |
bd793c65 BS |
14277 | arg0 = TREE_VALUE (arglist); |
14278 | arg1 = TREE_VALUE (TREE_CHAIN (arglist)); | |
14279 | arg2 = TREE_VALUE (TREE_CHAIN (TREE_CHAIN (arglist))); | |
14280 | op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
14281 | op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0); | |
14282 | op2 = expand_expr (arg2, NULL_RTX, VOIDmode, 0); | |
14283 | tmode = insn_data[icode].operand[0].mode; | |
14284 | mode0 = insn_data[icode].operand[1].mode; | |
14285 | mode1 = insn_data[icode].operand[2].mode; | |
14286 | mode2 = insn_data[icode].operand[3].mode; | |
14287 | ||
14288 | if (! (*insn_data[icode].operand[1].predicate) (op0, mode0)) | |
14289 | op0 = copy_to_mode_reg (mode0, op0); | |
14290 | if (! (*insn_data[icode].operand[2].predicate) (op1, mode1)) | |
14291 | op1 = copy_to_mode_reg (mode1, op1); | |
14292 | if (! (*insn_data[icode].operand[3].predicate) (op2, mode2)) | |
14293 | { | |
14294 | /* @@@ better error message */ | |
14295 | error ("mask must be an immediate"); | |
6f1a6c5b | 14296 | return gen_reg_rtx (tmode); |
bd793c65 BS |
14297 | } |
14298 | if (target == 0 | |
14299 | || GET_MODE (target) != tmode | |
14300 | || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) | |
14301 | target = gen_reg_rtx (tmode); | |
14302 | pat = GEN_FCN (icode) (target, op0, op1, op2); | |
14303 | if (! pat) | |
14304 | return 0; | |
14305 | emit_insn (pat); | |
14306 | return target; | |
14307 | ||
14308 | case IX86_BUILTIN_PSHUFW: | |
fbe5eb6d BS |
14309 | case IX86_BUILTIN_PSHUFD: |
14310 | case IX86_BUILTIN_PSHUFHW: | |
14311 | case IX86_BUILTIN_PSHUFLW: | |
14312 | icode = ( fcode == IX86_BUILTIN_PSHUFHW ? CODE_FOR_sse2_pshufhw | |
14313 | : fcode == IX86_BUILTIN_PSHUFLW ? CODE_FOR_sse2_pshuflw | |
14314 | : fcode == IX86_BUILTIN_PSHUFD ? CODE_FOR_sse2_pshufd | |
14315 | : CODE_FOR_mmx_pshufw); | |
bd793c65 BS |
14316 | arg0 = TREE_VALUE (arglist); |
14317 | arg1 = TREE_VALUE (TREE_CHAIN (arglist)); | |
14318 | op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
14319 | op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0); | |
14320 | tmode = insn_data[icode].operand[0].mode; | |
29628f27 BS |
14321 | mode1 = insn_data[icode].operand[1].mode; |
14322 | mode2 = insn_data[icode].operand[2].mode; | |
bd793c65 | 14323 | |
29628f27 BS |
14324 | if (! (*insn_data[icode].operand[1].predicate) (op0, mode1)) |
14325 | op0 = copy_to_mode_reg (mode1, op0); | |
14326 | if (! (*insn_data[icode].operand[2].predicate) (op1, mode2)) | |
bd793c65 BS |
14327 | { |
14328 | /* @@@ better error message */ | |
14329 | error ("mask must be an immediate"); | |
14330 | return const0_rtx; | |
14331 | } | |
14332 | if (target == 0 | |
14333 | || GET_MODE (target) != tmode | |
14334 | || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) | |
14335 | target = gen_reg_rtx (tmode); | |
29628f27 | 14336 | pat = GEN_FCN (icode) (target, op0, op1); |
bd793c65 BS |
14337 | if (! pat) |
14338 | return 0; | |
14339 | emit_insn (pat); | |
14340 | return target; | |
14341 | ||
ab3146fd ZD |
14342 | case IX86_BUILTIN_PSLLDQI128: |
14343 | case IX86_BUILTIN_PSRLDQI128: | |
14344 | icode = ( fcode == IX86_BUILTIN_PSLLDQI128 ? CODE_FOR_sse2_ashlti3 | |
14345 | : CODE_FOR_sse2_lshrti3); | |
14346 | arg0 = TREE_VALUE (arglist); | |
14347 | arg1 = TREE_VALUE (TREE_CHAIN (arglist)); | |
14348 | op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
14349 | op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0); | |
14350 | tmode = insn_data[icode].operand[0].mode; | |
14351 | mode1 = insn_data[icode].operand[1].mode; | |
14352 | mode2 = insn_data[icode].operand[2].mode; | |
14353 | ||
14354 | if (! (*insn_data[icode].operand[1].predicate) (op0, mode1)) | |
14355 | { | |
14356 | op0 = copy_to_reg (op0); | |
14357 | op0 = simplify_gen_subreg (mode1, op0, GET_MODE (op0), 0); | |
14358 | } | |
14359 | if (! (*insn_data[icode].operand[2].predicate) (op1, mode2)) | |
14360 | { | |
14361 | error ("shift must be an immediate"); | |
14362 | return const0_rtx; | |
14363 | } | |
14364 | target = gen_reg_rtx (V2DImode); | |
14365 | pat = GEN_FCN (icode) (simplify_gen_subreg (tmode, target, V2DImode, 0), op0, op1); | |
14366 | if (! pat) | |
14367 | return 0; | |
14368 | emit_insn (pat); | |
14369 | return target; | |
14370 | ||
47f339cf BS |
14371 | case IX86_BUILTIN_FEMMS: |
14372 | emit_insn (gen_femms ()); | |
14373 | return NULL_RTX; | |
14374 | ||
14375 | case IX86_BUILTIN_PAVGUSB: | |
14376 | return ix86_expand_binop_builtin (CODE_FOR_pavgusb, arglist, target); | |
14377 | ||
14378 | case IX86_BUILTIN_PF2ID: | |
14379 | return ix86_expand_unop_builtin (CODE_FOR_pf2id, arglist, target, 0); | |
14380 | ||
14381 | case IX86_BUILTIN_PFACC: | |
14382 | return ix86_expand_binop_builtin (CODE_FOR_pfacc, arglist, target); | |
14383 | ||
14384 | case IX86_BUILTIN_PFADD: | |
14385 | return ix86_expand_binop_builtin (CODE_FOR_addv2sf3, arglist, target); | |
14386 | ||
14387 | case IX86_BUILTIN_PFCMPEQ: | |
14388 | return ix86_expand_binop_builtin (CODE_FOR_eqv2sf3, arglist, target); | |
14389 | ||
14390 | case IX86_BUILTIN_PFCMPGE: | |
14391 | return ix86_expand_binop_builtin (CODE_FOR_gev2sf3, arglist, target); | |
14392 | ||
14393 | case IX86_BUILTIN_PFCMPGT: | |
14394 | return ix86_expand_binop_builtin (CODE_FOR_gtv2sf3, arglist, target); | |
14395 | ||
14396 | case IX86_BUILTIN_PFMAX: | |
14397 | return ix86_expand_binop_builtin (CODE_FOR_pfmaxv2sf3, arglist, target); | |
14398 | ||
14399 | case IX86_BUILTIN_PFMIN: | |
14400 | return ix86_expand_binop_builtin (CODE_FOR_pfminv2sf3, arglist, target); | |
14401 | ||
14402 | case IX86_BUILTIN_PFMUL: | |
14403 | return ix86_expand_binop_builtin (CODE_FOR_mulv2sf3, arglist, target); | |
14404 | ||
14405 | case IX86_BUILTIN_PFRCP: | |
14406 | return ix86_expand_unop_builtin (CODE_FOR_pfrcpv2sf2, arglist, target, 0); | |
14407 | ||
14408 | case IX86_BUILTIN_PFRCPIT1: | |
14409 | return ix86_expand_binop_builtin (CODE_FOR_pfrcpit1v2sf3, arglist, target); | |
14410 | ||
14411 | case IX86_BUILTIN_PFRCPIT2: | |
14412 | return ix86_expand_binop_builtin (CODE_FOR_pfrcpit2v2sf3, arglist, target); | |
14413 | ||
14414 | case IX86_BUILTIN_PFRSQIT1: | |
14415 | return ix86_expand_binop_builtin (CODE_FOR_pfrsqit1v2sf3, arglist, target); | |
14416 | ||
14417 | case IX86_BUILTIN_PFRSQRT: | |
14418 | return ix86_expand_unop_builtin (CODE_FOR_pfrsqrtv2sf2, arglist, target, 0); | |
14419 | ||
14420 | case IX86_BUILTIN_PFSUB: | |
14421 | return ix86_expand_binop_builtin (CODE_FOR_subv2sf3, arglist, target); | |
14422 | ||
14423 | case IX86_BUILTIN_PFSUBR: | |
14424 | return ix86_expand_binop_builtin (CODE_FOR_subrv2sf3, arglist, target); | |
14425 | ||
14426 | case IX86_BUILTIN_PI2FD: | |
14427 | return ix86_expand_unop_builtin (CODE_FOR_floatv2si2, arglist, target, 0); | |
14428 | ||
14429 | case IX86_BUILTIN_PMULHRW: | |
14430 | return ix86_expand_binop_builtin (CODE_FOR_pmulhrwv4hi3, arglist, target); | |
14431 | ||
47f339cf BS |
14432 | case IX86_BUILTIN_PF2IW: |
14433 | return ix86_expand_unop_builtin (CODE_FOR_pf2iw, arglist, target, 0); | |
14434 | ||
14435 | case IX86_BUILTIN_PFNACC: | |
14436 | return ix86_expand_binop_builtin (CODE_FOR_pfnacc, arglist, target); | |
14437 | ||
14438 | case IX86_BUILTIN_PFPNACC: | |
14439 | return ix86_expand_binop_builtin (CODE_FOR_pfpnacc, arglist, target); | |
14440 | ||
14441 | case IX86_BUILTIN_PI2FW: | |
14442 | return ix86_expand_unop_builtin (CODE_FOR_pi2fw, arglist, target, 0); | |
14443 | ||
14444 | case IX86_BUILTIN_PSWAPDSI: | |
14445 | return ix86_expand_unop_builtin (CODE_FOR_pswapdv2si2, arglist, target, 0); | |
14446 | ||
14447 | case IX86_BUILTIN_PSWAPDSF: | |
14448 | return ix86_expand_unop_builtin (CODE_FOR_pswapdv2sf2, arglist, target, 0); | |
14449 | ||
e37af218 RH |
14450 | case IX86_BUILTIN_SSE_ZERO: |
14451 | target = gen_reg_rtx (V4SFmode); | |
4977bab6 | 14452 | emit_insn (gen_sse_clrv4sf (target, CONST0_RTX (V4SFmode))); |
bd793c65 BS |
14453 | return target; |
14454 | ||
bd793c65 BS |
14455 | case IX86_BUILTIN_MMX_ZERO: |
14456 | target = gen_reg_rtx (DImode); | |
14457 | emit_insn (gen_mmx_clrdi (target)); | |
14458 | return target; | |
14459 | ||
f02e1358 JH |
14460 | case IX86_BUILTIN_CLRTI: |
14461 | target = gen_reg_rtx (V2DImode); | |
14462 | emit_insn (gen_sse2_clrti (simplify_gen_subreg (TImode, target, V2DImode, 0))); | |
14463 | return target; | |
14464 | ||
14465 | ||
fbe5eb6d BS |
14466 | case IX86_BUILTIN_SQRTSD: |
14467 | return ix86_expand_unop1_builtin (CODE_FOR_vmsqrtv2df2, arglist, target); | |
14468 | case IX86_BUILTIN_LOADAPD: | |
14469 | return ix86_expand_unop_builtin (CODE_FOR_sse2_movapd, arglist, target, 1); | |
14470 | case IX86_BUILTIN_LOADUPD: | |
14471 | return ix86_expand_unop_builtin (CODE_FOR_sse2_movupd, arglist, target, 1); | |
14472 | ||
14473 | case IX86_BUILTIN_STOREAPD: | |
14474 | return ix86_expand_store_builtin (CODE_FOR_sse2_movapd, arglist); | |
14475 | case IX86_BUILTIN_STOREUPD: | |
14476 | return ix86_expand_store_builtin (CODE_FOR_sse2_movupd, arglist); | |
14477 | ||
14478 | case IX86_BUILTIN_LOADSD: | |
14479 | return ix86_expand_unop_builtin (CODE_FOR_sse2_loadsd, arglist, target, 1); | |
14480 | ||
14481 | case IX86_BUILTIN_STORESD: | |
14482 | return ix86_expand_store_builtin (CODE_FOR_sse2_storesd, arglist); | |
14483 | ||
14484 | case IX86_BUILTIN_SETPD1: | |
14485 | target = assign_386_stack_local (DFmode, 0); | |
14486 | arg0 = TREE_VALUE (arglist); | |
14487 | emit_move_insn (adjust_address (target, DFmode, 0), | |
14488 | expand_expr (arg0, NULL_RTX, VOIDmode, 0)); | |
14489 | op0 = gen_reg_rtx (V2DFmode); | |
14490 | emit_insn (gen_sse2_loadsd (op0, adjust_address (target, V2DFmode, 0))); | |
60c81c89 | 14491 | emit_insn (gen_sse2_shufpd (op0, op0, op0, const0_rtx)); |
fbe5eb6d BS |
14492 | return op0; |
14493 | ||
14494 | case IX86_BUILTIN_SETPD: | |
14495 | target = assign_386_stack_local (V2DFmode, 0); | |
14496 | arg0 = TREE_VALUE (arglist); | |
14497 | arg1 = TREE_VALUE (TREE_CHAIN (arglist)); | |
14498 | emit_move_insn (adjust_address (target, DFmode, 0), | |
14499 | expand_expr (arg0, NULL_RTX, VOIDmode, 0)); | |
14500 | emit_move_insn (adjust_address (target, DFmode, 8), | |
14501 | expand_expr (arg1, NULL_RTX, VOIDmode, 0)); | |
14502 | op0 = gen_reg_rtx (V2DFmode); | |
14503 | emit_insn (gen_sse2_movapd (op0, target)); | |
14504 | return op0; | |
14505 | ||
14506 | case IX86_BUILTIN_LOADRPD: | |
14507 | target = ix86_expand_unop_builtin (CODE_FOR_sse2_movapd, arglist, | |
14508 | gen_reg_rtx (V2DFmode), 1); | |
60c81c89 | 14509 | emit_insn (gen_sse2_shufpd (target, target, target, const1_rtx)); |
fbe5eb6d BS |
14510 | return target; |
14511 | ||
14512 | case IX86_BUILTIN_LOADPD1: | |
14513 | target = ix86_expand_unop_builtin (CODE_FOR_sse2_loadsd, arglist, | |
14514 | gen_reg_rtx (V2DFmode), 1); | |
14515 | emit_insn (gen_sse2_shufpd (target, target, target, const0_rtx)); | |
14516 | return target; | |
14517 | ||
14518 | case IX86_BUILTIN_STOREPD1: | |
14519 | return ix86_expand_store_builtin (CODE_FOR_sse2_movapd, arglist); | |
14520 | case IX86_BUILTIN_STORERPD: | |
14521 | return ix86_expand_store_builtin (CODE_FOR_sse2_movapd, arglist); | |
14522 | ||
48126a97 JH |
14523 | case IX86_BUILTIN_CLRPD: |
14524 | target = gen_reg_rtx (V2DFmode); | |
14525 | emit_insn (gen_sse_clrv2df (target)); | |
14526 | return target; | |
14527 | ||
fbe5eb6d BS |
14528 | case IX86_BUILTIN_MFENCE: |
14529 | emit_insn (gen_sse2_mfence ()); | |
14530 | return 0; | |
14531 | case IX86_BUILTIN_LFENCE: | |
14532 | emit_insn (gen_sse2_lfence ()); | |
14533 | return 0; | |
14534 | ||
14535 | case IX86_BUILTIN_CLFLUSH: | |
14536 | arg0 = TREE_VALUE (arglist); | |
14537 | op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
14538 | icode = CODE_FOR_sse2_clflush; | |
1194ca05 JH |
14539 | if (! (*insn_data[icode].operand[0].predicate) (op0, Pmode)) |
14540 | op0 = copy_to_mode_reg (Pmode, op0); | |
fbe5eb6d BS |
14541 | |
14542 | emit_insn (gen_sse2_clflush (op0)); | |
14543 | return 0; | |
14544 | ||
14545 | case IX86_BUILTIN_MOVNTPD: | |
14546 | return ix86_expand_store_builtin (CODE_FOR_sse2_movntv2df, arglist); | |
14547 | case IX86_BUILTIN_MOVNTDQ: | |
916b60b7 | 14548 | return ix86_expand_store_builtin (CODE_FOR_sse2_movntv2di, arglist); |
fbe5eb6d BS |
14549 | case IX86_BUILTIN_MOVNTI: |
14550 | return ix86_expand_store_builtin (CODE_FOR_sse2_movntsi, arglist); | |
14551 | ||
f02e1358 JH |
14552 | case IX86_BUILTIN_LOADDQA: |
14553 | return ix86_expand_unop_builtin (CODE_FOR_sse2_movdqa, arglist, target, 1); | |
14554 | case IX86_BUILTIN_LOADDQU: | |
14555 | return ix86_expand_unop_builtin (CODE_FOR_sse2_movdqu, arglist, target, 1); | |
14556 | case IX86_BUILTIN_LOADD: | |
14557 | return ix86_expand_unop_builtin (CODE_FOR_sse2_loadd, arglist, target, 1); | |
14558 | ||
14559 | case IX86_BUILTIN_STOREDQA: | |
14560 | return ix86_expand_store_builtin (CODE_FOR_sse2_movdqa, arglist); | |
14561 | case IX86_BUILTIN_STOREDQU: | |
14562 | return ix86_expand_store_builtin (CODE_FOR_sse2_movdqu, arglist); | |
14563 | case IX86_BUILTIN_STORED: | |
14564 | return ix86_expand_store_builtin (CODE_FOR_sse2_stored, arglist); | |
14565 | ||
22c7c85e L |
14566 | case IX86_BUILTIN_MONITOR: |
14567 | arg0 = TREE_VALUE (arglist); | |
14568 | arg1 = TREE_VALUE (TREE_CHAIN (arglist)); | |
14569 | arg2 = TREE_VALUE (TREE_CHAIN (TREE_CHAIN (arglist))); | |
14570 | op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
14571 | op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0); | |
14572 | op2 = expand_expr (arg2, NULL_RTX, VOIDmode, 0); | |
14573 | if (!REG_P (op0)) | |
14574 | op0 = copy_to_mode_reg (SImode, op0); | |
14575 | if (!REG_P (op1)) | |
14576 | op1 = copy_to_mode_reg (SImode, op1); | |
14577 | if (!REG_P (op2)) | |
14578 | op2 = copy_to_mode_reg (SImode, op2); | |
14579 | emit_insn (gen_monitor (op0, op1, op2)); | |
14580 | return 0; | |
14581 | ||
14582 | case IX86_BUILTIN_MWAIT: | |
14583 | arg0 = TREE_VALUE (arglist); | |
14584 | arg1 = TREE_VALUE (TREE_CHAIN (arglist)); | |
14585 | op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
14586 | op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0); | |
14587 | if (!REG_P (op0)) | |
14588 | op0 = copy_to_mode_reg (SImode, op0); | |
14589 | if (!REG_P (op1)) | |
14590 | op1 = copy_to_mode_reg (SImode, op1); | |
14591 | emit_insn (gen_mwait (op0, op1)); | |
14592 | return 0; | |
14593 | ||
14594 | case IX86_BUILTIN_LOADDDUP: | |
14595 | return ix86_expand_unop_builtin (CODE_FOR_loadddup, arglist, target, 1); | |
14596 | ||
14597 | case IX86_BUILTIN_LDDQU: | |
14598 | return ix86_expand_unop_builtin (CODE_FOR_lddqu, arglist, target, | |
14599 | 1); | |
14600 | ||
bd793c65 BS |
14601 | default: |
14602 | break; | |
14603 | } | |
14604 | ||
ca7558fc | 14605 | for (i = 0, d = bdesc_2arg; i < ARRAY_SIZE (bdesc_2arg); i++, d++) |
bd793c65 BS |
14606 | if (d->code == fcode) |
14607 | { | |
14608 | /* Compares are treated specially. */ | |
14609 | if (d->icode == CODE_FOR_maskcmpv4sf3 | |
14610 | || d->icode == CODE_FOR_vmmaskcmpv4sf3 | |
14611 | || d->icode == CODE_FOR_maskncmpv4sf3 | |
fbe5eb6d BS |
14612 | || d->icode == CODE_FOR_vmmaskncmpv4sf3 |
14613 | || d->icode == CODE_FOR_maskcmpv2df3 | |
14614 | || d->icode == CODE_FOR_vmmaskcmpv2df3 | |
14615 | || d->icode == CODE_FOR_maskncmpv2df3 | |
14616 | || d->icode == CODE_FOR_vmmaskncmpv2df3) | |
bd793c65 BS |
14617 | return ix86_expand_sse_compare (d, arglist, target); |
14618 | ||
14619 | return ix86_expand_binop_builtin (d->icode, arglist, target); | |
14620 | } | |
14621 | ||
ca7558fc | 14622 | for (i = 0, d = bdesc_1arg; i < ARRAY_SIZE (bdesc_1arg); i++, d++) |
bd793c65 BS |
14623 | if (d->code == fcode) |
14624 | return ix86_expand_unop_builtin (d->icode, arglist, target, 0); | |
0f290768 | 14625 | |
ca7558fc | 14626 | for (i = 0, d = bdesc_comi; i < ARRAY_SIZE (bdesc_comi); i++, d++) |
bd793c65 BS |
14627 | if (d->code == fcode) |
14628 | return ix86_expand_sse_comi (d, arglist, target); | |
0f290768 | 14629 | |
bd793c65 BS |
14630 | /* @@@ Should really do something sensible here. */ |
14631 | return 0; | |
bd793c65 | 14632 | } |
4211a8fb JH |
14633 | |
14634 | /* Store OPERAND to the memory after reload is completed. This means | |
f710504c | 14635 | that we can't easily use assign_stack_local. */ |
4211a8fb | 14636 | rtx |
b96a374d | 14637 | ix86_force_to_memory (enum machine_mode mode, rtx operand) |
4211a8fb | 14638 | { |
898d374d | 14639 | rtx result; |
4211a8fb JH |
14640 | if (!reload_completed) |
14641 | abort (); | |
a5b378d6 | 14642 | if (TARGET_RED_ZONE) |
898d374d JH |
14643 | { |
14644 | result = gen_rtx_MEM (mode, | |
14645 | gen_rtx_PLUS (Pmode, | |
14646 | stack_pointer_rtx, | |
14647 | GEN_INT (-RED_ZONE_SIZE))); | |
14648 | emit_move_insn (result, operand); | |
14649 | } | |
a5b378d6 | 14650 | else if (!TARGET_RED_ZONE && TARGET_64BIT) |
4211a8fb | 14651 | { |
898d374d | 14652 | switch (mode) |
4211a8fb | 14653 | { |
898d374d JH |
14654 | case HImode: |
14655 | case SImode: | |
14656 | operand = gen_lowpart (DImode, operand); | |
5efb1046 | 14657 | /* FALLTHRU */ |
898d374d | 14658 | case DImode: |
4211a8fb | 14659 | emit_insn ( |
898d374d JH |
14660 | gen_rtx_SET (VOIDmode, |
14661 | gen_rtx_MEM (DImode, | |
14662 | gen_rtx_PRE_DEC (DImode, | |
14663 | stack_pointer_rtx)), | |
14664 | operand)); | |
14665 | break; | |
14666 | default: | |
14667 | abort (); | |
14668 | } | |
14669 | result = gen_rtx_MEM (mode, stack_pointer_rtx); | |
14670 | } | |
14671 | else | |
14672 | { | |
14673 | switch (mode) | |
14674 | { | |
14675 | case DImode: | |
14676 | { | |
14677 | rtx operands[2]; | |
14678 | split_di (&operand, 1, operands, operands + 1); | |
14679 | emit_insn ( | |
14680 | gen_rtx_SET (VOIDmode, | |
14681 | gen_rtx_MEM (SImode, | |
14682 | gen_rtx_PRE_DEC (Pmode, | |
14683 | stack_pointer_rtx)), | |
14684 | operands[1])); | |
14685 | emit_insn ( | |
14686 | gen_rtx_SET (VOIDmode, | |
14687 | gen_rtx_MEM (SImode, | |
14688 | gen_rtx_PRE_DEC (Pmode, | |
14689 | stack_pointer_rtx)), | |
14690 | operands[0])); | |
14691 | } | |
14692 | break; | |
14693 | case HImode: | |
14694 | /* It is better to store HImodes as SImodes. */ | |
14695 | if (!TARGET_PARTIAL_REG_STALL) | |
14696 | operand = gen_lowpart (SImode, operand); | |
5efb1046 | 14697 | /* FALLTHRU */ |
898d374d | 14698 | case SImode: |
4211a8fb | 14699 | emit_insn ( |
898d374d JH |
14700 | gen_rtx_SET (VOIDmode, |
14701 | gen_rtx_MEM (GET_MODE (operand), | |
14702 | gen_rtx_PRE_DEC (SImode, | |
14703 | stack_pointer_rtx)), | |
14704 | operand)); | |
14705 | break; | |
14706 | default: | |
14707 | abort (); | |
4211a8fb | 14708 | } |
898d374d | 14709 | result = gen_rtx_MEM (mode, stack_pointer_rtx); |
4211a8fb | 14710 | } |
898d374d | 14711 | return result; |
4211a8fb JH |
14712 | } |
14713 | ||
14714 | /* Free operand from the memory. */ | |
14715 | void | |
b96a374d | 14716 | ix86_free_from_memory (enum machine_mode mode) |
4211a8fb | 14717 | { |
a5b378d6 | 14718 | if (!TARGET_RED_ZONE) |
898d374d JH |
14719 | { |
14720 | int size; | |
14721 | ||
14722 | if (mode == DImode || TARGET_64BIT) | |
14723 | size = 8; | |
14724 | else if (mode == HImode && TARGET_PARTIAL_REG_STALL) | |
14725 | size = 2; | |
14726 | else | |
14727 | size = 4; | |
14728 | /* Use LEA to deallocate stack space. In peephole2 it will be converted | |
14729 | to pop or add instruction if registers are available. */ | |
14730 | emit_insn (gen_rtx_SET (VOIDmode, stack_pointer_rtx, | |
14731 | gen_rtx_PLUS (Pmode, stack_pointer_rtx, | |
14732 | GEN_INT (size)))); | |
14733 | } | |
4211a8fb | 14734 | } |
a946dd00 | 14735 | |
f84aa48a JH |
14736 | /* Put float CONST_DOUBLE in the constant pool instead of fp regs. |
14737 | QImode must go into class Q_REGS. | |
14738 | Narrow ALL_REGS to GENERAL_REGS. This supports allowing movsf and | |
892a2d68 | 14739 | movdf to do mem-to-mem moves through integer regs. */ |
f84aa48a | 14740 | enum reg_class |
b96a374d | 14741 | ix86_preferred_reload_class (rtx x, enum reg_class class) |
f84aa48a | 14742 | { |
1877be45 JH |
14743 | if (GET_CODE (x) == CONST_VECTOR && x != CONST0_RTX (GET_MODE (x))) |
14744 | return NO_REGS; | |
f84aa48a JH |
14745 | if (GET_CODE (x) == CONST_DOUBLE && GET_MODE (x) != VOIDmode) |
14746 | { | |
14747 | /* SSE can't load any constant directly yet. */ | |
14748 | if (SSE_CLASS_P (class)) | |
14749 | return NO_REGS; | |
14750 | /* Floats can load 0 and 1. */ | |
14751 | if (MAYBE_FLOAT_CLASS_P (class) && standard_80387_constant_p (x)) | |
14752 | { | |
14753 | /* Limit class to non-SSE. Use GENERAL_REGS if possible. */ | |
14754 | if (MAYBE_SSE_CLASS_P (class)) | |
14755 | return (reg_class_subset_p (class, GENERAL_REGS) | |
14756 | ? GENERAL_REGS : FLOAT_REGS); | |
14757 | else | |
14758 | return class; | |
14759 | } | |
14760 | /* General regs can load everything. */ | |
14761 | if (reg_class_subset_p (class, GENERAL_REGS)) | |
14762 | return GENERAL_REGS; | |
14763 | /* In case we haven't resolved FLOAT or SSE yet, give up. */ | |
14764 | if (MAYBE_FLOAT_CLASS_P (class) || MAYBE_SSE_CLASS_P (class)) | |
14765 | return NO_REGS; | |
14766 | } | |
14767 | if (MAYBE_MMX_CLASS_P (class) && CONSTANT_P (x)) | |
14768 | return NO_REGS; | |
14769 | if (GET_MODE (x) == QImode && ! reg_class_subset_p (class, Q_REGS)) | |
14770 | return Q_REGS; | |
14771 | return class; | |
14772 | } | |
14773 | ||
14774 | /* If we are copying between general and FP registers, we need a memory | |
14775 | location. The same is true for SSE and MMX registers. | |
14776 | ||
14777 | The macro can't work reliably when one of the CLASSES is class containing | |
14778 | registers from multiple units (SSE, MMX, integer). We avoid this by never | |
14779 | combining those units in single alternative in the machine description. | |
14780 | Ensure that this constraint holds to avoid unexpected surprises. | |
14781 | ||
14782 | When STRICT is false, we are being called from REGISTER_MOVE_COST, so do not | |
14783 | enforce these sanity checks. */ | |
14784 | int | |
b96a374d AJ |
14785 | ix86_secondary_memory_needed (enum reg_class class1, enum reg_class class2, |
14786 | enum machine_mode mode, int strict) | |
f84aa48a JH |
14787 | { |
14788 | if (MAYBE_FLOAT_CLASS_P (class1) != FLOAT_CLASS_P (class1) | |
14789 | || MAYBE_FLOAT_CLASS_P (class2) != FLOAT_CLASS_P (class2) | |
14790 | || MAYBE_SSE_CLASS_P (class1) != SSE_CLASS_P (class1) | |
14791 | || MAYBE_SSE_CLASS_P (class2) != SSE_CLASS_P (class2) | |
14792 | || MAYBE_MMX_CLASS_P (class1) != MMX_CLASS_P (class1) | |
14793 | || MAYBE_MMX_CLASS_P (class2) != MMX_CLASS_P (class2)) | |
14794 | { | |
14795 | if (strict) | |
14796 | abort (); | |
14797 | else | |
14798 | return 1; | |
14799 | } | |
14800 | return (FLOAT_CLASS_P (class1) != FLOAT_CLASS_P (class2) | |
8f62128d JH |
14801 | || ((SSE_CLASS_P (class1) != SSE_CLASS_P (class2) |
14802 | || MMX_CLASS_P (class1) != MMX_CLASS_P (class2)) | |
14803 | && ((mode != SImode && (mode != DImode || !TARGET_64BIT)) | |
14804 | || (!TARGET_INTER_UNIT_MOVES && !optimize_size)))); | |
f84aa48a JH |
14805 | } |
14806 | /* Return the cost of moving data from a register in class CLASS1 to | |
a4f31c00 | 14807 | one in class CLASS2. |
f84aa48a JH |
14808 | |
14809 | It is not required that the cost always equal 2 when FROM is the same as TO; | |
14810 | on some machines it is expensive to move between registers if they are not | |
14811 | general registers. */ | |
14812 | int | |
b96a374d AJ |
14813 | ix86_register_move_cost (enum machine_mode mode, enum reg_class class1, |
14814 | enum reg_class class2) | |
f84aa48a JH |
14815 | { |
14816 | /* In case we require secondary memory, compute cost of the store followed | |
b96a374d | 14817 | by load. In order to avoid bad register allocation choices, we need |
d631b80a RH |
14818 | for this to be *at least* as high as the symmetric MEMORY_MOVE_COST. */ |
14819 | ||
f84aa48a JH |
14820 | if (ix86_secondary_memory_needed (class1, class2, mode, 0)) |
14821 | { | |
d631b80a RH |
14822 | int cost = 1; |
14823 | ||
14824 | cost += MAX (MEMORY_MOVE_COST (mode, class1, 0), | |
14825 | MEMORY_MOVE_COST (mode, class1, 1)); | |
14826 | cost += MAX (MEMORY_MOVE_COST (mode, class2, 0), | |
14827 | MEMORY_MOVE_COST (mode, class2, 1)); | |
b96a374d | 14828 | |
d631b80a RH |
14829 | /* In case of copying from general_purpose_register we may emit multiple |
14830 | stores followed by single load causing memory size mismatch stall. | |
d1f87653 | 14831 | Count this as arbitrarily high cost of 20. */ |
62415523 | 14832 | if (CLASS_MAX_NREGS (class1, mode) > CLASS_MAX_NREGS (class2, mode)) |
d631b80a RH |
14833 | cost += 20; |
14834 | ||
14835 | /* In the case of FP/MMX moves, the registers actually overlap, and we | |
14836 | have to switch modes in order to treat them differently. */ | |
14837 | if ((MMX_CLASS_P (class1) && MAYBE_FLOAT_CLASS_P (class2)) | |
14838 | || (MMX_CLASS_P (class2) && MAYBE_FLOAT_CLASS_P (class1))) | |
14839 | cost += 20; | |
14840 | ||
14841 | return cost; | |
f84aa48a | 14842 | } |
d631b80a | 14843 | |
92d0fb09 | 14844 | /* Moves between SSE/MMX and integer unit are expensive. */ |
62415523 JH |
14845 | if (MMX_CLASS_P (class1) != MMX_CLASS_P (class2) |
14846 | || SSE_CLASS_P (class1) != SSE_CLASS_P (class2)) | |
fa79946e JH |
14847 | return ix86_cost->mmxsse_to_integer; |
14848 | if (MAYBE_FLOAT_CLASS_P (class1)) | |
14849 | return ix86_cost->fp_move; | |
14850 | if (MAYBE_SSE_CLASS_P (class1)) | |
14851 | return ix86_cost->sse_move; | |
14852 | if (MAYBE_MMX_CLASS_P (class1)) | |
14853 | return ix86_cost->mmx_move; | |
f84aa48a JH |
14854 | return 2; |
14855 | } | |
14856 | ||
a946dd00 JH |
14857 | /* Return 1 if hard register REGNO can hold a value of machine-mode MODE. */ |
14858 | int | |
b96a374d | 14859 | ix86_hard_regno_mode_ok (int regno, enum machine_mode mode) |
a946dd00 JH |
14860 | { |
14861 | /* Flags and only flags can only hold CCmode values. */ | |
14862 | if (CC_REGNO_P (regno)) | |
14863 | return GET_MODE_CLASS (mode) == MODE_CC; | |
14864 | if (GET_MODE_CLASS (mode) == MODE_CC | |
14865 | || GET_MODE_CLASS (mode) == MODE_RANDOM | |
14866 | || GET_MODE_CLASS (mode) == MODE_PARTIAL_INT) | |
14867 | return 0; | |
14868 | if (FP_REGNO_P (regno)) | |
14869 | return VALID_FP_MODE_P (mode); | |
14870 | if (SSE_REGNO_P (regno)) | |
a67a3220 | 14871 | return (TARGET_SSE ? VALID_SSE_REG_MODE (mode) : 0); |
a946dd00 | 14872 | if (MMX_REGNO_P (regno)) |
a67a3220 JH |
14873 | return (TARGET_MMX |
14874 | ? VALID_MMX_REG_MODE (mode) || VALID_MMX_REG_MODE_3DNOW (mode) : 0); | |
a946dd00 JH |
14875 | /* We handle both integer and floats in the general purpose registers. |
14876 | In future we should be able to handle vector modes as well. */ | |
14877 | if (!VALID_INT_MODE_P (mode) && !VALID_FP_MODE_P (mode)) | |
14878 | return 0; | |
14879 | /* Take care for QImode values - they can be in non-QI regs, but then | |
14880 | they do cause partial register stalls. */ | |
d2836273 | 14881 | if (regno < 4 || mode != QImode || TARGET_64BIT) |
a946dd00 JH |
14882 | return 1; |
14883 | return reload_in_progress || reload_completed || !TARGET_PARTIAL_REG_STALL; | |
14884 | } | |
fa79946e JH |
14885 | |
14886 | /* Return the cost of moving data of mode M between a | |
14887 | register and memory. A value of 2 is the default; this cost is | |
14888 | relative to those in `REGISTER_MOVE_COST'. | |
14889 | ||
14890 | If moving between registers and memory is more expensive than | |
14891 | between two registers, you should define this macro to express the | |
a4f31c00 AJ |
14892 | relative cost. |
14893 | ||
fa79946e JH |
14894 | Model also increased moving costs of QImode registers in non |
14895 | Q_REGS classes. | |
14896 | */ | |
14897 | int | |
b96a374d | 14898 | ix86_memory_move_cost (enum machine_mode mode, enum reg_class class, int in) |
fa79946e JH |
14899 | { |
14900 | if (FLOAT_CLASS_P (class)) | |
14901 | { | |
14902 | int index; | |
14903 | switch (mode) | |
14904 | { | |
14905 | case SFmode: | |
14906 | index = 0; | |
14907 | break; | |
14908 | case DFmode: | |
14909 | index = 1; | |
14910 | break; | |
14911 | case XFmode: | |
fa79946e JH |
14912 | index = 2; |
14913 | break; | |
14914 | default: | |
14915 | return 100; | |
14916 | } | |
14917 | return in ? ix86_cost->fp_load [index] : ix86_cost->fp_store [index]; | |
14918 | } | |
14919 | if (SSE_CLASS_P (class)) | |
14920 | { | |
14921 | int index; | |
14922 | switch (GET_MODE_SIZE (mode)) | |
14923 | { | |
14924 | case 4: | |
14925 | index = 0; | |
14926 | break; | |
14927 | case 8: | |
14928 | index = 1; | |
14929 | break; | |
14930 | case 16: | |
14931 | index = 2; | |
14932 | break; | |
14933 | default: | |
14934 | return 100; | |
14935 | } | |
14936 | return in ? ix86_cost->sse_load [index] : ix86_cost->sse_store [index]; | |
14937 | } | |
14938 | if (MMX_CLASS_P (class)) | |
14939 | { | |
14940 | int index; | |
14941 | switch (GET_MODE_SIZE (mode)) | |
14942 | { | |
14943 | case 4: | |
14944 | index = 0; | |
14945 | break; | |
14946 | case 8: | |
14947 | index = 1; | |
14948 | break; | |
14949 | default: | |
14950 | return 100; | |
14951 | } | |
14952 | return in ? ix86_cost->mmx_load [index] : ix86_cost->mmx_store [index]; | |
14953 | } | |
14954 | switch (GET_MODE_SIZE (mode)) | |
14955 | { | |
14956 | case 1: | |
14957 | if (in) | |
14958 | return (Q_CLASS_P (class) ? ix86_cost->int_load[0] | |
14959 | : ix86_cost->movzbl_load); | |
14960 | else | |
14961 | return (Q_CLASS_P (class) ? ix86_cost->int_store[0] | |
14962 | : ix86_cost->int_store[0] + 4); | |
14963 | break; | |
14964 | case 2: | |
14965 | return in ? ix86_cost->int_load[1] : ix86_cost->int_store[1]; | |
14966 | default: | |
14967 | /* Compute number of 32bit moves needed. TFmode is moved as XFmode. */ | |
14968 | if (mode == TFmode) | |
14969 | mode = XFmode; | |
3bb7e126 | 14970 | return ((in ? ix86_cost->int_load[2] : ix86_cost->int_store[2]) |
bce75972 VM |
14971 | * (((int) GET_MODE_SIZE (mode) |
14972 | + UNITS_PER_WORD - 1) / UNITS_PER_WORD)); | |
fa79946e JH |
14973 | } |
14974 | } | |
0ecf09f9 | 14975 | |
3c50106f RH |
14976 | /* Compute a (partial) cost for rtx X. Return true if the complete |
14977 | cost has been computed, and false if subexpressions should be | |
14978 | scanned. In either case, *TOTAL contains the cost result. */ | |
14979 | ||
14980 | static bool | |
b96a374d | 14981 | ix86_rtx_costs (rtx x, int code, int outer_code, int *total) |
3c50106f RH |
14982 | { |
14983 | enum machine_mode mode = GET_MODE (x); | |
14984 | ||
14985 | switch (code) | |
14986 | { | |
14987 | case CONST_INT: | |
14988 | case CONST: | |
14989 | case LABEL_REF: | |
14990 | case SYMBOL_REF: | |
14991 | if (TARGET_64BIT && !x86_64_sign_extended_value (x)) | |
14992 | *total = 3; | |
14993 | else if (TARGET_64BIT && !x86_64_zero_extended_value (x)) | |
14994 | *total = 2; | |
3504dad3 JH |
14995 | else if (flag_pic && SYMBOLIC_CONST (x) |
14996 | && (!TARGET_64BIT | |
14997 | || (!GET_CODE (x) != LABEL_REF | |
14998 | && (GET_CODE (x) != SYMBOL_REF | |
12969f45 | 14999 | || !SYMBOL_REF_LOCAL_P (x))))) |
3c50106f RH |
15000 | *total = 1; |
15001 | else | |
15002 | *total = 0; | |
15003 | return true; | |
15004 | ||
15005 | case CONST_DOUBLE: | |
15006 | if (mode == VOIDmode) | |
15007 | *total = 0; | |
15008 | else | |
15009 | switch (standard_80387_constant_p (x)) | |
15010 | { | |
15011 | case 1: /* 0.0 */ | |
15012 | *total = 1; | |
15013 | break; | |
881b2a96 | 15014 | default: /* Other constants */ |
3c50106f RH |
15015 | *total = 2; |
15016 | break; | |
881b2a96 RS |
15017 | case 0: |
15018 | case -1: | |
3c50106f RH |
15019 | /* Start with (MEM (SYMBOL_REF)), since that's where |
15020 | it'll probably end up. Add a penalty for size. */ | |
15021 | *total = (COSTS_N_INSNS (1) | |
3504dad3 | 15022 | + (flag_pic != 0 && !TARGET_64BIT) |
3c50106f RH |
15023 | + (mode == SFmode ? 0 : mode == DFmode ? 1 : 2)); |
15024 | break; | |
15025 | } | |
15026 | return true; | |
15027 | ||
15028 | case ZERO_EXTEND: | |
15029 | /* The zero extensions is often completely free on x86_64, so make | |
15030 | it as cheap as possible. */ | |
15031 | if (TARGET_64BIT && mode == DImode | |
15032 | && GET_MODE (XEXP (x, 0)) == SImode) | |
15033 | *total = 1; | |
15034 | else if (TARGET_ZERO_EXTEND_WITH_AND) | |
15035 | *total = COSTS_N_INSNS (ix86_cost->add); | |
15036 | else | |
15037 | *total = COSTS_N_INSNS (ix86_cost->movzx); | |
15038 | return false; | |
15039 | ||
15040 | case SIGN_EXTEND: | |
15041 | *total = COSTS_N_INSNS (ix86_cost->movsx); | |
15042 | return false; | |
15043 | ||
15044 | case ASHIFT: | |
15045 | if (GET_CODE (XEXP (x, 1)) == CONST_INT | |
15046 | && (GET_MODE (XEXP (x, 0)) != DImode || TARGET_64BIT)) | |
15047 | { | |
15048 | HOST_WIDE_INT value = INTVAL (XEXP (x, 1)); | |
15049 | if (value == 1) | |
15050 | { | |
15051 | *total = COSTS_N_INSNS (ix86_cost->add); | |
15052 | return false; | |
15053 | } | |
15054 | if ((value == 2 || value == 3) | |
15055 | && !TARGET_DECOMPOSE_LEA | |
15056 | && ix86_cost->lea <= ix86_cost->shift_const) | |
15057 | { | |
15058 | *total = COSTS_N_INSNS (ix86_cost->lea); | |
15059 | return false; | |
15060 | } | |
15061 | } | |
5efb1046 | 15062 | /* FALLTHRU */ |
3c50106f RH |
15063 | |
15064 | case ROTATE: | |
15065 | case ASHIFTRT: | |
15066 | case LSHIFTRT: | |
15067 | case ROTATERT: | |
15068 | if (!TARGET_64BIT && GET_MODE (XEXP (x, 0)) == DImode) | |
15069 | { | |
15070 | if (GET_CODE (XEXP (x, 1)) == CONST_INT) | |
15071 | { | |
15072 | if (INTVAL (XEXP (x, 1)) > 32) | |
15073 | *total = COSTS_N_INSNS(ix86_cost->shift_const + 2); | |
15074 | else | |
15075 | *total = COSTS_N_INSNS(ix86_cost->shift_const * 2); | |
15076 | } | |
15077 | else | |
15078 | { | |
15079 | if (GET_CODE (XEXP (x, 1)) == AND) | |
15080 | *total = COSTS_N_INSNS(ix86_cost->shift_var * 2); | |
15081 | else | |
15082 | *total = COSTS_N_INSNS(ix86_cost->shift_var * 6 + 2); | |
15083 | } | |
15084 | } | |
15085 | else | |
15086 | { | |
15087 | if (GET_CODE (XEXP (x, 1)) == CONST_INT) | |
15088 | *total = COSTS_N_INSNS (ix86_cost->shift_const); | |
15089 | else | |
15090 | *total = COSTS_N_INSNS (ix86_cost->shift_var); | |
15091 | } | |
15092 | return false; | |
15093 | ||
15094 | case MULT: | |
15095 | if (FLOAT_MODE_P (mode)) | |
15096 | *total = COSTS_N_INSNS (ix86_cost->fmul); | |
15097 | else if (GET_CODE (XEXP (x, 1)) == CONST_INT) | |
15098 | { | |
15099 | unsigned HOST_WIDE_INT value = INTVAL (XEXP (x, 1)); | |
15100 | int nbits; | |
15101 | ||
15102 | for (nbits = 0; value != 0; value >>= 1) | |
15103 | nbits++; | |
15104 | ||
15105 | *total = COSTS_N_INSNS (ix86_cost->mult_init[MODE_INDEX (mode)] | |
15106 | + nbits * ix86_cost->mult_bit); | |
15107 | } | |
15108 | else | |
15109 | { | |
15110 | /* This is arbitrary */ | |
15111 | *total = COSTS_N_INSNS (ix86_cost->mult_init[MODE_INDEX (mode)] | |
15112 | + 7 * ix86_cost->mult_bit); | |
15113 | } | |
15114 | return false; | |
15115 | ||
15116 | case DIV: | |
15117 | case UDIV: | |
15118 | case MOD: | |
15119 | case UMOD: | |
15120 | if (FLOAT_MODE_P (mode)) | |
15121 | *total = COSTS_N_INSNS (ix86_cost->fdiv); | |
15122 | else | |
15123 | *total = COSTS_N_INSNS (ix86_cost->divide[MODE_INDEX (mode)]); | |
15124 | return false; | |
15125 | ||
15126 | case PLUS: | |
15127 | if (FLOAT_MODE_P (mode)) | |
15128 | *total = COSTS_N_INSNS (ix86_cost->fadd); | |
15129 | else if (!TARGET_DECOMPOSE_LEA | |
15130 | && GET_MODE_CLASS (mode) == MODE_INT | |
15131 | && GET_MODE_BITSIZE (mode) <= GET_MODE_BITSIZE (Pmode)) | |
15132 | { | |
15133 | if (GET_CODE (XEXP (x, 0)) == PLUS | |
15134 | && GET_CODE (XEXP (XEXP (x, 0), 0)) == MULT | |
15135 | && GET_CODE (XEXP (XEXP (XEXP (x, 0), 0), 1)) == CONST_INT | |
15136 | && CONSTANT_P (XEXP (x, 1))) | |
15137 | { | |
15138 | HOST_WIDE_INT val = INTVAL (XEXP (XEXP (XEXP (x, 0), 0), 1)); | |
15139 | if (val == 2 || val == 4 || val == 8) | |
15140 | { | |
15141 | *total = COSTS_N_INSNS (ix86_cost->lea); | |
15142 | *total += rtx_cost (XEXP (XEXP (x, 0), 1), outer_code); | |
15143 | *total += rtx_cost (XEXP (XEXP (XEXP (x, 0), 0), 0), | |
15144 | outer_code); | |
15145 | *total += rtx_cost (XEXP (x, 1), outer_code); | |
15146 | return true; | |
15147 | } | |
15148 | } | |
15149 | else if (GET_CODE (XEXP (x, 0)) == MULT | |
15150 | && GET_CODE (XEXP (XEXP (x, 0), 1)) == CONST_INT) | |
15151 | { | |
15152 | HOST_WIDE_INT val = INTVAL (XEXP (XEXP (x, 0), 1)); | |
15153 | if (val == 2 || val == 4 || val == 8) | |
15154 | { | |
15155 | *total = COSTS_N_INSNS (ix86_cost->lea); | |
15156 | *total += rtx_cost (XEXP (XEXP (x, 0), 0), outer_code); | |
15157 | *total += rtx_cost (XEXP (x, 1), outer_code); | |
15158 | return true; | |
15159 | } | |
15160 | } | |
15161 | else if (GET_CODE (XEXP (x, 0)) == PLUS) | |
15162 | { | |
15163 | *total = COSTS_N_INSNS (ix86_cost->lea); | |
15164 | *total += rtx_cost (XEXP (XEXP (x, 0), 0), outer_code); | |
15165 | *total += rtx_cost (XEXP (XEXP (x, 0), 1), outer_code); | |
15166 | *total += rtx_cost (XEXP (x, 1), outer_code); | |
15167 | return true; | |
15168 | } | |
15169 | } | |
5efb1046 | 15170 | /* FALLTHRU */ |
3c50106f RH |
15171 | |
15172 | case MINUS: | |
15173 | if (FLOAT_MODE_P (mode)) | |
15174 | { | |
15175 | *total = COSTS_N_INSNS (ix86_cost->fadd); | |
15176 | return false; | |
15177 | } | |
5efb1046 | 15178 | /* FALLTHRU */ |
3c50106f RH |
15179 | |
15180 | case AND: | |
15181 | case IOR: | |
15182 | case XOR: | |
15183 | if (!TARGET_64BIT && mode == DImode) | |
15184 | { | |
15185 | *total = (COSTS_N_INSNS (ix86_cost->add) * 2 | |
15186 | + (rtx_cost (XEXP (x, 0), outer_code) | |
15187 | << (GET_MODE (XEXP (x, 0)) != DImode)) | |
15188 | + (rtx_cost (XEXP (x, 1), outer_code) | |
b96a374d | 15189 | << (GET_MODE (XEXP (x, 1)) != DImode))); |
3c50106f RH |
15190 | return true; |
15191 | } | |
5efb1046 | 15192 | /* FALLTHRU */ |
3c50106f RH |
15193 | |
15194 | case NEG: | |
15195 | if (FLOAT_MODE_P (mode)) | |
15196 | { | |
15197 | *total = COSTS_N_INSNS (ix86_cost->fchs); | |
15198 | return false; | |
15199 | } | |
5efb1046 | 15200 | /* FALLTHRU */ |
3c50106f RH |
15201 | |
15202 | case NOT: | |
15203 | if (!TARGET_64BIT && mode == DImode) | |
15204 | *total = COSTS_N_INSNS (ix86_cost->add * 2); | |
15205 | else | |
15206 | *total = COSTS_N_INSNS (ix86_cost->add); | |
15207 | return false; | |
15208 | ||
15209 | case FLOAT_EXTEND: | |
15210 | if (!TARGET_SSE_MATH || !VALID_SSE_REG_MODE (mode)) | |
15211 | *total = 0; | |
15212 | return false; | |
15213 | ||
15214 | case ABS: | |
15215 | if (FLOAT_MODE_P (mode)) | |
15216 | *total = COSTS_N_INSNS (ix86_cost->fabs); | |
15217 | return false; | |
15218 | ||
15219 | case SQRT: | |
15220 | if (FLOAT_MODE_P (mode)) | |
15221 | *total = COSTS_N_INSNS (ix86_cost->fsqrt); | |
15222 | return false; | |
15223 | ||
74dc3e94 RH |
15224 | case UNSPEC: |
15225 | if (XINT (x, 1) == UNSPEC_TP) | |
15226 | *total = 0; | |
15227 | return false; | |
15228 | ||
3c50106f RH |
15229 | default: |
15230 | return false; | |
15231 | } | |
15232 | } | |
15233 | ||
21c318ba | 15234 | #if defined (DO_GLOBAL_CTORS_BODY) && defined (HAS_INIT_SECTION) |
2cc07db4 | 15235 | static void |
b96a374d | 15236 | ix86_svr3_asm_out_constructor (rtx symbol, int priority ATTRIBUTE_UNUSED) |
2cc07db4 RH |
15237 | { |
15238 | init_section (); | |
15239 | fputs ("\tpushl $", asm_out_file); | |
15240 | assemble_name (asm_out_file, XSTR (symbol, 0)); | |
15241 | fputc ('\n', asm_out_file); | |
15242 | } | |
15243 | #endif | |
162f023b | 15244 | |
b069de3b SS |
15245 | #if TARGET_MACHO |
15246 | ||
15247 | static int current_machopic_label_num; | |
15248 | ||
15249 | /* Given a symbol name and its associated stub, write out the | |
15250 | definition of the stub. */ | |
15251 | ||
15252 | void | |
b96a374d | 15253 | machopic_output_stub (FILE *file, const char *symb, const char *stub) |
b069de3b SS |
15254 | { |
15255 | unsigned int length; | |
15256 | char *binder_name, *symbol_name, lazy_ptr_name[32]; | |
15257 | int label = ++current_machopic_label_num; | |
15258 | ||
15259 | /* Lose our funky encoding stuff so it doesn't contaminate the stub. */ | |
15260 | symb = (*targetm.strip_name_encoding) (symb); | |
15261 | ||
15262 | length = strlen (stub); | |
15263 | binder_name = alloca (length + 32); | |
15264 | GEN_BINDER_NAME_FOR_STUB (binder_name, stub, length); | |
15265 | ||
15266 | length = strlen (symb); | |
15267 | symbol_name = alloca (length + 32); | |
15268 | GEN_SYMBOL_NAME_FOR_SYMBOL (symbol_name, symb, length); | |
15269 | ||
15270 | sprintf (lazy_ptr_name, "L%d$lz", label); | |
15271 | ||
15272 | if (MACHOPIC_PURE) | |
15273 | machopic_picsymbol_stub_section (); | |
15274 | else | |
15275 | machopic_symbol_stub_section (); | |
15276 | ||
15277 | fprintf (file, "%s:\n", stub); | |
15278 | fprintf (file, "\t.indirect_symbol %s\n", symbol_name); | |
15279 | ||
15280 | if (MACHOPIC_PURE) | |
15281 | { | |
15282 | fprintf (file, "\tcall LPC$%d\nLPC$%d:\tpopl %%eax\n", label, label); | |
15283 | fprintf (file, "\tmovl %s-LPC$%d(%%eax),%%edx\n", lazy_ptr_name, label); | |
15284 | fprintf (file, "\tjmp %%edx\n"); | |
15285 | } | |
15286 | else | |
15287 | fprintf (file, "\tjmp *%s\n", lazy_ptr_name); | |
b96a374d | 15288 | |
b069de3b | 15289 | fprintf (file, "%s:\n", binder_name); |
b96a374d | 15290 | |
b069de3b SS |
15291 | if (MACHOPIC_PURE) |
15292 | { | |
15293 | fprintf (file, "\tlea %s-LPC$%d(%%eax),%%eax\n", lazy_ptr_name, label); | |
15294 | fprintf (file, "\tpushl %%eax\n"); | |
15295 | } | |
15296 | else | |
15297 | fprintf (file, "\t pushl $%s\n", lazy_ptr_name); | |
15298 | ||
15299 | fprintf (file, "\tjmp dyld_stub_binding_helper\n"); | |
15300 | ||
15301 | machopic_lazy_symbol_ptr_section (); | |
15302 | fprintf (file, "%s:\n", lazy_ptr_name); | |
15303 | fprintf (file, "\t.indirect_symbol %s\n", symbol_name); | |
15304 | fprintf (file, "\t.long %s\n", binder_name); | |
15305 | } | |
15306 | #endif /* TARGET_MACHO */ | |
15307 | ||
162f023b JH |
15308 | /* Order the registers for register allocator. */ |
15309 | ||
15310 | void | |
b96a374d | 15311 | x86_order_regs_for_local_alloc (void) |
162f023b JH |
15312 | { |
15313 | int pos = 0; | |
15314 | int i; | |
15315 | ||
15316 | /* First allocate the local general purpose registers. */ | |
15317 | for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) | |
15318 | if (GENERAL_REGNO_P (i) && call_used_regs[i]) | |
15319 | reg_alloc_order [pos++] = i; | |
15320 | ||
15321 | /* Global general purpose registers. */ | |
15322 | for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) | |
15323 | if (GENERAL_REGNO_P (i) && !call_used_regs[i]) | |
15324 | reg_alloc_order [pos++] = i; | |
15325 | ||
15326 | /* x87 registers come first in case we are doing FP math | |
15327 | using them. */ | |
15328 | if (!TARGET_SSE_MATH) | |
15329 | for (i = FIRST_STACK_REG; i <= LAST_STACK_REG; i++) | |
15330 | reg_alloc_order [pos++] = i; | |
fce5a9f2 | 15331 | |
162f023b JH |
15332 | /* SSE registers. */ |
15333 | for (i = FIRST_SSE_REG; i <= LAST_SSE_REG; i++) | |
15334 | reg_alloc_order [pos++] = i; | |
15335 | for (i = FIRST_REX_SSE_REG; i <= LAST_REX_SSE_REG; i++) | |
15336 | reg_alloc_order [pos++] = i; | |
15337 | ||
d1f87653 | 15338 | /* x87 registers. */ |
162f023b JH |
15339 | if (TARGET_SSE_MATH) |
15340 | for (i = FIRST_STACK_REG; i <= LAST_STACK_REG; i++) | |
15341 | reg_alloc_order [pos++] = i; | |
15342 | ||
15343 | for (i = FIRST_MMX_REG; i <= LAST_MMX_REG; i++) | |
15344 | reg_alloc_order [pos++] = i; | |
15345 | ||
15346 | /* Initialize the rest of array as we do not allocate some registers | |
15347 | at all. */ | |
15348 | while (pos < FIRST_PSEUDO_REGISTER) | |
15349 | reg_alloc_order [pos++] = 0; | |
15350 | } | |
194734e9 | 15351 | |
4977bab6 ZW |
15352 | #ifndef TARGET_USE_MS_BITFIELD_LAYOUT |
15353 | #define TARGET_USE_MS_BITFIELD_LAYOUT 0 | |
15354 | #endif | |
15355 | ||
fe77449a DR |
15356 | /* Handle a "ms_struct" or "gcc_struct" attribute; arguments as in |
15357 | struct attribute_spec.handler. */ | |
15358 | static tree | |
b96a374d AJ |
15359 | ix86_handle_struct_attribute (tree *node, tree name, |
15360 | tree args ATTRIBUTE_UNUSED, | |
15361 | int flags ATTRIBUTE_UNUSED, bool *no_add_attrs) | |
fe77449a DR |
15362 | { |
15363 | tree *type = NULL; | |
15364 | if (DECL_P (*node)) | |
15365 | { | |
15366 | if (TREE_CODE (*node) == TYPE_DECL) | |
15367 | type = &TREE_TYPE (*node); | |
15368 | } | |
15369 | else | |
15370 | type = node; | |
15371 | ||
15372 | if (!(type && (TREE_CODE (*type) == RECORD_TYPE | |
15373 | || TREE_CODE (*type) == UNION_TYPE))) | |
15374 | { | |
15375 | warning ("`%s' attribute ignored", IDENTIFIER_POINTER (name)); | |
15376 | *no_add_attrs = true; | |
15377 | } | |
15378 | ||
15379 | else if ((is_attribute_p ("ms_struct", name) | |
15380 | && lookup_attribute ("gcc_struct", TYPE_ATTRIBUTES (*type))) | |
15381 | || ((is_attribute_p ("gcc_struct", name) | |
15382 | && lookup_attribute ("ms_struct", TYPE_ATTRIBUTES (*type))))) | |
15383 | { | |
15384 | warning ("`%s' incompatible attribute ignored", | |
15385 | IDENTIFIER_POINTER (name)); | |
15386 | *no_add_attrs = true; | |
15387 | } | |
15388 | ||
15389 | return NULL_TREE; | |
15390 | } | |
15391 | ||
4977bab6 | 15392 | static bool |
b96a374d | 15393 | ix86_ms_bitfield_layout_p (tree record_type) |
4977bab6 | 15394 | { |
fe77449a | 15395 | return (TARGET_USE_MS_BITFIELD_LAYOUT && |
021bad8e | 15396 | !lookup_attribute ("gcc_struct", TYPE_ATTRIBUTES (record_type))) |
fe77449a | 15397 | || lookup_attribute ("ms_struct", TYPE_ATTRIBUTES (record_type)); |
4977bab6 ZW |
15398 | } |
15399 | ||
483ab821 MM |
15400 | /* Returns an expression indicating where the this parameter is |
15401 | located on entry to the FUNCTION. */ | |
15402 | ||
15403 | static rtx | |
b96a374d | 15404 | x86_this_parameter (tree function) |
483ab821 MM |
15405 | { |
15406 | tree type = TREE_TYPE (function); | |
15407 | ||
3961e8fe RH |
15408 | if (TARGET_64BIT) |
15409 | { | |
61f71b34 | 15410 | int n = aggregate_value_p (TREE_TYPE (type), type) != 0; |
3961e8fe RH |
15411 | return gen_rtx_REG (DImode, x86_64_int_parameter_registers[n]); |
15412 | } | |
15413 | ||
e767b5be | 15414 | if (ix86_function_regparm (type, function) > 0) |
483ab821 MM |
15415 | { |
15416 | tree parm; | |
15417 | ||
15418 | parm = TYPE_ARG_TYPES (type); | |
15419 | /* Figure out whether or not the function has a variable number of | |
15420 | arguments. */ | |
3961e8fe | 15421 | for (; parm; parm = TREE_CHAIN (parm)) |
483ab821 MM |
15422 | if (TREE_VALUE (parm) == void_type_node) |
15423 | break; | |
e767b5be | 15424 | /* If not, the this parameter is in the first argument. */ |
483ab821 | 15425 | if (parm) |
e767b5be JH |
15426 | { |
15427 | int regno = 0; | |
15428 | if (lookup_attribute ("fastcall", TYPE_ATTRIBUTES (type))) | |
15429 | regno = 2; | |
02e02343 | 15430 | return gen_rtx_REG (SImode, regno); |
e767b5be | 15431 | } |
483ab821 MM |
15432 | } |
15433 | ||
61f71b34 | 15434 | if (aggregate_value_p (TREE_TYPE (type), type)) |
483ab821 MM |
15435 | return gen_rtx_MEM (SImode, plus_constant (stack_pointer_rtx, 8)); |
15436 | else | |
15437 | return gen_rtx_MEM (SImode, plus_constant (stack_pointer_rtx, 4)); | |
15438 | } | |
15439 | ||
3961e8fe RH |
15440 | /* Determine whether x86_output_mi_thunk can succeed. */ |
15441 | ||
15442 | static bool | |
b96a374d AJ |
15443 | x86_can_output_mi_thunk (tree thunk ATTRIBUTE_UNUSED, |
15444 | HOST_WIDE_INT delta ATTRIBUTE_UNUSED, | |
15445 | HOST_WIDE_INT vcall_offset, tree function) | |
3961e8fe RH |
15446 | { |
15447 | /* 64-bit can handle anything. */ | |
15448 | if (TARGET_64BIT) | |
15449 | return true; | |
15450 | ||
15451 | /* For 32-bit, everything's fine if we have one free register. */ | |
e767b5be | 15452 | if (ix86_function_regparm (TREE_TYPE (function), function) < 3) |
3961e8fe RH |
15453 | return true; |
15454 | ||
15455 | /* Need a free register for vcall_offset. */ | |
15456 | if (vcall_offset) | |
15457 | return false; | |
15458 | ||
15459 | /* Need a free register for GOT references. */ | |
15460 | if (flag_pic && !(*targetm.binds_local_p) (function)) | |
15461 | return false; | |
15462 | ||
15463 | /* Otherwise ok. */ | |
15464 | return true; | |
15465 | } | |
15466 | ||
15467 | /* Output the assembler code for a thunk function. THUNK_DECL is the | |
15468 | declaration for the thunk function itself, FUNCTION is the decl for | |
15469 | the target function. DELTA is an immediate constant offset to be | |
272d0bee | 15470 | added to THIS. If VCALL_OFFSET is nonzero, the word at |
3961e8fe | 15471 | *(*this + vcall_offset) should be added to THIS. */ |
483ab821 | 15472 | |
c590b625 | 15473 | static void |
b96a374d AJ |
15474 | x86_output_mi_thunk (FILE *file ATTRIBUTE_UNUSED, |
15475 | tree thunk ATTRIBUTE_UNUSED, HOST_WIDE_INT delta, | |
15476 | HOST_WIDE_INT vcall_offset, tree function) | |
194734e9 | 15477 | { |
194734e9 | 15478 | rtx xops[3]; |
3961e8fe RH |
15479 | rtx this = x86_this_parameter (function); |
15480 | rtx this_reg, tmp; | |
194734e9 | 15481 | |
3961e8fe RH |
15482 | /* If VCALL_OFFSET, we'll need THIS in a register. Might as well |
15483 | pull it in now and let DELTA benefit. */ | |
15484 | if (REG_P (this)) | |
15485 | this_reg = this; | |
15486 | else if (vcall_offset) | |
15487 | { | |
15488 | /* Put the this parameter into %eax. */ | |
15489 | xops[0] = this; | |
15490 | xops[1] = this_reg = gen_rtx_REG (Pmode, 0); | |
15491 | output_asm_insn ("mov{l}\t{%0, %1|%1, %0}", xops); | |
15492 | } | |
15493 | else | |
15494 | this_reg = NULL_RTX; | |
15495 | ||
15496 | /* Adjust the this parameter by a fixed constant. */ | |
15497 | if (delta) | |
194734e9 | 15498 | { |
483ab821 | 15499 | xops[0] = GEN_INT (delta); |
3961e8fe RH |
15500 | xops[1] = this_reg ? this_reg : this; |
15501 | if (TARGET_64BIT) | |
194734e9 | 15502 | { |
3961e8fe RH |
15503 | if (!x86_64_general_operand (xops[0], DImode)) |
15504 | { | |
15505 | tmp = gen_rtx_REG (DImode, FIRST_REX_INT_REG + 2 /* R10 */); | |
15506 | xops[1] = tmp; | |
15507 | output_asm_insn ("mov{q}\t{%1, %0|%0, %1}", xops); | |
15508 | xops[0] = tmp; | |
15509 | xops[1] = this; | |
15510 | } | |
15511 | output_asm_insn ("add{q}\t{%0, %1|%1, %0}", xops); | |
194734e9 JH |
15512 | } |
15513 | else | |
3961e8fe | 15514 | output_asm_insn ("add{l}\t{%0, %1|%1, %0}", xops); |
194734e9 | 15515 | } |
3961e8fe RH |
15516 | |
15517 | /* Adjust the this parameter by a value stored in the vtable. */ | |
15518 | if (vcall_offset) | |
194734e9 | 15519 | { |
3961e8fe RH |
15520 | if (TARGET_64BIT) |
15521 | tmp = gen_rtx_REG (DImode, FIRST_REX_INT_REG + 2 /* R10 */); | |
15522 | else | |
e767b5be JH |
15523 | { |
15524 | int tmp_regno = 2 /* ECX */; | |
15525 | if (lookup_attribute ("fastcall", | |
15526 | TYPE_ATTRIBUTES (TREE_TYPE (function)))) | |
15527 | tmp_regno = 0 /* EAX */; | |
15528 | tmp = gen_rtx_REG (SImode, tmp_regno); | |
15529 | } | |
483ab821 | 15530 | |
3961e8fe RH |
15531 | xops[0] = gen_rtx_MEM (Pmode, this_reg); |
15532 | xops[1] = tmp; | |
15533 | if (TARGET_64BIT) | |
15534 | output_asm_insn ("mov{q}\t{%0, %1|%1, %0}", xops); | |
15535 | else | |
15536 | output_asm_insn ("mov{l}\t{%0, %1|%1, %0}", xops); | |
483ab821 | 15537 | |
3961e8fe RH |
15538 | /* Adjust the this parameter. */ |
15539 | xops[0] = gen_rtx_MEM (Pmode, plus_constant (tmp, vcall_offset)); | |
15540 | if (TARGET_64BIT && !memory_operand (xops[0], Pmode)) | |
15541 | { | |
15542 | rtx tmp2 = gen_rtx_REG (DImode, FIRST_REX_INT_REG + 3 /* R11 */); | |
15543 | xops[0] = GEN_INT (vcall_offset); | |
15544 | xops[1] = tmp2; | |
15545 | output_asm_insn ("mov{q}\t{%0, %1|%1, %0}", xops); | |
15546 | xops[0] = gen_rtx_MEM (Pmode, gen_rtx_PLUS (Pmode, tmp, tmp2)); | |
483ab821 | 15547 | } |
3961e8fe RH |
15548 | xops[1] = this_reg; |
15549 | if (TARGET_64BIT) | |
15550 | output_asm_insn ("add{q}\t{%0, %1|%1, %0}", xops); | |
15551 | else | |
15552 | output_asm_insn ("add{l}\t{%0, %1|%1, %0}", xops); | |
15553 | } | |
194734e9 | 15554 | |
3961e8fe RH |
15555 | /* If necessary, drop THIS back to its stack slot. */ |
15556 | if (this_reg && this_reg != this) | |
15557 | { | |
15558 | xops[0] = this_reg; | |
15559 | xops[1] = this; | |
15560 | output_asm_insn ("mov{l}\t{%0, %1|%1, %0}", xops); | |
15561 | } | |
194734e9 | 15562 | |
89ce1c8f | 15563 | xops[0] = XEXP (DECL_RTL (function), 0); |
3961e8fe RH |
15564 | if (TARGET_64BIT) |
15565 | { | |
15566 | if (!flag_pic || (*targetm.binds_local_p) (function)) | |
15567 | output_asm_insn ("jmp\t%P0", xops); | |
15568 | else | |
fcbe3b89 | 15569 | { |
89ce1c8f | 15570 | tmp = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, xops[0]), UNSPEC_GOTPCREL); |
fcbe3b89 RH |
15571 | tmp = gen_rtx_CONST (Pmode, tmp); |
15572 | tmp = gen_rtx_MEM (QImode, tmp); | |
15573 | xops[0] = tmp; | |
15574 | output_asm_insn ("jmp\t%A0", xops); | |
15575 | } | |
3961e8fe RH |
15576 | } |
15577 | else | |
15578 | { | |
15579 | if (!flag_pic || (*targetm.binds_local_p) (function)) | |
15580 | output_asm_insn ("jmp\t%P0", xops); | |
194734e9 | 15581 | else |
21ff35fb | 15582 | #if TARGET_MACHO |
095fa594 SH |
15583 | if (TARGET_MACHO) |
15584 | { | |
0f901c4c | 15585 | const char *ip = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (function)); |
095fa594 SH |
15586 | tmp = gen_rtx_SYMBOL_REF (Pmode, machopic_stub_name (ip)); |
15587 | tmp = gen_rtx_MEM (QImode, tmp); | |
15588 | xops[0] = tmp; | |
15589 | output_asm_insn ("jmp\t%0", xops); | |
15590 | } | |
15591 | else | |
15592 | #endif /* TARGET_MACHO */ | |
194734e9 | 15593 | { |
3961e8fe RH |
15594 | tmp = gen_rtx_REG (SImode, 2 /* ECX */); |
15595 | output_set_got (tmp); | |
15596 | ||
15597 | xops[1] = tmp; | |
15598 | output_asm_insn ("mov{l}\t{%0@GOT(%1), %1|%1, %0@GOT[%1]}", xops); | |
15599 | output_asm_insn ("jmp\t{*}%1", xops); | |
194734e9 JH |
15600 | } |
15601 | } | |
15602 | } | |
e2500fed | 15603 | |
1bc7c5b6 | 15604 | static void |
b96a374d | 15605 | x86_file_start (void) |
1bc7c5b6 ZW |
15606 | { |
15607 | default_file_start (); | |
15608 | if (X86_FILE_START_VERSION_DIRECTIVE) | |
15609 | fputs ("\t.version\t\"01.01\"\n", asm_out_file); | |
15610 | if (X86_FILE_START_FLTUSED) | |
15611 | fputs ("\t.global\t__fltused\n", asm_out_file); | |
15612 | if (ix86_asm_dialect == ASM_INTEL) | |
15613 | fputs ("\t.intel_syntax\n", asm_out_file); | |
15614 | } | |
15615 | ||
e932b21b | 15616 | int |
b96a374d | 15617 | x86_field_alignment (tree field, int computed) |
e932b21b JH |
15618 | { |
15619 | enum machine_mode mode; | |
ad9335eb JJ |
15620 | tree type = TREE_TYPE (field); |
15621 | ||
15622 | if (TARGET_64BIT || TARGET_ALIGN_DOUBLE) | |
e932b21b | 15623 | return computed; |
ad9335eb JJ |
15624 | mode = TYPE_MODE (TREE_CODE (type) == ARRAY_TYPE |
15625 | ? get_inner_array_type (type) : type); | |
39e3a681 JJ |
15626 | if (mode == DFmode || mode == DCmode |
15627 | || GET_MODE_CLASS (mode) == MODE_INT | |
15628 | || GET_MODE_CLASS (mode) == MODE_COMPLEX_INT) | |
e932b21b JH |
15629 | return MIN (32, computed); |
15630 | return computed; | |
15631 | } | |
15632 | ||
a5fa1ecd JH |
15633 | /* Output assembler code to FILE to increment profiler label # LABELNO |
15634 | for profiling a function entry. */ | |
15635 | void | |
b96a374d | 15636 | x86_function_profiler (FILE *file, int labelno ATTRIBUTE_UNUSED) |
a5fa1ecd JH |
15637 | { |
15638 | if (TARGET_64BIT) | |
15639 | if (flag_pic) | |
15640 | { | |
15641 | #ifndef NO_PROFILE_COUNTERS | |
15642 | fprintf (file, "\tleaq\t%sP%d@(%%rip),%%r11\n", LPREFIX, labelno); | |
15643 | #endif | |
15644 | fprintf (file, "\tcall\t*%s@GOTPCREL(%%rip)\n", MCOUNT_NAME); | |
15645 | } | |
15646 | else | |
15647 | { | |
15648 | #ifndef NO_PROFILE_COUNTERS | |
15649 | fprintf (file, "\tmovq\t$%sP%d,%%r11\n", LPREFIX, labelno); | |
15650 | #endif | |
15651 | fprintf (file, "\tcall\t%s\n", MCOUNT_NAME); | |
15652 | } | |
15653 | else if (flag_pic) | |
15654 | { | |
15655 | #ifndef NO_PROFILE_COUNTERS | |
15656 | fprintf (file, "\tleal\t%sP%d@GOTOFF(%%ebx),%%%s\n", | |
15657 | LPREFIX, labelno, PROFILE_COUNT_REGISTER); | |
15658 | #endif | |
15659 | fprintf (file, "\tcall\t*%s@GOT(%%ebx)\n", MCOUNT_NAME); | |
15660 | } | |
15661 | else | |
15662 | { | |
15663 | #ifndef NO_PROFILE_COUNTERS | |
ff6e2d3e | 15664 | fprintf (file, "\tmovl\t$%sP%d,%%%s\n", LPREFIX, labelno, |
a5fa1ecd JH |
15665 | PROFILE_COUNT_REGISTER); |
15666 | #endif | |
15667 | fprintf (file, "\tcall\t%s\n", MCOUNT_NAME); | |
15668 | } | |
15669 | } | |
15670 | ||
d2c49530 JH |
15671 | /* We don't have exact information about the insn sizes, but we may assume |
15672 | quite safely that we are informed about all 1 byte insns and memory | |
c51e6d85 | 15673 | address sizes. This is enough to eliminate unnecessary padding in |
d2c49530 JH |
15674 | 99% of cases. */ |
15675 | ||
15676 | static int | |
b96a374d | 15677 | min_insn_size (rtx insn) |
d2c49530 JH |
15678 | { |
15679 | int l = 0; | |
15680 | ||
15681 | if (!INSN_P (insn) || !active_insn_p (insn)) | |
15682 | return 0; | |
15683 | ||
15684 | /* Discard alignments we've emit and jump instructions. */ | |
15685 | if (GET_CODE (PATTERN (insn)) == UNSPEC_VOLATILE | |
15686 | && XINT (PATTERN (insn), 1) == UNSPECV_ALIGN) | |
15687 | return 0; | |
15688 | if (GET_CODE (insn) == JUMP_INSN | |
15689 | && (GET_CODE (PATTERN (insn)) == ADDR_VEC | |
15690 | || GET_CODE (PATTERN (insn)) == ADDR_DIFF_VEC)) | |
15691 | return 0; | |
15692 | ||
15693 | /* Important case - calls are always 5 bytes. | |
15694 | It is common to have many calls in the row. */ | |
15695 | if (GET_CODE (insn) == CALL_INSN | |
15696 | && symbolic_reference_mentioned_p (PATTERN (insn)) | |
15697 | && !SIBLING_CALL_P (insn)) | |
15698 | return 5; | |
15699 | if (get_attr_length (insn) <= 1) | |
15700 | return 1; | |
15701 | ||
15702 | /* For normal instructions we may rely on the sizes of addresses | |
15703 | and the presence of symbol to require 4 bytes of encoding. | |
15704 | This is not the case for jumps where references are PC relative. */ | |
15705 | if (GET_CODE (insn) != JUMP_INSN) | |
15706 | { | |
15707 | l = get_attr_length_address (insn); | |
15708 | if (l < 4 && symbolic_reference_mentioned_p (PATTERN (insn))) | |
15709 | l = 4; | |
15710 | } | |
15711 | if (l) | |
15712 | return 1+l; | |
15713 | else | |
15714 | return 2; | |
15715 | } | |
15716 | ||
c51e6d85 | 15717 | /* AMD K8 core mispredicts jumps when there are more than 3 jumps in 16 byte |
d2c49530 JH |
15718 | window. */ |
15719 | ||
15720 | static void | |
be04394b | 15721 | ix86_avoid_jump_misspredicts (void) |
d2c49530 JH |
15722 | { |
15723 | rtx insn, start = get_insns (); | |
15724 | int nbytes = 0, njumps = 0; | |
15725 | int isjump = 0; | |
15726 | ||
15727 | /* Look for all minimal intervals of instructions containing 4 jumps. | |
15728 | The intervals are bounded by START and INSN. NBYTES is the total | |
15729 | size of instructions in the interval including INSN and not including | |
15730 | START. When the NBYTES is smaller than 16 bytes, it is possible | |
15731 | that the end of START and INSN ends up in the same 16byte page. | |
15732 | ||
15733 | The smallest offset in the page INSN can start is the case where START | |
15734 | ends on the offset 0. Offset of INSN is then NBYTES - sizeof (INSN). | |
15735 | We add p2align to 16byte window with maxskip 17 - NBYTES + sizeof (INSN). | |
15736 | */ | |
15737 | for (insn = get_insns (); insn; insn = NEXT_INSN (insn)) | |
15738 | { | |
15739 | ||
15740 | nbytes += min_insn_size (insn); | |
c263766c RH |
15741 | if (dump_file) |
15742 | fprintf(dump_file, "Insn %i estimated to %i bytes\n", | |
d2c49530 JH |
15743 | INSN_UID (insn), min_insn_size (insn)); |
15744 | if ((GET_CODE (insn) == JUMP_INSN | |
15745 | && GET_CODE (PATTERN (insn)) != ADDR_VEC | |
15746 | && GET_CODE (PATTERN (insn)) != ADDR_DIFF_VEC) | |
15747 | || GET_CODE (insn) == CALL_INSN) | |
15748 | njumps++; | |
15749 | else | |
15750 | continue; | |
15751 | ||
15752 | while (njumps > 3) | |
15753 | { | |
15754 | start = NEXT_INSN (start); | |
15755 | if ((GET_CODE (start) == JUMP_INSN | |
15756 | && GET_CODE (PATTERN (start)) != ADDR_VEC | |
15757 | && GET_CODE (PATTERN (start)) != ADDR_DIFF_VEC) | |
15758 | || GET_CODE (start) == CALL_INSN) | |
15759 | njumps--, isjump = 1; | |
15760 | else | |
15761 | isjump = 0; | |
15762 | nbytes -= min_insn_size (start); | |
15763 | } | |
15764 | if (njumps < 0) | |
15765 | abort (); | |
c263766c RH |
15766 | if (dump_file) |
15767 | fprintf (dump_file, "Interval %i to %i has %i bytes\n", | |
d2c49530 JH |
15768 | INSN_UID (start), INSN_UID (insn), nbytes); |
15769 | ||
15770 | if (njumps == 3 && isjump && nbytes < 16) | |
15771 | { | |
15772 | int padsize = 15 - nbytes + min_insn_size (insn); | |
15773 | ||
c263766c RH |
15774 | if (dump_file) |
15775 | fprintf (dump_file, "Padding insn %i by %i bytes!\n", | |
15776 | INSN_UID (insn), padsize); | |
d2c49530 JH |
15777 | emit_insn_before (gen_align (GEN_INT (padsize)), insn); |
15778 | } | |
15779 | } | |
15780 | } | |
15781 | ||
be04394b | 15782 | /* AMD Athlon works faster |
d1f87653 | 15783 | when RET is not destination of conditional jump or directly preceded |
2a500b9e JH |
15784 | by other jump instruction. We avoid the penalty by inserting NOP just |
15785 | before the RET instructions in such cases. */ | |
18dbd950 | 15786 | static void |
be04394b | 15787 | ix86_pad_returns (void) |
2a500b9e JH |
15788 | { |
15789 | edge e; | |
15790 | ||
2a500b9e JH |
15791 | for (e = EXIT_BLOCK_PTR->pred; e; e = e->pred_next) |
15792 | { | |
15793 | basic_block bb = e->src; | |
a813c111 | 15794 | rtx ret = BB_END (bb); |
2a500b9e | 15795 | rtx prev; |
253c7a00 | 15796 | bool replace = false; |
2a500b9e | 15797 | |
253c7a00 JH |
15798 | if (GET_CODE (ret) != JUMP_INSN || GET_CODE (PATTERN (ret)) != RETURN |
15799 | || !maybe_hot_bb_p (bb)) | |
2a500b9e | 15800 | continue; |
4977bab6 ZW |
15801 | for (prev = PREV_INSN (ret); prev; prev = PREV_INSN (prev)) |
15802 | if (active_insn_p (prev) || GET_CODE (prev) == CODE_LABEL) | |
15803 | break; | |
2a500b9e JH |
15804 | if (prev && GET_CODE (prev) == CODE_LABEL) |
15805 | { | |
15806 | edge e; | |
15807 | for (e = bb->pred; e; e = e->pred_next) | |
4977bab6 | 15808 | if (EDGE_FREQUENCY (e) && e->src->index >= 0 |
2a500b9e | 15809 | && !(e->flags & EDGE_FALLTHRU)) |
253c7a00 | 15810 | replace = true; |
2a500b9e | 15811 | } |
253c7a00 | 15812 | if (!replace) |
2a500b9e | 15813 | { |
4977bab6 | 15814 | prev = prev_active_insn (ret); |
25f57a0e JH |
15815 | if (prev |
15816 | && ((GET_CODE (prev) == JUMP_INSN && any_condjump_p (prev)) | |
15817 | || GET_CODE (prev) == CALL_INSN)) | |
253c7a00 | 15818 | replace = true; |
c51e6d85 | 15819 | /* Empty functions get branch mispredict even when the jump destination |
4977bab6 ZW |
15820 | is not visible to us. */ |
15821 | if (!prev && cfun->function_frequency > FUNCTION_FREQUENCY_UNLIKELY_EXECUTED) | |
253c7a00 JH |
15822 | replace = true; |
15823 | } | |
15824 | if (replace) | |
15825 | { | |
15826 | emit_insn_before (gen_return_internal_long (), ret); | |
15827 | delete_insn (ret); | |
2a500b9e | 15828 | } |
2a500b9e | 15829 | } |
be04394b JH |
15830 | } |
15831 | ||
15832 | /* Implement machine specific optimizations. We implement padding of returns | |
15833 | for K8 CPUs and pass to avoid 4 jumps in the single 16 byte window. */ | |
15834 | static void | |
15835 | ix86_reorg (void) | |
15836 | { | |
15837 | if (TARGET_ATHLON_K8 && optimize && !optimize_size) | |
15838 | ix86_pad_returns (); | |
15839 | if (TARGET_FOUR_JUMP_LIMIT && optimize && !optimize_size) | |
15840 | ix86_avoid_jump_misspredicts (); | |
2a500b9e JH |
15841 | } |
15842 | ||
4977bab6 ZW |
15843 | /* Return nonzero when QImode register that must be represented via REX prefix |
15844 | is used. */ | |
15845 | bool | |
b96a374d | 15846 | x86_extended_QIreg_mentioned_p (rtx insn) |
4977bab6 ZW |
15847 | { |
15848 | int i; | |
15849 | extract_insn_cached (insn); | |
15850 | for (i = 0; i < recog_data.n_operands; i++) | |
15851 | if (REG_P (recog_data.operand[i]) | |
15852 | && REGNO (recog_data.operand[i]) >= 4) | |
15853 | return true; | |
15854 | return false; | |
15855 | } | |
15856 | ||
15857 | /* Return nonzero when P points to register encoded via REX prefix. | |
15858 | Called via for_each_rtx. */ | |
15859 | static int | |
b96a374d | 15860 | extended_reg_mentioned_1 (rtx *p, void *data ATTRIBUTE_UNUSED) |
4977bab6 ZW |
15861 | { |
15862 | unsigned int regno; | |
15863 | if (!REG_P (*p)) | |
15864 | return 0; | |
15865 | regno = REGNO (*p); | |
15866 | return REX_INT_REGNO_P (regno) || REX_SSE_REGNO_P (regno); | |
15867 | } | |
15868 | ||
15869 | /* Return true when INSN mentions register that must be encoded using REX | |
15870 | prefix. */ | |
15871 | bool | |
b96a374d | 15872 | x86_extended_reg_mentioned_p (rtx insn) |
4977bab6 ZW |
15873 | { |
15874 | return for_each_rtx (&PATTERN (insn), extended_reg_mentioned_1, NULL); | |
15875 | } | |
15876 | ||
1d6ba901 | 15877 | /* Generate an unsigned DImode/SImode to FP conversion. This is the same code |
8d705469 JH |
15878 | optabs would emit if we didn't have TFmode patterns. */ |
15879 | ||
15880 | void | |
b96a374d | 15881 | x86_emit_floatuns (rtx operands[2]) |
8d705469 JH |
15882 | { |
15883 | rtx neglab, donelab, i0, i1, f0, in, out; | |
1d6ba901 ZD |
15884 | enum machine_mode mode, inmode; |
15885 | ||
15886 | inmode = GET_MODE (operands[1]); | |
15887 | if (inmode != SImode | |
15888 | && inmode != DImode) | |
15889 | abort (); | |
8d705469 JH |
15890 | |
15891 | out = operands[0]; | |
1d6ba901 | 15892 | in = force_reg (inmode, operands[1]); |
8d705469 JH |
15893 | mode = GET_MODE (out); |
15894 | neglab = gen_label_rtx (); | |
15895 | donelab = gen_label_rtx (); | |
15896 | i1 = gen_reg_rtx (Pmode); | |
15897 | f0 = gen_reg_rtx (mode); | |
15898 | ||
15899 | emit_cmp_and_jump_insns (in, const0_rtx, LT, const0_rtx, Pmode, 0, neglab); | |
15900 | ||
15901 | emit_insn (gen_rtx_SET (VOIDmode, out, gen_rtx_FLOAT (mode, in))); | |
15902 | emit_jump_insn (gen_jump (donelab)); | |
15903 | emit_barrier (); | |
15904 | ||
15905 | emit_label (neglab); | |
15906 | ||
15907 | i0 = expand_simple_binop (Pmode, LSHIFTRT, in, const1_rtx, NULL, 1, OPTAB_DIRECT); | |
15908 | i1 = expand_simple_binop (Pmode, AND, in, const1_rtx, NULL, 1, OPTAB_DIRECT); | |
15909 | i0 = expand_simple_binop (Pmode, IOR, i0, i1, i0, 1, OPTAB_DIRECT); | |
15910 | expand_float (f0, i0, 0); | |
15911 | emit_insn (gen_rtx_SET (VOIDmode, out, gen_rtx_PLUS (mode, f0, f0))); | |
15912 | ||
15913 | emit_label (donelab); | |
15914 | } | |
15915 | ||
dafc5b82 JH |
15916 | /* Return if we do not know how to pass TYPE solely in registers. */ |
15917 | bool | |
b96a374d | 15918 | ix86_must_pass_in_stack (enum machine_mode mode, tree type) |
dafc5b82 JH |
15919 | { |
15920 | if (default_must_pass_in_stack (mode, type)) | |
15921 | return true; | |
15922 | return (!TARGET_64BIT && type && mode == TImode); | |
15923 | } | |
15924 | ||
997404de JH |
15925 | /* Initialize vector TARGET via VALS. */ |
15926 | void | |
15927 | ix86_expand_vector_init (rtx target, rtx vals) | |
15928 | { | |
15929 | enum machine_mode mode = GET_MODE (target); | |
15930 | int elt_size = GET_MODE_SIZE (GET_MODE_INNER (mode)); | |
15931 | int n_elts = (GET_MODE_SIZE (mode) / elt_size); | |
15932 | int i; | |
15933 | ||
15934 | for (i = n_elts - 1; i >= 0; i--) | |
15935 | if (GET_CODE (XVECEXP (vals, 0, i)) != CONST_INT | |
15936 | && GET_CODE (XVECEXP (vals, 0, i)) != CONST_DOUBLE) | |
15937 | break; | |
15938 | ||
15939 | /* Few special cases first... | |
15940 | ... constants are best loaded from constant pool. */ | |
15941 | if (i < 0) | |
15942 | { | |
15943 | emit_move_insn (target, gen_rtx_CONST_VECTOR (mode, XVEC (vals, 0))); | |
15944 | return; | |
15945 | } | |
15946 | ||
15947 | /* ... values where only first field is non-constant are best loaded | |
15948 | from the pool and overwriten via move later. */ | |
15949 | if (!i) | |
15950 | { | |
15951 | rtx op = simplify_gen_subreg (mode, XVECEXP (vals, 0, 0), | |
15952 | GET_MODE_INNER (mode), 0); | |
15953 | ||
15954 | op = force_reg (mode, op); | |
15955 | XVECEXP (vals, 0, 0) = CONST0_RTX (GET_MODE_INNER (mode)); | |
15956 | emit_move_insn (target, gen_rtx_CONST_VECTOR (mode, XVEC (vals, 0))); | |
15957 | switch (GET_MODE (target)) | |
15958 | { | |
15959 | case V2DFmode: | |
15960 | emit_insn (gen_sse2_movsd (target, target, op)); | |
15961 | break; | |
15962 | case V4SFmode: | |
15963 | emit_insn (gen_sse_movss (target, target, op)); | |
15964 | break; | |
15965 | default: | |
15966 | break; | |
15967 | } | |
15968 | return; | |
15969 | } | |
15970 | ||
15971 | /* And the busy sequence doing rotations. */ | |
15972 | switch (GET_MODE (target)) | |
15973 | { | |
15974 | case V2DFmode: | |
15975 | { | |
15976 | rtx vecop0 = | |
15977 | simplify_gen_subreg (V2DFmode, XVECEXP (vals, 0, 0), DFmode, 0); | |
15978 | rtx vecop1 = | |
15979 | simplify_gen_subreg (V2DFmode, XVECEXP (vals, 0, 1), DFmode, 0); | |
15980 | ||
15981 | vecop0 = force_reg (V2DFmode, vecop0); | |
15982 | vecop1 = force_reg (V2DFmode, vecop1); | |
15983 | emit_insn (gen_sse2_unpcklpd (target, vecop0, vecop1)); | |
15984 | } | |
15985 | break; | |
15986 | case V4SFmode: | |
15987 | { | |
15988 | rtx vecop0 = | |
15989 | simplify_gen_subreg (V4SFmode, XVECEXP (vals, 0, 0), SFmode, 0); | |
15990 | rtx vecop1 = | |
15991 | simplify_gen_subreg (V4SFmode, XVECEXP (vals, 0, 1), SFmode, 0); | |
15992 | rtx vecop2 = | |
15993 | simplify_gen_subreg (V4SFmode, XVECEXP (vals, 0, 2), SFmode, 0); | |
15994 | rtx vecop3 = | |
15995 | simplify_gen_subreg (V4SFmode, XVECEXP (vals, 0, 3), SFmode, 0); | |
15996 | rtx tmp1 = gen_reg_rtx (V4SFmode); | |
15997 | rtx tmp2 = gen_reg_rtx (V4SFmode); | |
15998 | ||
15999 | vecop0 = force_reg (V4SFmode, vecop0); | |
16000 | vecop1 = force_reg (V4SFmode, vecop1); | |
16001 | vecop2 = force_reg (V4SFmode, vecop2); | |
16002 | vecop3 = force_reg (V4SFmode, vecop3); | |
16003 | emit_insn (gen_sse_unpcklps (tmp1, vecop1, vecop3)); | |
16004 | emit_insn (gen_sse_unpcklps (tmp2, vecop0, vecop2)); | |
16005 | emit_insn (gen_sse_unpcklps (target, tmp2, tmp1)); | |
16006 | } | |
16007 | break; | |
16008 | default: | |
16009 | abort (); | |
16010 | } | |
16011 | } | |
16012 | ||
e2500fed | 16013 | #include "gt-i386.h" |