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e075ae69 | 1 | /* Subroutines used for code generation on IA-32. |
07933f72 GS |
2 | Copyright (C) 1988, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, |
3 | 2002 Free Software Foundation, Inc. | |
2a2ab3f9 JVA |
4 | |
5 | This file is part of GNU CC. | |
6 | ||
7 | GNU CC is free software; you can redistribute it and/or modify | |
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 | ||
12 | GNU CC is distributed in the hope that it will be useful, | |
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 | |
18 | along with GNU CC; 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" |
2a2ab3f9 | 24 | #include "rtl.h" |
6baf1cc8 BS |
25 | #include "tree.h" |
26 | #include "tm_p.h" | |
2a2ab3f9 JVA |
27 | #include "regs.h" |
28 | #include "hard-reg-set.h" | |
29 | #include "real.h" | |
30 | #include "insn-config.h" | |
31 | #include "conditions.h" | |
2a2ab3f9 JVA |
32 | #include "output.h" |
33 | #include "insn-attr.h" | |
2a2ab3f9 | 34 | #include "flags.h" |
a8ffcc81 | 35 | #include "except.h" |
ecbc4695 | 36 | #include "function.h" |
00c79232 | 37 | #include "recog.h" |
ced8dd8c | 38 | #include "expr.h" |
e78d8e51 | 39 | #include "optabs.h" |
f103890b | 40 | #include "toplev.h" |
e075ae69 | 41 | #include "basic-block.h" |
1526a060 | 42 | #include "ggc.h" |
672a6f42 NB |
43 | #include "target.h" |
44 | #include "target-def.h" | |
f1e639b1 | 45 | #include "langhooks.h" |
2a2ab3f9 | 46 | |
8dfe5673 | 47 | #ifndef CHECK_STACK_LIMIT |
07933f72 | 48 | #define CHECK_STACK_LIMIT (-1) |
8dfe5673 RK |
49 | #endif |
50 | ||
2ab0437e | 51 | /* Processor costs (relative to an add) */ |
fce5a9f2 | 52 | static const |
2ab0437e JH |
53 | struct processor_costs size_cost = { /* costs for tunning for size */ |
54 | 2, /* cost of an add instruction */ | |
55 | 3, /* cost of a lea instruction */ | |
56 | 2, /* variable shift costs */ | |
57 | 3, /* constant shift costs */ | |
58 | 3, /* cost of starting a multiply */ | |
59 | 0, /* cost of multiply per each bit set */ | |
60 | 3, /* cost of a divide/mod */ | |
44cf5b6a JH |
61 | 3, /* cost of movsx */ |
62 | 3, /* cost of movzx */ | |
2ab0437e JH |
63 | 0, /* "large" insn */ |
64 | 2, /* MOVE_RATIO */ | |
65 | 2, /* cost for loading QImode using movzbl */ | |
66 | {2, 2, 2}, /* cost of loading integer registers | |
67 | in QImode, HImode and SImode. | |
68 | Relative to reg-reg move (2). */ | |
69 | {2, 2, 2}, /* cost of storing integer registers */ | |
70 | 2, /* cost of reg,reg fld/fst */ | |
71 | {2, 2, 2}, /* cost of loading fp registers | |
72 | in SFmode, DFmode and XFmode */ | |
73 | {2, 2, 2}, /* cost of loading integer registers */ | |
74 | 3, /* cost of moving MMX register */ | |
75 | {3, 3}, /* cost of loading MMX registers | |
76 | in SImode and DImode */ | |
77 | {3, 3}, /* cost of storing MMX registers | |
78 | in SImode and DImode */ | |
79 | 3, /* cost of moving SSE register */ | |
80 | {3, 3, 3}, /* cost of loading SSE registers | |
81 | in SImode, DImode and TImode */ | |
82 | {3, 3, 3}, /* cost of storing SSE registers | |
83 | in SImode, DImode and TImode */ | |
84 | 3, /* MMX or SSE register to integer */ | |
f4365627 JH |
85 | 0, /* size of prefetch block */ |
86 | 0, /* number of parallel prefetches */ | |
229b303a RS |
87 | 2, /* cost of FADD and FSUB insns. */ |
88 | 2, /* cost of FMUL instruction. */ | |
89 | 2, /* cost of FDIV instruction. */ | |
90 | 2, /* cost of FABS instruction. */ | |
91 | 2, /* cost of FCHS instruction. */ | |
92 | 2, /* cost of FSQRT instruction. */ | |
2ab0437e | 93 | }; |
229b303a | 94 | |
32b5b1aa | 95 | /* Processor costs (relative to an add) */ |
fce5a9f2 | 96 | static const |
32b5b1aa | 97 | struct processor_costs i386_cost = { /* 386 specific costs */ |
e9a25f70 | 98 | 1, /* cost of an add instruction */ |
32b5b1aa SC |
99 | 1, /* cost of a lea instruction */ |
100 | 3, /* variable shift costs */ | |
101 | 2, /* constant shift costs */ | |
102 | 6, /* cost of starting a multiply */ | |
103 | 1, /* cost of multiply per each bit set */ | |
e075ae69 | 104 | 23, /* cost of a divide/mod */ |
44cf5b6a JH |
105 | 3, /* cost of movsx */ |
106 | 2, /* cost of movzx */ | |
96e7ae40 | 107 | 15, /* "large" insn */ |
e2e52e1b | 108 | 3, /* MOVE_RATIO */ |
7c6b971d | 109 | 4, /* cost for loading QImode using movzbl */ |
96e7ae40 JH |
110 | {2, 4, 2}, /* cost of loading integer registers |
111 | in QImode, HImode and SImode. | |
0f290768 | 112 | Relative to reg-reg move (2). */ |
96e7ae40 JH |
113 | {2, 4, 2}, /* cost of storing integer registers */ |
114 | 2, /* cost of reg,reg fld/fst */ | |
115 | {8, 8, 8}, /* cost of loading fp registers | |
116 | in SFmode, DFmode and XFmode */ | |
fa79946e JH |
117 | {8, 8, 8}, /* cost of loading integer registers */ |
118 | 2, /* cost of moving MMX register */ | |
119 | {4, 8}, /* cost of loading MMX registers | |
120 | in SImode and DImode */ | |
121 | {4, 8}, /* cost of storing MMX registers | |
122 | in SImode and DImode */ | |
123 | 2, /* cost of moving SSE register */ | |
124 | {4, 8, 16}, /* cost of loading SSE registers | |
125 | in SImode, DImode and TImode */ | |
126 | {4, 8, 16}, /* cost of storing SSE registers | |
127 | in SImode, DImode and TImode */ | |
128 | 3, /* MMX or SSE register to integer */ | |
f4365627 JH |
129 | 0, /* size of prefetch block */ |
130 | 0, /* number of parallel prefetches */ | |
229b303a RS |
131 | 23, /* cost of FADD and FSUB insns. */ |
132 | 27, /* cost of FMUL instruction. */ | |
133 | 88, /* cost of FDIV instruction. */ | |
134 | 22, /* cost of FABS instruction. */ | |
135 | 24, /* cost of FCHS instruction. */ | |
136 | 122, /* cost of FSQRT instruction. */ | |
32b5b1aa SC |
137 | }; |
138 | ||
fce5a9f2 | 139 | static const |
32b5b1aa SC |
140 | struct processor_costs i486_cost = { /* 486 specific costs */ |
141 | 1, /* cost of an add instruction */ | |
142 | 1, /* cost of a lea instruction */ | |
143 | 3, /* variable shift costs */ | |
144 | 2, /* constant shift costs */ | |
145 | 12, /* cost of starting a multiply */ | |
146 | 1, /* cost of multiply per each bit set */ | |
e075ae69 | 147 | 40, /* cost of a divide/mod */ |
44cf5b6a JH |
148 | 3, /* cost of movsx */ |
149 | 2, /* cost of movzx */ | |
96e7ae40 | 150 | 15, /* "large" insn */ |
e2e52e1b | 151 | 3, /* MOVE_RATIO */ |
7c6b971d | 152 | 4, /* cost for loading QImode using movzbl */ |
96e7ae40 JH |
153 | {2, 4, 2}, /* cost of loading integer registers |
154 | in QImode, HImode and SImode. | |
0f290768 | 155 | Relative to reg-reg move (2). */ |
96e7ae40 JH |
156 | {2, 4, 2}, /* cost of storing integer registers */ |
157 | 2, /* cost of reg,reg fld/fst */ | |
158 | {8, 8, 8}, /* cost of loading fp registers | |
159 | in SFmode, DFmode and XFmode */ | |
fa79946e JH |
160 | {8, 8, 8}, /* cost of loading integer registers */ |
161 | 2, /* cost of moving MMX register */ | |
162 | {4, 8}, /* cost of loading MMX registers | |
163 | in SImode and DImode */ | |
164 | {4, 8}, /* cost of storing MMX registers | |
165 | in SImode and DImode */ | |
166 | 2, /* cost of moving SSE register */ | |
167 | {4, 8, 16}, /* cost of loading SSE registers | |
168 | in SImode, DImode and TImode */ | |
169 | {4, 8, 16}, /* cost of storing SSE registers | |
170 | in SImode, DImode and TImode */ | |
f4365627 JH |
171 | 3, /* MMX or SSE register to integer */ |
172 | 0, /* size of prefetch block */ | |
173 | 0, /* number of parallel prefetches */ | |
229b303a RS |
174 | 8, /* cost of FADD and FSUB insns. */ |
175 | 16, /* cost of FMUL instruction. */ | |
176 | 73, /* cost of FDIV instruction. */ | |
177 | 3, /* cost of FABS instruction. */ | |
178 | 3, /* cost of FCHS instruction. */ | |
179 | 83, /* cost of FSQRT instruction. */ | |
32b5b1aa SC |
180 | }; |
181 | ||
fce5a9f2 | 182 | static const |
e5cb57e8 | 183 | struct processor_costs pentium_cost = { |
32b5b1aa SC |
184 | 1, /* cost of an add instruction */ |
185 | 1, /* cost of a lea instruction */ | |
856b07a1 | 186 | 4, /* variable shift costs */ |
e5cb57e8 | 187 | 1, /* constant shift costs */ |
856b07a1 SC |
188 | 11, /* cost of starting a multiply */ |
189 | 0, /* cost of multiply per each bit set */ | |
e075ae69 | 190 | 25, /* cost of a divide/mod */ |
44cf5b6a JH |
191 | 3, /* cost of movsx */ |
192 | 2, /* cost of movzx */ | |
96e7ae40 | 193 | 8, /* "large" insn */ |
e2e52e1b | 194 | 6, /* MOVE_RATIO */ |
7c6b971d | 195 | 6, /* cost for loading QImode using movzbl */ |
96e7ae40 JH |
196 | {2, 4, 2}, /* cost of loading integer registers |
197 | in QImode, HImode and SImode. | |
0f290768 | 198 | Relative to reg-reg move (2). */ |
96e7ae40 JH |
199 | {2, 4, 2}, /* cost of storing integer registers */ |
200 | 2, /* cost of reg,reg fld/fst */ | |
201 | {2, 2, 6}, /* cost of loading fp registers | |
202 | in SFmode, DFmode and XFmode */ | |
fa79946e JH |
203 | {4, 4, 6}, /* cost of loading integer registers */ |
204 | 8, /* cost of moving MMX register */ | |
205 | {8, 8}, /* cost of loading MMX registers | |
206 | in SImode and DImode */ | |
207 | {8, 8}, /* cost of storing MMX registers | |
208 | in SImode and DImode */ | |
209 | 2, /* cost of moving SSE register */ | |
210 | {4, 8, 16}, /* cost of loading SSE registers | |
211 | in SImode, DImode and TImode */ | |
212 | {4, 8, 16}, /* cost of storing SSE registers | |
213 | in SImode, DImode and TImode */ | |
f4365627 JH |
214 | 3, /* MMX or SSE register to integer */ |
215 | 0, /* size of prefetch block */ | |
216 | 0, /* number of parallel prefetches */ | |
229b303a RS |
217 | 3, /* cost of FADD and FSUB insns. */ |
218 | 3, /* cost of FMUL instruction. */ | |
219 | 39, /* cost of FDIV instruction. */ | |
220 | 1, /* cost of FABS instruction. */ | |
221 | 1, /* cost of FCHS instruction. */ | |
222 | 70, /* cost of FSQRT instruction. */ | |
32b5b1aa SC |
223 | }; |
224 | ||
fce5a9f2 | 225 | static const |
856b07a1 SC |
226 | struct processor_costs pentiumpro_cost = { |
227 | 1, /* cost of an add instruction */ | |
228 | 1, /* cost of a lea instruction */ | |
e075ae69 | 229 | 1, /* variable shift costs */ |
856b07a1 | 230 | 1, /* constant shift costs */ |
369e59b1 | 231 | 4, /* cost of starting a multiply */ |
856b07a1 | 232 | 0, /* cost of multiply per each bit set */ |
e075ae69 | 233 | 17, /* cost of a divide/mod */ |
44cf5b6a JH |
234 | 1, /* cost of movsx */ |
235 | 1, /* cost of movzx */ | |
96e7ae40 | 236 | 8, /* "large" insn */ |
e2e52e1b | 237 | 6, /* MOVE_RATIO */ |
7c6b971d | 238 | 2, /* cost for loading QImode using movzbl */ |
96e7ae40 JH |
239 | {4, 4, 4}, /* cost of loading integer registers |
240 | in QImode, HImode and SImode. | |
0f290768 | 241 | Relative to reg-reg move (2). */ |
96e7ae40 JH |
242 | {2, 2, 2}, /* cost of storing integer registers */ |
243 | 2, /* cost of reg,reg fld/fst */ | |
244 | {2, 2, 6}, /* cost of loading fp registers | |
245 | in SFmode, DFmode and XFmode */ | |
fa79946e JH |
246 | {4, 4, 6}, /* cost of loading integer registers */ |
247 | 2, /* cost of moving MMX register */ | |
248 | {2, 2}, /* cost of loading MMX registers | |
249 | in SImode and DImode */ | |
250 | {2, 2}, /* cost of storing MMX registers | |
251 | in SImode and DImode */ | |
252 | 2, /* cost of moving SSE register */ | |
253 | {2, 2, 8}, /* cost of loading SSE registers | |
254 | in SImode, DImode and TImode */ | |
255 | {2, 2, 8}, /* cost of storing SSE registers | |
256 | in SImode, DImode and TImode */ | |
f4365627 JH |
257 | 3, /* MMX or SSE register to integer */ |
258 | 32, /* size of prefetch block */ | |
259 | 6, /* number of parallel prefetches */ | |
229b303a RS |
260 | 3, /* cost of FADD and FSUB insns. */ |
261 | 5, /* cost of FMUL instruction. */ | |
262 | 56, /* cost of FDIV instruction. */ | |
263 | 2, /* cost of FABS instruction. */ | |
264 | 2, /* cost of FCHS instruction. */ | |
265 | 56, /* cost of FSQRT instruction. */ | |
856b07a1 SC |
266 | }; |
267 | ||
fce5a9f2 | 268 | static const |
a269a03c JC |
269 | struct processor_costs k6_cost = { |
270 | 1, /* cost of an add instruction */ | |
e075ae69 | 271 | 2, /* cost of a lea instruction */ |
a269a03c JC |
272 | 1, /* variable shift costs */ |
273 | 1, /* constant shift costs */ | |
73fe76e4 | 274 | 3, /* cost of starting a multiply */ |
a269a03c | 275 | 0, /* cost of multiply per each bit set */ |
e075ae69 | 276 | 18, /* cost of a divide/mod */ |
44cf5b6a JH |
277 | 2, /* cost of movsx */ |
278 | 2, /* cost of movzx */ | |
96e7ae40 | 279 | 8, /* "large" insn */ |
e2e52e1b | 280 | 4, /* MOVE_RATIO */ |
7c6b971d | 281 | 3, /* cost for loading QImode using movzbl */ |
96e7ae40 JH |
282 | {4, 5, 4}, /* cost of loading integer registers |
283 | in QImode, HImode and SImode. | |
0f290768 | 284 | Relative to reg-reg move (2). */ |
96e7ae40 JH |
285 | {2, 3, 2}, /* cost of storing integer registers */ |
286 | 4, /* cost of reg,reg fld/fst */ | |
287 | {6, 6, 6}, /* cost of loading fp registers | |
288 | in SFmode, DFmode and XFmode */ | |
fa79946e JH |
289 | {4, 4, 4}, /* cost of loading integer registers */ |
290 | 2, /* cost of moving MMX register */ | |
291 | {2, 2}, /* cost of loading MMX registers | |
292 | in SImode and DImode */ | |
293 | {2, 2}, /* cost of storing MMX registers | |
294 | in SImode and DImode */ | |
295 | 2, /* cost of moving SSE register */ | |
296 | {2, 2, 8}, /* cost of loading SSE registers | |
297 | in SImode, DImode and TImode */ | |
298 | {2, 2, 8}, /* cost of storing SSE registers | |
299 | in SImode, DImode and TImode */ | |
f4365627 JH |
300 | 6, /* MMX or SSE register to integer */ |
301 | 32, /* size of prefetch block */ | |
302 | 1, /* number of parallel prefetches */ | |
229b303a RS |
303 | 2, /* cost of FADD and FSUB insns. */ |
304 | 2, /* cost of FMUL instruction. */ | |
4f770e7b RS |
305 | 56, /* cost of FDIV instruction. */ |
306 | 2, /* cost of FABS instruction. */ | |
229b303a RS |
307 | 2, /* cost of FCHS instruction. */ |
308 | 56, /* cost of FSQRT instruction. */ | |
a269a03c JC |
309 | }; |
310 | ||
fce5a9f2 | 311 | static const |
309ada50 JH |
312 | struct processor_costs athlon_cost = { |
313 | 1, /* cost of an add instruction */ | |
0b5107cf | 314 | 2, /* cost of a lea instruction */ |
309ada50 JH |
315 | 1, /* variable shift costs */ |
316 | 1, /* constant shift costs */ | |
317 | 5, /* cost of starting a multiply */ | |
318 | 0, /* cost of multiply per each bit set */ | |
0b5107cf | 319 | 42, /* cost of a divide/mod */ |
44cf5b6a JH |
320 | 1, /* cost of movsx */ |
321 | 1, /* cost of movzx */ | |
309ada50 | 322 | 8, /* "large" insn */ |
e2e52e1b | 323 | 9, /* MOVE_RATIO */ |
309ada50 | 324 | 4, /* cost for loading QImode using movzbl */ |
b72b1c29 | 325 | {3, 4, 3}, /* cost of loading integer registers |
309ada50 | 326 | in QImode, HImode and SImode. |
0f290768 | 327 | Relative to reg-reg move (2). */ |
b72b1c29 | 328 | {3, 4, 3}, /* cost of storing integer registers */ |
309ada50 | 329 | 4, /* cost of reg,reg fld/fst */ |
b72b1c29 | 330 | {4, 4, 12}, /* cost of loading fp registers |
309ada50 | 331 | in SFmode, DFmode and XFmode */ |
b72b1c29 | 332 | {6, 6, 8}, /* cost of loading integer registers */ |
fa79946e | 333 | 2, /* cost of moving MMX register */ |
b72b1c29 | 334 | {4, 4}, /* cost of loading MMX registers |
fa79946e | 335 | in SImode and DImode */ |
b72b1c29 | 336 | {4, 4}, /* cost of storing MMX registers |
fa79946e JH |
337 | in SImode and DImode */ |
338 | 2, /* cost of moving SSE register */ | |
b72b1c29 | 339 | {4, 4, 6}, /* cost of loading SSE registers |
fa79946e | 340 | in SImode, DImode and TImode */ |
b72b1c29 | 341 | {4, 4, 5}, /* cost of storing SSE registers |
fa79946e | 342 | in SImode, DImode and TImode */ |
b72b1c29 | 343 | 5, /* MMX or SSE register to integer */ |
f4365627 JH |
344 | 64, /* size of prefetch block */ |
345 | 6, /* number of parallel prefetches */ | |
229b303a RS |
346 | 4, /* cost of FADD and FSUB insns. */ |
347 | 4, /* cost of FMUL instruction. */ | |
348 | 24, /* cost of FDIV instruction. */ | |
349 | 2, /* cost of FABS instruction. */ | |
350 | 2, /* cost of FCHS instruction. */ | |
351 | 35, /* cost of FSQRT instruction. */ | |
309ada50 JH |
352 | }; |
353 | ||
fce5a9f2 | 354 | static const |
b4e89e2d JH |
355 | struct processor_costs pentium4_cost = { |
356 | 1, /* cost of an add instruction */ | |
357 | 1, /* cost of a lea instruction */ | |
358 | 8, /* variable shift costs */ | |
359 | 8, /* constant shift costs */ | |
360 | 30, /* cost of starting a multiply */ | |
361 | 0, /* cost of multiply per each bit set */ | |
362 | 112, /* cost of a divide/mod */ | |
44cf5b6a JH |
363 | 1, /* cost of movsx */ |
364 | 1, /* cost of movzx */ | |
b4e89e2d JH |
365 | 16, /* "large" insn */ |
366 | 6, /* MOVE_RATIO */ | |
367 | 2, /* cost for loading QImode using movzbl */ | |
368 | {4, 5, 4}, /* cost of loading integer registers | |
369 | in QImode, HImode and SImode. | |
370 | Relative to reg-reg move (2). */ | |
371 | {2, 3, 2}, /* cost of storing integer registers */ | |
372 | 2, /* cost of reg,reg fld/fst */ | |
373 | {2, 2, 6}, /* cost of loading fp registers | |
374 | in SFmode, DFmode and XFmode */ | |
375 | {4, 4, 6}, /* cost of loading integer registers */ | |
376 | 2, /* cost of moving MMX register */ | |
377 | {2, 2}, /* cost of loading MMX registers | |
378 | in SImode and DImode */ | |
379 | {2, 2}, /* cost of storing MMX registers | |
380 | in SImode and DImode */ | |
381 | 12, /* cost of moving SSE register */ | |
382 | {12, 12, 12}, /* cost of loading SSE registers | |
383 | in SImode, DImode and TImode */ | |
384 | {2, 2, 8}, /* cost of storing SSE registers | |
385 | in SImode, DImode and TImode */ | |
386 | 10, /* MMX or SSE register to integer */ | |
f4365627 JH |
387 | 64, /* size of prefetch block */ |
388 | 6, /* number of parallel prefetches */ | |
229b303a RS |
389 | 5, /* cost of FADD and FSUB insns. */ |
390 | 7, /* cost of FMUL instruction. */ | |
391 | 43, /* cost of FDIV instruction. */ | |
392 | 2, /* cost of FABS instruction. */ | |
393 | 2, /* cost of FCHS instruction. */ | |
394 | 43, /* cost of FSQRT instruction. */ | |
b4e89e2d JH |
395 | }; |
396 | ||
8b60264b | 397 | const struct processor_costs *ix86_cost = &pentium_cost; |
32b5b1aa | 398 | |
a269a03c JC |
399 | /* Processor feature/optimization bitmasks. */ |
400 | #define m_386 (1<<PROCESSOR_I386) | |
401 | #define m_486 (1<<PROCESSOR_I486) | |
402 | #define m_PENT (1<<PROCESSOR_PENTIUM) | |
403 | #define m_PPRO (1<<PROCESSOR_PENTIUMPRO) | |
404 | #define m_K6 (1<<PROCESSOR_K6) | |
309ada50 | 405 | #define m_ATHLON (1<<PROCESSOR_ATHLON) |
b4e89e2d | 406 | #define m_PENT4 (1<<PROCESSOR_PENTIUM4) |
a269a03c | 407 | |
309ada50 | 408 | const int x86_use_leave = m_386 | m_K6 | m_ATHLON; |
b4e89e2d | 409 | const int x86_push_memory = m_386 | m_K6 | m_ATHLON | m_PENT4; |
a269a03c | 410 | const int x86_zero_extend_with_and = m_486 | m_PENT; |
b4e89e2d | 411 | const int x86_movx = m_ATHLON | m_PPRO | m_PENT4 /* m_386 | m_K6 */; |
e075ae69 | 412 | const int x86_double_with_add = ~m_386; |
a269a03c | 413 | const int x86_use_bit_test = m_386; |
e2e52e1b | 414 | const int x86_unroll_strlen = m_486 | m_PENT | m_PPRO | m_ATHLON | m_K6; |
b4e89e2d | 415 | const int x86_cmove = m_PPRO | m_ATHLON | m_PENT4; |
47f339cf | 416 | const int x86_3dnow_a = m_ATHLON; |
b4e89e2d | 417 | const int x86_deep_branch = m_PPRO | m_K6 | m_ATHLON | m_PENT4; |
ef6257cd | 418 | const int x86_branch_hints = m_PENT4; |
b4e89e2d | 419 | const int x86_use_sahf = m_PPRO | m_K6 | m_PENT4; |
e075ae69 RH |
420 | const int x86_partial_reg_stall = m_PPRO; |
421 | const int x86_use_loop = m_K6; | |
309ada50 | 422 | const int x86_use_fiop = ~(m_PPRO | m_ATHLON | m_PENT); |
e075ae69 RH |
423 | const int x86_use_mov0 = m_K6; |
424 | const int x86_use_cltd = ~(m_PENT | m_K6); | |
425 | const int x86_read_modify_write = ~m_PENT; | |
426 | const int x86_read_modify = ~(m_PENT | m_PPRO); | |
427 | const int x86_split_long_moves = m_PPRO; | |
285464d0 JH |
428 | const int x86_promote_QImode = m_K6 | m_PENT | m_386 | m_486 | m_ATHLON; |
429 | const int x86_fast_prefix = ~(m_PENT | m_486 | m_386); | |
b4e89e2d | 430 | const int x86_single_stringop = m_386 | m_PENT4; |
d9f32422 JH |
431 | const int x86_qimode_math = ~(0); |
432 | const int x86_promote_qi_regs = 0; | |
433 | const int x86_himode_math = ~(m_PPRO); | |
434 | const int x86_promote_hi_regs = m_PPRO; | |
b4e89e2d JH |
435 | const int x86_sub_esp_4 = m_ATHLON | m_PPRO | m_PENT4; |
436 | const int x86_sub_esp_8 = m_ATHLON | m_PPRO | m_386 | m_486 | m_PENT4; | |
437 | const int x86_add_esp_4 = m_ATHLON | m_K6 | m_PENT4; | |
438 | const int x86_add_esp_8 = m_ATHLON | m_PPRO | m_K6 | m_386 | m_486 | m_PENT4; | |
77966be3 | 439 | const int x86_integer_DFmode_moves = ~(m_ATHLON | m_PENT4 | m_PPRO); |
b4e89e2d JH |
440 | const int x86_partial_reg_dependency = m_ATHLON | m_PENT4; |
441 | const int x86_memory_mismatch_stall = m_ATHLON | m_PENT4; | |
c6036a37 JH |
442 | const int x86_accumulate_outgoing_args = m_ATHLON | m_PENT4 | m_PPRO; |
443 | const int x86_prologue_using_move = m_ATHLON | m_PENT4 | m_PPRO; | |
444 | const int x86_epilogue_using_move = m_ATHLON | m_PENT4 | m_PPRO; | |
b972dd02 | 445 | const int x86_decompose_lea = m_PENT4; |
495333a6 | 446 | const int x86_shift1 = ~m_486; |
285464d0 | 447 | const int x86_arch_always_fancy_math_387 = m_PENT | m_PPRO | m_ATHLON | m_PENT4; |
a269a03c | 448 | |
6ab16dd9 JH |
449 | /* In case the avreage insn count for single function invocation is |
450 | lower than this constant, emit fast (but longer) prologue and | |
451 | epilogue code. */ | |
452 | #define FAST_PROLOGUE_INSN_COUNT 30 | |
5bf0ebab | 453 | |
6ab16dd9 JH |
454 | /* Set by prologue expander and used by epilogue expander to determine |
455 | the style used. */ | |
456 | static int use_fast_prologue_epilogue; | |
457 | ||
5bf0ebab RH |
458 | /* Names for 8 (low), 8 (high), and 16-bit registers, respectively. */ |
459 | static const char *const qi_reg_name[] = QI_REGISTER_NAMES; | |
460 | static const char *const qi_high_reg_name[] = QI_HIGH_REGISTER_NAMES; | |
461 | static const char *const hi_reg_name[] = HI_REGISTER_NAMES; | |
4c0d89b5 RS |
462 | |
463 | /* Array of the smallest class containing reg number REGNO, indexed by | |
0f290768 | 464 | REGNO. Used by REGNO_REG_CLASS in i386.h. */ |
4c0d89b5 | 465 | |
e075ae69 | 466 | enum reg_class const regclass_map[FIRST_PSEUDO_REGISTER] = |
4c0d89b5 RS |
467 | { |
468 | /* ax, dx, cx, bx */ | |
ab408a86 | 469 | AREG, DREG, CREG, BREG, |
4c0d89b5 | 470 | /* si, di, bp, sp */ |
e075ae69 | 471 | SIREG, DIREG, NON_Q_REGS, NON_Q_REGS, |
4c0d89b5 RS |
472 | /* FP registers */ |
473 | FP_TOP_REG, FP_SECOND_REG, FLOAT_REGS, FLOAT_REGS, | |
79325812 | 474 | FLOAT_REGS, FLOAT_REGS, FLOAT_REGS, FLOAT_REGS, |
4c0d89b5 | 475 | /* arg pointer */ |
83774849 | 476 | NON_Q_REGS, |
564d80f4 | 477 | /* flags, fpsr, dirflag, frame */ |
a7180f70 BS |
478 | NO_REGS, NO_REGS, NO_REGS, NON_Q_REGS, |
479 | SSE_REGS, SSE_REGS, SSE_REGS, SSE_REGS, SSE_REGS, SSE_REGS, | |
480 | SSE_REGS, SSE_REGS, | |
481 | MMX_REGS, MMX_REGS, MMX_REGS, MMX_REGS, MMX_REGS, MMX_REGS, | |
3d117b30 JH |
482 | MMX_REGS, MMX_REGS, |
483 | NON_Q_REGS, NON_Q_REGS, NON_Q_REGS, NON_Q_REGS, | |
484 | NON_Q_REGS, NON_Q_REGS, NON_Q_REGS, NON_Q_REGS, | |
485 | SSE_REGS, SSE_REGS, SSE_REGS, SSE_REGS, SSE_REGS, SSE_REGS, | |
486 | SSE_REGS, SSE_REGS, | |
4c0d89b5 | 487 | }; |
c572e5ba | 488 | |
3d117b30 | 489 | /* The "default" register map used in 32bit mode. */ |
83774849 | 490 | |
0f290768 | 491 | int const dbx_register_map[FIRST_PSEUDO_REGISTER] = |
83774849 RH |
492 | { |
493 | 0, 2, 1, 3, 6, 7, 4, 5, /* general regs */ | |
494 | 12, 13, 14, 15, 16, 17, 18, 19, /* fp regs */ | |
3d117b30 | 495 | -1, -1, -1, -1, -1, /* arg, flags, fpsr, dir, frame */ |
a7180f70 BS |
496 | 21, 22, 23, 24, 25, 26, 27, 28, /* SSE */ |
497 | 29, 30, 31, 32, 33, 34, 35, 36, /* MMX */ | |
3d117b30 JH |
498 | -1, -1, -1, -1, -1, -1, -1, -1, /* extended integer registers */ |
499 | -1, -1, -1, -1, -1, -1, -1, -1, /* extended SSE registers */ | |
83774849 RH |
500 | }; |
501 | ||
5bf0ebab RH |
502 | static int const x86_64_int_parameter_registers[6] = |
503 | { | |
504 | 5 /*RDI*/, 4 /*RSI*/, 1 /*RDX*/, 2 /*RCX*/, | |
505 | FIRST_REX_INT_REG /*R8 */, FIRST_REX_INT_REG + 1 /*R9 */ | |
506 | }; | |
507 | ||
508 | static int const x86_64_int_return_registers[4] = | |
509 | { | |
510 | 0 /*RAX*/, 1 /*RDI*/, 5 /*RDI*/, 4 /*RSI*/ | |
511 | }; | |
53c17031 | 512 | |
0f7fa3d0 JH |
513 | /* The "default" register map used in 64bit mode. */ |
514 | int const dbx64_register_map[FIRST_PSEUDO_REGISTER] = | |
515 | { | |
516 | 0, 1, 2, 3, 4, 5, 6, 7, /* general regs */ | |
3de72741 | 517 | 33, 34, 35, 36, 37, 38, 39, 40, /* fp regs */ |
0f7fa3d0 JH |
518 | -1, -1, -1, -1, -1, /* arg, flags, fpsr, dir, frame */ |
519 | 17, 18, 19, 20, 21, 22, 23, 24, /* SSE */ | |
520 | 41, 42, 43, 44, 45, 46, 47, 48, /* MMX */ | |
521 | 8,9,10,11,12,13,14,15, /* extended integer registers */ | |
522 | 25, 26, 27, 28, 29, 30, 31, 32, /* extended SSE registers */ | |
523 | }; | |
524 | ||
83774849 RH |
525 | /* Define the register numbers to be used in Dwarf debugging information. |
526 | The SVR4 reference port C compiler uses the following register numbers | |
527 | in its Dwarf output code: | |
528 | 0 for %eax (gcc regno = 0) | |
529 | 1 for %ecx (gcc regno = 2) | |
530 | 2 for %edx (gcc regno = 1) | |
531 | 3 for %ebx (gcc regno = 3) | |
532 | 4 for %esp (gcc regno = 7) | |
533 | 5 for %ebp (gcc regno = 6) | |
534 | 6 for %esi (gcc regno = 4) | |
535 | 7 for %edi (gcc regno = 5) | |
536 | The following three DWARF register numbers are never generated by | |
537 | the SVR4 C compiler or by the GNU compilers, but SDB on x86/svr4 | |
538 | believes these numbers have these meanings. | |
539 | 8 for %eip (no gcc equivalent) | |
540 | 9 for %eflags (gcc regno = 17) | |
541 | 10 for %trapno (no gcc equivalent) | |
542 | It is not at all clear how we should number the FP stack registers | |
543 | for the x86 architecture. If the version of SDB on x86/svr4 were | |
544 | a bit less brain dead with respect to floating-point then we would | |
545 | have a precedent to follow with respect to DWARF register numbers | |
546 | for x86 FP registers, but the SDB on x86/svr4 is so completely | |
547 | broken with respect to FP registers that it is hardly worth thinking | |
548 | of it as something to strive for compatibility with. | |
549 | The version of x86/svr4 SDB I have at the moment does (partially) | |
550 | seem to believe that DWARF register number 11 is associated with | |
551 | the x86 register %st(0), but that's about all. Higher DWARF | |
552 | register numbers don't seem to be associated with anything in | |
553 | particular, and even for DWARF regno 11, SDB only seems to under- | |
554 | stand that it should say that a variable lives in %st(0) (when | |
555 | asked via an `=' command) if we said it was in DWARF regno 11, | |
556 | but SDB still prints garbage when asked for the value of the | |
557 | variable in question (via a `/' command). | |
558 | (Also note that the labels SDB prints for various FP stack regs | |
559 | when doing an `x' command are all wrong.) | |
560 | Note that these problems generally don't affect the native SVR4 | |
561 | C compiler because it doesn't allow the use of -O with -g and | |
562 | because when it is *not* optimizing, it allocates a memory | |
563 | location for each floating-point variable, and the memory | |
564 | location is what gets described in the DWARF AT_location | |
565 | attribute for the variable in question. | |
566 | Regardless of the severe mental illness of the x86/svr4 SDB, we | |
567 | do something sensible here and we use the following DWARF | |
568 | register numbers. Note that these are all stack-top-relative | |
569 | numbers. | |
570 | 11 for %st(0) (gcc regno = 8) | |
571 | 12 for %st(1) (gcc regno = 9) | |
572 | 13 for %st(2) (gcc regno = 10) | |
573 | 14 for %st(3) (gcc regno = 11) | |
574 | 15 for %st(4) (gcc regno = 12) | |
575 | 16 for %st(5) (gcc regno = 13) | |
576 | 17 for %st(6) (gcc regno = 14) | |
577 | 18 for %st(7) (gcc regno = 15) | |
578 | */ | |
0f290768 | 579 | int const svr4_dbx_register_map[FIRST_PSEUDO_REGISTER] = |
83774849 RH |
580 | { |
581 | 0, 2, 1, 3, 6, 7, 5, 4, /* general regs */ | |
582 | 11, 12, 13, 14, 15, 16, 17, 18, /* fp regs */ | |
3f3f2124 | 583 | -1, 9, -1, -1, -1, /* arg, flags, fpsr, dir, frame */ |
a7180f70 BS |
584 | 21, 22, 23, 24, 25, 26, 27, 28, /* SSE registers */ |
585 | 29, 30, 31, 32, 33, 34, 35, 36, /* MMX registers */ | |
3f3f2124 JH |
586 | -1, -1, -1, -1, -1, -1, -1, -1, /* extemded integer registers */ |
587 | -1, -1, -1, -1, -1, -1, -1, -1, /* extemded SSE registers */ | |
83774849 RH |
588 | }; |
589 | ||
c572e5ba JVA |
590 | /* Test and compare insns in i386.md store the information needed to |
591 | generate branch and scc insns here. */ | |
592 | ||
07933f72 GS |
593 | rtx ix86_compare_op0 = NULL_RTX; |
594 | rtx ix86_compare_op1 = NULL_RTX; | |
f5316dfe | 595 | |
f996902d RH |
596 | /* The encoding characters for the four TLS models present in ELF. */ |
597 | ||
755ac5d4 | 598 | static char const tls_model_chars[] = " GLil"; |
f996902d | 599 | |
7a2e09f4 | 600 | #define MAX_386_STACK_LOCALS 3 |
8362f420 JH |
601 | /* Size of the register save area. */ |
602 | #define X86_64_VARARGS_SIZE (REGPARM_MAX * UNITS_PER_WORD + SSE_REGPARM_MAX * 16) | |
36edd3cc BS |
603 | |
604 | /* Define the structure for the machine field in struct function. */ | |
e2500fed | 605 | struct machine_function GTY(()) |
36edd3cc BS |
606 | { |
607 | rtx stack_locals[(int) MAX_MACHINE_MODE][MAX_386_STACK_LOCALS]; | |
f996902d | 608 | const char *some_ld_name; |
8362f420 | 609 | int save_varrargs_registers; |
6fca22eb | 610 | int accesses_prev_frame; |
36edd3cc BS |
611 | }; |
612 | ||
01d939e8 | 613 | #define ix86_stack_locals (cfun->machine->stack_locals) |
8362f420 | 614 | #define ix86_save_varrargs_registers (cfun->machine->save_varrargs_registers) |
36edd3cc | 615 | |
4dd2ac2c JH |
616 | /* Structure describing stack frame layout. |
617 | Stack grows downward: | |
618 | ||
619 | [arguments] | |
620 | <- ARG_POINTER | |
621 | saved pc | |
622 | ||
623 | saved frame pointer if frame_pointer_needed | |
624 | <- HARD_FRAME_POINTER | |
625 | [saved regs] | |
626 | ||
627 | [padding1] \ | |
628 | ) | |
629 | [va_arg registers] ( | |
630 | > to_allocate <- FRAME_POINTER | |
631 | [frame] ( | |
632 | ) | |
633 | [padding2] / | |
634 | */ | |
635 | struct ix86_frame | |
636 | { | |
637 | int nregs; | |
638 | int padding1; | |
8362f420 | 639 | int va_arg_size; |
4dd2ac2c JH |
640 | HOST_WIDE_INT frame; |
641 | int padding2; | |
642 | int outgoing_arguments_size; | |
8362f420 | 643 | int red_zone_size; |
4dd2ac2c JH |
644 | |
645 | HOST_WIDE_INT to_allocate; | |
646 | /* The offsets relative to ARG_POINTER. */ | |
647 | HOST_WIDE_INT frame_pointer_offset; | |
648 | HOST_WIDE_INT hard_frame_pointer_offset; | |
649 | HOST_WIDE_INT stack_pointer_offset; | |
650 | }; | |
651 | ||
c93e80a5 JH |
652 | /* Used to enable/disable debugging features. */ |
653 | const char *ix86_debug_arg_string, *ix86_debug_addr_string; | |
6189a572 JH |
654 | /* Code model option as passed by user. */ |
655 | const char *ix86_cmodel_string; | |
656 | /* Parsed value. */ | |
657 | enum cmodel ix86_cmodel; | |
80f33d06 GS |
658 | /* Asm dialect. */ |
659 | const char *ix86_asm_string; | |
660 | enum asm_dialect ix86_asm_dialect = ASM_ATT; | |
f996902d RH |
661 | /* TLS dialext. */ |
662 | const char *ix86_tls_dialect_string; | |
663 | enum tls_dialect ix86_tls_dialect = TLS_DIALECT_GNU; | |
6189a572 | 664 | |
5bf0ebab | 665 | /* Which unit we are generating floating point math for. */ |
965f5423 JH |
666 | enum fpmath_unit ix86_fpmath; |
667 | ||
5bf0ebab RH |
668 | /* Which cpu are we scheduling for. */ |
669 | enum processor_type ix86_cpu; | |
670 | /* Which instruction set architecture to use. */ | |
671 | enum processor_type ix86_arch; | |
c8c5cb99 SC |
672 | |
673 | /* Strings to hold which cpu and instruction set architecture to use. */ | |
9c23aa47 ZW |
674 | const char *ix86_cpu_string; /* for -mcpu=<xxx> */ |
675 | const char *ix86_arch_string; /* for -march=<xxx> */ | |
965f5423 | 676 | const char *ix86_fpmath_string; /* for -mfpmath=<xxx> */ |
c8c5cb99 | 677 | |
0f290768 | 678 | /* # of registers to use to pass arguments. */ |
e075ae69 | 679 | const char *ix86_regparm_string; |
e9a25f70 | 680 | |
f4365627 JH |
681 | /* true if sse prefetch instruction is not NOOP. */ |
682 | int x86_prefetch_sse; | |
683 | ||
e075ae69 RH |
684 | /* ix86_regparm_string as a number */ |
685 | int ix86_regparm; | |
e9a25f70 JL |
686 | |
687 | /* Alignment to use for loops and jumps: */ | |
688 | ||
0f290768 | 689 | /* Power of two alignment for loops. */ |
e075ae69 | 690 | const char *ix86_align_loops_string; |
e9a25f70 | 691 | |
0f290768 | 692 | /* Power of two alignment for non-loop jumps. */ |
e075ae69 | 693 | const char *ix86_align_jumps_string; |
e9a25f70 | 694 | |
3af4bd89 | 695 | /* Power of two alignment for stack boundary in bytes. */ |
e075ae69 | 696 | const char *ix86_preferred_stack_boundary_string; |
3af4bd89 JH |
697 | |
698 | /* Preferred alignment for stack boundary in bits. */ | |
e075ae69 | 699 | int ix86_preferred_stack_boundary; |
3af4bd89 | 700 | |
e9a25f70 | 701 | /* Values 1-5: see jump.c */ |
e075ae69 RH |
702 | int ix86_branch_cost; |
703 | const char *ix86_branch_cost_string; | |
e9a25f70 | 704 | |
0f290768 | 705 | /* Power of two alignment for functions. */ |
e075ae69 | 706 | const char *ix86_align_funcs_string; |
623fe810 RH |
707 | |
708 | /* Prefix built by ASM_GENERATE_INTERNAL_LABEL. */ | |
709 | static char internal_label_prefix[16]; | |
710 | static int internal_label_prefix_len; | |
e075ae69 | 711 | \f |
623fe810 | 712 | static int local_symbolic_operand PARAMS ((rtx, enum machine_mode)); |
f996902d | 713 | static int tls_symbolic_operand_1 PARAMS ((rtx, enum tls_model)); |
f6da8bc3 KG |
714 | static void output_pic_addr_const PARAMS ((FILE *, rtx, int)); |
715 | static void put_condition_code PARAMS ((enum rtx_code, enum machine_mode, | |
e075ae69 | 716 | int, int, FILE *)); |
f996902d RH |
717 | static const char *get_some_local_dynamic_name PARAMS ((void)); |
718 | static int get_some_local_dynamic_name_1 PARAMS ((rtx *, void *)); | |
719 | static rtx maybe_get_pool_constant PARAMS ((rtx)); | |
f6da8bc3 | 720 | static rtx ix86_expand_int_compare PARAMS ((enum rtx_code, rtx, rtx)); |
3a3677ff RH |
721 | static enum rtx_code ix86_prepare_fp_compare_args PARAMS ((enum rtx_code, |
722 | rtx *, rtx *)); | |
f996902d | 723 | static rtx get_thread_pointer PARAMS ((void)); |
145aacc2 | 724 | static void get_pc_thunk_name PARAMS ((char [32], unsigned int)); |
f6da8bc3 KG |
725 | static rtx gen_push PARAMS ((rtx)); |
726 | static int memory_address_length PARAMS ((rtx addr)); | |
727 | static int ix86_flags_dependant PARAMS ((rtx, rtx, enum attr_type)); | |
728 | static int ix86_agi_dependant PARAMS ((rtx, rtx, enum attr_type)); | |
f6da8bc3 KG |
729 | static enum attr_ppro_uops ix86_safe_ppro_uops PARAMS ((rtx)); |
730 | static void ix86_dump_ppro_packet PARAMS ((FILE *)); | |
731 | static void ix86_reorder_insn PARAMS ((rtx *, rtx *)); | |
e2500fed | 732 | static struct machine_function * ix86_init_machine_status PARAMS ((void)); |
2b589241 | 733 | static int ix86_split_to_parts PARAMS ((rtx, rtx *, enum machine_mode)); |
b531087a KH |
734 | static int ix86_nsaved_regs PARAMS ((void)); |
735 | static void ix86_emit_save_regs PARAMS ((void)); | |
c6036a37 | 736 | static void ix86_emit_save_regs_using_mov PARAMS ((rtx, HOST_WIDE_INT)); |
37a58036 | 737 | static void ix86_emit_restore_regs_using_mov PARAMS ((rtx, int, int)); |
bd09bdeb | 738 | static void ix86_output_function_epilogue PARAMS ((FILE *, HOST_WIDE_INT)); |
0e4970d7 | 739 | static void ix86_set_move_mem_attrs_1 PARAMS ((rtx, rtx, rtx, rtx, rtx)); |
b531087a | 740 | static void ix86_sched_reorder_ppro PARAMS ((rtx *, rtx *)); |
55efb413 | 741 | static HOST_WIDE_INT ix86_GOT_alias_set PARAMS ((void)); |
0945b39d | 742 | static void ix86_adjust_counter PARAMS ((rtx, HOST_WIDE_INT)); |
0945b39d JH |
743 | static rtx ix86_expand_aligntest PARAMS ((rtx, int)); |
744 | static void ix86_expand_strlensi_unroll_1 PARAMS ((rtx, rtx)); | |
c237e94a ZW |
745 | static int ix86_issue_rate PARAMS ((void)); |
746 | static int ix86_adjust_cost PARAMS ((rtx, rtx, rtx, int)); | |
747 | static void ix86_sched_init PARAMS ((FILE *, int, int)); | |
748 | static int ix86_sched_reorder PARAMS ((FILE *, int, rtx *, int *, int)); | |
749 | static int ix86_variable_issue PARAMS ((FILE *, int, rtx, int)); | |
9b690711 RH |
750 | static int ia32_use_dfa_pipeline_interface PARAMS ((void)); |
751 | static int ia32_multipass_dfa_lookahead PARAMS ((void)); | |
e37af218 | 752 | static void ix86_init_mmx_sse_builtins PARAMS ((void)); |
e075ae69 RH |
753 | |
754 | struct ix86_address | |
755 | { | |
756 | rtx base, index, disp; | |
757 | HOST_WIDE_INT scale; | |
758 | }; | |
b08de47e | 759 | |
e075ae69 | 760 | static int ix86_decompose_address PARAMS ((rtx, struct ix86_address *)); |
bd793c65 | 761 | |
f996902d RH |
762 | static void ix86_encode_section_info PARAMS ((tree, int)) ATTRIBUTE_UNUSED; |
763 | static const char *ix86_strip_name_encoding PARAMS ((const char *)) | |
764 | ATTRIBUTE_UNUSED; | |
fb49053f | 765 | |
bd793c65 | 766 | struct builtin_description; |
8b60264b KG |
767 | static rtx ix86_expand_sse_comi PARAMS ((const struct builtin_description *, |
768 | tree, rtx)); | |
769 | static rtx ix86_expand_sse_compare PARAMS ((const struct builtin_description *, | |
770 | tree, rtx)); | |
bd793c65 BS |
771 | static rtx ix86_expand_unop1_builtin PARAMS ((enum insn_code, tree, rtx)); |
772 | static rtx ix86_expand_unop_builtin PARAMS ((enum insn_code, tree, rtx, int)); | |
773 | static rtx ix86_expand_binop_builtin PARAMS ((enum insn_code, tree, rtx)); | |
e37af218 | 774 | static rtx ix86_expand_store_builtin PARAMS ((enum insn_code, tree)); |
bd793c65 | 775 | static rtx safe_vector_operand PARAMS ((rtx, enum machine_mode)); |
c0c102a9 JH |
776 | static enum rtx_code ix86_fp_compare_code_to_integer PARAMS ((enum rtx_code)); |
777 | static void ix86_fp_comparison_codes PARAMS ((enum rtx_code code, | |
778 | enum rtx_code *, | |
779 | enum rtx_code *, | |
780 | enum rtx_code *)); | |
9e7adcb3 JH |
781 | static rtx ix86_expand_fp_compare PARAMS ((enum rtx_code, rtx, rtx, rtx, |
782 | rtx *, rtx *)); | |
783 | static int ix86_fp_comparison_arithmetics_cost PARAMS ((enum rtx_code code)); | |
784 | static int ix86_fp_comparison_fcomi_cost PARAMS ((enum rtx_code code)); | |
785 | static int ix86_fp_comparison_sahf_cost PARAMS ((enum rtx_code code)); | |
786 | static int ix86_fp_comparison_cost PARAMS ((enum rtx_code code)); | |
bd09bdeb | 787 | static unsigned int ix86_select_alt_pic_regnum PARAMS ((void)); |
9b690711 | 788 | static int ix86_save_reg PARAMS ((unsigned int, int)); |
4dd2ac2c | 789 | static void ix86_compute_frame_layout PARAMS ((struct ix86_frame *)); |
8d8e52be | 790 | static int ix86_comp_type_attributes PARAMS ((tree, tree)); |
91d231cb JM |
791 | const struct attribute_spec ix86_attribute_table[]; |
792 | static tree ix86_handle_cdecl_attribute PARAMS ((tree *, tree, tree, int, bool *)); | |
793 | static tree ix86_handle_regparm_attribute PARAMS ((tree *, tree, tree, int, bool *)); | |
b069de3b | 794 | static int ix86_value_regno PARAMS ((enum machine_mode)); |
7c262518 | 795 | |
21c318ba | 796 | #if defined (DO_GLOBAL_CTORS_BODY) && defined (HAS_INIT_SECTION) |
2cc07db4 RH |
797 | static void ix86_svr3_asm_out_constructor PARAMS ((rtx, int)); |
798 | #endif | |
e56feed6 | 799 | |
53c17031 JH |
800 | /* Register class used for passing given 64bit part of the argument. |
801 | These represent classes as documented by the PS ABI, with the exception | |
802 | of SSESF, SSEDF classes, that are basically SSE class, just gcc will | |
803 | use SF or DFmode move instead of DImode to avoid reformating penalties. | |
804 | ||
805 | Similary we play games with INTEGERSI_CLASS to use cheaper SImode moves | |
806 | whenever possible (upper half does contain padding). | |
807 | */ | |
808 | enum x86_64_reg_class | |
809 | { | |
810 | X86_64_NO_CLASS, | |
811 | X86_64_INTEGER_CLASS, | |
812 | X86_64_INTEGERSI_CLASS, | |
813 | X86_64_SSE_CLASS, | |
814 | X86_64_SSESF_CLASS, | |
815 | X86_64_SSEDF_CLASS, | |
816 | X86_64_SSEUP_CLASS, | |
817 | X86_64_X87_CLASS, | |
818 | X86_64_X87UP_CLASS, | |
819 | X86_64_MEMORY_CLASS | |
820 | }; | |
0b5826ac | 821 | static const char * const x86_64_reg_class_name[] = |
53c17031 JH |
822 | {"no", "integer", "integerSI", "sse", "sseSF", "sseDF", "sseup", "x87", "x87up", "no"}; |
823 | ||
824 | #define MAX_CLASSES 4 | |
825 | static int classify_argument PARAMS ((enum machine_mode, tree, | |
826 | enum x86_64_reg_class [MAX_CLASSES], | |
827 | int)); | |
828 | static int examine_argument PARAMS ((enum machine_mode, tree, int, int *, | |
829 | int *)); | |
830 | static rtx construct_container PARAMS ((enum machine_mode, tree, int, int, int, | |
07933f72 | 831 | const int *, int)); |
53c17031 JH |
832 | static enum x86_64_reg_class merge_classes PARAMS ((enum x86_64_reg_class, |
833 | enum x86_64_reg_class)); | |
672a6f42 NB |
834 | \f |
835 | /* Initialize the GCC target structure. */ | |
91d231cb JM |
836 | #undef TARGET_ATTRIBUTE_TABLE |
837 | #define TARGET_ATTRIBUTE_TABLE ix86_attribute_table | |
672a6f42 | 838 | #ifdef TARGET_DLLIMPORT_DECL_ATTRIBUTES |
f5f4be42 NB |
839 | # undef TARGET_MERGE_DECL_ATTRIBUTES |
840 | # define TARGET_MERGE_DECL_ATTRIBUTES merge_dllimport_decl_attributes | |
672a6f42 NB |
841 | #endif |
842 | ||
8d8e52be JM |
843 | #undef TARGET_COMP_TYPE_ATTRIBUTES |
844 | #define TARGET_COMP_TYPE_ATTRIBUTES ix86_comp_type_attributes | |
845 | ||
f6155fda SS |
846 | #undef TARGET_INIT_BUILTINS |
847 | #define TARGET_INIT_BUILTINS ix86_init_builtins | |
848 | ||
849 | #undef TARGET_EXPAND_BUILTIN | |
850 | #define TARGET_EXPAND_BUILTIN ix86_expand_builtin | |
851 | ||
bd09bdeb RH |
852 | #undef TARGET_ASM_FUNCTION_EPILOGUE |
853 | #define TARGET_ASM_FUNCTION_EPILOGUE ix86_output_function_epilogue | |
08c148a8 | 854 | |
17b53c33 NB |
855 | #undef TARGET_ASM_OPEN_PAREN |
856 | #define TARGET_ASM_OPEN_PAREN "" | |
857 | #undef TARGET_ASM_CLOSE_PAREN | |
858 | #define TARGET_ASM_CLOSE_PAREN "" | |
859 | ||
301d03af RS |
860 | #undef TARGET_ASM_ALIGNED_HI_OP |
861 | #define TARGET_ASM_ALIGNED_HI_OP ASM_SHORT | |
862 | #undef TARGET_ASM_ALIGNED_SI_OP | |
863 | #define TARGET_ASM_ALIGNED_SI_OP ASM_LONG | |
864 | #ifdef ASM_QUAD | |
865 | #undef TARGET_ASM_ALIGNED_DI_OP | |
866 | #define TARGET_ASM_ALIGNED_DI_OP ASM_QUAD | |
867 | #endif | |
868 | ||
869 | #undef TARGET_ASM_UNALIGNED_HI_OP | |
870 | #define TARGET_ASM_UNALIGNED_HI_OP TARGET_ASM_ALIGNED_HI_OP | |
871 | #undef TARGET_ASM_UNALIGNED_SI_OP | |
872 | #define TARGET_ASM_UNALIGNED_SI_OP TARGET_ASM_ALIGNED_SI_OP | |
873 | #undef TARGET_ASM_UNALIGNED_DI_OP | |
874 | #define TARGET_ASM_UNALIGNED_DI_OP TARGET_ASM_ALIGNED_DI_OP | |
875 | ||
c237e94a ZW |
876 | #undef TARGET_SCHED_ADJUST_COST |
877 | #define TARGET_SCHED_ADJUST_COST ix86_adjust_cost | |
878 | #undef TARGET_SCHED_ISSUE_RATE | |
879 | #define TARGET_SCHED_ISSUE_RATE ix86_issue_rate | |
880 | #undef TARGET_SCHED_VARIABLE_ISSUE | |
881 | #define TARGET_SCHED_VARIABLE_ISSUE ix86_variable_issue | |
882 | #undef TARGET_SCHED_INIT | |
883 | #define TARGET_SCHED_INIT ix86_sched_init | |
884 | #undef TARGET_SCHED_REORDER | |
885 | #define TARGET_SCHED_REORDER ix86_sched_reorder | |
fce5a9f2 | 886 | #undef TARGET_SCHED_USE_DFA_PIPELINE_INTERFACE |
9b690711 RH |
887 | #define TARGET_SCHED_USE_DFA_PIPELINE_INTERFACE \ |
888 | ia32_use_dfa_pipeline_interface | |
889 | #undef TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD | |
890 | #define TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD \ | |
891 | ia32_multipass_dfa_lookahead | |
c237e94a | 892 | |
f996902d RH |
893 | #ifdef HAVE_AS_TLS |
894 | #undef TARGET_HAVE_TLS | |
895 | #define TARGET_HAVE_TLS true | |
896 | #endif | |
897 | ||
f6897b10 | 898 | struct gcc_target targetm = TARGET_INITIALIZER; |
e075ae69 | 899 | \f |
f5316dfe MM |
900 | /* Sometimes certain combinations of command options do not make |
901 | sense on a particular target machine. You can define a macro | |
902 | `OVERRIDE_OPTIONS' to take account of this. This macro, if | |
903 | defined, is executed once just after all the command options have | |
904 | been parsed. | |
905 | ||
906 | Don't use this macro to turn on various extra optimizations for | |
907 | `-O'. That is what `OPTIMIZATION_OPTIONS' is for. */ | |
908 | ||
909 | void | |
910 | override_options () | |
911 | { | |
400500c4 | 912 | int i; |
e075ae69 RH |
913 | /* Comes from final.c -- no real reason to change it. */ |
914 | #define MAX_CODE_ALIGN 16 | |
f5316dfe | 915 | |
c8c5cb99 SC |
916 | static struct ptt |
917 | { | |
8b60264b KG |
918 | const struct processor_costs *cost; /* Processor costs */ |
919 | const int target_enable; /* Target flags to enable. */ | |
920 | const int target_disable; /* Target flags to disable. */ | |
921 | const int align_loop; /* Default alignments. */ | |
2cca7283 | 922 | const int align_loop_max_skip; |
8b60264b | 923 | const int align_jump; |
2cca7283 | 924 | const int align_jump_max_skip; |
8b60264b KG |
925 | const int align_func; |
926 | const int branch_cost; | |
e075ae69 | 927 | } |
0f290768 | 928 | const processor_target_table[PROCESSOR_max] = |
e075ae69 | 929 | { |
2cca7283 JH |
930 | {&i386_cost, 0, 0, 4, 3, 4, 3, 4, 1}, |
931 | {&i486_cost, 0, 0, 16, 15, 16, 15, 16, 1}, | |
932 | {&pentium_cost, 0, 0, 16, 7, 16, 7, 16, 1}, | |
933 | {&pentiumpro_cost, 0, 0, 16, 15, 16, 7, 16, 1}, | |
934 | {&k6_cost, 0, 0, 32, 7, 32, 7, 32, 1}, | |
935 | {&athlon_cost, 0, 0, 16, 7, 64, 7, 16, 1}, | |
936 | {&pentium4_cost, 0, 0, 0, 0, 0, 0, 0, 1} | |
e075ae69 RH |
937 | }; |
938 | ||
f4365627 | 939 | static const char * const cpu_names[] = TARGET_CPU_DEFAULT_NAMES; |
e075ae69 RH |
940 | static struct pta |
941 | { | |
8b60264b KG |
942 | const char *const name; /* processor name or nickname. */ |
943 | const enum processor_type processor; | |
0dd0e980 JH |
944 | const enum pta_flags |
945 | { | |
946 | PTA_SSE = 1, | |
947 | PTA_SSE2 = 2, | |
948 | PTA_MMX = 4, | |
f4365627 | 949 | PTA_PREFETCH_SSE = 8, |
0dd0e980 JH |
950 | PTA_3DNOW = 16, |
951 | PTA_3DNOW_A = 64 | |
952 | } flags; | |
e075ae69 | 953 | } |
0f290768 | 954 | const processor_alias_table[] = |
e075ae69 | 955 | { |
0dd0e980 JH |
956 | {"i386", PROCESSOR_I386, 0}, |
957 | {"i486", PROCESSOR_I486, 0}, | |
958 | {"i586", PROCESSOR_PENTIUM, 0}, | |
959 | {"pentium", PROCESSOR_PENTIUM, 0}, | |
960 | {"pentium-mmx", PROCESSOR_PENTIUM, PTA_MMX}, | |
3780101d JG |
961 | {"winchip-c6", PROCESSOR_I486, PTA_MMX}, |
962 | {"winchip2", PROCESSOR_I486, PTA_MMX | PTA_3DNOW}, | |
963 | {"c3", PROCESSOR_I486, PTA_MMX | PTA_3DNOW}, | |
0dd0e980 JH |
964 | {"i686", PROCESSOR_PENTIUMPRO, 0}, |
965 | {"pentiumpro", PROCESSOR_PENTIUMPRO, 0}, | |
966 | {"pentium2", PROCESSOR_PENTIUMPRO, PTA_MMX}, | |
f4365627 | 967 | {"pentium3", PROCESSOR_PENTIUMPRO, PTA_MMX | PTA_SSE | PTA_PREFETCH_SSE}, |
0dd0e980 | 968 | {"pentium4", PROCESSOR_PENTIUM4, PTA_SSE | PTA_SSE2 | |
f4365627 | 969 | PTA_MMX | PTA_PREFETCH_SSE}, |
0dd0e980 JH |
970 | {"k6", PROCESSOR_K6, PTA_MMX}, |
971 | {"k6-2", PROCESSOR_K6, PTA_MMX | PTA_3DNOW}, | |
972 | {"k6-3", PROCESSOR_K6, PTA_MMX | PTA_3DNOW}, | |
f4365627 | 973 | {"athlon", PROCESSOR_ATHLON, PTA_MMX | PTA_PREFETCH_SSE | PTA_3DNOW |
0dd0e980 | 974 | | PTA_3DNOW_A}, |
f4365627 | 975 | {"athlon-tbird", PROCESSOR_ATHLON, PTA_MMX | PTA_PREFETCH_SSE |
0dd0e980 | 976 | | PTA_3DNOW | PTA_3DNOW_A}, |
f4365627 | 977 | {"athlon-4", PROCESSOR_ATHLON, PTA_MMX | PTA_PREFETCH_SSE | PTA_3DNOW |
0dd0e980 | 978 | | PTA_3DNOW_A | PTA_SSE}, |
f4365627 | 979 | {"athlon-xp", PROCESSOR_ATHLON, PTA_MMX | PTA_PREFETCH_SSE | PTA_3DNOW |
0dd0e980 | 980 | | PTA_3DNOW_A | PTA_SSE}, |
f4365627 | 981 | {"athlon-mp", PROCESSOR_ATHLON, PTA_MMX | PTA_PREFETCH_SSE | PTA_3DNOW |
0dd0e980 | 982 | | PTA_3DNOW_A | PTA_SSE}, |
3af4bd89 | 983 | }; |
c8c5cb99 | 984 | |
ca7558fc | 985 | int const pta_size = ARRAY_SIZE (processor_alias_table); |
c8c5cb99 | 986 | |
3dc85dfb RH |
987 | /* By default our XFmode is the 80-bit extended format. If we have |
988 | use TFmode instead, it's also the 80-bit format, but with padding. */ | |
989 | real_format_for_mode[XFmode - QFmode] = &ieee_extended_intel_96_format; | |
990 | real_format_for_mode[TFmode - QFmode] = &ieee_extended_intel_128_format; | |
991 | ||
f5316dfe MM |
992 | #ifdef SUBTARGET_OVERRIDE_OPTIONS |
993 | SUBTARGET_OVERRIDE_OPTIONS; | |
994 | #endif | |
995 | ||
f4365627 JH |
996 | if (!ix86_cpu_string && ix86_arch_string) |
997 | ix86_cpu_string = ix86_arch_string; | |
998 | if (!ix86_cpu_string) | |
999 | ix86_cpu_string = cpu_names [TARGET_CPU_DEFAULT]; | |
1000 | if (!ix86_arch_string) | |
1001 | ix86_arch_string = TARGET_64BIT ? "athlon-4" : "i386"; | |
e075ae69 | 1002 | |
6189a572 JH |
1003 | if (ix86_cmodel_string != 0) |
1004 | { | |
1005 | if (!strcmp (ix86_cmodel_string, "small")) | |
1006 | ix86_cmodel = flag_pic ? CM_SMALL_PIC : CM_SMALL; | |
1007 | else if (flag_pic) | |
c725bd79 | 1008 | sorry ("code model %s not supported in PIC mode", ix86_cmodel_string); |
6189a572 JH |
1009 | else if (!strcmp (ix86_cmodel_string, "32")) |
1010 | ix86_cmodel = CM_32; | |
1011 | else if (!strcmp (ix86_cmodel_string, "kernel") && !flag_pic) | |
1012 | ix86_cmodel = CM_KERNEL; | |
1013 | else if (!strcmp (ix86_cmodel_string, "medium") && !flag_pic) | |
1014 | ix86_cmodel = CM_MEDIUM; | |
1015 | else if (!strcmp (ix86_cmodel_string, "large") && !flag_pic) | |
1016 | ix86_cmodel = CM_LARGE; | |
1017 | else | |
1018 | error ("bad value (%s) for -mcmodel= switch", ix86_cmodel_string); | |
1019 | } | |
1020 | else | |
1021 | { | |
1022 | ix86_cmodel = CM_32; | |
1023 | if (TARGET_64BIT) | |
1024 | ix86_cmodel = flag_pic ? CM_SMALL_PIC : CM_SMALL; | |
1025 | } | |
c93e80a5 JH |
1026 | if (ix86_asm_string != 0) |
1027 | { | |
1028 | if (!strcmp (ix86_asm_string, "intel")) | |
1029 | ix86_asm_dialect = ASM_INTEL; | |
1030 | else if (!strcmp (ix86_asm_string, "att")) | |
1031 | ix86_asm_dialect = ASM_ATT; | |
1032 | else | |
1033 | error ("bad value (%s) for -masm= switch", ix86_asm_string); | |
1034 | } | |
6189a572 | 1035 | if ((TARGET_64BIT == 0) != (ix86_cmodel == CM_32)) |
c725bd79 | 1036 | error ("code model `%s' not supported in the %s bit mode", |
6189a572 JH |
1037 | ix86_cmodel_string, TARGET_64BIT ? "64" : "32"); |
1038 | if (ix86_cmodel == CM_LARGE) | |
c725bd79 | 1039 | sorry ("code model `large' not supported yet"); |
0c2dc519 | 1040 | if ((TARGET_64BIT != 0) != ((target_flags & MASK_64BIT) != 0)) |
c725bd79 | 1041 | sorry ("%i-bit mode not compiled in", |
0c2dc519 | 1042 | (target_flags & MASK_64BIT) ? 64 : 32); |
6189a572 | 1043 | |
f4365627 JH |
1044 | for (i = 0; i < pta_size; i++) |
1045 | if (! strcmp (ix86_arch_string, processor_alias_table[i].name)) | |
1046 | { | |
1047 | ix86_arch = processor_alias_table[i].processor; | |
1048 | /* Default cpu tuning to the architecture. */ | |
1049 | ix86_cpu = ix86_arch; | |
1050 | if (processor_alias_table[i].flags & PTA_MMX | |
9ef1b13a | 1051 | && !(target_flags_explicit & MASK_MMX)) |
f4365627 JH |
1052 | target_flags |= MASK_MMX; |
1053 | if (processor_alias_table[i].flags & PTA_3DNOW | |
9ef1b13a | 1054 | && !(target_flags_explicit & MASK_3DNOW)) |
f4365627 JH |
1055 | target_flags |= MASK_3DNOW; |
1056 | if (processor_alias_table[i].flags & PTA_3DNOW_A | |
9ef1b13a | 1057 | && !(target_flags_explicit & MASK_3DNOW_A)) |
f4365627 JH |
1058 | target_flags |= MASK_3DNOW_A; |
1059 | if (processor_alias_table[i].flags & PTA_SSE | |
9ef1b13a | 1060 | && !(target_flags_explicit & MASK_SSE)) |
f4365627 JH |
1061 | target_flags |= MASK_SSE; |
1062 | if (processor_alias_table[i].flags & PTA_SSE2 | |
9ef1b13a | 1063 | && !(target_flags_explicit & MASK_SSE2)) |
f4365627 JH |
1064 | target_flags |= MASK_SSE2; |
1065 | if (processor_alias_table[i].flags & PTA_PREFETCH_SSE) | |
1066 | x86_prefetch_sse = true; | |
1067 | break; | |
1068 | } | |
400500c4 | 1069 | |
f4365627 JH |
1070 | if (i == pta_size) |
1071 | error ("bad value (%s) for -march= switch", ix86_arch_string); | |
e075ae69 | 1072 | |
f4365627 JH |
1073 | for (i = 0; i < pta_size; i++) |
1074 | if (! strcmp (ix86_cpu_string, processor_alias_table[i].name)) | |
1075 | { | |
1076 | ix86_cpu = processor_alias_table[i].processor; | |
1077 | break; | |
1078 | } | |
1079 | if (processor_alias_table[i].flags & PTA_PREFETCH_SSE) | |
1080 | x86_prefetch_sse = true; | |
1081 | if (i == pta_size) | |
1082 | error ("bad value (%s) for -mcpu= switch", ix86_cpu_string); | |
e075ae69 | 1083 | |
2ab0437e JH |
1084 | if (optimize_size) |
1085 | ix86_cost = &size_cost; | |
1086 | else | |
1087 | ix86_cost = processor_target_table[ix86_cpu].cost; | |
e075ae69 RH |
1088 | target_flags |= processor_target_table[ix86_cpu].target_enable; |
1089 | target_flags &= ~processor_target_table[ix86_cpu].target_disable; | |
1090 | ||
36edd3cc BS |
1091 | /* Arrange to set up i386_stack_locals for all functions. */ |
1092 | init_machine_status = ix86_init_machine_status; | |
fce5a9f2 | 1093 | |
0f290768 | 1094 | /* Validate -mregparm= value. */ |
e075ae69 | 1095 | if (ix86_regparm_string) |
b08de47e | 1096 | { |
400500c4 RK |
1097 | i = atoi (ix86_regparm_string); |
1098 | if (i < 0 || i > REGPARM_MAX) | |
1099 | error ("-mregparm=%d is not between 0 and %d", i, REGPARM_MAX); | |
1100 | else | |
1101 | ix86_regparm = i; | |
b08de47e | 1102 | } |
0d7d98ee JH |
1103 | else |
1104 | if (TARGET_64BIT) | |
1105 | ix86_regparm = REGPARM_MAX; | |
b08de47e | 1106 | |
3e18fdf6 | 1107 | /* If the user has provided any of the -malign-* options, |
a4f31c00 | 1108 | warn and use that value only if -falign-* is not set. |
3e18fdf6 | 1109 | Remove this code in GCC 3.2 or later. */ |
e075ae69 | 1110 | if (ix86_align_loops_string) |
b08de47e | 1111 | { |
3e18fdf6 GK |
1112 | warning ("-malign-loops is obsolete, use -falign-loops"); |
1113 | if (align_loops == 0) | |
1114 | { | |
1115 | i = atoi (ix86_align_loops_string); | |
1116 | if (i < 0 || i > MAX_CODE_ALIGN) | |
1117 | error ("-malign-loops=%d is not between 0 and %d", i, MAX_CODE_ALIGN); | |
1118 | else | |
1119 | align_loops = 1 << i; | |
1120 | } | |
b08de47e | 1121 | } |
3af4bd89 | 1122 | |
e075ae69 | 1123 | if (ix86_align_jumps_string) |
b08de47e | 1124 | { |
3e18fdf6 GK |
1125 | warning ("-malign-jumps is obsolete, use -falign-jumps"); |
1126 | if (align_jumps == 0) | |
1127 | { | |
1128 | i = atoi (ix86_align_jumps_string); | |
1129 | if (i < 0 || i > MAX_CODE_ALIGN) | |
1130 | error ("-malign-loops=%d is not between 0 and %d", i, MAX_CODE_ALIGN); | |
1131 | else | |
1132 | align_jumps = 1 << i; | |
1133 | } | |
b08de47e | 1134 | } |
b08de47e | 1135 | |
e075ae69 | 1136 | if (ix86_align_funcs_string) |
b08de47e | 1137 | { |
3e18fdf6 GK |
1138 | warning ("-malign-functions is obsolete, use -falign-functions"); |
1139 | if (align_functions == 0) | |
1140 | { | |
1141 | i = atoi (ix86_align_funcs_string); | |
1142 | if (i < 0 || i > MAX_CODE_ALIGN) | |
1143 | error ("-malign-loops=%d is not between 0 and %d", i, MAX_CODE_ALIGN); | |
1144 | else | |
1145 | align_functions = 1 << i; | |
1146 | } | |
b08de47e | 1147 | } |
3af4bd89 | 1148 | |
3e18fdf6 | 1149 | /* Default align_* from the processor table. */ |
3e18fdf6 | 1150 | if (align_loops == 0) |
2cca7283 JH |
1151 | { |
1152 | align_loops = processor_target_table[ix86_cpu].align_loop; | |
1153 | align_loops_max_skip = processor_target_table[ix86_cpu].align_loop_max_skip; | |
1154 | } | |
3e18fdf6 | 1155 | if (align_jumps == 0) |
2cca7283 JH |
1156 | { |
1157 | align_jumps = processor_target_table[ix86_cpu].align_jump; | |
1158 | align_jumps_max_skip = processor_target_table[ix86_cpu].align_jump_max_skip; | |
1159 | } | |
3e18fdf6 | 1160 | if (align_functions == 0) |
2cca7283 JH |
1161 | { |
1162 | align_functions = processor_target_table[ix86_cpu].align_func; | |
1163 | } | |
3e18fdf6 | 1164 | |
e4c0478d | 1165 | /* Validate -mpreferred-stack-boundary= value, or provide default. |
fbb83b43 AO |
1166 | The default of 128 bits is for Pentium III's SSE __m128, but we |
1167 | don't want additional code to keep the stack aligned when | |
1168 | optimizing for code size. */ | |
1169 | ix86_preferred_stack_boundary = (optimize_size | |
ef49d42e | 1170 | ? TARGET_64BIT ? 128 : 32 |
fbb83b43 | 1171 | : 128); |
e075ae69 | 1172 | if (ix86_preferred_stack_boundary_string) |
3af4bd89 | 1173 | { |
400500c4 | 1174 | i = atoi (ix86_preferred_stack_boundary_string); |
ef49d42e | 1175 | if (i < (TARGET_64BIT ? 4 : 2) || i > 12) |
c6257c5d | 1176 | error ("-mpreferred-stack-boundary=%d is not between %d and 12", i, |
ef49d42e | 1177 | TARGET_64BIT ? 4 : 2); |
400500c4 RK |
1178 | else |
1179 | ix86_preferred_stack_boundary = (1 << i) * BITS_PER_UNIT; | |
3af4bd89 | 1180 | } |
77a989d1 | 1181 | |
0f290768 | 1182 | /* Validate -mbranch-cost= value, or provide default. */ |
e075ae69 RH |
1183 | ix86_branch_cost = processor_target_table[ix86_cpu].branch_cost; |
1184 | if (ix86_branch_cost_string) | |
804a8ee0 | 1185 | { |
400500c4 RK |
1186 | i = atoi (ix86_branch_cost_string); |
1187 | if (i < 0 || i > 5) | |
1188 | error ("-mbranch-cost=%d is not between 0 and 5", i); | |
1189 | else | |
1190 | ix86_branch_cost = i; | |
804a8ee0 | 1191 | } |
804a8ee0 | 1192 | |
f996902d RH |
1193 | if (ix86_tls_dialect_string) |
1194 | { | |
1195 | if (strcmp (ix86_tls_dialect_string, "gnu") == 0) | |
1196 | ix86_tls_dialect = TLS_DIALECT_GNU; | |
1197 | else if (strcmp (ix86_tls_dialect_string, "sun") == 0) | |
1198 | ix86_tls_dialect = TLS_DIALECT_SUN; | |
1199 | else | |
1200 | error ("bad value (%s) for -mtls-dialect= switch", | |
1201 | ix86_tls_dialect_string); | |
1202 | } | |
1203 | ||
db01f480 JH |
1204 | if (profile_flag) |
1205 | target_flags &= ~MASK_OMIT_LEAF_FRAME_POINTER; | |
1206 | ||
e9a25f70 JL |
1207 | /* Keep nonleaf frame pointers. */ |
1208 | if (TARGET_OMIT_LEAF_FRAME_POINTER) | |
77a989d1 | 1209 | flag_omit_frame_pointer = 1; |
e075ae69 RH |
1210 | |
1211 | /* If we're doing fast math, we don't care about comparison order | |
1212 | wrt NaNs. This lets us use a shorter comparison sequence. */ | |
de6c5979 | 1213 | if (flag_unsafe_math_optimizations) |
e075ae69 RH |
1214 | target_flags &= ~MASK_IEEE_FP; |
1215 | ||
30c99a84 RH |
1216 | /* If the architecture always has an FPU, turn off NO_FANCY_MATH_387, |
1217 | since the insns won't need emulation. */ | |
1218 | if (x86_arch_always_fancy_math_387 & (1 << ix86_arch)) | |
1219 | target_flags &= ~MASK_NO_FANCY_MATH_387; | |
1220 | ||
14f73b5a JH |
1221 | if (TARGET_64BIT) |
1222 | { | |
1223 | if (TARGET_ALIGN_DOUBLE) | |
c725bd79 | 1224 | error ("-malign-double makes no sense in the 64bit mode"); |
14f73b5a | 1225 | if (TARGET_RTD) |
c725bd79 | 1226 | error ("-mrtd calling convention not supported in the 64bit mode"); |
14f73b5a | 1227 | /* Enable by default the SSE and MMX builtins. */ |
965f5423 JH |
1228 | target_flags |= (MASK_SSE2 | MASK_SSE | MASK_MMX | MASK_128BIT_LONG_DOUBLE); |
1229 | ix86_fpmath = FPMATH_SSE; | |
14f73b5a | 1230 | } |
965f5423 JH |
1231 | else |
1232 | ix86_fpmath = FPMATH_387; | |
1233 | ||
1234 | if (ix86_fpmath_string != 0) | |
1235 | { | |
1236 | if (! strcmp (ix86_fpmath_string, "387")) | |
1237 | ix86_fpmath = FPMATH_387; | |
1238 | else if (! strcmp (ix86_fpmath_string, "sse")) | |
1239 | { | |
1240 | if (!TARGET_SSE) | |
1241 | { | |
1242 | warning ("SSE instruction set disabled, using 387 arithmetics"); | |
1243 | ix86_fpmath = FPMATH_387; | |
1244 | } | |
1245 | else | |
1246 | ix86_fpmath = FPMATH_SSE; | |
1247 | } | |
1248 | else if (! strcmp (ix86_fpmath_string, "387,sse") | |
1249 | || ! strcmp (ix86_fpmath_string, "sse,387")) | |
1250 | { | |
1251 | if (!TARGET_SSE) | |
1252 | { | |
1253 | warning ("SSE instruction set disabled, using 387 arithmetics"); | |
1254 | ix86_fpmath = FPMATH_387; | |
1255 | } | |
1256 | else if (!TARGET_80387) | |
1257 | { | |
1258 | warning ("387 instruction set disabled, using SSE arithmetics"); | |
1259 | ix86_fpmath = FPMATH_SSE; | |
1260 | } | |
1261 | else | |
1262 | ix86_fpmath = FPMATH_SSE | FPMATH_387; | |
1263 | } | |
fce5a9f2 | 1264 | else |
965f5423 JH |
1265 | error ("bad value (%s) for -mfpmath= switch", ix86_fpmath_string); |
1266 | } | |
14f73b5a | 1267 | |
a7180f70 BS |
1268 | /* It makes no sense to ask for just SSE builtins, so MMX is also turned |
1269 | on by -msse. */ | |
1270 | if (TARGET_SSE) | |
e37af218 RH |
1271 | { |
1272 | target_flags |= MASK_MMX; | |
1273 | x86_prefetch_sse = true; | |
1274 | } | |
c6036a37 | 1275 | |
47f339cf BS |
1276 | /* If it has 3DNow! it also has MMX so MMX is also turned on by -m3dnow */ |
1277 | if (TARGET_3DNOW) | |
1278 | { | |
1279 | target_flags |= MASK_MMX; | |
1280 | /* If we are targetting the Athlon architecture, enable the 3Dnow/MMX | |
1281 | extensions it adds. */ | |
1282 | if (x86_3dnow_a & (1 << ix86_arch)) | |
1283 | target_flags |= MASK_3DNOW_A; | |
1284 | } | |
c6036a37 | 1285 | if ((x86_accumulate_outgoing_args & CPUMASK) |
9ef1b13a | 1286 | && !(target_flags_explicit & MASK_ACCUMULATE_OUTGOING_ARGS) |
c6036a37 JH |
1287 | && !optimize_size) |
1288 | target_flags |= MASK_ACCUMULATE_OUTGOING_ARGS; | |
623fe810 RH |
1289 | |
1290 | /* Figure out what ASM_GENERATE_INTERNAL_LABEL builds as a prefix. */ | |
1291 | { | |
1292 | char *p; | |
1293 | ASM_GENERATE_INTERNAL_LABEL (internal_label_prefix, "LX", 0); | |
1294 | p = strchr (internal_label_prefix, 'X'); | |
1295 | internal_label_prefix_len = p - internal_label_prefix; | |
1296 | *p = '\0'; | |
1297 | } | |
f5316dfe MM |
1298 | } |
1299 | \f | |
32b5b1aa | 1300 | void |
c6aded7c | 1301 | optimization_options (level, size) |
32b5b1aa | 1302 | int level; |
bb5177ac | 1303 | int size ATTRIBUTE_UNUSED; |
32b5b1aa | 1304 | { |
e9a25f70 JL |
1305 | /* For -O2 and beyond, turn off -fschedule-insns by default. It tends to |
1306 | make the problem with not enough registers even worse. */ | |
32b5b1aa SC |
1307 | #ifdef INSN_SCHEDULING |
1308 | if (level > 1) | |
1309 | flag_schedule_insns = 0; | |
1310 | #endif | |
53c17031 JH |
1311 | if (TARGET_64BIT && optimize >= 1) |
1312 | flag_omit_frame_pointer = 1; | |
1313 | if (TARGET_64BIT) | |
b932f770 JH |
1314 | { |
1315 | flag_pcc_struct_return = 0; | |
1316 | flag_asynchronous_unwind_tables = 1; | |
1317 | } | |
db01f480 JH |
1318 | if (profile_flag) |
1319 | flag_omit_frame_pointer = 0; | |
32b5b1aa | 1320 | } |
b08de47e | 1321 | \f |
91d231cb JM |
1322 | /* Table of valid machine attributes. */ |
1323 | const struct attribute_spec ix86_attribute_table[] = | |
b08de47e | 1324 | { |
91d231cb | 1325 | /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler } */ |
b08de47e MM |
1326 | /* Stdcall attribute says callee is responsible for popping arguments |
1327 | if they are not variable. */ | |
91d231cb JM |
1328 | { "stdcall", 0, 0, false, true, true, ix86_handle_cdecl_attribute }, |
1329 | /* Cdecl attribute says the callee is a normal C declaration */ | |
1330 | { "cdecl", 0, 0, false, true, true, ix86_handle_cdecl_attribute }, | |
b08de47e | 1331 | /* Regparm attribute specifies how many integer arguments are to be |
0f290768 | 1332 | passed in registers. */ |
91d231cb JM |
1333 | { "regparm", 1, 1, false, true, true, ix86_handle_regparm_attribute }, |
1334 | #ifdef TARGET_DLLIMPORT_DECL_ATTRIBUTES | |
3da1eb0b DS |
1335 | { "dllimport", 0, 0, false, false, false, ix86_handle_dll_attribute }, |
1336 | { "dllexport", 0, 0, false, false, false, ix86_handle_dll_attribute }, | |
1337 | { "shared", 0, 0, true, false, false, ix86_handle_shared_attribute }, | |
91d231cb JM |
1338 | #endif |
1339 | { NULL, 0, 0, false, false, false, NULL } | |
1340 | }; | |
1341 | ||
1342 | /* Handle a "cdecl" or "stdcall" attribute; | |
1343 | arguments as in struct attribute_spec.handler. */ | |
1344 | static tree | |
1345 | ix86_handle_cdecl_attribute (node, name, args, flags, no_add_attrs) | |
1346 | tree *node; | |
1347 | tree name; | |
1348 | tree args ATTRIBUTE_UNUSED; | |
1349 | int flags ATTRIBUTE_UNUSED; | |
1350 | bool *no_add_attrs; | |
1351 | { | |
1352 | if (TREE_CODE (*node) != FUNCTION_TYPE | |
1353 | && TREE_CODE (*node) != METHOD_TYPE | |
1354 | && TREE_CODE (*node) != FIELD_DECL | |
1355 | && TREE_CODE (*node) != TYPE_DECL) | |
b08de47e | 1356 | { |
91d231cb JM |
1357 | warning ("`%s' attribute only applies to functions", |
1358 | IDENTIFIER_POINTER (name)); | |
1359 | *no_add_attrs = true; | |
1360 | } | |
b08de47e | 1361 | |
91d231cb JM |
1362 | if (TARGET_64BIT) |
1363 | { | |
1364 | warning ("`%s' attribute ignored", IDENTIFIER_POINTER (name)); | |
1365 | *no_add_attrs = true; | |
1366 | } | |
b08de47e | 1367 | |
91d231cb JM |
1368 | return NULL_TREE; |
1369 | } | |
b08de47e | 1370 | |
91d231cb JM |
1371 | /* Handle a "regparm" attribute; |
1372 | arguments as in struct attribute_spec.handler. */ | |
1373 | static tree | |
1374 | ix86_handle_regparm_attribute (node, name, args, flags, no_add_attrs) | |
1375 | tree *node; | |
1376 | tree name; | |
1377 | tree args; | |
1378 | int flags ATTRIBUTE_UNUSED; | |
1379 | bool *no_add_attrs; | |
1380 | { | |
1381 | if (TREE_CODE (*node) != FUNCTION_TYPE | |
1382 | && TREE_CODE (*node) != METHOD_TYPE | |
1383 | && TREE_CODE (*node) != FIELD_DECL | |
1384 | && TREE_CODE (*node) != TYPE_DECL) | |
1385 | { | |
1386 | warning ("`%s' attribute only applies to functions", | |
1387 | IDENTIFIER_POINTER (name)); | |
1388 | *no_add_attrs = true; | |
1389 | } | |
1390 | else | |
1391 | { | |
1392 | tree cst; | |
b08de47e | 1393 | |
91d231cb JM |
1394 | cst = TREE_VALUE (args); |
1395 | if (TREE_CODE (cst) != INTEGER_CST) | |
1396 | { | |
1397 | warning ("`%s' attribute requires an integer constant argument", | |
1398 | IDENTIFIER_POINTER (name)); | |
1399 | *no_add_attrs = true; | |
1400 | } | |
1401 | else if (compare_tree_int (cst, REGPARM_MAX) > 0) | |
1402 | { | |
1403 | warning ("argument to `%s' attribute larger than %d", | |
1404 | IDENTIFIER_POINTER (name), REGPARM_MAX); | |
1405 | *no_add_attrs = true; | |
1406 | } | |
b08de47e MM |
1407 | } |
1408 | ||
91d231cb | 1409 | return NULL_TREE; |
b08de47e MM |
1410 | } |
1411 | ||
1412 | /* Return 0 if the attributes for two types are incompatible, 1 if they | |
1413 | are compatible, and 2 if they are nearly compatible (which causes a | |
1414 | warning to be generated). */ | |
1415 | ||
8d8e52be | 1416 | static int |
e075ae69 | 1417 | ix86_comp_type_attributes (type1, type2) |
afcfe58c MM |
1418 | tree type1; |
1419 | tree type2; | |
b08de47e | 1420 | { |
0f290768 | 1421 | /* Check for mismatch of non-default calling convention. */ |
27c38fbe | 1422 | const char *const rtdstr = TARGET_RTD ? "cdecl" : "stdcall"; |
afcfe58c MM |
1423 | |
1424 | if (TREE_CODE (type1) != FUNCTION_TYPE) | |
1425 | return 1; | |
1426 | ||
1427 | /* Check for mismatched return types (cdecl vs stdcall). */ | |
6093f019 RH |
1428 | if (!lookup_attribute (rtdstr, TYPE_ATTRIBUTES (type1)) |
1429 | != !lookup_attribute (rtdstr, TYPE_ATTRIBUTES (type2))) | |
afcfe58c | 1430 | return 0; |
b08de47e MM |
1431 | return 1; |
1432 | } | |
b08de47e MM |
1433 | \f |
1434 | /* Value is the number of bytes of arguments automatically | |
1435 | popped when returning from a subroutine call. | |
1436 | FUNDECL is the declaration node of the function (as a tree), | |
1437 | FUNTYPE is the data type of the function (as a tree), | |
1438 | or for a library call it is an identifier node for the subroutine name. | |
1439 | SIZE is the number of bytes of arguments passed on the stack. | |
1440 | ||
1441 | On the 80386, the RTD insn may be used to pop them if the number | |
1442 | of args is fixed, but if the number is variable then the caller | |
1443 | must pop them all. RTD can't be used for library calls now | |
1444 | because the library is compiled with the Unix compiler. | |
1445 | Use of RTD is a selectable option, since it is incompatible with | |
1446 | standard Unix calling sequences. If the option is not selected, | |
1447 | the caller must always pop the args. | |
1448 | ||
1449 | The attribute stdcall is equivalent to RTD on a per module basis. */ | |
1450 | ||
1451 | int | |
e075ae69 | 1452 | ix86_return_pops_args (fundecl, funtype, size) |
b08de47e MM |
1453 | tree fundecl; |
1454 | tree funtype; | |
1455 | int size; | |
79325812 | 1456 | { |
3345ee7d | 1457 | int rtd = TARGET_RTD && (!fundecl || TREE_CODE (fundecl) != IDENTIFIER_NODE); |
b08de47e | 1458 | |
0f290768 | 1459 | /* Cdecl functions override -mrtd, and never pop the stack. */ |
e9a25f70 | 1460 | if (! lookup_attribute ("cdecl", TYPE_ATTRIBUTES (funtype))) { |
79325812 | 1461 | |
0f290768 | 1462 | /* Stdcall functions will pop the stack if not variable args. */ |
698cdd84 SC |
1463 | if (lookup_attribute ("stdcall", TYPE_ATTRIBUTES (funtype))) |
1464 | rtd = 1; | |
79325812 | 1465 | |
698cdd84 SC |
1466 | if (rtd |
1467 | && (TYPE_ARG_TYPES (funtype) == NULL_TREE | |
e9a25f70 JL |
1468 | || (TREE_VALUE (tree_last (TYPE_ARG_TYPES (funtype))) |
1469 | == void_type_node))) | |
698cdd84 SC |
1470 | return size; |
1471 | } | |
79325812 | 1472 | |
232b8f52 | 1473 | /* Lose any fake structure return argument if it is passed on the stack. */ |
0d7d98ee JH |
1474 | if (aggregate_value_p (TREE_TYPE (funtype)) |
1475 | && !TARGET_64BIT) | |
232b8f52 JJ |
1476 | { |
1477 | int nregs = ix86_regparm; | |
79325812 | 1478 | |
232b8f52 JJ |
1479 | if (funtype) |
1480 | { | |
1481 | tree attr = lookup_attribute ("regparm", TYPE_ATTRIBUTES (funtype)); | |
1482 | ||
1483 | if (attr) | |
1484 | nregs = TREE_INT_CST_LOW (TREE_VALUE (TREE_VALUE (attr))); | |
1485 | } | |
1486 | ||
1487 | if (!nregs) | |
1488 | return GET_MODE_SIZE (Pmode); | |
1489 | } | |
1490 | ||
1491 | return 0; | |
b08de47e | 1492 | } |
b08de47e MM |
1493 | \f |
1494 | /* Argument support functions. */ | |
1495 | ||
53c17031 JH |
1496 | /* Return true when register may be used to pass function parameters. */ |
1497 | bool | |
1498 | ix86_function_arg_regno_p (regno) | |
1499 | int regno; | |
1500 | { | |
1501 | int i; | |
1502 | if (!TARGET_64BIT) | |
0333394e JJ |
1503 | return (regno < REGPARM_MAX |
1504 | || (TARGET_SSE && SSE_REGNO_P (regno) && !fixed_regs[regno])); | |
53c17031 JH |
1505 | if (SSE_REGNO_P (regno) && TARGET_SSE) |
1506 | return true; | |
1507 | /* RAX is used as hidden argument to va_arg functions. */ | |
1508 | if (!regno) | |
1509 | return true; | |
1510 | for (i = 0; i < REGPARM_MAX; i++) | |
1511 | if (regno == x86_64_int_parameter_registers[i]) | |
1512 | return true; | |
1513 | return false; | |
1514 | } | |
1515 | ||
b08de47e MM |
1516 | /* Initialize a variable CUM of type CUMULATIVE_ARGS |
1517 | for a call to a function whose data type is FNTYPE. | |
1518 | For a library call, FNTYPE is 0. */ | |
1519 | ||
1520 | void | |
1521 | init_cumulative_args (cum, fntype, libname) | |
e9a25f70 | 1522 | CUMULATIVE_ARGS *cum; /* Argument info to initialize */ |
b08de47e MM |
1523 | tree fntype; /* tree ptr for function decl */ |
1524 | rtx libname; /* SYMBOL_REF of library name or 0 */ | |
1525 | { | |
1526 | static CUMULATIVE_ARGS zero_cum; | |
1527 | tree param, next_param; | |
1528 | ||
1529 | if (TARGET_DEBUG_ARG) | |
1530 | { | |
1531 | fprintf (stderr, "\ninit_cumulative_args ("); | |
1532 | if (fntype) | |
e9a25f70 JL |
1533 | fprintf (stderr, "fntype code = %s, ret code = %s", |
1534 | tree_code_name[(int) TREE_CODE (fntype)], | |
1535 | tree_code_name[(int) TREE_CODE (TREE_TYPE (fntype))]); | |
b08de47e MM |
1536 | else |
1537 | fprintf (stderr, "no fntype"); | |
1538 | ||
1539 | if (libname) | |
1540 | fprintf (stderr, ", libname = %s", XSTR (libname, 0)); | |
1541 | } | |
1542 | ||
1543 | *cum = zero_cum; | |
1544 | ||
1545 | /* Set up the number of registers to use for passing arguments. */ | |
e075ae69 | 1546 | cum->nregs = ix86_regparm; |
53c17031 JH |
1547 | cum->sse_nregs = SSE_REGPARM_MAX; |
1548 | if (fntype && !TARGET_64BIT) | |
b08de47e MM |
1549 | { |
1550 | tree attr = lookup_attribute ("regparm", TYPE_ATTRIBUTES (fntype)); | |
e9a25f70 | 1551 | |
b08de47e MM |
1552 | if (attr) |
1553 | cum->nregs = TREE_INT_CST_LOW (TREE_VALUE (TREE_VALUE (attr))); | |
1554 | } | |
53c17031 | 1555 | cum->maybe_vaarg = false; |
b08de47e MM |
1556 | |
1557 | /* Determine if this function has variable arguments. This is | |
1558 | indicated by the last argument being 'void_type_mode' if there | |
1559 | are no variable arguments. If there are variable arguments, then | |
1560 | we won't pass anything in registers */ | |
1561 | ||
1562 | if (cum->nregs) | |
1563 | { | |
1564 | for (param = (fntype) ? TYPE_ARG_TYPES (fntype) : 0; | |
e9a25f70 | 1565 | param != 0; param = next_param) |
b08de47e MM |
1566 | { |
1567 | next_param = TREE_CHAIN (param); | |
e9a25f70 | 1568 | if (next_param == 0 && TREE_VALUE (param) != void_type_node) |
53c17031 JH |
1569 | { |
1570 | if (!TARGET_64BIT) | |
1571 | cum->nregs = 0; | |
1572 | cum->maybe_vaarg = true; | |
1573 | } | |
b08de47e MM |
1574 | } |
1575 | } | |
53c17031 JH |
1576 | if ((!fntype && !libname) |
1577 | || (fntype && !TYPE_ARG_TYPES (fntype))) | |
1578 | cum->maybe_vaarg = 1; | |
b08de47e MM |
1579 | |
1580 | if (TARGET_DEBUG_ARG) | |
1581 | fprintf (stderr, ", nregs=%d )\n", cum->nregs); | |
1582 | ||
1583 | return; | |
1584 | } | |
1585 | ||
53c17031 | 1586 | /* x86-64 register passing impleemntation. See x86-64 ABI for details. Goal |
f710504c | 1587 | of this code is to classify each 8bytes of incoming argument by the register |
53c17031 JH |
1588 | class and assign registers accordingly. */ |
1589 | ||
1590 | /* Return the union class of CLASS1 and CLASS2. | |
1591 | See the x86-64 PS ABI for details. */ | |
1592 | ||
1593 | static enum x86_64_reg_class | |
1594 | merge_classes (class1, class2) | |
1595 | enum x86_64_reg_class class1, class2; | |
1596 | { | |
1597 | /* Rule #1: If both classes are equal, this is the resulting class. */ | |
1598 | if (class1 == class2) | |
1599 | return class1; | |
1600 | ||
1601 | /* Rule #2: If one of the classes is NO_CLASS, the resulting class is | |
1602 | the other class. */ | |
1603 | if (class1 == X86_64_NO_CLASS) | |
1604 | return class2; | |
1605 | if (class2 == X86_64_NO_CLASS) | |
1606 | return class1; | |
1607 | ||
1608 | /* Rule #3: If one of the classes is MEMORY, the result is MEMORY. */ | |
1609 | if (class1 == X86_64_MEMORY_CLASS || class2 == X86_64_MEMORY_CLASS) | |
1610 | return X86_64_MEMORY_CLASS; | |
1611 | ||
1612 | /* Rule #4: If one of the classes is INTEGER, the result is INTEGER. */ | |
1613 | if ((class1 == X86_64_INTEGERSI_CLASS && class2 == X86_64_SSESF_CLASS) | |
1614 | || (class2 == X86_64_INTEGERSI_CLASS && class1 == X86_64_SSESF_CLASS)) | |
1615 | return X86_64_INTEGERSI_CLASS; | |
1616 | if (class1 == X86_64_INTEGER_CLASS || class1 == X86_64_INTEGERSI_CLASS | |
1617 | || class2 == X86_64_INTEGER_CLASS || class2 == X86_64_INTEGERSI_CLASS) | |
1618 | return X86_64_INTEGER_CLASS; | |
1619 | ||
1620 | /* Rule #5: If one of the classes is X87 or X87UP class, MEMORY is used. */ | |
1621 | if (class1 == X86_64_X87_CLASS || class1 == X86_64_X87UP_CLASS | |
1622 | || class2 == X86_64_X87_CLASS || class2 == X86_64_X87UP_CLASS) | |
1623 | return X86_64_MEMORY_CLASS; | |
1624 | ||
1625 | /* Rule #6: Otherwise class SSE is used. */ | |
1626 | return X86_64_SSE_CLASS; | |
1627 | } | |
1628 | ||
1629 | /* Classify the argument of type TYPE and mode MODE. | |
1630 | CLASSES will be filled by the register class used to pass each word | |
1631 | of the operand. The number of words is returned. In case the parameter | |
1632 | should be passed in memory, 0 is returned. As a special case for zero | |
1633 | sized containers, classes[0] will be NO_CLASS and 1 is returned. | |
1634 | ||
1635 | BIT_OFFSET is used internally for handling records and specifies offset | |
1636 | of the offset in bits modulo 256 to avoid overflow cases. | |
1637 | ||
1638 | See the x86-64 PS ABI for details. | |
1639 | */ | |
1640 | ||
1641 | static int | |
1642 | classify_argument (mode, type, classes, bit_offset) | |
1643 | enum machine_mode mode; | |
1644 | tree type; | |
1645 | enum x86_64_reg_class classes[MAX_CLASSES]; | |
1646 | int bit_offset; | |
1647 | { | |
1648 | int bytes = | |
1649 | (mode == BLKmode) ? int_size_in_bytes (type) : (int) GET_MODE_SIZE (mode); | |
23327dae | 1650 | int words = (bytes + (bit_offset % 64) / 8 + UNITS_PER_WORD - 1) / UNITS_PER_WORD; |
53c17031 | 1651 | |
c60ee6f5 JH |
1652 | /* Variable sized entities are always passed/returned in memory. */ |
1653 | if (bytes < 0) | |
1654 | return 0; | |
1655 | ||
53c17031 JH |
1656 | if (type && AGGREGATE_TYPE_P (type)) |
1657 | { | |
1658 | int i; | |
1659 | tree field; | |
1660 | enum x86_64_reg_class subclasses[MAX_CLASSES]; | |
1661 | ||
1662 | /* On x86-64 we pass structures larger than 16 bytes on the stack. */ | |
1663 | if (bytes > 16) | |
1664 | return 0; | |
1665 | ||
1666 | for (i = 0; i < words; i++) | |
1667 | classes[i] = X86_64_NO_CLASS; | |
1668 | ||
1669 | /* Zero sized arrays or structures are NO_CLASS. We return 0 to | |
1670 | signalize memory class, so handle it as special case. */ | |
1671 | if (!words) | |
1672 | { | |
1673 | classes[0] = X86_64_NO_CLASS; | |
1674 | return 1; | |
1675 | } | |
1676 | ||
1677 | /* Classify each field of record and merge classes. */ | |
1678 | if (TREE_CODE (type) == RECORD_TYPE) | |
1679 | { | |
91ea38f9 JH |
1680 | /* For classes first merge in the field of the subclasses. */ |
1681 | if (TYPE_BINFO (type) != NULL && TYPE_BINFO_BASETYPES (type) != NULL) | |
1682 | { | |
1683 | tree bases = TYPE_BINFO_BASETYPES (type); | |
1684 | int n_bases = TREE_VEC_LENGTH (bases); | |
1685 | int i; | |
1686 | ||
1687 | for (i = 0; i < n_bases; ++i) | |
1688 | { | |
1689 | tree binfo = TREE_VEC_ELT (bases, i); | |
1690 | int num; | |
1691 | int offset = tree_low_cst (BINFO_OFFSET (binfo), 0) * 8; | |
1692 | tree type = BINFO_TYPE (binfo); | |
1693 | ||
1694 | num = classify_argument (TYPE_MODE (type), | |
1695 | type, subclasses, | |
1696 | (offset + bit_offset) % 256); | |
1697 | if (!num) | |
1698 | return 0; | |
1699 | for (i = 0; i < num; i++) | |
1700 | { | |
db01f480 | 1701 | int pos = (offset + (bit_offset % 64)) / 8 / 8; |
91ea38f9 JH |
1702 | classes[i + pos] = |
1703 | merge_classes (subclasses[i], classes[i + pos]); | |
1704 | } | |
1705 | } | |
1706 | } | |
1707 | /* And now merge the fields of structure. */ | |
53c17031 JH |
1708 | for (field = TYPE_FIELDS (type); field; field = TREE_CHAIN (field)) |
1709 | { | |
1710 | if (TREE_CODE (field) == FIELD_DECL) | |
1711 | { | |
1712 | int num; | |
1713 | ||
1714 | /* Bitfields are always classified as integer. Handle them | |
1715 | early, since later code would consider them to be | |
1716 | misaligned integers. */ | |
1717 | if (DECL_BIT_FIELD (field)) | |
1718 | { | |
1719 | for (i = int_bit_position (field) / 8 / 8; | |
1720 | i < (int_bit_position (field) | |
1721 | + tree_low_cst (DECL_SIZE (field), 0) | |
1722 | + 63) / 8 / 8; i++) | |
1723 | classes[i] = | |
1724 | merge_classes (X86_64_INTEGER_CLASS, | |
1725 | classes[i]); | |
1726 | } | |
1727 | else | |
1728 | { | |
1729 | num = classify_argument (TYPE_MODE (TREE_TYPE (field)), | |
1730 | TREE_TYPE (field), subclasses, | |
1731 | (int_bit_position (field) | |
1732 | + bit_offset) % 256); | |
1733 | if (!num) | |
1734 | return 0; | |
1735 | for (i = 0; i < num; i++) | |
1736 | { | |
1737 | int pos = | |
db01f480 | 1738 | (int_bit_position (field) + (bit_offset % 64)) / 8 / 8; |
53c17031 JH |
1739 | classes[i + pos] = |
1740 | merge_classes (subclasses[i], classes[i + pos]); | |
1741 | } | |
1742 | } | |
1743 | } | |
1744 | } | |
1745 | } | |
1746 | /* Arrays are handled as small records. */ | |
1747 | else if (TREE_CODE (type) == ARRAY_TYPE) | |
1748 | { | |
1749 | int num; | |
1750 | num = classify_argument (TYPE_MODE (TREE_TYPE (type)), | |
1751 | TREE_TYPE (type), subclasses, bit_offset); | |
1752 | if (!num) | |
1753 | return 0; | |
1754 | ||
1755 | /* The partial classes are now full classes. */ | |
1756 | if (subclasses[0] == X86_64_SSESF_CLASS && bytes != 4) | |
1757 | subclasses[0] = X86_64_SSE_CLASS; | |
1758 | if (subclasses[0] == X86_64_INTEGERSI_CLASS && bytes != 4) | |
1759 | subclasses[0] = X86_64_INTEGER_CLASS; | |
1760 | ||
1761 | for (i = 0; i < words; i++) | |
1762 | classes[i] = subclasses[i % num]; | |
1763 | } | |
1764 | /* Unions are similar to RECORD_TYPE but offset is always 0. */ | |
e4dbaed5 AS |
1765 | else if (TREE_CODE (type) == UNION_TYPE |
1766 | || TREE_CODE (type) == QUAL_UNION_TYPE) | |
53c17031 | 1767 | { |
91ea38f9 JH |
1768 | /* For classes first merge in the field of the subclasses. */ |
1769 | if (TYPE_BINFO (type) != NULL && TYPE_BINFO_BASETYPES (type) != NULL) | |
1770 | { | |
1771 | tree bases = TYPE_BINFO_BASETYPES (type); | |
1772 | int n_bases = TREE_VEC_LENGTH (bases); | |
1773 | int i; | |
1774 | ||
1775 | for (i = 0; i < n_bases; ++i) | |
1776 | { | |
1777 | tree binfo = TREE_VEC_ELT (bases, i); | |
1778 | int num; | |
1779 | int offset = tree_low_cst (BINFO_OFFSET (binfo), 0) * 8; | |
1780 | tree type = BINFO_TYPE (binfo); | |
1781 | ||
1782 | num = classify_argument (TYPE_MODE (type), | |
1783 | type, subclasses, | |
db01f480 | 1784 | (offset + (bit_offset % 64)) % 256); |
91ea38f9 JH |
1785 | if (!num) |
1786 | return 0; | |
1787 | for (i = 0; i < num; i++) | |
1788 | { | |
c16576e6 | 1789 | int pos = (offset + (bit_offset % 64)) / 8 / 8; |
91ea38f9 JH |
1790 | classes[i + pos] = |
1791 | merge_classes (subclasses[i], classes[i + pos]); | |
1792 | } | |
1793 | } | |
1794 | } | |
53c17031 JH |
1795 | for (field = TYPE_FIELDS (type); field; field = TREE_CHAIN (field)) |
1796 | { | |
1797 | if (TREE_CODE (field) == FIELD_DECL) | |
1798 | { | |
1799 | int num; | |
1800 | num = classify_argument (TYPE_MODE (TREE_TYPE (field)), | |
1801 | TREE_TYPE (field), subclasses, | |
1802 | bit_offset); | |
1803 | if (!num) | |
1804 | return 0; | |
1805 | for (i = 0; i < num; i++) | |
1806 | classes[i] = merge_classes (subclasses[i], classes[i]); | |
1807 | } | |
1808 | } | |
1809 | } | |
1810 | else | |
1811 | abort (); | |
1812 | ||
1813 | /* Final merger cleanup. */ | |
1814 | for (i = 0; i < words; i++) | |
1815 | { | |
1816 | /* If one class is MEMORY, everything should be passed in | |
1817 | memory. */ | |
1818 | if (classes[i] == X86_64_MEMORY_CLASS) | |
1819 | return 0; | |
1820 | ||
d6a7951f | 1821 | /* The X86_64_SSEUP_CLASS should be always preceded by |
53c17031 JH |
1822 | X86_64_SSE_CLASS. */ |
1823 | if (classes[i] == X86_64_SSEUP_CLASS | |
1824 | && (i == 0 || classes[i - 1] != X86_64_SSE_CLASS)) | |
1825 | classes[i] = X86_64_SSE_CLASS; | |
1826 | ||
d6a7951f | 1827 | /* X86_64_X87UP_CLASS should be preceded by X86_64_X87_CLASS. */ |
53c17031 JH |
1828 | if (classes[i] == X86_64_X87UP_CLASS |
1829 | && (i == 0 || classes[i - 1] != X86_64_X87_CLASS)) | |
1830 | classes[i] = X86_64_SSE_CLASS; | |
1831 | } | |
1832 | return words; | |
1833 | } | |
1834 | ||
1835 | /* Compute alignment needed. We align all types to natural boundaries with | |
1836 | exception of XFmode that is aligned to 64bits. */ | |
1837 | if (mode != VOIDmode && mode != BLKmode) | |
1838 | { | |
1839 | int mode_alignment = GET_MODE_BITSIZE (mode); | |
1840 | ||
1841 | if (mode == XFmode) | |
1842 | mode_alignment = 128; | |
1843 | else if (mode == XCmode) | |
1844 | mode_alignment = 256; | |
f5143c46 | 1845 | /* Misaligned fields are always returned in memory. */ |
53c17031 JH |
1846 | if (bit_offset % mode_alignment) |
1847 | return 0; | |
1848 | } | |
1849 | ||
1850 | /* Classification of atomic types. */ | |
1851 | switch (mode) | |
1852 | { | |
1853 | case DImode: | |
1854 | case SImode: | |
1855 | case HImode: | |
1856 | case QImode: | |
1857 | case CSImode: | |
1858 | case CHImode: | |
1859 | case CQImode: | |
1860 | if (bit_offset + GET_MODE_BITSIZE (mode) <= 32) | |
1861 | classes[0] = X86_64_INTEGERSI_CLASS; | |
1862 | else | |
1863 | classes[0] = X86_64_INTEGER_CLASS; | |
1864 | return 1; | |
1865 | case CDImode: | |
1866 | case TImode: | |
1867 | classes[0] = classes[1] = X86_64_INTEGER_CLASS; | |
1868 | return 2; | |
1869 | case CTImode: | |
1870 | classes[0] = classes[1] = X86_64_INTEGER_CLASS; | |
1871 | classes[2] = classes[3] = X86_64_INTEGER_CLASS; | |
1872 | return 4; | |
1873 | case SFmode: | |
1874 | if (!(bit_offset % 64)) | |
1875 | classes[0] = X86_64_SSESF_CLASS; | |
1876 | else | |
1877 | classes[0] = X86_64_SSE_CLASS; | |
1878 | return 1; | |
1879 | case DFmode: | |
1880 | classes[0] = X86_64_SSEDF_CLASS; | |
1881 | return 1; | |
1882 | case TFmode: | |
1883 | classes[0] = X86_64_X87_CLASS; | |
1884 | classes[1] = X86_64_X87UP_CLASS; | |
1885 | return 2; | |
1886 | case TCmode: | |
1887 | classes[0] = X86_64_X87_CLASS; | |
1888 | classes[1] = X86_64_X87UP_CLASS; | |
1889 | classes[2] = X86_64_X87_CLASS; | |
1890 | classes[3] = X86_64_X87UP_CLASS; | |
1891 | return 4; | |
1892 | case DCmode: | |
1893 | classes[0] = X86_64_SSEDF_CLASS; | |
1894 | classes[1] = X86_64_SSEDF_CLASS; | |
1895 | return 2; | |
1896 | case SCmode: | |
1897 | classes[0] = X86_64_SSE_CLASS; | |
1898 | return 1; | |
e95d6b23 JH |
1899 | case V4SFmode: |
1900 | case V4SImode: | |
495333a6 JH |
1901 | case V16QImode: |
1902 | case V8HImode: | |
1903 | case V2DFmode: | |
1904 | case V2DImode: | |
e95d6b23 JH |
1905 | classes[0] = X86_64_SSE_CLASS; |
1906 | classes[1] = X86_64_SSEUP_CLASS; | |
1907 | return 2; | |
1908 | case V2SFmode: | |
1909 | case V2SImode: | |
1910 | case V4HImode: | |
1911 | case V8QImode: | |
1912 | classes[0] = X86_64_SSE_CLASS; | |
1913 | return 1; | |
53c17031 | 1914 | case BLKmode: |
e95d6b23 | 1915 | case VOIDmode: |
53c17031 JH |
1916 | return 0; |
1917 | default: | |
1918 | abort (); | |
1919 | } | |
1920 | } | |
1921 | ||
1922 | /* Examine the argument and return set number of register required in each | |
f5143c46 | 1923 | class. Return 0 iff parameter should be passed in memory. */ |
53c17031 JH |
1924 | static int |
1925 | examine_argument (mode, type, in_return, int_nregs, sse_nregs) | |
1926 | enum machine_mode mode; | |
1927 | tree type; | |
1928 | int *int_nregs, *sse_nregs; | |
1929 | int in_return; | |
1930 | { | |
1931 | enum x86_64_reg_class class[MAX_CLASSES]; | |
1932 | int n = classify_argument (mode, type, class, 0); | |
1933 | ||
1934 | *int_nregs = 0; | |
1935 | *sse_nregs = 0; | |
1936 | if (!n) | |
1937 | return 0; | |
1938 | for (n--; n >= 0; n--) | |
1939 | switch (class[n]) | |
1940 | { | |
1941 | case X86_64_INTEGER_CLASS: | |
1942 | case X86_64_INTEGERSI_CLASS: | |
1943 | (*int_nregs)++; | |
1944 | break; | |
1945 | case X86_64_SSE_CLASS: | |
1946 | case X86_64_SSESF_CLASS: | |
1947 | case X86_64_SSEDF_CLASS: | |
1948 | (*sse_nregs)++; | |
1949 | break; | |
1950 | case X86_64_NO_CLASS: | |
1951 | case X86_64_SSEUP_CLASS: | |
1952 | break; | |
1953 | case X86_64_X87_CLASS: | |
1954 | case X86_64_X87UP_CLASS: | |
1955 | if (!in_return) | |
1956 | return 0; | |
1957 | break; | |
1958 | case X86_64_MEMORY_CLASS: | |
1959 | abort (); | |
1960 | } | |
1961 | return 1; | |
1962 | } | |
1963 | /* Construct container for the argument used by GCC interface. See | |
1964 | FUNCTION_ARG for the detailed description. */ | |
1965 | static rtx | |
1966 | construct_container (mode, type, in_return, nintregs, nsseregs, intreg, sse_regno) | |
1967 | enum machine_mode mode; | |
1968 | tree type; | |
1969 | int in_return; | |
1970 | int nintregs, nsseregs; | |
07933f72 GS |
1971 | const int * intreg; |
1972 | int sse_regno; | |
53c17031 JH |
1973 | { |
1974 | enum machine_mode tmpmode; | |
1975 | int bytes = | |
1976 | (mode == BLKmode) ? int_size_in_bytes (type) : (int) GET_MODE_SIZE (mode); | |
1977 | enum x86_64_reg_class class[MAX_CLASSES]; | |
1978 | int n; | |
1979 | int i; | |
1980 | int nexps = 0; | |
1981 | int needed_sseregs, needed_intregs; | |
1982 | rtx exp[MAX_CLASSES]; | |
1983 | rtx ret; | |
1984 | ||
1985 | n = classify_argument (mode, type, class, 0); | |
1986 | if (TARGET_DEBUG_ARG) | |
1987 | { | |
1988 | if (!n) | |
1989 | fprintf (stderr, "Memory class\n"); | |
1990 | else | |
1991 | { | |
1992 | fprintf (stderr, "Classes:"); | |
1993 | for (i = 0; i < n; i++) | |
1994 | { | |
1995 | fprintf (stderr, " %s", x86_64_reg_class_name[class[i]]); | |
1996 | } | |
1997 | fprintf (stderr, "\n"); | |
1998 | } | |
1999 | } | |
2000 | if (!n) | |
2001 | return NULL; | |
2002 | if (!examine_argument (mode, type, in_return, &needed_intregs, &needed_sseregs)) | |
2003 | return NULL; | |
2004 | if (needed_intregs > nintregs || needed_sseregs > nsseregs) | |
2005 | return NULL; | |
2006 | ||
2007 | /* First construct simple cases. Avoid SCmode, since we want to use | |
2008 | single register to pass this type. */ | |
2009 | if (n == 1 && mode != SCmode) | |
2010 | switch (class[0]) | |
2011 | { | |
2012 | case X86_64_INTEGER_CLASS: | |
2013 | case X86_64_INTEGERSI_CLASS: | |
2014 | return gen_rtx_REG (mode, intreg[0]); | |
2015 | case X86_64_SSE_CLASS: | |
2016 | case X86_64_SSESF_CLASS: | |
2017 | case X86_64_SSEDF_CLASS: | |
2018 | return gen_rtx_REG (mode, SSE_REGNO (sse_regno)); | |
2019 | case X86_64_X87_CLASS: | |
2020 | return gen_rtx_REG (mode, FIRST_STACK_REG); | |
2021 | case X86_64_NO_CLASS: | |
2022 | /* Zero sized array, struct or class. */ | |
2023 | return NULL; | |
2024 | default: | |
2025 | abort (); | |
2026 | } | |
2027 | if (n == 2 && class[0] == X86_64_SSE_CLASS && class[1] == X86_64_SSEUP_CLASS) | |
e95d6b23 | 2028 | return gen_rtx_REG (mode, SSE_REGNO (sse_regno)); |
53c17031 JH |
2029 | if (n == 2 |
2030 | && class[0] == X86_64_X87_CLASS && class[1] == X86_64_X87UP_CLASS) | |
2031 | return gen_rtx_REG (TFmode, FIRST_STACK_REG); | |
2032 | if (n == 2 && class[0] == X86_64_INTEGER_CLASS | |
2033 | && class[1] == X86_64_INTEGER_CLASS | |
2034 | && (mode == CDImode || mode == TImode) | |
2035 | && intreg[0] + 1 == intreg[1]) | |
2036 | return gen_rtx_REG (mode, intreg[0]); | |
2037 | if (n == 4 | |
2038 | && class[0] == X86_64_X87_CLASS && class[1] == X86_64_X87UP_CLASS | |
2039 | && class[2] == X86_64_X87_CLASS && class[3] == X86_64_X87UP_CLASS) | |
2040 | return gen_rtx_REG (TCmode, FIRST_STACK_REG); | |
2041 | ||
2042 | /* Otherwise figure out the entries of the PARALLEL. */ | |
2043 | for (i = 0; i < n; i++) | |
2044 | { | |
2045 | switch (class[i]) | |
2046 | { | |
2047 | case X86_64_NO_CLASS: | |
2048 | break; | |
2049 | case X86_64_INTEGER_CLASS: | |
2050 | case X86_64_INTEGERSI_CLASS: | |
2051 | /* Merge TImodes on aligned occassions here too. */ | |
2052 | if (i * 8 + 8 > bytes) | |
2053 | tmpmode = mode_for_size ((bytes - i * 8) * BITS_PER_UNIT, MODE_INT, 0); | |
2054 | else if (class[i] == X86_64_INTEGERSI_CLASS) | |
2055 | tmpmode = SImode; | |
2056 | else | |
2057 | tmpmode = DImode; | |
2058 | /* We've requested 24 bytes we don't have mode for. Use DImode. */ | |
2059 | if (tmpmode == BLKmode) | |
2060 | tmpmode = DImode; | |
2061 | exp [nexps++] = gen_rtx_EXPR_LIST (VOIDmode, | |
2062 | gen_rtx_REG (tmpmode, *intreg), | |
2063 | GEN_INT (i*8)); | |
2064 | intreg++; | |
2065 | break; | |
2066 | case X86_64_SSESF_CLASS: | |
2067 | exp [nexps++] = gen_rtx_EXPR_LIST (VOIDmode, | |
2068 | gen_rtx_REG (SFmode, | |
2069 | SSE_REGNO (sse_regno)), | |
2070 | GEN_INT (i*8)); | |
2071 | sse_regno++; | |
2072 | break; | |
2073 | case X86_64_SSEDF_CLASS: | |
2074 | exp [nexps++] = gen_rtx_EXPR_LIST (VOIDmode, | |
2075 | gen_rtx_REG (DFmode, | |
2076 | SSE_REGNO (sse_regno)), | |
2077 | GEN_INT (i*8)); | |
2078 | sse_regno++; | |
2079 | break; | |
2080 | case X86_64_SSE_CLASS: | |
2081 | if (i < n && class[i + 1] == X86_64_SSEUP_CLASS) | |
2082 | tmpmode = TImode, i++; | |
2083 | else | |
2084 | tmpmode = DImode; | |
2085 | exp [nexps++] = gen_rtx_EXPR_LIST (VOIDmode, | |
2086 | gen_rtx_REG (tmpmode, | |
2087 | SSE_REGNO (sse_regno)), | |
2088 | GEN_INT (i*8)); | |
2089 | sse_regno++; | |
2090 | break; | |
2091 | default: | |
2092 | abort (); | |
2093 | } | |
2094 | } | |
2095 | ret = gen_rtx_PARALLEL (mode, rtvec_alloc (nexps)); | |
2096 | for (i = 0; i < nexps; i++) | |
2097 | XVECEXP (ret, 0, i) = exp [i]; | |
2098 | return ret; | |
2099 | } | |
2100 | ||
b08de47e MM |
2101 | /* Update the data in CUM to advance over an argument |
2102 | of mode MODE and data type TYPE. | |
2103 | (TYPE is null for libcalls where that information may not be available.) */ | |
2104 | ||
2105 | void | |
2106 | function_arg_advance (cum, mode, type, named) | |
2107 | CUMULATIVE_ARGS *cum; /* current arg information */ | |
2108 | enum machine_mode mode; /* current arg mode */ | |
2109 | tree type; /* type of the argument or 0 if lib support */ | |
2110 | int named; /* whether or not the argument was named */ | |
2111 | { | |
5ac9118e KG |
2112 | int bytes = |
2113 | (mode == BLKmode) ? int_size_in_bytes (type) : (int) GET_MODE_SIZE (mode); | |
b08de47e MM |
2114 | int words = (bytes + UNITS_PER_WORD - 1) / UNITS_PER_WORD; |
2115 | ||
2116 | if (TARGET_DEBUG_ARG) | |
2117 | fprintf (stderr, | |
e9a25f70 | 2118 | "function_adv (sz=%d, wds=%2d, nregs=%d, mode=%s, named=%d)\n\n", |
b08de47e | 2119 | words, cum->words, cum->nregs, GET_MODE_NAME (mode), named); |
53c17031 | 2120 | if (TARGET_64BIT) |
b08de47e | 2121 | { |
53c17031 JH |
2122 | int int_nregs, sse_nregs; |
2123 | if (!examine_argument (mode, type, 0, &int_nregs, &sse_nregs)) | |
2124 | cum->words += words; | |
2125 | else if (sse_nregs <= cum->sse_nregs && int_nregs <= cum->nregs) | |
82a127a9 | 2126 | { |
53c17031 JH |
2127 | cum->nregs -= int_nregs; |
2128 | cum->sse_nregs -= sse_nregs; | |
2129 | cum->regno += int_nregs; | |
2130 | cum->sse_regno += sse_nregs; | |
82a127a9 | 2131 | } |
53c17031 JH |
2132 | else |
2133 | cum->words += words; | |
b08de47e | 2134 | } |
a4f31c00 | 2135 | else |
82a127a9 | 2136 | { |
53c17031 JH |
2137 | if (TARGET_SSE && mode == TImode) |
2138 | { | |
2139 | cum->sse_words += words; | |
2140 | cum->sse_nregs -= 1; | |
2141 | cum->sse_regno += 1; | |
2142 | if (cum->sse_nregs <= 0) | |
2143 | { | |
2144 | cum->sse_nregs = 0; | |
2145 | cum->sse_regno = 0; | |
2146 | } | |
2147 | } | |
2148 | else | |
82a127a9 | 2149 | { |
53c17031 JH |
2150 | cum->words += words; |
2151 | cum->nregs -= words; | |
2152 | cum->regno += words; | |
2153 | ||
2154 | if (cum->nregs <= 0) | |
2155 | { | |
2156 | cum->nregs = 0; | |
2157 | cum->regno = 0; | |
2158 | } | |
82a127a9 CM |
2159 | } |
2160 | } | |
b08de47e MM |
2161 | return; |
2162 | } | |
2163 | ||
2164 | /* Define where to put the arguments to a function. | |
2165 | Value is zero to push the argument on the stack, | |
2166 | or a hard register in which to store the argument. | |
2167 | ||
2168 | MODE is the argument's machine mode. | |
2169 | TYPE is the data type of the argument (as a tree). | |
2170 | This is null for libcalls where that information may | |
2171 | not be available. | |
2172 | CUM is a variable of type CUMULATIVE_ARGS which gives info about | |
2173 | the preceding args and about the function being called. | |
2174 | NAMED is nonzero if this argument is a named parameter | |
2175 | (otherwise it is an extra parameter matching an ellipsis). */ | |
2176 | ||
07933f72 | 2177 | rtx |
b08de47e MM |
2178 | function_arg (cum, mode, type, named) |
2179 | CUMULATIVE_ARGS *cum; /* current arg information */ | |
2180 | enum machine_mode mode; /* current arg mode */ | |
2181 | tree type; /* type of the argument or 0 if lib support */ | |
2182 | int named; /* != 0 for normal args, == 0 for ... args */ | |
2183 | { | |
2184 | rtx ret = NULL_RTX; | |
5ac9118e KG |
2185 | int bytes = |
2186 | (mode == BLKmode) ? int_size_in_bytes (type) : (int) GET_MODE_SIZE (mode); | |
b08de47e MM |
2187 | int words = (bytes + UNITS_PER_WORD - 1) / UNITS_PER_WORD; |
2188 | ||
53c17031 JH |
2189 | /* Handle an hidden AL argument containing number of registers for varargs |
2190 | x86-64 functions. For i386 ABI just return constm1_rtx to avoid | |
2191 | any AL settings. */ | |
32ee7d1d | 2192 | if (mode == VOIDmode) |
b08de47e | 2193 | { |
53c17031 JH |
2194 | if (TARGET_64BIT) |
2195 | return GEN_INT (cum->maybe_vaarg | |
2196 | ? (cum->sse_nregs < 0 | |
2197 | ? SSE_REGPARM_MAX | |
2198 | : cum->sse_regno) | |
2199 | : -1); | |
2200 | else | |
2201 | return constm1_rtx; | |
b08de47e | 2202 | } |
53c17031 JH |
2203 | if (TARGET_64BIT) |
2204 | ret = construct_container (mode, type, 0, cum->nregs, cum->sse_nregs, | |
2205 | &x86_64_int_parameter_registers [cum->regno], | |
2206 | cum->sse_regno); | |
2207 | else | |
2208 | switch (mode) | |
2209 | { | |
2210 | /* For now, pass fp/complex values on the stack. */ | |
2211 | default: | |
2212 | break; | |
2213 | ||
2214 | case BLKmode: | |
2215 | case DImode: | |
2216 | case SImode: | |
2217 | case HImode: | |
2218 | case QImode: | |
2219 | if (words <= cum->nregs) | |
2220 | ret = gen_rtx_REG (mode, cum->regno); | |
2221 | break; | |
2222 | case TImode: | |
2223 | if (cum->sse_nregs) | |
2224 | ret = gen_rtx_REG (mode, cum->sse_regno); | |
2225 | break; | |
2226 | } | |
b08de47e MM |
2227 | |
2228 | if (TARGET_DEBUG_ARG) | |
2229 | { | |
2230 | fprintf (stderr, | |
91ea38f9 | 2231 | "function_arg (size=%d, wds=%2d, nregs=%d, mode=%4s, named=%d, ", |
b08de47e MM |
2232 | words, cum->words, cum->nregs, GET_MODE_NAME (mode), named); |
2233 | ||
2234 | if (ret) | |
91ea38f9 | 2235 | print_simple_rtl (stderr, ret); |
b08de47e MM |
2236 | else |
2237 | fprintf (stderr, ", stack"); | |
2238 | ||
2239 | fprintf (stderr, " )\n"); | |
2240 | } | |
2241 | ||
2242 | return ret; | |
2243 | } | |
53c17031 JH |
2244 | |
2245 | /* Gives the alignment boundary, in bits, of an argument with the specified mode | |
2246 | and type. */ | |
2247 | ||
2248 | int | |
2249 | ix86_function_arg_boundary (mode, type) | |
2250 | enum machine_mode mode; | |
2251 | tree type; | |
2252 | { | |
2253 | int align; | |
2254 | if (!TARGET_64BIT) | |
2255 | return PARM_BOUNDARY; | |
2256 | if (type) | |
2257 | align = TYPE_ALIGN (type); | |
2258 | else | |
2259 | align = GET_MODE_ALIGNMENT (mode); | |
2260 | if (align < PARM_BOUNDARY) | |
2261 | align = PARM_BOUNDARY; | |
2262 | if (align > 128) | |
2263 | align = 128; | |
2264 | return align; | |
2265 | } | |
2266 | ||
2267 | /* Return true if N is a possible register number of function value. */ | |
2268 | bool | |
2269 | ix86_function_value_regno_p (regno) | |
2270 | int regno; | |
2271 | { | |
2272 | if (!TARGET_64BIT) | |
2273 | { | |
2274 | return ((regno) == 0 | |
2275 | || ((regno) == FIRST_FLOAT_REG && TARGET_FLOAT_RETURNS_IN_80387) | |
2276 | || ((regno) == FIRST_SSE_REG && TARGET_SSE)); | |
2277 | } | |
2278 | return ((regno) == 0 || (regno) == FIRST_FLOAT_REG | |
2279 | || ((regno) == FIRST_SSE_REG && TARGET_SSE) | |
2280 | || ((regno) == FIRST_FLOAT_REG && TARGET_FLOAT_RETURNS_IN_80387)); | |
2281 | } | |
2282 | ||
2283 | /* Define how to find the value returned by a function. | |
2284 | VALTYPE is the data type of the value (as a tree). | |
2285 | If the precise function being called is known, FUNC is its FUNCTION_DECL; | |
2286 | otherwise, FUNC is 0. */ | |
2287 | rtx | |
2288 | ix86_function_value (valtype) | |
2289 | tree valtype; | |
2290 | { | |
2291 | if (TARGET_64BIT) | |
2292 | { | |
2293 | rtx ret = construct_container (TYPE_MODE (valtype), valtype, 1, | |
2294 | REGPARM_MAX, SSE_REGPARM_MAX, | |
2295 | x86_64_int_return_registers, 0); | |
2296 | /* For zero sized structures, construct_continer return NULL, but we need | |
2297 | to keep rest of compiler happy by returning meaningfull value. */ | |
2298 | if (!ret) | |
2299 | ret = gen_rtx_REG (TYPE_MODE (valtype), 0); | |
2300 | return ret; | |
2301 | } | |
2302 | else | |
b069de3b SS |
2303 | return gen_rtx_REG (TYPE_MODE (valtype), |
2304 | ix86_value_regno (TYPE_MODE (valtype))); | |
53c17031 JH |
2305 | } |
2306 | ||
f5143c46 | 2307 | /* Return false iff type is returned in memory. */ |
53c17031 JH |
2308 | int |
2309 | ix86_return_in_memory (type) | |
2310 | tree type; | |
2311 | { | |
2312 | int needed_intregs, needed_sseregs; | |
2313 | if (TARGET_64BIT) | |
2314 | { | |
2315 | return !examine_argument (TYPE_MODE (type), type, 1, | |
2316 | &needed_intregs, &needed_sseregs); | |
2317 | } | |
2318 | else | |
2319 | { | |
2320 | if (TYPE_MODE (type) == BLKmode | |
2321 | || (VECTOR_MODE_P (TYPE_MODE (type)) | |
2322 | && int_size_in_bytes (type) == 8) | |
2323 | || (int_size_in_bytes (type) > 12 && TYPE_MODE (type) != TImode | |
2324 | && TYPE_MODE (type) != TFmode | |
2325 | && !VECTOR_MODE_P (TYPE_MODE (type)))) | |
2326 | return 1; | |
2327 | return 0; | |
2328 | } | |
2329 | } | |
2330 | ||
2331 | /* Define how to find the value returned by a library function | |
2332 | assuming the value has mode MODE. */ | |
2333 | rtx | |
2334 | ix86_libcall_value (mode) | |
2335 | enum machine_mode mode; | |
2336 | { | |
2337 | if (TARGET_64BIT) | |
2338 | { | |
2339 | switch (mode) | |
2340 | { | |
2341 | case SFmode: | |
2342 | case SCmode: | |
2343 | case DFmode: | |
2344 | case DCmode: | |
2345 | return gen_rtx_REG (mode, FIRST_SSE_REG); | |
2346 | case TFmode: | |
2347 | case TCmode: | |
2348 | return gen_rtx_REG (mode, FIRST_FLOAT_REG); | |
2349 | default: | |
2350 | return gen_rtx_REG (mode, 0); | |
2351 | } | |
2352 | } | |
2353 | else | |
b069de3b SS |
2354 | return gen_rtx_REG (mode, ix86_value_regno (mode)); |
2355 | } | |
2356 | ||
2357 | /* Given a mode, return the register to use for a return value. */ | |
2358 | ||
2359 | static int | |
2360 | ix86_value_regno (mode) | |
2361 | enum machine_mode mode; | |
2362 | { | |
2363 | if (GET_MODE_CLASS (mode) == MODE_FLOAT && TARGET_FLOAT_RETURNS_IN_80387) | |
2364 | return FIRST_FLOAT_REG; | |
2365 | if (mode == TImode || VECTOR_MODE_P (mode)) | |
2366 | return FIRST_SSE_REG; | |
2367 | return 0; | |
53c17031 | 2368 | } |
ad919812 JH |
2369 | \f |
2370 | /* Create the va_list data type. */ | |
53c17031 | 2371 | |
ad919812 JH |
2372 | tree |
2373 | ix86_build_va_list () | |
2374 | { | |
2375 | tree f_gpr, f_fpr, f_ovf, f_sav, record, type_decl; | |
53c17031 | 2376 | |
ad919812 JH |
2377 | /* For i386 we use plain pointer to argument area. */ |
2378 | if (!TARGET_64BIT) | |
2379 | return build_pointer_type (char_type_node); | |
2380 | ||
f1e639b1 | 2381 | record = (*lang_hooks.types.make_type) (RECORD_TYPE); |
ad919812 JH |
2382 | type_decl = build_decl (TYPE_DECL, get_identifier ("__va_list_tag"), record); |
2383 | ||
fce5a9f2 | 2384 | f_gpr = build_decl (FIELD_DECL, get_identifier ("gp_offset"), |
ad919812 | 2385 | unsigned_type_node); |
fce5a9f2 | 2386 | f_fpr = build_decl (FIELD_DECL, get_identifier ("fp_offset"), |
ad919812 JH |
2387 | unsigned_type_node); |
2388 | f_ovf = build_decl (FIELD_DECL, get_identifier ("overflow_arg_area"), | |
2389 | ptr_type_node); | |
2390 | f_sav = build_decl (FIELD_DECL, get_identifier ("reg_save_area"), | |
2391 | ptr_type_node); | |
2392 | ||
2393 | DECL_FIELD_CONTEXT (f_gpr) = record; | |
2394 | DECL_FIELD_CONTEXT (f_fpr) = record; | |
2395 | DECL_FIELD_CONTEXT (f_ovf) = record; | |
2396 | DECL_FIELD_CONTEXT (f_sav) = record; | |
2397 | ||
2398 | TREE_CHAIN (record) = type_decl; | |
2399 | TYPE_NAME (record) = type_decl; | |
2400 | TYPE_FIELDS (record) = f_gpr; | |
2401 | TREE_CHAIN (f_gpr) = f_fpr; | |
2402 | TREE_CHAIN (f_fpr) = f_ovf; | |
2403 | TREE_CHAIN (f_ovf) = f_sav; | |
2404 | ||
2405 | layout_type (record); | |
2406 | ||
2407 | /* The correct type is an array type of one element. */ | |
2408 | return build_array_type (record, build_index_type (size_zero_node)); | |
2409 | } | |
2410 | ||
2411 | /* Perform any needed actions needed for a function that is receiving a | |
fce5a9f2 | 2412 | variable number of arguments. |
ad919812 JH |
2413 | |
2414 | CUM is as above. | |
2415 | ||
2416 | MODE and TYPE are the mode and type of the current parameter. | |
2417 | ||
2418 | PRETEND_SIZE is a variable that should be set to the amount of stack | |
2419 | that must be pushed by the prolog to pretend that our caller pushed | |
2420 | it. | |
2421 | ||
2422 | Normally, this macro will push all remaining incoming registers on the | |
2423 | stack and set PRETEND_SIZE to the length of the registers pushed. */ | |
2424 | ||
2425 | void | |
2426 | ix86_setup_incoming_varargs (cum, mode, type, pretend_size, no_rtl) | |
2427 | CUMULATIVE_ARGS *cum; | |
2428 | enum machine_mode mode; | |
2429 | tree type; | |
2430 | int *pretend_size ATTRIBUTE_UNUSED; | |
2431 | int no_rtl; | |
2432 | ||
2433 | { | |
2434 | CUMULATIVE_ARGS next_cum; | |
2435 | rtx save_area = NULL_RTX, mem; | |
2436 | rtx label; | |
2437 | rtx label_ref; | |
2438 | rtx tmp_reg; | |
2439 | rtx nsse_reg; | |
2440 | int set; | |
2441 | tree fntype; | |
2442 | int stdarg_p; | |
2443 | int i; | |
2444 | ||
2445 | if (!TARGET_64BIT) | |
2446 | return; | |
2447 | ||
2448 | /* Indicate to allocate space on the stack for varargs save area. */ | |
2449 | ix86_save_varrargs_registers = 1; | |
2450 | ||
2451 | fntype = TREE_TYPE (current_function_decl); | |
2452 | stdarg_p = (TYPE_ARG_TYPES (fntype) != 0 | |
2453 | && (TREE_VALUE (tree_last (TYPE_ARG_TYPES (fntype))) | |
2454 | != void_type_node)); | |
2455 | ||
2456 | /* For varargs, we do not want to skip the dummy va_dcl argument. | |
2457 | For stdargs, we do want to skip the last named argument. */ | |
2458 | next_cum = *cum; | |
2459 | if (stdarg_p) | |
2460 | function_arg_advance (&next_cum, mode, type, 1); | |
2461 | ||
2462 | if (!no_rtl) | |
2463 | save_area = frame_pointer_rtx; | |
2464 | ||
2465 | set = get_varargs_alias_set (); | |
2466 | ||
2467 | for (i = next_cum.regno; i < ix86_regparm; i++) | |
2468 | { | |
2469 | mem = gen_rtx_MEM (Pmode, | |
2470 | plus_constant (save_area, i * UNITS_PER_WORD)); | |
0692acba | 2471 | set_mem_alias_set (mem, set); |
ad919812 JH |
2472 | emit_move_insn (mem, gen_rtx_REG (Pmode, |
2473 | x86_64_int_parameter_registers[i])); | |
2474 | } | |
2475 | ||
2476 | if (next_cum.sse_nregs) | |
2477 | { | |
2478 | /* Now emit code to save SSE registers. The AX parameter contains number | |
2479 | of SSE parameter regsiters used to call this function. We use | |
2480 | sse_prologue_save insn template that produces computed jump across | |
2481 | SSE saves. We need some preparation work to get this working. */ | |
2482 | ||
2483 | label = gen_label_rtx (); | |
2484 | label_ref = gen_rtx_LABEL_REF (Pmode, label); | |
2485 | ||
2486 | /* Compute address to jump to : | |
2487 | label - 5*eax + nnamed_sse_arguments*5 */ | |
2488 | tmp_reg = gen_reg_rtx (Pmode); | |
2489 | nsse_reg = gen_reg_rtx (Pmode); | |
2490 | emit_insn (gen_zero_extendqidi2 (nsse_reg, gen_rtx_REG (QImode, 0))); | |
2491 | emit_insn (gen_rtx_SET (VOIDmode, tmp_reg, | |
44cf5b6a | 2492 | gen_rtx_MULT (Pmode, nsse_reg, |
ad919812 JH |
2493 | GEN_INT (4)))); |
2494 | if (next_cum.sse_regno) | |
2495 | emit_move_insn | |
2496 | (nsse_reg, | |
2497 | gen_rtx_CONST (DImode, | |
2498 | gen_rtx_PLUS (DImode, | |
2499 | label_ref, | |
2500 | GEN_INT (next_cum.sse_regno * 4)))); | |
2501 | else | |
2502 | emit_move_insn (nsse_reg, label_ref); | |
2503 | emit_insn (gen_subdi3 (nsse_reg, nsse_reg, tmp_reg)); | |
2504 | ||
2505 | /* Compute address of memory block we save into. We always use pointer | |
2506 | pointing 127 bytes after first byte to store - this is needed to keep | |
2507 | instruction size limited by 4 bytes. */ | |
2508 | tmp_reg = gen_reg_rtx (Pmode); | |
8ac61af7 RK |
2509 | emit_insn (gen_rtx_SET (VOIDmode, tmp_reg, |
2510 | plus_constant (save_area, | |
2511 | 8 * REGPARM_MAX + 127))); | |
ad919812 | 2512 | mem = gen_rtx_MEM (BLKmode, plus_constant (tmp_reg, -127)); |
14f73b5a | 2513 | set_mem_alias_set (mem, set); |
8ac61af7 | 2514 | set_mem_align (mem, BITS_PER_WORD); |
ad919812 JH |
2515 | |
2516 | /* And finally do the dirty job! */ | |
8ac61af7 RK |
2517 | emit_insn (gen_sse_prologue_save (mem, nsse_reg, |
2518 | GEN_INT (next_cum.sse_regno), label)); | |
ad919812 JH |
2519 | } |
2520 | ||
2521 | } | |
2522 | ||
2523 | /* Implement va_start. */ | |
2524 | ||
2525 | void | |
e5faf155 | 2526 | ix86_va_start (valist, nextarg) |
ad919812 JH |
2527 | tree valist; |
2528 | rtx nextarg; | |
2529 | { | |
2530 | HOST_WIDE_INT words, n_gpr, n_fpr; | |
2531 | tree f_gpr, f_fpr, f_ovf, f_sav; | |
2532 | tree gpr, fpr, ovf, sav, t; | |
2533 | ||
2534 | /* Only 64bit target needs something special. */ | |
2535 | if (!TARGET_64BIT) | |
2536 | { | |
e5faf155 | 2537 | std_expand_builtin_va_start (valist, nextarg); |
ad919812 JH |
2538 | return; |
2539 | } | |
2540 | ||
2541 | f_gpr = TYPE_FIELDS (TREE_TYPE (va_list_type_node)); | |
2542 | f_fpr = TREE_CHAIN (f_gpr); | |
2543 | f_ovf = TREE_CHAIN (f_fpr); | |
2544 | f_sav = TREE_CHAIN (f_ovf); | |
2545 | ||
2546 | valist = build1 (INDIRECT_REF, TREE_TYPE (TREE_TYPE (valist)), valist); | |
2547 | gpr = build (COMPONENT_REF, TREE_TYPE (f_gpr), valist, f_gpr); | |
2548 | fpr = build (COMPONENT_REF, TREE_TYPE (f_fpr), valist, f_fpr); | |
2549 | ovf = build (COMPONENT_REF, TREE_TYPE (f_ovf), valist, f_ovf); | |
2550 | sav = build (COMPONENT_REF, TREE_TYPE (f_sav), valist, f_sav); | |
2551 | ||
2552 | /* Count number of gp and fp argument registers used. */ | |
2553 | words = current_function_args_info.words; | |
2554 | n_gpr = current_function_args_info.regno; | |
2555 | n_fpr = current_function_args_info.sse_regno; | |
2556 | ||
2557 | if (TARGET_DEBUG_ARG) | |
2558 | fprintf (stderr, "va_start: words = %d, n_gpr = %d, n_fpr = %d\n", | |
b531087a | 2559 | (int) words, (int) n_gpr, (int) n_fpr); |
ad919812 JH |
2560 | |
2561 | t = build (MODIFY_EXPR, TREE_TYPE (gpr), gpr, | |
2562 | build_int_2 (n_gpr * 8, 0)); | |
2563 | TREE_SIDE_EFFECTS (t) = 1; | |
2564 | expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL); | |
2565 | ||
2566 | t = build (MODIFY_EXPR, TREE_TYPE (fpr), fpr, | |
2567 | build_int_2 (n_fpr * 16 + 8*REGPARM_MAX, 0)); | |
2568 | TREE_SIDE_EFFECTS (t) = 1; | |
2569 | expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL); | |
2570 | ||
2571 | /* Find the overflow area. */ | |
2572 | t = make_tree (TREE_TYPE (ovf), virtual_incoming_args_rtx); | |
2573 | if (words != 0) | |
2574 | t = build (PLUS_EXPR, TREE_TYPE (ovf), t, | |
2575 | build_int_2 (words * UNITS_PER_WORD, 0)); | |
2576 | t = build (MODIFY_EXPR, TREE_TYPE (ovf), ovf, t); | |
2577 | TREE_SIDE_EFFECTS (t) = 1; | |
2578 | expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL); | |
2579 | ||
2580 | /* Find the register save area. | |
2581 | Prologue of the function save it right above stack frame. */ | |
2582 | t = make_tree (TREE_TYPE (sav), frame_pointer_rtx); | |
2583 | t = build (MODIFY_EXPR, TREE_TYPE (sav), sav, t); | |
2584 | TREE_SIDE_EFFECTS (t) = 1; | |
2585 | expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL); | |
2586 | } | |
2587 | ||
2588 | /* Implement va_arg. */ | |
2589 | rtx | |
2590 | ix86_va_arg (valist, type) | |
2591 | tree valist, type; | |
2592 | { | |
0139adca | 2593 | static const int intreg[6] = { 0, 1, 2, 3, 4, 5 }; |
ad919812 JH |
2594 | tree f_gpr, f_fpr, f_ovf, f_sav; |
2595 | tree gpr, fpr, ovf, sav, t; | |
b932f770 | 2596 | int size, rsize; |
ad919812 JH |
2597 | rtx lab_false, lab_over = NULL_RTX; |
2598 | rtx addr_rtx, r; | |
2599 | rtx container; | |
2600 | ||
2601 | /* Only 64bit target needs something special. */ | |
2602 | if (!TARGET_64BIT) | |
2603 | { | |
2604 | return std_expand_builtin_va_arg (valist, type); | |
2605 | } | |
2606 | ||
2607 | f_gpr = TYPE_FIELDS (TREE_TYPE (va_list_type_node)); | |
2608 | f_fpr = TREE_CHAIN (f_gpr); | |
2609 | f_ovf = TREE_CHAIN (f_fpr); | |
2610 | f_sav = TREE_CHAIN (f_ovf); | |
2611 | ||
2612 | valist = build1 (INDIRECT_REF, TREE_TYPE (TREE_TYPE (valist)), valist); | |
2613 | gpr = build (COMPONENT_REF, TREE_TYPE (f_gpr), valist, f_gpr); | |
2614 | fpr = build (COMPONENT_REF, TREE_TYPE (f_fpr), valist, f_fpr); | |
2615 | ovf = build (COMPONENT_REF, TREE_TYPE (f_ovf), valist, f_ovf); | |
2616 | sav = build (COMPONENT_REF, TREE_TYPE (f_sav), valist, f_sav); | |
2617 | ||
2618 | size = int_size_in_bytes (type); | |
2619 | rsize = (size + UNITS_PER_WORD - 1) / UNITS_PER_WORD; | |
2620 | ||
2621 | container = construct_container (TYPE_MODE (type), type, 0, | |
2622 | REGPARM_MAX, SSE_REGPARM_MAX, intreg, 0); | |
2623 | /* | |
2624 | * Pull the value out of the saved registers ... | |
2625 | */ | |
2626 | ||
2627 | addr_rtx = gen_reg_rtx (Pmode); | |
2628 | ||
2629 | if (container) | |
2630 | { | |
2631 | rtx int_addr_rtx, sse_addr_rtx; | |
2632 | int needed_intregs, needed_sseregs; | |
2633 | int need_temp; | |
2634 | ||
2635 | lab_over = gen_label_rtx (); | |
2636 | lab_false = gen_label_rtx (); | |
8bad7136 | 2637 | |
ad919812 JH |
2638 | examine_argument (TYPE_MODE (type), type, 0, |
2639 | &needed_intregs, &needed_sseregs); | |
2640 | ||
2641 | ||
2642 | need_temp = ((needed_intregs && TYPE_ALIGN (type) > 64) | |
2643 | || TYPE_ALIGN (type) > 128); | |
2644 | ||
2645 | /* In case we are passing structure, verify that it is consetuctive block | |
2646 | on the register save area. If not we need to do moves. */ | |
2647 | if (!need_temp && !REG_P (container)) | |
2648 | { | |
2649 | /* Verify that all registers are strictly consetuctive */ | |
2650 | if (SSE_REGNO_P (REGNO (XEXP (XVECEXP (container, 0, 0), 0)))) | |
2651 | { | |
2652 | int i; | |
2653 | ||
2654 | for (i = 0; i < XVECLEN (container, 0) && !need_temp; i++) | |
2655 | { | |
2656 | rtx slot = XVECEXP (container, 0, i); | |
b531087a | 2657 | if (REGNO (XEXP (slot, 0)) != FIRST_SSE_REG + (unsigned int) i |
ad919812 JH |
2658 | || INTVAL (XEXP (slot, 1)) != i * 16) |
2659 | need_temp = 1; | |
2660 | } | |
2661 | } | |
2662 | else | |
2663 | { | |
2664 | int i; | |
2665 | ||
2666 | for (i = 0; i < XVECLEN (container, 0) && !need_temp; i++) | |
2667 | { | |
2668 | rtx slot = XVECEXP (container, 0, i); | |
b531087a | 2669 | if (REGNO (XEXP (slot, 0)) != (unsigned int) i |
ad919812 JH |
2670 | || INTVAL (XEXP (slot, 1)) != i * 8) |
2671 | need_temp = 1; | |
2672 | } | |
2673 | } | |
2674 | } | |
2675 | if (!need_temp) | |
2676 | { | |
2677 | int_addr_rtx = addr_rtx; | |
2678 | sse_addr_rtx = addr_rtx; | |
2679 | } | |
2680 | else | |
2681 | { | |
2682 | int_addr_rtx = gen_reg_rtx (Pmode); | |
2683 | sse_addr_rtx = gen_reg_rtx (Pmode); | |
2684 | } | |
2685 | /* First ensure that we fit completely in registers. */ | |
2686 | if (needed_intregs) | |
2687 | { | |
2688 | emit_cmp_and_jump_insns (expand_expr | |
2689 | (gpr, NULL_RTX, SImode, EXPAND_NORMAL), | |
2690 | GEN_INT ((REGPARM_MAX - needed_intregs + | |
2691 | 1) * 8), GE, const1_rtx, SImode, | |
d43e0b7d | 2692 | 1, lab_false); |
ad919812 JH |
2693 | } |
2694 | if (needed_sseregs) | |
2695 | { | |
2696 | emit_cmp_and_jump_insns (expand_expr | |
2697 | (fpr, NULL_RTX, SImode, EXPAND_NORMAL), | |
2698 | GEN_INT ((SSE_REGPARM_MAX - | |
2699 | needed_sseregs + 1) * 16 + | |
2700 | REGPARM_MAX * 8), GE, const1_rtx, | |
d43e0b7d | 2701 | SImode, 1, lab_false); |
ad919812 JH |
2702 | } |
2703 | ||
2704 | /* Compute index to start of area used for integer regs. */ | |
2705 | if (needed_intregs) | |
2706 | { | |
2707 | t = build (PLUS_EXPR, ptr_type_node, sav, gpr); | |
2708 | r = expand_expr (t, int_addr_rtx, Pmode, EXPAND_NORMAL); | |
2709 | if (r != int_addr_rtx) | |
2710 | emit_move_insn (int_addr_rtx, r); | |
2711 | } | |
2712 | if (needed_sseregs) | |
2713 | { | |
2714 | t = build (PLUS_EXPR, ptr_type_node, sav, fpr); | |
2715 | r = expand_expr (t, sse_addr_rtx, Pmode, EXPAND_NORMAL); | |
2716 | if (r != sse_addr_rtx) | |
2717 | emit_move_insn (sse_addr_rtx, r); | |
2718 | } | |
2719 | if (need_temp) | |
2720 | { | |
2721 | int i; | |
2722 | rtx mem; | |
2723 | ||
b932f770 JH |
2724 | /* Never use the memory itself, as it has the alias set. */ |
2725 | addr_rtx = XEXP (assign_temp (type, 0, 1, 0), 0); | |
2726 | mem = gen_rtx_MEM (BLKmode, addr_rtx); | |
0692acba | 2727 | set_mem_alias_set (mem, get_varargs_alias_set ()); |
8ac61af7 | 2728 | set_mem_align (mem, BITS_PER_UNIT); |
b932f770 | 2729 | |
ad919812 JH |
2730 | for (i = 0; i < XVECLEN (container, 0); i++) |
2731 | { | |
2732 | rtx slot = XVECEXP (container, 0, i); | |
2733 | rtx reg = XEXP (slot, 0); | |
2734 | enum machine_mode mode = GET_MODE (reg); | |
2735 | rtx src_addr; | |
2736 | rtx src_mem; | |
2737 | int src_offset; | |
2738 | rtx dest_mem; | |
2739 | ||
2740 | if (SSE_REGNO_P (REGNO (reg))) | |
2741 | { | |
2742 | src_addr = sse_addr_rtx; | |
2743 | src_offset = (REGNO (reg) - FIRST_SSE_REG) * 16; | |
2744 | } | |
2745 | else | |
2746 | { | |
2747 | src_addr = int_addr_rtx; | |
2748 | src_offset = REGNO (reg) * 8; | |
2749 | } | |
2750 | src_mem = gen_rtx_MEM (mode, src_addr); | |
0692acba | 2751 | set_mem_alias_set (src_mem, get_varargs_alias_set ()); |
ad919812 JH |
2752 | src_mem = adjust_address (src_mem, mode, src_offset); |
2753 | dest_mem = adjust_address (mem, mode, INTVAL (XEXP (slot, 1))); | |
ad919812 JH |
2754 | emit_move_insn (dest_mem, src_mem); |
2755 | } | |
2756 | } | |
2757 | ||
2758 | if (needed_intregs) | |
2759 | { | |
2760 | t = | |
2761 | build (PLUS_EXPR, TREE_TYPE (gpr), gpr, | |
2762 | build_int_2 (needed_intregs * 8, 0)); | |
2763 | t = build (MODIFY_EXPR, TREE_TYPE (gpr), gpr, t); | |
2764 | TREE_SIDE_EFFECTS (t) = 1; | |
2765 | expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL); | |
2766 | } | |
2767 | if (needed_sseregs) | |
2768 | { | |
2769 | t = | |
2770 | build (PLUS_EXPR, TREE_TYPE (fpr), fpr, | |
2771 | build_int_2 (needed_sseregs * 16, 0)); | |
2772 | t = build (MODIFY_EXPR, TREE_TYPE (fpr), fpr, t); | |
2773 | TREE_SIDE_EFFECTS (t) = 1; | |
2774 | expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL); | |
2775 | } | |
2776 | ||
2777 | emit_jump_insn (gen_jump (lab_over)); | |
2778 | emit_barrier (); | |
2779 | emit_label (lab_false); | |
2780 | } | |
2781 | ||
2782 | /* ... otherwise out of the overflow area. */ | |
2783 | ||
2784 | /* Care for on-stack alignment if needed. */ | |
2785 | if (FUNCTION_ARG_BOUNDARY (VOIDmode, type) <= 64) | |
2786 | t = ovf; | |
2787 | else | |
2788 | { | |
2789 | HOST_WIDE_INT align = FUNCTION_ARG_BOUNDARY (VOIDmode, type) / 8; | |
2790 | t = build (PLUS_EXPR, TREE_TYPE (ovf), ovf, build_int_2 (align - 1, 0)); | |
2791 | t = build (BIT_AND_EXPR, TREE_TYPE (t), t, build_int_2 (-align, -1)); | |
2792 | } | |
2793 | t = save_expr (t); | |
2794 | ||
2795 | r = expand_expr (t, addr_rtx, Pmode, EXPAND_NORMAL); | |
2796 | if (r != addr_rtx) | |
2797 | emit_move_insn (addr_rtx, r); | |
2798 | ||
2799 | t = | |
2800 | build (PLUS_EXPR, TREE_TYPE (t), t, | |
2801 | build_int_2 (rsize * UNITS_PER_WORD, 0)); | |
2802 | t = build (MODIFY_EXPR, TREE_TYPE (ovf), ovf, t); | |
2803 | TREE_SIDE_EFFECTS (t) = 1; | |
2804 | expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL); | |
2805 | ||
2806 | if (container) | |
2807 | emit_label (lab_over); | |
2808 | ||
ad919812 JH |
2809 | return addr_rtx; |
2810 | } | |
2811 | \f | |
c3c637e3 GS |
2812 | /* Return nonzero if OP is either a i387 or SSE fp register. */ |
2813 | int | |
2814 | any_fp_register_operand (op, mode) | |
2815 | rtx op; | |
2816 | enum machine_mode mode ATTRIBUTE_UNUSED; | |
2817 | { | |
2818 | return ANY_FP_REG_P (op); | |
2819 | } | |
2820 | ||
2821 | /* Return nonzero if OP is an i387 fp register. */ | |
2822 | int | |
2823 | fp_register_operand (op, mode) | |
2824 | rtx op; | |
2825 | enum machine_mode mode ATTRIBUTE_UNUSED; | |
2826 | { | |
2827 | return FP_REG_P (op); | |
2828 | } | |
2829 | ||
2830 | /* Return nonzero if OP is a non-fp register_operand. */ | |
2831 | int | |
2832 | register_and_not_any_fp_reg_operand (op, mode) | |
2833 | rtx op; | |
2834 | enum machine_mode mode; | |
2835 | { | |
2836 | return register_operand (op, mode) && !ANY_FP_REG_P (op); | |
2837 | } | |
2838 | ||
2839 | /* Return nonzero of OP is a register operand other than an | |
2840 | i387 fp register. */ | |
2841 | int | |
2842 | register_and_not_fp_reg_operand (op, mode) | |
2843 | rtx op; | |
2844 | enum machine_mode mode; | |
2845 | { | |
2846 | return register_operand (op, mode) && !FP_REG_P (op); | |
2847 | } | |
2848 | ||
7dd4b4a3 JH |
2849 | /* Return nonzero if OP is general operand representable on x86_64. */ |
2850 | ||
2851 | int | |
2852 | x86_64_general_operand (op, mode) | |
2853 | rtx op; | |
2854 | enum machine_mode mode; | |
2855 | { | |
2856 | if (!TARGET_64BIT) | |
2857 | return general_operand (op, mode); | |
2858 | if (nonimmediate_operand (op, mode)) | |
2859 | return 1; | |
2860 | return x86_64_sign_extended_value (op); | |
2861 | } | |
2862 | ||
2863 | /* Return nonzero if OP is general operand representable on x86_64 | |
d6a7951f | 2864 | as either sign extended or zero extended constant. */ |
7dd4b4a3 JH |
2865 | |
2866 | int | |
2867 | x86_64_szext_general_operand (op, mode) | |
2868 | rtx op; | |
2869 | enum machine_mode mode; | |
2870 | { | |
2871 | if (!TARGET_64BIT) | |
2872 | return general_operand (op, mode); | |
2873 | if (nonimmediate_operand (op, mode)) | |
2874 | return 1; | |
2875 | return x86_64_sign_extended_value (op) || x86_64_zero_extended_value (op); | |
2876 | } | |
2877 | ||
2878 | /* Return nonzero if OP is nonmemory operand representable on x86_64. */ | |
2879 | ||
2880 | int | |
2881 | x86_64_nonmemory_operand (op, mode) | |
2882 | rtx op; | |
2883 | enum machine_mode mode; | |
2884 | { | |
2885 | if (!TARGET_64BIT) | |
2886 | return nonmemory_operand (op, mode); | |
2887 | if (register_operand (op, mode)) | |
2888 | return 1; | |
2889 | return x86_64_sign_extended_value (op); | |
2890 | } | |
2891 | ||
2892 | /* Return nonzero if OP is nonmemory operand acceptable by movabs patterns. */ | |
2893 | ||
2894 | int | |
2895 | x86_64_movabs_operand (op, mode) | |
2896 | rtx op; | |
2897 | enum machine_mode mode; | |
2898 | { | |
2899 | if (!TARGET_64BIT || !flag_pic) | |
2900 | return nonmemory_operand (op, mode); | |
2901 | if (register_operand (op, mode) || x86_64_sign_extended_value (op)) | |
2902 | return 1; | |
2903 | if (CONSTANT_P (op) && !symbolic_reference_mentioned_p (op)) | |
2904 | return 1; | |
2905 | return 0; | |
2906 | } | |
2907 | ||
2908 | /* Return nonzero if OP is nonmemory operand representable on x86_64. */ | |
2909 | ||
2910 | int | |
2911 | x86_64_szext_nonmemory_operand (op, mode) | |
2912 | rtx op; | |
2913 | enum machine_mode mode; | |
2914 | { | |
2915 | if (!TARGET_64BIT) | |
2916 | return nonmemory_operand (op, mode); | |
2917 | if (register_operand (op, mode)) | |
2918 | return 1; | |
2919 | return x86_64_sign_extended_value (op) || x86_64_zero_extended_value (op); | |
2920 | } | |
2921 | ||
2922 | /* Return nonzero if OP is immediate operand representable on x86_64. */ | |
2923 | ||
2924 | int | |
2925 | x86_64_immediate_operand (op, mode) | |
2926 | rtx op; | |
2927 | enum machine_mode mode; | |
2928 | { | |
2929 | if (!TARGET_64BIT) | |
2930 | return immediate_operand (op, mode); | |
2931 | return x86_64_sign_extended_value (op); | |
2932 | } | |
2933 | ||
2934 | /* Return nonzero if OP is immediate operand representable on x86_64. */ | |
2935 | ||
2936 | int | |
2937 | x86_64_zext_immediate_operand (op, mode) | |
2938 | rtx op; | |
2939 | enum machine_mode mode ATTRIBUTE_UNUSED; | |
2940 | { | |
2941 | return x86_64_zero_extended_value (op); | |
2942 | } | |
2943 | ||
8bad7136 JL |
2944 | /* Return nonzero if OP is (const_int 1), else return zero. */ |
2945 | ||
2946 | int | |
2947 | const_int_1_operand (op, mode) | |
2948 | rtx op; | |
2949 | enum machine_mode mode ATTRIBUTE_UNUSED; | |
2950 | { | |
2951 | return (GET_CODE (op) == CONST_INT && INTVAL (op) == 1); | |
2952 | } | |
2953 | ||
794a292d JJ |
2954 | /* Return nonzero if OP is CONST_INT >= 1 and <= 31 (a valid operand |
2955 | for shift & compare patterns, as shifting by 0 does not change flags), | |
2956 | else return zero. */ | |
2957 | ||
2958 | int | |
2959 | const_int_1_31_operand (op, mode) | |
2960 | rtx op; | |
2961 | enum machine_mode mode ATTRIBUTE_UNUSED; | |
2962 | { | |
2963 | return (GET_CODE (op) == CONST_INT && INTVAL (op) >= 1 && INTVAL (op) <= 31); | |
2964 | } | |
2965 | ||
e075ae69 RH |
2966 | /* Returns 1 if OP is either a symbol reference or a sum of a symbol |
2967 | reference and a constant. */ | |
b08de47e MM |
2968 | |
2969 | int | |
e075ae69 RH |
2970 | symbolic_operand (op, mode) |
2971 | register rtx op; | |
2972 | enum machine_mode mode ATTRIBUTE_UNUSED; | |
2a2ab3f9 | 2973 | { |
e075ae69 | 2974 | switch (GET_CODE (op)) |
2a2ab3f9 | 2975 | { |
e075ae69 RH |
2976 | case SYMBOL_REF: |
2977 | case LABEL_REF: | |
2978 | return 1; | |
2979 | ||
2980 | case CONST: | |
2981 | op = XEXP (op, 0); | |
2982 | if (GET_CODE (op) == SYMBOL_REF | |
2983 | || GET_CODE (op) == LABEL_REF | |
2984 | || (GET_CODE (op) == UNSPEC | |
8ee41eaf RH |
2985 | && (XINT (op, 1) == UNSPEC_GOT |
2986 | || XINT (op, 1) == UNSPEC_GOTOFF | |
2987 | || XINT (op, 1) == UNSPEC_GOTPCREL))) | |
e075ae69 RH |
2988 | return 1; |
2989 | if (GET_CODE (op) != PLUS | |
2990 | || GET_CODE (XEXP (op, 1)) != CONST_INT) | |
2991 | return 0; | |
2992 | ||
2993 | op = XEXP (op, 0); | |
2994 | if (GET_CODE (op) == SYMBOL_REF | |
2995 | || GET_CODE (op) == LABEL_REF) | |
2996 | return 1; | |
2997 | /* Only @GOTOFF gets offsets. */ | |
2998 | if (GET_CODE (op) != UNSPEC | |
8ee41eaf | 2999 | || XINT (op, 1) != UNSPEC_GOTOFF) |
e075ae69 RH |
3000 | return 0; |
3001 | ||
3002 | op = XVECEXP (op, 0, 0); | |
3003 | if (GET_CODE (op) == SYMBOL_REF | |
3004 | || GET_CODE (op) == LABEL_REF) | |
3005 | return 1; | |
3006 | return 0; | |
3007 | ||
3008 | default: | |
3009 | return 0; | |
2a2ab3f9 JVA |
3010 | } |
3011 | } | |
2a2ab3f9 | 3012 | |
e075ae69 | 3013 | /* Return true if the operand contains a @GOT or @GOTOFF reference. */ |
3b3c6a3f | 3014 | |
e075ae69 RH |
3015 | int |
3016 | pic_symbolic_operand (op, mode) | |
3017 | register rtx op; | |
3018 | enum machine_mode mode ATTRIBUTE_UNUSED; | |
3019 | { | |
6eb791fc JH |
3020 | if (GET_CODE (op) != CONST) |
3021 | return 0; | |
3022 | op = XEXP (op, 0); | |
3023 | if (TARGET_64BIT) | |
3024 | { | |
3025 | if (GET_CODE (XEXP (op, 0)) == UNSPEC) | |
3026 | return 1; | |
3027 | } | |
fce5a9f2 | 3028 | else |
2a2ab3f9 | 3029 | { |
e075ae69 RH |
3030 | if (GET_CODE (op) == UNSPEC) |
3031 | return 1; | |
3032 | if (GET_CODE (op) != PLUS | |
3033 | || GET_CODE (XEXP (op, 1)) != CONST_INT) | |
3034 | return 0; | |
3035 | op = XEXP (op, 0); | |
3036 | if (GET_CODE (op) == UNSPEC) | |
3037 | return 1; | |
2a2ab3f9 | 3038 | } |
e075ae69 | 3039 | return 0; |
2a2ab3f9 | 3040 | } |
2a2ab3f9 | 3041 | |
623fe810 RH |
3042 | /* Return true if OP is a symbolic operand that resolves locally. */ |
3043 | ||
3044 | static int | |
3045 | local_symbolic_operand (op, mode) | |
3046 | rtx op; | |
3047 | enum machine_mode mode ATTRIBUTE_UNUSED; | |
3048 | { | |
3049 | if (GET_CODE (op) == LABEL_REF) | |
3050 | return 1; | |
3051 | ||
3052 | if (GET_CODE (op) == CONST | |
3053 | && GET_CODE (XEXP (op, 0)) == PLUS | |
3054 | && GET_CODE (XEXP (XEXP (op, 0), 1)) == CONST_INT) | |
3055 | op = XEXP (XEXP (op, 0), 0); | |
3056 | ||
3057 | if (GET_CODE (op) != SYMBOL_REF) | |
3058 | return 0; | |
3059 | ||
3060 | /* These we've been told are local by varasm and encode_section_info | |
3061 | respectively. */ | |
3062 | if (CONSTANT_POOL_ADDRESS_P (op) || SYMBOL_REF_FLAG (op)) | |
3063 | return 1; | |
3064 | ||
3065 | /* There is, however, a not insubstantial body of code in the rest of | |
fce5a9f2 | 3066 | the compiler that assumes it can just stick the results of |
623fe810 RH |
3067 | ASM_GENERATE_INTERNAL_LABEL in a symbol_ref and have done. */ |
3068 | /* ??? This is a hack. Should update the body of the compiler to | |
fb49053f | 3069 | always create a DECL an invoke targetm.encode_section_info. */ |
623fe810 RH |
3070 | if (strncmp (XSTR (op, 0), internal_label_prefix, |
3071 | internal_label_prefix_len) == 0) | |
3072 | return 1; | |
3073 | ||
3074 | return 0; | |
3075 | } | |
3076 | ||
f996902d RH |
3077 | /* Test for various thread-local symbols. See ix86_encode_section_info. */ |
3078 | ||
3079 | int | |
3080 | tls_symbolic_operand (op, mode) | |
3081 | register rtx op; | |
3082 | enum machine_mode mode ATTRIBUTE_UNUSED; | |
3083 | { | |
3084 | const char *symbol_str; | |
3085 | ||
3086 | if (GET_CODE (op) != SYMBOL_REF) | |
3087 | return 0; | |
3088 | symbol_str = XSTR (op, 0); | |
3089 | ||
3090 | if (symbol_str[0] != '%') | |
3091 | return 0; | |
755ac5d4 | 3092 | return strchr (tls_model_chars, symbol_str[1]) - tls_model_chars; |
f996902d RH |
3093 | } |
3094 | ||
3095 | static int | |
3096 | tls_symbolic_operand_1 (op, kind) | |
3097 | rtx op; | |
3098 | enum tls_model kind; | |
3099 | { | |
3100 | const char *symbol_str; | |
3101 | ||
3102 | if (GET_CODE (op) != SYMBOL_REF) | |
3103 | return 0; | |
3104 | symbol_str = XSTR (op, 0); | |
3105 | ||
3106 | return symbol_str[0] == '%' && symbol_str[1] == tls_model_chars[kind]; | |
3107 | } | |
3108 | ||
3109 | int | |
3110 | global_dynamic_symbolic_operand (op, mode) | |
3111 | register rtx op; | |
3112 | enum machine_mode mode ATTRIBUTE_UNUSED; | |
3113 | { | |
3114 | return tls_symbolic_operand_1 (op, TLS_MODEL_GLOBAL_DYNAMIC); | |
3115 | } | |
3116 | ||
3117 | int | |
3118 | local_dynamic_symbolic_operand (op, mode) | |
3119 | register rtx op; | |
3120 | enum machine_mode mode ATTRIBUTE_UNUSED; | |
3121 | { | |
3122 | return tls_symbolic_operand_1 (op, TLS_MODEL_LOCAL_DYNAMIC); | |
3123 | } | |
3124 | ||
3125 | int | |
3126 | initial_exec_symbolic_operand (op, mode) | |
3127 | register rtx op; | |
3128 | enum machine_mode mode ATTRIBUTE_UNUSED; | |
3129 | { | |
3130 | return tls_symbolic_operand_1 (op, TLS_MODEL_INITIAL_EXEC); | |
3131 | } | |
3132 | ||
3133 | int | |
3134 | local_exec_symbolic_operand (op, mode) | |
3135 | register rtx op; | |
3136 | enum machine_mode mode ATTRIBUTE_UNUSED; | |
3137 | { | |
3138 | return tls_symbolic_operand_1 (op, TLS_MODEL_LOCAL_EXEC); | |
3139 | } | |
3140 | ||
28d52ffb RH |
3141 | /* Test for a valid operand for a call instruction. Don't allow the |
3142 | arg pointer register or virtual regs since they may decay into | |
3143 | reg + const, which the patterns can't handle. */ | |
2a2ab3f9 | 3144 | |
e075ae69 RH |
3145 | int |
3146 | call_insn_operand (op, mode) | |
3147 | rtx op; | |
3148 | enum machine_mode mode ATTRIBUTE_UNUSED; | |
3149 | { | |
e075ae69 RH |
3150 | /* Disallow indirect through a virtual register. This leads to |
3151 | compiler aborts when trying to eliminate them. */ | |
3152 | if (GET_CODE (op) == REG | |
3153 | && (op == arg_pointer_rtx | |
564d80f4 | 3154 | || op == frame_pointer_rtx |
e075ae69 RH |
3155 | || (REGNO (op) >= FIRST_PSEUDO_REGISTER |
3156 | && REGNO (op) <= LAST_VIRTUAL_REGISTER))) | |
3157 | return 0; | |
2a2ab3f9 | 3158 | |
28d52ffb RH |
3159 | /* Disallow `call 1234'. Due to varying assembler lameness this |
3160 | gets either rejected or translated to `call .+1234'. */ | |
3161 | if (GET_CODE (op) == CONST_INT) | |
3162 | return 0; | |
3163 | ||
cbbf65e0 RH |
3164 | /* Explicitly allow SYMBOL_REF even if pic. */ |
3165 | if (GET_CODE (op) == SYMBOL_REF) | |
e075ae69 | 3166 | return 1; |
2a2ab3f9 | 3167 | |
cbbf65e0 RH |
3168 | /* Otherwise we can allow any general_operand in the address. */ |
3169 | return general_operand (op, Pmode); | |
e075ae69 | 3170 | } |
79325812 | 3171 | |
e075ae69 RH |
3172 | int |
3173 | constant_call_address_operand (op, mode) | |
3174 | rtx op; | |
3175 | enum machine_mode mode ATTRIBUTE_UNUSED; | |
3176 | { | |
eaf19aba JJ |
3177 | if (GET_CODE (op) == CONST |
3178 | && GET_CODE (XEXP (op, 0)) == PLUS | |
3179 | && GET_CODE (XEXP (XEXP (op, 0), 1)) == CONST_INT) | |
3180 | op = XEXP (XEXP (op, 0), 0); | |
e1ff012c | 3181 | return GET_CODE (op) == SYMBOL_REF; |
e075ae69 | 3182 | } |
2a2ab3f9 | 3183 | |
e075ae69 | 3184 | /* Match exactly zero and one. */ |
e9a25f70 | 3185 | |
0f290768 | 3186 | int |
e075ae69 RH |
3187 | const0_operand (op, mode) |
3188 | register rtx op; | |
3189 | enum machine_mode mode; | |
3190 | { | |
3191 | return op == CONST0_RTX (mode); | |
3192 | } | |
e9a25f70 | 3193 | |
0f290768 | 3194 | int |
e075ae69 RH |
3195 | const1_operand (op, mode) |
3196 | register rtx op; | |
3197 | enum machine_mode mode ATTRIBUTE_UNUSED; | |
3198 | { | |
3199 | return op == const1_rtx; | |
3200 | } | |
2a2ab3f9 | 3201 | |
e075ae69 | 3202 | /* Match 2, 4, or 8. Used for leal multiplicands. */ |
e9a25f70 | 3203 | |
e075ae69 RH |
3204 | int |
3205 | const248_operand (op, mode) | |
3206 | register rtx op; | |
3207 | enum machine_mode mode ATTRIBUTE_UNUSED; | |
3208 | { | |
3209 | return (GET_CODE (op) == CONST_INT | |
3210 | && (INTVAL (op) == 2 || INTVAL (op) == 4 || INTVAL (op) == 8)); | |
3211 | } | |
e9a25f70 | 3212 | |
e075ae69 | 3213 | /* True if this is a constant appropriate for an increment or decremenmt. */ |
81fd0956 | 3214 | |
e075ae69 RH |
3215 | int |
3216 | incdec_operand (op, mode) | |
3217 | register rtx op; | |
0631e0bf | 3218 | enum machine_mode mode ATTRIBUTE_UNUSED; |
e075ae69 | 3219 | { |
f5143c46 | 3220 | /* On Pentium4, the inc and dec operations causes extra dependency on flag |
b4e89e2d JH |
3221 | registers, since carry flag is not set. */ |
3222 | if (TARGET_PENTIUM4 && !optimize_size) | |
3223 | return 0; | |
2b1c08f5 | 3224 | return op == const1_rtx || op == constm1_rtx; |
e075ae69 | 3225 | } |
2a2ab3f9 | 3226 | |
371bc54b JH |
3227 | /* Return nonzero if OP is acceptable as operand of DImode shift |
3228 | expander. */ | |
3229 | ||
3230 | int | |
3231 | shiftdi_operand (op, mode) | |
3232 | rtx op; | |
3233 | enum machine_mode mode ATTRIBUTE_UNUSED; | |
3234 | { | |
3235 | if (TARGET_64BIT) | |
3236 | return nonimmediate_operand (op, mode); | |
3237 | else | |
3238 | return register_operand (op, mode); | |
3239 | } | |
3240 | ||
0f290768 | 3241 | /* Return false if this is the stack pointer, or any other fake |
e075ae69 RH |
3242 | register eliminable to the stack pointer. Otherwise, this is |
3243 | a register operand. | |
2a2ab3f9 | 3244 | |
e075ae69 RH |
3245 | This is used to prevent esp from being used as an index reg. |
3246 | Which would only happen in pathological cases. */ | |
5f1ec3e6 | 3247 | |
e075ae69 RH |
3248 | int |
3249 | reg_no_sp_operand (op, mode) | |
3250 | register rtx op; | |
3251 | enum machine_mode mode; | |
3252 | { | |
3253 | rtx t = op; | |
3254 | if (GET_CODE (t) == SUBREG) | |
3255 | t = SUBREG_REG (t); | |
564d80f4 | 3256 | if (t == stack_pointer_rtx || t == arg_pointer_rtx || t == frame_pointer_rtx) |
e075ae69 | 3257 | return 0; |
2a2ab3f9 | 3258 | |
e075ae69 | 3259 | return register_operand (op, mode); |
2a2ab3f9 | 3260 | } |
b840bfb0 | 3261 | |
915119a5 BS |
3262 | int |
3263 | mmx_reg_operand (op, mode) | |
3264 | register rtx op; | |
bd793c65 | 3265 | enum machine_mode mode ATTRIBUTE_UNUSED; |
915119a5 BS |
3266 | { |
3267 | return MMX_REG_P (op); | |
3268 | } | |
3269 | ||
2c5a510c RH |
3270 | /* Return false if this is any eliminable register. Otherwise |
3271 | general_operand. */ | |
3272 | ||
3273 | int | |
3274 | general_no_elim_operand (op, mode) | |
3275 | register rtx op; | |
3276 | enum machine_mode mode; | |
3277 | { | |
3278 | rtx t = op; | |
3279 | if (GET_CODE (t) == SUBREG) | |
3280 | t = SUBREG_REG (t); | |
3281 | if (t == arg_pointer_rtx || t == frame_pointer_rtx | |
3282 | || t == virtual_incoming_args_rtx || t == virtual_stack_vars_rtx | |
3283 | || t == virtual_stack_dynamic_rtx) | |
3284 | return 0; | |
1020a5ab RH |
3285 | if (REG_P (t) |
3286 | && REGNO (t) >= FIRST_VIRTUAL_REGISTER | |
3287 | && REGNO (t) <= LAST_VIRTUAL_REGISTER) | |
3288 | return 0; | |
2c5a510c RH |
3289 | |
3290 | return general_operand (op, mode); | |
3291 | } | |
3292 | ||
3293 | /* Return false if this is any eliminable register. Otherwise | |
3294 | register_operand or const_int. */ | |
3295 | ||
3296 | int | |
3297 | nonmemory_no_elim_operand (op, mode) | |
3298 | register rtx op; | |
3299 | enum machine_mode mode; | |
3300 | { | |
3301 | rtx t = op; | |
3302 | if (GET_CODE (t) == SUBREG) | |
3303 | t = SUBREG_REG (t); | |
3304 | if (t == arg_pointer_rtx || t == frame_pointer_rtx | |
3305 | || t == virtual_incoming_args_rtx || t == virtual_stack_vars_rtx | |
3306 | || t == virtual_stack_dynamic_rtx) | |
3307 | return 0; | |
3308 | ||
3309 | return GET_CODE (op) == CONST_INT || register_operand (op, mode); | |
3310 | } | |
3311 | ||
7ec70495 JH |
3312 | /* Return false if this is any eliminable register or stack register, |
3313 | otherwise work like register_operand. */ | |
3314 | ||
3315 | int | |
3316 | index_register_operand (op, mode) | |
3317 | register rtx op; | |
3318 | enum machine_mode mode; | |
3319 | { | |
3320 | rtx t = op; | |
3321 | if (GET_CODE (t) == SUBREG) | |
3322 | t = SUBREG_REG (t); | |
3323 | if (!REG_P (t)) | |
3324 | return 0; | |
3325 | if (t == arg_pointer_rtx | |
3326 | || t == frame_pointer_rtx | |
3327 | || t == virtual_incoming_args_rtx | |
3328 | || t == virtual_stack_vars_rtx | |
3329 | || t == virtual_stack_dynamic_rtx | |
3330 | || REGNO (t) == STACK_POINTER_REGNUM) | |
3331 | return 0; | |
3332 | ||
3333 | return general_operand (op, mode); | |
3334 | } | |
3335 | ||
e075ae69 | 3336 | /* Return true if op is a Q_REGS class register. */ |
b840bfb0 | 3337 | |
e075ae69 RH |
3338 | int |
3339 | q_regs_operand (op, mode) | |
3340 | register rtx op; | |
3341 | enum machine_mode mode; | |
b840bfb0 | 3342 | { |
e075ae69 RH |
3343 | if (mode != VOIDmode && GET_MODE (op) != mode) |
3344 | return 0; | |
3345 | if (GET_CODE (op) == SUBREG) | |
3346 | op = SUBREG_REG (op); | |
7799175f | 3347 | return ANY_QI_REG_P (op); |
0f290768 | 3348 | } |
b840bfb0 | 3349 | |
e075ae69 | 3350 | /* Return true if op is a NON_Q_REGS class register. */ |
b840bfb0 | 3351 | |
e075ae69 RH |
3352 | int |
3353 | non_q_regs_operand (op, mode) | |
3354 | register rtx op; | |
3355 | enum machine_mode mode; | |
3356 | { | |
3357 | if (mode != VOIDmode && GET_MODE (op) != mode) | |
3358 | return 0; | |
3359 | if (GET_CODE (op) == SUBREG) | |
3360 | op = SUBREG_REG (op); | |
3361 | return NON_QI_REG_P (op); | |
0f290768 | 3362 | } |
b840bfb0 | 3363 | |
915119a5 BS |
3364 | /* Return 1 if OP is a comparison that can be used in the CMPSS/CMPPS |
3365 | insns. */ | |
3366 | int | |
3367 | sse_comparison_operator (op, mode) | |
3368 | rtx op; | |
3369 | enum machine_mode mode ATTRIBUTE_UNUSED; | |
3370 | { | |
3371 | enum rtx_code code = GET_CODE (op); | |
a46d1d38 JH |
3372 | switch (code) |
3373 | { | |
3374 | /* Operations supported directly. */ | |
3375 | case EQ: | |
3376 | case LT: | |
3377 | case LE: | |
3378 | case UNORDERED: | |
3379 | case NE: | |
3380 | case UNGE: | |
3381 | case UNGT: | |
3382 | case ORDERED: | |
3383 | return 1; | |
3384 | /* These are equivalent to ones above in non-IEEE comparisons. */ | |
3385 | case UNEQ: | |
3386 | case UNLT: | |
3387 | case UNLE: | |
3388 | case LTGT: | |
3389 | case GE: | |
3390 | case GT: | |
3391 | return !TARGET_IEEE_FP; | |
3392 | default: | |
3393 | return 0; | |
3394 | } | |
915119a5 | 3395 | } |
9076b9c1 | 3396 | /* Return 1 if OP is a valid comparison operator in valid mode. */ |
e075ae69 | 3397 | int |
9076b9c1 JH |
3398 | ix86_comparison_operator (op, mode) |
3399 | register rtx op; | |
3400 | enum machine_mode mode; | |
e075ae69 | 3401 | { |
9076b9c1 | 3402 | enum machine_mode inmode; |
9a915772 | 3403 | enum rtx_code code = GET_CODE (op); |
3a3677ff RH |
3404 | if (mode != VOIDmode && GET_MODE (op) != mode) |
3405 | return 0; | |
9a915772 JH |
3406 | if (GET_RTX_CLASS (code) != '<') |
3407 | return 0; | |
3408 | inmode = GET_MODE (XEXP (op, 0)); | |
3409 | ||
3410 | if (inmode == CCFPmode || inmode == CCFPUmode) | |
3411 | { | |
3412 | enum rtx_code second_code, bypass_code; | |
3413 | ix86_fp_comparison_codes (code, &bypass_code, &code, &second_code); | |
3414 | return (bypass_code == NIL && second_code == NIL); | |
3415 | } | |
3416 | switch (code) | |
3a3677ff RH |
3417 | { |
3418 | case EQ: case NE: | |
3a3677ff | 3419 | return 1; |
9076b9c1 | 3420 | case LT: case GE: |
7e08e190 | 3421 | if (inmode == CCmode || inmode == CCGCmode |
9076b9c1 JH |
3422 | || inmode == CCGOCmode || inmode == CCNOmode) |
3423 | return 1; | |
3424 | return 0; | |
7e08e190 | 3425 | case LTU: case GTU: case LEU: case ORDERED: case UNORDERED: case GEU: |
7e08e190 | 3426 | if (inmode == CCmode) |
9076b9c1 JH |
3427 | return 1; |
3428 | return 0; | |
3429 | case GT: case LE: | |
7e08e190 | 3430 | if (inmode == CCmode || inmode == CCGCmode || inmode == CCNOmode) |
9076b9c1 JH |
3431 | return 1; |
3432 | return 0; | |
3a3677ff RH |
3433 | default: |
3434 | return 0; | |
3435 | } | |
3436 | } | |
3437 | ||
9076b9c1 | 3438 | /* Return 1 if OP is a comparison operator that can be issued by fcmov. */ |
3a3677ff | 3439 | |
9076b9c1 JH |
3440 | int |
3441 | fcmov_comparison_operator (op, mode) | |
3a3677ff RH |
3442 | register rtx op; |
3443 | enum machine_mode mode; | |
3444 | { | |
b62d22a2 | 3445 | enum machine_mode inmode; |
9a915772 | 3446 | enum rtx_code code = GET_CODE (op); |
3a3677ff RH |
3447 | if (mode != VOIDmode && GET_MODE (op) != mode) |
3448 | return 0; | |
9a915772 JH |
3449 | if (GET_RTX_CLASS (code) != '<') |
3450 | return 0; | |
3451 | inmode = GET_MODE (XEXP (op, 0)); | |
3452 | if (inmode == CCFPmode || inmode == CCFPUmode) | |
3a3677ff | 3453 | { |
9a915772 JH |
3454 | enum rtx_code second_code, bypass_code; |
3455 | ix86_fp_comparison_codes (code, &bypass_code, &code, &second_code); | |
3456 | if (bypass_code != NIL || second_code != NIL) | |
3457 | return 0; | |
3458 | code = ix86_fp_compare_code_to_integer (code); | |
3459 | } | |
3460 | /* i387 supports just limited amount of conditional codes. */ | |
3461 | switch (code) | |
3462 | { | |
3463 | case LTU: case GTU: case LEU: case GEU: | |
3464 | if (inmode == CCmode || inmode == CCFPmode || inmode == CCFPUmode) | |
9076b9c1 JH |
3465 | return 1; |
3466 | return 0; | |
9a915772 JH |
3467 | case ORDERED: case UNORDERED: |
3468 | case EQ: case NE: | |
3469 | return 1; | |
3a3677ff RH |
3470 | default: |
3471 | return 0; | |
3472 | } | |
e075ae69 | 3473 | } |
b840bfb0 | 3474 | |
e9e80858 JH |
3475 | /* Return 1 if OP is a binary operator that can be promoted to wider mode. */ |
3476 | ||
3477 | int | |
3478 | promotable_binary_operator (op, mode) | |
3479 | register rtx op; | |
3480 | enum machine_mode mode ATTRIBUTE_UNUSED; | |
3481 | { | |
3482 | switch (GET_CODE (op)) | |
3483 | { | |
3484 | case MULT: | |
3485 | /* Modern CPUs have same latency for HImode and SImode multiply, | |
3486 | but 386 and 486 do HImode multiply faster. */ | |
3487 | return ix86_cpu > PROCESSOR_I486; | |
3488 | case PLUS: | |
3489 | case AND: | |
3490 | case IOR: | |
3491 | case XOR: | |
3492 | case ASHIFT: | |
3493 | return 1; | |
3494 | default: | |
3495 | return 0; | |
3496 | } | |
3497 | } | |
3498 | ||
e075ae69 RH |
3499 | /* Nearly general operand, but accept any const_double, since we wish |
3500 | to be able to drop them into memory rather than have them get pulled | |
3501 | into registers. */ | |
b840bfb0 | 3502 | |
2a2ab3f9 | 3503 | int |
e075ae69 RH |
3504 | cmp_fp_expander_operand (op, mode) |
3505 | register rtx op; | |
3506 | enum machine_mode mode; | |
2a2ab3f9 | 3507 | { |
e075ae69 | 3508 | if (mode != VOIDmode && mode != GET_MODE (op)) |
0b6b2900 | 3509 | return 0; |
e075ae69 | 3510 | if (GET_CODE (op) == CONST_DOUBLE) |
2a2ab3f9 | 3511 | return 1; |
e075ae69 | 3512 | return general_operand (op, mode); |
2a2ab3f9 JVA |
3513 | } |
3514 | ||
e075ae69 | 3515 | /* Match an SI or HImode register for a zero_extract. */ |
2a2ab3f9 JVA |
3516 | |
3517 | int | |
e075ae69 | 3518 | ext_register_operand (op, mode) |
2a2ab3f9 | 3519 | register rtx op; |
bb5177ac | 3520 | enum machine_mode mode ATTRIBUTE_UNUSED; |
2a2ab3f9 | 3521 | { |
3522082b | 3522 | int regno; |
0d7d98ee JH |
3523 | if ((!TARGET_64BIT || GET_MODE (op) != DImode) |
3524 | && GET_MODE (op) != SImode && GET_MODE (op) != HImode) | |
e075ae69 | 3525 | return 0; |
3522082b JH |
3526 | |
3527 | if (!register_operand (op, VOIDmode)) | |
3528 | return 0; | |
3529 | ||
3530 | /* Be curefull to accept only registers having upper parts. */ | |
3531 | regno = REG_P (op) ? REGNO (op) : REGNO (SUBREG_REG (op)); | |
3532 | return (regno > LAST_VIRTUAL_REGISTER || regno < 4); | |
e075ae69 RH |
3533 | } |
3534 | ||
3535 | /* Return 1 if this is a valid binary floating-point operation. | |
0f290768 | 3536 | OP is the expression matched, and MODE is its mode. */ |
e075ae69 RH |
3537 | |
3538 | int | |
3539 | binary_fp_operator (op, mode) | |
3540 | register rtx op; | |
3541 | enum machine_mode mode; | |
3542 | { | |
3543 | if (mode != VOIDmode && mode != GET_MODE (op)) | |
3544 | return 0; | |
3545 | ||
2a2ab3f9 JVA |
3546 | switch (GET_CODE (op)) |
3547 | { | |
e075ae69 RH |
3548 | case PLUS: |
3549 | case MINUS: | |
3550 | case MULT: | |
3551 | case DIV: | |
3552 | return GET_MODE_CLASS (GET_MODE (op)) == MODE_FLOAT; | |
e9a25f70 | 3553 | |
2a2ab3f9 JVA |
3554 | default: |
3555 | return 0; | |
3556 | } | |
3557 | } | |
fee2770d | 3558 | |
e075ae69 | 3559 | int |
b531087a | 3560 | mult_operator (op, mode) |
e075ae69 RH |
3561 | register rtx op; |
3562 | enum machine_mode mode ATTRIBUTE_UNUSED; | |
3563 | { | |
3564 | return GET_CODE (op) == MULT; | |
3565 | } | |
3566 | ||
3567 | int | |
b531087a | 3568 | div_operator (op, mode) |
e075ae69 RH |
3569 | register rtx op; |
3570 | enum machine_mode mode ATTRIBUTE_UNUSED; | |
3571 | { | |
3572 | return GET_CODE (op) == DIV; | |
3573 | } | |
0a726ef1 JL |
3574 | |
3575 | int | |
e075ae69 RH |
3576 | arith_or_logical_operator (op, mode) |
3577 | rtx op; | |
3578 | enum machine_mode mode; | |
0a726ef1 | 3579 | { |
e075ae69 RH |
3580 | return ((mode == VOIDmode || GET_MODE (op) == mode) |
3581 | && (GET_RTX_CLASS (GET_CODE (op)) == 'c' | |
3582 | || GET_RTX_CLASS (GET_CODE (op)) == '2')); | |
0a726ef1 JL |
3583 | } |
3584 | ||
e075ae69 | 3585 | /* Returns 1 if OP is memory operand with a displacement. */ |
fee2770d RS |
3586 | |
3587 | int | |
e075ae69 RH |
3588 | memory_displacement_operand (op, mode) |
3589 | register rtx op; | |
3590 | enum machine_mode mode; | |
4f2c8ebb | 3591 | { |
e075ae69 | 3592 | struct ix86_address parts; |
e9a25f70 | 3593 | |
e075ae69 RH |
3594 | if (! memory_operand (op, mode)) |
3595 | return 0; | |
3596 | ||
3597 | if (! ix86_decompose_address (XEXP (op, 0), &parts)) | |
3598 | abort (); | |
3599 | ||
3600 | return parts.disp != NULL_RTX; | |
4f2c8ebb RS |
3601 | } |
3602 | ||
16189740 | 3603 | /* To avoid problems when jump re-emits comparisons like testqi_ext_ccno_0, |
e075ae69 RH |
3604 | re-recognize the operand to avoid a copy_to_mode_reg that will fail. |
3605 | ||
3606 | ??? It seems likely that this will only work because cmpsi is an | |
3607 | expander, and no actual insns use this. */ | |
4f2c8ebb RS |
3608 | |
3609 | int | |
e075ae69 RH |
3610 | cmpsi_operand (op, mode) |
3611 | rtx op; | |
3612 | enum machine_mode mode; | |
fee2770d | 3613 | { |
b9b2c339 | 3614 | if (nonimmediate_operand (op, mode)) |
e075ae69 RH |
3615 | return 1; |
3616 | ||
3617 | if (GET_CODE (op) == AND | |
3618 | && GET_MODE (op) == SImode | |
3619 | && GET_CODE (XEXP (op, 0)) == ZERO_EXTRACT | |
3620 | && GET_CODE (XEXP (XEXP (op, 0), 1)) == CONST_INT | |
3621 | && GET_CODE (XEXP (XEXP (op, 0), 2)) == CONST_INT | |
3622 | && INTVAL (XEXP (XEXP (op, 0), 1)) == 8 | |
3623 | && INTVAL (XEXP (XEXP (op, 0), 2)) == 8 | |
3624 | && GET_CODE (XEXP (op, 1)) == CONST_INT) | |
fee2770d | 3625 | return 1; |
e9a25f70 | 3626 | |
fee2770d RS |
3627 | return 0; |
3628 | } | |
d784886d | 3629 | |
e075ae69 RH |
3630 | /* Returns 1 if OP is memory operand that can not be represented by the |
3631 | modRM array. */ | |
d784886d RK |
3632 | |
3633 | int | |
e075ae69 | 3634 | long_memory_operand (op, mode) |
d784886d RK |
3635 | register rtx op; |
3636 | enum machine_mode mode; | |
3637 | { | |
e075ae69 | 3638 | if (! memory_operand (op, mode)) |
d784886d RK |
3639 | return 0; |
3640 | ||
e075ae69 | 3641 | return memory_address_length (op) != 0; |
d784886d | 3642 | } |
2247f6ed JH |
3643 | |
3644 | /* Return nonzero if the rtx is known aligned. */ | |
3645 | ||
3646 | int | |
3647 | aligned_operand (op, mode) | |
3648 | rtx op; | |
3649 | enum machine_mode mode; | |
3650 | { | |
3651 | struct ix86_address parts; | |
3652 | ||
3653 | if (!general_operand (op, mode)) | |
3654 | return 0; | |
3655 | ||
0f290768 | 3656 | /* Registers and immediate operands are always "aligned". */ |
2247f6ed JH |
3657 | if (GET_CODE (op) != MEM) |
3658 | return 1; | |
3659 | ||
0f290768 | 3660 | /* Don't even try to do any aligned optimizations with volatiles. */ |
2247f6ed JH |
3661 | if (MEM_VOLATILE_P (op)) |
3662 | return 0; | |
3663 | ||
3664 | op = XEXP (op, 0); | |
3665 | ||
3666 | /* Pushes and pops are only valid on the stack pointer. */ | |
3667 | if (GET_CODE (op) == PRE_DEC | |
3668 | || GET_CODE (op) == POST_INC) | |
3669 | return 1; | |
3670 | ||
3671 | /* Decode the address. */ | |
3672 | if (! ix86_decompose_address (op, &parts)) | |
3673 | abort (); | |
3674 | ||
1540f9eb JH |
3675 | if (parts.base && GET_CODE (parts.base) == SUBREG) |
3676 | parts.base = SUBREG_REG (parts.base); | |
3677 | if (parts.index && GET_CODE (parts.index) == SUBREG) | |
3678 | parts.index = SUBREG_REG (parts.index); | |
3679 | ||
2247f6ed JH |
3680 | /* Look for some component that isn't known to be aligned. */ |
3681 | if (parts.index) | |
3682 | { | |
3683 | if (parts.scale < 4 | |
bdb429a5 | 3684 | && REGNO_POINTER_ALIGN (REGNO (parts.index)) < 32) |
2247f6ed JH |
3685 | return 0; |
3686 | } | |
3687 | if (parts.base) | |
3688 | { | |
bdb429a5 | 3689 | if (REGNO_POINTER_ALIGN (REGNO (parts.base)) < 32) |
2247f6ed JH |
3690 | return 0; |
3691 | } | |
3692 | if (parts.disp) | |
3693 | { | |
3694 | if (GET_CODE (parts.disp) != CONST_INT | |
3695 | || (INTVAL (parts.disp) & 3) != 0) | |
3696 | return 0; | |
3697 | } | |
3698 | ||
3699 | /* Didn't find one -- this must be an aligned address. */ | |
3700 | return 1; | |
3701 | } | |
e075ae69 RH |
3702 | \f |
3703 | /* Return true if the constant is something that can be loaded with | |
3704 | a special instruction. Only handle 0.0 and 1.0; others are less | |
3705 | worthwhile. */ | |
57dbca5e BS |
3706 | |
3707 | int | |
e075ae69 RH |
3708 | standard_80387_constant_p (x) |
3709 | rtx x; | |
57dbca5e | 3710 | { |
2b04e52b | 3711 | if (GET_CODE (x) != CONST_DOUBLE || !FLOAT_MODE_P (GET_MODE (x))) |
e075ae69 | 3712 | return -1; |
2b04e52b JH |
3713 | /* Note that on the 80387, other constants, such as pi, that we should support |
3714 | too. On some machines, these are much slower to load as standard constant, | |
3715 | than to load from doubles in memory. */ | |
3716 | if (x == CONST0_RTX (GET_MODE (x))) | |
3717 | return 1; | |
3718 | if (x == CONST1_RTX (GET_MODE (x))) | |
3719 | return 2; | |
e075ae69 | 3720 | return 0; |
57dbca5e BS |
3721 | } |
3722 | ||
2b04e52b JH |
3723 | /* Return 1 if X is FP constant we can load to SSE register w/o using memory. |
3724 | */ | |
3725 | int | |
3726 | standard_sse_constant_p (x) | |
3727 | rtx x; | |
3728 | { | |
3729 | if (GET_CODE (x) != CONST_DOUBLE) | |
3730 | return -1; | |
3731 | return (x == CONST0_RTX (GET_MODE (x))); | |
3732 | } | |
3733 | ||
2a2ab3f9 JVA |
3734 | /* Returns 1 if OP contains a symbol reference */ |
3735 | ||
3736 | int | |
3737 | symbolic_reference_mentioned_p (op) | |
3738 | rtx op; | |
3739 | { | |
6f7d635c | 3740 | register const char *fmt; |
2a2ab3f9 JVA |
3741 | register int i; |
3742 | ||
3743 | if (GET_CODE (op) == SYMBOL_REF || GET_CODE (op) == LABEL_REF) | |
3744 | return 1; | |
3745 | ||
3746 | fmt = GET_RTX_FORMAT (GET_CODE (op)); | |
3747 | for (i = GET_RTX_LENGTH (GET_CODE (op)) - 1; i >= 0; i--) | |
3748 | { | |
3749 | if (fmt[i] == 'E') | |
3750 | { | |
3751 | register int j; | |
3752 | ||
3753 | for (j = XVECLEN (op, i) - 1; j >= 0; j--) | |
3754 | if (symbolic_reference_mentioned_p (XVECEXP (op, i, j))) | |
3755 | return 1; | |
3756 | } | |
e9a25f70 | 3757 | |
2a2ab3f9 JVA |
3758 | else if (fmt[i] == 'e' && symbolic_reference_mentioned_p (XEXP (op, i))) |
3759 | return 1; | |
3760 | } | |
3761 | ||
3762 | return 0; | |
3763 | } | |
e075ae69 RH |
3764 | |
3765 | /* Return 1 if it is appropriate to emit `ret' instructions in the | |
3766 | body of a function. Do this only if the epilogue is simple, needing a | |
3767 | couple of insns. Prior to reloading, we can't tell how many registers | |
3768 | must be saved, so return 0 then. Return 0 if there is no frame | |
3769 | marker to de-allocate. | |
3770 | ||
3771 | If NON_SAVING_SETJMP is defined and true, then it is not possible | |
3772 | for the epilogue to be simple, so return 0. This is a special case | |
3773 | since NON_SAVING_SETJMP will not cause regs_ever_live to change | |
3774 | until final, but jump_optimize may need to know sooner if a | |
3775 | `return' is OK. */ | |
32b5b1aa SC |
3776 | |
3777 | int | |
e075ae69 | 3778 | ix86_can_use_return_insn_p () |
32b5b1aa | 3779 | { |
4dd2ac2c | 3780 | struct ix86_frame frame; |
9a7372d6 | 3781 | |
e075ae69 RH |
3782 | #ifdef NON_SAVING_SETJMP |
3783 | if (NON_SAVING_SETJMP && current_function_calls_setjmp) | |
3784 | return 0; | |
3785 | #endif | |
9a7372d6 RH |
3786 | |
3787 | if (! reload_completed || frame_pointer_needed) | |
3788 | return 0; | |
32b5b1aa | 3789 | |
9a7372d6 RH |
3790 | /* Don't allow more than 32 pop, since that's all we can do |
3791 | with one instruction. */ | |
3792 | if (current_function_pops_args | |
3793 | && current_function_args_size >= 32768) | |
e075ae69 | 3794 | return 0; |
32b5b1aa | 3795 | |
4dd2ac2c JH |
3796 | ix86_compute_frame_layout (&frame); |
3797 | return frame.to_allocate == 0 && frame.nregs == 0; | |
e075ae69 | 3798 | } |
6189a572 JH |
3799 | \f |
3800 | /* Return 1 if VALUE can be stored in the sign extended immediate field. */ | |
3801 | int | |
3802 | x86_64_sign_extended_value (value) | |
3803 | rtx value; | |
3804 | { | |
3805 | switch (GET_CODE (value)) | |
3806 | { | |
3807 | /* CONST_DOUBLES never match, since HOST_BITS_PER_WIDE_INT is known | |
3808 | to be at least 32 and this all acceptable constants are | |
3809 | represented as CONST_INT. */ | |
3810 | case CONST_INT: | |
3811 | if (HOST_BITS_PER_WIDE_INT == 32) | |
3812 | return 1; | |
3813 | else | |
3814 | { | |
3815 | HOST_WIDE_INT val = trunc_int_for_mode (INTVAL (value), DImode); | |
fa9f36a1 | 3816 | return trunc_int_for_mode (val, SImode) == val; |
6189a572 JH |
3817 | } |
3818 | break; | |
3819 | ||
3820 | /* For certain code models, the symbolic references are known to fit. */ | |
3821 | case SYMBOL_REF: | |
3822 | return ix86_cmodel == CM_SMALL || ix86_cmodel == CM_KERNEL; | |
3823 | ||
3824 | /* For certain code models, the code is near as well. */ | |
3825 | case LABEL_REF: | |
3826 | return ix86_cmodel != CM_LARGE && ix86_cmodel != CM_SMALL_PIC; | |
3827 | ||
3828 | /* We also may accept the offsetted memory references in certain special | |
3829 | cases. */ | |
3830 | case CONST: | |
3831 | if (GET_CODE (XEXP (value, 0)) == UNSPEC | |
8ee41eaf | 3832 | && XINT (XEXP (value, 0), 1) == UNSPEC_GOTPCREL) |
6189a572 JH |
3833 | return 1; |
3834 | else if (GET_CODE (XEXP (value, 0)) == PLUS) | |
3835 | { | |
3836 | rtx op1 = XEXP (XEXP (value, 0), 0); | |
3837 | rtx op2 = XEXP (XEXP (value, 0), 1); | |
3838 | HOST_WIDE_INT offset; | |
3839 | ||
3840 | if (ix86_cmodel == CM_LARGE) | |
3841 | return 0; | |
3842 | if (GET_CODE (op2) != CONST_INT) | |
3843 | return 0; | |
3844 | offset = trunc_int_for_mode (INTVAL (op2), DImode); | |
3845 | switch (GET_CODE (op1)) | |
3846 | { | |
3847 | case SYMBOL_REF: | |
3848 | /* For CM_SMALL assume that latest object is 1MB before | |
3849 | end of 31bits boundary. We may also accept pretty | |
3850 | large negative constants knowing that all objects are | |
3851 | in the positive half of address space. */ | |
3852 | if (ix86_cmodel == CM_SMALL | |
3853 | && offset < 1024*1024*1024 | |
3854 | && trunc_int_for_mode (offset, SImode) == offset) | |
3855 | return 1; | |
3856 | /* For CM_KERNEL we know that all object resist in the | |
3857 | negative half of 32bits address space. We may not | |
3858 | accept negative offsets, since they may be just off | |
d6a7951f | 3859 | and we may accept pretty large positive ones. */ |
6189a572 JH |
3860 | if (ix86_cmodel == CM_KERNEL |
3861 | && offset > 0 | |
3862 | && trunc_int_for_mode (offset, SImode) == offset) | |
3863 | return 1; | |
3864 | break; | |
3865 | case LABEL_REF: | |
3866 | /* These conditions are similar to SYMBOL_REF ones, just the | |
3867 | constraints for code models differ. */ | |
3868 | if ((ix86_cmodel == CM_SMALL || ix86_cmodel == CM_MEDIUM) | |
3869 | && offset < 1024*1024*1024 | |
3870 | && trunc_int_for_mode (offset, SImode) == offset) | |
3871 | return 1; | |
3872 | if (ix86_cmodel == CM_KERNEL | |
3873 | && offset > 0 | |
3874 | && trunc_int_for_mode (offset, SImode) == offset) | |
3875 | return 1; | |
3876 | break; | |
3877 | default: | |
3878 | return 0; | |
3879 | } | |
3880 | } | |
3881 | return 0; | |
3882 | default: | |
3883 | return 0; | |
3884 | } | |
3885 | } | |
3886 | ||
3887 | /* Return 1 if VALUE can be stored in the zero extended immediate field. */ | |
3888 | int | |
3889 | x86_64_zero_extended_value (value) | |
3890 | rtx value; | |
3891 | { | |
3892 | switch (GET_CODE (value)) | |
3893 | { | |
3894 | case CONST_DOUBLE: | |
3895 | if (HOST_BITS_PER_WIDE_INT == 32) | |
3896 | return (GET_MODE (value) == VOIDmode | |
3897 | && !CONST_DOUBLE_HIGH (value)); | |
3898 | else | |
3899 | return 0; | |
3900 | case CONST_INT: | |
3901 | if (HOST_BITS_PER_WIDE_INT == 32) | |
3902 | return INTVAL (value) >= 0; | |
3903 | else | |
b531087a | 3904 | return !(INTVAL (value) & ~(HOST_WIDE_INT) 0xffffffff); |
6189a572 JH |
3905 | break; |
3906 | ||
3907 | /* For certain code models, the symbolic references are known to fit. */ | |
3908 | case SYMBOL_REF: | |
3909 | return ix86_cmodel == CM_SMALL; | |
3910 | ||
3911 | /* For certain code models, the code is near as well. */ | |
3912 | case LABEL_REF: | |
3913 | return ix86_cmodel == CM_SMALL || ix86_cmodel == CM_MEDIUM; | |
3914 | ||
3915 | /* We also may accept the offsetted memory references in certain special | |
3916 | cases. */ | |
3917 | case CONST: | |
3918 | if (GET_CODE (XEXP (value, 0)) == PLUS) | |
3919 | { | |
3920 | rtx op1 = XEXP (XEXP (value, 0), 0); | |
3921 | rtx op2 = XEXP (XEXP (value, 0), 1); | |
3922 | ||
3923 | if (ix86_cmodel == CM_LARGE) | |
3924 | return 0; | |
3925 | switch (GET_CODE (op1)) | |
3926 | { | |
3927 | case SYMBOL_REF: | |
3928 | return 0; | |
d6a7951f | 3929 | /* For small code model we may accept pretty large positive |
6189a572 JH |
3930 | offsets, since one bit is available for free. Negative |
3931 | offsets are limited by the size of NULL pointer area | |
3932 | specified by the ABI. */ | |
3933 | if (ix86_cmodel == CM_SMALL | |
3934 | && GET_CODE (op2) == CONST_INT | |
3935 | && trunc_int_for_mode (INTVAL (op2), DImode) > -0x10000 | |
3936 | && (trunc_int_for_mode (INTVAL (op2), SImode) | |
3937 | == INTVAL (op2))) | |
3938 | return 1; | |
3939 | /* ??? For the kernel, we may accept adjustment of | |
3940 | -0x10000000, since we know that it will just convert | |
d6a7951f | 3941 | negative address space to positive, but perhaps this |
6189a572 JH |
3942 | is not worthwhile. */ |
3943 | break; | |
3944 | case LABEL_REF: | |
3945 | /* These conditions are similar to SYMBOL_REF ones, just the | |
3946 | constraints for code models differ. */ | |
3947 | if ((ix86_cmodel == CM_SMALL || ix86_cmodel == CM_MEDIUM) | |
3948 | && GET_CODE (op2) == CONST_INT | |
3949 | && trunc_int_for_mode (INTVAL (op2), DImode) > -0x10000 | |
3950 | && (trunc_int_for_mode (INTVAL (op2), SImode) | |
3951 | == INTVAL (op2))) | |
3952 | return 1; | |
3953 | break; | |
3954 | default: | |
3955 | return 0; | |
3956 | } | |
3957 | } | |
3958 | return 0; | |
3959 | default: | |
3960 | return 0; | |
3961 | } | |
3962 | } | |
6fca22eb RH |
3963 | |
3964 | /* Value should be nonzero if functions must have frame pointers. | |
3965 | Zero means the frame pointer need not be set up (and parms may | |
3966 | be accessed via the stack pointer) in functions that seem suitable. */ | |
3967 | ||
3968 | int | |
3969 | ix86_frame_pointer_required () | |
3970 | { | |
3971 | /* If we accessed previous frames, then the generated code expects | |
3972 | to be able to access the saved ebp value in our frame. */ | |
3973 | if (cfun->machine->accesses_prev_frame) | |
3974 | return 1; | |
a4f31c00 | 3975 | |
6fca22eb RH |
3976 | /* Several x86 os'es need a frame pointer for other reasons, |
3977 | usually pertaining to setjmp. */ | |
3978 | if (SUBTARGET_FRAME_POINTER_REQUIRED) | |
3979 | return 1; | |
3980 | ||
3981 | /* In override_options, TARGET_OMIT_LEAF_FRAME_POINTER turns off | |
3982 | the frame pointer by default. Turn it back on now if we've not | |
3983 | got a leaf function. */ | |
a7943381 RH |
3984 | if (TARGET_OMIT_LEAF_FRAME_POINTER |
3985 | && (!current_function_is_leaf || current_function_profile)) | |
6fca22eb RH |
3986 | return 1; |
3987 | ||
3988 | return 0; | |
3989 | } | |
3990 | ||
3991 | /* Record that the current function accesses previous call frames. */ | |
3992 | ||
3993 | void | |
3994 | ix86_setup_frame_addresses () | |
3995 | { | |
3996 | cfun->machine->accesses_prev_frame = 1; | |
3997 | } | |
e075ae69 | 3998 | \f |
145aacc2 RH |
3999 | #if defined(HAVE_GAS_HIDDEN) && defined(SUPPORTS_ONE_ONLY) |
4000 | # define USE_HIDDEN_LINKONCE 1 | |
4001 | #else | |
4002 | # define USE_HIDDEN_LINKONCE 0 | |
4003 | #endif | |
4004 | ||
bd09bdeb | 4005 | static int pic_labels_used; |
e9a25f70 | 4006 | |
145aacc2 RH |
4007 | /* Fills in the label name that should be used for a pc thunk for |
4008 | the given register. */ | |
4009 | ||
4010 | static void | |
4011 | get_pc_thunk_name (name, regno) | |
4012 | char name[32]; | |
4013 | unsigned int regno; | |
4014 | { | |
4015 | if (USE_HIDDEN_LINKONCE) | |
4016 | sprintf (name, "__i686.get_pc_thunk.%s", reg_names[regno]); | |
4017 | else | |
4018 | ASM_GENERATE_INTERNAL_LABEL (name, "LPR", regno); | |
4019 | } | |
4020 | ||
4021 | ||
e075ae69 RH |
4022 | /* This function generates code for -fpic that loads %ebx with |
4023 | the return address of the caller and then returns. */ | |
4024 | ||
4025 | void | |
4cf12e7e | 4026 | ix86_asm_file_end (file) |
e075ae69 | 4027 | FILE *file; |
e075ae69 RH |
4028 | { |
4029 | rtx xops[2]; | |
bd09bdeb | 4030 | int regno; |
32b5b1aa | 4031 | |
bd09bdeb | 4032 | for (regno = 0; regno < 8; ++regno) |
7c262518 | 4033 | { |
145aacc2 RH |
4034 | char name[32]; |
4035 | ||
bd09bdeb RH |
4036 | if (! ((pic_labels_used >> regno) & 1)) |
4037 | continue; | |
4038 | ||
145aacc2 | 4039 | get_pc_thunk_name (name, regno); |
bd09bdeb | 4040 | |
145aacc2 RH |
4041 | if (USE_HIDDEN_LINKONCE) |
4042 | { | |
4043 | tree decl; | |
4044 | ||
4045 | decl = build_decl (FUNCTION_DECL, get_identifier (name), | |
4046 | error_mark_node); | |
4047 | TREE_PUBLIC (decl) = 1; | |
4048 | TREE_STATIC (decl) = 1; | |
4049 | DECL_ONE_ONLY (decl) = 1; | |
4050 | ||
4051 | (*targetm.asm_out.unique_section) (decl, 0); | |
4052 | named_section (decl, NULL, 0); | |
4053 | ||
5eb99654 | 4054 | (*targetm.asm_out.globalize_label) (file, name); |
145aacc2 RH |
4055 | fputs ("\t.hidden\t", file); |
4056 | assemble_name (file, name); | |
4057 | fputc ('\n', file); | |
4058 | ASM_DECLARE_FUNCTION_NAME (file, name, decl); | |
4059 | } | |
4060 | else | |
4061 | { | |
4062 | text_section (); | |
4063 | ASM_OUTPUT_LABEL (file, name); | |
4064 | } | |
bd09bdeb RH |
4065 | |
4066 | xops[0] = gen_rtx_REG (SImode, regno); | |
4067 | xops[1] = gen_rtx_MEM (SImode, stack_pointer_rtx); | |
4068 | output_asm_insn ("mov{l}\t{%1, %0|%0, %1}", xops); | |
4069 | output_asm_insn ("ret", xops); | |
7c262518 | 4070 | } |
32b5b1aa | 4071 | } |
32b5b1aa | 4072 | |
c8c03509 | 4073 | /* Emit code for the SET_GOT patterns. */ |
32b5b1aa | 4074 | |
c8c03509 RH |
4075 | const char * |
4076 | output_set_got (dest) | |
4077 | rtx dest; | |
4078 | { | |
4079 | rtx xops[3]; | |
0d7d98ee | 4080 | |
c8c03509 | 4081 | xops[0] = dest; |
5fc0e5df | 4082 | xops[1] = gen_rtx_SYMBOL_REF (Pmode, GOT_SYMBOL_NAME); |
32b5b1aa | 4083 | |
c8c03509 | 4084 | if (! TARGET_DEEP_BRANCH_PREDICTION || !flag_pic) |
32b5b1aa | 4085 | { |
c8c03509 RH |
4086 | xops[2] = gen_rtx_LABEL_REF (Pmode, gen_label_rtx ()); |
4087 | ||
4088 | if (!flag_pic) | |
4089 | output_asm_insn ("mov{l}\t{%2, %0|%0, %2}", xops); | |
4090 | else | |
4091 | output_asm_insn ("call\t%a2", xops); | |
4092 | ||
b069de3b SS |
4093 | #if TARGET_MACHO |
4094 | /* Output the "canonical" label name ("Lxx$pb") here too. This | |
4095 | is what will be referred to by the Mach-O PIC subsystem. */ | |
4096 | ASM_OUTPUT_LABEL (asm_out_file, machopic_function_base_name ()); | |
4097 | #endif | |
c8c03509 RH |
4098 | ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "L", |
4099 | CODE_LABEL_NUMBER (XEXP (xops[2], 0))); | |
4100 | ||
4101 | if (flag_pic) | |
4102 | output_asm_insn ("pop{l}\t%0", xops); | |
32b5b1aa | 4103 | } |
e075ae69 | 4104 | else |
e5cb57e8 | 4105 | { |
145aacc2 RH |
4106 | char name[32]; |
4107 | get_pc_thunk_name (name, REGNO (dest)); | |
bd09bdeb | 4108 | pic_labels_used |= 1 << REGNO (dest); |
f996902d | 4109 | |
145aacc2 | 4110 | xops[2] = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (name)); |
c8c03509 RH |
4111 | xops[2] = gen_rtx_MEM (QImode, xops[2]); |
4112 | output_asm_insn ("call\t%X2", xops); | |
e5cb57e8 | 4113 | } |
e5cb57e8 | 4114 | |
c8c03509 RH |
4115 | if (!flag_pic || TARGET_DEEP_BRANCH_PREDICTION) |
4116 | output_asm_insn ("add{l}\t{%1, %0|%0, %1}", xops); | |
b069de3b | 4117 | else if (!TARGET_MACHO) |
8e9fadc3 | 4118 | output_asm_insn ("add{l}\t{%1+[.-%a2], %0|%0, %a1+(.-%a2)}", xops); |
79325812 | 4119 | |
c8c03509 | 4120 | return ""; |
e9a25f70 | 4121 | } |
8dfe5673 | 4122 | |
0d7d98ee | 4123 | /* Generate an "push" pattern for input ARG. */ |
e9a25f70 | 4124 | |
e075ae69 RH |
4125 | static rtx |
4126 | gen_push (arg) | |
4127 | rtx arg; | |
e9a25f70 | 4128 | { |
c5c76735 | 4129 | return gen_rtx_SET (VOIDmode, |
0d7d98ee JH |
4130 | gen_rtx_MEM (Pmode, |
4131 | gen_rtx_PRE_DEC (Pmode, | |
c5c76735 JL |
4132 | stack_pointer_rtx)), |
4133 | arg); | |
e9a25f70 JL |
4134 | } |
4135 | ||
bd09bdeb RH |
4136 | /* Return >= 0 if there is an unused call-clobbered register available |
4137 | for the entire function. */ | |
4138 | ||
4139 | static unsigned int | |
4140 | ix86_select_alt_pic_regnum () | |
4141 | { | |
4142 | if (current_function_is_leaf && !current_function_profile) | |
4143 | { | |
4144 | int i; | |
4145 | for (i = 2; i >= 0; --i) | |
4146 | if (!regs_ever_live[i]) | |
4147 | return i; | |
4148 | } | |
4149 | ||
4150 | return INVALID_REGNUM; | |
4151 | } | |
fce5a9f2 | 4152 | |
4dd2ac2c JH |
4153 | /* Return 1 if we need to save REGNO. */ |
4154 | static int | |
1020a5ab | 4155 | ix86_save_reg (regno, maybe_eh_return) |
9b690711 | 4156 | unsigned int regno; |
37a58036 | 4157 | int maybe_eh_return; |
1020a5ab | 4158 | { |
bd09bdeb RH |
4159 | if (pic_offset_table_rtx |
4160 | && regno == REAL_PIC_OFFSET_TABLE_REGNUM | |
4161 | && (regs_ever_live[REAL_PIC_OFFSET_TABLE_REGNUM] | |
66edd3b4 | 4162 | || current_function_profile |
1020a5ab | 4163 | || current_function_calls_eh_return)) |
bd09bdeb RH |
4164 | { |
4165 | if (ix86_select_alt_pic_regnum () != INVALID_REGNUM) | |
4166 | return 0; | |
4167 | return 1; | |
4168 | } | |
1020a5ab RH |
4169 | |
4170 | if (current_function_calls_eh_return && maybe_eh_return) | |
4171 | { | |
4172 | unsigned i; | |
4173 | for (i = 0; ; i++) | |
4174 | { | |
b531087a | 4175 | unsigned test = EH_RETURN_DATA_REGNO (i); |
1020a5ab RH |
4176 | if (test == INVALID_REGNUM) |
4177 | break; | |
9b690711 | 4178 | if (test == regno) |
1020a5ab RH |
4179 | return 1; |
4180 | } | |
4181 | } | |
4dd2ac2c | 4182 | |
1020a5ab RH |
4183 | return (regs_ever_live[regno] |
4184 | && !call_used_regs[regno] | |
4185 | && !fixed_regs[regno] | |
4186 | && (regno != HARD_FRAME_POINTER_REGNUM || !frame_pointer_needed)); | |
4dd2ac2c JH |
4187 | } |
4188 | ||
0903fcab JH |
4189 | /* Return number of registers to be saved on the stack. */ |
4190 | ||
4191 | static int | |
4192 | ix86_nsaved_regs () | |
4193 | { | |
4194 | int nregs = 0; | |
0903fcab JH |
4195 | int regno; |
4196 | ||
4dd2ac2c | 4197 | for (regno = FIRST_PSEUDO_REGISTER - 1; regno >= 0; regno--) |
1020a5ab | 4198 | if (ix86_save_reg (regno, true)) |
4dd2ac2c | 4199 | nregs++; |
0903fcab JH |
4200 | return nregs; |
4201 | } | |
4202 | ||
4203 | /* Return the offset between two registers, one to be eliminated, and the other | |
4204 | its replacement, at the start of a routine. */ | |
4205 | ||
4206 | HOST_WIDE_INT | |
4207 | ix86_initial_elimination_offset (from, to) | |
4208 | int from; | |
4209 | int to; | |
4210 | { | |
4dd2ac2c JH |
4211 | struct ix86_frame frame; |
4212 | ix86_compute_frame_layout (&frame); | |
564d80f4 JH |
4213 | |
4214 | if (from == ARG_POINTER_REGNUM && to == HARD_FRAME_POINTER_REGNUM) | |
4dd2ac2c | 4215 | return frame.hard_frame_pointer_offset; |
564d80f4 JH |
4216 | else if (from == FRAME_POINTER_REGNUM |
4217 | && to == HARD_FRAME_POINTER_REGNUM) | |
4dd2ac2c | 4218 | return frame.hard_frame_pointer_offset - frame.frame_pointer_offset; |
0903fcab JH |
4219 | else |
4220 | { | |
564d80f4 JH |
4221 | if (to != STACK_POINTER_REGNUM) |
4222 | abort (); | |
4223 | else if (from == ARG_POINTER_REGNUM) | |
4dd2ac2c | 4224 | return frame.stack_pointer_offset; |
564d80f4 JH |
4225 | else if (from != FRAME_POINTER_REGNUM) |
4226 | abort (); | |
0903fcab | 4227 | else |
4dd2ac2c | 4228 | return frame.stack_pointer_offset - frame.frame_pointer_offset; |
0903fcab JH |
4229 | } |
4230 | } | |
4231 | ||
4dd2ac2c | 4232 | /* Fill structure ix86_frame about frame of currently computed function. */ |
0f290768 | 4233 | |
4dd2ac2c JH |
4234 | static void |
4235 | ix86_compute_frame_layout (frame) | |
4236 | struct ix86_frame *frame; | |
65954bd8 | 4237 | { |
65954bd8 | 4238 | HOST_WIDE_INT total_size; |
564d80f4 | 4239 | int stack_alignment_needed = cfun->stack_alignment_needed / BITS_PER_UNIT; |
44affdae JH |
4240 | int offset; |
4241 | int preferred_alignment = cfun->preferred_stack_boundary / BITS_PER_UNIT; | |
4dd2ac2c | 4242 | HOST_WIDE_INT size = get_frame_size (); |
65954bd8 | 4243 | |
4dd2ac2c | 4244 | frame->nregs = ix86_nsaved_regs (); |
564d80f4 | 4245 | total_size = size; |
65954bd8 | 4246 | |
9ba81eaa | 4247 | /* Skip return address and saved base pointer. */ |
4dd2ac2c JH |
4248 | offset = frame_pointer_needed ? UNITS_PER_WORD * 2 : UNITS_PER_WORD; |
4249 | ||
4250 | frame->hard_frame_pointer_offset = offset; | |
564d80f4 | 4251 | |
fcbfaa65 RK |
4252 | /* Do some sanity checking of stack_alignment_needed and |
4253 | preferred_alignment, since i386 port is the only using those features | |
f710504c | 4254 | that may break easily. */ |
564d80f4 | 4255 | |
44affdae JH |
4256 | if (size && !stack_alignment_needed) |
4257 | abort (); | |
44affdae JH |
4258 | if (preferred_alignment < STACK_BOUNDARY / BITS_PER_UNIT) |
4259 | abort (); | |
4260 | if (preferred_alignment > PREFERRED_STACK_BOUNDARY / BITS_PER_UNIT) | |
4261 | abort (); | |
4262 | if (stack_alignment_needed > PREFERRED_STACK_BOUNDARY / BITS_PER_UNIT) | |
4263 | abort (); | |
564d80f4 | 4264 | |
4dd2ac2c JH |
4265 | if (stack_alignment_needed < STACK_BOUNDARY / BITS_PER_UNIT) |
4266 | stack_alignment_needed = STACK_BOUNDARY / BITS_PER_UNIT; | |
564d80f4 | 4267 | |
4dd2ac2c JH |
4268 | /* Register save area */ |
4269 | offset += frame->nregs * UNITS_PER_WORD; | |
65954bd8 | 4270 | |
8362f420 JH |
4271 | /* Va-arg area */ |
4272 | if (ix86_save_varrargs_registers) | |
4273 | { | |
4274 | offset += X86_64_VARARGS_SIZE; | |
4275 | frame->va_arg_size = X86_64_VARARGS_SIZE; | |
4276 | } | |
4277 | else | |
4278 | frame->va_arg_size = 0; | |
4279 | ||
4dd2ac2c JH |
4280 | /* Align start of frame for local function. */ |
4281 | frame->padding1 = ((offset + stack_alignment_needed - 1) | |
4282 | & -stack_alignment_needed) - offset; | |
f73ad30e | 4283 | |
4dd2ac2c | 4284 | offset += frame->padding1; |
65954bd8 | 4285 | |
4dd2ac2c JH |
4286 | /* Frame pointer points here. */ |
4287 | frame->frame_pointer_offset = offset; | |
54ff41b7 | 4288 | |
4dd2ac2c | 4289 | offset += size; |
65954bd8 | 4290 | |
0b7ae565 RH |
4291 | /* Add outgoing arguments area. Can be skipped if we eliminated |
4292 | all the function calls as dead code. */ | |
4293 | if (ACCUMULATE_OUTGOING_ARGS && !current_function_is_leaf) | |
4dd2ac2c JH |
4294 | { |
4295 | offset += current_function_outgoing_args_size; | |
4296 | frame->outgoing_arguments_size = current_function_outgoing_args_size; | |
4297 | } | |
4298 | else | |
4299 | frame->outgoing_arguments_size = 0; | |
564d80f4 | 4300 | |
002ff5bc RH |
4301 | /* Align stack boundary. Only needed if we're calling another function |
4302 | or using alloca. */ | |
4303 | if (!current_function_is_leaf || current_function_calls_alloca) | |
0b7ae565 RH |
4304 | frame->padding2 = ((offset + preferred_alignment - 1) |
4305 | & -preferred_alignment) - offset; | |
4306 | else | |
4307 | frame->padding2 = 0; | |
4dd2ac2c JH |
4308 | |
4309 | offset += frame->padding2; | |
4310 | ||
4311 | /* We've reached end of stack frame. */ | |
4312 | frame->stack_pointer_offset = offset; | |
4313 | ||
4314 | /* Size prologue needs to allocate. */ | |
4315 | frame->to_allocate = | |
4316 | (size + frame->padding1 + frame->padding2 | |
8362f420 | 4317 | + frame->outgoing_arguments_size + frame->va_arg_size); |
4dd2ac2c | 4318 | |
8362f420 JH |
4319 | if (TARGET_64BIT && TARGET_RED_ZONE && current_function_sp_is_unchanging |
4320 | && current_function_is_leaf) | |
4321 | { | |
4322 | frame->red_zone_size = frame->to_allocate; | |
4323 | if (frame->red_zone_size > RED_ZONE_SIZE - RED_ZONE_RESERVE) | |
4324 | frame->red_zone_size = RED_ZONE_SIZE - RED_ZONE_RESERVE; | |
4325 | } | |
4326 | else | |
4327 | frame->red_zone_size = 0; | |
4328 | frame->to_allocate -= frame->red_zone_size; | |
4329 | frame->stack_pointer_offset -= frame->red_zone_size; | |
4dd2ac2c JH |
4330 | #if 0 |
4331 | fprintf (stderr, "nregs: %i\n", frame->nregs); | |
4332 | fprintf (stderr, "size: %i\n", size); | |
4333 | fprintf (stderr, "alignment1: %i\n", stack_alignment_needed); | |
4334 | fprintf (stderr, "padding1: %i\n", frame->padding1); | |
8362f420 | 4335 | fprintf (stderr, "va_arg: %i\n", frame->va_arg_size); |
4dd2ac2c JH |
4336 | fprintf (stderr, "padding2: %i\n", frame->padding2); |
4337 | fprintf (stderr, "to_allocate: %i\n", frame->to_allocate); | |
8362f420 | 4338 | fprintf (stderr, "red_zone_size: %i\n", frame->red_zone_size); |
4dd2ac2c JH |
4339 | fprintf (stderr, "frame_pointer_offset: %i\n", frame->frame_pointer_offset); |
4340 | fprintf (stderr, "hard_frame_pointer_offset: %i\n", | |
4341 | frame->hard_frame_pointer_offset); | |
4342 | fprintf (stderr, "stack_pointer_offset: %i\n", frame->stack_pointer_offset); | |
4343 | #endif | |
65954bd8 JL |
4344 | } |
4345 | ||
0903fcab JH |
4346 | /* Emit code to save registers in the prologue. */ |
4347 | ||
4348 | static void | |
4349 | ix86_emit_save_regs () | |
4350 | { | |
4351 | register int regno; | |
0903fcab | 4352 | rtx insn; |
0903fcab | 4353 | |
4dd2ac2c | 4354 | for (regno = FIRST_PSEUDO_REGISTER - 1; regno >= 0; regno--) |
1020a5ab | 4355 | if (ix86_save_reg (regno, true)) |
0903fcab | 4356 | { |
0d7d98ee | 4357 | insn = emit_insn (gen_push (gen_rtx_REG (Pmode, regno))); |
0903fcab JH |
4358 | RTX_FRAME_RELATED_P (insn) = 1; |
4359 | } | |
4360 | } | |
4361 | ||
c6036a37 JH |
4362 | /* Emit code to save registers using MOV insns. First register |
4363 | is restored from POINTER + OFFSET. */ | |
4364 | static void | |
4365 | ix86_emit_save_regs_using_mov (pointer, offset) | |
b72f00af RK |
4366 | rtx pointer; |
4367 | HOST_WIDE_INT offset; | |
c6036a37 JH |
4368 | { |
4369 | int regno; | |
4370 | rtx insn; | |
4371 | ||
4372 | for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++) | |
4373 | if (ix86_save_reg (regno, true)) | |
4374 | { | |
b72f00af RK |
4375 | insn = emit_move_insn (adjust_address (gen_rtx_MEM (Pmode, pointer), |
4376 | Pmode, offset), | |
c6036a37 JH |
4377 | gen_rtx_REG (Pmode, regno)); |
4378 | RTX_FRAME_RELATED_P (insn) = 1; | |
4379 | offset += UNITS_PER_WORD; | |
4380 | } | |
4381 | } | |
4382 | ||
0f290768 | 4383 | /* Expand the prologue into a bunch of separate insns. */ |
e075ae69 RH |
4384 | |
4385 | void | |
4386 | ix86_expand_prologue () | |
2a2ab3f9 | 4387 | { |
564d80f4 | 4388 | rtx insn; |
bd09bdeb | 4389 | bool pic_reg_used; |
4dd2ac2c | 4390 | struct ix86_frame frame; |
6ab16dd9 | 4391 | int use_mov = 0; |
c6036a37 | 4392 | HOST_WIDE_INT allocate; |
4dd2ac2c | 4393 | |
2ab0437e | 4394 | if (!optimize_size) |
6ab16dd9 JH |
4395 | { |
4396 | use_fast_prologue_epilogue | |
4397 | = !expensive_function_p (FAST_PROLOGUE_INSN_COUNT); | |
2ab0437e JH |
4398 | if (TARGET_PROLOGUE_USING_MOVE) |
4399 | use_mov = use_fast_prologue_epilogue; | |
6ab16dd9 | 4400 | } |
4dd2ac2c | 4401 | ix86_compute_frame_layout (&frame); |
79325812 | 4402 | |
e075ae69 RH |
4403 | /* Note: AT&T enter does NOT have reversed args. Enter is probably |
4404 | slower on all targets. Also sdb doesn't like it. */ | |
e9a25f70 | 4405 | |
2a2ab3f9 JVA |
4406 | if (frame_pointer_needed) |
4407 | { | |
564d80f4 | 4408 | insn = emit_insn (gen_push (hard_frame_pointer_rtx)); |
e075ae69 | 4409 | RTX_FRAME_RELATED_P (insn) = 1; |
e9a25f70 | 4410 | |
564d80f4 | 4411 | insn = emit_move_insn (hard_frame_pointer_rtx, stack_pointer_rtx); |
e075ae69 | 4412 | RTX_FRAME_RELATED_P (insn) = 1; |
2a2ab3f9 JVA |
4413 | } |
4414 | ||
c6036a37 JH |
4415 | allocate = frame.to_allocate; |
4416 | /* In case we are dealing only with single register and empty frame, | |
4417 | push is equivalent of the mov+add sequence. */ | |
4418 | if (allocate == 0 && frame.nregs <= 1) | |
4419 | use_mov = 0; | |
4420 | ||
4421 | if (!use_mov) | |
4422 | ix86_emit_save_regs (); | |
4423 | else | |
4424 | allocate += frame.nregs * UNITS_PER_WORD; | |
564d80f4 | 4425 | |
c6036a37 | 4426 | if (allocate == 0) |
8dfe5673 | 4427 | ; |
e323735c | 4428 | else if (! TARGET_STACK_PROBE || allocate < CHECK_STACK_LIMIT) |
469ac993 | 4429 | { |
f2042df3 RH |
4430 | insn = emit_insn (gen_pro_epilogue_adjust_stack |
4431 | (stack_pointer_rtx, stack_pointer_rtx, | |
e323735c | 4432 | GEN_INT (-allocate))); |
e075ae69 | 4433 | RTX_FRAME_RELATED_P (insn) = 1; |
469ac993 | 4434 | } |
79325812 | 4435 | else |
8dfe5673 | 4436 | { |
e075ae69 | 4437 | /* ??? Is this only valid for Win32? */ |
e9a25f70 | 4438 | |
e075ae69 | 4439 | rtx arg0, sym; |
e9a25f70 | 4440 | |
8362f420 | 4441 | if (TARGET_64BIT) |
b531087a | 4442 | abort (); |
8362f420 | 4443 | |
e075ae69 | 4444 | arg0 = gen_rtx_REG (SImode, 0); |
c6036a37 | 4445 | emit_move_insn (arg0, GEN_INT (allocate)); |
77a989d1 | 4446 | |
e075ae69 RH |
4447 | sym = gen_rtx_MEM (FUNCTION_MODE, |
4448 | gen_rtx_SYMBOL_REF (Pmode, "_alloca")); | |
32ee7d1d | 4449 | insn = emit_call_insn (gen_call (sym, const0_rtx, constm1_rtx)); |
e075ae69 RH |
4450 | |
4451 | CALL_INSN_FUNCTION_USAGE (insn) | |
276ab4a4 RH |
4452 | = gen_rtx_EXPR_LIST (VOIDmode, gen_rtx_USE (VOIDmode, arg0), |
4453 | CALL_INSN_FUNCTION_USAGE (insn)); | |
e075ae69 | 4454 | } |
c6036a37 JH |
4455 | if (use_mov) |
4456 | { | |
4457 | if (!frame_pointer_needed || !frame.to_allocate) | |
4458 | ix86_emit_save_regs_using_mov (stack_pointer_rtx, frame.to_allocate); | |
4459 | else | |
4460 | ix86_emit_save_regs_using_mov (hard_frame_pointer_rtx, | |
4461 | -frame.nregs * UNITS_PER_WORD); | |
4462 | } | |
e9a25f70 | 4463 | |
84530511 SC |
4464 | #ifdef SUBTARGET_PROLOGUE |
4465 | SUBTARGET_PROLOGUE; | |
0f290768 | 4466 | #endif |
84530511 | 4467 | |
bd09bdeb RH |
4468 | pic_reg_used = false; |
4469 | if (pic_offset_table_rtx | |
4470 | && (regs_ever_live[REAL_PIC_OFFSET_TABLE_REGNUM] | |
4471 | || current_function_profile)) | |
4472 | { | |
4473 | unsigned int alt_pic_reg_used = ix86_select_alt_pic_regnum (); | |
4474 | ||
4475 | if (alt_pic_reg_used != INVALID_REGNUM) | |
4476 | REGNO (pic_offset_table_rtx) = alt_pic_reg_used; | |
4477 | ||
4478 | pic_reg_used = true; | |
4479 | } | |
4480 | ||
e9a25f70 | 4481 | if (pic_reg_used) |
c8c03509 RH |
4482 | { |
4483 | insn = emit_insn (gen_set_got (pic_offset_table_rtx)); | |
4484 | ||
66edd3b4 RH |
4485 | /* Even with accurate pre-reload life analysis, we can wind up |
4486 | deleting all references to the pic register after reload. | |
4487 | Consider if cross-jumping unifies two sides of a branch | |
4488 | controled by a comparison vs the only read from a global. | |
4489 | In which case, allow the set_got to be deleted, though we're | |
4490 | too late to do anything about the ebx save in the prologue. */ | |
c8c03509 RH |
4491 | REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_MAYBE_DEAD, const0_rtx, NULL); |
4492 | } | |
77a989d1 | 4493 | |
66edd3b4 RH |
4494 | /* Prevent function calls from be scheduled before the call to mcount. |
4495 | In the pic_reg_used case, make sure that the got load isn't deleted. */ | |
4496 | if (current_function_profile) | |
4497 | emit_insn (gen_blockage (pic_reg_used ? pic_offset_table_rtx : const0_rtx)); | |
77a989d1 SC |
4498 | } |
4499 | ||
da2d1d3a JH |
4500 | /* Emit code to restore saved registers using MOV insns. First register |
4501 | is restored from POINTER + OFFSET. */ | |
4502 | static void | |
1020a5ab RH |
4503 | ix86_emit_restore_regs_using_mov (pointer, offset, maybe_eh_return) |
4504 | rtx pointer; | |
4505 | int offset; | |
37a58036 | 4506 | int maybe_eh_return; |
da2d1d3a JH |
4507 | { |
4508 | int regno; | |
da2d1d3a | 4509 | |
4dd2ac2c | 4510 | for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++) |
1020a5ab | 4511 | if (ix86_save_reg (regno, maybe_eh_return)) |
da2d1d3a | 4512 | { |
4dd2ac2c | 4513 | emit_move_insn (gen_rtx_REG (Pmode, regno), |
b72f00af RK |
4514 | adjust_address (gen_rtx_MEM (Pmode, pointer), |
4515 | Pmode, offset)); | |
4dd2ac2c | 4516 | offset += UNITS_PER_WORD; |
da2d1d3a JH |
4517 | } |
4518 | } | |
4519 | ||
0f290768 | 4520 | /* Restore function stack, frame, and registers. */ |
e9a25f70 | 4521 | |
2a2ab3f9 | 4522 | void |
1020a5ab RH |
4523 | ix86_expand_epilogue (style) |
4524 | int style; | |
2a2ab3f9 | 4525 | { |
1c71e60e | 4526 | int regno; |
fdb8a883 | 4527 | int sp_valid = !frame_pointer_needed || current_function_sp_is_unchanging; |
4dd2ac2c | 4528 | struct ix86_frame frame; |
65954bd8 | 4529 | HOST_WIDE_INT offset; |
4dd2ac2c JH |
4530 | |
4531 | ix86_compute_frame_layout (&frame); | |
2a2ab3f9 | 4532 | |
a4f31c00 | 4533 | /* Calculate start of saved registers relative to ebp. Special care |
84e306b4 RH |
4534 | must be taken for the normal return case of a function using |
4535 | eh_return: the eax and edx registers are marked as saved, but not | |
4536 | restored along this path. */ | |
4537 | offset = frame.nregs; | |
4538 | if (current_function_calls_eh_return && style != 2) | |
4539 | offset -= 2; | |
4540 | offset *= -UNITS_PER_WORD; | |
2a2ab3f9 | 4541 | |
fdb8a883 JW |
4542 | /* If we're only restoring one register and sp is not valid then |
4543 | using a move instruction to restore the register since it's | |
0f290768 | 4544 | less work than reloading sp and popping the register. |
da2d1d3a JH |
4545 | |
4546 | The default code result in stack adjustment using add/lea instruction, | |
4547 | while this code results in LEAVE instruction (or discrete equivalent), | |
4548 | so it is profitable in some other cases as well. Especially when there | |
4549 | are no registers to restore. We also use this code when TARGET_USE_LEAVE | |
4550 | and there is exactly one register to pop. This heruistic may need some | |
4551 | tuning in future. */ | |
4dd2ac2c | 4552 | if ((!sp_valid && frame.nregs <= 1) |
2ab0437e | 4553 | || (TARGET_EPILOGUE_USING_MOVE |
6ab16dd9 | 4554 | && use_fast_prologue_epilogue |
c6036a37 | 4555 | && (frame.nregs > 1 || frame.to_allocate)) |
4dd2ac2c | 4556 | || (frame_pointer_needed && !frame.nregs && frame.to_allocate) |
2ab0437e | 4557 | || (frame_pointer_needed && TARGET_USE_LEAVE |
6ab16dd9 | 4558 | && use_fast_prologue_epilogue && frame.nregs == 1) |
2ab0437e | 4559 | || current_function_calls_eh_return) |
2a2ab3f9 | 4560 | { |
da2d1d3a JH |
4561 | /* Restore registers. We can use ebp or esp to address the memory |
4562 | locations. If both are available, default to ebp, since offsets | |
4563 | are known to be small. Only exception is esp pointing directly to the | |
4564 | end of block of saved registers, where we may simplify addressing | |
4565 | mode. */ | |
4566 | ||
4dd2ac2c | 4567 | if (!frame_pointer_needed || (sp_valid && !frame.to_allocate)) |
1020a5ab RH |
4568 | ix86_emit_restore_regs_using_mov (stack_pointer_rtx, |
4569 | frame.to_allocate, style == 2); | |
da2d1d3a | 4570 | else |
1020a5ab RH |
4571 | ix86_emit_restore_regs_using_mov (hard_frame_pointer_rtx, |
4572 | offset, style == 2); | |
4573 | ||
4574 | /* eh_return epilogues need %ecx added to the stack pointer. */ | |
4575 | if (style == 2) | |
4576 | { | |
4577 | rtx tmp, sa = EH_RETURN_STACKADJ_RTX; | |
2a2ab3f9 | 4578 | |
1020a5ab RH |
4579 | if (frame_pointer_needed) |
4580 | { | |
4581 | tmp = gen_rtx_PLUS (Pmode, hard_frame_pointer_rtx, sa); | |
4582 | tmp = plus_constant (tmp, UNITS_PER_WORD); | |
4583 | emit_insn (gen_rtx_SET (VOIDmode, sa, tmp)); | |
4584 | ||
4585 | tmp = gen_rtx_MEM (Pmode, hard_frame_pointer_rtx); | |
4586 | emit_move_insn (hard_frame_pointer_rtx, tmp); | |
4587 | ||
4588 | emit_insn (gen_pro_epilogue_adjust_stack | |
f2042df3 | 4589 | (stack_pointer_rtx, sa, const0_rtx)); |
1020a5ab RH |
4590 | } |
4591 | else | |
4592 | { | |
4593 | tmp = gen_rtx_PLUS (Pmode, stack_pointer_rtx, sa); | |
4594 | tmp = plus_constant (tmp, (frame.to_allocate | |
4595 | + frame.nregs * UNITS_PER_WORD)); | |
4596 | emit_insn (gen_rtx_SET (VOIDmode, stack_pointer_rtx, tmp)); | |
4597 | } | |
4598 | } | |
4599 | else if (!frame_pointer_needed) | |
f2042df3 RH |
4600 | emit_insn (gen_pro_epilogue_adjust_stack |
4601 | (stack_pointer_rtx, stack_pointer_rtx, | |
4602 | GEN_INT (frame.to_allocate | |
4603 | + frame.nregs * UNITS_PER_WORD))); | |
0f290768 | 4604 | /* If not an i386, mov & pop is faster than "leave". */ |
6ab16dd9 | 4605 | else if (TARGET_USE_LEAVE || optimize_size || !use_fast_prologue_epilogue) |
8362f420 | 4606 | emit_insn (TARGET_64BIT ? gen_leave_rex64 () : gen_leave ()); |
c8c5cb99 | 4607 | else |
2a2ab3f9 | 4608 | { |
1c71e60e JH |
4609 | emit_insn (gen_pro_epilogue_adjust_stack (stack_pointer_rtx, |
4610 | hard_frame_pointer_rtx, | |
f2042df3 | 4611 | const0_rtx)); |
8362f420 JH |
4612 | if (TARGET_64BIT) |
4613 | emit_insn (gen_popdi1 (hard_frame_pointer_rtx)); | |
4614 | else | |
4615 | emit_insn (gen_popsi1 (hard_frame_pointer_rtx)); | |
e9a25f70 JL |
4616 | } |
4617 | } | |
1c71e60e | 4618 | else |
68f654ec | 4619 | { |
1c71e60e JH |
4620 | /* First step is to deallocate the stack frame so that we can |
4621 | pop the registers. */ | |
4622 | if (!sp_valid) | |
4623 | { | |
4624 | if (!frame_pointer_needed) | |
4625 | abort (); | |
4626 | emit_insn (gen_pro_epilogue_adjust_stack (stack_pointer_rtx, | |
4627 | hard_frame_pointer_rtx, | |
f2042df3 | 4628 | GEN_INT (offset))); |
1c71e60e | 4629 | } |
4dd2ac2c | 4630 | else if (frame.to_allocate) |
f2042df3 RH |
4631 | emit_insn (gen_pro_epilogue_adjust_stack |
4632 | (stack_pointer_rtx, stack_pointer_rtx, | |
4633 | GEN_INT (frame.to_allocate))); | |
1c71e60e | 4634 | |
4dd2ac2c | 4635 | for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++) |
1020a5ab | 4636 | if (ix86_save_reg (regno, false)) |
8362f420 JH |
4637 | { |
4638 | if (TARGET_64BIT) | |
4639 | emit_insn (gen_popdi1 (gen_rtx_REG (Pmode, regno))); | |
4640 | else | |
4641 | emit_insn (gen_popsi1 (gen_rtx_REG (Pmode, regno))); | |
4642 | } | |
4dd2ac2c | 4643 | if (frame_pointer_needed) |
8362f420 | 4644 | { |
f5143c46 | 4645 | /* Leave results in shorter dependency chains on CPUs that are |
2ab0437e JH |
4646 | able to grok it fast. */ |
4647 | if (TARGET_USE_LEAVE) | |
4648 | emit_insn (TARGET_64BIT ? gen_leave_rex64 () : gen_leave ()); | |
4649 | else if (TARGET_64BIT) | |
8362f420 JH |
4650 | emit_insn (gen_popdi1 (hard_frame_pointer_rtx)); |
4651 | else | |
4652 | emit_insn (gen_popsi1 (hard_frame_pointer_rtx)); | |
4653 | } | |
68f654ec | 4654 | } |
68f654ec | 4655 | |
cbbf65e0 | 4656 | /* Sibcall epilogues don't want a return instruction. */ |
1020a5ab | 4657 | if (style == 0) |
cbbf65e0 RH |
4658 | return; |
4659 | ||
2a2ab3f9 JVA |
4660 | if (current_function_pops_args && current_function_args_size) |
4661 | { | |
e075ae69 | 4662 | rtx popc = GEN_INT (current_function_pops_args); |
2a2ab3f9 | 4663 | |
b8c752c8 UD |
4664 | /* i386 can only pop 64K bytes. If asked to pop more, pop |
4665 | return address, do explicit add, and jump indirectly to the | |
0f290768 | 4666 | caller. */ |
2a2ab3f9 | 4667 | |
b8c752c8 | 4668 | if (current_function_pops_args >= 65536) |
2a2ab3f9 | 4669 | { |
e075ae69 | 4670 | rtx ecx = gen_rtx_REG (SImode, 2); |
e9a25f70 | 4671 | |
8362f420 JH |
4672 | /* There are is no "pascal" calling convention in 64bit ABI. */ |
4673 | if (TARGET_64BIT) | |
b531087a | 4674 | abort (); |
8362f420 | 4675 | |
e075ae69 RH |
4676 | emit_insn (gen_popsi1 (ecx)); |
4677 | emit_insn (gen_addsi3 (stack_pointer_rtx, stack_pointer_rtx, popc)); | |
11837777 | 4678 | emit_jump_insn (gen_return_indirect_internal (ecx)); |
e9a25f70 | 4679 | } |
79325812 | 4680 | else |
e075ae69 RH |
4681 | emit_jump_insn (gen_return_pop_internal (popc)); |
4682 | } | |
4683 | else | |
4684 | emit_jump_insn (gen_return_internal ()); | |
4685 | } | |
bd09bdeb RH |
4686 | |
4687 | /* Reset from the function's potential modifications. */ | |
4688 | ||
4689 | static void | |
4690 | ix86_output_function_epilogue (file, size) | |
4691 | FILE *file ATTRIBUTE_UNUSED; | |
4692 | HOST_WIDE_INT size ATTRIBUTE_UNUSED; | |
4693 | { | |
4694 | if (pic_offset_table_rtx) | |
4695 | REGNO (pic_offset_table_rtx) = REAL_PIC_OFFSET_TABLE_REGNUM; | |
4696 | } | |
e075ae69 RH |
4697 | \f |
4698 | /* Extract the parts of an RTL expression that is a valid memory address | |
b446e5a2 JH |
4699 | for an instruction. Return 0 if the structure of the address is |
4700 | grossly off. Return -1 if the address contains ASHIFT, so it is not | |
4701 | strictly valid, but still used for computing length of lea instruction. | |
4702 | */ | |
e075ae69 RH |
4703 | |
4704 | static int | |
4705 | ix86_decompose_address (addr, out) | |
4706 | register rtx addr; | |
4707 | struct ix86_address *out; | |
4708 | { | |
4709 | rtx base = NULL_RTX; | |
4710 | rtx index = NULL_RTX; | |
4711 | rtx disp = NULL_RTX; | |
4712 | HOST_WIDE_INT scale = 1; | |
4713 | rtx scale_rtx = NULL_RTX; | |
b446e5a2 | 4714 | int retval = 1; |
e075ae69 | 4715 | |
1540f9eb | 4716 | if (REG_P (addr) || GET_CODE (addr) == SUBREG) |
e075ae69 RH |
4717 | base = addr; |
4718 | else if (GET_CODE (addr) == PLUS) | |
4719 | { | |
4720 | rtx op0 = XEXP (addr, 0); | |
4721 | rtx op1 = XEXP (addr, 1); | |
4722 | enum rtx_code code0 = GET_CODE (op0); | |
4723 | enum rtx_code code1 = GET_CODE (op1); | |
4724 | ||
4725 | if (code0 == REG || code0 == SUBREG) | |
4726 | { | |
4727 | if (code1 == REG || code1 == SUBREG) | |
4728 | index = op0, base = op1; /* index + base */ | |
4729 | else | |
4730 | base = op0, disp = op1; /* base + displacement */ | |
4731 | } | |
4732 | else if (code0 == MULT) | |
e9a25f70 | 4733 | { |
e075ae69 RH |
4734 | index = XEXP (op0, 0); |
4735 | scale_rtx = XEXP (op0, 1); | |
4736 | if (code1 == REG || code1 == SUBREG) | |
4737 | base = op1; /* index*scale + base */ | |
e9a25f70 | 4738 | else |
e075ae69 RH |
4739 | disp = op1; /* index*scale + disp */ |
4740 | } | |
4741 | else if (code0 == PLUS && GET_CODE (XEXP (op0, 0)) == MULT) | |
4742 | { | |
4743 | index = XEXP (XEXP (op0, 0), 0); /* index*scale + base + disp */ | |
4744 | scale_rtx = XEXP (XEXP (op0, 0), 1); | |
4745 | base = XEXP (op0, 1); | |
4746 | disp = op1; | |
2a2ab3f9 | 4747 | } |
e075ae69 RH |
4748 | else if (code0 == PLUS) |
4749 | { | |
4750 | index = XEXP (op0, 0); /* index + base + disp */ | |
4751 | base = XEXP (op0, 1); | |
4752 | disp = op1; | |
4753 | } | |
4754 | else | |
b446e5a2 | 4755 | return 0; |
e075ae69 RH |
4756 | } |
4757 | else if (GET_CODE (addr) == MULT) | |
4758 | { | |
4759 | index = XEXP (addr, 0); /* index*scale */ | |
4760 | scale_rtx = XEXP (addr, 1); | |
4761 | } | |
4762 | else if (GET_CODE (addr) == ASHIFT) | |
4763 | { | |
4764 | rtx tmp; | |
4765 | ||
4766 | /* We're called for lea too, which implements ashift on occasion. */ | |
4767 | index = XEXP (addr, 0); | |
4768 | tmp = XEXP (addr, 1); | |
4769 | if (GET_CODE (tmp) != CONST_INT) | |
b446e5a2 | 4770 | return 0; |
e075ae69 RH |
4771 | scale = INTVAL (tmp); |
4772 | if ((unsigned HOST_WIDE_INT) scale > 3) | |
b446e5a2 | 4773 | return 0; |
e075ae69 | 4774 | scale = 1 << scale; |
b446e5a2 | 4775 | retval = -1; |
2a2ab3f9 | 4776 | } |
2a2ab3f9 | 4777 | else |
e075ae69 RH |
4778 | disp = addr; /* displacement */ |
4779 | ||
4780 | /* Extract the integral value of scale. */ | |
4781 | if (scale_rtx) | |
e9a25f70 | 4782 | { |
e075ae69 | 4783 | if (GET_CODE (scale_rtx) != CONST_INT) |
b446e5a2 | 4784 | return 0; |
e075ae69 | 4785 | scale = INTVAL (scale_rtx); |
e9a25f70 | 4786 | } |
3b3c6a3f | 4787 | |
e075ae69 RH |
4788 | /* Allow arg pointer and stack pointer as index if there is not scaling */ |
4789 | if (base && index && scale == 1 | |
564d80f4 JH |
4790 | && (index == arg_pointer_rtx || index == frame_pointer_rtx |
4791 | || index == stack_pointer_rtx)) | |
e075ae69 RH |
4792 | { |
4793 | rtx tmp = base; | |
4794 | base = index; | |
4795 | index = tmp; | |
4796 | } | |
4797 | ||
4798 | /* Special case: %ebp cannot be encoded as a base without a displacement. */ | |
564d80f4 JH |
4799 | if ((base == hard_frame_pointer_rtx |
4800 | || base == frame_pointer_rtx | |
4801 | || base == arg_pointer_rtx) && !disp) | |
e075ae69 RH |
4802 | disp = const0_rtx; |
4803 | ||
4804 | /* Special case: on K6, [%esi] makes the instruction vector decoded. | |
4805 | Avoid this by transforming to [%esi+0]. */ | |
4806 | if (ix86_cpu == PROCESSOR_K6 && !optimize_size | |
4807 | && base && !index && !disp | |
329e1d01 | 4808 | && REG_P (base) |
e075ae69 RH |
4809 | && REGNO_REG_CLASS (REGNO (base)) == SIREG) |
4810 | disp = const0_rtx; | |
4811 | ||
4812 | /* Special case: encode reg+reg instead of reg*2. */ | |
4813 | if (!base && index && scale && scale == 2) | |
4814 | base = index, scale = 1; | |
0f290768 | 4815 | |
e075ae69 RH |
4816 | /* Special case: scaling cannot be encoded without base or displacement. */ |
4817 | if (!base && !disp && index && scale != 1) | |
4818 | disp = const0_rtx; | |
4819 | ||
4820 | out->base = base; | |
4821 | out->index = index; | |
4822 | out->disp = disp; | |
4823 | out->scale = scale; | |
3b3c6a3f | 4824 | |
b446e5a2 | 4825 | return retval; |
e075ae69 | 4826 | } |
01329426 JH |
4827 | \f |
4828 | /* Return cost of the memory address x. | |
4829 | For i386, it is better to use a complex address than let gcc copy | |
4830 | the address into a reg and make a new pseudo. But not if the address | |
4831 | requires to two regs - that would mean more pseudos with longer | |
4832 | lifetimes. */ | |
4833 | int | |
4834 | ix86_address_cost (x) | |
4835 | rtx x; | |
4836 | { | |
4837 | struct ix86_address parts; | |
4838 | int cost = 1; | |
3b3c6a3f | 4839 | |
01329426 JH |
4840 | if (!ix86_decompose_address (x, &parts)) |
4841 | abort (); | |
4842 | ||
1540f9eb JH |
4843 | if (parts.base && GET_CODE (parts.base) == SUBREG) |
4844 | parts.base = SUBREG_REG (parts.base); | |
4845 | if (parts.index && GET_CODE (parts.index) == SUBREG) | |
4846 | parts.index = SUBREG_REG (parts.index); | |
4847 | ||
01329426 JH |
4848 | /* More complex memory references are better. */ |
4849 | if (parts.disp && parts.disp != const0_rtx) | |
4850 | cost--; | |
4851 | ||
4852 | /* Attempt to minimize number of registers in the address. */ | |
4853 | if ((parts.base | |
4854 | && (!REG_P (parts.base) || REGNO (parts.base) >= FIRST_PSEUDO_REGISTER)) | |
4855 | || (parts.index | |
4856 | && (!REG_P (parts.index) | |
4857 | || REGNO (parts.index) >= FIRST_PSEUDO_REGISTER))) | |
4858 | cost++; | |
4859 | ||
4860 | if (parts.base | |
4861 | && (!REG_P (parts.base) || REGNO (parts.base) >= FIRST_PSEUDO_REGISTER) | |
4862 | && parts.index | |
4863 | && (!REG_P (parts.index) || REGNO (parts.index) >= FIRST_PSEUDO_REGISTER) | |
4864 | && parts.base != parts.index) | |
4865 | cost++; | |
4866 | ||
4867 | /* AMD-K6 don't like addresses with ModR/M set to 00_xxx_100b, | |
4868 | since it's predecode logic can't detect the length of instructions | |
4869 | and it degenerates to vector decoded. Increase cost of such | |
4870 | addresses here. The penalty is minimally 2 cycles. It may be worthwhile | |
0f290768 | 4871 | to split such addresses or even refuse such addresses at all. |
01329426 JH |
4872 | |
4873 | Following addressing modes are affected: | |
4874 | [base+scale*index] | |
4875 | [scale*index+disp] | |
4876 | [base+index] | |
0f290768 | 4877 | |
01329426 JH |
4878 | The first and last case may be avoidable by explicitly coding the zero in |
4879 | memory address, but I don't have AMD-K6 machine handy to check this | |
4880 | theory. */ | |
4881 | ||
4882 | if (TARGET_K6 | |
4883 | && ((!parts.disp && parts.base && parts.index && parts.scale != 1) | |
4884 | || (parts.disp && !parts.base && parts.index && parts.scale != 1) | |
4885 | || (!parts.disp && parts.base && parts.index && parts.scale == 1))) | |
4886 | cost += 10; | |
0f290768 | 4887 | |
01329426 JH |
4888 | return cost; |
4889 | } | |
4890 | \f | |
b949ea8b JW |
4891 | /* If X is a machine specific address (i.e. a symbol or label being |
4892 | referenced as a displacement from the GOT implemented using an | |
4893 | UNSPEC), then return the base term. Otherwise return X. */ | |
4894 | ||
4895 | rtx | |
4896 | ix86_find_base_term (x) | |
4897 | rtx x; | |
4898 | { | |
4899 | rtx term; | |
4900 | ||
6eb791fc JH |
4901 | if (TARGET_64BIT) |
4902 | { | |
4903 | if (GET_CODE (x) != CONST) | |
4904 | return x; | |
4905 | term = XEXP (x, 0); | |
4906 | if (GET_CODE (term) == PLUS | |
4907 | && (GET_CODE (XEXP (term, 1)) == CONST_INT | |
4908 | || GET_CODE (XEXP (term, 1)) == CONST_DOUBLE)) | |
4909 | term = XEXP (term, 0); | |
4910 | if (GET_CODE (term) != UNSPEC | |
8ee41eaf | 4911 | || XINT (term, 1) != UNSPEC_GOTPCREL) |
6eb791fc JH |
4912 | return x; |
4913 | ||
4914 | term = XVECEXP (term, 0, 0); | |
4915 | ||
4916 | if (GET_CODE (term) != SYMBOL_REF | |
4917 | && GET_CODE (term) != LABEL_REF) | |
4918 | return x; | |
4919 | ||
4920 | return term; | |
4921 | } | |
4922 | ||
b949ea8b JW |
4923 | if (GET_CODE (x) != PLUS |
4924 | || XEXP (x, 0) != pic_offset_table_rtx | |
4925 | || GET_CODE (XEXP (x, 1)) != CONST) | |
4926 | return x; | |
4927 | ||
4928 | term = XEXP (XEXP (x, 1), 0); | |
4929 | ||
4930 | if (GET_CODE (term) == PLUS && GET_CODE (XEXP (term, 1)) == CONST_INT) | |
4931 | term = XEXP (term, 0); | |
4932 | ||
4933 | if (GET_CODE (term) != UNSPEC | |
8ee41eaf | 4934 | || XINT (term, 1) != UNSPEC_GOTOFF) |
b949ea8b JW |
4935 | return x; |
4936 | ||
4937 | term = XVECEXP (term, 0, 0); | |
4938 | ||
4939 | if (GET_CODE (term) != SYMBOL_REF | |
4940 | && GET_CODE (term) != LABEL_REF) | |
4941 | return x; | |
4942 | ||
4943 | return term; | |
4944 | } | |
4945 | \f | |
f996902d RH |
4946 | /* Determine if a given RTX is a valid constant. We already know this |
4947 | satisfies CONSTANT_P. */ | |
4948 | ||
4949 | bool | |
4950 | legitimate_constant_p (x) | |
4951 | rtx x; | |
4952 | { | |
4953 | rtx inner; | |
4954 | ||
4955 | switch (GET_CODE (x)) | |
4956 | { | |
4957 | case SYMBOL_REF: | |
4958 | /* TLS symbols are not constant. */ | |
4959 | if (tls_symbolic_operand (x, Pmode)) | |
4960 | return false; | |
4961 | break; | |
4962 | ||
4963 | case CONST: | |
4964 | inner = XEXP (x, 0); | |
4965 | ||
4966 | /* Offsets of TLS symbols are never valid. | |
4967 | Discourage CSE from creating them. */ | |
4968 | if (GET_CODE (inner) == PLUS | |
4969 | && tls_symbolic_operand (XEXP (inner, 0), Pmode)) | |
4970 | return false; | |
4971 | ||
4972 | /* Only some unspecs are valid as "constants". */ | |
4973 | if (GET_CODE (inner) == UNSPEC) | |
4974 | switch (XINT (inner, 1)) | |
4975 | { | |
4976 | case UNSPEC_TPOFF: | |
4977 | return local_exec_symbolic_operand (XVECEXP (inner, 0, 0), Pmode); | |
f996902d RH |
4978 | default: |
4979 | return false; | |
4980 | } | |
4981 | break; | |
4982 | ||
4983 | default: | |
4984 | break; | |
4985 | } | |
4986 | ||
4987 | /* Otherwise we handle everything else in the move patterns. */ | |
4988 | return true; | |
4989 | } | |
4990 | ||
4991 | /* Determine if a given RTX is a valid constant address. */ | |
4992 | ||
4993 | bool | |
4994 | constant_address_p (x) | |
4995 | rtx x; | |
4996 | { | |
4997 | switch (GET_CODE (x)) | |
4998 | { | |
4999 | case LABEL_REF: | |
5000 | case CONST_INT: | |
5001 | return true; | |
5002 | ||
5003 | case CONST_DOUBLE: | |
5004 | return TARGET_64BIT; | |
5005 | ||
5006 | case CONST: | |
b069de3b SS |
5007 | /* For Mach-O, really believe the CONST. */ |
5008 | if (TARGET_MACHO) | |
5009 | return true; | |
5010 | /* Otherwise fall through. */ | |
f996902d RH |
5011 | case SYMBOL_REF: |
5012 | return !flag_pic && legitimate_constant_p (x); | |
5013 | ||
5014 | default: | |
5015 | return false; | |
5016 | } | |
5017 | } | |
5018 | ||
5019 | /* Nonzero if the constant value X is a legitimate general operand | |
fce5a9f2 | 5020 | when generating PIC code. It is given that flag_pic is on and |
f996902d RH |
5021 | that X satisfies CONSTANT_P or is a CONST_DOUBLE. */ |
5022 | ||
5023 | bool | |
5024 | legitimate_pic_operand_p (x) | |
5025 | rtx x; | |
5026 | { | |
5027 | rtx inner; | |
5028 | ||
5029 | switch (GET_CODE (x)) | |
5030 | { | |
5031 | case CONST: | |
5032 | inner = XEXP (x, 0); | |
5033 | ||
5034 | /* Only some unspecs are valid as "constants". */ | |
5035 | if (GET_CODE (inner) == UNSPEC) | |
5036 | switch (XINT (inner, 1)) | |
5037 | { | |
5038 | case UNSPEC_TPOFF: | |
5039 | return local_exec_symbolic_operand (XVECEXP (inner, 0, 0), Pmode); | |
f996902d RH |
5040 | default: |
5041 | return false; | |
5042 | } | |
5043 | /* FALLTHRU */ | |
5044 | ||
5045 | case SYMBOL_REF: | |
5046 | case LABEL_REF: | |
5047 | return legitimate_pic_address_disp_p (x); | |
5048 | ||
5049 | default: | |
5050 | return true; | |
5051 | } | |
5052 | } | |
5053 | ||
e075ae69 RH |
5054 | /* Determine if a given CONST RTX is a valid memory displacement |
5055 | in PIC mode. */ | |
0f290768 | 5056 | |
59be65f6 | 5057 | int |
91bb873f RH |
5058 | legitimate_pic_address_disp_p (disp) |
5059 | register rtx disp; | |
5060 | { | |
f996902d RH |
5061 | bool saw_plus; |
5062 | ||
6eb791fc JH |
5063 | /* In 64bit mode we can allow direct addresses of symbols and labels |
5064 | when they are not dynamic symbols. */ | |
5065 | if (TARGET_64BIT) | |
5066 | { | |
5067 | rtx x = disp; | |
5068 | if (GET_CODE (disp) == CONST) | |
5069 | x = XEXP (disp, 0); | |
5070 | /* ??? Handle PIC code models */ | |
5071 | if (GET_CODE (x) == PLUS | |
5072 | && (GET_CODE (XEXP (x, 1)) == CONST_INT | |
5073 | && ix86_cmodel == CM_SMALL_PIC | |
5074 | && INTVAL (XEXP (x, 1)) < 1024*1024*1024 | |
5075 | && INTVAL (XEXP (x, 1)) > -1024*1024*1024)) | |
5076 | x = XEXP (x, 0); | |
5077 | if (local_symbolic_operand (x, Pmode)) | |
5078 | return 1; | |
5079 | } | |
91bb873f RH |
5080 | if (GET_CODE (disp) != CONST) |
5081 | return 0; | |
5082 | disp = XEXP (disp, 0); | |
5083 | ||
6eb791fc JH |
5084 | if (TARGET_64BIT) |
5085 | { | |
5086 | /* We are unsafe to allow PLUS expressions. This limit allowed distance | |
5087 | of GOT tables. We should not need these anyway. */ | |
5088 | if (GET_CODE (disp) != UNSPEC | |
8ee41eaf | 5089 | || XINT (disp, 1) != UNSPEC_GOTPCREL) |
6eb791fc JH |
5090 | return 0; |
5091 | ||
5092 | if (GET_CODE (XVECEXP (disp, 0, 0)) != SYMBOL_REF | |
5093 | && GET_CODE (XVECEXP (disp, 0, 0)) != LABEL_REF) | |
5094 | return 0; | |
5095 | return 1; | |
5096 | } | |
5097 | ||
f996902d | 5098 | saw_plus = false; |
91bb873f RH |
5099 | if (GET_CODE (disp) == PLUS) |
5100 | { | |
5101 | if (GET_CODE (XEXP (disp, 1)) != CONST_INT) | |
5102 | return 0; | |
5103 | disp = XEXP (disp, 0); | |
f996902d | 5104 | saw_plus = true; |
91bb873f RH |
5105 | } |
5106 | ||
b069de3b SS |
5107 | /* Allow {LABEL | SYMBOL}_REF - SYMBOL_REF-FOR-PICBASE for Mach-O. */ |
5108 | if (TARGET_MACHO && GET_CODE (disp) == MINUS) | |
5109 | { | |
5110 | if (GET_CODE (XEXP (disp, 0)) == LABEL_REF | |
5111 | || GET_CODE (XEXP (disp, 0)) == SYMBOL_REF) | |
5112 | if (GET_CODE (XEXP (disp, 1)) == SYMBOL_REF) | |
5113 | { | |
5114 | const char *sym_name = XSTR (XEXP (disp, 1), 0); | |
5115 | if (strstr (sym_name, "$pb") != 0) | |
5116 | return 1; | |
5117 | } | |
5118 | } | |
5119 | ||
8ee41eaf | 5120 | if (GET_CODE (disp) != UNSPEC) |
91bb873f RH |
5121 | return 0; |
5122 | ||
623fe810 RH |
5123 | switch (XINT (disp, 1)) |
5124 | { | |
8ee41eaf | 5125 | case UNSPEC_GOT: |
f996902d RH |
5126 | if (saw_plus) |
5127 | return false; | |
623fe810 | 5128 | return GET_CODE (XVECEXP (disp, 0, 0)) == SYMBOL_REF; |
8ee41eaf | 5129 | case UNSPEC_GOTOFF: |
623fe810 | 5130 | return local_symbolic_operand (XVECEXP (disp, 0, 0), Pmode); |
f996902d | 5131 | case UNSPEC_GOTTPOFF: |
dea73790 JJ |
5132 | case UNSPEC_GOTNTPOFF: |
5133 | case UNSPEC_INDNTPOFF: | |
f996902d RH |
5134 | if (saw_plus) |
5135 | return false; | |
5136 | return initial_exec_symbolic_operand (XVECEXP (disp, 0, 0), Pmode); | |
5137 | case UNSPEC_NTPOFF: | |
f996902d RH |
5138 | return local_exec_symbolic_operand (XVECEXP (disp, 0, 0), Pmode); |
5139 | case UNSPEC_DTPOFF: | |
f996902d | 5140 | return local_dynamic_symbolic_operand (XVECEXP (disp, 0, 0), Pmode); |
623fe810 | 5141 | } |
fce5a9f2 | 5142 | |
623fe810 | 5143 | return 0; |
91bb873f RH |
5144 | } |
5145 | ||
e075ae69 RH |
5146 | /* GO_IF_LEGITIMATE_ADDRESS recognizes an RTL expression that is a valid |
5147 | memory address for an instruction. The MODE argument is the machine mode | |
5148 | for the MEM expression that wants to use this address. | |
5149 | ||
5150 | It only recognizes address in canonical form. LEGITIMIZE_ADDRESS should | |
5151 | convert common non-canonical forms to canonical form so that they will | |
5152 | be recognized. */ | |
5153 | ||
3b3c6a3f MM |
5154 | int |
5155 | legitimate_address_p (mode, addr, strict) | |
5156 | enum machine_mode mode; | |
5157 | register rtx addr; | |
5158 | int strict; | |
5159 | { | |
e075ae69 RH |
5160 | struct ix86_address parts; |
5161 | rtx base, index, disp; | |
5162 | HOST_WIDE_INT scale; | |
5163 | const char *reason = NULL; | |
5164 | rtx reason_rtx = NULL_RTX; | |
3b3c6a3f MM |
5165 | |
5166 | if (TARGET_DEBUG_ADDR) | |
5167 | { | |
5168 | fprintf (stderr, | |
e9a25f70 | 5169 | "\n======\nGO_IF_LEGITIMATE_ADDRESS, mode = %s, strict = %d\n", |
3b3c6a3f | 5170 | GET_MODE_NAME (mode), strict); |
3b3c6a3f MM |
5171 | debug_rtx (addr); |
5172 | } | |
5173 | ||
9e20be0c JJ |
5174 | if (GET_CODE (addr) == UNSPEC && XINT (addr, 1) == UNSPEC_TP) |
5175 | { | |
5176 | if (TARGET_DEBUG_ADDR) | |
5177 | fprintf (stderr, "Success.\n"); | |
5178 | return TRUE; | |
5179 | } | |
5180 | ||
b446e5a2 | 5181 | if (ix86_decompose_address (addr, &parts) <= 0) |
3b3c6a3f | 5182 | { |
e075ae69 | 5183 | reason = "decomposition failed"; |
50e60bc3 | 5184 | goto report_error; |
3b3c6a3f MM |
5185 | } |
5186 | ||
e075ae69 RH |
5187 | base = parts.base; |
5188 | index = parts.index; | |
5189 | disp = parts.disp; | |
5190 | scale = parts.scale; | |
91f0226f | 5191 | |
e075ae69 | 5192 | /* Validate base register. |
e9a25f70 JL |
5193 | |
5194 | Don't allow SUBREG's here, it can lead to spill failures when the base | |
3d771dfd MM |
5195 | is one word out of a two word structure, which is represented internally |
5196 | as a DImode int. */ | |
e9a25f70 | 5197 | |
3b3c6a3f MM |
5198 | if (base) |
5199 | { | |
1540f9eb | 5200 | rtx reg; |
e075ae69 RH |
5201 | reason_rtx = base; |
5202 | ||
1540f9eb JH |
5203 | if (GET_CODE (base) == SUBREG) |
5204 | reg = SUBREG_REG (base); | |
5205 | else | |
5206 | reg = base; | |
5207 | ||
5208 | if (GET_CODE (reg) != REG) | |
3b3c6a3f | 5209 | { |
e075ae69 | 5210 | reason = "base is not a register"; |
50e60bc3 | 5211 | goto report_error; |
3b3c6a3f MM |
5212 | } |
5213 | ||
c954bd01 RH |
5214 | if (GET_MODE (base) != Pmode) |
5215 | { | |
e075ae69 | 5216 | reason = "base is not in Pmode"; |
50e60bc3 | 5217 | goto report_error; |
c954bd01 RH |
5218 | } |
5219 | ||
1540f9eb JH |
5220 | if ((strict && ! REG_OK_FOR_BASE_STRICT_P (reg)) |
5221 | || (! strict && ! REG_OK_FOR_BASE_NONSTRICT_P (reg))) | |
3b3c6a3f | 5222 | { |
e075ae69 | 5223 | reason = "base is not valid"; |
50e60bc3 | 5224 | goto report_error; |
3b3c6a3f MM |
5225 | } |
5226 | } | |
5227 | ||
e075ae69 | 5228 | /* Validate index register. |
e9a25f70 JL |
5229 | |
5230 | Don't allow SUBREG's here, it can lead to spill failures when the index | |
3d771dfd MM |
5231 | is one word out of a two word structure, which is represented internally |
5232 | as a DImode int. */ | |
e075ae69 RH |
5233 | |
5234 | if (index) | |
3b3c6a3f | 5235 | { |
1540f9eb | 5236 | rtx reg; |
e075ae69 RH |
5237 | reason_rtx = index; |
5238 | ||
1540f9eb JH |
5239 | if (GET_CODE (index) == SUBREG) |
5240 | reg = SUBREG_REG (index); | |
5241 | else | |
5242 | reg = index; | |
5243 | ||
5244 | if (GET_CODE (reg) != REG) | |
3b3c6a3f | 5245 | { |
e075ae69 | 5246 | reason = "index is not a register"; |
50e60bc3 | 5247 | goto report_error; |
3b3c6a3f MM |
5248 | } |
5249 | ||
e075ae69 | 5250 | if (GET_MODE (index) != Pmode) |
c954bd01 | 5251 | { |
e075ae69 | 5252 | reason = "index is not in Pmode"; |
50e60bc3 | 5253 | goto report_error; |
c954bd01 RH |
5254 | } |
5255 | ||
1540f9eb JH |
5256 | if ((strict && ! REG_OK_FOR_INDEX_STRICT_P (reg)) |
5257 | || (! strict && ! REG_OK_FOR_INDEX_NONSTRICT_P (reg))) | |
3b3c6a3f | 5258 | { |
e075ae69 | 5259 | reason = "index is not valid"; |
50e60bc3 | 5260 | goto report_error; |
3b3c6a3f MM |
5261 | } |
5262 | } | |
3b3c6a3f | 5263 | |
e075ae69 RH |
5264 | /* Validate scale factor. */ |
5265 | if (scale != 1) | |
3b3c6a3f | 5266 | { |
e075ae69 RH |
5267 | reason_rtx = GEN_INT (scale); |
5268 | if (!index) | |
3b3c6a3f | 5269 | { |
e075ae69 | 5270 | reason = "scale without index"; |
50e60bc3 | 5271 | goto report_error; |
3b3c6a3f MM |
5272 | } |
5273 | ||
e075ae69 | 5274 | if (scale != 2 && scale != 4 && scale != 8) |
3b3c6a3f | 5275 | { |
e075ae69 | 5276 | reason = "scale is not a valid multiplier"; |
50e60bc3 | 5277 | goto report_error; |
3b3c6a3f MM |
5278 | } |
5279 | } | |
5280 | ||
91bb873f | 5281 | /* Validate displacement. */ |
3b3c6a3f MM |
5282 | if (disp) |
5283 | { | |
e075ae69 RH |
5284 | reason_rtx = disp; |
5285 | ||
0d7d98ee | 5286 | if (TARGET_64BIT) |
3b3c6a3f | 5287 | { |
0d7d98ee JH |
5288 | if (!x86_64_sign_extended_value (disp)) |
5289 | { | |
5290 | reason = "displacement is out of range"; | |
5291 | goto report_error; | |
5292 | } | |
5293 | } | |
5294 | else | |
5295 | { | |
5296 | if (GET_CODE (disp) == CONST_DOUBLE) | |
5297 | { | |
5298 | reason = "displacement is a const_double"; | |
5299 | goto report_error; | |
5300 | } | |
3b3c6a3f MM |
5301 | } |
5302 | ||
f996902d RH |
5303 | if (GET_CODE (disp) == CONST |
5304 | && GET_CODE (XEXP (disp, 0)) == UNSPEC) | |
5305 | switch (XINT (XEXP (disp, 0), 1)) | |
5306 | { | |
5307 | case UNSPEC_GOT: | |
5308 | case UNSPEC_GOTOFF: | |
5309 | case UNSPEC_GOTPCREL: | |
5310 | if (!flag_pic) | |
5311 | abort (); | |
5312 | goto is_legitimate_pic; | |
5313 | ||
5314 | case UNSPEC_GOTTPOFF: | |
dea73790 JJ |
5315 | case UNSPEC_GOTNTPOFF: |
5316 | case UNSPEC_INDNTPOFF: | |
f996902d RH |
5317 | case UNSPEC_NTPOFF: |
5318 | case UNSPEC_DTPOFF: | |
5319 | break; | |
5320 | ||
5321 | default: | |
5322 | reason = "invalid address unspec"; | |
5323 | goto report_error; | |
5324 | } | |
5325 | ||
b069de3b SS |
5326 | else if (flag_pic && (SYMBOLIC_CONST (disp) |
5327 | #if TARGET_MACHO | |
5328 | && !machopic_operand_p (disp) | |
5329 | #endif | |
5330 | )) | |
3b3c6a3f | 5331 | { |
f996902d | 5332 | is_legitimate_pic: |
0d7d98ee JH |
5333 | if (TARGET_64BIT && (index || base)) |
5334 | { | |
5335 | reason = "non-constant pic memory reference"; | |
5336 | goto report_error; | |
5337 | } | |
91bb873f RH |
5338 | if (! legitimate_pic_address_disp_p (disp)) |
5339 | { | |
e075ae69 | 5340 | reason = "displacement is an invalid pic construct"; |
50e60bc3 | 5341 | goto report_error; |
91bb873f RH |
5342 | } |
5343 | ||
4e9efe54 | 5344 | /* This code used to verify that a symbolic pic displacement |
0f290768 KH |
5345 | includes the pic_offset_table_rtx register. |
5346 | ||
4e9efe54 JH |
5347 | While this is good idea, unfortunately these constructs may |
5348 | be created by "adds using lea" optimization for incorrect | |
5349 | code like: | |
5350 | ||
5351 | int a; | |
5352 | int foo(int i) | |
5353 | { | |
5354 | return *(&a+i); | |
5355 | } | |
5356 | ||
50e60bc3 | 5357 | This code is nonsensical, but results in addressing |
4e9efe54 | 5358 | GOT table with pic_offset_table_rtx base. We can't |
f710504c | 5359 | just refuse it easily, since it gets matched by |
4e9efe54 JH |
5360 | "addsi3" pattern, that later gets split to lea in the |
5361 | case output register differs from input. While this | |
5362 | can be handled by separate addsi pattern for this case | |
5363 | that never results in lea, this seems to be easier and | |
5364 | correct fix for crash to disable this test. */ | |
3b3c6a3f | 5365 | } |
f996902d RH |
5366 | else if (!CONSTANT_ADDRESS_P (disp)) |
5367 | { | |
5368 | reason = "displacement is not constant"; | |
5369 | goto report_error; | |
5370 | } | |
3b3c6a3f MM |
5371 | } |
5372 | ||
e075ae69 | 5373 | /* Everything looks valid. */ |
3b3c6a3f | 5374 | if (TARGET_DEBUG_ADDR) |
e075ae69 | 5375 | fprintf (stderr, "Success.\n"); |
3b3c6a3f | 5376 | return TRUE; |
e075ae69 | 5377 | |
5bf0ebab | 5378 | report_error: |
e075ae69 RH |
5379 | if (TARGET_DEBUG_ADDR) |
5380 | { | |
5381 | fprintf (stderr, "Error: %s\n", reason); | |
5382 | debug_rtx (reason_rtx); | |
5383 | } | |
5384 | return FALSE; | |
3b3c6a3f | 5385 | } |
3b3c6a3f | 5386 | \f |
55efb413 JW |
5387 | /* Return an unique alias set for the GOT. */ |
5388 | ||
0f290768 | 5389 | static HOST_WIDE_INT |
55efb413 JW |
5390 | ix86_GOT_alias_set () |
5391 | { | |
5bf0ebab RH |
5392 | static HOST_WIDE_INT set = -1; |
5393 | if (set == -1) | |
5394 | set = new_alias_set (); | |
5395 | return set; | |
0f290768 | 5396 | } |
55efb413 | 5397 | |
3b3c6a3f MM |
5398 | /* Return a legitimate reference for ORIG (an address) using the |
5399 | register REG. If REG is 0, a new pseudo is generated. | |
5400 | ||
91bb873f | 5401 | There are two types of references that must be handled: |
3b3c6a3f MM |
5402 | |
5403 | 1. Global data references must load the address from the GOT, via | |
5404 | the PIC reg. An insn is emitted to do this load, and the reg is | |
5405 | returned. | |
5406 | ||
91bb873f RH |
5407 | 2. Static data references, constant pool addresses, and code labels |
5408 | compute the address as an offset from the GOT, whose base is in | |
5409 | the PIC reg. Static data objects have SYMBOL_REF_FLAG set to | |
5410 | differentiate them from global data objects. The returned | |
5411 | address is the PIC reg + an unspec constant. | |
3b3c6a3f MM |
5412 | |
5413 | GO_IF_LEGITIMATE_ADDRESS rejects symbolic references unless the PIC | |
91bb873f | 5414 | reg also appears in the address. */ |
3b3c6a3f MM |
5415 | |
5416 | rtx | |
5417 | legitimize_pic_address (orig, reg) | |
5418 | rtx orig; | |
5419 | rtx reg; | |
5420 | { | |
5421 | rtx addr = orig; | |
5422 | rtx new = orig; | |
91bb873f | 5423 | rtx base; |
3b3c6a3f | 5424 | |
b069de3b SS |
5425 | #if TARGET_MACHO |
5426 | if (reg == 0) | |
5427 | reg = gen_reg_rtx (Pmode); | |
5428 | /* Use the generic Mach-O PIC machinery. */ | |
5429 | return machopic_legitimize_pic_address (orig, GET_MODE (orig), reg); | |
5430 | #endif | |
5431 | ||
623fe810 | 5432 | if (local_symbolic_operand (addr, Pmode)) |
3b3c6a3f | 5433 | { |
14f73b5a JH |
5434 | /* In 64bit mode we can address such objects directly. */ |
5435 | if (TARGET_64BIT) | |
5436 | new = addr; | |
5437 | else | |
5438 | { | |
5439 | /* This symbol may be referenced via a displacement from the PIC | |
5440 | base address (@GOTOFF). */ | |
3b3c6a3f | 5441 | |
66edd3b4 RH |
5442 | if (reload_in_progress) |
5443 | regs_ever_live[PIC_OFFSET_TABLE_REGNUM] = 1; | |
8ee41eaf | 5444 | new = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, addr), UNSPEC_GOTOFF); |
14f73b5a JH |
5445 | new = gen_rtx_CONST (Pmode, new); |
5446 | new = gen_rtx_PLUS (Pmode, pic_offset_table_rtx, new); | |
3b3c6a3f | 5447 | |
14f73b5a JH |
5448 | if (reg != 0) |
5449 | { | |
5450 | emit_move_insn (reg, new); | |
5451 | new = reg; | |
5452 | } | |
5453 | } | |
3b3c6a3f | 5454 | } |
91bb873f | 5455 | else if (GET_CODE (addr) == SYMBOL_REF) |
3b3c6a3f | 5456 | { |
14f73b5a JH |
5457 | if (TARGET_64BIT) |
5458 | { | |
8ee41eaf | 5459 | new = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, addr), UNSPEC_GOTPCREL); |
14f73b5a JH |
5460 | new = gen_rtx_CONST (Pmode, new); |
5461 | new = gen_rtx_MEM (Pmode, new); | |
5462 | RTX_UNCHANGING_P (new) = 1; | |
5463 | set_mem_alias_set (new, ix86_GOT_alias_set ()); | |
5464 | ||
5465 | if (reg == 0) | |
5466 | reg = gen_reg_rtx (Pmode); | |
5467 | /* Use directly gen_movsi, otherwise the address is loaded | |
5468 | into register for CSE. We don't want to CSE this addresses, | |
5469 | instead we CSE addresses from the GOT table, so skip this. */ | |
5470 | emit_insn (gen_movsi (reg, new)); | |
5471 | new = reg; | |
5472 | } | |
5473 | else | |
5474 | { | |
5475 | /* This symbol must be referenced via a load from the | |
5476 | Global Offset Table (@GOT). */ | |
3b3c6a3f | 5477 | |
66edd3b4 RH |
5478 | if (reload_in_progress) |
5479 | regs_ever_live[PIC_OFFSET_TABLE_REGNUM] = 1; | |
8ee41eaf | 5480 | new = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, addr), UNSPEC_GOT); |
14f73b5a JH |
5481 | new = gen_rtx_CONST (Pmode, new); |
5482 | new = gen_rtx_PLUS (Pmode, pic_offset_table_rtx, new); | |
5483 | new = gen_rtx_MEM (Pmode, new); | |
5484 | RTX_UNCHANGING_P (new) = 1; | |
5485 | set_mem_alias_set (new, ix86_GOT_alias_set ()); | |
3b3c6a3f | 5486 | |
14f73b5a JH |
5487 | if (reg == 0) |
5488 | reg = gen_reg_rtx (Pmode); | |
5489 | emit_move_insn (reg, new); | |
5490 | new = reg; | |
5491 | } | |
0f290768 | 5492 | } |
91bb873f RH |
5493 | else |
5494 | { | |
5495 | if (GET_CODE (addr) == CONST) | |
3b3c6a3f | 5496 | { |
91bb873f | 5497 | addr = XEXP (addr, 0); |
e3c8ea67 RH |
5498 | |
5499 | /* We must match stuff we generate before. Assume the only | |
5500 | unspecs that can get here are ours. Not that we could do | |
5501 | anything with them anyway... */ | |
5502 | if (GET_CODE (addr) == UNSPEC | |
5503 | || (GET_CODE (addr) == PLUS | |
5504 | && GET_CODE (XEXP (addr, 0)) == UNSPEC)) | |
5505 | return orig; | |
5506 | if (GET_CODE (addr) != PLUS) | |
564d80f4 | 5507 | abort (); |
3b3c6a3f | 5508 | } |
91bb873f RH |
5509 | if (GET_CODE (addr) == PLUS) |
5510 | { | |
5511 | rtx op0 = XEXP (addr, 0), op1 = XEXP (addr, 1); | |
e9a25f70 | 5512 | |
91bb873f RH |
5513 | /* Check first to see if this is a constant offset from a @GOTOFF |
5514 | symbol reference. */ | |
623fe810 | 5515 | if (local_symbolic_operand (op0, Pmode) |
91bb873f RH |
5516 | && GET_CODE (op1) == CONST_INT) |
5517 | { | |
6eb791fc JH |
5518 | if (!TARGET_64BIT) |
5519 | { | |
66edd3b4 RH |
5520 | if (reload_in_progress) |
5521 | regs_ever_live[PIC_OFFSET_TABLE_REGNUM] = 1; | |
8ee41eaf RH |
5522 | new = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, op0), |
5523 | UNSPEC_GOTOFF); | |
6eb791fc JH |
5524 | new = gen_rtx_PLUS (Pmode, new, op1); |
5525 | new = gen_rtx_CONST (Pmode, new); | |
5526 | new = gen_rtx_PLUS (Pmode, pic_offset_table_rtx, new); | |
91bb873f | 5527 | |
6eb791fc JH |
5528 | if (reg != 0) |
5529 | { | |
5530 | emit_move_insn (reg, new); | |
5531 | new = reg; | |
5532 | } | |
5533 | } | |
5534 | else | |
91bb873f | 5535 | { |
6eb791fc | 5536 | /* ??? We need to limit offsets here. */ |
91bb873f RH |
5537 | } |
5538 | } | |
5539 | else | |
5540 | { | |
5541 | base = legitimize_pic_address (XEXP (addr, 0), reg); | |
5542 | new = legitimize_pic_address (XEXP (addr, 1), | |
5543 | base == reg ? NULL_RTX : reg); | |
5544 | ||
5545 | if (GET_CODE (new) == CONST_INT) | |
5546 | new = plus_constant (base, INTVAL (new)); | |
5547 | else | |
5548 | { | |
5549 | if (GET_CODE (new) == PLUS && CONSTANT_P (XEXP (new, 1))) | |
5550 | { | |
5551 | base = gen_rtx_PLUS (Pmode, base, XEXP (new, 0)); | |
5552 | new = XEXP (new, 1); | |
5553 | } | |
5554 | new = gen_rtx_PLUS (Pmode, base, new); | |
5555 | } | |
5556 | } | |
5557 | } | |
3b3c6a3f MM |
5558 | } |
5559 | return new; | |
5560 | } | |
fb49053f | 5561 | |
fb49053f | 5562 | static void |
f996902d | 5563 | ix86_encode_section_info (decl, first) |
fb49053f RH |
5564 | tree decl; |
5565 | int first ATTRIBUTE_UNUSED; | |
5566 | { | |
f996902d RH |
5567 | bool local_p = (*targetm.binds_local_p) (decl); |
5568 | rtx rtl, symbol; | |
5569 | ||
5570 | rtl = DECL_P (decl) ? DECL_RTL (decl) : TREE_CST_RTL (decl); | |
5571 | if (GET_CODE (rtl) != MEM) | |
5572 | return; | |
5573 | symbol = XEXP (rtl, 0); | |
5574 | if (GET_CODE (symbol) != SYMBOL_REF) | |
5575 | return; | |
5576 | ||
5577 | /* For basic x86, if using PIC, mark a SYMBOL_REF for a non-global | |
5578 | symbol so that we may access it directly in the GOT. */ | |
5579 | ||
fb49053f | 5580 | if (flag_pic) |
f996902d RH |
5581 | SYMBOL_REF_FLAG (symbol) = local_p; |
5582 | ||
5583 | /* For ELF, encode thread-local data with %[GLil] for "global dynamic", | |
5584 | "local dynamic", "initial exec" or "local exec" TLS models | |
5585 | respectively. */ | |
5586 | ||
5587 | if (TREE_CODE (decl) == VAR_DECL && DECL_THREAD_LOCAL (decl)) | |
fb49053f | 5588 | { |
f996902d RH |
5589 | const char *symbol_str; |
5590 | char *newstr; | |
5591 | size_t len; | |
dce81a1a | 5592 | enum tls_model kind = decl_tls_model (decl); |
f996902d RH |
5593 | |
5594 | symbol_str = XSTR (symbol, 0); | |
fb49053f | 5595 | |
f996902d RH |
5596 | if (symbol_str[0] == '%') |
5597 | { | |
5598 | if (symbol_str[1] == tls_model_chars[kind]) | |
5599 | return; | |
5600 | symbol_str += 2; | |
5601 | } | |
5602 | len = strlen (symbol_str) + 1; | |
5603 | newstr = alloca (len + 2); | |
5604 | ||
5605 | newstr[0] = '%'; | |
5606 | newstr[1] = tls_model_chars[kind]; | |
5607 | memcpy (newstr + 2, symbol_str, len); | |
5608 | ||
5609 | XSTR (symbol, 0) = ggc_alloc_string (newstr, len + 2 - 1); | |
fb49053f RH |
5610 | } |
5611 | } | |
f996902d RH |
5612 | |
5613 | /* Undo the above when printing symbol names. */ | |
5614 | ||
5615 | static const char * | |
5616 | ix86_strip_name_encoding (str) | |
5617 | const char *str; | |
5618 | { | |
5619 | if (str[0] == '%') | |
5620 | str += 2; | |
5621 | if (str [0] == '*') | |
5622 | str += 1; | |
5623 | return str; | |
5624 | } | |
3b3c6a3f | 5625 | \f |
f996902d RH |
5626 | /* Load the thread pointer into a register. */ |
5627 | ||
5628 | static rtx | |
5629 | get_thread_pointer () | |
5630 | { | |
5631 | rtx tp; | |
5632 | ||
5633 | tp = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, const0_rtx), UNSPEC_TP); | |
9e20be0c JJ |
5634 | tp = gen_rtx_MEM (Pmode, tp); |
5635 | RTX_UNCHANGING_P (tp) = 1; | |
5636 | set_mem_alias_set (tp, ix86_GOT_alias_set ()); | |
f996902d RH |
5637 | tp = force_reg (Pmode, tp); |
5638 | ||
5639 | return tp; | |
5640 | } | |
fce5a9f2 | 5641 | |
3b3c6a3f MM |
5642 | /* Try machine-dependent ways of modifying an illegitimate address |
5643 | to be legitimate. If we find one, return the new, valid address. | |
5644 | This macro is used in only one place: `memory_address' in explow.c. | |
5645 | ||
5646 | OLDX is the address as it was before break_out_memory_refs was called. | |
5647 | In some cases it is useful to look at this to decide what needs to be done. | |
5648 | ||
5649 | MODE and WIN are passed so that this macro can use | |
5650 | GO_IF_LEGITIMATE_ADDRESS. | |
5651 | ||
5652 | It is always safe for this macro to do nothing. It exists to recognize | |
5653 | opportunities to optimize the output. | |
5654 | ||
5655 | For the 80386, we handle X+REG by loading X into a register R and | |
5656 | using R+REG. R will go in a general reg and indexing will be used. | |
5657 | However, if REG is a broken-out memory address or multiplication, | |
5658 | nothing needs to be done because REG can certainly go in a general reg. | |
5659 | ||
5660 | When -fpic is used, special handling is needed for symbolic references. | |
5661 | See comments by legitimize_pic_address in i386.c for details. */ | |
5662 | ||
5663 | rtx | |
5664 | legitimize_address (x, oldx, mode) | |
5665 | register rtx x; | |
bb5177ac | 5666 | register rtx oldx ATTRIBUTE_UNUSED; |
3b3c6a3f MM |
5667 | enum machine_mode mode; |
5668 | { | |
5669 | int changed = 0; | |
5670 | unsigned log; | |
5671 | ||
5672 | if (TARGET_DEBUG_ADDR) | |
5673 | { | |
e9a25f70 JL |
5674 | fprintf (stderr, "\n==========\nLEGITIMIZE_ADDRESS, mode = %s\n", |
5675 | GET_MODE_NAME (mode)); | |
3b3c6a3f MM |
5676 | debug_rtx (x); |
5677 | } | |
5678 | ||
f996902d RH |
5679 | log = tls_symbolic_operand (x, mode); |
5680 | if (log) | |
5681 | { | |
5682 | rtx dest, base, off, pic; | |
5683 | ||
755ac5d4 | 5684 | switch (log) |
f996902d RH |
5685 | { |
5686 | case TLS_MODEL_GLOBAL_DYNAMIC: | |
5687 | dest = gen_reg_rtx (Pmode); | |
5688 | emit_insn (gen_tls_global_dynamic (dest, x)); | |
5689 | break; | |
5690 | ||
5691 | case TLS_MODEL_LOCAL_DYNAMIC: | |
5692 | base = gen_reg_rtx (Pmode); | |
5693 | emit_insn (gen_tls_local_dynamic_base (base)); | |
5694 | ||
5695 | off = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, x), UNSPEC_DTPOFF); | |
5696 | off = gen_rtx_CONST (Pmode, off); | |
5697 | ||
5698 | return gen_rtx_PLUS (Pmode, base, off); | |
5699 | ||
5700 | case TLS_MODEL_INITIAL_EXEC: | |
5701 | if (flag_pic) | |
5702 | { | |
66edd3b4 RH |
5703 | if (reload_in_progress) |
5704 | regs_ever_live[PIC_OFFSET_TABLE_REGNUM] = 1; | |
f996902d RH |
5705 | pic = pic_offset_table_rtx; |
5706 | } | |
dea73790 | 5707 | else if (!TARGET_GNU_TLS) |
f996902d RH |
5708 | { |
5709 | pic = gen_reg_rtx (Pmode); | |
5710 | emit_insn (gen_set_got (pic)); | |
5711 | } | |
dea73790 JJ |
5712 | else |
5713 | pic = NULL; | |
f996902d RH |
5714 | |
5715 | base = get_thread_pointer (); | |
5716 | ||
dea73790 JJ |
5717 | off = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, x), |
5718 | !TARGET_GNU_TLS | |
5719 | ? UNSPEC_GOTTPOFF | |
5720 | : flag_pic ? UNSPEC_GOTNTPOFF | |
5721 | : UNSPEC_INDNTPOFF); | |
f996902d | 5722 | off = gen_rtx_CONST (Pmode, off); |
dea73790 JJ |
5723 | if (flag_pic || !TARGET_GNU_TLS) |
5724 | off = gen_rtx_PLUS (Pmode, pic, off); | |
f996902d RH |
5725 | off = gen_rtx_MEM (Pmode, off); |
5726 | RTX_UNCHANGING_P (off) = 1; | |
5727 | set_mem_alias_set (off, ix86_GOT_alias_set ()); | |
f996902d | 5728 | dest = gen_reg_rtx (Pmode); |
dea73790 JJ |
5729 | |
5730 | if (TARGET_GNU_TLS) | |
5731 | { | |
5732 | emit_move_insn (dest, off); | |
5733 | return gen_rtx_PLUS (Pmode, base, dest); | |
5734 | } | |
5735 | else | |
5736 | emit_insn (gen_subsi3 (dest, base, off)); | |
f996902d RH |
5737 | break; |
5738 | ||
5739 | case TLS_MODEL_LOCAL_EXEC: | |
5740 | base = get_thread_pointer (); | |
5741 | ||
5742 | off = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, x), | |
5743 | TARGET_GNU_TLS ? UNSPEC_NTPOFF : UNSPEC_TPOFF); | |
5744 | off = gen_rtx_CONST (Pmode, off); | |
5745 | ||
5746 | if (TARGET_GNU_TLS) | |
5747 | return gen_rtx_PLUS (Pmode, base, off); | |
5748 | else | |
5749 | { | |
5750 | dest = gen_reg_rtx (Pmode); | |
5751 | emit_insn (gen_subsi3 (dest, base, off)); | |
5752 | } | |
5753 | break; | |
5754 | ||
5755 | default: | |
5756 | abort (); | |
5757 | } | |
5758 | ||
5759 | return dest; | |
5760 | } | |
5761 | ||
3b3c6a3f MM |
5762 | if (flag_pic && SYMBOLIC_CONST (x)) |
5763 | return legitimize_pic_address (x, 0); | |
5764 | ||
5765 | /* Canonicalize shifts by 0, 1, 2, 3 into multiply */ | |
5766 | if (GET_CODE (x) == ASHIFT | |
5767 | && GET_CODE (XEXP (x, 1)) == CONST_INT | |
b531087a | 5768 | && (log = (unsigned) exact_log2 (INTVAL (XEXP (x, 1)))) < 4) |
3b3c6a3f MM |
5769 | { |
5770 | changed = 1; | |
a269a03c JC |
5771 | x = gen_rtx_MULT (Pmode, force_reg (Pmode, XEXP (x, 0)), |
5772 | GEN_INT (1 << log)); | |
3b3c6a3f MM |
5773 | } |
5774 | ||
5775 | if (GET_CODE (x) == PLUS) | |
5776 | { | |
0f290768 | 5777 | /* Canonicalize shifts by 0, 1, 2, 3 into multiply. */ |
e9a25f70 | 5778 | |
3b3c6a3f MM |
5779 | if (GET_CODE (XEXP (x, 0)) == ASHIFT |
5780 | && GET_CODE (XEXP (XEXP (x, 0), 1)) == CONST_INT | |
b531087a | 5781 | && (log = (unsigned) exact_log2 (INTVAL (XEXP (XEXP (x, 0), 1)))) < 4) |
3b3c6a3f MM |
5782 | { |
5783 | changed = 1; | |
c5c76735 JL |
5784 | XEXP (x, 0) = gen_rtx_MULT (Pmode, |
5785 | force_reg (Pmode, XEXP (XEXP (x, 0), 0)), | |
5786 | GEN_INT (1 << log)); | |
3b3c6a3f MM |
5787 | } |
5788 | ||
5789 | if (GET_CODE (XEXP (x, 1)) == ASHIFT | |
5790 | && GET_CODE (XEXP (XEXP (x, 1), 1)) == CONST_INT | |
b531087a | 5791 | && (log = (unsigned) exact_log2 (INTVAL (XEXP (XEXP (x, 1), 1)))) < 4) |
3b3c6a3f MM |
5792 | { |
5793 | changed = 1; | |
c5c76735 JL |
5794 | XEXP (x, 1) = gen_rtx_MULT (Pmode, |
5795 | force_reg (Pmode, XEXP (XEXP (x, 1), 0)), | |
5796 | GEN_INT (1 << log)); | |
3b3c6a3f MM |
5797 | } |
5798 | ||
0f290768 | 5799 | /* Put multiply first if it isn't already. */ |
3b3c6a3f MM |
5800 | if (GET_CODE (XEXP (x, 1)) == MULT) |
5801 | { | |
5802 | rtx tmp = XEXP (x, 0); | |
5803 | XEXP (x, 0) = XEXP (x, 1); | |
5804 | XEXP (x, 1) = tmp; | |
5805 | changed = 1; | |
5806 | } | |
5807 | ||
5808 | /* Canonicalize (plus (mult (reg) (const)) (plus (reg) (const))) | |
5809 | into (plus (plus (mult (reg) (const)) (reg)) (const)). This can be | |
5810 | created by virtual register instantiation, register elimination, and | |
5811 | similar optimizations. */ | |
5812 | if (GET_CODE (XEXP (x, 0)) == MULT && GET_CODE (XEXP (x, 1)) == PLUS) | |
5813 | { | |
5814 | changed = 1; | |
c5c76735 JL |
5815 | x = gen_rtx_PLUS (Pmode, |
5816 | gen_rtx_PLUS (Pmode, XEXP (x, 0), | |
5817 | XEXP (XEXP (x, 1), 0)), | |
5818 | XEXP (XEXP (x, 1), 1)); | |
3b3c6a3f MM |
5819 | } |
5820 | ||
e9a25f70 JL |
5821 | /* Canonicalize |
5822 | (plus (plus (mult (reg) (const)) (plus (reg) (const))) const) | |
3b3c6a3f MM |
5823 | into (plus (plus (mult (reg) (const)) (reg)) (const)). */ |
5824 | else if (GET_CODE (x) == PLUS && GET_CODE (XEXP (x, 0)) == PLUS | |
5825 | && GET_CODE (XEXP (XEXP (x, 0), 0)) == MULT | |
5826 | && GET_CODE (XEXP (XEXP (x, 0), 1)) == PLUS | |
5827 | && CONSTANT_P (XEXP (x, 1))) | |
5828 | { | |
00c79232 ML |
5829 | rtx constant; |
5830 | rtx other = NULL_RTX; | |
3b3c6a3f MM |
5831 | |
5832 | if (GET_CODE (XEXP (x, 1)) == CONST_INT) | |
5833 | { | |
5834 | constant = XEXP (x, 1); | |
5835 | other = XEXP (XEXP (XEXP (x, 0), 1), 1); | |
5836 | } | |
5837 | else if (GET_CODE (XEXP (XEXP (XEXP (x, 0), 1), 1)) == CONST_INT) | |
5838 | { | |
5839 | constant = XEXP (XEXP (XEXP (x, 0), 1), 1); | |
5840 | other = XEXP (x, 1); | |
5841 | } | |
5842 | else | |
5843 | constant = 0; | |
5844 | ||
5845 | if (constant) | |
5846 | { | |
5847 | changed = 1; | |
c5c76735 JL |
5848 | x = gen_rtx_PLUS (Pmode, |
5849 | gen_rtx_PLUS (Pmode, XEXP (XEXP (x, 0), 0), | |
5850 | XEXP (XEXP (XEXP (x, 0), 1), 0)), | |
5851 | plus_constant (other, INTVAL (constant))); | |
3b3c6a3f MM |
5852 | } |
5853 | } | |
5854 | ||
5855 | if (changed && legitimate_address_p (mode, x, FALSE)) | |
5856 | return x; | |
5857 | ||
5858 | if (GET_CODE (XEXP (x, 0)) == MULT) | |
5859 | { | |
5860 | changed = 1; | |
5861 | XEXP (x, 0) = force_operand (XEXP (x, 0), 0); | |
5862 | } | |
5863 | ||
5864 | if (GET_CODE (XEXP (x, 1)) == MULT) | |
5865 | { | |
5866 | changed = 1; | |
5867 | XEXP (x, 1) = force_operand (XEXP (x, 1), 0); | |
5868 | } | |
5869 | ||
5870 | if (changed | |
5871 | && GET_CODE (XEXP (x, 1)) == REG | |
5872 | && GET_CODE (XEXP (x, 0)) == REG) | |
5873 | return x; | |
5874 | ||
5875 | if (flag_pic && SYMBOLIC_CONST (XEXP (x, 1))) | |
5876 | { | |
5877 | changed = 1; | |
5878 | x = legitimize_pic_address (x, 0); | |
5879 | } | |
5880 | ||
5881 | if (changed && legitimate_address_p (mode, x, FALSE)) | |
5882 | return x; | |
5883 | ||
5884 | if (GET_CODE (XEXP (x, 0)) == REG) | |
5885 | { | |
5886 | register rtx temp = gen_reg_rtx (Pmode); | |
5887 | register rtx val = force_operand (XEXP (x, 1), temp); | |
5888 | if (val != temp) | |
5889 | emit_move_insn (temp, val); | |
5890 | ||
5891 | XEXP (x, 1) = temp; | |
5892 | return x; | |
5893 | } | |
5894 | ||
5895 | else if (GET_CODE (XEXP (x, 1)) == REG) | |
5896 | { | |
5897 | register rtx temp = gen_reg_rtx (Pmode); | |
5898 | register rtx val = force_operand (XEXP (x, 0), temp); | |
5899 | if (val != temp) | |
5900 | emit_move_insn (temp, val); | |
5901 | ||
5902 | XEXP (x, 0) = temp; | |
5903 | return x; | |
5904 | } | |
5905 | } | |
5906 | ||
5907 | return x; | |
5908 | } | |
2a2ab3f9 JVA |
5909 | \f |
5910 | /* Print an integer constant expression in assembler syntax. Addition | |
5911 | and subtraction are the only arithmetic that may appear in these | |
5912 | expressions. FILE is the stdio stream to write to, X is the rtx, and | |
5913 | CODE is the operand print code from the output string. */ | |
5914 | ||
5915 | static void | |
5916 | output_pic_addr_const (file, x, code) | |
5917 | FILE *file; | |
5918 | rtx x; | |
5919 | int code; | |
5920 | { | |
5921 | char buf[256]; | |
5922 | ||
5923 | switch (GET_CODE (x)) | |
5924 | { | |
5925 | case PC: | |
5926 | if (flag_pic) | |
5927 | putc ('.', file); | |
5928 | else | |
5929 | abort (); | |
5930 | break; | |
5931 | ||
5932 | case SYMBOL_REF: | |
91bb873f | 5933 | assemble_name (file, XSTR (x, 0)); |
b069de3b | 5934 | if (!TARGET_MACHO && code == 'P' && ! SYMBOL_REF_FLAG (x)) |
91bb873f | 5935 | fputs ("@PLT", file); |
2a2ab3f9 JVA |
5936 | break; |
5937 | ||
91bb873f RH |
5938 | case LABEL_REF: |
5939 | x = XEXP (x, 0); | |
5940 | /* FALLTHRU */ | |
2a2ab3f9 JVA |
5941 | case CODE_LABEL: |
5942 | ASM_GENERATE_INTERNAL_LABEL (buf, "L", CODE_LABEL_NUMBER (x)); | |
5943 | assemble_name (asm_out_file, buf); | |
5944 | break; | |
5945 | ||
5946 | case CONST_INT: | |
f64cecad | 5947 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, INTVAL (x)); |
2a2ab3f9 JVA |
5948 | break; |
5949 | ||
5950 | case CONST: | |
5951 | /* This used to output parentheses around the expression, | |
5952 | but that does not work on the 386 (either ATT or BSD assembler). */ | |
5953 | output_pic_addr_const (file, XEXP (x, 0), code); | |
5954 | break; | |
5955 | ||
5956 | case CONST_DOUBLE: | |
5957 | if (GET_MODE (x) == VOIDmode) | |
5958 | { | |
5959 | /* We can use %d if the number is <32 bits and positive. */ | |
5960 | if (CONST_DOUBLE_HIGH (x) || CONST_DOUBLE_LOW (x) < 0) | |
f64cecad JC |
5961 | fprintf (file, "0x%lx%08lx", |
5962 | (unsigned long) CONST_DOUBLE_HIGH (x), | |
5963 | (unsigned long) CONST_DOUBLE_LOW (x)); | |
2a2ab3f9 | 5964 | else |
f64cecad | 5965 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, CONST_DOUBLE_LOW (x)); |
2a2ab3f9 JVA |
5966 | } |
5967 | else | |
5968 | /* We can't handle floating point constants; | |
5969 | PRINT_OPERAND must handle them. */ | |
5970 | output_operand_lossage ("floating constant misused"); | |
5971 | break; | |
5972 | ||
5973 | case PLUS: | |
e9a25f70 | 5974 | /* Some assemblers need integer constants to appear first. */ |
2a2ab3f9 JVA |
5975 | if (GET_CODE (XEXP (x, 0)) == CONST_INT) |
5976 | { | |
2a2ab3f9 | 5977 | output_pic_addr_const (file, XEXP (x, 0), code); |
e075ae69 | 5978 | putc ('+', file); |
e9a25f70 | 5979 | output_pic_addr_const (file, XEXP (x, 1), code); |
2a2ab3f9 | 5980 | } |
91bb873f | 5981 | else if (GET_CODE (XEXP (x, 1)) == CONST_INT) |
2a2ab3f9 | 5982 | { |
2a2ab3f9 | 5983 | output_pic_addr_const (file, XEXP (x, 1), code); |
e075ae69 | 5984 | putc ('+', file); |
e9a25f70 | 5985 | output_pic_addr_const (file, XEXP (x, 0), code); |
2a2ab3f9 | 5986 | } |
91bb873f RH |
5987 | else |
5988 | abort (); | |
2a2ab3f9 JVA |
5989 | break; |
5990 | ||
5991 | case MINUS: | |
b069de3b SS |
5992 | if (!TARGET_MACHO) |
5993 | putc (ASSEMBLER_DIALECT == ASM_INTEL ? '(' : '[', file); | |
2a2ab3f9 | 5994 | output_pic_addr_const (file, XEXP (x, 0), code); |
e075ae69 | 5995 | putc ('-', file); |
2a2ab3f9 | 5996 | output_pic_addr_const (file, XEXP (x, 1), code); |
b069de3b SS |
5997 | if (!TARGET_MACHO) |
5998 | putc (ASSEMBLER_DIALECT == ASM_INTEL ? ')' : ']', file); | |
2a2ab3f9 JVA |
5999 | break; |
6000 | ||
91bb873f RH |
6001 | case UNSPEC: |
6002 | if (XVECLEN (x, 0) != 1) | |
5bf0ebab | 6003 | abort (); |
91bb873f RH |
6004 | output_pic_addr_const (file, XVECEXP (x, 0, 0), code); |
6005 | switch (XINT (x, 1)) | |
77ebd435 | 6006 | { |
8ee41eaf | 6007 | case UNSPEC_GOT: |
77ebd435 AJ |
6008 | fputs ("@GOT", file); |
6009 | break; | |
8ee41eaf | 6010 | case UNSPEC_GOTOFF: |
77ebd435 AJ |
6011 | fputs ("@GOTOFF", file); |
6012 | break; | |
8ee41eaf | 6013 | case UNSPEC_GOTPCREL: |
edfe8595 | 6014 | fputs ("@GOTPCREL(%rip)", file); |
6eb791fc | 6015 | break; |
f996902d | 6016 | case UNSPEC_GOTTPOFF: |
dea73790 | 6017 | /* FIXME: This might be @TPOFF in Sun ld too. */ |
f996902d RH |
6018 | fputs ("@GOTTPOFF", file); |
6019 | break; | |
6020 | case UNSPEC_TPOFF: | |
6021 | fputs ("@TPOFF", file); | |
6022 | break; | |
6023 | case UNSPEC_NTPOFF: | |
6024 | fputs ("@NTPOFF", file); | |
6025 | break; | |
6026 | case UNSPEC_DTPOFF: | |
6027 | fputs ("@DTPOFF", file); | |
6028 | break; | |
dea73790 JJ |
6029 | case UNSPEC_GOTNTPOFF: |
6030 | fputs ("@GOTNTPOFF", file); | |
6031 | break; | |
6032 | case UNSPEC_INDNTPOFF: | |
6033 | fputs ("@INDNTPOFF", file); | |
6034 | break; | |
77ebd435 AJ |
6035 | default: |
6036 | output_operand_lossage ("invalid UNSPEC as operand"); | |
6037 | break; | |
6038 | } | |
91bb873f RH |
6039 | break; |
6040 | ||
2a2ab3f9 JVA |
6041 | default: |
6042 | output_operand_lossage ("invalid expression as operand"); | |
6043 | } | |
6044 | } | |
1865dbb5 | 6045 | |
0f290768 | 6046 | /* This is called from dwarfout.c via ASM_OUTPUT_DWARF_ADDR_CONST. |
1865dbb5 JM |
6047 | We need to handle our special PIC relocations. */ |
6048 | ||
0f290768 | 6049 | void |
1865dbb5 JM |
6050 | i386_dwarf_output_addr_const (file, x) |
6051 | FILE *file; | |
6052 | rtx x; | |
6053 | { | |
14f73b5a | 6054 | #ifdef ASM_QUAD |
18b5b8d6 | 6055 | fprintf (file, "%s", TARGET_64BIT ? ASM_QUAD : ASM_LONG); |
14f73b5a JH |
6056 | #else |
6057 | if (TARGET_64BIT) | |
6058 | abort (); | |
18b5b8d6 | 6059 | fprintf (file, "%s", ASM_LONG); |
14f73b5a | 6060 | #endif |
1865dbb5 JM |
6061 | if (flag_pic) |
6062 | output_pic_addr_const (file, x, '\0'); | |
6063 | else | |
6064 | output_addr_const (file, x); | |
6065 | fputc ('\n', file); | |
6066 | } | |
6067 | ||
b9203463 RH |
6068 | /* This is called from dwarf2out.c via ASM_OUTPUT_DWARF_DTPREL. |
6069 | We need to emit DTP-relative relocations. */ | |
6070 | ||
6071 | void | |
6072 | i386_output_dwarf_dtprel (file, size, x) | |
6073 | FILE *file; | |
6074 | int size; | |
6075 | rtx x; | |
6076 | { | |
6077 | switch (size) | |
6078 | { | |
6079 | case 4: | |
6080 | fputs (ASM_LONG, file); | |
6081 | break; | |
6082 | case 8: | |
6083 | #ifdef ASM_QUAD | |
6084 | fputs (ASM_QUAD, file); | |
6085 | break; | |
6086 | #endif | |
6087 | default: | |
6088 | abort (); | |
6089 | } | |
6090 | ||
6091 | output_addr_const (file, x); | |
6092 | fputs ("@DTPOFF", file); | |
6093 | } | |
6094 | ||
1865dbb5 JM |
6095 | /* In the name of slightly smaller debug output, and to cater to |
6096 | general assembler losage, recognize PIC+GOTOFF and turn it back | |
6097 | into a direct symbol reference. */ | |
6098 | ||
6099 | rtx | |
6100 | i386_simplify_dwarf_addr (orig_x) | |
6101 | rtx orig_x; | |
6102 | { | |
ec65b2e3 | 6103 | rtx x = orig_x, y; |
1865dbb5 | 6104 | |
4c8c0dec JJ |
6105 | if (GET_CODE (x) == MEM) |
6106 | x = XEXP (x, 0); | |
6107 | ||
6eb791fc JH |
6108 | if (TARGET_64BIT) |
6109 | { | |
6110 | if (GET_CODE (x) != CONST | |
6111 | || GET_CODE (XEXP (x, 0)) != UNSPEC | |
8ee41eaf | 6112 | || XINT (XEXP (x, 0), 1) != UNSPEC_GOTPCREL |
4c8c0dec | 6113 | || GET_CODE (orig_x) != MEM) |
6eb791fc JH |
6114 | return orig_x; |
6115 | return XVECEXP (XEXP (x, 0), 0, 0); | |
6116 | } | |
6117 | ||
1865dbb5 | 6118 | if (GET_CODE (x) != PLUS |
1865dbb5 JM |
6119 | || GET_CODE (XEXP (x, 1)) != CONST) |
6120 | return orig_x; | |
6121 | ||
ec65b2e3 JJ |
6122 | if (GET_CODE (XEXP (x, 0)) == REG |
6123 | && REGNO (XEXP (x, 0)) == PIC_OFFSET_TABLE_REGNUM) | |
6124 | /* %ebx + GOT/GOTOFF */ | |
6125 | y = NULL; | |
6126 | else if (GET_CODE (XEXP (x, 0)) == PLUS) | |
6127 | { | |
6128 | /* %ebx + %reg * scale + GOT/GOTOFF */ | |
6129 | y = XEXP (x, 0); | |
6130 | if (GET_CODE (XEXP (y, 0)) == REG | |
6131 | && REGNO (XEXP (y, 0)) == PIC_OFFSET_TABLE_REGNUM) | |
6132 | y = XEXP (y, 1); | |
6133 | else if (GET_CODE (XEXP (y, 1)) == REG | |
6134 | && REGNO (XEXP (y, 1)) == PIC_OFFSET_TABLE_REGNUM) | |
6135 | y = XEXP (y, 0); | |
6136 | else | |
6137 | return orig_x; | |
6138 | if (GET_CODE (y) != REG | |
6139 | && GET_CODE (y) != MULT | |
6140 | && GET_CODE (y) != ASHIFT) | |
6141 | return orig_x; | |
6142 | } | |
6143 | else | |
6144 | return orig_x; | |
6145 | ||
1865dbb5 JM |
6146 | x = XEXP (XEXP (x, 1), 0); |
6147 | if (GET_CODE (x) == UNSPEC | |
8ee41eaf RH |
6148 | && ((XINT (x, 1) == UNSPEC_GOT && GET_CODE (orig_x) == MEM) |
6149 | || (XINT (x, 1) == UNSPEC_GOTOFF && GET_CODE (orig_x) != MEM))) | |
ec65b2e3 JJ |
6150 | { |
6151 | if (y) | |
6152 | return gen_rtx_PLUS (Pmode, y, XVECEXP (x, 0, 0)); | |
6153 | return XVECEXP (x, 0, 0); | |
6154 | } | |
1865dbb5 JM |
6155 | |
6156 | if (GET_CODE (x) == PLUS | |
6157 | && GET_CODE (XEXP (x, 0)) == UNSPEC | |
6158 | && GET_CODE (XEXP (x, 1)) == CONST_INT | |
8ee41eaf RH |
6159 | && ((XINT (XEXP (x, 0), 1) == UNSPEC_GOT && GET_CODE (orig_x) == MEM) |
6160 | || (XINT (XEXP (x, 0), 1) == UNSPEC_GOTOFF | |
6161 | && GET_CODE (orig_x) != MEM))) | |
ec65b2e3 JJ |
6162 | { |
6163 | x = gen_rtx_PLUS (VOIDmode, XVECEXP (XEXP (x, 0), 0, 0), XEXP (x, 1)); | |
6164 | if (y) | |
6165 | return gen_rtx_PLUS (Pmode, y, x); | |
6166 | return x; | |
6167 | } | |
1865dbb5 JM |
6168 | |
6169 | return orig_x; | |
6170 | } | |
2a2ab3f9 | 6171 | \f |
a269a03c | 6172 | static void |
e075ae69 | 6173 | put_condition_code (code, mode, reverse, fp, file) |
a269a03c | 6174 | enum rtx_code code; |
e075ae69 RH |
6175 | enum machine_mode mode; |
6176 | int reverse, fp; | |
a269a03c JC |
6177 | FILE *file; |
6178 | { | |
a269a03c JC |
6179 | const char *suffix; |
6180 | ||
9a915772 JH |
6181 | if (mode == CCFPmode || mode == CCFPUmode) |
6182 | { | |
6183 | enum rtx_code second_code, bypass_code; | |
6184 | ix86_fp_comparison_codes (code, &bypass_code, &code, &second_code); | |
6185 | if (bypass_code != NIL || second_code != NIL) | |
b531087a | 6186 | abort (); |
9a915772 JH |
6187 | code = ix86_fp_compare_code_to_integer (code); |
6188 | mode = CCmode; | |
6189 | } | |
a269a03c JC |
6190 | if (reverse) |
6191 | code = reverse_condition (code); | |
e075ae69 | 6192 | |
a269a03c JC |
6193 | switch (code) |
6194 | { | |
6195 | case EQ: | |
6196 | suffix = "e"; | |
6197 | break; | |
a269a03c JC |
6198 | case NE: |
6199 | suffix = "ne"; | |
6200 | break; | |
a269a03c | 6201 | case GT: |
7e08e190 | 6202 | if (mode != CCmode && mode != CCNOmode && mode != CCGCmode) |
e075ae69 RH |
6203 | abort (); |
6204 | suffix = "g"; | |
a269a03c | 6205 | break; |
a269a03c | 6206 | case GTU: |
e075ae69 RH |
6207 | /* ??? Use "nbe" instead of "a" for fcmov losage on some assemblers. |
6208 | Those same assemblers have the same but opposite losage on cmov. */ | |
7e08e190 | 6209 | if (mode != CCmode) |
0f290768 | 6210 | abort (); |
e075ae69 | 6211 | suffix = fp ? "nbe" : "a"; |
a269a03c | 6212 | break; |
a269a03c | 6213 | case LT: |
9076b9c1 | 6214 | if (mode == CCNOmode || mode == CCGOCmode) |
a269a03c | 6215 | suffix = "s"; |
7e08e190 | 6216 | else if (mode == CCmode || mode == CCGCmode) |
e075ae69 | 6217 | suffix = "l"; |
9076b9c1 | 6218 | else |
0f290768 | 6219 | abort (); |
a269a03c | 6220 | break; |
a269a03c | 6221 | case LTU: |
9076b9c1 | 6222 | if (mode != CCmode) |
0f290768 | 6223 | abort (); |
a269a03c JC |
6224 | suffix = "b"; |
6225 | break; | |
a269a03c | 6226 | case GE: |
9076b9c1 | 6227 | if (mode == CCNOmode || mode == CCGOCmode) |
a269a03c | 6228 | suffix = "ns"; |
7e08e190 | 6229 | else if (mode == CCmode || mode == CCGCmode) |
e075ae69 | 6230 | suffix = "ge"; |
9076b9c1 | 6231 | else |
0f290768 | 6232 | abort (); |
a269a03c | 6233 | break; |
a269a03c | 6234 | case GEU: |
e075ae69 | 6235 | /* ??? As above. */ |
7e08e190 | 6236 | if (mode != CCmode) |
0f290768 | 6237 | abort (); |
7e08e190 | 6238 | suffix = fp ? "nb" : "ae"; |
a269a03c | 6239 | break; |
a269a03c | 6240 | case LE: |
7e08e190 | 6241 | if (mode != CCmode && mode != CCGCmode && mode != CCNOmode) |
e075ae69 RH |
6242 | abort (); |
6243 | suffix = "le"; | |
a269a03c | 6244 | break; |
a269a03c | 6245 | case LEU: |
9076b9c1 JH |
6246 | if (mode != CCmode) |
6247 | abort (); | |
7e08e190 | 6248 | suffix = "be"; |
a269a03c | 6249 | break; |
3a3677ff | 6250 | case UNORDERED: |
9e7adcb3 | 6251 | suffix = fp ? "u" : "p"; |
3a3677ff RH |
6252 | break; |
6253 | case ORDERED: | |
9e7adcb3 | 6254 | suffix = fp ? "nu" : "np"; |
3a3677ff | 6255 | break; |
a269a03c JC |
6256 | default: |
6257 | abort (); | |
6258 | } | |
6259 | fputs (suffix, file); | |
6260 | } | |
6261 | ||
e075ae69 RH |
6262 | void |
6263 | print_reg (x, code, file) | |
6264 | rtx x; | |
6265 | int code; | |
6266 | FILE *file; | |
e5cb57e8 | 6267 | { |
e075ae69 | 6268 | if (REGNO (x) == ARG_POINTER_REGNUM |
564d80f4 | 6269 | || REGNO (x) == FRAME_POINTER_REGNUM |
e075ae69 RH |
6270 | || REGNO (x) == FLAGS_REG |
6271 | || REGNO (x) == FPSR_REG) | |
6272 | abort (); | |
e9a25f70 | 6273 | |
5bf0ebab | 6274 | if (ASSEMBLER_DIALECT == ASM_ATT || USER_LABEL_PREFIX[0] == 0) |
e075ae69 RH |
6275 | putc ('%', file); |
6276 | ||
ef6257cd | 6277 | if (code == 'w' || MMX_REG_P (x)) |
e075ae69 RH |
6278 | code = 2; |
6279 | else if (code == 'b') | |
6280 | code = 1; | |
6281 | else if (code == 'k') | |
6282 | code = 4; | |
3f3f2124 JH |
6283 | else if (code == 'q') |
6284 | code = 8; | |
e075ae69 RH |
6285 | else if (code == 'y') |
6286 | code = 3; | |
6287 | else if (code == 'h') | |
6288 | code = 0; | |
6289 | else | |
6290 | code = GET_MODE_SIZE (GET_MODE (x)); | |
e9a25f70 | 6291 | |
3f3f2124 JH |
6292 | /* Irritatingly, AMD extended registers use different naming convention |
6293 | from the normal registers. */ | |
6294 | if (REX_INT_REG_P (x)) | |
6295 | { | |
885a70fd JH |
6296 | if (!TARGET_64BIT) |
6297 | abort (); | |
3f3f2124 JH |
6298 | switch (code) |
6299 | { | |
ef6257cd | 6300 | case 0: |
c725bd79 | 6301 | error ("extended registers have no high halves"); |
3f3f2124 JH |
6302 | break; |
6303 | case 1: | |
6304 | fprintf (file, "r%ib", REGNO (x) - FIRST_REX_INT_REG + 8); | |
6305 | break; | |
6306 | case 2: | |
6307 | fprintf (file, "r%iw", REGNO (x) - FIRST_REX_INT_REG + 8); | |
6308 | break; | |
6309 | case 4: | |
6310 | fprintf (file, "r%id", REGNO (x) - FIRST_REX_INT_REG + 8); | |
6311 | break; | |
6312 | case 8: | |
6313 | fprintf (file, "r%i", REGNO (x) - FIRST_REX_INT_REG + 8); | |
6314 | break; | |
6315 | default: | |
c725bd79 | 6316 | error ("unsupported operand size for extended register"); |
3f3f2124 JH |
6317 | break; |
6318 | } | |
6319 | return; | |
6320 | } | |
e075ae69 RH |
6321 | switch (code) |
6322 | { | |
6323 | case 3: | |
6324 | if (STACK_TOP_P (x)) | |
6325 | { | |
6326 | fputs ("st(0)", file); | |
6327 | break; | |
6328 | } | |
6329 | /* FALLTHRU */ | |
e075ae69 | 6330 | case 8: |
3f3f2124 | 6331 | case 4: |
e075ae69 | 6332 | case 12: |
446988df | 6333 | if (! ANY_FP_REG_P (x)) |
885a70fd | 6334 | putc (code == 8 && TARGET_64BIT ? 'r' : 'e', file); |
e075ae69 | 6335 | /* FALLTHRU */ |
a7180f70 | 6336 | case 16: |
e075ae69 RH |
6337 | case 2: |
6338 | fputs (hi_reg_name[REGNO (x)], file); | |
6339 | break; | |
6340 | case 1: | |
6341 | fputs (qi_reg_name[REGNO (x)], file); | |
6342 | break; | |
6343 | case 0: | |
6344 | fputs (qi_high_reg_name[REGNO (x)], file); | |
6345 | break; | |
6346 | default: | |
6347 | abort (); | |
fe25fea3 | 6348 | } |
e5cb57e8 SC |
6349 | } |
6350 | ||
f996902d RH |
6351 | /* Locate some local-dynamic symbol still in use by this function |
6352 | so that we can print its name in some tls_local_dynamic_base | |
6353 | pattern. */ | |
6354 | ||
6355 | static const char * | |
6356 | get_some_local_dynamic_name () | |
6357 | { | |
6358 | rtx insn; | |
6359 | ||
6360 | if (cfun->machine->some_ld_name) | |
6361 | return cfun->machine->some_ld_name; | |
6362 | ||
6363 | for (insn = get_insns (); insn ; insn = NEXT_INSN (insn)) | |
6364 | if (INSN_P (insn) | |
6365 | && for_each_rtx (&PATTERN (insn), get_some_local_dynamic_name_1, 0)) | |
6366 | return cfun->machine->some_ld_name; | |
6367 | ||
6368 | abort (); | |
6369 | } | |
6370 | ||
6371 | static int | |
6372 | get_some_local_dynamic_name_1 (px, data) | |
6373 | rtx *px; | |
6374 | void *data ATTRIBUTE_UNUSED; | |
6375 | { | |
6376 | rtx x = *px; | |
6377 | ||
6378 | if (GET_CODE (x) == SYMBOL_REF | |
6379 | && local_dynamic_symbolic_operand (x, Pmode)) | |
6380 | { | |
6381 | cfun->machine->some_ld_name = XSTR (x, 0); | |
6382 | return 1; | |
6383 | } | |
6384 | ||
6385 | return 0; | |
6386 | } | |
6387 | ||
2a2ab3f9 | 6388 | /* Meaning of CODE: |
fe25fea3 | 6389 | L,W,B,Q,S,T -- print the opcode suffix for specified size of operand. |
e5cb57e8 | 6390 | C -- print opcode suffix for set/cmov insn. |
fe25fea3 | 6391 | c -- like C, but print reversed condition |
ef6257cd | 6392 | F,f -- likewise, but for floating-point. |
048b1c95 JJ |
6393 | O -- if CMOV_SUN_AS_SYNTAX, expand to "w.", "l." or "q.", otherwise |
6394 | nothing | |
2a2ab3f9 JVA |
6395 | R -- print the prefix for register names. |
6396 | z -- print the opcode suffix for the size of the current operand. | |
6397 | * -- print a star (in certain assembler syntax) | |
fb204271 | 6398 | A -- print an absolute memory reference. |
2a2ab3f9 | 6399 | w -- print the operand as if it's a "word" (HImode) even if it isn't. |
2d49677f SC |
6400 | s -- print a shift double count, followed by the assemblers argument |
6401 | delimiter. | |
fe25fea3 SC |
6402 | b -- print the QImode name of the register for the indicated operand. |
6403 | %b0 would print %al if operands[0] is reg 0. | |
6404 | w -- likewise, print the HImode name of the register. | |
6405 | k -- likewise, print the SImode name of the register. | |
3f3f2124 | 6406 | q -- likewise, print the DImode name of the register. |
ef6257cd JH |
6407 | h -- print the QImode name for a "high" register, either ah, bh, ch or dh. |
6408 | y -- print "st(0)" instead of "st" as a register. | |
a46d1d38 | 6409 | D -- print condition for SSE cmp instruction. |
ef6257cd JH |
6410 | P -- if PIC, print an @PLT suffix. |
6411 | X -- don't print any sort of PIC '@' suffix for a symbol. | |
f996902d | 6412 | & -- print some in-use local-dynamic symbol name. |
a46d1d38 | 6413 | */ |
2a2ab3f9 JVA |
6414 | |
6415 | void | |
6416 | print_operand (file, x, code) | |
6417 | FILE *file; | |
6418 | rtx x; | |
6419 | int code; | |
6420 | { | |
6421 | if (code) | |
6422 | { | |
6423 | switch (code) | |
6424 | { | |
6425 | case '*': | |
80f33d06 | 6426 | if (ASSEMBLER_DIALECT == ASM_ATT) |
2a2ab3f9 JVA |
6427 | putc ('*', file); |
6428 | return; | |
6429 | ||
f996902d RH |
6430 | case '&': |
6431 | assemble_name (file, get_some_local_dynamic_name ()); | |
6432 | return; | |
6433 | ||
fb204271 | 6434 | case 'A': |
80f33d06 | 6435 | if (ASSEMBLER_DIALECT == ASM_ATT) |
fb204271 | 6436 | putc ('*', file); |
80f33d06 | 6437 | else if (ASSEMBLER_DIALECT == ASM_INTEL) |
fb204271 DN |
6438 | { |
6439 | /* Intel syntax. For absolute addresses, registers should not | |
6440 | be surrounded by braces. */ | |
6441 | if (GET_CODE (x) != REG) | |
6442 | { | |
6443 | putc ('[', file); | |
6444 | PRINT_OPERAND (file, x, 0); | |
6445 | putc (']', file); | |
6446 | return; | |
6447 | } | |
6448 | } | |
80f33d06 GS |
6449 | else |
6450 | abort (); | |
fb204271 DN |
6451 | |
6452 | PRINT_OPERAND (file, x, 0); | |
6453 | return; | |
6454 | ||
6455 | ||
2a2ab3f9 | 6456 | case 'L': |
80f33d06 | 6457 | if (ASSEMBLER_DIALECT == ASM_ATT) |
e075ae69 | 6458 | putc ('l', file); |
2a2ab3f9 JVA |
6459 | return; |
6460 | ||
6461 | case 'W': | |
80f33d06 | 6462 | if (ASSEMBLER_DIALECT == ASM_ATT) |
e075ae69 | 6463 | putc ('w', file); |
2a2ab3f9 JVA |
6464 | return; |
6465 | ||
6466 | case 'B': | |
80f33d06 | 6467 | if (ASSEMBLER_DIALECT == ASM_ATT) |
e075ae69 | 6468 | putc ('b', file); |
2a2ab3f9 JVA |
6469 | return; |
6470 | ||
6471 | case 'Q': | |
80f33d06 | 6472 | if (ASSEMBLER_DIALECT == ASM_ATT) |
e075ae69 | 6473 | putc ('l', file); |
2a2ab3f9 JVA |
6474 | return; |
6475 | ||
6476 | case 'S': | |
80f33d06 | 6477 | if (ASSEMBLER_DIALECT == ASM_ATT) |
e075ae69 | 6478 | putc ('s', file); |
2a2ab3f9 JVA |
6479 | return; |
6480 | ||
5f1ec3e6 | 6481 | case 'T': |
80f33d06 | 6482 | if (ASSEMBLER_DIALECT == ASM_ATT) |
e075ae69 | 6483 | putc ('t', file); |
5f1ec3e6 JVA |
6484 | return; |
6485 | ||
2a2ab3f9 JVA |
6486 | case 'z': |
6487 | /* 387 opcodes don't get size suffixes if the operands are | |
0f290768 | 6488 | registers. */ |
2a2ab3f9 JVA |
6489 | if (STACK_REG_P (x)) |
6490 | return; | |
6491 | ||
831c4e87 KC |
6492 | /* Likewise if using Intel opcodes. */ |
6493 | if (ASSEMBLER_DIALECT == ASM_INTEL) | |
6494 | return; | |
6495 | ||
6496 | /* This is the size of op from size of operand. */ | |
2a2ab3f9 JVA |
6497 | switch (GET_MODE_SIZE (GET_MODE (x))) |
6498 | { | |
2a2ab3f9 | 6499 | case 2: |
155d8a47 JW |
6500 | #ifdef HAVE_GAS_FILDS_FISTS |
6501 | putc ('s', file); | |
6502 | #endif | |
2a2ab3f9 JVA |
6503 | return; |
6504 | ||
6505 | case 4: | |
6506 | if (GET_MODE (x) == SFmode) | |
6507 | { | |
e075ae69 | 6508 | putc ('s', file); |
2a2ab3f9 JVA |
6509 | return; |
6510 | } | |
6511 | else | |
e075ae69 | 6512 | putc ('l', file); |
2a2ab3f9 JVA |
6513 | return; |
6514 | ||
5f1ec3e6 | 6515 | case 12: |
2b589241 | 6516 | case 16: |
e075ae69 RH |
6517 | putc ('t', file); |
6518 | return; | |
5f1ec3e6 | 6519 | |
2a2ab3f9 JVA |
6520 | case 8: |
6521 | if (GET_MODE_CLASS (GET_MODE (x)) == MODE_INT) | |
56c0e8fa JVA |
6522 | { |
6523 | #ifdef GAS_MNEMONICS | |
e075ae69 | 6524 | putc ('q', file); |
56c0e8fa | 6525 | #else |
e075ae69 RH |
6526 | putc ('l', file); |
6527 | putc ('l', file); | |
56c0e8fa JVA |
6528 | #endif |
6529 | } | |
e075ae69 RH |
6530 | else |
6531 | putc ('l', file); | |
2a2ab3f9 | 6532 | return; |
155d8a47 JW |
6533 | |
6534 | default: | |
6535 | abort (); | |
2a2ab3f9 | 6536 | } |
4af3895e JVA |
6537 | |
6538 | case 'b': | |
6539 | case 'w': | |
6540 | case 'k': | |
3f3f2124 | 6541 | case 'q': |
4af3895e JVA |
6542 | case 'h': |
6543 | case 'y': | |
5cb6195d | 6544 | case 'X': |
e075ae69 | 6545 | case 'P': |
4af3895e JVA |
6546 | break; |
6547 | ||
2d49677f SC |
6548 | case 's': |
6549 | if (GET_CODE (x) == CONST_INT || ! SHIFT_DOUBLE_OMITS_COUNT) | |
6550 | { | |
6551 | PRINT_OPERAND (file, x, 0); | |
e075ae69 | 6552 | putc (',', file); |
2d49677f | 6553 | } |
a269a03c JC |
6554 | return; |
6555 | ||
a46d1d38 JH |
6556 | case 'D': |
6557 | /* Little bit of braindamage here. The SSE compare instructions | |
6558 | does use completely different names for the comparisons that the | |
6559 | fp conditional moves. */ | |
6560 | switch (GET_CODE (x)) | |
6561 | { | |
6562 | case EQ: | |
6563 | case UNEQ: | |
6564 | fputs ("eq", file); | |
6565 | break; | |
6566 | case LT: | |
6567 | case UNLT: | |
6568 | fputs ("lt", file); | |
6569 | break; | |
6570 | case LE: | |
6571 | case UNLE: | |
6572 | fputs ("le", file); | |
6573 | break; | |
6574 | case UNORDERED: | |
6575 | fputs ("unord", file); | |
6576 | break; | |
6577 | case NE: | |
6578 | case LTGT: | |
6579 | fputs ("neq", file); | |
6580 | break; | |
6581 | case UNGE: | |
6582 | case GE: | |
6583 | fputs ("nlt", file); | |
6584 | break; | |
6585 | case UNGT: | |
6586 | case GT: | |
6587 | fputs ("nle", file); | |
6588 | break; | |
6589 | case ORDERED: | |
6590 | fputs ("ord", file); | |
6591 | break; | |
6592 | default: | |
6593 | abort (); | |
6594 | break; | |
6595 | } | |
6596 | return; | |
048b1c95 JJ |
6597 | case 'O': |
6598 | #ifdef CMOV_SUN_AS_SYNTAX | |
6599 | if (ASSEMBLER_DIALECT == ASM_ATT) | |
6600 | { | |
6601 | switch (GET_MODE (x)) | |
6602 | { | |
6603 | case HImode: putc ('w', file); break; | |
6604 | case SImode: | |
6605 | case SFmode: putc ('l', file); break; | |
6606 | case DImode: | |
6607 | case DFmode: putc ('q', file); break; | |
6608 | default: abort (); | |
6609 | } | |
6610 | putc ('.', file); | |
6611 | } | |
6612 | #endif | |
6613 | return; | |
1853aadd | 6614 | case 'C': |
e075ae69 | 6615 | put_condition_code (GET_CODE (x), GET_MODE (XEXP (x, 0)), 0, 0, file); |
1853aadd | 6616 | return; |
fe25fea3 | 6617 | case 'F': |
048b1c95 JJ |
6618 | #ifdef CMOV_SUN_AS_SYNTAX |
6619 | if (ASSEMBLER_DIALECT == ASM_ATT) | |
6620 | putc ('.', file); | |
6621 | #endif | |
e075ae69 | 6622 | put_condition_code (GET_CODE (x), GET_MODE (XEXP (x, 0)), 0, 1, file); |
fe25fea3 SC |
6623 | return; |
6624 | ||
e9a25f70 | 6625 | /* Like above, but reverse condition */ |
e075ae69 | 6626 | case 'c': |
fce5a9f2 | 6627 | /* Check to see if argument to %c is really a constant |
c1d5afc4 CR |
6628 | and not a condition code which needs to be reversed. */ |
6629 | if (GET_RTX_CLASS (GET_CODE (x)) != '<') | |
6630 | { | |
6631 | output_operand_lossage ("operand is neither a constant nor a condition code, invalid operand code 'c'"); | |
6632 | return; | |
6633 | } | |
e075ae69 RH |
6634 | put_condition_code (GET_CODE (x), GET_MODE (XEXP (x, 0)), 1, 0, file); |
6635 | return; | |
fe25fea3 | 6636 | case 'f': |
048b1c95 JJ |
6637 | #ifdef CMOV_SUN_AS_SYNTAX |
6638 | if (ASSEMBLER_DIALECT == ASM_ATT) | |
6639 | putc ('.', file); | |
6640 | #endif | |
e075ae69 | 6641 | put_condition_code (GET_CODE (x), GET_MODE (XEXP (x, 0)), 1, 1, file); |
1853aadd | 6642 | return; |
ef6257cd JH |
6643 | case '+': |
6644 | { | |
6645 | rtx x; | |
e5cb57e8 | 6646 | |
ef6257cd JH |
6647 | if (!optimize || optimize_size || !TARGET_BRANCH_PREDICTION_HINTS) |
6648 | return; | |
a4f31c00 | 6649 | |
ef6257cd JH |
6650 | x = find_reg_note (current_output_insn, REG_BR_PROB, 0); |
6651 | if (x) | |
6652 | { | |
6653 | int pred_val = INTVAL (XEXP (x, 0)); | |
6654 | ||
6655 | if (pred_val < REG_BR_PROB_BASE * 45 / 100 | |
6656 | || pred_val > REG_BR_PROB_BASE * 55 / 100) | |
6657 | { | |
6658 | int taken = pred_val > REG_BR_PROB_BASE / 2; | |
6659 | int cputaken = final_forward_branch_p (current_output_insn) == 0; | |
6660 | ||
6661 | /* Emit hints only in the case default branch prediction | |
6662 | heruistics would fail. */ | |
6663 | if (taken != cputaken) | |
6664 | { | |
6665 | /* We use 3e (DS) prefix for taken branches and | |
6666 | 2e (CS) prefix for not taken branches. */ | |
6667 | if (taken) | |
6668 | fputs ("ds ; ", file); | |
6669 | else | |
6670 | fputs ("cs ; ", file); | |
6671 | } | |
6672 | } | |
6673 | } | |
6674 | return; | |
6675 | } | |
4af3895e | 6676 | default: |
a52453cc | 6677 | output_operand_lossage ("invalid operand code `%c'", code); |
2a2ab3f9 JVA |
6678 | } |
6679 | } | |
e9a25f70 | 6680 | |
2a2ab3f9 JVA |
6681 | if (GET_CODE (x) == REG) |
6682 | { | |
6683 | PRINT_REG (x, code, file); | |
6684 | } | |
e9a25f70 | 6685 | |
2a2ab3f9 JVA |
6686 | else if (GET_CODE (x) == MEM) |
6687 | { | |
e075ae69 | 6688 | /* No `byte ptr' prefix for call instructions. */ |
80f33d06 | 6689 | if (ASSEMBLER_DIALECT == ASM_INTEL && code != 'X' && code != 'P') |
2a2ab3f9 | 6690 | { |
69ddee61 | 6691 | const char * size; |
e075ae69 RH |
6692 | switch (GET_MODE_SIZE (GET_MODE (x))) |
6693 | { | |
6694 | case 1: size = "BYTE"; break; | |
6695 | case 2: size = "WORD"; break; | |
6696 | case 4: size = "DWORD"; break; | |
6697 | case 8: size = "QWORD"; break; | |
6698 | case 12: size = "XWORD"; break; | |
a7180f70 | 6699 | case 16: size = "XMMWORD"; break; |
e075ae69 | 6700 | default: |
564d80f4 | 6701 | abort (); |
e075ae69 | 6702 | } |
fb204271 DN |
6703 | |
6704 | /* Check for explicit size override (codes 'b', 'w' and 'k') */ | |
6705 | if (code == 'b') | |
6706 | size = "BYTE"; | |
6707 | else if (code == 'w') | |
6708 | size = "WORD"; | |
6709 | else if (code == 'k') | |
6710 | size = "DWORD"; | |
6711 | ||
e075ae69 RH |
6712 | fputs (size, file); |
6713 | fputs (" PTR ", file); | |
2a2ab3f9 | 6714 | } |
e075ae69 RH |
6715 | |
6716 | x = XEXP (x, 0); | |
6717 | if (flag_pic && CONSTANT_ADDRESS_P (x)) | |
6718 | output_pic_addr_const (file, x, code); | |
0d7d98ee | 6719 | /* Avoid (%rip) for call operands. */ |
5bf0ebab | 6720 | else if (CONSTANT_ADDRESS_P (x) && code == 'P' |
0d7d98ee JH |
6721 | && GET_CODE (x) != CONST_INT) |
6722 | output_addr_const (file, x); | |
c8b94768 RH |
6723 | else if (this_is_asm_operands && ! address_operand (x, VOIDmode)) |
6724 | output_operand_lossage ("invalid constraints for operand"); | |
2a2ab3f9 | 6725 | else |
e075ae69 | 6726 | output_address (x); |
2a2ab3f9 | 6727 | } |
e9a25f70 | 6728 | |
2a2ab3f9 JVA |
6729 | else if (GET_CODE (x) == CONST_DOUBLE && GET_MODE (x) == SFmode) |
6730 | { | |
e9a25f70 JL |
6731 | REAL_VALUE_TYPE r; |
6732 | long l; | |
6733 | ||
5f1ec3e6 JVA |
6734 | REAL_VALUE_FROM_CONST_DOUBLE (r, x); |
6735 | REAL_VALUE_TO_TARGET_SINGLE (r, l); | |
e075ae69 | 6736 | |
80f33d06 | 6737 | if (ASSEMBLER_DIALECT == ASM_ATT) |
e075ae69 | 6738 | putc ('$', file); |
52267fcb | 6739 | fprintf (file, "0x%lx", l); |
5f1ec3e6 | 6740 | } |
e9a25f70 | 6741 | |
0f290768 | 6742 | /* These float cases don't actually occur as immediate operands. */ |
5f1ec3e6 JVA |
6743 | else if (GET_CODE (x) == CONST_DOUBLE && GET_MODE (x) == DFmode) |
6744 | { | |
e9a25f70 JL |
6745 | char dstr[30]; |
6746 | ||
da6eec72 | 6747 | real_to_decimal (dstr, CONST_DOUBLE_REAL_VALUE (x), sizeof (dstr), 0, 1); |
5f1ec3e6 | 6748 | fprintf (file, "%s", dstr); |
2a2ab3f9 | 6749 | } |
e9a25f70 | 6750 | |
2b589241 JH |
6751 | else if (GET_CODE (x) == CONST_DOUBLE |
6752 | && (GET_MODE (x) == XFmode || GET_MODE (x) == TFmode)) | |
2a2ab3f9 | 6753 | { |
e9a25f70 JL |
6754 | char dstr[30]; |
6755 | ||
da6eec72 | 6756 | real_to_decimal (dstr, CONST_DOUBLE_REAL_VALUE (x), sizeof (dstr), 0, 1); |
5f1ec3e6 | 6757 | fprintf (file, "%s", dstr); |
2a2ab3f9 | 6758 | } |
f996902d | 6759 | |
79325812 | 6760 | else |
2a2ab3f9 | 6761 | { |
4af3895e | 6762 | if (code != 'P') |
2a2ab3f9 | 6763 | { |
695dac07 | 6764 | if (GET_CODE (x) == CONST_INT || GET_CODE (x) == CONST_DOUBLE) |
e075ae69 | 6765 | { |
80f33d06 | 6766 | if (ASSEMBLER_DIALECT == ASM_ATT) |
e075ae69 RH |
6767 | putc ('$', file); |
6768 | } | |
2a2ab3f9 JVA |
6769 | else if (GET_CODE (x) == CONST || GET_CODE (x) == SYMBOL_REF |
6770 | || GET_CODE (x) == LABEL_REF) | |
e075ae69 | 6771 | { |
80f33d06 | 6772 | if (ASSEMBLER_DIALECT == ASM_ATT) |
e075ae69 RH |
6773 | putc ('$', file); |
6774 | else | |
6775 | fputs ("OFFSET FLAT:", file); | |
6776 | } | |
2a2ab3f9 | 6777 | } |
e075ae69 RH |
6778 | if (GET_CODE (x) == CONST_INT) |
6779 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, INTVAL (x)); | |
6780 | else if (flag_pic) | |
2a2ab3f9 JVA |
6781 | output_pic_addr_const (file, x, code); |
6782 | else | |
6783 | output_addr_const (file, x); | |
6784 | } | |
6785 | } | |
6786 | \f | |
6787 | /* Print a memory operand whose address is ADDR. */ | |
6788 | ||
6789 | void | |
6790 | print_operand_address (file, addr) | |
6791 | FILE *file; | |
6792 | register rtx addr; | |
6793 | { | |
e075ae69 RH |
6794 | struct ix86_address parts; |
6795 | rtx base, index, disp; | |
6796 | int scale; | |
e9a25f70 | 6797 | |
9e20be0c JJ |
6798 | if (GET_CODE (addr) == UNSPEC && XINT (addr, 1) == UNSPEC_TP) |
6799 | { | |
6800 | if (ASSEMBLER_DIALECT == ASM_INTEL) | |
6801 | fputs ("DWORD PTR ", file); | |
6802 | if (ASSEMBLER_DIALECT == ASM_ATT || USER_LABEL_PREFIX[0] == 0) | |
6803 | putc ('%', file); | |
6804 | fputs ("gs:0", file); | |
6805 | return; | |
6806 | } | |
6807 | ||
e075ae69 RH |
6808 | if (! ix86_decompose_address (addr, &parts)) |
6809 | abort (); | |
e9a25f70 | 6810 | |
e075ae69 RH |
6811 | base = parts.base; |
6812 | index = parts.index; | |
6813 | disp = parts.disp; | |
6814 | scale = parts.scale; | |
e9a25f70 | 6815 | |
e075ae69 RH |
6816 | if (!base && !index) |
6817 | { | |
6818 | /* Displacement only requires special attention. */ | |
e9a25f70 | 6819 | |
e075ae69 | 6820 | if (GET_CODE (disp) == CONST_INT) |
2a2ab3f9 | 6821 | { |
80f33d06 | 6822 | if (ASSEMBLER_DIALECT == ASM_INTEL) |
fb204271 DN |
6823 | { |
6824 | if (USER_LABEL_PREFIX[0] == 0) | |
6825 | putc ('%', file); | |
6826 | fputs ("ds:", file); | |
6827 | } | |
e075ae69 | 6828 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, INTVAL (addr)); |
2a2ab3f9 | 6829 | } |
e075ae69 RH |
6830 | else if (flag_pic) |
6831 | output_pic_addr_const (file, addr, 0); | |
6832 | else | |
6833 | output_addr_const (file, addr); | |
0d7d98ee JH |
6834 | |
6835 | /* Use one byte shorter RIP relative addressing for 64bit mode. */ | |
edfe8595 RH |
6836 | if (TARGET_64BIT |
6837 | && (GET_CODE (addr) == SYMBOL_REF | |
6838 | || GET_CODE (addr) == LABEL_REF | |
6839 | || (GET_CODE (addr) == CONST | |
6840 | && GET_CODE (XEXP (addr, 0)) == PLUS | |
200bcf7e JH |
6841 | && (GET_CODE (XEXP (XEXP (addr, 0), 0)) == SYMBOL_REF |
6842 | || GET_CODE (XEXP (XEXP (addr, 0), 0)) == LABEL_REF) | |
edfe8595 | 6843 | && GET_CODE (XEXP (XEXP (addr, 0), 1)) == CONST_INT))) |
0d7d98ee | 6844 | fputs ("(%rip)", file); |
e075ae69 RH |
6845 | } |
6846 | else | |
6847 | { | |
80f33d06 | 6848 | if (ASSEMBLER_DIALECT == ASM_ATT) |
2a2ab3f9 | 6849 | { |
e075ae69 | 6850 | if (disp) |
2a2ab3f9 | 6851 | { |
c399861d | 6852 | if (flag_pic) |
e075ae69 RH |
6853 | output_pic_addr_const (file, disp, 0); |
6854 | else if (GET_CODE (disp) == LABEL_REF) | |
6855 | output_asm_label (disp); | |
2a2ab3f9 | 6856 | else |
e075ae69 | 6857 | output_addr_const (file, disp); |
2a2ab3f9 JVA |
6858 | } |
6859 | ||
e075ae69 RH |
6860 | putc ('(', file); |
6861 | if (base) | |
6862 | PRINT_REG (base, 0, file); | |
6863 | if (index) | |
2a2ab3f9 | 6864 | { |
e075ae69 RH |
6865 | putc (',', file); |
6866 | PRINT_REG (index, 0, file); | |
6867 | if (scale != 1) | |
6868 | fprintf (file, ",%d", scale); | |
2a2ab3f9 | 6869 | } |
e075ae69 | 6870 | putc (')', file); |
2a2ab3f9 | 6871 | } |
2a2ab3f9 JVA |
6872 | else |
6873 | { | |
e075ae69 | 6874 | rtx offset = NULL_RTX; |
e9a25f70 | 6875 | |
e075ae69 RH |
6876 | if (disp) |
6877 | { | |
6878 | /* Pull out the offset of a symbol; print any symbol itself. */ | |
6879 | if (GET_CODE (disp) == CONST | |
6880 | && GET_CODE (XEXP (disp, 0)) == PLUS | |
6881 | && GET_CODE (XEXP (XEXP (disp, 0), 1)) == CONST_INT) | |
6882 | { | |
6883 | offset = XEXP (XEXP (disp, 0), 1); | |
6884 | disp = gen_rtx_CONST (VOIDmode, | |
6885 | XEXP (XEXP (disp, 0), 0)); | |
6886 | } | |
ce193852 | 6887 | |
e075ae69 RH |
6888 | if (flag_pic) |
6889 | output_pic_addr_const (file, disp, 0); | |
6890 | else if (GET_CODE (disp) == LABEL_REF) | |
6891 | output_asm_label (disp); | |
6892 | else if (GET_CODE (disp) == CONST_INT) | |
6893 | offset = disp; | |
6894 | else | |
6895 | output_addr_const (file, disp); | |
6896 | } | |
e9a25f70 | 6897 | |
e075ae69 RH |
6898 | putc ('[', file); |
6899 | if (base) | |
a8620236 | 6900 | { |
e075ae69 RH |
6901 | PRINT_REG (base, 0, file); |
6902 | if (offset) | |
6903 | { | |
6904 | if (INTVAL (offset) >= 0) | |
6905 | putc ('+', file); | |
6906 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, INTVAL (offset)); | |
6907 | } | |
a8620236 | 6908 | } |
e075ae69 RH |
6909 | else if (offset) |
6910 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, INTVAL (offset)); | |
2247a58c | 6911 | else |
e075ae69 | 6912 | putc ('0', file); |
e9a25f70 | 6913 | |
e075ae69 RH |
6914 | if (index) |
6915 | { | |
6916 | putc ('+', file); | |
6917 | PRINT_REG (index, 0, file); | |
6918 | if (scale != 1) | |
6919 | fprintf (file, "*%d", scale); | |
6920 | } | |
6921 | putc (']', file); | |
6922 | } | |
2a2ab3f9 JVA |
6923 | } |
6924 | } | |
f996902d RH |
6925 | |
6926 | bool | |
6927 | output_addr_const_extra (file, x) | |
6928 | FILE *file; | |
6929 | rtx x; | |
6930 | { | |
6931 | rtx op; | |
6932 | ||
6933 | if (GET_CODE (x) != UNSPEC) | |
6934 | return false; | |
6935 | ||
6936 | op = XVECEXP (x, 0, 0); | |
6937 | switch (XINT (x, 1)) | |
6938 | { | |
6939 | case UNSPEC_GOTTPOFF: | |
6940 | output_addr_const (file, op); | |
dea73790 | 6941 | /* FIXME: This might be @TPOFF in Sun ld. */ |
f996902d RH |
6942 | fputs ("@GOTTPOFF", file); |
6943 | break; | |
6944 | case UNSPEC_TPOFF: | |
6945 | output_addr_const (file, op); | |
6946 | fputs ("@TPOFF", file); | |
6947 | break; | |
6948 | case UNSPEC_NTPOFF: | |
6949 | output_addr_const (file, op); | |
6950 | fputs ("@NTPOFF", file); | |
6951 | break; | |
6952 | case UNSPEC_DTPOFF: | |
6953 | output_addr_const (file, op); | |
6954 | fputs ("@DTPOFF", file); | |
6955 | break; | |
dea73790 JJ |
6956 | case UNSPEC_GOTNTPOFF: |
6957 | output_addr_const (file, op); | |
6958 | fputs ("@GOTNTPOFF", file); | |
6959 | break; | |
6960 | case UNSPEC_INDNTPOFF: | |
6961 | output_addr_const (file, op); | |
6962 | fputs ("@INDNTPOFF", file); | |
6963 | break; | |
f996902d RH |
6964 | |
6965 | default: | |
6966 | return false; | |
6967 | } | |
6968 | ||
6969 | return true; | |
6970 | } | |
2a2ab3f9 JVA |
6971 | \f |
6972 | /* Split one or more DImode RTL references into pairs of SImode | |
6973 | references. The RTL can be REG, offsettable MEM, integer constant, or | |
6974 | CONST_DOUBLE. "operands" is a pointer to an array of DImode RTL to | |
6975 | split and "num" is its length. lo_half and hi_half are output arrays | |
0f290768 | 6976 | that parallel "operands". */ |
2a2ab3f9 JVA |
6977 | |
6978 | void | |
6979 | split_di (operands, num, lo_half, hi_half) | |
6980 | rtx operands[]; | |
6981 | int num; | |
6982 | rtx lo_half[], hi_half[]; | |
6983 | { | |
6984 | while (num--) | |
6985 | { | |
57dbca5e | 6986 | rtx op = operands[num]; |
b932f770 JH |
6987 | |
6988 | /* simplify_subreg refuse to split volatile memory addresses, | |
6989 | but we still have to handle it. */ | |
6990 | if (GET_CODE (op) == MEM) | |
2a2ab3f9 | 6991 | { |
f4ef873c | 6992 | lo_half[num] = adjust_address (op, SImode, 0); |
b72f00af | 6993 | hi_half[num] = adjust_address (op, SImode, 4); |
2a2ab3f9 JVA |
6994 | } |
6995 | else | |
b932f770 | 6996 | { |
38ca929b JH |
6997 | lo_half[num] = simplify_gen_subreg (SImode, op, |
6998 | GET_MODE (op) == VOIDmode | |
6999 | ? DImode : GET_MODE (op), 0); | |
7000 | hi_half[num] = simplify_gen_subreg (SImode, op, | |
7001 | GET_MODE (op) == VOIDmode | |
7002 | ? DImode : GET_MODE (op), 4); | |
b932f770 | 7003 | } |
2a2ab3f9 JVA |
7004 | } |
7005 | } | |
44cf5b6a JH |
7006 | /* Split one or more TImode RTL references into pairs of SImode |
7007 | references. The RTL can be REG, offsettable MEM, integer constant, or | |
7008 | CONST_DOUBLE. "operands" is a pointer to an array of DImode RTL to | |
7009 | split and "num" is its length. lo_half and hi_half are output arrays | |
7010 | that parallel "operands". */ | |
7011 | ||
7012 | void | |
7013 | split_ti (operands, num, lo_half, hi_half) | |
7014 | rtx operands[]; | |
7015 | int num; | |
7016 | rtx lo_half[], hi_half[]; | |
7017 | { | |
7018 | while (num--) | |
7019 | { | |
7020 | rtx op = operands[num]; | |
b932f770 JH |
7021 | |
7022 | /* simplify_subreg refuse to split volatile memory addresses, but we | |
7023 | still have to handle it. */ | |
7024 | if (GET_CODE (op) == MEM) | |
44cf5b6a JH |
7025 | { |
7026 | lo_half[num] = adjust_address (op, DImode, 0); | |
7027 | hi_half[num] = adjust_address (op, DImode, 8); | |
7028 | } | |
7029 | else | |
b932f770 JH |
7030 | { |
7031 | lo_half[num] = simplify_gen_subreg (DImode, op, TImode, 0); | |
7032 | hi_half[num] = simplify_gen_subreg (DImode, op, TImode, 8); | |
7033 | } | |
44cf5b6a JH |
7034 | } |
7035 | } | |
2a2ab3f9 | 7036 | \f |
2a2ab3f9 JVA |
7037 | /* Output code to perform a 387 binary operation in INSN, one of PLUS, |
7038 | MINUS, MULT or DIV. OPERANDS are the insn operands, where operands[3] | |
7039 | is the expression of the binary operation. The output may either be | |
7040 | emitted here, or returned to the caller, like all output_* functions. | |
7041 | ||
7042 | There is no guarantee that the operands are the same mode, as they | |
0f290768 | 7043 | might be within FLOAT or FLOAT_EXTEND expressions. */ |
2a2ab3f9 | 7044 | |
e3c2afab AM |
7045 | #ifndef SYSV386_COMPAT |
7046 | /* Set to 1 for compatibility with brain-damaged assemblers. No-one | |
7047 | wants to fix the assemblers because that causes incompatibility | |
7048 | with gcc. No-one wants to fix gcc because that causes | |
7049 | incompatibility with assemblers... You can use the option of | |
7050 | -DSYSV386_COMPAT=0 if you recompile both gcc and gas this way. */ | |
7051 | #define SYSV386_COMPAT 1 | |
7052 | #endif | |
7053 | ||
69ddee61 | 7054 | const char * |
2a2ab3f9 JVA |
7055 | output_387_binary_op (insn, operands) |
7056 | rtx insn; | |
7057 | rtx *operands; | |
7058 | { | |
e3c2afab | 7059 | static char buf[30]; |
69ddee61 | 7060 | const char *p; |
1deaa899 JH |
7061 | const char *ssep; |
7062 | int is_sse = SSE_REG_P (operands[0]) | SSE_REG_P (operands[1]) | SSE_REG_P (operands[2]); | |
2a2ab3f9 | 7063 | |
e3c2afab AM |
7064 | #ifdef ENABLE_CHECKING |
7065 | /* Even if we do not want to check the inputs, this documents input | |
7066 | constraints. Which helps in understanding the following code. */ | |
7067 | if (STACK_REG_P (operands[0]) | |
7068 | && ((REG_P (operands[1]) | |
7069 | && REGNO (operands[0]) == REGNO (operands[1]) | |
7070 | && (STACK_REG_P (operands[2]) || GET_CODE (operands[2]) == MEM)) | |
7071 | || (REG_P (operands[2]) | |
7072 | && REGNO (operands[0]) == REGNO (operands[2]) | |
7073 | && (STACK_REG_P (operands[1]) || GET_CODE (operands[1]) == MEM))) | |
7074 | && (STACK_TOP_P (operands[1]) || STACK_TOP_P (operands[2]))) | |
7075 | ; /* ok */ | |
1deaa899 | 7076 | else if (!is_sse) |
e3c2afab AM |
7077 | abort (); |
7078 | #endif | |
7079 | ||
2a2ab3f9 JVA |
7080 | switch (GET_CODE (operands[3])) |
7081 | { | |
7082 | case PLUS: | |
e075ae69 RH |
7083 | if (GET_MODE_CLASS (GET_MODE (operands[1])) == MODE_INT |
7084 | || GET_MODE_CLASS (GET_MODE (operands[2])) == MODE_INT) | |
7085 | p = "fiadd"; | |
7086 | else | |
7087 | p = "fadd"; | |
1deaa899 | 7088 | ssep = "add"; |
2a2ab3f9 JVA |
7089 | break; |
7090 | ||
7091 | case MINUS: | |
e075ae69 RH |
7092 | if (GET_MODE_CLASS (GET_MODE (operands[1])) == MODE_INT |
7093 | || GET_MODE_CLASS (GET_MODE (operands[2])) == MODE_INT) | |
7094 | p = "fisub"; | |
7095 | else | |
7096 | p = "fsub"; | |
1deaa899 | 7097 | ssep = "sub"; |
2a2ab3f9 JVA |
7098 | break; |
7099 | ||
7100 | case MULT: | |
e075ae69 RH |
7101 | if (GET_MODE_CLASS (GET_MODE (operands[1])) == MODE_INT |
7102 | || GET_MODE_CLASS (GET_MODE (operands[2])) == MODE_INT) | |
7103 | p = "fimul"; | |
7104 | else | |
7105 | p = "fmul"; | |
1deaa899 | 7106 | ssep = "mul"; |
2a2ab3f9 JVA |
7107 | break; |
7108 | ||
7109 | case DIV: | |
e075ae69 RH |
7110 | if (GET_MODE_CLASS (GET_MODE (operands[1])) == MODE_INT |
7111 | || GET_MODE_CLASS (GET_MODE (operands[2])) == MODE_INT) | |
7112 | p = "fidiv"; | |
7113 | else | |
7114 | p = "fdiv"; | |
1deaa899 | 7115 | ssep = "div"; |
2a2ab3f9 JVA |
7116 | break; |
7117 | ||
7118 | default: | |
7119 | abort (); | |
7120 | } | |
7121 | ||
1deaa899 JH |
7122 | if (is_sse) |
7123 | { | |
7124 | strcpy (buf, ssep); | |
7125 | if (GET_MODE (operands[0]) == SFmode) | |
7126 | strcat (buf, "ss\t{%2, %0|%0, %2}"); | |
7127 | else | |
7128 | strcat (buf, "sd\t{%2, %0|%0, %2}"); | |
7129 | return buf; | |
7130 | } | |
e075ae69 | 7131 | strcpy (buf, p); |
2a2ab3f9 JVA |
7132 | |
7133 | switch (GET_CODE (operands[3])) | |
7134 | { | |
7135 | case MULT: | |
7136 | case PLUS: | |
7137 | if (REG_P (operands[2]) && REGNO (operands[0]) == REGNO (operands[2])) | |
7138 | { | |
e3c2afab | 7139 | rtx temp = operands[2]; |
2a2ab3f9 JVA |
7140 | operands[2] = operands[1]; |
7141 | operands[1] = temp; | |
7142 | } | |
7143 | ||
e3c2afab AM |
7144 | /* know operands[0] == operands[1]. */ |
7145 | ||
2a2ab3f9 | 7146 | if (GET_CODE (operands[2]) == MEM) |
e075ae69 RH |
7147 | { |
7148 | p = "%z2\t%2"; | |
7149 | break; | |
7150 | } | |
2a2ab3f9 JVA |
7151 | |
7152 | if (find_regno_note (insn, REG_DEAD, REGNO (operands[2]))) | |
6b28fd63 JL |
7153 | { |
7154 | if (STACK_TOP_P (operands[0])) | |
e3c2afab AM |
7155 | /* How is it that we are storing to a dead operand[2]? |
7156 | Well, presumably operands[1] is dead too. We can't | |
7157 | store the result to st(0) as st(0) gets popped on this | |
7158 | instruction. Instead store to operands[2] (which I | |
7159 | think has to be st(1)). st(1) will be popped later. | |
7160 | gcc <= 2.8.1 didn't have this check and generated | |
7161 | assembly code that the Unixware assembler rejected. */ | |
7162 | p = "p\t{%0, %2|%2, %0}"; /* st(1) = st(0) op st(1); pop */ | |
6b28fd63 | 7163 | else |
e3c2afab | 7164 | p = "p\t{%2, %0|%0, %2}"; /* st(r1) = st(r1) op st(0); pop */ |
e075ae69 | 7165 | break; |
6b28fd63 | 7166 | } |
2a2ab3f9 JVA |
7167 | |
7168 | if (STACK_TOP_P (operands[0])) | |
e3c2afab | 7169 | p = "\t{%y2, %0|%0, %y2}"; /* st(0) = st(0) op st(r2) */ |
2a2ab3f9 | 7170 | else |
e3c2afab | 7171 | p = "\t{%2, %0|%0, %2}"; /* st(r1) = st(r1) op st(0) */ |
e075ae69 | 7172 | break; |
2a2ab3f9 JVA |
7173 | |
7174 | case MINUS: | |
7175 | case DIV: | |
7176 | if (GET_CODE (operands[1]) == MEM) | |
e075ae69 RH |
7177 | { |
7178 | p = "r%z1\t%1"; | |
7179 | break; | |
7180 | } | |
2a2ab3f9 JVA |
7181 | |
7182 | if (GET_CODE (operands[2]) == MEM) | |
e075ae69 RH |
7183 | { |
7184 | p = "%z2\t%2"; | |
7185 | break; | |
7186 | } | |
2a2ab3f9 | 7187 | |
2a2ab3f9 | 7188 | if (find_regno_note (insn, REG_DEAD, REGNO (operands[2]))) |
6b28fd63 | 7189 | { |
e3c2afab AM |
7190 | #if SYSV386_COMPAT |
7191 | /* The SystemV/386 SVR3.2 assembler, and probably all AT&T | |
7192 | derived assemblers, confusingly reverse the direction of | |
7193 | the operation for fsub{r} and fdiv{r} when the | |
7194 | destination register is not st(0). The Intel assembler | |
7195 | doesn't have this brain damage. Read !SYSV386_COMPAT to | |
7196 | figure out what the hardware really does. */ | |
7197 | if (STACK_TOP_P (operands[0])) | |
7198 | p = "{p\t%0, %2|rp\t%2, %0}"; | |
7199 | else | |
7200 | p = "{rp\t%2, %0|p\t%0, %2}"; | |
7201 | #else | |
6b28fd63 | 7202 | if (STACK_TOP_P (operands[0])) |
e3c2afab AM |
7203 | /* As above for fmul/fadd, we can't store to st(0). */ |
7204 | p = "rp\t{%0, %2|%2, %0}"; /* st(1) = st(0) op st(1); pop */ | |
6b28fd63 | 7205 | else |
e3c2afab AM |
7206 | p = "p\t{%2, %0|%0, %2}"; /* st(r1) = st(r1) op st(0); pop */ |
7207 | #endif | |
e075ae69 | 7208 | break; |
6b28fd63 | 7209 | } |
2a2ab3f9 JVA |
7210 | |
7211 | if (find_regno_note (insn, REG_DEAD, REGNO (operands[1]))) | |
6b28fd63 | 7212 | { |
e3c2afab | 7213 | #if SYSV386_COMPAT |
6b28fd63 | 7214 | if (STACK_TOP_P (operands[0])) |
e3c2afab | 7215 | p = "{rp\t%0, %1|p\t%1, %0}"; |
6b28fd63 | 7216 | else |
e3c2afab AM |
7217 | p = "{p\t%1, %0|rp\t%0, %1}"; |
7218 | #else | |
7219 | if (STACK_TOP_P (operands[0])) | |
7220 | p = "p\t{%0, %1|%1, %0}"; /* st(1) = st(1) op st(0); pop */ | |
7221 | else | |
7222 | p = "rp\t{%1, %0|%0, %1}"; /* st(r2) = st(0) op st(r2); pop */ | |
7223 | #endif | |
e075ae69 | 7224 | break; |
6b28fd63 | 7225 | } |
2a2ab3f9 JVA |
7226 | |
7227 | if (STACK_TOP_P (operands[0])) | |
7228 | { | |
7229 | if (STACK_TOP_P (operands[1])) | |
e3c2afab | 7230 | p = "\t{%y2, %0|%0, %y2}"; /* st(0) = st(0) op st(r2) */ |
2a2ab3f9 | 7231 | else |
e3c2afab | 7232 | p = "r\t{%y1, %0|%0, %y1}"; /* st(0) = st(r1) op st(0) */ |
e075ae69 | 7233 | break; |
2a2ab3f9 JVA |
7234 | } |
7235 | else if (STACK_TOP_P (operands[1])) | |
e3c2afab AM |
7236 | { |
7237 | #if SYSV386_COMPAT | |
7238 | p = "{\t%1, %0|r\t%0, %1}"; | |
7239 | #else | |
7240 | p = "r\t{%1, %0|%0, %1}"; /* st(r2) = st(0) op st(r2) */ | |
7241 | #endif | |
7242 | } | |
2a2ab3f9 | 7243 | else |
e3c2afab AM |
7244 | { |
7245 | #if SYSV386_COMPAT | |
7246 | p = "{r\t%2, %0|\t%0, %2}"; | |
7247 | #else | |
7248 | p = "\t{%2, %0|%0, %2}"; /* st(r1) = st(r1) op st(0) */ | |
7249 | #endif | |
7250 | } | |
e075ae69 | 7251 | break; |
2a2ab3f9 JVA |
7252 | |
7253 | default: | |
7254 | abort (); | |
7255 | } | |
e075ae69 RH |
7256 | |
7257 | strcat (buf, p); | |
7258 | return buf; | |
2a2ab3f9 | 7259 | } |
e075ae69 | 7260 | |
a4f31c00 | 7261 | /* Output code to initialize control word copies used by |
7a2e09f4 JH |
7262 | trunc?f?i patterns. NORMAL is set to current control word, while ROUND_DOWN |
7263 | is set to control word rounding downwards. */ | |
7264 | void | |
7265 | emit_i387_cw_initialization (normal, round_down) | |
7266 | rtx normal, round_down; | |
7267 | { | |
7268 | rtx reg = gen_reg_rtx (HImode); | |
7269 | ||
7270 | emit_insn (gen_x86_fnstcw_1 (normal)); | |
7271 | emit_move_insn (reg, normal); | |
7272 | if (!TARGET_PARTIAL_REG_STALL && !optimize_size | |
7273 | && !TARGET_64BIT) | |
7274 | emit_insn (gen_movsi_insv_1 (reg, GEN_INT (0xc))); | |
7275 | else | |
7276 | emit_insn (gen_iorhi3 (reg, reg, GEN_INT (0xc00))); | |
7277 | emit_move_insn (round_down, reg); | |
7278 | } | |
7279 | ||
2a2ab3f9 | 7280 | /* Output code for INSN to convert a float to a signed int. OPERANDS |
46d21d2c | 7281 | are the insn operands. The output may be [HSD]Imode and the input |
e075ae69 | 7282 | operand may be [SDX]Fmode. */ |
2a2ab3f9 | 7283 | |
69ddee61 | 7284 | const char * |
2a2ab3f9 JVA |
7285 | output_fix_trunc (insn, operands) |
7286 | rtx insn; | |
7287 | rtx *operands; | |
7288 | { | |
7289 | int stack_top_dies = find_regno_note (insn, REG_DEAD, FIRST_STACK_REG) != 0; | |
e075ae69 | 7290 | int dimode_p = GET_MODE (operands[0]) == DImode; |
2a2ab3f9 | 7291 | |
e075ae69 RH |
7292 | /* Jump through a hoop or two for DImode, since the hardware has no |
7293 | non-popping instruction. We used to do this a different way, but | |
7294 | that was somewhat fragile and broke with post-reload splitters. */ | |
a05924f9 JH |
7295 | if (dimode_p && !stack_top_dies) |
7296 | output_asm_insn ("fld\t%y1", operands); | |
e075ae69 | 7297 | |
7a2e09f4 | 7298 | if (!STACK_TOP_P (operands[1])) |
10195bd8 JW |
7299 | abort (); |
7300 | ||
e075ae69 | 7301 | if (GET_CODE (operands[0]) != MEM) |
7a2e09f4 | 7302 | abort (); |
e9a25f70 | 7303 | |
7a2e09f4 | 7304 | output_asm_insn ("fldcw\t%3", operands); |
e075ae69 | 7305 | if (stack_top_dies || dimode_p) |
7a2e09f4 | 7306 | output_asm_insn ("fistp%z0\t%0", operands); |
10195bd8 | 7307 | else |
7a2e09f4 | 7308 | output_asm_insn ("fist%z0\t%0", operands); |
e075ae69 | 7309 | output_asm_insn ("fldcw\t%2", operands); |
10195bd8 | 7310 | |
e075ae69 | 7311 | return ""; |
2a2ab3f9 | 7312 | } |
cda749b1 | 7313 | |
e075ae69 RH |
7314 | /* Output code for INSN to compare OPERANDS. EFLAGS_P is 1 when fcomi |
7315 | should be used and 2 when fnstsw should be used. UNORDERED_P is true | |
7316 | when fucom should be used. */ | |
7317 | ||
69ddee61 | 7318 | const char * |
e075ae69 | 7319 | output_fp_compare (insn, operands, eflags_p, unordered_p) |
cda749b1 JW |
7320 | rtx insn; |
7321 | rtx *operands; | |
e075ae69 | 7322 | int eflags_p, unordered_p; |
cda749b1 | 7323 | { |
e075ae69 RH |
7324 | int stack_top_dies; |
7325 | rtx cmp_op0 = operands[0]; | |
7326 | rtx cmp_op1 = operands[1]; | |
0644b628 | 7327 | int is_sse = SSE_REG_P (operands[0]) | SSE_REG_P (operands[1]); |
e075ae69 RH |
7328 | |
7329 | if (eflags_p == 2) | |
7330 | { | |
7331 | cmp_op0 = cmp_op1; | |
7332 | cmp_op1 = operands[2]; | |
7333 | } | |
0644b628 JH |
7334 | if (is_sse) |
7335 | { | |
7336 | if (GET_MODE (operands[0]) == SFmode) | |
7337 | if (unordered_p) | |
7338 | return "ucomiss\t{%1, %0|%0, %1}"; | |
7339 | else | |
7340 | return "comiss\t{%1, %0|%0, %y}"; | |
7341 | else | |
7342 | if (unordered_p) | |
7343 | return "ucomisd\t{%1, %0|%0, %1}"; | |
7344 | else | |
7345 | return "comisd\t{%1, %0|%0, %y}"; | |
7346 | } | |
cda749b1 | 7347 | |
e075ae69 | 7348 | if (! STACK_TOP_P (cmp_op0)) |
cda749b1 JW |
7349 | abort (); |
7350 | ||
e075ae69 | 7351 | stack_top_dies = find_regno_note (insn, REG_DEAD, FIRST_STACK_REG) != 0; |
cda749b1 | 7352 | |
e075ae69 RH |
7353 | if (STACK_REG_P (cmp_op1) |
7354 | && stack_top_dies | |
7355 | && find_regno_note (insn, REG_DEAD, REGNO (cmp_op1)) | |
7356 | && REGNO (cmp_op1) != FIRST_STACK_REG) | |
cda749b1 | 7357 | { |
e075ae69 RH |
7358 | /* If both the top of the 387 stack dies, and the other operand |
7359 | is also a stack register that dies, then this must be a | |
7360 | `fcompp' float compare */ | |
7361 | ||
7362 | if (eflags_p == 1) | |
7363 | { | |
7364 | /* There is no double popping fcomi variant. Fortunately, | |
7365 | eflags is immune from the fstp's cc clobbering. */ | |
7366 | if (unordered_p) | |
7367 | output_asm_insn ("fucomip\t{%y1, %0|%0, %y1}", operands); | |
7368 | else | |
7369 | output_asm_insn ("fcomip\t{%y1, %0|%0, %y1}", operands); | |
7370 | return "fstp\t%y0"; | |
7371 | } | |
7372 | else | |
cda749b1 | 7373 | { |
e075ae69 RH |
7374 | if (eflags_p == 2) |
7375 | { | |
7376 | if (unordered_p) | |
7377 | return "fucompp\n\tfnstsw\t%0"; | |
7378 | else | |
7379 | return "fcompp\n\tfnstsw\t%0"; | |
7380 | } | |
cda749b1 JW |
7381 | else |
7382 | { | |
e075ae69 RH |
7383 | if (unordered_p) |
7384 | return "fucompp"; | |
7385 | else | |
7386 | return "fcompp"; | |
cda749b1 JW |
7387 | } |
7388 | } | |
cda749b1 JW |
7389 | } |
7390 | else | |
7391 | { | |
e075ae69 | 7392 | /* Encoded here as eflags_p | intmode | unordered_p | stack_top_dies. */ |
cda749b1 | 7393 | |
0f290768 | 7394 | static const char * const alt[24] = |
e075ae69 RH |
7395 | { |
7396 | "fcom%z1\t%y1", | |
7397 | "fcomp%z1\t%y1", | |
7398 | "fucom%z1\t%y1", | |
7399 | "fucomp%z1\t%y1", | |
0f290768 | 7400 | |
e075ae69 RH |
7401 | "ficom%z1\t%y1", |
7402 | "ficomp%z1\t%y1", | |
7403 | NULL, | |
7404 | NULL, | |
7405 | ||
7406 | "fcomi\t{%y1, %0|%0, %y1}", | |
7407 | "fcomip\t{%y1, %0|%0, %y1}", | |
7408 | "fucomi\t{%y1, %0|%0, %y1}", | |
7409 | "fucomip\t{%y1, %0|%0, %y1}", | |
7410 | ||
7411 | NULL, | |
7412 | NULL, | |
7413 | NULL, | |
7414 | NULL, | |
7415 | ||
7416 | "fcom%z2\t%y2\n\tfnstsw\t%0", | |
7417 | "fcomp%z2\t%y2\n\tfnstsw\t%0", | |
7418 | "fucom%z2\t%y2\n\tfnstsw\t%0", | |
7419 | "fucomp%z2\t%y2\n\tfnstsw\t%0", | |
0f290768 | 7420 | |
e075ae69 RH |
7421 | "ficom%z2\t%y2\n\tfnstsw\t%0", |
7422 | "ficomp%z2\t%y2\n\tfnstsw\t%0", | |
7423 | NULL, | |
7424 | NULL | |
7425 | }; | |
7426 | ||
7427 | int mask; | |
69ddee61 | 7428 | const char *ret; |
e075ae69 RH |
7429 | |
7430 | mask = eflags_p << 3; | |
7431 | mask |= (GET_MODE_CLASS (GET_MODE (operands[1])) == MODE_INT) << 2; | |
7432 | mask |= unordered_p << 1; | |
7433 | mask |= stack_top_dies; | |
7434 | ||
7435 | if (mask >= 24) | |
7436 | abort (); | |
7437 | ret = alt[mask]; | |
7438 | if (ret == NULL) | |
7439 | abort (); | |
cda749b1 | 7440 | |
e075ae69 | 7441 | return ret; |
cda749b1 JW |
7442 | } |
7443 | } | |
2a2ab3f9 | 7444 | |
f88c65f7 RH |
7445 | void |
7446 | ix86_output_addr_vec_elt (file, value) | |
7447 | FILE *file; | |
7448 | int value; | |
7449 | { | |
7450 | const char *directive = ASM_LONG; | |
7451 | ||
7452 | if (TARGET_64BIT) | |
7453 | { | |
7454 | #ifdef ASM_QUAD | |
7455 | directive = ASM_QUAD; | |
7456 | #else | |
7457 | abort (); | |
7458 | #endif | |
7459 | } | |
7460 | ||
7461 | fprintf (file, "%s%s%d\n", directive, LPREFIX, value); | |
7462 | } | |
7463 | ||
7464 | void | |
7465 | ix86_output_addr_diff_elt (file, value, rel) | |
7466 | FILE *file; | |
7467 | int value, rel; | |
7468 | { | |
7469 | if (TARGET_64BIT) | |
74411039 | 7470 | fprintf (file, "%s%s%d-%s%d\n", |
f88c65f7 RH |
7471 | ASM_LONG, LPREFIX, value, LPREFIX, rel); |
7472 | else if (HAVE_AS_GOTOFF_IN_DATA) | |
7473 | fprintf (file, "%s%s%d@GOTOFF\n", ASM_LONG, LPREFIX, value); | |
b069de3b SS |
7474 | #if TARGET_MACHO |
7475 | else if (TARGET_MACHO) | |
7476 | fprintf (file, "%s%s%d-%s\n", ASM_LONG, LPREFIX, value, | |
7477 | machopic_function_base_name () + 1); | |
7478 | #endif | |
f88c65f7 | 7479 | else |
5fc0e5df KW |
7480 | asm_fprintf (file, "%s%U%s+[.-%s%d]\n", |
7481 | ASM_LONG, GOT_SYMBOL_NAME, LPREFIX, value); | |
f88c65f7 | 7482 | } |
32b5b1aa | 7483 | \f |
a8bac9ab RH |
7484 | /* Generate either "mov $0, reg" or "xor reg, reg", as appropriate |
7485 | for the target. */ | |
7486 | ||
7487 | void | |
7488 | ix86_expand_clear (dest) | |
7489 | rtx dest; | |
7490 | { | |
7491 | rtx tmp; | |
7492 | ||
7493 | /* We play register width games, which are only valid after reload. */ | |
7494 | if (!reload_completed) | |
7495 | abort (); | |
7496 | ||
7497 | /* Avoid HImode and its attendant prefix byte. */ | |
7498 | if (GET_MODE_SIZE (GET_MODE (dest)) < 4) | |
7499 | dest = gen_rtx_REG (SImode, REGNO (dest)); | |
7500 | ||
7501 | tmp = gen_rtx_SET (VOIDmode, dest, const0_rtx); | |
7502 | ||
7503 | /* This predicate should match that for movsi_xor and movdi_xor_rex64. */ | |
7504 | if (reload_completed && (!TARGET_USE_MOV0 || optimize_size)) | |
7505 | { | |
7506 | rtx clob = gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (CCmode, 17)); | |
7507 | tmp = gen_rtx_PARALLEL (VOIDmode, gen_rtvec (2, tmp, clob)); | |
7508 | } | |
7509 | ||
7510 | emit_insn (tmp); | |
7511 | } | |
7512 | ||
f996902d RH |
7513 | /* X is an unchanging MEM. If it is a constant pool reference, return |
7514 | the constant pool rtx, else NULL. */ | |
7515 | ||
7516 | static rtx | |
7517 | maybe_get_pool_constant (x) | |
7518 | rtx x; | |
7519 | { | |
7520 | x = XEXP (x, 0); | |
7521 | ||
7522 | if (flag_pic) | |
7523 | { | |
7524 | if (GET_CODE (x) != PLUS) | |
7525 | return NULL_RTX; | |
7526 | if (XEXP (x, 0) != pic_offset_table_rtx) | |
7527 | return NULL_RTX; | |
7528 | x = XEXP (x, 1); | |
7529 | if (GET_CODE (x) != CONST) | |
7530 | return NULL_RTX; | |
7531 | x = XEXP (x, 0); | |
7532 | if (GET_CODE (x) != UNSPEC) | |
7533 | return NULL_RTX; | |
7534 | if (XINT (x, 1) != UNSPEC_GOTOFF) | |
7535 | return NULL_RTX; | |
7536 | x = XVECEXP (x, 0, 0); | |
7537 | } | |
7538 | ||
7539 | if (GET_CODE (x) == SYMBOL_REF && CONSTANT_POOL_ADDRESS_P (x)) | |
7540 | return get_pool_constant (x); | |
7541 | ||
7542 | return NULL_RTX; | |
7543 | } | |
7544 | ||
79325812 | 7545 | void |
e075ae69 RH |
7546 | ix86_expand_move (mode, operands) |
7547 | enum machine_mode mode; | |
7548 | rtx operands[]; | |
32b5b1aa | 7549 | { |
e075ae69 | 7550 | int strict = (reload_in_progress || reload_completed); |
f996902d RH |
7551 | rtx insn, op0, op1, tmp; |
7552 | ||
7553 | op0 = operands[0]; | |
7554 | op1 = operands[1]; | |
7555 | ||
7556 | /* ??? We have a slight problem. We need to say that tls symbols are | |
7557 | not legitimate constants so that reload does not helpfully reload | |
7558 | these constants from a REG_EQUIV, which we cannot handle. (Recall | |
7559 | that general- and local-dynamic address resolution requires a | |
7560 | function call.) | |
e9a25f70 | 7561 | |
f996902d RH |
7562 | However, if we say that tls symbols are not legitimate constants, |
7563 | then emit_move_insn helpfully drop them into the constant pool. | |
7564 | ||
7565 | It is far easier to work around emit_move_insn than reload. Recognize | |
7566 | the MEM that we would have created and extract the symbol_ref. */ | |
7567 | ||
7568 | if (mode == Pmode | |
7569 | && GET_CODE (op1) == MEM | |
7570 | && RTX_UNCHANGING_P (op1)) | |
32b5b1aa | 7571 | { |
f996902d RH |
7572 | tmp = maybe_get_pool_constant (op1); |
7573 | /* Note that we only care about symbolic constants here, which | |
7574 | unlike CONST_INT will always have a proper mode. */ | |
7575 | if (tmp && GET_MODE (tmp) == Pmode) | |
7576 | op1 = tmp; | |
7577 | } | |
e9a25f70 | 7578 | |
f996902d RH |
7579 | if (tls_symbolic_operand (op1, Pmode)) |
7580 | { | |
7581 | op1 = legitimize_address (op1, op1, VOIDmode); | |
7582 | if (GET_CODE (op0) == MEM) | |
7583 | { | |
7584 | tmp = gen_reg_rtx (mode); | |
7585 | emit_insn (gen_rtx_SET (VOIDmode, tmp, op1)); | |
7586 | op1 = tmp; | |
7587 | } | |
7588 | } | |
7589 | else if (flag_pic && mode == Pmode && symbolic_operand (op1, Pmode)) | |
7590 | { | |
b069de3b SS |
7591 | #if TARGET_MACHO |
7592 | if (MACHOPIC_PURE) | |
7593 | { | |
7594 | rtx temp = ((reload_in_progress | |
7595 | || ((op0 && GET_CODE (op0) == REG) | |
7596 | && mode == Pmode)) | |
7597 | ? op0 : gen_reg_rtx (Pmode)); | |
7598 | op1 = machopic_indirect_data_reference (op1, temp); | |
7599 | op1 = machopic_legitimize_pic_address (op1, mode, | |
7600 | temp == op1 ? 0 : temp); | |
7601 | } | |
7602 | else | |
7603 | { | |
7604 | if (MACHOPIC_INDIRECT) | |
7605 | op1 = machopic_indirect_data_reference (op1, 0); | |
7606 | } | |
7607 | if (op0 != op1) | |
7608 | { | |
7609 | insn = gen_rtx_SET (VOIDmode, op0, op1); | |
7610 | emit_insn (insn); | |
7611 | } | |
7612 | return; | |
7613 | #endif /* TARGET_MACHO */ | |
f996902d RH |
7614 | if (GET_CODE (op0) == MEM) |
7615 | op1 = force_reg (Pmode, op1); | |
e075ae69 | 7616 | else |
32b5b1aa | 7617 | { |
f996902d | 7618 | rtx temp = op0; |
e075ae69 RH |
7619 | if (GET_CODE (temp) != REG) |
7620 | temp = gen_reg_rtx (Pmode); | |
f996902d RH |
7621 | temp = legitimize_pic_address (op1, temp); |
7622 | if (temp == op0) | |
e075ae69 | 7623 | return; |
f996902d | 7624 | op1 = temp; |
32b5b1aa | 7625 | } |
e075ae69 RH |
7626 | } |
7627 | else | |
7628 | { | |
f996902d | 7629 | if (GET_CODE (op0) == MEM |
44cf5b6a | 7630 | && (PUSH_ROUNDING (GET_MODE_SIZE (mode)) != GET_MODE_SIZE (mode) |
f996902d RH |
7631 | || !push_operand (op0, mode)) |
7632 | && GET_CODE (op1) == MEM) | |
7633 | op1 = force_reg (mode, op1); | |
e9a25f70 | 7634 | |
f996902d RH |
7635 | if (push_operand (op0, mode) |
7636 | && ! general_no_elim_operand (op1, mode)) | |
7637 | op1 = copy_to_mode_reg (mode, op1); | |
2c5a510c | 7638 | |
44cf5b6a JH |
7639 | /* Force large constants in 64bit compilation into register |
7640 | to get them CSEed. */ | |
7641 | if (TARGET_64BIT && mode == DImode | |
f996902d RH |
7642 | && immediate_operand (op1, mode) |
7643 | && !x86_64_zero_extended_value (op1) | |
7644 | && !register_operand (op0, mode) | |
44cf5b6a | 7645 | && optimize && !reload_completed && !reload_in_progress) |
f996902d | 7646 | op1 = copy_to_mode_reg (mode, op1); |
44cf5b6a | 7647 | |
e075ae69 | 7648 | if (FLOAT_MODE_P (mode)) |
32b5b1aa | 7649 | { |
d7a29404 JH |
7650 | /* If we are loading a floating point constant to a register, |
7651 | force the value to memory now, since we'll get better code | |
7652 | out the back end. */ | |
e075ae69 RH |
7653 | |
7654 | if (strict) | |
7655 | ; | |
f996902d RH |
7656 | else if (GET_CODE (op1) == CONST_DOUBLE |
7657 | && register_operand (op0, mode)) | |
7658 | op1 = validize_mem (force_const_mem (mode, op1)); | |
32b5b1aa | 7659 | } |
32b5b1aa | 7660 | } |
e9a25f70 | 7661 | |
f996902d | 7662 | insn = gen_rtx_SET (VOIDmode, op0, op1); |
e9a25f70 | 7663 | |
e075ae69 RH |
7664 | emit_insn (insn); |
7665 | } | |
e9a25f70 | 7666 | |
e37af218 RH |
7667 | void |
7668 | ix86_expand_vector_move (mode, operands) | |
7669 | enum machine_mode mode; | |
7670 | rtx operands[]; | |
7671 | { | |
7672 | /* Force constants other than zero into memory. We do not know how | |
7673 | the instructions used to build constants modify the upper 64 bits | |
7674 | of the register, once we have that information we may be able | |
7675 | to handle some of them more efficiently. */ | |
7676 | if ((reload_in_progress | reload_completed) == 0 | |
7677 | && register_operand (operands[0], mode) | |
7678 | && CONSTANT_P (operands[1])) | |
7679 | { | |
7680 | rtx addr = gen_reg_rtx (Pmode); | |
7681 | emit_move_insn (addr, XEXP (force_const_mem (mode, operands[1]), 0)); | |
7682 | operands[1] = gen_rtx_MEM (mode, addr); | |
7683 | } | |
7684 | ||
7685 | /* Make operand1 a register if it isn't already. */ | |
7686 | if ((reload_in_progress | reload_completed) == 0 | |
7687 | && !register_operand (operands[0], mode) | |
b105d6da | 7688 | && !register_operand (operands[1], mode)) |
e37af218 | 7689 | { |
59bef189 | 7690 | rtx temp = force_reg (GET_MODE (operands[1]), operands[1]); |
e37af218 RH |
7691 | emit_move_insn (operands[0], temp); |
7692 | return; | |
7693 | } | |
7694 | ||
7695 | emit_insn (gen_rtx_SET (VOIDmode, operands[0], operands[1])); | |
fce5a9f2 | 7696 | } |
e37af218 | 7697 | |
e075ae69 RH |
7698 | /* Attempt to expand a binary operator. Make the expansion closer to the |
7699 | actual machine, then just general_operand, which will allow 3 separate | |
9d81fc27 | 7700 | memory references (one output, two input) in a single insn. */ |
e9a25f70 | 7701 | |
e075ae69 RH |
7702 | void |
7703 | ix86_expand_binary_operator (code, mode, operands) | |
7704 | enum rtx_code code; | |
7705 | enum machine_mode mode; | |
7706 | rtx operands[]; | |
7707 | { | |
7708 | int matching_memory; | |
7709 | rtx src1, src2, dst, op, clob; | |
7710 | ||
7711 | dst = operands[0]; | |
7712 | src1 = operands[1]; | |
7713 | src2 = operands[2]; | |
7714 | ||
7715 | /* Recognize <var1> = <value> <op> <var1> for commutative operators */ | |
7716 | if (GET_RTX_CLASS (code) == 'c' | |
7717 | && (rtx_equal_p (dst, src2) | |
7718 | || immediate_operand (src1, mode))) | |
7719 | { | |
7720 | rtx temp = src1; | |
7721 | src1 = src2; | |
7722 | src2 = temp; | |
32b5b1aa | 7723 | } |
e9a25f70 | 7724 | |
e075ae69 RH |
7725 | /* If the destination is memory, and we do not have matching source |
7726 | operands, do things in registers. */ | |
7727 | matching_memory = 0; | |
7728 | if (GET_CODE (dst) == MEM) | |
32b5b1aa | 7729 | { |
e075ae69 RH |
7730 | if (rtx_equal_p (dst, src1)) |
7731 | matching_memory = 1; | |
7732 | else if (GET_RTX_CLASS (code) == 'c' | |
7733 | && rtx_equal_p (dst, src2)) | |
7734 | matching_memory = 2; | |
7735 | else | |
7736 | dst = gen_reg_rtx (mode); | |
7737 | } | |
0f290768 | 7738 | |
e075ae69 RH |
7739 | /* Both source operands cannot be in memory. */ |
7740 | if (GET_CODE (src1) == MEM && GET_CODE (src2) == MEM) | |
7741 | { | |
7742 | if (matching_memory != 2) | |
7743 | src2 = force_reg (mode, src2); | |
7744 | else | |
7745 | src1 = force_reg (mode, src1); | |
32b5b1aa | 7746 | } |
e9a25f70 | 7747 | |
06a964de JH |
7748 | /* If the operation is not commutable, source 1 cannot be a constant |
7749 | or non-matching memory. */ | |
0f290768 | 7750 | if ((CONSTANT_P (src1) |
06a964de JH |
7751 | || (!matching_memory && GET_CODE (src1) == MEM)) |
7752 | && GET_RTX_CLASS (code) != 'c') | |
e075ae69 | 7753 | src1 = force_reg (mode, src1); |
0f290768 | 7754 | |
e075ae69 | 7755 | /* If optimizing, copy to regs to improve CSE */ |
fe577e58 | 7756 | if (optimize && ! no_new_pseudos) |
32b5b1aa | 7757 | { |
e075ae69 RH |
7758 | if (GET_CODE (dst) == MEM) |
7759 | dst = gen_reg_rtx (mode); | |
7760 | if (GET_CODE (src1) == MEM) | |
7761 | src1 = force_reg (mode, src1); | |
7762 | if (GET_CODE (src2) == MEM) | |
7763 | src2 = force_reg (mode, src2); | |
32b5b1aa | 7764 | } |
e9a25f70 | 7765 | |
e075ae69 RH |
7766 | /* Emit the instruction. */ |
7767 | ||
7768 | op = gen_rtx_SET (VOIDmode, dst, gen_rtx_fmt_ee (code, mode, src1, src2)); | |
7769 | if (reload_in_progress) | |
7770 | { | |
7771 | /* Reload doesn't know about the flags register, and doesn't know that | |
7772 | it doesn't want to clobber it. We can only do this with PLUS. */ | |
7773 | if (code != PLUS) | |
7774 | abort (); | |
7775 | emit_insn (op); | |
7776 | } | |
7777 | else | |
32b5b1aa | 7778 | { |
e075ae69 RH |
7779 | clob = gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (CCmode, FLAGS_REG)); |
7780 | emit_insn (gen_rtx_PARALLEL (VOIDmode, gen_rtvec (2, op, clob))); | |
32b5b1aa | 7781 | } |
e9a25f70 | 7782 | |
e075ae69 RH |
7783 | /* Fix up the destination if needed. */ |
7784 | if (dst != operands[0]) | |
7785 | emit_move_insn (operands[0], dst); | |
7786 | } | |
7787 | ||
7788 | /* Return TRUE or FALSE depending on whether the binary operator meets the | |
7789 | appropriate constraints. */ | |
7790 | ||
7791 | int | |
7792 | ix86_binary_operator_ok (code, mode, operands) | |
7793 | enum rtx_code code; | |
7794 | enum machine_mode mode ATTRIBUTE_UNUSED; | |
7795 | rtx operands[3]; | |
7796 | { | |
7797 | /* Both source operands cannot be in memory. */ | |
7798 | if (GET_CODE (operands[1]) == MEM && GET_CODE (operands[2]) == MEM) | |
7799 | return 0; | |
7800 | /* If the operation is not commutable, source 1 cannot be a constant. */ | |
7801 | if (CONSTANT_P (operands[1]) && GET_RTX_CLASS (code) != 'c') | |
7802 | return 0; | |
7803 | /* If the destination is memory, we must have a matching source operand. */ | |
7804 | if (GET_CODE (operands[0]) == MEM | |
7805 | && ! (rtx_equal_p (operands[0], operands[1]) | |
7806 | || (GET_RTX_CLASS (code) == 'c' | |
7807 | && rtx_equal_p (operands[0], operands[2])))) | |
7808 | return 0; | |
06a964de | 7809 | /* If the operation is not commutable and the source 1 is memory, we must |
d6a7951f | 7810 | have a matching destination. */ |
06a964de JH |
7811 | if (GET_CODE (operands[1]) == MEM |
7812 | && GET_RTX_CLASS (code) != 'c' | |
7813 | && ! rtx_equal_p (operands[0], operands[1])) | |
7814 | return 0; | |
e075ae69 RH |
7815 | return 1; |
7816 | } | |
7817 | ||
7818 | /* Attempt to expand a unary operator. Make the expansion closer to the | |
7819 | actual machine, then just general_operand, which will allow 2 separate | |
9d81fc27 | 7820 | memory references (one output, one input) in a single insn. */ |
e075ae69 | 7821 | |
9d81fc27 | 7822 | void |
e075ae69 RH |
7823 | ix86_expand_unary_operator (code, mode, operands) |
7824 | enum rtx_code code; | |
7825 | enum machine_mode mode; | |
7826 | rtx operands[]; | |
7827 | { | |
06a964de JH |
7828 | int matching_memory; |
7829 | rtx src, dst, op, clob; | |
7830 | ||
7831 | dst = operands[0]; | |
7832 | src = operands[1]; | |
e075ae69 | 7833 | |
06a964de JH |
7834 | /* If the destination is memory, and we do not have matching source |
7835 | operands, do things in registers. */ | |
7836 | matching_memory = 0; | |
7837 | if (GET_CODE (dst) == MEM) | |
32b5b1aa | 7838 | { |
06a964de JH |
7839 | if (rtx_equal_p (dst, src)) |
7840 | matching_memory = 1; | |
e075ae69 | 7841 | else |
06a964de | 7842 | dst = gen_reg_rtx (mode); |
32b5b1aa | 7843 | } |
e9a25f70 | 7844 | |
06a964de JH |
7845 | /* When source operand is memory, destination must match. */ |
7846 | if (!matching_memory && GET_CODE (src) == MEM) | |
7847 | src = force_reg (mode, src); | |
0f290768 | 7848 | |
06a964de | 7849 | /* If optimizing, copy to regs to improve CSE */ |
fe577e58 | 7850 | if (optimize && ! no_new_pseudos) |
06a964de JH |
7851 | { |
7852 | if (GET_CODE (dst) == MEM) | |
7853 | dst = gen_reg_rtx (mode); | |
7854 | if (GET_CODE (src) == MEM) | |
7855 | src = force_reg (mode, src); | |
7856 | } | |
7857 | ||
7858 | /* Emit the instruction. */ | |
7859 | ||
7860 | op = gen_rtx_SET (VOIDmode, dst, gen_rtx_fmt_e (code, mode, src)); | |
7861 | if (reload_in_progress || code == NOT) | |
7862 | { | |
7863 | /* Reload doesn't know about the flags register, and doesn't know that | |
7864 | it doesn't want to clobber it. */ | |
7865 | if (code != NOT) | |
7866 | abort (); | |
7867 | emit_insn (op); | |
7868 | } | |
7869 | else | |
7870 | { | |
7871 | clob = gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (CCmode, FLAGS_REG)); | |
7872 | emit_insn (gen_rtx_PARALLEL (VOIDmode, gen_rtvec (2, op, clob))); | |
7873 | } | |
7874 | ||
7875 | /* Fix up the destination if needed. */ | |
7876 | if (dst != operands[0]) | |
7877 | emit_move_insn (operands[0], dst); | |
e075ae69 RH |
7878 | } |
7879 | ||
7880 | /* Return TRUE or FALSE depending on whether the unary operator meets the | |
7881 | appropriate constraints. */ | |
7882 | ||
7883 | int | |
7884 | ix86_unary_operator_ok (code, mode, operands) | |
7885 | enum rtx_code code ATTRIBUTE_UNUSED; | |
7886 | enum machine_mode mode ATTRIBUTE_UNUSED; | |
7887 | rtx operands[2] ATTRIBUTE_UNUSED; | |
7888 | { | |
06a964de JH |
7889 | /* If one of operands is memory, source and destination must match. */ |
7890 | if ((GET_CODE (operands[0]) == MEM | |
7891 | || GET_CODE (operands[1]) == MEM) | |
7892 | && ! rtx_equal_p (operands[0], operands[1])) | |
7893 | return FALSE; | |
e075ae69 RH |
7894 | return TRUE; |
7895 | } | |
7896 | ||
16189740 RH |
7897 | /* Return TRUE or FALSE depending on whether the first SET in INSN |
7898 | has source and destination with matching CC modes, and that the | |
7899 | CC mode is at least as constrained as REQ_MODE. */ | |
7900 | ||
7901 | int | |
7902 | ix86_match_ccmode (insn, req_mode) | |
7903 | rtx insn; | |
7904 | enum machine_mode req_mode; | |
7905 | { | |
7906 | rtx set; | |
7907 | enum machine_mode set_mode; | |
7908 | ||
7909 | set = PATTERN (insn); | |
7910 | if (GET_CODE (set) == PARALLEL) | |
7911 | set = XVECEXP (set, 0, 0); | |
7912 | if (GET_CODE (set) != SET) | |
7913 | abort (); | |
9076b9c1 JH |
7914 | if (GET_CODE (SET_SRC (set)) != COMPARE) |
7915 | abort (); | |
16189740 RH |
7916 | |
7917 | set_mode = GET_MODE (SET_DEST (set)); | |
7918 | switch (set_mode) | |
7919 | { | |
9076b9c1 JH |
7920 | case CCNOmode: |
7921 | if (req_mode != CCNOmode | |
7922 | && (req_mode != CCmode | |
7923 | || XEXP (SET_SRC (set), 1) != const0_rtx)) | |
7924 | return 0; | |
7925 | break; | |
16189740 | 7926 | case CCmode: |
9076b9c1 | 7927 | if (req_mode == CCGCmode) |
16189740 RH |
7928 | return 0; |
7929 | /* FALLTHRU */ | |
9076b9c1 JH |
7930 | case CCGCmode: |
7931 | if (req_mode == CCGOCmode || req_mode == CCNOmode) | |
7932 | return 0; | |
7933 | /* FALLTHRU */ | |
7934 | case CCGOCmode: | |
16189740 RH |
7935 | if (req_mode == CCZmode) |
7936 | return 0; | |
7937 | /* FALLTHRU */ | |
7938 | case CCZmode: | |
7939 | break; | |
7940 | ||
7941 | default: | |
7942 | abort (); | |
7943 | } | |
7944 | ||
7945 | return (GET_MODE (SET_SRC (set)) == set_mode); | |
7946 | } | |
7947 | ||
e075ae69 RH |
7948 | /* Generate insn patterns to do an integer compare of OPERANDS. */ |
7949 | ||
7950 | static rtx | |
7951 | ix86_expand_int_compare (code, op0, op1) | |
7952 | enum rtx_code code; | |
7953 | rtx op0, op1; | |
7954 | { | |
7955 | enum machine_mode cmpmode; | |
7956 | rtx tmp, flags; | |
7957 | ||
7958 | cmpmode = SELECT_CC_MODE (code, op0, op1); | |
7959 | flags = gen_rtx_REG (cmpmode, FLAGS_REG); | |
7960 | ||
7961 | /* This is very simple, but making the interface the same as in the | |
7962 | FP case makes the rest of the code easier. */ | |
7963 | tmp = gen_rtx_COMPARE (cmpmode, op0, op1); | |
7964 | emit_insn (gen_rtx_SET (VOIDmode, flags, tmp)); | |
7965 | ||
7966 | /* Return the test that should be put into the flags user, i.e. | |
7967 | the bcc, scc, or cmov instruction. */ | |
7968 | return gen_rtx_fmt_ee (code, VOIDmode, flags, const0_rtx); | |
7969 | } | |
7970 | ||
3a3677ff RH |
7971 | /* Figure out whether to use ordered or unordered fp comparisons. |
7972 | Return the appropriate mode to use. */ | |
e075ae69 | 7973 | |
b1cdafbb | 7974 | enum machine_mode |
3a3677ff | 7975 | ix86_fp_compare_mode (code) |
8752c357 | 7976 | enum rtx_code code ATTRIBUTE_UNUSED; |
e075ae69 | 7977 | { |
9e7adcb3 JH |
7978 | /* ??? In order to make all comparisons reversible, we do all comparisons |
7979 | non-trapping when compiling for IEEE. Once gcc is able to distinguish | |
7980 | all forms trapping and nontrapping comparisons, we can make inequality | |
7981 | comparisons trapping again, since it results in better code when using | |
7982 | FCOM based compares. */ | |
7983 | return TARGET_IEEE_FP ? CCFPUmode : CCFPmode; | |
3a3677ff RH |
7984 | } |
7985 | ||
9076b9c1 JH |
7986 | enum machine_mode |
7987 | ix86_cc_mode (code, op0, op1) | |
7988 | enum rtx_code code; | |
7989 | rtx op0, op1; | |
7990 | { | |
7991 | if (GET_MODE_CLASS (GET_MODE (op0)) == MODE_FLOAT) | |
7992 | return ix86_fp_compare_mode (code); | |
7993 | switch (code) | |
7994 | { | |
7995 | /* Only zero flag is needed. */ | |
7996 | case EQ: /* ZF=0 */ | |
7997 | case NE: /* ZF!=0 */ | |
7998 | return CCZmode; | |
7999 | /* Codes needing carry flag. */ | |
265dab10 JH |
8000 | case GEU: /* CF=0 */ |
8001 | case GTU: /* CF=0 & ZF=0 */ | |
7e08e190 JH |
8002 | case LTU: /* CF=1 */ |
8003 | case LEU: /* CF=1 | ZF=1 */ | |
265dab10 | 8004 | return CCmode; |
9076b9c1 JH |
8005 | /* Codes possibly doable only with sign flag when |
8006 | comparing against zero. */ | |
8007 | case GE: /* SF=OF or SF=0 */ | |
7e08e190 | 8008 | case LT: /* SF<>OF or SF=1 */ |
9076b9c1 JH |
8009 | if (op1 == const0_rtx) |
8010 | return CCGOCmode; | |
8011 | else | |
8012 | /* For other cases Carry flag is not required. */ | |
8013 | return CCGCmode; | |
8014 | /* Codes doable only with sign flag when comparing | |
8015 | against zero, but we miss jump instruction for it | |
8016 | so we need to use relational tests agains overflow | |
8017 | that thus needs to be zero. */ | |
8018 | case GT: /* ZF=0 & SF=OF */ | |
8019 | case LE: /* ZF=1 | SF<>OF */ | |
8020 | if (op1 == const0_rtx) | |
8021 | return CCNOmode; | |
8022 | else | |
8023 | return CCGCmode; | |
7fcd7218 JH |
8024 | /* strcmp pattern do (use flags) and combine may ask us for proper |
8025 | mode. */ | |
8026 | case USE: | |
8027 | return CCmode; | |
9076b9c1 | 8028 | default: |
0f290768 | 8029 | abort (); |
9076b9c1 JH |
8030 | } |
8031 | } | |
8032 | ||
3a3677ff RH |
8033 | /* Return true if we should use an FCOMI instruction for this fp comparison. */ |
8034 | ||
a940d8bd | 8035 | int |
3a3677ff | 8036 | ix86_use_fcomi_compare (code) |
9e7adcb3 | 8037 | enum rtx_code code ATTRIBUTE_UNUSED; |
3a3677ff | 8038 | { |
9e7adcb3 JH |
8039 | enum rtx_code swapped_code = swap_condition (code); |
8040 | return ((ix86_fp_comparison_cost (code) == ix86_fp_comparison_fcomi_cost (code)) | |
8041 | || (ix86_fp_comparison_cost (swapped_code) | |
8042 | == ix86_fp_comparison_fcomi_cost (swapped_code))); | |
3a3677ff RH |
8043 | } |
8044 | ||
0f290768 | 8045 | /* Swap, force into registers, or otherwise massage the two operands |
3a3677ff RH |
8046 | to a fp comparison. The operands are updated in place; the new |
8047 | comparsion code is returned. */ | |
8048 | ||
8049 | static enum rtx_code | |
8050 | ix86_prepare_fp_compare_args (code, pop0, pop1) | |
8051 | enum rtx_code code; | |
8052 | rtx *pop0, *pop1; | |
8053 | { | |
8054 | enum machine_mode fpcmp_mode = ix86_fp_compare_mode (code); | |
8055 | rtx op0 = *pop0, op1 = *pop1; | |
8056 | enum machine_mode op_mode = GET_MODE (op0); | |
0644b628 | 8057 | int is_sse = SSE_REG_P (op0) | SSE_REG_P (op1); |
3a3677ff | 8058 | |
e075ae69 | 8059 | /* All of the unordered compare instructions only work on registers. |
3a3677ff RH |
8060 | The same is true of the XFmode compare instructions. The same is |
8061 | true of the fcomi compare instructions. */ | |
8062 | ||
0644b628 JH |
8063 | if (!is_sse |
8064 | && (fpcmp_mode == CCFPUmode | |
8065 | || op_mode == XFmode | |
8066 | || op_mode == TFmode | |
8067 | || ix86_use_fcomi_compare (code))) | |
e075ae69 | 8068 | { |
3a3677ff RH |
8069 | op0 = force_reg (op_mode, op0); |
8070 | op1 = force_reg (op_mode, op1); | |
e075ae69 RH |
8071 | } |
8072 | else | |
8073 | { | |
8074 | /* %%% We only allow op1 in memory; op0 must be st(0). So swap | |
8075 | things around if they appear profitable, otherwise force op0 | |
8076 | into a register. */ | |
8077 | ||
8078 | if (standard_80387_constant_p (op0) == 0 | |
8079 | || (GET_CODE (op0) == MEM | |
8080 | && ! (standard_80387_constant_p (op1) == 0 | |
8081 | || GET_CODE (op1) == MEM))) | |
32b5b1aa | 8082 | { |
e075ae69 RH |
8083 | rtx tmp; |
8084 | tmp = op0, op0 = op1, op1 = tmp; | |
8085 | code = swap_condition (code); | |
8086 | } | |
8087 | ||
8088 | if (GET_CODE (op0) != REG) | |
3a3677ff | 8089 | op0 = force_reg (op_mode, op0); |
e075ae69 RH |
8090 | |
8091 | if (CONSTANT_P (op1)) | |
8092 | { | |
8093 | if (standard_80387_constant_p (op1)) | |
3a3677ff | 8094 | op1 = force_reg (op_mode, op1); |
e075ae69 | 8095 | else |
3a3677ff | 8096 | op1 = validize_mem (force_const_mem (op_mode, op1)); |
32b5b1aa SC |
8097 | } |
8098 | } | |
e9a25f70 | 8099 | |
9e7adcb3 JH |
8100 | /* Try to rearrange the comparison to make it cheaper. */ |
8101 | if (ix86_fp_comparison_cost (code) | |
8102 | > ix86_fp_comparison_cost (swap_condition (code)) | |
558740bf | 8103 | && (GET_CODE (op1) == REG || !no_new_pseudos)) |
9e7adcb3 JH |
8104 | { |
8105 | rtx tmp; | |
8106 | tmp = op0, op0 = op1, op1 = tmp; | |
8107 | code = swap_condition (code); | |
8108 | if (GET_CODE (op0) != REG) | |
8109 | op0 = force_reg (op_mode, op0); | |
8110 | } | |
8111 | ||
3a3677ff RH |
8112 | *pop0 = op0; |
8113 | *pop1 = op1; | |
8114 | return code; | |
8115 | } | |
8116 | ||
c0c102a9 JH |
8117 | /* Convert comparison codes we use to represent FP comparison to integer |
8118 | code that will result in proper branch. Return UNKNOWN if no such code | |
8119 | is available. */ | |
8120 | static enum rtx_code | |
8121 | ix86_fp_compare_code_to_integer (code) | |
8122 | enum rtx_code code; | |
8123 | { | |
8124 | switch (code) | |
8125 | { | |
8126 | case GT: | |
8127 | return GTU; | |
8128 | case GE: | |
8129 | return GEU; | |
8130 | case ORDERED: | |
8131 | case UNORDERED: | |
8132 | return code; | |
8133 | break; | |
8134 | case UNEQ: | |
8135 | return EQ; | |
8136 | break; | |
8137 | case UNLT: | |
8138 | return LTU; | |
8139 | break; | |
8140 | case UNLE: | |
8141 | return LEU; | |
8142 | break; | |
8143 | case LTGT: | |
8144 | return NE; | |
8145 | break; | |
8146 | default: | |
8147 | return UNKNOWN; | |
8148 | } | |
8149 | } | |
8150 | ||
8151 | /* Split comparison code CODE into comparisons we can do using branch | |
8152 | instructions. BYPASS_CODE is comparison code for branch that will | |
8153 | branch around FIRST_CODE and SECOND_CODE. If some of branches | |
8154 | is not required, set value to NIL. | |
8155 | We never require more than two branches. */ | |
8156 | static void | |
8157 | ix86_fp_comparison_codes (code, bypass_code, first_code, second_code) | |
8158 | enum rtx_code code, *bypass_code, *first_code, *second_code; | |
8159 | { | |
8160 | *first_code = code; | |
8161 | *bypass_code = NIL; | |
8162 | *second_code = NIL; | |
8163 | ||
8164 | /* The fcomi comparison sets flags as follows: | |
8165 | ||
8166 | cmp ZF PF CF | |
8167 | > 0 0 0 | |
8168 | < 0 0 1 | |
8169 | = 1 0 0 | |
8170 | un 1 1 1 */ | |
8171 | ||
8172 | switch (code) | |
8173 | { | |
8174 | case GT: /* GTU - CF=0 & ZF=0 */ | |
8175 | case GE: /* GEU - CF=0 */ | |
8176 | case ORDERED: /* PF=0 */ | |
8177 | case UNORDERED: /* PF=1 */ | |
8178 | case UNEQ: /* EQ - ZF=1 */ | |
8179 | case UNLT: /* LTU - CF=1 */ | |
8180 | case UNLE: /* LEU - CF=1 | ZF=1 */ | |
8181 | case LTGT: /* EQ - ZF=0 */ | |
8182 | break; | |
8183 | case LT: /* LTU - CF=1 - fails on unordered */ | |
8184 | *first_code = UNLT; | |
8185 | *bypass_code = UNORDERED; | |
8186 | break; | |
8187 | case LE: /* LEU - CF=1 | ZF=1 - fails on unordered */ | |
8188 | *first_code = UNLE; | |
8189 | *bypass_code = UNORDERED; | |
8190 | break; | |
8191 | case EQ: /* EQ - ZF=1 - fails on unordered */ | |
8192 | *first_code = UNEQ; | |
8193 | *bypass_code = UNORDERED; | |
8194 | break; | |
8195 | case NE: /* NE - ZF=0 - fails on unordered */ | |
8196 | *first_code = LTGT; | |
8197 | *second_code = UNORDERED; | |
8198 | break; | |
8199 | case UNGE: /* GEU - CF=0 - fails on unordered */ | |
8200 | *first_code = GE; | |
8201 | *second_code = UNORDERED; | |
8202 | break; | |
8203 | case UNGT: /* GTU - CF=0 & ZF=0 - fails on unordered */ | |
8204 | *first_code = GT; | |
8205 | *second_code = UNORDERED; | |
8206 | break; | |
8207 | default: | |
8208 | abort (); | |
8209 | } | |
8210 | if (!TARGET_IEEE_FP) | |
8211 | { | |
8212 | *second_code = NIL; | |
8213 | *bypass_code = NIL; | |
8214 | } | |
8215 | } | |
8216 | ||
9e7adcb3 JH |
8217 | /* Return cost of comparison done fcom + arithmetics operations on AX. |
8218 | All following functions do use number of instructions as an cost metrics. | |
8219 | In future this should be tweaked to compute bytes for optimize_size and | |
8220 | take into account performance of various instructions on various CPUs. */ | |
8221 | static int | |
8222 | ix86_fp_comparison_arithmetics_cost (code) | |
8223 | enum rtx_code code; | |
8224 | { | |
8225 | if (!TARGET_IEEE_FP) | |
8226 | return 4; | |
8227 | /* The cost of code output by ix86_expand_fp_compare. */ | |
8228 | switch (code) | |
8229 | { | |
8230 | case UNLE: | |
8231 | case UNLT: | |
8232 | case LTGT: | |
8233 | case GT: | |
8234 | case GE: | |
8235 | case UNORDERED: | |
8236 | case ORDERED: | |
8237 | case UNEQ: | |
8238 | return 4; | |
8239 | break; | |
8240 | case LT: | |
8241 | case NE: | |
8242 | case EQ: | |
8243 | case UNGE: | |
8244 | return 5; | |
8245 | break; | |
8246 | case LE: | |
8247 | case UNGT: | |
8248 | return 6; | |
8249 | break; | |
8250 | default: | |
8251 | abort (); | |
8252 | } | |
8253 | } | |
8254 | ||
8255 | /* Return cost of comparison done using fcomi operation. | |
8256 | See ix86_fp_comparison_arithmetics_cost for the metrics. */ | |
8257 | static int | |
8258 | ix86_fp_comparison_fcomi_cost (code) | |
8259 | enum rtx_code code; | |
8260 | { | |
8261 | enum rtx_code bypass_code, first_code, second_code; | |
8262 | /* Return arbitarily high cost when instruction is not supported - this | |
8263 | prevents gcc from using it. */ | |
8264 | if (!TARGET_CMOVE) | |
8265 | return 1024; | |
8266 | ix86_fp_comparison_codes (code, &bypass_code, &first_code, &second_code); | |
8267 | return (bypass_code != NIL || second_code != NIL) + 2; | |
8268 | } | |
8269 | ||
8270 | /* Return cost of comparison done using sahf operation. | |
8271 | See ix86_fp_comparison_arithmetics_cost for the metrics. */ | |
8272 | static int | |
8273 | ix86_fp_comparison_sahf_cost (code) | |
8274 | enum rtx_code code; | |
8275 | { | |
8276 | enum rtx_code bypass_code, first_code, second_code; | |
8277 | /* Return arbitarily high cost when instruction is not preferred - this | |
8278 | avoids gcc from using it. */ | |
8279 | if (!TARGET_USE_SAHF && !optimize_size) | |
8280 | return 1024; | |
8281 | ix86_fp_comparison_codes (code, &bypass_code, &first_code, &second_code); | |
8282 | return (bypass_code != NIL || second_code != NIL) + 3; | |
8283 | } | |
8284 | ||
8285 | /* Compute cost of the comparison done using any method. | |
8286 | See ix86_fp_comparison_arithmetics_cost for the metrics. */ | |
8287 | static int | |
8288 | ix86_fp_comparison_cost (code) | |
8289 | enum rtx_code code; | |
8290 | { | |
8291 | int fcomi_cost, sahf_cost, arithmetics_cost = 1024; | |
8292 | int min; | |
8293 | ||
8294 | fcomi_cost = ix86_fp_comparison_fcomi_cost (code); | |
8295 | sahf_cost = ix86_fp_comparison_sahf_cost (code); | |
8296 | ||
8297 | min = arithmetics_cost = ix86_fp_comparison_arithmetics_cost (code); | |
8298 | if (min > sahf_cost) | |
8299 | min = sahf_cost; | |
8300 | if (min > fcomi_cost) | |
8301 | min = fcomi_cost; | |
8302 | return min; | |
8303 | } | |
c0c102a9 | 8304 | |
3a3677ff RH |
8305 | /* Generate insn patterns to do a floating point compare of OPERANDS. */ |
8306 | ||
9e7adcb3 JH |
8307 | static rtx |
8308 | ix86_expand_fp_compare (code, op0, op1, scratch, second_test, bypass_test) | |
3a3677ff RH |
8309 | enum rtx_code code; |
8310 | rtx op0, op1, scratch; | |
9e7adcb3 JH |
8311 | rtx *second_test; |
8312 | rtx *bypass_test; | |
3a3677ff RH |
8313 | { |
8314 | enum machine_mode fpcmp_mode, intcmp_mode; | |
c0c102a9 | 8315 | rtx tmp, tmp2; |
9e7adcb3 | 8316 | int cost = ix86_fp_comparison_cost (code); |
c0c102a9 | 8317 | enum rtx_code bypass_code, first_code, second_code; |
3a3677ff RH |
8318 | |
8319 | fpcmp_mode = ix86_fp_compare_mode (code); | |
8320 | code = ix86_prepare_fp_compare_args (code, &op0, &op1); | |
8321 | ||
9e7adcb3 JH |
8322 | if (second_test) |
8323 | *second_test = NULL_RTX; | |
8324 | if (bypass_test) | |
8325 | *bypass_test = NULL_RTX; | |
8326 | ||
c0c102a9 JH |
8327 | ix86_fp_comparison_codes (code, &bypass_code, &first_code, &second_code); |
8328 | ||
9e7adcb3 JH |
8329 | /* Do fcomi/sahf based test when profitable. */ |
8330 | if ((bypass_code == NIL || bypass_test) | |
8331 | && (second_code == NIL || second_test) | |
8332 | && ix86_fp_comparison_arithmetics_cost (code) > cost) | |
32b5b1aa | 8333 | { |
c0c102a9 JH |
8334 | if (TARGET_CMOVE) |
8335 | { | |
8336 | tmp = gen_rtx_COMPARE (fpcmp_mode, op0, op1); | |
8337 | tmp = gen_rtx_SET (VOIDmode, gen_rtx_REG (fpcmp_mode, FLAGS_REG), | |
8338 | tmp); | |
8339 | emit_insn (tmp); | |
8340 | } | |
8341 | else | |
8342 | { | |
8343 | tmp = gen_rtx_COMPARE (fpcmp_mode, op0, op1); | |
8ee41eaf | 8344 | tmp2 = gen_rtx_UNSPEC (HImode, gen_rtvec (1, tmp), UNSPEC_FNSTSW); |
bf71a4f8 JH |
8345 | if (!scratch) |
8346 | scratch = gen_reg_rtx (HImode); | |
c0c102a9 JH |
8347 | emit_insn (gen_rtx_SET (VOIDmode, scratch, tmp2)); |
8348 | emit_insn (gen_x86_sahf_1 (scratch)); | |
8349 | } | |
e075ae69 RH |
8350 | |
8351 | /* The FP codes work out to act like unsigned. */ | |
9a915772 | 8352 | intcmp_mode = fpcmp_mode; |
9e7adcb3 JH |
8353 | code = first_code; |
8354 | if (bypass_code != NIL) | |
8355 | *bypass_test = gen_rtx_fmt_ee (bypass_code, VOIDmode, | |
8356 | gen_rtx_REG (intcmp_mode, FLAGS_REG), | |
8357 | const0_rtx); | |
8358 | if (second_code != NIL) | |
8359 | *second_test = gen_rtx_fmt_ee (second_code, VOIDmode, | |
8360 | gen_rtx_REG (intcmp_mode, FLAGS_REG), | |
8361 | const0_rtx); | |
e075ae69 RH |
8362 | } |
8363 | else | |
8364 | { | |
8365 | /* Sadness wrt reg-stack pops killing fpsr -- gotta get fnstsw first. */ | |
e075ae69 | 8366 | tmp = gen_rtx_COMPARE (fpcmp_mode, op0, op1); |
8ee41eaf | 8367 | tmp2 = gen_rtx_UNSPEC (HImode, gen_rtvec (1, tmp), UNSPEC_FNSTSW); |
bf71a4f8 JH |
8368 | if (!scratch) |
8369 | scratch = gen_reg_rtx (HImode); | |
3a3677ff | 8370 | emit_insn (gen_rtx_SET (VOIDmode, scratch, tmp2)); |
e075ae69 | 8371 | |
9a915772 JH |
8372 | /* In the unordered case, we have to check C2 for NaN's, which |
8373 | doesn't happen to work out to anything nice combination-wise. | |
8374 | So do some bit twiddling on the value we've got in AH to come | |
8375 | up with an appropriate set of condition codes. */ | |
e075ae69 | 8376 | |
9a915772 JH |
8377 | intcmp_mode = CCNOmode; |
8378 | switch (code) | |
32b5b1aa | 8379 | { |
9a915772 JH |
8380 | case GT: |
8381 | case UNGT: | |
8382 | if (code == GT || !TARGET_IEEE_FP) | |
32b5b1aa | 8383 | { |
3a3677ff | 8384 | emit_insn (gen_testqi_ext_ccno_0 (scratch, GEN_INT (0x45))); |
e075ae69 | 8385 | code = EQ; |
9a915772 JH |
8386 | } |
8387 | else | |
8388 | { | |
8389 | emit_insn (gen_andqi_ext_0 (scratch, scratch, GEN_INT (0x45))); | |
8390 | emit_insn (gen_addqi_ext_1 (scratch, scratch, constm1_rtx)); | |
8391 | emit_insn (gen_cmpqi_ext_3 (scratch, GEN_INT (0x44))); | |
8392 | intcmp_mode = CCmode; | |
8393 | code = GEU; | |
8394 | } | |
8395 | break; | |
8396 | case LT: | |
8397 | case UNLT: | |
8398 | if (code == LT && TARGET_IEEE_FP) | |
8399 | { | |
3a3677ff RH |
8400 | emit_insn (gen_andqi_ext_0 (scratch, scratch, GEN_INT (0x45))); |
8401 | emit_insn (gen_cmpqi_ext_3 (scratch, GEN_INT (0x01))); | |
e075ae69 RH |
8402 | intcmp_mode = CCmode; |
8403 | code = EQ; | |
9a915772 JH |
8404 | } |
8405 | else | |
8406 | { | |
8407 | emit_insn (gen_testqi_ext_ccno_0 (scratch, GEN_INT (0x01))); | |
8408 | code = NE; | |
8409 | } | |
8410 | break; | |
8411 | case GE: | |
8412 | case UNGE: | |
8413 | if (code == GE || !TARGET_IEEE_FP) | |
8414 | { | |
3a3677ff | 8415 | emit_insn (gen_testqi_ext_ccno_0 (scratch, GEN_INT (0x05))); |
e075ae69 | 8416 | code = EQ; |
9a915772 JH |
8417 | } |
8418 | else | |
8419 | { | |
8420 | emit_insn (gen_andqi_ext_0 (scratch, scratch, GEN_INT (0x45))); | |
8421 | emit_insn (gen_xorqi_cc_ext_1 (scratch, scratch, | |
8422 | GEN_INT (0x01))); | |
8423 | code = NE; | |
8424 | } | |
8425 | break; | |
8426 | case LE: | |
8427 | case UNLE: | |
8428 | if (code == LE && TARGET_IEEE_FP) | |
8429 | { | |
3a3677ff RH |
8430 | emit_insn (gen_andqi_ext_0 (scratch, scratch, GEN_INT (0x45))); |
8431 | emit_insn (gen_addqi_ext_1 (scratch, scratch, constm1_rtx)); | |
8432 | emit_insn (gen_cmpqi_ext_3 (scratch, GEN_INT (0x40))); | |
e075ae69 RH |
8433 | intcmp_mode = CCmode; |
8434 | code = LTU; | |
9a915772 JH |
8435 | } |
8436 | else | |
8437 | { | |
8438 | emit_insn (gen_testqi_ext_ccno_0 (scratch, GEN_INT (0x45))); | |
8439 | code = NE; | |
8440 | } | |
8441 | break; | |
8442 | case EQ: | |
8443 | case UNEQ: | |
8444 | if (code == EQ && TARGET_IEEE_FP) | |
8445 | { | |
3a3677ff RH |
8446 | emit_insn (gen_andqi_ext_0 (scratch, scratch, GEN_INT (0x45))); |
8447 | emit_insn (gen_cmpqi_ext_3 (scratch, GEN_INT (0x40))); | |
e075ae69 RH |
8448 | intcmp_mode = CCmode; |
8449 | code = EQ; | |
9a915772 JH |
8450 | } |
8451 | else | |
8452 | { | |
3a3677ff RH |
8453 | emit_insn (gen_testqi_ext_ccno_0 (scratch, GEN_INT (0x40))); |
8454 | code = NE; | |
8455 | break; | |
9a915772 JH |
8456 | } |
8457 | break; | |
8458 | case NE: | |
8459 | case LTGT: | |
8460 | if (code == NE && TARGET_IEEE_FP) | |
8461 | { | |
3a3677ff | 8462 | emit_insn (gen_andqi_ext_0 (scratch, scratch, GEN_INT (0x45))); |
9a915772 JH |
8463 | emit_insn (gen_xorqi_cc_ext_1 (scratch, scratch, |
8464 | GEN_INT (0x40))); | |
3a3677ff | 8465 | code = NE; |
9a915772 JH |
8466 | } |
8467 | else | |
8468 | { | |
3a3677ff RH |
8469 | emit_insn (gen_testqi_ext_ccno_0 (scratch, GEN_INT (0x40))); |
8470 | code = EQ; | |
32b5b1aa | 8471 | } |
9a915772 JH |
8472 | break; |
8473 | ||
8474 | case UNORDERED: | |
8475 | emit_insn (gen_testqi_ext_ccno_0 (scratch, GEN_INT (0x04))); | |
8476 | code = NE; | |
8477 | break; | |
8478 | case ORDERED: | |
8479 | emit_insn (gen_testqi_ext_ccno_0 (scratch, GEN_INT (0x04))); | |
8480 | code = EQ; | |
8481 | break; | |
8482 | ||
8483 | default: | |
8484 | abort (); | |
32b5b1aa | 8485 | } |
32b5b1aa | 8486 | } |
e075ae69 RH |
8487 | |
8488 | /* Return the test that should be put into the flags user, i.e. | |
8489 | the bcc, scc, or cmov instruction. */ | |
8490 | return gen_rtx_fmt_ee (code, VOIDmode, | |
8491 | gen_rtx_REG (intcmp_mode, FLAGS_REG), | |
8492 | const0_rtx); | |
8493 | } | |
8494 | ||
9e3e266c | 8495 | rtx |
a1b8572c | 8496 | ix86_expand_compare (code, second_test, bypass_test) |
e075ae69 | 8497 | enum rtx_code code; |
a1b8572c | 8498 | rtx *second_test, *bypass_test; |
e075ae69 RH |
8499 | { |
8500 | rtx op0, op1, ret; | |
8501 | op0 = ix86_compare_op0; | |
8502 | op1 = ix86_compare_op1; | |
8503 | ||
a1b8572c JH |
8504 | if (second_test) |
8505 | *second_test = NULL_RTX; | |
8506 | if (bypass_test) | |
8507 | *bypass_test = NULL_RTX; | |
8508 | ||
e075ae69 | 8509 | if (GET_MODE_CLASS (GET_MODE (op0)) == MODE_FLOAT) |
bf71a4f8 | 8510 | ret = ix86_expand_fp_compare (code, op0, op1, NULL_RTX, |
77ebd435 | 8511 | second_test, bypass_test); |
32b5b1aa | 8512 | else |
e075ae69 RH |
8513 | ret = ix86_expand_int_compare (code, op0, op1); |
8514 | ||
8515 | return ret; | |
8516 | } | |
8517 | ||
03598dea JH |
8518 | /* Return true if the CODE will result in nontrivial jump sequence. */ |
8519 | bool | |
8520 | ix86_fp_jump_nontrivial_p (code) | |
8521 | enum rtx_code code; | |
8522 | { | |
8523 | enum rtx_code bypass_code, first_code, second_code; | |
8524 | if (!TARGET_CMOVE) | |
8525 | return true; | |
8526 | ix86_fp_comparison_codes (code, &bypass_code, &first_code, &second_code); | |
8527 | return bypass_code != NIL || second_code != NIL; | |
8528 | } | |
8529 | ||
e075ae69 | 8530 | void |
3a3677ff | 8531 | ix86_expand_branch (code, label) |
e075ae69 | 8532 | enum rtx_code code; |
e075ae69 RH |
8533 | rtx label; |
8534 | { | |
3a3677ff | 8535 | rtx tmp; |
e075ae69 | 8536 | |
3a3677ff | 8537 | switch (GET_MODE (ix86_compare_op0)) |
32b5b1aa | 8538 | { |
3a3677ff RH |
8539 | case QImode: |
8540 | case HImode: | |
8541 | case SImode: | |
0d7d98ee | 8542 | simple: |
a1b8572c | 8543 | tmp = ix86_expand_compare (code, NULL, NULL); |
e075ae69 RH |
8544 | tmp = gen_rtx_IF_THEN_ELSE (VOIDmode, tmp, |
8545 | gen_rtx_LABEL_REF (VOIDmode, label), | |
8546 | pc_rtx); | |
8547 | emit_jump_insn (gen_rtx_SET (VOIDmode, pc_rtx, tmp)); | |
32b5b1aa | 8548 | return; |
e075ae69 | 8549 | |
3a3677ff RH |
8550 | case SFmode: |
8551 | case DFmode: | |
0f290768 | 8552 | case XFmode: |
2b589241 | 8553 | case TFmode: |
3a3677ff RH |
8554 | { |
8555 | rtvec vec; | |
8556 | int use_fcomi; | |
03598dea | 8557 | enum rtx_code bypass_code, first_code, second_code; |
3a3677ff RH |
8558 | |
8559 | code = ix86_prepare_fp_compare_args (code, &ix86_compare_op0, | |
8560 | &ix86_compare_op1); | |
fce5a9f2 | 8561 | |
03598dea JH |
8562 | ix86_fp_comparison_codes (code, &bypass_code, &first_code, &second_code); |
8563 | ||
8564 | /* Check whether we will use the natural sequence with one jump. If | |
8565 | so, we can expand jump early. Otherwise delay expansion by | |
8566 | creating compound insn to not confuse optimizers. */ | |
8567 | if (bypass_code == NIL && second_code == NIL | |
8568 | && TARGET_CMOVE) | |
8569 | { | |
8570 | ix86_split_fp_branch (code, ix86_compare_op0, ix86_compare_op1, | |
8571 | gen_rtx_LABEL_REF (VOIDmode, label), | |
8572 | pc_rtx, NULL_RTX); | |
8573 | } | |
8574 | else | |
8575 | { | |
8576 | tmp = gen_rtx_fmt_ee (code, VOIDmode, | |
8577 | ix86_compare_op0, ix86_compare_op1); | |
8578 | tmp = gen_rtx_IF_THEN_ELSE (VOIDmode, tmp, | |
8579 | gen_rtx_LABEL_REF (VOIDmode, label), | |
8580 | pc_rtx); | |
8581 | tmp = gen_rtx_SET (VOIDmode, pc_rtx, tmp); | |
8582 | ||
8583 | use_fcomi = ix86_use_fcomi_compare (code); | |
8584 | vec = rtvec_alloc (3 + !use_fcomi); | |
8585 | RTVEC_ELT (vec, 0) = tmp; | |
8586 | RTVEC_ELT (vec, 1) | |
8587 | = gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (CCFPmode, 18)); | |
8588 | RTVEC_ELT (vec, 2) | |
8589 | = gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (CCFPmode, 17)); | |
8590 | if (! use_fcomi) | |
8591 | RTVEC_ELT (vec, 3) | |
8592 | = gen_rtx_CLOBBER (VOIDmode, gen_rtx_SCRATCH (HImode)); | |
8593 | ||
8594 | emit_jump_insn (gen_rtx_PARALLEL (VOIDmode, vec)); | |
8595 | } | |
3a3677ff RH |
8596 | return; |
8597 | } | |
32b5b1aa | 8598 | |
3a3677ff | 8599 | case DImode: |
0d7d98ee JH |
8600 | if (TARGET_64BIT) |
8601 | goto simple; | |
3a3677ff RH |
8602 | /* Expand DImode branch into multiple compare+branch. */ |
8603 | { | |
8604 | rtx lo[2], hi[2], label2; | |
8605 | enum rtx_code code1, code2, code3; | |
32b5b1aa | 8606 | |
3a3677ff RH |
8607 | if (CONSTANT_P (ix86_compare_op0) && ! CONSTANT_P (ix86_compare_op1)) |
8608 | { | |
8609 | tmp = ix86_compare_op0; | |
8610 | ix86_compare_op0 = ix86_compare_op1; | |
8611 | ix86_compare_op1 = tmp; | |
8612 | code = swap_condition (code); | |
8613 | } | |
8614 | split_di (&ix86_compare_op0, 1, lo+0, hi+0); | |
8615 | split_di (&ix86_compare_op1, 1, lo+1, hi+1); | |
32b5b1aa | 8616 | |
3a3677ff RH |
8617 | /* When comparing for equality, we can use (hi0^hi1)|(lo0^lo1) to |
8618 | avoid two branches. This costs one extra insn, so disable when | |
8619 | optimizing for size. */ | |
32b5b1aa | 8620 | |
3a3677ff RH |
8621 | if ((code == EQ || code == NE) |
8622 | && (!optimize_size | |
8623 | || hi[1] == const0_rtx || lo[1] == const0_rtx)) | |
8624 | { | |
8625 | rtx xor0, xor1; | |
32b5b1aa | 8626 | |
3a3677ff RH |
8627 | xor1 = hi[0]; |
8628 | if (hi[1] != const0_rtx) | |
8629 | xor1 = expand_binop (SImode, xor_optab, xor1, hi[1], | |
8630 | NULL_RTX, 0, OPTAB_WIDEN); | |
32b5b1aa | 8631 | |
3a3677ff RH |
8632 | xor0 = lo[0]; |
8633 | if (lo[1] != const0_rtx) | |
8634 | xor0 = expand_binop (SImode, xor_optab, xor0, lo[1], | |
8635 | NULL_RTX, 0, OPTAB_WIDEN); | |
e075ae69 | 8636 | |
3a3677ff RH |
8637 | tmp = expand_binop (SImode, ior_optab, xor1, xor0, |
8638 | NULL_RTX, 0, OPTAB_WIDEN); | |
32b5b1aa | 8639 | |
3a3677ff RH |
8640 | ix86_compare_op0 = tmp; |
8641 | ix86_compare_op1 = const0_rtx; | |
8642 | ix86_expand_branch (code, label); | |
8643 | return; | |
8644 | } | |
e075ae69 | 8645 | |
1f9124e4 JJ |
8646 | /* Otherwise, if we are doing less-than or greater-or-equal-than, |
8647 | op1 is a constant and the low word is zero, then we can just | |
8648 | examine the high word. */ | |
32b5b1aa | 8649 | |
1f9124e4 JJ |
8650 | if (GET_CODE (hi[1]) == CONST_INT && lo[1] == const0_rtx) |
8651 | switch (code) | |
8652 | { | |
8653 | case LT: case LTU: case GE: case GEU: | |
8654 | ix86_compare_op0 = hi[0]; | |
8655 | ix86_compare_op1 = hi[1]; | |
8656 | ix86_expand_branch (code, label); | |
8657 | return; | |
8658 | default: | |
8659 | break; | |
8660 | } | |
e075ae69 | 8661 | |
3a3677ff | 8662 | /* Otherwise, we need two or three jumps. */ |
e075ae69 | 8663 | |
3a3677ff | 8664 | label2 = gen_label_rtx (); |
e075ae69 | 8665 | |
3a3677ff RH |
8666 | code1 = code; |
8667 | code2 = swap_condition (code); | |
8668 | code3 = unsigned_condition (code); | |
e075ae69 | 8669 | |
3a3677ff RH |
8670 | switch (code) |
8671 | { | |
8672 | case LT: case GT: case LTU: case GTU: | |
8673 | break; | |
e075ae69 | 8674 | |
3a3677ff RH |
8675 | case LE: code1 = LT; code2 = GT; break; |
8676 | case GE: code1 = GT; code2 = LT; break; | |
8677 | case LEU: code1 = LTU; code2 = GTU; break; | |
8678 | case GEU: code1 = GTU; code2 = LTU; break; | |
e075ae69 | 8679 | |
3a3677ff RH |
8680 | case EQ: code1 = NIL; code2 = NE; break; |
8681 | case NE: code2 = NIL; break; | |
e075ae69 | 8682 | |
3a3677ff RH |
8683 | default: |
8684 | abort (); | |
8685 | } | |
e075ae69 | 8686 | |
3a3677ff RH |
8687 | /* |
8688 | * a < b => | |
8689 | * if (hi(a) < hi(b)) goto true; | |
8690 | * if (hi(a) > hi(b)) goto false; | |
8691 | * if (lo(a) < lo(b)) goto true; | |
8692 | * false: | |
8693 | */ | |
8694 | ||
8695 | ix86_compare_op0 = hi[0]; | |
8696 | ix86_compare_op1 = hi[1]; | |
8697 | ||
8698 | if (code1 != NIL) | |
8699 | ix86_expand_branch (code1, label); | |
8700 | if (code2 != NIL) | |
8701 | ix86_expand_branch (code2, label2); | |
8702 | ||
8703 | ix86_compare_op0 = lo[0]; | |
8704 | ix86_compare_op1 = lo[1]; | |
8705 | ix86_expand_branch (code3, label); | |
8706 | ||
8707 | if (code2 != NIL) | |
8708 | emit_label (label2); | |
8709 | return; | |
8710 | } | |
e075ae69 | 8711 | |
3a3677ff RH |
8712 | default: |
8713 | abort (); | |
8714 | } | |
32b5b1aa | 8715 | } |
e075ae69 | 8716 | |
9e7adcb3 JH |
8717 | /* Split branch based on floating point condition. */ |
8718 | void | |
03598dea JH |
8719 | ix86_split_fp_branch (code, op1, op2, target1, target2, tmp) |
8720 | enum rtx_code code; | |
8721 | rtx op1, op2, target1, target2, tmp; | |
9e7adcb3 JH |
8722 | { |
8723 | rtx second, bypass; | |
8724 | rtx label = NULL_RTX; | |
03598dea | 8725 | rtx condition; |
6b24c259 JH |
8726 | int bypass_probability = -1, second_probability = -1, probability = -1; |
8727 | rtx i; | |
9e7adcb3 JH |
8728 | |
8729 | if (target2 != pc_rtx) | |
8730 | { | |
8731 | rtx tmp = target2; | |
8732 | code = reverse_condition_maybe_unordered (code); | |
8733 | target2 = target1; | |
8734 | target1 = tmp; | |
8735 | } | |
8736 | ||
8737 | condition = ix86_expand_fp_compare (code, op1, op2, | |
8738 | tmp, &second, &bypass); | |
6b24c259 JH |
8739 | |
8740 | if (split_branch_probability >= 0) | |
8741 | { | |
8742 | /* Distribute the probabilities across the jumps. | |
8743 | Assume the BYPASS and SECOND to be always test | |
8744 | for UNORDERED. */ | |
8745 | probability = split_branch_probability; | |
8746 | ||
d6a7951f | 8747 | /* Value of 1 is low enough to make no need for probability |
6b24c259 JH |
8748 | to be updated. Later we may run some experiments and see |
8749 | if unordered values are more frequent in practice. */ | |
8750 | if (bypass) | |
8751 | bypass_probability = 1; | |
8752 | if (second) | |
8753 | second_probability = 1; | |
8754 | } | |
9e7adcb3 JH |
8755 | if (bypass != NULL_RTX) |
8756 | { | |
8757 | label = gen_label_rtx (); | |
6b24c259 JH |
8758 | i = emit_jump_insn (gen_rtx_SET |
8759 | (VOIDmode, pc_rtx, | |
8760 | gen_rtx_IF_THEN_ELSE (VOIDmode, | |
8761 | bypass, | |
8762 | gen_rtx_LABEL_REF (VOIDmode, | |
8763 | label), | |
8764 | pc_rtx))); | |
8765 | if (bypass_probability >= 0) | |
8766 | REG_NOTES (i) | |
8767 | = gen_rtx_EXPR_LIST (REG_BR_PROB, | |
8768 | GEN_INT (bypass_probability), | |
8769 | REG_NOTES (i)); | |
8770 | } | |
8771 | i = emit_jump_insn (gen_rtx_SET | |
9e7adcb3 JH |
8772 | (VOIDmode, pc_rtx, |
8773 | gen_rtx_IF_THEN_ELSE (VOIDmode, | |
6b24c259 JH |
8774 | condition, target1, target2))); |
8775 | if (probability >= 0) | |
8776 | REG_NOTES (i) | |
8777 | = gen_rtx_EXPR_LIST (REG_BR_PROB, | |
8778 | GEN_INT (probability), | |
8779 | REG_NOTES (i)); | |
8780 | if (second != NULL_RTX) | |
9e7adcb3 | 8781 | { |
6b24c259 JH |
8782 | i = emit_jump_insn (gen_rtx_SET |
8783 | (VOIDmode, pc_rtx, | |
8784 | gen_rtx_IF_THEN_ELSE (VOIDmode, second, target1, | |
8785 | target2))); | |
8786 | if (second_probability >= 0) | |
8787 | REG_NOTES (i) | |
8788 | = gen_rtx_EXPR_LIST (REG_BR_PROB, | |
8789 | GEN_INT (second_probability), | |
8790 | REG_NOTES (i)); | |
9e7adcb3 | 8791 | } |
9e7adcb3 JH |
8792 | if (label != NULL_RTX) |
8793 | emit_label (label); | |
8794 | } | |
8795 | ||
32b5b1aa | 8796 | int |
3a3677ff | 8797 | ix86_expand_setcc (code, dest) |
e075ae69 | 8798 | enum rtx_code code; |
e075ae69 | 8799 | rtx dest; |
32b5b1aa | 8800 | { |
a1b8572c JH |
8801 | rtx ret, tmp, tmpreg; |
8802 | rtx second_test, bypass_test; | |
e075ae69 | 8803 | |
885a70fd JH |
8804 | if (GET_MODE (ix86_compare_op0) == DImode |
8805 | && !TARGET_64BIT) | |
e075ae69 RH |
8806 | return 0; /* FAIL */ |
8807 | ||
b932f770 JH |
8808 | if (GET_MODE (dest) != QImode) |
8809 | abort (); | |
e075ae69 | 8810 | |
a1b8572c | 8811 | ret = ix86_expand_compare (code, &second_test, &bypass_test); |
e075ae69 RH |
8812 | PUT_MODE (ret, QImode); |
8813 | ||
8814 | tmp = dest; | |
a1b8572c | 8815 | tmpreg = dest; |
32b5b1aa | 8816 | |
e075ae69 | 8817 | emit_insn (gen_rtx_SET (VOIDmode, tmp, ret)); |
a1b8572c JH |
8818 | if (bypass_test || second_test) |
8819 | { | |
8820 | rtx test = second_test; | |
8821 | int bypass = 0; | |
8822 | rtx tmp2 = gen_reg_rtx (QImode); | |
8823 | if (bypass_test) | |
8824 | { | |
8825 | if (second_test) | |
b531087a | 8826 | abort (); |
a1b8572c JH |
8827 | test = bypass_test; |
8828 | bypass = 1; | |
8829 | PUT_CODE (test, reverse_condition_maybe_unordered (GET_CODE (test))); | |
8830 | } | |
8831 | PUT_MODE (test, QImode); | |
8832 | emit_insn (gen_rtx_SET (VOIDmode, tmp2, test)); | |
8833 | ||
8834 | if (bypass) | |
8835 | emit_insn (gen_andqi3 (tmp, tmpreg, tmp2)); | |
8836 | else | |
8837 | emit_insn (gen_iorqi3 (tmp, tmpreg, tmp2)); | |
8838 | } | |
e075ae69 | 8839 | |
e075ae69 | 8840 | return 1; /* DONE */ |
32b5b1aa | 8841 | } |
e075ae69 | 8842 | |
32b5b1aa | 8843 | int |
e075ae69 RH |
8844 | ix86_expand_int_movcc (operands) |
8845 | rtx operands[]; | |
32b5b1aa | 8846 | { |
e075ae69 RH |
8847 | enum rtx_code code = GET_CODE (operands[1]), compare_code; |
8848 | rtx compare_seq, compare_op; | |
a1b8572c | 8849 | rtx second_test, bypass_test; |
635559ab | 8850 | enum machine_mode mode = GET_MODE (operands[0]); |
32b5b1aa | 8851 | |
36583fea JH |
8852 | /* When the compare code is not LTU or GEU, we can not use sbbl case. |
8853 | In case comparsion is done with immediate, we can convert it to LTU or | |
8854 | GEU by altering the integer. */ | |
8855 | ||
8856 | if ((code == LEU || code == GTU) | |
8857 | && GET_CODE (ix86_compare_op1) == CONST_INT | |
635559ab | 8858 | && mode != HImode |
261376e7 RH |
8859 | && INTVAL (ix86_compare_op1) != -1 |
8860 | /* For x86-64, the immediate field in the instruction is 32-bit | |
8861 | signed, so we can't increment a DImode value above 0x7fffffff. */ | |
74411039 JH |
8862 | && (!TARGET_64BIT |
8863 | || GET_MODE (ix86_compare_op0) != DImode | |
261376e7 | 8864 | || INTVAL (ix86_compare_op1) != 0x7fffffff) |
0f290768 | 8865 | && GET_CODE (operands[2]) == CONST_INT |
36583fea JH |
8866 | && GET_CODE (operands[3]) == CONST_INT) |
8867 | { | |
8868 | if (code == LEU) | |
8869 | code = LTU; | |
8870 | else | |
8871 | code = GEU; | |
261376e7 RH |
8872 | ix86_compare_op1 = gen_int_mode (INTVAL (ix86_compare_op1) + 1, |
8873 | GET_MODE (ix86_compare_op0)); | |
36583fea | 8874 | } |
3a3677ff | 8875 | |
e075ae69 | 8876 | start_sequence (); |
a1b8572c | 8877 | compare_op = ix86_expand_compare (code, &second_test, &bypass_test); |
2f937369 | 8878 | compare_seq = get_insns (); |
e075ae69 RH |
8879 | end_sequence (); |
8880 | ||
8881 | compare_code = GET_CODE (compare_op); | |
8882 | ||
8883 | /* Don't attempt mode expansion here -- if we had to expand 5 or 6 | |
8884 | HImode insns, we'd be swallowed in word prefix ops. */ | |
8885 | ||
635559ab JH |
8886 | if (mode != HImode |
8887 | && (mode != DImode || TARGET_64BIT) | |
0f290768 | 8888 | && GET_CODE (operands[2]) == CONST_INT |
e075ae69 RH |
8889 | && GET_CODE (operands[3]) == CONST_INT) |
8890 | { | |
8891 | rtx out = operands[0]; | |
8892 | HOST_WIDE_INT ct = INTVAL (operands[2]); | |
8893 | HOST_WIDE_INT cf = INTVAL (operands[3]); | |
8894 | HOST_WIDE_INT diff; | |
8895 | ||
a1b8572c JH |
8896 | if ((compare_code == LTU || compare_code == GEU) |
8897 | && !second_test && !bypass_test) | |
e075ae69 | 8898 | { |
e075ae69 RH |
8899 | /* Detect overlap between destination and compare sources. */ |
8900 | rtx tmp = out; | |
8901 | ||
0f290768 | 8902 | /* To simplify rest of code, restrict to the GEU case. */ |
36583fea JH |
8903 | if (compare_code == LTU) |
8904 | { | |
8905 | int tmp = ct; | |
8906 | ct = cf; | |
8907 | cf = tmp; | |
8908 | compare_code = reverse_condition (compare_code); | |
8909 | code = reverse_condition (code); | |
8910 | } | |
8911 | diff = ct - cf; | |
8912 | ||
e075ae69 | 8913 | if (reg_overlap_mentioned_p (out, ix86_compare_op0) |
a500c31b | 8914 | || reg_overlap_mentioned_p (out, ix86_compare_op1)) |
635559ab | 8915 | tmp = gen_reg_rtx (mode); |
e075ae69 RH |
8916 | |
8917 | emit_insn (compare_seq); | |
635559ab | 8918 | if (mode == DImode) |
14f73b5a JH |
8919 | emit_insn (gen_x86_movdicc_0_m1_rex64 (tmp)); |
8920 | else | |
8921 | emit_insn (gen_x86_movsicc_0_m1 (tmp)); | |
e075ae69 | 8922 | |
36583fea JH |
8923 | if (diff == 1) |
8924 | { | |
8925 | /* | |
8926 | * cmpl op0,op1 | |
8927 | * sbbl dest,dest | |
8928 | * [addl dest, ct] | |
8929 | * | |
8930 | * Size 5 - 8. | |
8931 | */ | |
8932 | if (ct) | |
635559ab JH |
8933 | tmp = expand_simple_binop (mode, PLUS, |
8934 | tmp, GEN_INT (ct), | |
8935 | tmp, 1, OPTAB_DIRECT); | |
36583fea JH |
8936 | } |
8937 | else if (cf == -1) | |
8938 | { | |
8939 | /* | |
8940 | * cmpl op0,op1 | |
8941 | * sbbl dest,dest | |
8942 | * orl $ct, dest | |
8943 | * | |
8944 | * Size 8. | |
8945 | */ | |
635559ab JH |
8946 | tmp = expand_simple_binop (mode, IOR, |
8947 | tmp, GEN_INT (ct), | |
8948 | tmp, 1, OPTAB_DIRECT); | |
36583fea JH |
8949 | } |
8950 | else if (diff == -1 && ct) | |
8951 | { | |
8952 | /* | |
8953 | * cmpl op0,op1 | |
8954 | * sbbl dest,dest | |
06ec023f | 8955 | * notl dest |
36583fea JH |
8956 | * [addl dest, cf] |
8957 | * | |
8958 | * Size 8 - 11. | |
8959 | */ | |
635559ab JH |
8960 | tmp = expand_simple_unop (mode, NOT, tmp, tmp, 1); |
8961 | if (cf) | |
8962 | tmp = expand_simple_binop (mode, PLUS, | |
8963 | tmp, GEN_INT (cf), | |
8964 | tmp, 1, OPTAB_DIRECT); | |
36583fea JH |
8965 | } |
8966 | else | |
8967 | { | |
8968 | /* | |
8969 | * cmpl op0,op1 | |
8970 | * sbbl dest,dest | |
06ec023f | 8971 | * [notl dest] |
36583fea JH |
8972 | * andl cf - ct, dest |
8973 | * [addl dest, ct] | |
8974 | * | |
8975 | * Size 8 - 11. | |
8976 | */ | |
06ec023f RB |
8977 | |
8978 | if (cf == 0) | |
8979 | { | |
8980 | cf = ct; | |
8981 | ct = 0; | |
8982 | tmp = expand_simple_unop (mode, NOT, tmp, tmp, 1); | |
8983 | } | |
8984 | ||
635559ab JH |
8985 | tmp = expand_simple_binop (mode, AND, |
8986 | tmp, | |
d8bf17f9 | 8987 | gen_int_mode (cf - ct, mode), |
635559ab JH |
8988 | tmp, 1, OPTAB_DIRECT); |
8989 | if (ct) | |
8990 | tmp = expand_simple_binop (mode, PLUS, | |
8991 | tmp, GEN_INT (ct), | |
8992 | tmp, 1, OPTAB_DIRECT); | |
36583fea | 8993 | } |
e075ae69 RH |
8994 | |
8995 | if (tmp != out) | |
8996 | emit_move_insn (out, tmp); | |
8997 | ||
8998 | return 1; /* DONE */ | |
8999 | } | |
9000 | ||
9001 | diff = ct - cf; | |
9002 | if (diff < 0) | |
9003 | { | |
9004 | HOST_WIDE_INT tmp; | |
9005 | tmp = ct, ct = cf, cf = tmp; | |
9006 | diff = -diff; | |
734dba19 JH |
9007 | if (FLOAT_MODE_P (GET_MODE (ix86_compare_op0))) |
9008 | { | |
9009 | /* We may be reversing unordered compare to normal compare, that | |
9010 | is not valid in general (we may convert non-trapping condition | |
9011 | to trapping one), however on i386 we currently emit all | |
9012 | comparisons unordered. */ | |
9013 | compare_code = reverse_condition_maybe_unordered (compare_code); | |
9014 | code = reverse_condition_maybe_unordered (code); | |
9015 | } | |
9016 | else | |
9017 | { | |
9018 | compare_code = reverse_condition (compare_code); | |
9019 | code = reverse_condition (code); | |
9020 | } | |
e075ae69 | 9021 | } |
0f2a3457 JJ |
9022 | |
9023 | compare_code = NIL; | |
9024 | if (GET_MODE_CLASS (GET_MODE (ix86_compare_op0)) == MODE_INT | |
9025 | && GET_CODE (ix86_compare_op1) == CONST_INT) | |
9026 | { | |
9027 | if (ix86_compare_op1 == const0_rtx | |
9028 | && (code == LT || code == GE)) | |
9029 | compare_code = code; | |
9030 | else if (ix86_compare_op1 == constm1_rtx) | |
9031 | { | |
9032 | if (code == LE) | |
9033 | compare_code = LT; | |
9034 | else if (code == GT) | |
9035 | compare_code = GE; | |
9036 | } | |
9037 | } | |
9038 | ||
9039 | /* Optimize dest = (op0 < 0) ? -1 : cf. */ | |
9040 | if (compare_code != NIL | |
9041 | && GET_MODE (ix86_compare_op0) == GET_MODE (out) | |
9042 | && (cf == -1 || ct == -1)) | |
9043 | { | |
9044 | /* If lea code below could be used, only optimize | |
9045 | if it results in a 2 insn sequence. */ | |
9046 | ||
9047 | if (! (diff == 1 || diff == 2 || diff == 4 || diff == 8 | |
9048 | || diff == 3 || diff == 5 || diff == 9) | |
9049 | || (compare_code == LT && ct == -1) | |
9050 | || (compare_code == GE && cf == -1)) | |
9051 | { | |
9052 | /* | |
9053 | * notl op1 (if necessary) | |
9054 | * sarl $31, op1 | |
9055 | * orl cf, op1 | |
9056 | */ | |
9057 | if (ct != -1) | |
9058 | { | |
9059 | cf = ct; | |
9060 | ct = -1; | |
9061 | code = reverse_condition (code); | |
9062 | } | |
9063 | ||
9064 | out = emit_store_flag (out, code, ix86_compare_op0, | |
9065 | ix86_compare_op1, VOIDmode, 0, -1); | |
9066 | ||
9067 | out = expand_simple_binop (mode, IOR, | |
9068 | out, GEN_INT (cf), | |
9069 | out, 1, OPTAB_DIRECT); | |
9070 | if (out != operands[0]) | |
9071 | emit_move_insn (operands[0], out); | |
9072 | ||
9073 | return 1; /* DONE */ | |
9074 | } | |
9075 | } | |
9076 | ||
635559ab JH |
9077 | if ((diff == 1 || diff == 2 || diff == 4 || diff == 8 |
9078 | || diff == 3 || diff == 5 || diff == 9) | |
9079 | && (mode != DImode || x86_64_sign_extended_value (GEN_INT (cf)))) | |
e075ae69 RH |
9080 | { |
9081 | /* | |
9082 | * xorl dest,dest | |
9083 | * cmpl op1,op2 | |
9084 | * setcc dest | |
9085 | * lea cf(dest*(ct-cf)),dest | |
9086 | * | |
9087 | * Size 14. | |
9088 | * | |
9089 | * This also catches the degenerate setcc-only case. | |
9090 | */ | |
9091 | ||
9092 | rtx tmp; | |
9093 | int nops; | |
9094 | ||
9095 | out = emit_store_flag (out, code, ix86_compare_op0, | |
9096 | ix86_compare_op1, VOIDmode, 0, 1); | |
9097 | ||
9098 | nops = 0; | |
97f51ac4 RB |
9099 | /* On x86_64 the lea instruction operates on Pmode, so we need |
9100 | to get arithmetics done in proper mode to match. */ | |
e075ae69 | 9101 | if (diff == 1) |
14f73b5a | 9102 | tmp = out; |
e075ae69 RH |
9103 | else |
9104 | { | |
885a70fd | 9105 | rtx out1; |
14f73b5a | 9106 | out1 = out; |
635559ab | 9107 | tmp = gen_rtx_MULT (mode, out1, GEN_INT (diff & ~1)); |
e075ae69 RH |
9108 | nops++; |
9109 | if (diff & 1) | |
9110 | { | |
635559ab | 9111 | tmp = gen_rtx_PLUS (mode, tmp, out1); |
e075ae69 RH |
9112 | nops++; |
9113 | } | |
9114 | } | |
9115 | if (cf != 0) | |
9116 | { | |
635559ab | 9117 | tmp = gen_rtx_PLUS (mode, tmp, GEN_INT (cf)); |
e075ae69 RH |
9118 | nops++; |
9119 | } | |
885a70fd JH |
9120 | if (tmp != out |
9121 | && (GET_CODE (tmp) != SUBREG || SUBREG_REG (tmp) != out)) | |
e075ae69 | 9122 | { |
14f73b5a | 9123 | if (nops == 1) |
e075ae69 RH |
9124 | { |
9125 | rtx clob; | |
9126 | ||
9127 | clob = gen_rtx_REG (CCmode, FLAGS_REG); | |
9128 | clob = gen_rtx_CLOBBER (VOIDmode, clob); | |
9129 | ||
9130 | tmp = gen_rtx_SET (VOIDmode, out, tmp); | |
9131 | tmp = gen_rtx_PARALLEL (VOIDmode, gen_rtvec (2, tmp, clob)); | |
9132 | emit_insn (tmp); | |
9133 | } | |
9134 | else | |
9135 | emit_insn (gen_rtx_SET (VOIDmode, out, tmp)); | |
9136 | } | |
9137 | if (out != operands[0]) | |
1985ef90 | 9138 | emit_move_insn (operands[0], copy_rtx (out)); |
e075ae69 RH |
9139 | |
9140 | return 1; /* DONE */ | |
9141 | } | |
9142 | ||
9143 | /* | |
9144 | * General case: Jumpful: | |
9145 | * xorl dest,dest cmpl op1, op2 | |
9146 | * cmpl op1, op2 movl ct, dest | |
9147 | * setcc dest jcc 1f | |
9148 | * decl dest movl cf, dest | |
9149 | * andl (cf-ct),dest 1: | |
9150 | * addl ct,dest | |
0f290768 | 9151 | * |
e075ae69 RH |
9152 | * Size 20. Size 14. |
9153 | * | |
9154 | * This is reasonably steep, but branch mispredict costs are | |
9155 | * high on modern cpus, so consider failing only if optimizing | |
9156 | * for space. | |
9157 | * | |
9158 | * %%% Parameterize branch_cost on the tuning architecture, then | |
9159 | * use that. The 80386 couldn't care less about mispredicts. | |
9160 | */ | |
9161 | ||
9162 | if (!optimize_size && !TARGET_CMOVE) | |
9163 | { | |
97f51ac4 | 9164 | if (cf == 0) |
e075ae69 | 9165 | { |
97f51ac4 RB |
9166 | cf = ct; |
9167 | ct = 0; | |
734dba19 | 9168 | if (FLOAT_MODE_P (GET_MODE (ix86_compare_op0))) |
0f2a3457 JJ |
9169 | /* We may be reversing unordered compare to normal compare, |
9170 | that is not valid in general (we may convert non-trapping | |
9171 | condition to trapping one), however on i386 we currently | |
9172 | emit all comparisons unordered. */ | |
9173 | code = reverse_condition_maybe_unordered (code); | |
9174 | else | |
9175 | { | |
9176 | code = reverse_condition (code); | |
9177 | if (compare_code != NIL) | |
9178 | compare_code = reverse_condition (compare_code); | |
9179 | } | |
9180 | } | |
9181 | ||
9182 | if (compare_code != NIL) | |
9183 | { | |
9184 | /* notl op1 (if needed) | |
9185 | sarl $31, op1 | |
9186 | andl (cf-ct), op1 | |
9187 | addl ct, op1 | |
9188 | ||
9189 | For x < 0 (resp. x <= -1) there will be no notl, | |
9190 | so if possible swap the constants to get rid of the | |
9191 | complement. | |
9192 | True/false will be -1/0 while code below (store flag | |
9193 | followed by decrement) is 0/-1, so the constants need | |
9194 | to be exchanged once more. */ | |
9195 | ||
9196 | if (compare_code == GE || !cf) | |
734dba19 | 9197 | { |
0f2a3457 JJ |
9198 | code = reverse_condition (code); |
9199 | compare_code = LT; | |
734dba19 JH |
9200 | } |
9201 | else | |
9202 | { | |
0f2a3457 JJ |
9203 | HOST_WIDE_INT tmp = cf; |
9204 | cf = ct; | |
9205 | ct = tmp; | |
734dba19 | 9206 | } |
0f2a3457 JJ |
9207 | |
9208 | out = emit_store_flag (out, code, ix86_compare_op0, | |
9209 | ix86_compare_op1, VOIDmode, 0, -1); | |
e075ae69 | 9210 | } |
0f2a3457 JJ |
9211 | else |
9212 | { | |
9213 | out = emit_store_flag (out, code, ix86_compare_op0, | |
9214 | ix86_compare_op1, VOIDmode, 0, 1); | |
e075ae69 | 9215 | |
97f51ac4 | 9216 | out = expand_simple_binop (mode, PLUS, out, constm1_rtx, |
0f2a3457 JJ |
9217 | out, 1, OPTAB_DIRECT); |
9218 | } | |
e075ae69 | 9219 | |
97f51ac4 | 9220 | out = expand_simple_binop (mode, AND, out, |
d8bf17f9 | 9221 | gen_int_mode (cf - ct, mode), |
635559ab | 9222 | out, 1, OPTAB_DIRECT); |
97f51ac4 RB |
9223 | if (ct) |
9224 | out = expand_simple_binop (mode, PLUS, out, GEN_INT (ct), | |
9225 | out, 1, OPTAB_DIRECT); | |
e075ae69 RH |
9226 | if (out != operands[0]) |
9227 | emit_move_insn (operands[0], out); | |
9228 | ||
9229 | return 1; /* DONE */ | |
9230 | } | |
9231 | } | |
9232 | ||
9233 | if (!TARGET_CMOVE) | |
9234 | { | |
9235 | /* Try a few things more with specific constants and a variable. */ | |
9236 | ||
78a0d70c | 9237 | optab op; |
e075ae69 RH |
9238 | rtx var, orig_out, out, tmp; |
9239 | ||
9240 | if (optimize_size) | |
9241 | return 0; /* FAIL */ | |
9242 | ||
0f290768 | 9243 | /* If one of the two operands is an interesting constant, load a |
e075ae69 | 9244 | constant with the above and mask it in with a logical operation. */ |
0f290768 | 9245 | |
e075ae69 RH |
9246 | if (GET_CODE (operands[2]) == CONST_INT) |
9247 | { | |
9248 | var = operands[3]; | |
9249 | if (INTVAL (operands[2]) == 0) | |
9250 | operands[3] = constm1_rtx, op = and_optab; | |
9251 | else if (INTVAL (operands[2]) == -1) | |
9252 | operands[3] = const0_rtx, op = ior_optab; | |
78a0d70c ZW |
9253 | else |
9254 | return 0; /* FAIL */ | |
e075ae69 RH |
9255 | } |
9256 | else if (GET_CODE (operands[3]) == CONST_INT) | |
9257 | { | |
9258 | var = operands[2]; | |
9259 | if (INTVAL (operands[3]) == 0) | |
9260 | operands[2] = constm1_rtx, op = and_optab; | |
9261 | else if (INTVAL (operands[3]) == -1) | |
9262 | operands[2] = const0_rtx, op = ior_optab; | |
78a0d70c ZW |
9263 | else |
9264 | return 0; /* FAIL */ | |
e075ae69 | 9265 | } |
78a0d70c | 9266 | else |
e075ae69 RH |
9267 | return 0; /* FAIL */ |
9268 | ||
9269 | orig_out = operands[0]; | |
635559ab | 9270 | tmp = gen_reg_rtx (mode); |
e075ae69 RH |
9271 | operands[0] = tmp; |
9272 | ||
9273 | /* Recurse to get the constant loaded. */ | |
9274 | if (ix86_expand_int_movcc (operands) == 0) | |
9275 | return 0; /* FAIL */ | |
9276 | ||
9277 | /* Mask in the interesting variable. */ | |
635559ab | 9278 | out = expand_binop (mode, op, var, tmp, orig_out, 0, |
e075ae69 RH |
9279 | OPTAB_WIDEN); |
9280 | if (out != orig_out) | |
9281 | emit_move_insn (orig_out, out); | |
9282 | ||
9283 | return 1; /* DONE */ | |
9284 | } | |
9285 | ||
9286 | /* | |
9287 | * For comparison with above, | |
9288 | * | |
9289 | * movl cf,dest | |
9290 | * movl ct,tmp | |
9291 | * cmpl op1,op2 | |
9292 | * cmovcc tmp,dest | |
9293 | * | |
9294 | * Size 15. | |
9295 | */ | |
9296 | ||
635559ab JH |
9297 | if (! nonimmediate_operand (operands[2], mode)) |
9298 | operands[2] = force_reg (mode, operands[2]); | |
9299 | if (! nonimmediate_operand (operands[3], mode)) | |
9300 | operands[3] = force_reg (mode, operands[3]); | |
e075ae69 | 9301 | |
a1b8572c JH |
9302 | if (bypass_test && reg_overlap_mentioned_p (operands[0], operands[3])) |
9303 | { | |
635559ab | 9304 | rtx tmp = gen_reg_rtx (mode); |
a1b8572c JH |
9305 | emit_move_insn (tmp, operands[3]); |
9306 | operands[3] = tmp; | |
9307 | } | |
9308 | if (second_test && reg_overlap_mentioned_p (operands[0], operands[2])) | |
9309 | { | |
635559ab | 9310 | rtx tmp = gen_reg_rtx (mode); |
a1b8572c JH |
9311 | emit_move_insn (tmp, operands[2]); |
9312 | operands[2] = tmp; | |
9313 | } | |
c9682caf JH |
9314 | if (! register_operand (operands[2], VOIDmode) |
9315 | && ! register_operand (operands[3], VOIDmode)) | |
635559ab | 9316 | operands[2] = force_reg (mode, operands[2]); |
a1b8572c | 9317 | |
e075ae69 RH |
9318 | emit_insn (compare_seq); |
9319 | emit_insn (gen_rtx_SET (VOIDmode, operands[0], | |
635559ab | 9320 | gen_rtx_IF_THEN_ELSE (mode, |
e075ae69 RH |
9321 | compare_op, operands[2], |
9322 | operands[3]))); | |
a1b8572c JH |
9323 | if (bypass_test) |
9324 | emit_insn (gen_rtx_SET (VOIDmode, operands[0], | |
635559ab | 9325 | gen_rtx_IF_THEN_ELSE (mode, |
a1b8572c JH |
9326 | bypass_test, |
9327 | operands[3], | |
9328 | operands[0]))); | |
9329 | if (second_test) | |
9330 | emit_insn (gen_rtx_SET (VOIDmode, operands[0], | |
635559ab | 9331 | gen_rtx_IF_THEN_ELSE (mode, |
a1b8572c JH |
9332 | second_test, |
9333 | operands[2], | |
9334 | operands[0]))); | |
e075ae69 RH |
9335 | |
9336 | return 1; /* DONE */ | |
e9a25f70 | 9337 | } |
e075ae69 | 9338 | |
32b5b1aa | 9339 | int |
e075ae69 RH |
9340 | ix86_expand_fp_movcc (operands) |
9341 | rtx operands[]; | |
32b5b1aa | 9342 | { |
e075ae69 | 9343 | enum rtx_code code; |
e075ae69 | 9344 | rtx tmp; |
a1b8572c | 9345 | rtx compare_op, second_test, bypass_test; |
32b5b1aa | 9346 | |
0073023d JH |
9347 | /* For SF/DFmode conditional moves based on comparisons |
9348 | in same mode, we may want to use SSE min/max instructions. */ | |
965f5423 JH |
9349 | if (((TARGET_SSE_MATH && GET_MODE (operands[0]) == SFmode) |
9350 | || (TARGET_SSE2 && TARGET_SSE_MATH && GET_MODE (operands[0]) == DFmode)) | |
0073023d | 9351 | && GET_MODE (ix86_compare_op0) == GET_MODE (operands[0]) |
fa9f36a1 JH |
9352 | /* The SSE comparisons does not support the LTGT/UNEQ pair. */ |
9353 | && (!TARGET_IEEE_FP | |
9354 | || (GET_CODE (operands[1]) != LTGT && GET_CODE (operands[1]) != UNEQ)) | |
0073023d JH |
9355 | /* We may be called from the post-reload splitter. */ |
9356 | && (!REG_P (operands[0]) | |
9357 | || SSE_REG_P (operands[0]) | |
52a661a6 | 9358 | || REGNO (operands[0]) >= FIRST_PSEUDO_REGISTER)) |
0073023d JH |
9359 | { |
9360 | rtx op0 = ix86_compare_op0, op1 = ix86_compare_op1; | |
9361 | code = GET_CODE (operands[1]); | |
9362 | ||
9363 | /* See if we have (cross) match between comparison operands and | |
9364 | conditional move operands. */ | |
9365 | if (rtx_equal_p (operands[2], op1)) | |
9366 | { | |
9367 | rtx tmp = op0; | |
9368 | op0 = op1; | |
9369 | op1 = tmp; | |
9370 | code = reverse_condition_maybe_unordered (code); | |
9371 | } | |
9372 | if (rtx_equal_p (operands[2], op0) && rtx_equal_p (operands[3], op1)) | |
9373 | { | |
9374 | /* Check for min operation. */ | |
9375 | if (code == LT) | |
9376 | { | |
9377 | operands[0] = force_reg (GET_MODE (operands[0]), operands[0]); | |
9378 | if (memory_operand (op0, VOIDmode)) | |
9379 | op0 = force_reg (GET_MODE (operands[0]), op0); | |
9380 | if (GET_MODE (operands[0]) == SFmode) | |
9381 | emit_insn (gen_minsf3 (operands[0], op0, op1)); | |
9382 | else | |
9383 | emit_insn (gen_mindf3 (operands[0], op0, op1)); | |
9384 | return 1; | |
9385 | } | |
9386 | /* Check for max operation. */ | |
9387 | if (code == GT) | |
9388 | { | |
9389 | operands[0] = force_reg (GET_MODE (operands[0]), operands[0]); | |
9390 | if (memory_operand (op0, VOIDmode)) | |
9391 | op0 = force_reg (GET_MODE (operands[0]), op0); | |
9392 | if (GET_MODE (operands[0]) == SFmode) | |
9393 | emit_insn (gen_maxsf3 (operands[0], op0, op1)); | |
9394 | else | |
9395 | emit_insn (gen_maxdf3 (operands[0], op0, op1)); | |
9396 | return 1; | |
9397 | } | |
9398 | } | |
9399 | /* Manage condition to be sse_comparison_operator. In case we are | |
9400 | in non-ieee mode, try to canonicalize the destination operand | |
9401 | to be first in the comparison - this helps reload to avoid extra | |
9402 | moves. */ | |
9403 | if (!sse_comparison_operator (operands[1], VOIDmode) | |
9404 | || (rtx_equal_p (operands[0], ix86_compare_op1) && !TARGET_IEEE_FP)) | |
9405 | { | |
9406 | rtx tmp = ix86_compare_op0; | |
9407 | ix86_compare_op0 = ix86_compare_op1; | |
9408 | ix86_compare_op1 = tmp; | |
9409 | operands[1] = gen_rtx_fmt_ee (swap_condition (GET_CODE (operands[1])), | |
9410 | VOIDmode, ix86_compare_op0, | |
9411 | ix86_compare_op1); | |
9412 | } | |
9413 | /* Similary try to manage result to be first operand of conditional | |
fa9f36a1 JH |
9414 | move. We also don't support the NE comparison on SSE, so try to |
9415 | avoid it. */ | |
037f20f1 JH |
9416 | if ((rtx_equal_p (operands[0], operands[3]) |
9417 | && (!TARGET_IEEE_FP || GET_CODE (operands[1]) != EQ)) | |
9418 | || (GET_CODE (operands[1]) == NE && TARGET_IEEE_FP)) | |
0073023d JH |
9419 | { |
9420 | rtx tmp = operands[2]; | |
9421 | operands[2] = operands[3]; | |
92d0fb09 | 9422 | operands[3] = tmp; |
0073023d JH |
9423 | operands[1] = gen_rtx_fmt_ee (reverse_condition_maybe_unordered |
9424 | (GET_CODE (operands[1])), | |
9425 | VOIDmode, ix86_compare_op0, | |
9426 | ix86_compare_op1); | |
9427 | } | |
9428 | if (GET_MODE (operands[0]) == SFmode) | |
9429 | emit_insn (gen_sse_movsfcc (operands[0], operands[1], | |
9430 | operands[2], operands[3], | |
9431 | ix86_compare_op0, ix86_compare_op1)); | |
9432 | else | |
9433 | emit_insn (gen_sse_movdfcc (operands[0], operands[1], | |
9434 | operands[2], operands[3], | |
9435 | ix86_compare_op0, ix86_compare_op1)); | |
9436 | return 1; | |
9437 | } | |
9438 | ||
e075ae69 | 9439 | /* The floating point conditional move instructions don't directly |
0f290768 | 9440 | support conditions resulting from a signed integer comparison. */ |
32b5b1aa | 9441 | |
e075ae69 | 9442 | code = GET_CODE (operands[1]); |
a1b8572c | 9443 | compare_op = ix86_expand_compare (code, &second_test, &bypass_test); |
9e7adcb3 JH |
9444 | |
9445 | /* The floating point conditional move instructions don't directly | |
9446 | support signed integer comparisons. */ | |
9447 | ||
a1b8572c | 9448 | if (!fcmov_comparison_operator (compare_op, VOIDmode)) |
e075ae69 | 9449 | { |
a1b8572c | 9450 | if (second_test != NULL || bypass_test != NULL) |
b531087a | 9451 | abort (); |
e075ae69 | 9452 | tmp = gen_reg_rtx (QImode); |
3a3677ff | 9453 | ix86_expand_setcc (code, tmp); |
e075ae69 RH |
9454 | code = NE; |
9455 | ix86_compare_op0 = tmp; | |
9456 | ix86_compare_op1 = const0_rtx; | |
a1b8572c JH |
9457 | compare_op = ix86_expand_compare (code, &second_test, &bypass_test); |
9458 | } | |
9459 | if (bypass_test && reg_overlap_mentioned_p (operands[0], operands[3])) | |
9460 | { | |
9461 | tmp = gen_reg_rtx (GET_MODE (operands[0])); | |
9462 | emit_move_insn (tmp, operands[3]); | |
9463 | operands[3] = tmp; | |
9464 | } | |
9465 | if (second_test && reg_overlap_mentioned_p (operands[0], operands[2])) | |
9466 | { | |
9467 | tmp = gen_reg_rtx (GET_MODE (operands[0])); | |
9468 | emit_move_insn (tmp, operands[2]); | |
9469 | operands[2] = tmp; | |
e075ae69 | 9470 | } |
e9a25f70 | 9471 | |
e075ae69 RH |
9472 | emit_insn (gen_rtx_SET (VOIDmode, operands[0], |
9473 | gen_rtx_IF_THEN_ELSE (GET_MODE (operands[0]), | |
9e7adcb3 | 9474 | compare_op, |
e075ae69 RH |
9475 | operands[2], |
9476 | operands[3]))); | |
a1b8572c JH |
9477 | if (bypass_test) |
9478 | emit_insn (gen_rtx_SET (VOIDmode, operands[0], | |
9479 | gen_rtx_IF_THEN_ELSE (GET_MODE (operands[0]), | |
9480 | bypass_test, | |
9481 | operands[3], | |
9482 | operands[0]))); | |
9483 | if (second_test) | |
9484 | emit_insn (gen_rtx_SET (VOIDmode, operands[0], | |
9485 | gen_rtx_IF_THEN_ELSE (GET_MODE (operands[0]), | |
9486 | second_test, | |
9487 | operands[2], | |
9488 | operands[0]))); | |
32b5b1aa | 9489 | |
e075ae69 | 9490 | return 1; |
32b5b1aa SC |
9491 | } |
9492 | ||
2450a057 JH |
9493 | /* Split operands 0 and 1 into SImode parts. Similar to split_di, but |
9494 | works for floating pointer parameters and nonoffsetable memories. | |
9495 | For pushes, it returns just stack offsets; the values will be saved | |
9496 | in the right order. Maximally three parts are generated. */ | |
9497 | ||
2b589241 | 9498 | static int |
2450a057 JH |
9499 | ix86_split_to_parts (operand, parts, mode) |
9500 | rtx operand; | |
9501 | rtx *parts; | |
9502 | enum machine_mode mode; | |
32b5b1aa | 9503 | { |
26e5b205 JH |
9504 | int size; |
9505 | ||
9506 | if (!TARGET_64BIT) | |
9507 | size = mode == TFmode ? 3 : (GET_MODE_SIZE (mode) / 4); | |
9508 | else | |
9509 | size = (GET_MODE_SIZE (mode) + 4) / 8; | |
2450a057 | 9510 | |
a7180f70 BS |
9511 | if (GET_CODE (operand) == REG && MMX_REGNO_P (REGNO (operand))) |
9512 | abort (); | |
2450a057 JH |
9513 | if (size < 2 || size > 3) |
9514 | abort (); | |
9515 | ||
f996902d RH |
9516 | /* Optimize constant pool reference to immediates. This is used by fp |
9517 | moves, that force all constants to memory to allow combining. */ | |
9518 | if (GET_CODE (operand) == MEM && RTX_UNCHANGING_P (operand)) | |
9519 | { | |
9520 | rtx tmp = maybe_get_pool_constant (operand); | |
9521 | if (tmp) | |
9522 | operand = tmp; | |
9523 | } | |
d7a29404 | 9524 | |
2450a057 | 9525 | if (GET_CODE (operand) == MEM && !offsettable_memref_p (operand)) |
e075ae69 | 9526 | { |
2450a057 JH |
9527 | /* The only non-offsetable memories we handle are pushes. */ |
9528 | if (! push_operand (operand, VOIDmode)) | |
9529 | abort (); | |
9530 | ||
26e5b205 JH |
9531 | operand = copy_rtx (operand); |
9532 | PUT_MODE (operand, Pmode); | |
2450a057 JH |
9533 | parts[0] = parts[1] = parts[2] = operand; |
9534 | } | |
26e5b205 | 9535 | else if (!TARGET_64BIT) |
2450a057 JH |
9536 | { |
9537 | if (mode == DImode) | |
9538 | split_di (&operand, 1, &parts[0], &parts[1]); | |
9539 | else | |
e075ae69 | 9540 | { |
2450a057 JH |
9541 | if (REG_P (operand)) |
9542 | { | |
9543 | if (!reload_completed) | |
9544 | abort (); | |
9545 | parts[0] = gen_rtx_REG (SImode, REGNO (operand) + 0); | |
9546 | parts[1] = gen_rtx_REG (SImode, REGNO (operand) + 1); | |
9547 | if (size == 3) | |
9548 | parts[2] = gen_rtx_REG (SImode, REGNO (operand) + 2); | |
9549 | } | |
9550 | else if (offsettable_memref_p (operand)) | |
9551 | { | |
f4ef873c | 9552 | operand = adjust_address (operand, SImode, 0); |
2450a057 | 9553 | parts[0] = operand; |
b72f00af | 9554 | parts[1] = adjust_address (operand, SImode, 4); |
2450a057 | 9555 | if (size == 3) |
b72f00af | 9556 | parts[2] = adjust_address (operand, SImode, 8); |
2450a057 JH |
9557 | } |
9558 | else if (GET_CODE (operand) == CONST_DOUBLE) | |
9559 | { | |
9560 | REAL_VALUE_TYPE r; | |
2b589241 | 9561 | long l[4]; |
2450a057 JH |
9562 | |
9563 | REAL_VALUE_FROM_CONST_DOUBLE (r, operand); | |
9564 | switch (mode) | |
9565 | { | |
9566 | case XFmode: | |
2b589241 | 9567 | case TFmode: |
2450a057 | 9568 | REAL_VALUE_TO_TARGET_LONG_DOUBLE (r, l); |
d8bf17f9 | 9569 | parts[2] = gen_int_mode (l[2], SImode); |
2450a057 JH |
9570 | break; |
9571 | case DFmode: | |
9572 | REAL_VALUE_TO_TARGET_DOUBLE (r, l); | |
9573 | break; | |
9574 | default: | |
9575 | abort (); | |
9576 | } | |
d8bf17f9 LB |
9577 | parts[1] = gen_int_mode (l[1], SImode); |
9578 | parts[0] = gen_int_mode (l[0], SImode); | |
2450a057 JH |
9579 | } |
9580 | else | |
9581 | abort (); | |
e075ae69 | 9582 | } |
2450a057 | 9583 | } |
26e5b205 JH |
9584 | else |
9585 | { | |
44cf5b6a JH |
9586 | if (mode == TImode) |
9587 | split_ti (&operand, 1, &parts[0], &parts[1]); | |
26e5b205 JH |
9588 | if (mode == XFmode || mode == TFmode) |
9589 | { | |
9590 | if (REG_P (operand)) | |
9591 | { | |
9592 | if (!reload_completed) | |
9593 | abort (); | |
9594 | parts[0] = gen_rtx_REG (DImode, REGNO (operand) + 0); | |
9595 | parts[1] = gen_rtx_REG (SImode, REGNO (operand) + 1); | |
9596 | } | |
9597 | else if (offsettable_memref_p (operand)) | |
9598 | { | |
b72f00af | 9599 | operand = adjust_address (operand, DImode, 0); |
26e5b205 | 9600 | parts[0] = operand; |
b72f00af | 9601 | parts[1] = adjust_address (operand, SImode, 8); |
26e5b205 JH |
9602 | } |
9603 | else if (GET_CODE (operand) == CONST_DOUBLE) | |
9604 | { | |
9605 | REAL_VALUE_TYPE r; | |
9606 | long l[3]; | |
9607 | ||
9608 | REAL_VALUE_FROM_CONST_DOUBLE (r, operand); | |
9609 | REAL_VALUE_TO_TARGET_LONG_DOUBLE (r, l); | |
9610 | /* Do not use shift by 32 to avoid warning on 32bit systems. */ | |
9611 | if (HOST_BITS_PER_WIDE_INT >= 64) | |
523fbd9d | 9612 | parts[0] |
d8bf17f9 | 9613 | = gen_int_mode |
44cf5b6a | 9614 | ((l[0] & (((HOST_WIDE_INT) 2 << 31) - 1)) |
b531087a | 9615 | + ((((HOST_WIDE_INT) l[1]) << 31) << 1), |
d8bf17f9 | 9616 | DImode); |
26e5b205 JH |
9617 | else |
9618 | parts[0] = immed_double_const (l[0], l[1], DImode); | |
d8bf17f9 | 9619 | parts[1] = gen_int_mode (l[2], SImode); |
26e5b205 JH |
9620 | } |
9621 | else | |
9622 | abort (); | |
9623 | } | |
9624 | } | |
2450a057 | 9625 | |
2b589241 | 9626 | return size; |
2450a057 JH |
9627 | } |
9628 | ||
9629 | /* Emit insns to perform a move or push of DI, DF, and XF values. | |
9630 | Return false when normal moves are needed; true when all required | |
9631 | insns have been emitted. Operands 2-4 contain the input values | |
9632 | int the correct order; operands 5-7 contain the output values. */ | |
9633 | ||
26e5b205 JH |
9634 | void |
9635 | ix86_split_long_move (operands) | |
9636 | rtx operands[]; | |
2450a057 JH |
9637 | { |
9638 | rtx part[2][3]; | |
26e5b205 | 9639 | int nparts; |
2450a057 JH |
9640 | int push = 0; |
9641 | int collisions = 0; | |
26e5b205 JH |
9642 | enum machine_mode mode = GET_MODE (operands[0]); |
9643 | ||
9644 | /* The DFmode expanders may ask us to move double. | |
9645 | For 64bit target this is single move. By hiding the fact | |
9646 | here we simplify i386.md splitters. */ | |
9647 | if (GET_MODE_SIZE (GET_MODE (operands[0])) == 8 && TARGET_64BIT) | |
9648 | { | |
8cdfa312 RH |
9649 | /* Optimize constant pool reference to immediates. This is used by |
9650 | fp moves, that force all constants to memory to allow combining. */ | |
26e5b205 JH |
9651 | |
9652 | if (GET_CODE (operands[1]) == MEM | |
9653 | && GET_CODE (XEXP (operands[1], 0)) == SYMBOL_REF | |
9654 | && CONSTANT_POOL_ADDRESS_P (XEXP (operands[1], 0))) | |
9655 | operands[1] = get_pool_constant (XEXP (operands[1], 0)); | |
9656 | if (push_operand (operands[0], VOIDmode)) | |
b47b4f21 JH |
9657 | { |
9658 | operands[0] = copy_rtx (operands[0]); | |
9659 | PUT_MODE (operands[0], Pmode); | |
9660 | } | |
26e5b205 JH |
9661 | else |
9662 | operands[0] = gen_lowpart (DImode, operands[0]); | |
9663 | operands[1] = gen_lowpart (DImode, operands[1]); | |
9664 | emit_move_insn (operands[0], operands[1]); | |
9665 | return; | |
9666 | } | |
2450a057 | 9667 | |
2450a057 JH |
9668 | /* The only non-offsettable memory we handle is push. */ |
9669 | if (push_operand (operands[0], VOIDmode)) | |
9670 | push = 1; | |
9671 | else if (GET_CODE (operands[0]) == MEM | |
9672 | && ! offsettable_memref_p (operands[0])) | |
9673 | abort (); | |
9674 | ||
26e5b205 JH |
9675 | nparts = ix86_split_to_parts (operands[1], part[1], GET_MODE (operands[0])); |
9676 | ix86_split_to_parts (operands[0], part[0], GET_MODE (operands[0])); | |
2450a057 JH |
9677 | |
9678 | /* When emitting push, take care for source operands on the stack. */ | |
9679 | if (push && GET_CODE (operands[1]) == MEM | |
9680 | && reg_overlap_mentioned_p (stack_pointer_rtx, operands[1])) | |
9681 | { | |
26e5b205 | 9682 | if (nparts == 3) |
886cbb88 JH |
9683 | part[1][1] = change_address (part[1][1], GET_MODE (part[1][1]), |
9684 | XEXP (part[1][2], 0)); | |
9685 | part[1][0] = change_address (part[1][0], GET_MODE (part[1][0]), | |
9686 | XEXP (part[1][1], 0)); | |
2450a057 JH |
9687 | } |
9688 | ||
0f290768 | 9689 | /* We need to do copy in the right order in case an address register |
2450a057 JH |
9690 | of the source overlaps the destination. */ |
9691 | if (REG_P (part[0][0]) && GET_CODE (part[1][0]) == MEM) | |
9692 | { | |
9693 | if (reg_overlap_mentioned_p (part[0][0], XEXP (part[1][0], 0))) | |
9694 | collisions++; | |
9695 | if (reg_overlap_mentioned_p (part[0][1], XEXP (part[1][0], 0))) | |
9696 | collisions++; | |
26e5b205 | 9697 | if (nparts == 3 |
2450a057 JH |
9698 | && reg_overlap_mentioned_p (part[0][2], XEXP (part[1][0], 0))) |
9699 | collisions++; | |
9700 | ||
9701 | /* Collision in the middle part can be handled by reordering. */ | |
26e5b205 | 9702 | if (collisions == 1 && nparts == 3 |
2450a057 | 9703 | && reg_overlap_mentioned_p (part[0][1], XEXP (part[1][0], 0))) |
e075ae69 | 9704 | { |
2450a057 JH |
9705 | rtx tmp; |
9706 | tmp = part[0][1]; part[0][1] = part[0][2]; part[0][2] = tmp; | |
9707 | tmp = part[1][1]; part[1][1] = part[1][2]; part[1][2] = tmp; | |
9708 | } | |
e075ae69 | 9709 | |
2450a057 JH |
9710 | /* If there are more collisions, we can't handle it by reordering. |
9711 | Do an lea to the last part and use only one colliding move. */ | |
9712 | else if (collisions > 1) | |
9713 | { | |
9714 | collisions = 1; | |
26e5b205 | 9715 | emit_insn (gen_rtx_SET (VOIDmode, part[0][nparts - 1], |
2450a057 | 9716 | XEXP (part[1][0], 0))); |
26e5b205 JH |
9717 | part[1][0] = change_address (part[1][0], |
9718 | TARGET_64BIT ? DImode : SImode, | |
9719 | part[0][nparts - 1]); | |
b72f00af | 9720 | part[1][1] = adjust_address (part[1][0], VOIDmode, UNITS_PER_WORD); |
26e5b205 | 9721 | if (nparts == 3) |
b72f00af | 9722 | part[1][2] = adjust_address (part[1][0], VOIDmode, 8); |
2450a057 JH |
9723 | } |
9724 | } | |
9725 | ||
9726 | if (push) | |
9727 | { | |
26e5b205 | 9728 | if (!TARGET_64BIT) |
2b589241 | 9729 | { |
26e5b205 JH |
9730 | if (nparts == 3) |
9731 | { | |
9732 | /* We use only first 12 bytes of TFmode value, but for pushing we | |
9733 | are required to adjust stack as if we were pushing real 16byte | |
9734 | value. */ | |
9735 | if (mode == TFmode && !TARGET_64BIT) | |
9736 | emit_insn (gen_addsi3 (stack_pointer_rtx, stack_pointer_rtx, | |
9737 | GEN_INT (-4))); | |
9738 | emit_move_insn (part[0][2], part[1][2]); | |
9739 | } | |
2b589241 | 9740 | } |
26e5b205 JH |
9741 | else |
9742 | { | |
9743 | /* In 64bit mode we don't have 32bit push available. In case this is | |
9744 | register, it is OK - we will just use larger counterpart. We also | |
9745 | retype memory - these comes from attempt to avoid REX prefix on | |
9746 | moving of second half of TFmode value. */ | |
9747 | if (GET_MODE (part[1][1]) == SImode) | |
9748 | { | |
9749 | if (GET_CODE (part[1][1]) == MEM) | |
f4ef873c | 9750 | part[1][1] = adjust_address (part[1][1], DImode, 0); |
26e5b205 JH |
9751 | else if (REG_P (part[1][1])) |
9752 | part[1][1] = gen_rtx_REG (DImode, REGNO (part[1][1])); | |
9753 | else | |
b531087a | 9754 | abort (); |
886cbb88 JH |
9755 | if (GET_MODE (part[1][0]) == SImode) |
9756 | part[1][0] = part[1][1]; | |
26e5b205 JH |
9757 | } |
9758 | } | |
9759 | emit_move_insn (part[0][1], part[1][1]); | |
9760 | emit_move_insn (part[0][0], part[1][0]); | |
9761 | return; | |
2450a057 JH |
9762 | } |
9763 | ||
9764 | /* Choose correct order to not overwrite the source before it is copied. */ | |
9765 | if ((REG_P (part[0][0]) | |
9766 | && REG_P (part[1][1]) | |
9767 | && (REGNO (part[0][0]) == REGNO (part[1][1]) | |
26e5b205 | 9768 | || (nparts == 3 |
2450a057 JH |
9769 | && REGNO (part[0][0]) == REGNO (part[1][2])))) |
9770 | || (collisions > 0 | |
9771 | && reg_overlap_mentioned_p (part[0][0], XEXP (part[1][0], 0)))) | |
9772 | { | |
26e5b205 | 9773 | if (nparts == 3) |
2450a057 | 9774 | { |
26e5b205 JH |
9775 | operands[2] = part[0][2]; |
9776 | operands[3] = part[0][1]; | |
9777 | operands[4] = part[0][0]; | |
9778 | operands[5] = part[1][2]; | |
9779 | operands[6] = part[1][1]; | |
9780 | operands[7] = part[1][0]; | |
2450a057 JH |
9781 | } |
9782 | else | |
9783 | { | |
26e5b205 JH |
9784 | operands[2] = part[0][1]; |
9785 | operands[3] = part[0][0]; | |
9786 | operands[5] = part[1][1]; | |
9787 | operands[6] = part[1][0]; | |
2450a057 JH |
9788 | } |
9789 | } | |
9790 | else | |
9791 | { | |
26e5b205 | 9792 | if (nparts == 3) |
2450a057 | 9793 | { |
26e5b205 JH |
9794 | operands[2] = part[0][0]; |
9795 | operands[3] = part[0][1]; | |
9796 | operands[4] = part[0][2]; | |
9797 | operands[5] = part[1][0]; | |
9798 | operands[6] = part[1][1]; | |
9799 | operands[7] = part[1][2]; | |
2450a057 JH |
9800 | } |
9801 | else | |
9802 | { | |
26e5b205 JH |
9803 | operands[2] = part[0][0]; |
9804 | operands[3] = part[0][1]; | |
9805 | operands[5] = part[1][0]; | |
9806 | operands[6] = part[1][1]; | |
e075ae69 RH |
9807 | } |
9808 | } | |
26e5b205 JH |
9809 | emit_move_insn (operands[2], operands[5]); |
9810 | emit_move_insn (operands[3], operands[6]); | |
9811 | if (nparts == 3) | |
9812 | emit_move_insn (operands[4], operands[7]); | |
32b5b1aa | 9813 | |
26e5b205 | 9814 | return; |
32b5b1aa | 9815 | } |
32b5b1aa | 9816 | |
e075ae69 RH |
9817 | void |
9818 | ix86_split_ashldi (operands, scratch) | |
9819 | rtx *operands, scratch; | |
32b5b1aa | 9820 | { |
e075ae69 RH |
9821 | rtx low[2], high[2]; |
9822 | int count; | |
b985a30f | 9823 | |
e075ae69 RH |
9824 | if (GET_CODE (operands[2]) == CONST_INT) |
9825 | { | |
9826 | split_di (operands, 2, low, high); | |
9827 | count = INTVAL (operands[2]) & 63; | |
32b5b1aa | 9828 | |
e075ae69 RH |
9829 | if (count >= 32) |
9830 | { | |
9831 | emit_move_insn (high[0], low[1]); | |
9832 | emit_move_insn (low[0], const0_rtx); | |
b985a30f | 9833 | |
e075ae69 RH |
9834 | if (count > 32) |
9835 | emit_insn (gen_ashlsi3 (high[0], high[0], GEN_INT (count - 32))); | |
9836 | } | |
9837 | else | |
9838 | { | |
9839 | if (!rtx_equal_p (operands[0], operands[1])) | |
9840 | emit_move_insn (operands[0], operands[1]); | |
9841 | emit_insn (gen_x86_shld_1 (high[0], low[0], GEN_INT (count))); | |
9842 | emit_insn (gen_ashlsi3 (low[0], low[0], GEN_INT (count))); | |
9843 | } | |
9844 | } | |
9845 | else | |
9846 | { | |
9847 | if (!rtx_equal_p (operands[0], operands[1])) | |
9848 | emit_move_insn (operands[0], operands[1]); | |
b985a30f | 9849 | |
e075ae69 | 9850 | split_di (operands, 1, low, high); |
b985a30f | 9851 | |
e075ae69 RH |
9852 | emit_insn (gen_x86_shld_1 (high[0], low[0], operands[2])); |
9853 | emit_insn (gen_ashlsi3 (low[0], low[0], operands[2])); | |
32b5b1aa | 9854 | |
fe577e58 | 9855 | if (TARGET_CMOVE && (! no_new_pseudos || scratch)) |
e075ae69 | 9856 | { |
fe577e58 | 9857 | if (! no_new_pseudos) |
e075ae69 RH |
9858 | scratch = force_reg (SImode, const0_rtx); |
9859 | else | |
9860 | emit_move_insn (scratch, const0_rtx); | |
9861 | ||
9862 | emit_insn (gen_x86_shift_adj_1 (high[0], low[0], operands[2], | |
9863 | scratch)); | |
9864 | } | |
9865 | else | |
9866 | emit_insn (gen_x86_shift_adj_2 (high[0], low[0], operands[2])); | |
9867 | } | |
e9a25f70 | 9868 | } |
32b5b1aa | 9869 | |
e075ae69 RH |
9870 | void |
9871 | ix86_split_ashrdi (operands, scratch) | |
9872 | rtx *operands, scratch; | |
32b5b1aa | 9873 | { |
e075ae69 RH |
9874 | rtx low[2], high[2]; |
9875 | int count; | |
32b5b1aa | 9876 | |
e075ae69 RH |
9877 | if (GET_CODE (operands[2]) == CONST_INT) |
9878 | { | |
9879 | split_di (operands, 2, low, high); | |
9880 | count = INTVAL (operands[2]) & 63; | |
32b5b1aa | 9881 | |
e075ae69 RH |
9882 | if (count >= 32) |
9883 | { | |
9884 | emit_move_insn (low[0], high[1]); | |
32b5b1aa | 9885 | |
e075ae69 RH |
9886 | if (! reload_completed) |
9887 | emit_insn (gen_ashrsi3 (high[0], low[0], GEN_INT (31))); | |
9888 | else | |
9889 | { | |
9890 | emit_move_insn (high[0], low[0]); | |
9891 | emit_insn (gen_ashrsi3 (high[0], high[0], GEN_INT (31))); | |
9892 | } | |
9893 | ||
9894 | if (count > 32) | |
9895 | emit_insn (gen_ashrsi3 (low[0], low[0], GEN_INT (count - 32))); | |
9896 | } | |
9897 | else | |
9898 | { | |
9899 | if (!rtx_equal_p (operands[0], operands[1])) | |
9900 | emit_move_insn (operands[0], operands[1]); | |
9901 | emit_insn (gen_x86_shrd_1 (low[0], high[0], GEN_INT (count))); | |
9902 | emit_insn (gen_ashrsi3 (high[0], high[0], GEN_INT (count))); | |
9903 | } | |
9904 | } | |
9905 | else | |
32b5b1aa | 9906 | { |
e075ae69 RH |
9907 | if (!rtx_equal_p (operands[0], operands[1])) |
9908 | emit_move_insn (operands[0], operands[1]); | |
9909 | ||
9910 | split_di (operands, 1, low, high); | |
9911 | ||
9912 | emit_insn (gen_x86_shrd_1 (low[0], high[0], operands[2])); | |
9913 | emit_insn (gen_ashrsi3 (high[0], high[0], operands[2])); | |
9914 | ||
fe577e58 | 9915 | if (TARGET_CMOVE && (! no_new_pseudos || scratch)) |
e075ae69 | 9916 | { |
fe577e58 | 9917 | if (! no_new_pseudos) |
e075ae69 RH |
9918 | scratch = gen_reg_rtx (SImode); |
9919 | emit_move_insn (scratch, high[0]); | |
9920 | emit_insn (gen_ashrsi3 (scratch, scratch, GEN_INT (31))); | |
9921 | emit_insn (gen_x86_shift_adj_1 (low[0], high[0], operands[2], | |
9922 | scratch)); | |
9923 | } | |
9924 | else | |
9925 | emit_insn (gen_x86_shift_adj_3 (low[0], high[0], operands[2])); | |
32b5b1aa | 9926 | } |
e075ae69 | 9927 | } |
32b5b1aa | 9928 | |
e075ae69 RH |
9929 | void |
9930 | ix86_split_lshrdi (operands, scratch) | |
9931 | rtx *operands, scratch; | |
9932 | { | |
9933 | rtx low[2], high[2]; | |
9934 | int count; | |
32b5b1aa | 9935 | |
e075ae69 | 9936 | if (GET_CODE (operands[2]) == CONST_INT) |
32b5b1aa | 9937 | { |
e075ae69 RH |
9938 | split_di (operands, 2, low, high); |
9939 | count = INTVAL (operands[2]) & 63; | |
9940 | ||
9941 | if (count >= 32) | |
c7271385 | 9942 | { |
e075ae69 RH |
9943 | emit_move_insn (low[0], high[1]); |
9944 | emit_move_insn (high[0], const0_rtx); | |
32b5b1aa | 9945 | |
e075ae69 RH |
9946 | if (count > 32) |
9947 | emit_insn (gen_lshrsi3 (low[0], low[0], GEN_INT (count - 32))); | |
9948 | } | |
9949 | else | |
9950 | { | |
9951 | if (!rtx_equal_p (operands[0], operands[1])) | |
9952 | emit_move_insn (operands[0], operands[1]); | |
9953 | emit_insn (gen_x86_shrd_1 (low[0], high[0], GEN_INT (count))); | |
9954 | emit_insn (gen_lshrsi3 (high[0], high[0], GEN_INT (count))); | |
9955 | } | |
32b5b1aa | 9956 | } |
e075ae69 RH |
9957 | else |
9958 | { | |
9959 | if (!rtx_equal_p (operands[0], operands[1])) | |
9960 | emit_move_insn (operands[0], operands[1]); | |
32b5b1aa | 9961 | |
e075ae69 RH |
9962 | split_di (operands, 1, low, high); |
9963 | ||
9964 | emit_insn (gen_x86_shrd_1 (low[0], high[0], operands[2])); | |
9965 | emit_insn (gen_lshrsi3 (high[0], high[0], operands[2])); | |
9966 | ||
9967 | /* Heh. By reversing the arguments, we can reuse this pattern. */ | |
fe577e58 | 9968 | if (TARGET_CMOVE && (! no_new_pseudos || scratch)) |
e075ae69 | 9969 | { |
fe577e58 | 9970 | if (! no_new_pseudos) |
e075ae69 RH |
9971 | scratch = force_reg (SImode, const0_rtx); |
9972 | else | |
9973 | emit_move_insn (scratch, const0_rtx); | |
9974 | ||
9975 | emit_insn (gen_x86_shift_adj_1 (low[0], high[0], operands[2], | |
9976 | scratch)); | |
9977 | } | |
9978 | else | |
9979 | emit_insn (gen_x86_shift_adj_2 (low[0], high[0], operands[2])); | |
9980 | } | |
32b5b1aa | 9981 | } |
3f803cd9 | 9982 | |
0407c02b | 9983 | /* Helper function for the string operations below. Dest VARIABLE whether |
0945b39d JH |
9984 | it is aligned to VALUE bytes. If true, jump to the label. */ |
9985 | static rtx | |
9986 | ix86_expand_aligntest (variable, value) | |
9987 | rtx variable; | |
9988 | int value; | |
9989 | { | |
9990 | rtx label = gen_label_rtx (); | |
9991 | rtx tmpcount = gen_reg_rtx (GET_MODE (variable)); | |
9992 | if (GET_MODE (variable) == DImode) | |
9993 | emit_insn (gen_anddi3 (tmpcount, variable, GEN_INT (value))); | |
9994 | else | |
9995 | emit_insn (gen_andsi3 (tmpcount, variable, GEN_INT (value))); | |
9996 | emit_cmp_and_jump_insns (tmpcount, const0_rtx, EQ, 0, GET_MODE (variable), | |
d43e0b7d | 9997 | 1, label); |
0945b39d JH |
9998 | return label; |
9999 | } | |
10000 | ||
10001 | /* Adjust COUNTER by the VALUE. */ | |
10002 | static void | |
10003 | ix86_adjust_counter (countreg, value) | |
10004 | rtx countreg; | |
10005 | HOST_WIDE_INT value; | |
10006 | { | |
10007 | if (GET_MODE (countreg) == DImode) | |
10008 | emit_insn (gen_adddi3 (countreg, countreg, GEN_INT (-value))); | |
10009 | else | |
10010 | emit_insn (gen_addsi3 (countreg, countreg, GEN_INT (-value))); | |
10011 | } | |
10012 | ||
10013 | /* Zero extend possibly SImode EXP to Pmode register. */ | |
d24b3457 | 10014 | rtx |
0945b39d JH |
10015 | ix86_zero_extend_to_Pmode (exp) |
10016 | rtx exp; | |
10017 | { | |
10018 | rtx r; | |
10019 | if (GET_MODE (exp) == VOIDmode) | |
10020 | return force_reg (Pmode, exp); | |
10021 | if (GET_MODE (exp) == Pmode) | |
10022 | return copy_to_mode_reg (Pmode, exp); | |
10023 | r = gen_reg_rtx (Pmode); | |
10024 | emit_insn (gen_zero_extendsidi2 (r, exp)); | |
10025 | return r; | |
10026 | } | |
10027 | ||
10028 | /* Expand string move (memcpy) operation. Use i386 string operations when | |
10029 | profitable. expand_clrstr contains similar code. */ | |
10030 | int | |
10031 | ix86_expand_movstr (dst, src, count_exp, align_exp) | |
10032 | rtx dst, src, count_exp, align_exp; | |
10033 | { | |
10034 | rtx srcreg, destreg, countreg; | |
10035 | enum machine_mode counter_mode; | |
10036 | HOST_WIDE_INT align = 0; | |
10037 | unsigned HOST_WIDE_INT count = 0; | |
10038 | rtx insns; | |
10039 | ||
10040 | start_sequence (); | |
10041 | ||
10042 | if (GET_CODE (align_exp) == CONST_INT) | |
10043 | align = INTVAL (align_exp); | |
10044 | ||
5519a4f9 | 10045 | /* This simple hack avoids all inlining code and simplifies code below. */ |
0945b39d JH |
10046 | if (!TARGET_ALIGN_STRINGOPS) |
10047 | align = 64; | |
10048 | ||
10049 | if (GET_CODE (count_exp) == CONST_INT) | |
10050 | count = INTVAL (count_exp); | |
10051 | ||
10052 | /* Figure out proper mode for counter. For 32bits it is always SImode, | |
10053 | for 64bits use SImode when possible, otherwise DImode. | |
10054 | Set count to number of bytes copied when known at compile time. */ | |
10055 | if (!TARGET_64BIT || GET_MODE (count_exp) == SImode | |
10056 | || x86_64_zero_extended_value (count_exp)) | |
10057 | counter_mode = SImode; | |
10058 | else | |
10059 | counter_mode = DImode; | |
10060 | ||
10061 | if (counter_mode != SImode && counter_mode != DImode) | |
10062 | abort (); | |
10063 | ||
10064 | destreg = copy_to_mode_reg (Pmode, XEXP (dst, 0)); | |
10065 | srcreg = copy_to_mode_reg (Pmode, XEXP (src, 0)); | |
10066 | ||
10067 | emit_insn (gen_cld ()); | |
10068 | ||
10069 | /* When optimizing for size emit simple rep ; movsb instruction for | |
10070 | counts not divisible by 4. */ | |
10071 | ||
10072 | if ((!optimize || optimize_size) && (count == 0 || (count & 0x03))) | |
10073 | { | |
10074 | countreg = ix86_zero_extend_to_Pmode (count_exp); | |
10075 | if (TARGET_64BIT) | |
10076 | emit_insn (gen_rep_movqi_rex64 (destreg, srcreg, countreg, | |
10077 | destreg, srcreg, countreg)); | |
10078 | else | |
10079 | emit_insn (gen_rep_movqi (destreg, srcreg, countreg, | |
10080 | destreg, srcreg, countreg)); | |
10081 | } | |
10082 | ||
10083 | /* For constant aligned (or small unaligned) copies use rep movsl | |
10084 | followed by code copying the rest. For PentiumPro ensure 8 byte | |
10085 | alignment to allow rep movsl acceleration. */ | |
10086 | ||
10087 | else if (count != 0 | |
10088 | && (align >= 8 | |
10089 | || (!TARGET_PENTIUMPRO && !TARGET_64BIT && align >= 4) | |
b531087a | 10090 | || optimize_size || count < (unsigned int) 64)) |
0945b39d JH |
10091 | { |
10092 | int size = TARGET_64BIT && !optimize_size ? 8 : 4; | |
10093 | if (count & ~(size - 1)) | |
10094 | { | |
10095 | countreg = copy_to_mode_reg (counter_mode, | |
10096 | GEN_INT ((count >> (size == 4 ? 2 : 3)) | |
10097 | & (TARGET_64BIT ? -1 : 0x3fffffff))); | |
10098 | countreg = ix86_zero_extend_to_Pmode (countreg); | |
10099 | if (size == 4) | |
10100 | { | |
10101 | if (TARGET_64BIT) | |
10102 | emit_insn (gen_rep_movsi_rex64 (destreg, srcreg, countreg, | |
10103 | destreg, srcreg, countreg)); | |
10104 | else | |
10105 | emit_insn (gen_rep_movsi (destreg, srcreg, countreg, | |
10106 | destreg, srcreg, countreg)); | |
10107 | } | |
10108 | else | |
10109 | emit_insn (gen_rep_movdi_rex64 (destreg, srcreg, countreg, | |
10110 | destreg, srcreg, countreg)); | |
10111 | } | |
10112 | if (size == 8 && (count & 0x04)) | |
10113 | emit_insn (gen_strmovsi (destreg, srcreg)); | |
10114 | if (count & 0x02) | |
10115 | emit_insn (gen_strmovhi (destreg, srcreg)); | |
10116 | if (count & 0x01) | |
10117 | emit_insn (gen_strmovqi (destreg, srcreg)); | |
10118 | } | |
10119 | /* The generic code based on the glibc implementation: | |
10120 | - align destination to 4 bytes (8 byte alignment is used for PentiumPro | |
10121 | allowing accelerated copying there) | |
10122 | - copy the data using rep movsl | |
10123 | - copy the rest. */ | |
10124 | else | |
10125 | { | |
10126 | rtx countreg2; | |
10127 | rtx label = NULL; | |
37ad04a5 JH |
10128 | int desired_alignment = (TARGET_PENTIUMPRO |
10129 | && (count == 0 || count >= (unsigned int) 260) | |
10130 | ? 8 : UNITS_PER_WORD); | |
0945b39d JH |
10131 | |
10132 | /* In case we don't know anything about the alignment, default to | |
10133 | library version, since it is usually equally fast and result in | |
10134 | shorter code. */ | |
10135 | if (!TARGET_INLINE_ALL_STRINGOPS && align < UNITS_PER_WORD) | |
10136 | { | |
10137 | end_sequence (); | |
10138 | return 0; | |
10139 | } | |
10140 | ||
10141 | if (TARGET_SINGLE_STRINGOP) | |
10142 | emit_insn (gen_cld ()); | |
10143 | ||
10144 | countreg2 = gen_reg_rtx (Pmode); | |
10145 | countreg = copy_to_mode_reg (counter_mode, count_exp); | |
10146 | ||
10147 | /* We don't use loops to align destination and to copy parts smaller | |
10148 | than 4 bytes, because gcc is able to optimize such code better (in | |
10149 | the case the destination or the count really is aligned, gcc is often | |
10150 | able to predict the branches) and also it is friendlier to the | |
a4f31c00 | 10151 | hardware branch prediction. |
0945b39d JH |
10152 | |
10153 | Using loops is benefical for generic case, because we can | |
10154 | handle small counts using the loops. Many CPUs (such as Athlon) | |
10155 | have large REP prefix setup costs. | |
10156 | ||
10157 | This is quite costy. Maybe we can revisit this decision later or | |
10158 | add some customizability to this code. */ | |
10159 | ||
37ad04a5 | 10160 | if (count == 0 && align < desired_alignment) |
0945b39d JH |
10161 | { |
10162 | label = gen_label_rtx (); | |
aaae0bb9 | 10163 | emit_cmp_and_jump_insns (countreg, GEN_INT (desired_alignment - 1), |
d43e0b7d | 10164 | LEU, 0, counter_mode, 1, label); |
0945b39d JH |
10165 | } |
10166 | if (align <= 1) | |
10167 | { | |
10168 | rtx label = ix86_expand_aligntest (destreg, 1); | |
10169 | emit_insn (gen_strmovqi (destreg, srcreg)); | |
10170 | ix86_adjust_counter (countreg, 1); | |
10171 | emit_label (label); | |
10172 | LABEL_NUSES (label) = 1; | |
10173 | } | |
10174 | if (align <= 2) | |
10175 | { | |
10176 | rtx label = ix86_expand_aligntest (destreg, 2); | |
10177 | emit_insn (gen_strmovhi (destreg, srcreg)); | |
10178 | ix86_adjust_counter (countreg, 2); | |
10179 | emit_label (label); | |
10180 | LABEL_NUSES (label) = 1; | |
10181 | } | |
37ad04a5 | 10182 | if (align <= 4 && desired_alignment > 4) |
0945b39d JH |
10183 | { |
10184 | rtx label = ix86_expand_aligntest (destreg, 4); | |
10185 | emit_insn (gen_strmovsi (destreg, srcreg)); | |
10186 | ix86_adjust_counter (countreg, 4); | |
10187 | emit_label (label); | |
10188 | LABEL_NUSES (label) = 1; | |
10189 | } | |
10190 | ||
37ad04a5 JH |
10191 | if (label && desired_alignment > 4 && !TARGET_64BIT) |
10192 | { | |
10193 | emit_label (label); | |
10194 | LABEL_NUSES (label) = 1; | |
10195 | label = NULL_RTX; | |
10196 | } | |
0945b39d JH |
10197 | if (!TARGET_SINGLE_STRINGOP) |
10198 | emit_insn (gen_cld ()); | |
10199 | if (TARGET_64BIT) | |
10200 | { | |
10201 | emit_insn (gen_lshrdi3 (countreg2, ix86_zero_extend_to_Pmode (countreg), | |
10202 | GEN_INT (3))); | |
10203 | emit_insn (gen_rep_movdi_rex64 (destreg, srcreg, countreg2, | |
10204 | destreg, srcreg, countreg2)); | |
10205 | } | |
10206 | else | |
10207 | { | |
10208 | emit_insn (gen_lshrsi3 (countreg2, countreg, GEN_INT (2))); | |
10209 | emit_insn (gen_rep_movsi (destreg, srcreg, countreg2, | |
10210 | destreg, srcreg, countreg2)); | |
10211 | } | |
10212 | ||
10213 | if (label) | |
10214 | { | |
10215 | emit_label (label); | |
10216 | LABEL_NUSES (label) = 1; | |
10217 | } | |
10218 | if (TARGET_64BIT && align > 4 && count != 0 && (count & 4)) | |
10219 | emit_insn (gen_strmovsi (destreg, srcreg)); | |
10220 | if ((align <= 4 || count == 0) && TARGET_64BIT) | |
10221 | { | |
10222 | rtx label = ix86_expand_aligntest (countreg, 4); | |
10223 | emit_insn (gen_strmovsi (destreg, srcreg)); | |
10224 | emit_label (label); | |
10225 | LABEL_NUSES (label) = 1; | |
10226 | } | |
10227 | if (align > 2 && count != 0 && (count & 2)) | |
10228 | emit_insn (gen_strmovhi (destreg, srcreg)); | |
10229 | if (align <= 2 || count == 0) | |
10230 | { | |
10231 | rtx label = ix86_expand_aligntest (countreg, 2); | |
10232 | emit_insn (gen_strmovhi (destreg, srcreg)); | |
10233 | emit_label (label); | |
10234 | LABEL_NUSES (label) = 1; | |
10235 | } | |
10236 | if (align > 1 && count != 0 && (count & 1)) | |
10237 | emit_insn (gen_strmovqi (destreg, srcreg)); | |
10238 | if (align <= 1 || count == 0) | |
10239 | { | |
10240 | rtx label = ix86_expand_aligntest (countreg, 1); | |
10241 | emit_insn (gen_strmovqi (destreg, srcreg)); | |
10242 | emit_label (label); | |
10243 | LABEL_NUSES (label) = 1; | |
10244 | } | |
10245 | } | |
10246 | ||
10247 | insns = get_insns (); | |
10248 | end_sequence (); | |
10249 | ||
10250 | ix86_set_move_mem_attrs (insns, dst, src, destreg, srcreg); | |
2f937369 | 10251 | emit_insn (insns); |
0945b39d JH |
10252 | return 1; |
10253 | } | |
10254 | ||
10255 | /* Expand string clear operation (bzero). Use i386 string operations when | |
10256 | profitable. expand_movstr contains similar code. */ | |
10257 | int | |
10258 | ix86_expand_clrstr (src, count_exp, align_exp) | |
10259 | rtx src, count_exp, align_exp; | |
10260 | { | |
10261 | rtx destreg, zeroreg, countreg; | |
10262 | enum machine_mode counter_mode; | |
10263 | HOST_WIDE_INT align = 0; | |
10264 | unsigned HOST_WIDE_INT count = 0; | |
10265 | ||
10266 | if (GET_CODE (align_exp) == CONST_INT) | |
10267 | align = INTVAL (align_exp); | |
10268 | ||
5519a4f9 | 10269 | /* This simple hack avoids all inlining code and simplifies code below. */ |
0945b39d JH |
10270 | if (!TARGET_ALIGN_STRINGOPS) |
10271 | align = 32; | |
10272 | ||
10273 | if (GET_CODE (count_exp) == CONST_INT) | |
10274 | count = INTVAL (count_exp); | |
10275 | /* Figure out proper mode for counter. For 32bits it is always SImode, | |
10276 | for 64bits use SImode when possible, otherwise DImode. | |
10277 | Set count to number of bytes copied when known at compile time. */ | |
10278 | if (!TARGET_64BIT || GET_MODE (count_exp) == SImode | |
10279 | || x86_64_zero_extended_value (count_exp)) | |
10280 | counter_mode = SImode; | |
10281 | else | |
10282 | counter_mode = DImode; | |
10283 | ||
10284 | destreg = copy_to_mode_reg (Pmode, XEXP (src, 0)); | |
10285 | ||
10286 | emit_insn (gen_cld ()); | |
10287 | ||
10288 | /* When optimizing for size emit simple rep ; movsb instruction for | |
10289 | counts not divisible by 4. */ | |
10290 | ||
10291 | if ((!optimize || optimize_size) && (count == 0 || (count & 0x03))) | |
10292 | { | |
10293 | countreg = ix86_zero_extend_to_Pmode (count_exp); | |
10294 | zeroreg = copy_to_mode_reg (QImode, const0_rtx); | |
10295 | if (TARGET_64BIT) | |
10296 | emit_insn (gen_rep_stosqi_rex64 (destreg, countreg, zeroreg, | |
10297 | destreg, countreg)); | |
10298 | else | |
10299 | emit_insn (gen_rep_stosqi (destreg, countreg, zeroreg, | |
10300 | destreg, countreg)); | |
10301 | } | |
10302 | else if (count != 0 | |
10303 | && (align >= 8 | |
10304 | || (!TARGET_PENTIUMPRO && !TARGET_64BIT && align >= 4) | |
b531087a | 10305 | || optimize_size || count < (unsigned int) 64)) |
0945b39d JH |
10306 | { |
10307 | int size = TARGET_64BIT && !optimize_size ? 8 : 4; | |
10308 | zeroreg = copy_to_mode_reg (size == 4 ? SImode : DImode, const0_rtx); | |
10309 | if (count & ~(size - 1)) | |
10310 | { | |
10311 | countreg = copy_to_mode_reg (counter_mode, | |
10312 | GEN_INT ((count >> (size == 4 ? 2 : 3)) | |
10313 | & (TARGET_64BIT ? -1 : 0x3fffffff))); | |
10314 | countreg = ix86_zero_extend_to_Pmode (countreg); | |
10315 | if (size == 4) | |
10316 | { | |
10317 | if (TARGET_64BIT) | |
10318 | emit_insn (gen_rep_stossi_rex64 (destreg, countreg, zeroreg, | |
10319 | destreg, countreg)); | |
10320 | else | |
10321 | emit_insn (gen_rep_stossi (destreg, countreg, zeroreg, | |
10322 | destreg, countreg)); | |
10323 | } | |
10324 | else | |
10325 | emit_insn (gen_rep_stosdi_rex64 (destreg, countreg, zeroreg, | |
10326 | destreg, countreg)); | |
10327 | } | |
10328 | if (size == 8 && (count & 0x04)) | |
10329 | emit_insn (gen_strsetsi (destreg, | |
10330 | gen_rtx_SUBREG (SImode, zeroreg, 0))); | |
10331 | if (count & 0x02) | |
10332 | emit_insn (gen_strsethi (destreg, | |
10333 | gen_rtx_SUBREG (HImode, zeroreg, 0))); | |
10334 | if (count & 0x01) | |
10335 | emit_insn (gen_strsetqi (destreg, | |
10336 | gen_rtx_SUBREG (QImode, zeroreg, 0))); | |
10337 | } | |
10338 | else | |
10339 | { | |
10340 | rtx countreg2; | |
10341 | rtx label = NULL; | |
37ad04a5 JH |
10342 | /* Compute desired alignment of the string operation. */ |
10343 | int desired_alignment = (TARGET_PENTIUMPRO | |
10344 | && (count == 0 || count >= (unsigned int) 260) | |
10345 | ? 8 : UNITS_PER_WORD); | |
0945b39d JH |
10346 | |
10347 | /* In case we don't know anything about the alignment, default to | |
10348 | library version, since it is usually equally fast and result in | |
10349 | shorter code. */ | |
10350 | if (!TARGET_INLINE_ALL_STRINGOPS && align < UNITS_PER_WORD) | |
10351 | return 0; | |
10352 | ||
10353 | if (TARGET_SINGLE_STRINGOP) | |
10354 | emit_insn (gen_cld ()); | |
10355 | ||
10356 | countreg2 = gen_reg_rtx (Pmode); | |
10357 | countreg = copy_to_mode_reg (counter_mode, count_exp); | |
10358 | zeroreg = copy_to_mode_reg (Pmode, const0_rtx); | |
10359 | ||
37ad04a5 | 10360 | if (count == 0 && align < desired_alignment) |
0945b39d JH |
10361 | { |
10362 | label = gen_label_rtx (); | |
37ad04a5 | 10363 | emit_cmp_and_jump_insns (countreg, GEN_INT (desired_alignment - 1), |
d43e0b7d | 10364 | LEU, 0, counter_mode, 1, label); |
0945b39d JH |
10365 | } |
10366 | if (align <= 1) | |
10367 | { | |
10368 | rtx label = ix86_expand_aligntest (destreg, 1); | |
10369 | emit_insn (gen_strsetqi (destreg, | |
10370 | gen_rtx_SUBREG (QImode, zeroreg, 0))); | |
10371 | ix86_adjust_counter (countreg, 1); | |
10372 | emit_label (label); | |
10373 | LABEL_NUSES (label) = 1; | |
10374 | } | |
10375 | if (align <= 2) | |
10376 | { | |
10377 | rtx label = ix86_expand_aligntest (destreg, 2); | |
10378 | emit_insn (gen_strsethi (destreg, | |
10379 | gen_rtx_SUBREG (HImode, zeroreg, 0))); | |
10380 | ix86_adjust_counter (countreg, 2); | |
10381 | emit_label (label); | |
10382 | LABEL_NUSES (label) = 1; | |
10383 | } | |
37ad04a5 | 10384 | if (align <= 4 && desired_alignment > 4) |
0945b39d JH |
10385 | { |
10386 | rtx label = ix86_expand_aligntest (destreg, 4); | |
10387 | emit_insn (gen_strsetsi (destreg, (TARGET_64BIT | |
10388 | ? gen_rtx_SUBREG (SImode, zeroreg, 0) | |
10389 | : zeroreg))); | |
10390 | ix86_adjust_counter (countreg, 4); | |
10391 | emit_label (label); | |
10392 | LABEL_NUSES (label) = 1; | |
10393 | } | |
10394 | ||
37ad04a5 JH |
10395 | if (label && desired_alignment > 4 && !TARGET_64BIT) |
10396 | { | |
10397 | emit_label (label); | |
10398 | LABEL_NUSES (label) = 1; | |
10399 | label = NULL_RTX; | |
10400 | } | |
10401 | ||
0945b39d JH |
10402 | if (!TARGET_SINGLE_STRINGOP) |
10403 | emit_insn (gen_cld ()); | |
10404 | if (TARGET_64BIT) | |
10405 | { | |
10406 | emit_insn (gen_lshrdi3 (countreg2, ix86_zero_extend_to_Pmode (countreg), | |
10407 | GEN_INT (3))); | |
10408 | emit_insn (gen_rep_stosdi_rex64 (destreg, countreg2, zeroreg, | |
10409 | destreg, countreg2)); | |
10410 | } | |
10411 | else | |
10412 | { | |
10413 | emit_insn (gen_lshrsi3 (countreg2, countreg, GEN_INT (2))); | |
10414 | emit_insn (gen_rep_stossi (destreg, countreg2, zeroreg, | |
10415 | destreg, countreg2)); | |
10416 | } | |
0945b39d JH |
10417 | if (label) |
10418 | { | |
10419 | emit_label (label); | |
10420 | LABEL_NUSES (label) = 1; | |
10421 | } | |
37ad04a5 | 10422 | |
0945b39d JH |
10423 | if (TARGET_64BIT && align > 4 && count != 0 && (count & 4)) |
10424 | emit_insn (gen_strsetsi (destreg, | |
10425 | gen_rtx_SUBREG (SImode, zeroreg, 0))); | |
10426 | if (TARGET_64BIT && (align <= 4 || count == 0)) | |
10427 | { | |
79258dce | 10428 | rtx label = ix86_expand_aligntest (countreg, 4); |
0945b39d JH |
10429 | emit_insn (gen_strsetsi (destreg, |
10430 | gen_rtx_SUBREG (SImode, zeroreg, 0))); | |
10431 | emit_label (label); | |
10432 | LABEL_NUSES (label) = 1; | |
10433 | } | |
10434 | if (align > 2 && count != 0 && (count & 2)) | |
10435 | emit_insn (gen_strsethi (destreg, | |
10436 | gen_rtx_SUBREG (HImode, zeroreg, 0))); | |
10437 | if (align <= 2 || count == 0) | |
10438 | { | |
74411039 | 10439 | rtx label = ix86_expand_aligntest (countreg, 2); |
0945b39d JH |
10440 | emit_insn (gen_strsethi (destreg, |
10441 | gen_rtx_SUBREG (HImode, zeroreg, 0))); | |
10442 | emit_label (label); | |
10443 | LABEL_NUSES (label) = 1; | |
10444 | } | |
10445 | if (align > 1 && count != 0 && (count & 1)) | |
10446 | emit_insn (gen_strsetqi (destreg, | |
10447 | gen_rtx_SUBREG (QImode, zeroreg, 0))); | |
10448 | if (align <= 1 || count == 0) | |
10449 | { | |
74411039 | 10450 | rtx label = ix86_expand_aligntest (countreg, 1); |
0945b39d JH |
10451 | emit_insn (gen_strsetqi (destreg, |
10452 | gen_rtx_SUBREG (QImode, zeroreg, 0))); | |
10453 | emit_label (label); | |
10454 | LABEL_NUSES (label) = 1; | |
10455 | } | |
10456 | } | |
10457 | return 1; | |
10458 | } | |
10459 | /* Expand strlen. */ | |
10460 | int | |
10461 | ix86_expand_strlen (out, src, eoschar, align) | |
10462 | rtx out, src, eoschar, align; | |
10463 | { | |
10464 | rtx addr, scratch1, scratch2, scratch3, scratch4; | |
10465 | ||
10466 | /* The generic case of strlen expander is long. Avoid it's | |
10467 | expanding unless TARGET_INLINE_ALL_STRINGOPS. */ | |
10468 | ||
10469 | if (TARGET_UNROLL_STRLEN && eoschar == const0_rtx && optimize > 1 | |
10470 | && !TARGET_INLINE_ALL_STRINGOPS | |
10471 | && !optimize_size | |
10472 | && (GET_CODE (align) != CONST_INT || INTVAL (align) < 4)) | |
10473 | return 0; | |
10474 | ||
10475 | addr = force_reg (Pmode, XEXP (src, 0)); | |
10476 | scratch1 = gen_reg_rtx (Pmode); | |
10477 | ||
10478 | if (TARGET_UNROLL_STRLEN && eoschar == const0_rtx && optimize > 1 | |
10479 | && !optimize_size) | |
10480 | { | |
10481 | /* Well it seems that some optimizer does not combine a call like | |
10482 | foo(strlen(bar), strlen(bar)); | |
10483 | when the move and the subtraction is done here. It does calculate | |
10484 | the length just once when these instructions are done inside of | |
10485 | output_strlen_unroll(). But I think since &bar[strlen(bar)] is | |
10486 | often used and I use one fewer register for the lifetime of | |
10487 | output_strlen_unroll() this is better. */ | |
10488 | ||
10489 | emit_move_insn (out, addr); | |
10490 | ||
10491 | ix86_expand_strlensi_unroll_1 (out, align); | |
10492 | ||
10493 | /* strlensi_unroll_1 returns the address of the zero at the end of | |
10494 | the string, like memchr(), so compute the length by subtracting | |
10495 | the start address. */ | |
10496 | if (TARGET_64BIT) | |
10497 | emit_insn (gen_subdi3 (out, out, addr)); | |
10498 | else | |
10499 | emit_insn (gen_subsi3 (out, out, addr)); | |
10500 | } | |
10501 | else | |
10502 | { | |
10503 | scratch2 = gen_reg_rtx (Pmode); | |
10504 | scratch3 = gen_reg_rtx (Pmode); | |
10505 | scratch4 = force_reg (Pmode, constm1_rtx); | |
10506 | ||
10507 | emit_move_insn (scratch3, addr); | |
10508 | eoschar = force_reg (QImode, eoschar); | |
10509 | ||
10510 | emit_insn (gen_cld ()); | |
10511 | if (TARGET_64BIT) | |
10512 | { | |
10513 | emit_insn (gen_strlenqi_rex_1 (scratch1, scratch3, eoschar, | |
10514 | align, scratch4, scratch3)); | |
10515 | emit_insn (gen_one_cmpldi2 (scratch2, scratch1)); | |
10516 | emit_insn (gen_adddi3 (out, scratch2, constm1_rtx)); | |
10517 | } | |
10518 | else | |
10519 | { | |
10520 | emit_insn (gen_strlenqi_1 (scratch1, scratch3, eoschar, | |
10521 | align, scratch4, scratch3)); | |
10522 | emit_insn (gen_one_cmplsi2 (scratch2, scratch1)); | |
10523 | emit_insn (gen_addsi3 (out, scratch2, constm1_rtx)); | |
10524 | } | |
10525 | } | |
10526 | return 1; | |
10527 | } | |
10528 | ||
e075ae69 RH |
10529 | /* Expand the appropriate insns for doing strlen if not just doing |
10530 | repnz; scasb | |
10531 | ||
10532 | out = result, initialized with the start address | |
10533 | align_rtx = alignment of the address. | |
10534 | scratch = scratch register, initialized with the startaddress when | |
77ebd435 | 10535 | not aligned, otherwise undefined |
3f803cd9 SC |
10536 | |
10537 | This is just the body. It needs the initialisations mentioned above and | |
10538 | some address computing at the end. These things are done in i386.md. */ | |
10539 | ||
0945b39d JH |
10540 | static void |
10541 | ix86_expand_strlensi_unroll_1 (out, align_rtx) | |
10542 | rtx out, align_rtx; | |
3f803cd9 | 10543 | { |
e075ae69 RH |
10544 | int align; |
10545 | rtx tmp; | |
10546 | rtx align_2_label = NULL_RTX; | |
10547 | rtx align_3_label = NULL_RTX; | |
10548 | rtx align_4_label = gen_label_rtx (); | |
10549 | rtx end_0_label = gen_label_rtx (); | |
e075ae69 | 10550 | rtx mem; |
e2e52e1b | 10551 | rtx tmpreg = gen_reg_rtx (SImode); |
0945b39d | 10552 | rtx scratch = gen_reg_rtx (SImode); |
e075ae69 RH |
10553 | |
10554 | align = 0; | |
10555 | if (GET_CODE (align_rtx) == CONST_INT) | |
10556 | align = INTVAL (align_rtx); | |
3f803cd9 | 10557 | |
e9a25f70 | 10558 | /* Loop to check 1..3 bytes for null to get an aligned pointer. */ |
3f803cd9 | 10559 | |
e9a25f70 | 10560 | /* Is there a known alignment and is it less than 4? */ |
e075ae69 | 10561 | if (align < 4) |
3f803cd9 | 10562 | { |
0945b39d JH |
10563 | rtx scratch1 = gen_reg_rtx (Pmode); |
10564 | emit_move_insn (scratch1, out); | |
e9a25f70 | 10565 | /* Is there a known alignment and is it not 2? */ |
e075ae69 | 10566 | if (align != 2) |
3f803cd9 | 10567 | { |
e075ae69 RH |
10568 | align_3_label = gen_label_rtx (); /* Label when aligned to 3-byte */ |
10569 | align_2_label = gen_label_rtx (); /* Label when aligned to 2-byte */ | |
10570 | ||
10571 | /* Leave just the 3 lower bits. */ | |
0945b39d | 10572 | align_rtx = expand_binop (Pmode, and_optab, scratch1, GEN_INT (3), |
e075ae69 RH |
10573 | NULL_RTX, 0, OPTAB_WIDEN); |
10574 | ||
9076b9c1 | 10575 | emit_cmp_and_jump_insns (align_rtx, const0_rtx, EQ, NULL, |
d43e0b7d | 10576 | Pmode, 1, align_4_label); |
9076b9c1 | 10577 | emit_cmp_and_jump_insns (align_rtx, GEN_INT (2), EQ, NULL, |
d43e0b7d | 10578 | Pmode, 1, align_2_label); |
9076b9c1 | 10579 | emit_cmp_and_jump_insns (align_rtx, GEN_INT (2), GTU, NULL, |
d43e0b7d | 10580 | Pmode, 1, align_3_label); |
3f803cd9 SC |
10581 | } |
10582 | else | |
10583 | { | |
e9a25f70 JL |
10584 | /* Since the alignment is 2, we have to check 2 or 0 bytes; |
10585 | check if is aligned to 4 - byte. */ | |
e9a25f70 | 10586 | |
0945b39d | 10587 | align_rtx = expand_binop (Pmode, and_optab, scratch1, GEN_INT (2), |
e075ae69 RH |
10588 | NULL_RTX, 0, OPTAB_WIDEN); |
10589 | ||
9076b9c1 | 10590 | emit_cmp_and_jump_insns (align_rtx, const0_rtx, EQ, NULL, |
d43e0b7d | 10591 | Pmode, 1, align_4_label); |
3f803cd9 SC |
10592 | } |
10593 | ||
e075ae69 | 10594 | mem = gen_rtx_MEM (QImode, out); |
e9a25f70 | 10595 | |
e075ae69 | 10596 | /* Now compare the bytes. */ |
e9a25f70 | 10597 | |
0f290768 | 10598 | /* Compare the first n unaligned byte on a byte per byte basis. */ |
9076b9c1 | 10599 | emit_cmp_and_jump_insns (mem, const0_rtx, EQ, NULL, |
d43e0b7d | 10600 | QImode, 1, end_0_label); |
3f803cd9 | 10601 | |
0f290768 | 10602 | /* Increment the address. */ |
0945b39d JH |
10603 | if (TARGET_64BIT) |
10604 | emit_insn (gen_adddi3 (out, out, const1_rtx)); | |
10605 | else | |
10606 | emit_insn (gen_addsi3 (out, out, const1_rtx)); | |
e9a25f70 | 10607 | |
e075ae69 RH |
10608 | /* Not needed with an alignment of 2 */ |
10609 | if (align != 2) | |
10610 | { | |
10611 | emit_label (align_2_label); | |
3f803cd9 | 10612 | |
d43e0b7d RK |
10613 | emit_cmp_and_jump_insns (mem, const0_rtx, EQ, NULL, QImode, 1, |
10614 | end_0_label); | |
e075ae69 | 10615 | |
0945b39d JH |
10616 | if (TARGET_64BIT) |
10617 | emit_insn (gen_adddi3 (out, out, const1_rtx)); | |
10618 | else | |
10619 | emit_insn (gen_addsi3 (out, out, const1_rtx)); | |
e075ae69 RH |
10620 | |
10621 | emit_label (align_3_label); | |
10622 | } | |
10623 | ||
d43e0b7d RK |
10624 | emit_cmp_and_jump_insns (mem, const0_rtx, EQ, NULL, QImode, 1, |
10625 | end_0_label); | |
e075ae69 | 10626 | |
0945b39d JH |
10627 | if (TARGET_64BIT) |
10628 | emit_insn (gen_adddi3 (out, out, const1_rtx)); | |
10629 | else | |
10630 | emit_insn (gen_addsi3 (out, out, const1_rtx)); | |
3f803cd9 SC |
10631 | } |
10632 | ||
e075ae69 RH |
10633 | /* Generate loop to check 4 bytes at a time. It is not a good idea to |
10634 | align this loop. It gives only huge programs, but does not help to | |
10635 | speed up. */ | |
10636 | emit_label (align_4_label); | |
3f803cd9 | 10637 | |
e075ae69 RH |
10638 | mem = gen_rtx_MEM (SImode, out); |
10639 | emit_move_insn (scratch, mem); | |
0945b39d JH |
10640 | if (TARGET_64BIT) |
10641 | emit_insn (gen_adddi3 (out, out, GEN_INT (4))); | |
10642 | else | |
10643 | emit_insn (gen_addsi3 (out, out, GEN_INT (4))); | |
e075ae69 | 10644 | |
e2e52e1b JH |
10645 | /* This formula yields a nonzero result iff one of the bytes is zero. |
10646 | This saves three branches inside loop and many cycles. */ | |
10647 | ||
10648 | emit_insn (gen_addsi3 (tmpreg, scratch, GEN_INT (-0x01010101))); | |
10649 | emit_insn (gen_one_cmplsi2 (scratch, scratch)); | |
10650 | emit_insn (gen_andsi3 (tmpreg, tmpreg, scratch)); | |
7471a1f0 | 10651 | emit_insn (gen_andsi3 (tmpreg, tmpreg, |
d8bf17f9 | 10652 | gen_int_mode (0x80808080, SImode))); |
d43e0b7d RK |
10653 | emit_cmp_and_jump_insns (tmpreg, const0_rtx, EQ, 0, SImode, 1, |
10654 | align_4_label); | |
e2e52e1b JH |
10655 | |
10656 | if (TARGET_CMOVE) | |
10657 | { | |
10658 | rtx reg = gen_reg_rtx (SImode); | |
0945b39d | 10659 | rtx reg2 = gen_reg_rtx (Pmode); |
e2e52e1b JH |
10660 | emit_move_insn (reg, tmpreg); |
10661 | emit_insn (gen_lshrsi3 (reg, reg, GEN_INT (16))); | |
10662 | ||
0f290768 | 10663 | /* If zero is not in the first two bytes, move two bytes forward. */ |
16189740 | 10664 | emit_insn (gen_testsi_ccno_1 (tmpreg, GEN_INT (0x8080))); |
e2e52e1b JH |
10665 | tmp = gen_rtx_REG (CCNOmode, FLAGS_REG); |
10666 | tmp = gen_rtx_EQ (VOIDmode, tmp, const0_rtx); | |
10667 | emit_insn (gen_rtx_SET (VOIDmode, tmpreg, | |
10668 | gen_rtx_IF_THEN_ELSE (SImode, tmp, | |
77ebd435 AJ |
10669 | reg, |
10670 | tmpreg))); | |
e2e52e1b | 10671 | /* Emit lea manually to avoid clobbering of flags. */ |
0945b39d JH |
10672 | emit_insn (gen_rtx_SET (SImode, reg2, |
10673 | gen_rtx_PLUS (Pmode, out, GEN_INT (2)))); | |
e2e52e1b JH |
10674 | |
10675 | tmp = gen_rtx_REG (CCNOmode, FLAGS_REG); | |
10676 | tmp = gen_rtx_EQ (VOIDmode, tmp, const0_rtx); | |
10677 | emit_insn (gen_rtx_SET (VOIDmode, out, | |
0945b39d | 10678 | gen_rtx_IF_THEN_ELSE (Pmode, tmp, |
a4f31c00 AJ |
10679 | reg2, |
10680 | out))); | |
e2e52e1b JH |
10681 | |
10682 | } | |
10683 | else | |
10684 | { | |
10685 | rtx end_2_label = gen_label_rtx (); | |
10686 | /* Is zero in the first two bytes? */ | |
10687 | ||
16189740 | 10688 | emit_insn (gen_testsi_ccno_1 (tmpreg, GEN_INT (0x8080))); |
e2e52e1b JH |
10689 | tmp = gen_rtx_REG (CCNOmode, FLAGS_REG); |
10690 | tmp = gen_rtx_NE (VOIDmode, tmp, const0_rtx); | |
10691 | tmp = gen_rtx_IF_THEN_ELSE (VOIDmode, tmp, | |
10692 | gen_rtx_LABEL_REF (VOIDmode, end_2_label), | |
10693 | pc_rtx); | |
10694 | tmp = emit_jump_insn (gen_rtx_SET (VOIDmode, pc_rtx, tmp)); | |
10695 | JUMP_LABEL (tmp) = end_2_label; | |
10696 | ||
0f290768 | 10697 | /* Not in the first two. Move two bytes forward. */ |
e2e52e1b | 10698 | emit_insn (gen_lshrsi3 (tmpreg, tmpreg, GEN_INT (16))); |
0945b39d JH |
10699 | if (TARGET_64BIT) |
10700 | emit_insn (gen_adddi3 (out, out, GEN_INT (2))); | |
10701 | else | |
10702 | emit_insn (gen_addsi3 (out, out, GEN_INT (2))); | |
e2e52e1b JH |
10703 | |
10704 | emit_label (end_2_label); | |
10705 | ||
10706 | } | |
10707 | ||
0f290768 | 10708 | /* Avoid branch in fixing the byte. */ |
e2e52e1b | 10709 | tmpreg = gen_lowpart (QImode, tmpreg); |
7e08e190 | 10710 | emit_insn (gen_addqi3_cc (tmpreg, tmpreg, tmpreg)); |
0945b39d JH |
10711 | if (TARGET_64BIT) |
10712 | emit_insn (gen_subdi3_carry_rex64 (out, out, GEN_INT (3))); | |
10713 | else | |
10714 | emit_insn (gen_subsi3_carry (out, out, GEN_INT (3))); | |
e075ae69 RH |
10715 | |
10716 | emit_label (end_0_label); | |
10717 | } | |
0e07aff3 RH |
10718 | |
10719 | void | |
10720 | ix86_expand_call (retval, fnaddr, callarg1, callarg2, pop) | |
10721 | rtx retval, fnaddr, callarg1, callarg2, pop; | |
10722 | { | |
10723 | rtx use = NULL, call; | |
10724 | ||
10725 | if (pop == const0_rtx) | |
10726 | pop = NULL; | |
10727 | if (TARGET_64BIT && pop) | |
10728 | abort (); | |
10729 | ||
b069de3b SS |
10730 | #if TARGET_MACHO |
10731 | if (flag_pic && GET_CODE (XEXP (fnaddr, 0)) == SYMBOL_REF) | |
10732 | fnaddr = machopic_indirect_call_target (fnaddr); | |
10733 | #else | |
0e07aff3 RH |
10734 | /* Static functions and indirect calls don't need the pic register. */ |
10735 | if (! TARGET_64BIT && flag_pic | |
10736 | && GET_CODE (XEXP (fnaddr, 0)) == SYMBOL_REF | |
10737 | && ! SYMBOL_REF_FLAG (XEXP (fnaddr, 0))) | |
66edd3b4 | 10738 | use_reg (&use, pic_offset_table_rtx); |
0e07aff3 RH |
10739 | |
10740 | if (TARGET_64BIT && INTVAL (callarg2) >= 0) | |
10741 | { | |
10742 | rtx al = gen_rtx_REG (QImode, 0); | |
10743 | emit_move_insn (al, callarg2); | |
10744 | use_reg (&use, al); | |
10745 | } | |
b069de3b | 10746 | #endif /* TARGET_MACHO */ |
0e07aff3 RH |
10747 | |
10748 | if (! call_insn_operand (XEXP (fnaddr, 0), Pmode)) | |
10749 | { | |
10750 | fnaddr = copy_to_mode_reg (Pmode, XEXP (fnaddr, 0)); | |
10751 | fnaddr = gen_rtx_MEM (QImode, fnaddr); | |
10752 | } | |
10753 | ||
10754 | call = gen_rtx_CALL (VOIDmode, fnaddr, callarg1); | |
10755 | if (retval) | |
10756 | call = gen_rtx_SET (VOIDmode, retval, call); | |
10757 | if (pop) | |
10758 | { | |
10759 | pop = gen_rtx_PLUS (Pmode, stack_pointer_rtx, pop); | |
10760 | pop = gen_rtx_SET (VOIDmode, stack_pointer_rtx, pop); | |
10761 | call = gen_rtx_PARALLEL (VOIDmode, gen_rtvec (2, call, pop)); | |
10762 | } | |
10763 | ||
10764 | call = emit_call_insn (call); | |
10765 | if (use) | |
10766 | CALL_INSN_FUNCTION_USAGE (call) = use; | |
10767 | } | |
fce5a9f2 | 10768 | |
e075ae69 | 10769 | \f |
e075ae69 RH |
10770 | /* Clear stack slot assignments remembered from previous functions. |
10771 | This is called from INIT_EXPANDERS once before RTL is emitted for each | |
10772 | function. */ | |
10773 | ||
e2500fed GK |
10774 | static struct machine_function * |
10775 | ix86_init_machine_status () | |
37b15744 | 10776 | { |
e2500fed | 10777 | return ggc_alloc_cleared (sizeof (struct machine_function)); |
1526a060 BS |
10778 | } |
10779 | ||
e075ae69 RH |
10780 | /* Return a MEM corresponding to a stack slot with mode MODE. |
10781 | Allocate a new slot if necessary. | |
10782 | ||
10783 | The RTL for a function can have several slots available: N is | |
10784 | which slot to use. */ | |
10785 | ||
10786 | rtx | |
10787 | assign_386_stack_local (mode, n) | |
10788 | enum machine_mode mode; | |
10789 | int n; | |
10790 | { | |
10791 | if (n < 0 || n >= MAX_386_STACK_LOCALS) | |
10792 | abort (); | |
10793 | ||
10794 | if (ix86_stack_locals[(int) mode][n] == NULL_RTX) | |
10795 | ix86_stack_locals[(int) mode][n] | |
10796 | = assign_stack_local (mode, GET_MODE_SIZE (mode), 0); | |
10797 | ||
10798 | return ix86_stack_locals[(int) mode][n]; | |
10799 | } | |
f996902d RH |
10800 | |
10801 | /* Construct the SYMBOL_REF for the tls_get_addr function. */ | |
10802 | ||
e2500fed | 10803 | static GTY(()) rtx ix86_tls_symbol; |
f996902d RH |
10804 | rtx |
10805 | ix86_tls_get_addr () | |
10806 | { | |
f996902d | 10807 | |
e2500fed | 10808 | if (!ix86_tls_symbol) |
f996902d | 10809 | { |
e2500fed | 10810 | ix86_tls_symbol = gen_rtx_SYMBOL_REF (Pmode, (TARGET_GNU_TLS |
f996902d RH |
10811 | ? "___tls_get_addr" |
10812 | : "__tls_get_addr")); | |
f996902d RH |
10813 | } |
10814 | ||
e2500fed | 10815 | return ix86_tls_symbol; |
f996902d | 10816 | } |
e075ae69 RH |
10817 | \f |
10818 | /* Calculate the length of the memory address in the instruction | |
10819 | encoding. Does not include the one-byte modrm, opcode, or prefix. */ | |
10820 | ||
10821 | static int | |
10822 | memory_address_length (addr) | |
10823 | rtx addr; | |
10824 | { | |
10825 | struct ix86_address parts; | |
10826 | rtx base, index, disp; | |
10827 | int len; | |
10828 | ||
10829 | if (GET_CODE (addr) == PRE_DEC | |
0d7d98ee JH |
10830 | || GET_CODE (addr) == POST_INC |
10831 | || GET_CODE (addr) == PRE_MODIFY | |
10832 | || GET_CODE (addr) == POST_MODIFY) | |
e075ae69 | 10833 | return 0; |
3f803cd9 | 10834 | |
e075ae69 RH |
10835 | if (! ix86_decompose_address (addr, &parts)) |
10836 | abort (); | |
3f803cd9 | 10837 | |
e075ae69 RH |
10838 | base = parts.base; |
10839 | index = parts.index; | |
10840 | disp = parts.disp; | |
10841 | len = 0; | |
3f803cd9 | 10842 | |
e075ae69 RH |
10843 | /* Register Indirect. */ |
10844 | if (base && !index && !disp) | |
10845 | { | |
10846 | /* Special cases: ebp and esp need the two-byte modrm form. */ | |
10847 | if (addr == stack_pointer_rtx | |
10848 | || addr == arg_pointer_rtx | |
564d80f4 JH |
10849 | || addr == frame_pointer_rtx |
10850 | || addr == hard_frame_pointer_rtx) | |
e075ae69 | 10851 | len = 1; |
3f803cd9 | 10852 | } |
e9a25f70 | 10853 | |
e075ae69 RH |
10854 | /* Direct Addressing. */ |
10855 | else if (disp && !base && !index) | |
10856 | len = 4; | |
10857 | ||
3f803cd9 SC |
10858 | else |
10859 | { | |
e075ae69 RH |
10860 | /* Find the length of the displacement constant. */ |
10861 | if (disp) | |
10862 | { | |
10863 | if (GET_CODE (disp) == CONST_INT | |
10864 | && CONST_OK_FOR_LETTER_P (INTVAL (disp), 'K')) | |
10865 | len = 1; | |
10866 | else | |
10867 | len = 4; | |
10868 | } | |
3f803cd9 | 10869 | |
e075ae69 RH |
10870 | /* An index requires the two-byte modrm form. */ |
10871 | if (index) | |
10872 | len += 1; | |
3f803cd9 SC |
10873 | } |
10874 | ||
e075ae69 RH |
10875 | return len; |
10876 | } | |
79325812 | 10877 | |
5bf0ebab RH |
10878 | /* Compute default value for "length_immediate" attribute. When SHORTFORM |
10879 | is set, expect that insn have 8bit immediate alternative. */ | |
e075ae69 | 10880 | int |
6ef67412 | 10881 | ix86_attr_length_immediate_default (insn, shortform) |
e075ae69 | 10882 | rtx insn; |
6ef67412 | 10883 | int shortform; |
e075ae69 | 10884 | { |
6ef67412 JH |
10885 | int len = 0; |
10886 | int i; | |
6c698a6d | 10887 | extract_insn_cached (insn); |
6ef67412 JH |
10888 | for (i = recog_data.n_operands - 1; i >= 0; --i) |
10889 | if (CONSTANT_P (recog_data.operand[i])) | |
3071fab5 | 10890 | { |
6ef67412 | 10891 | if (len) |
3071fab5 | 10892 | abort (); |
6ef67412 JH |
10893 | if (shortform |
10894 | && GET_CODE (recog_data.operand[i]) == CONST_INT | |
10895 | && CONST_OK_FOR_LETTER_P (INTVAL (recog_data.operand[i]), 'K')) | |
10896 | len = 1; | |
10897 | else | |
10898 | { | |
10899 | switch (get_attr_mode (insn)) | |
10900 | { | |
10901 | case MODE_QI: | |
10902 | len+=1; | |
10903 | break; | |
10904 | case MODE_HI: | |
10905 | len+=2; | |
10906 | break; | |
10907 | case MODE_SI: | |
10908 | len+=4; | |
10909 | break; | |
14f73b5a JH |
10910 | /* Immediates for DImode instructions are encoded as 32bit sign extended values. */ |
10911 | case MODE_DI: | |
10912 | len+=4; | |
10913 | break; | |
6ef67412 | 10914 | default: |
c725bd79 | 10915 | fatal_insn ("unknown insn mode", insn); |
6ef67412 JH |
10916 | } |
10917 | } | |
3071fab5 | 10918 | } |
6ef67412 JH |
10919 | return len; |
10920 | } | |
10921 | /* Compute default value for "length_address" attribute. */ | |
10922 | int | |
10923 | ix86_attr_length_address_default (insn) | |
10924 | rtx insn; | |
10925 | { | |
10926 | int i; | |
6c698a6d | 10927 | extract_insn_cached (insn); |
1ccbefce RH |
10928 | for (i = recog_data.n_operands - 1; i >= 0; --i) |
10929 | if (GET_CODE (recog_data.operand[i]) == MEM) | |
e075ae69 | 10930 | { |
6ef67412 | 10931 | return memory_address_length (XEXP (recog_data.operand[i], 0)); |
e075ae69 RH |
10932 | break; |
10933 | } | |
6ef67412 | 10934 | return 0; |
3f803cd9 | 10935 | } |
e075ae69 RH |
10936 | \f |
10937 | /* Return the maximum number of instructions a cpu can issue. */ | |
b657fc39 | 10938 | |
c237e94a | 10939 | static int |
e075ae69 | 10940 | ix86_issue_rate () |
b657fc39 | 10941 | { |
e075ae69 | 10942 | switch (ix86_cpu) |
b657fc39 | 10943 | { |
e075ae69 RH |
10944 | case PROCESSOR_PENTIUM: |
10945 | case PROCESSOR_K6: | |
10946 | return 2; | |
79325812 | 10947 | |
e075ae69 | 10948 | case PROCESSOR_PENTIUMPRO: |
b4e89e2d JH |
10949 | case PROCESSOR_PENTIUM4: |
10950 | case PROCESSOR_ATHLON: | |
e075ae69 | 10951 | return 3; |
b657fc39 | 10952 | |
b657fc39 | 10953 | default: |
e075ae69 | 10954 | return 1; |
b657fc39 | 10955 | } |
b657fc39 L |
10956 | } |
10957 | ||
e075ae69 RH |
10958 | /* A subroutine of ix86_adjust_cost -- return true iff INSN reads flags set |
10959 | by DEP_INSN and nothing set by DEP_INSN. */ | |
b657fc39 | 10960 | |
e075ae69 RH |
10961 | static int |
10962 | ix86_flags_dependant (insn, dep_insn, insn_type) | |
10963 | rtx insn, dep_insn; | |
10964 | enum attr_type insn_type; | |
10965 | { | |
10966 | rtx set, set2; | |
b657fc39 | 10967 | |
e075ae69 RH |
10968 | /* Simplify the test for uninteresting insns. */ |
10969 | if (insn_type != TYPE_SETCC | |
10970 | && insn_type != TYPE_ICMOV | |
10971 | && insn_type != TYPE_FCMOV | |
10972 | && insn_type != TYPE_IBR) | |
10973 | return 0; | |
b657fc39 | 10974 | |
e075ae69 RH |
10975 | if ((set = single_set (dep_insn)) != 0) |
10976 | { | |
10977 | set = SET_DEST (set); | |
10978 | set2 = NULL_RTX; | |
10979 | } | |
10980 | else if (GET_CODE (PATTERN (dep_insn)) == PARALLEL | |
10981 | && XVECLEN (PATTERN (dep_insn), 0) == 2 | |
10982 | && GET_CODE (XVECEXP (PATTERN (dep_insn), 0, 0)) == SET | |
10983 | && GET_CODE (XVECEXP (PATTERN (dep_insn), 0, 1)) == SET) | |
10984 | { | |
10985 | set = SET_DEST (XVECEXP (PATTERN (dep_insn), 0, 0)); | |
10986 | set2 = SET_DEST (XVECEXP (PATTERN (dep_insn), 0, 0)); | |
10987 | } | |
78a0d70c ZW |
10988 | else |
10989 | return 0; | |
b657fc39 | 10990 | |
78a0d70c ZW |
10991 | if (GET_CODE (set) != REG || REGNO (set) != FLAGS_REG) |
10992 | return 0; | |
b657fc39 | 10993 | |
f5143c46 | 10994 | /* This test is true if the dependent insn reads the flags but |
78a0d70c ZW |
10995 | not any other potentially set register. */ |
10996 | if (!reg_overlap_mentioned_p (set, PATTERN (insn))) | |
10997 | return 0; | |
10998 | ||
10999 | if (set2 && reg_overlap_mentioned_p (set2, PATTERN (insn))) | |
11000 | return 0; | |
11001 | ||
11002 | return 1; | |
e075ae69 | 11003 | } |
b657fc39 | 11004 | |
e075ae69 RH |
11005 | /* A subroutine of ix86_adjust_cost -- return true iff INSN has a memory |
11006 | address with operands set by DEP_INSN. */ | |
11007 | ||
11008 | static int | |
11009 | ix86_agi_dependant (insn, dep_insn, insn_type) | |
11010 | rtx insn, dep_insn; | |
11011 | enum attr_type insn_type; | |
11012 | { | |
11013 | rtx addr; | |
11014 | ||
6ad48e84 JH |
11015 | if (insn_type == TYPE_LEA |
11016 | && TARGET_PENTIUM) | |
5fbdde42 RH |
11017 | { |
11018 | addr = PATTERN (insn); | |
11019 | if (GET_CODE (addr) == SET) | |
11020 | ; | |
11021 | else if (GET_CODE (addr) == PARALLEL | |
11022 | && GET_CODE (XVECEXP (addr, 0, 0)) == SET) | |
11023 | addr = XVECEXP (addr, 0, 0); | |
11024 | else | |
11025 | abort (); | |
11026 | addr = SET_SRC (addr); | |
11027 | } | |
e075ae69 RH |
11028 | else |
11029 | { | |
11030 | int i; | |
6c698a6d | 11031 | extract_insn_cached (insn); |
1ccbefce RH |
11032 | for (i = recog_data.n_operands - 1; i >= 0; --i) |
11033 | if (GET_CODE (recog_data.operand[i]) == MEM) | |
e075ae69 | 11034 | { |
1ccbefce | 11035 | addr = XEXP (recog_data.operand[i], 0); |
e075ae69 RH |
11036 | goto found; |
11037 | } | |
11038 | return 0; | |
11039 | found:; | |
b657fc39 L |
11040 | } |
11041 | ||
e075ae69 | 11042 | return modified_in_p (addr, dep_insn); |
b657fc39 | 11043 | } |
a269a03c | 11044 | |
c237e94a | 11045 | static int |
e075ae69 | 11046 | ix86_adjust_cost (insn, link, dep_insn, cost) |
a269a03c JC |
11047 | rtx insn, link, dep_insn; |
11048 | int cost; | |
11049 | { | |
e075ae69 | 11050 | enum attr_type insn_type, dep_insn_type; |
6ad48e84 | 11051 | enum attr_memory memory, dep_memory; |
e075ae69 | 11052 | rtx set, set2; |
9b00189f | 11053 | int dep_insn_code_number; |
a269a03c | 11054 | |
309ada50 | 11055 | /* Anti and output depenancies have zero cost on all CPUs. */ |
e075ae69 | 11056 | if (REG_NOTE_KIND (link) != 0) |
309ada50 | 11057 | return 0; |
a269a03c | 11058 | |
9b00189f JH |
11059 | dep_insn_code_number = recog_memoized (dep_insn); |
11060 | ||
e075ae69 | 11061 | /* If we can't recognize the insns, we can't really do anything. */ |
9b00189f | 11062 | if (dep_insn_code_number < 0 || recog_memoized (insn) < 0) |
e075ae69 | 11063 | return cost; |
a269a03c | 11064 | |
1c71e60e JH |
11065 | insn_type = get_attr_type (insn); |
11066 | dep_insn_type = get_attr_type (dep_insn); | |
9b00189f | 11067 | |
a269a03c JC |
11068 | switch (ix86_cpu) |
11069 | { | |
11070 | case PROCESSOR_PENTIUM: | |
e075ae69 RH |
11071 | /* Address Generation Interlock adds a cycle of latency. */ |
11072 | if (ix86_agi_dependant (insn, dep_insn, insn_type)) | |
11073 | cost += 1; | |
11074 | ||
11075 | /* ??? Compares pair with jump/setcc. */ | |
11076 | if (ix86_flags_dependant (insn, dep_insn, insn_type)) | |
11077 | cost = 0; | |
11078 | ||
11079 | /* Floating point stores require value to be ready one cycle ealier. */ | |
0f290768 | 11080 | if (insn_type == TYPE_FMOV |
e075ae69 RH |
11081 | && get_attr_memory (insn) == MEMORY_STORE |
11082 | && !ix86_agi_dependant (insn, dep_insn, insn_type)) | |
11083 | cost += 1; | |
11084 | break; | |
a269a03c | 11085 | |
e075ae69 | 11086 | case PROCESSOR_PENTIUMPRO: |
6ad48e84 JH |
11087 | memory = get_attr_memory (insn); |
11088 | dep_memory = get_attr_memory (dep_insn); | |
11089 | ||
0f290768 | 11090 | /* Since we can't represent delayed latencies of load+operation, |
e075ae69 RH |
11091 | increase the cost here for non-imov insns. */ |
11092 | if (dep_insn_type != TYPE_IMOV | |
6ad48e84 JH |
11093 | && dep_insn_type != TYPE_FMOV |
11094 | && (dep_memory == MEMORY_LOAD || dep_memory == MEMORY_BOTH)) | |
e075ae69 RH |
11095 | cost += 1; |
11096 | ||
11097 | /* INT->FP conversion is expensive. */ | |
11098 | if (get_attr_fp_int_src (dep_insn)) | |
11099 | cost += 5; | |
11100 | ||
11101 | /* There is one cycle extra latency between an FP op and a store. */ | |
11102 | if (insn_type == TYPE_FMOV | |
11103 | && (set = single_set (dep_insn)) != NULL_RTX | |
11104 | && (set2 = single_set (insn)) != NULL_RTX | |
11105 | && rtx_equal_p (SET_DEST (set), SET_SRC (set2)) | |
11106 | && GET_CODE (SET_DEST (set2)) == MEM) | |
11107 | cost += 1; | |
6ad48e84 JH |
11108 | |
11109 | /* Show ability of reorder buffer to hide latency of load by executing | |
11110 | in parallel with previous instruction in case | |
11111 | previous instruction is not needed to compute the address. */ | |
11112 | if ((memory == MEMORY_LOAD || memory == MEMORY_BOTH) | |
11113 | && !ix86_agi_dependant (insn, dep_insn, insn_type)) | |
11114 | { | |
11115 | /* Claim moves to take one cycle, as core can issue one load | |
11116 | at time and the next load can start cycle later. */ | |
11117 | if (dep_insn_type == TYPE_IMOV | |
11118 | || dep_insn_type == TYPE_FMOV) | |
11119 | cost = 1; | |
11120 | else if (cost > 1) | |
11121 | cost--; | |
11122 | } | |
e075ae69 | 11123 | break; |
a269a03c | 11124 | |
e075ae69 | 11125 | case PROCESSOR_K6: |
6ad48e84 JH |
11126 | memory = get_attr_memory (insn); |
11127 | dep_memory = get_attr_memory (dep_insn); | |
e075ae69 RH |
11128 | /* The esp dependency is resolved before the instruction is really |
11129 | finished. */ | |
11130 | if ((insn_type == TYPE_PUSH || insn_type == TYPE_POP) | |
11131 | && (dep_insn_type == TYPE_PUSH || dep_insn_type == TYPE_POP)) | |
11132 | return 1; | |
a269a03c | 11133 | |
0f290768 | 11134 | /* Since we can't represent delayed latencies of load+operation, |
e075ae69 | 11135 | increase the cost here for non-imov insns. */ |
6ad48e84 | 11136 | if (dep_memory == MEMORY_LOAD || dep_memory == MEMORY_BOTH) |
e075ae69 RH |
11137 | cost += (dep_insn_type != TYPE_IMOV) ? 2 : 1; |
11138 | ||
11139 | /* INT->FP conversion is expensive. */ | |
11140 | if (get_attr_fp_int_src (dep_insn)) | |
11141 | cost += 5; | |
6ad48e84 JH |
11142 | |
11143 | /* Show ability of reorder buffer to hide latency of load by executing | |
11144 | in parallel with previous instruction in case | |
11145 | previous instruction is not needed to compute the address. */ | |
11146 | if ((memory == MEMORY_LOAD || memory == MEMORY_BOTH) | |
11147 | && !ix86_agi_dependant (insn, dep_insn, insn_type)) | |
11148 | { | |
11149 | /* Claim moves to take one cycle, as core can issue one load | |
11150 | at time and the next load can start cycle later. */ | |
11151 | if (dep_insn_type == TYPE_IMOV | |
11152 | || dep_insn_type == TYPE_FMOV) | |
11153 | cost = 1; | |
11154 | else if (cost > 2) | |
11155 | cost -= 2; | |
11156 | else | |
11157 | cost = 1; | |
11158 | } | |
a14003ee | 11159 | break; |
e075ae69 | 11160 | |
309ada50 | 11161 | case PROCESSOR_ATHLON: |
6ad48e84 JH |
11162 | memory = get_attr_memory (insn); |
11163 | dep_memory = get_attr_memory (dep_insn); | |
11164 | ||
11165 | if (dep_memory == MEMORY_LOAD || dep_memory == MEMORY_BOTH) | |
0b5107cf JH |
11166 | { |
11167 | if (dep_insn_type == TYPE_IMOV || dep_insn_type == TYPE_FMOV) | |
11168 | cost += 2; | |
11169 | else | |
11170 | cost += 3; | |
11171 | } | |
6ad48e84 JH |
11172 | /* Show ability of reorder buffer to hide latency of load by executing |
11173 | in parallel with previous instruction in case | |
11174 | previous instruction is not needed to compute the address. */ | |
11175 | if ((memory == MEMORY_LOAD || memory == MEMORY_BOTH) | |
11176 | && !ix86_agi_dependant (insn, dep_insn, insn_type)) | |
11177 | { | |
11178 | /* Claim moves to take one cycle, as core can issue one load | |
11179 | at time and the next load can start cycle later. */ | |
11180 | if (dep_insn_type == TYPE_IMOV | |
11181 | || dep_insn_type == TYPE_FMOV) | |
11182 | cost = 0; | |
11183 | else if (cost >= 3) | |
11184 | cost -= 3; | |
11185 | else | |
11186 | cost = 0; | |
11187 | } | |
309ada50 | 11188 | |
a269a03c | 11189 | default: |
a269a03c JC |
11190 | break; |
11191 | } | |
11192 | ||
11193 | return cost; | |
11194 | } | |
0a726ef1 | 11195 | |
e075ae69 RH |
11196 | static union |
11197 | { | |
11198 | struct ppro_sched_data | |
11199 | { | |
11200 | rtx decode[3]; | |
11201 | int issued_this_cycle; | |
11202 | } ppro; | |
11203 | } ix86_sched_data; | |
0a726ef1 | 11204 | |
e075ae69 RH |
11205 | static enum attr_ppro_uops |
11206 | ix86_safe_ppro_uops (insn) | |
11207 | rtx insn; | |
11208 | { | |
11209 | if (recog_memoized (insn) >= 0) | |
11210 | return get_attr_ppro_uops (insn); | |
11211 | else | |
11212 | return PPRO_UOPS_MANY; | |
11213 | } | |
0a726ef1 | 11214 | |
e075ae69 RH |
11215 | static void |
11216 | ix86_dump_ppro_packet (dump) | |
11217 | FILE *dump; | |
0a726ef1 | 11218 | { |
e075ae69 | 11219 | if (ix86_sched_data.ppro.decode[0]) |
0a726ef1 | 11220 | { |
e075ae69 RH |
11221 | fprintf (dump, "PPRO packet: %d", |
11222 | INSN_UID (ix86_sched_data.ppro.decode[0])); | |
11223 | if (ix86_sched_data.ppro.decode[1]) | |
11224 | fprintf (dump, " %d", INSN_UID (ix86_sched_data.ppro.decode[1])); | |
11225 | if (ix86_sched_data.ppro.decode[2]) | |
11226 | fprintf (dump, " %d", INSN_UID (ix86_sched_data.ppro.decode[2])); | |
11227 | fputc ('\n', dump); | |
11228 | } | |
11229 | } | |
0a726ef1 | 11230 | |
e075ae69 | 11231 | /* We're beginning a new block. Initialize data structures as necessary. */ |
0a726ef1 | 11232 | |
c237e94a ZW |
11233 | static void |
11234 | ix86_sched_init (dump, sched_verbose, veclen) | |
e075ae69 RH |
11235 | FILE *dump ATTRIBUTE_UNUSED; |
11236 | int sched_verbose ATTRIBUTE_UNUSED; | |
c237e94a | 11237 | int veclen ATTRIBUTE_UNUSED; |
e075ae69 RH |
11238 | { |
11239 | memset (&ix86_sched_data, 0, sizeof (ix86_sched_data)); | |
11240 | } | |
11241 | ||
11242 | /* Shift INSN to SLOT, and shift everything else down. */ | |
11243 | ||
11244 | static void | |
11245 | ix86_reorder_insn (insnp, slot) | |
11246 | rtx *insnp, *slot; | |
11247 | { | |
11248 | if (insnp != slot) | |
11249 | { | |
11250 | rtx insn = *insnp; | |
0f290768 | 11251 | do |
e075ae69 RH |
11252 | insnp[0] = insnp[1]; |
11253 | while (++insnp != slot); | |
11254 | *insnp = insn; | |
0a726ef1 | 11255 | } |
e075ae69 RH |
11256 | } |
11257 | ||
c6991660 | 11258 | static void |
78a0d70c ZW |
11259 | ix86_sched_reorder_ppro (ready, e_ready) |
11260 | rtx *ready; | |
11261 | rtx *e_ready; | |
11262 | { | |
11263 | rtx decode[3]; | |
11264 | enum attr_ppro_uops cur_uops; | |
11265 | int issued_this_cycle; | |
11266 | rtx *insnp; | |
11267 | int i; | |
e075ae69 | 11268 | |
0f290768 | 11269 | /* At this point .ppro.decode contains the state of the three |
78a0d70c | 11270 | decoders from last "cycle". That is, those insns that were |
0f290768 | 11271 | actually independent. But here we're scheduling for the |
78a0d70c ZW |
11272 | decoder, and we may find things that are decodable in the |
11273 | same cycle. */ | |
e075ae69 | 11274 | |
0f290768 | 11275 | memcpy (decode, ix86_sched_data.ppro.decode, sizeof (decode)); |
78a0d70c | 11276 | issued_this_cycle = 0; |
e075ae69 | 11277 | |
78a0d70c ZW |
11278 | insnp = e_ready; |
11279 | cur_uops = ix86_safe_ppro_uops (*insnp); | |
0a726ef1 | 11280 | |
78a0d70c ZW |
11281 | /* If the decoders are empty, and we've a complex insn at the |
11282 | head of the priority queue, let it issue without complaint. */ | |
11283 | if (decode[0] == NULL) | |
11284 | { | |
11285 | if (cur_uops == PPRO_UOPS_MANY) | |
11286 | { | |
11287 | decode[0] = *insnp; | |
11288 | goto ppro_done; | |
11289 | } | |
11290 | ||
11291 | /* Otherwise, search for a 2-4 uop unsn to issue. */ | |
11292 | while (cur_uops != PPRO_UOPS_FEW) | |
11293 | { | |
11294 | if (insnp == ready) | |
11295 | break; | |
11296 | cur_uops = ix86_safe_ppro_uops (*--insnp); | |
11297 | } | |
11298 | ||
11299 | /* If so, move it to the head of the line. */ | |
11300 | if (cur_uops == PPRO_UOPS_FEW) | |
11301 | ix86_reorder_insn (insnp, e_ready); | |
0a726ef1 | 11302 | |
78a0d70c ZW |
11303 | /* Issue the head of the queue. */ |
11304 | issued_this_cycle = 1; | |
11305 | decode[0] = *e_ready--; | |
11306 | } | |
fb693d44 | 11307 | |
78a0d70c ZW |
11308 | /* Look for simple insns to fill in the other two slots. */ |
11309 | for (i = 1; i < 3; ++i) | |
11310 | if (decode[i] == NULL) | |
11311 | { | |
a151daf0 | 11312 | if (ready > e_ready) |
78a0d70c | 11313 | goto ppro_done; |
fb693d44 | 11314 | |
e075ae69 RH |
11315 | insnp = e_ready; |
11316 | cur_uops = ix86_safe_ppro_uops (*insnp); | |
78a0d70c ZW |
11317 | while (cur_uops != PPRO_UOPS_ONE) |
11318 | { | |
11319 | if (insnp == ready) | |
11320 | break; | |
11321 | cur_uops = ix86_safe_ppro_uops (*--insnp); | |
11322 | } | |
fb693d44 | 11323 | |
78a0d70c ZW |
11324 | /* Found one. Move it to the head of the queue and issue it. */ |
11325 | if (cur_uops == PPRO_UOPS_ONE) | |
e075ae69 | 11326 | { |
78a0d70c ZW |
11327 | ix86_reorder_insn (insnp, e_ready); |
11328 | decode[i] = *e_ready--; | |
11329 | issued_this_cycle++; | |
11330 | continue; | |
11331 | } | |
fb693d44 | 11332 | |
78a0d70c ZW |
11333 | /* ??? Didn't find one. Ideally, here we would do a lazy split |
11334 | of 2-uop insns, issue one and queue the other. */ | |
11335 | } | |
fb693d44 | 11336 | |
78a0d70c ZW |
11337 | ppro_done: |
11338 | if (issued_this_cycle == 0) | |
11339 | issued_this_cycle = 1; | |
11340 | ix86_sched_data.ppro.issued_this_cycle = issued_this_cycle; | |
11341 | } | |
fb693d44 | 11342 | |
0f290768 | 11343 | /* We are about to being issuing insns for this clock cycle. |
78a0d70c | 11344 | Override the default sort algorithm to better slot instructions. */ |
c237e94a ZW |
11345 | static int |
11346 | ix86_sched_reorder (dump, sched_verbose, ready, n_readyp, clock_var) | |
78a0d70c ZW |
11347 | FILE *dump ATTRIBUTE_UNUSED; |
11348 | int sched_verbose ATTRIBUTE_UNUSED; | |
11349 | rtx *ready; | |
c237e94a | 11350 | int *n_readyp; |
78a0d70c ZW |
11351 | int clock_var ATTRIBUTE_UNUSED; |
11352 | { | |
c237e94a | 11353 | int n_ready = *n_readyp; |
78a0d70c | 11354 | rtx *e_ready = ready + n_ready - 1; |
fb693d44 | 11355 | |
fce5a9f2 | 11356 | /* Make sure to go ahead and initialize key items in |
a151daf0 JL |
11357 | ix86_sched_data if we are not going to bother trying to |
11358 | reorder the ready queue. */ | |
78a0d70c | 11359 | if (n_ready < 2) |
a151daf0 JL |
11360 | { |
11361 | ix86_sched_data.ppro.issued_this_cycle = 1; | |
11362 | goto out; | |
11363 | } | |
e075ae69 | 11364 | |
78a0d70c ZW |
11365 | switch (ix86_cpu) |
11366 | { | |
11367 | default: | |
11368 | break; | |
e075ae69 | 11369 | |
78a0d70c ZW |
11370 | case PROCESSOR_PENTIUMPRO: |
11371 | ix86_sched_reorder_ppro (ready, e_ready); | |
e075ae69 | 11372 | break; |
fb693d44 RH |
11373 | } |
11374 | ||
e075ae69 RH |
11375 | out: |
11376 | return ix86_issue_rate (); | |
11377 | } | |
fb693d44 | 11378 | |
e075ae69 RH |
11379 | /* We are about to issue INSN. Return the number of insns left on the |
11380 | ready queue that can be issued this cycle. */ | |
b222082e | 11381 | |
c237e94a | 11382 | static int |
e075ae69 RH |
11383 | ix86_variable_issue (dump, sched_verbose, insn, can_issue_more) |
11384 | FILE *dump; | |
11385 | int sched_verbose; | |
11386 | rtx insn; | |
11387 | int can_issue_more; | |
11388 | { | |
11389 | int i; | |
11390 | switch (ix86_cpu) | |
fb693d44 | 11391 | { |
e075ae69 RH |
11392 | default: |
11393 | return can_issue_more - 1; | |
fb693d44 | 11394 | |
e075ae69 RH |
11395 | case PROCESSOR_PENTIUMPRO: |
11396 | { | |
11397 | enum attr_ppro_uops uops = ix86_safe_ppro_uops (insn); | |
fb693d44 | 11398 | |
e075ae69 RH |
11399 | if (uops == PPRO_UOPS_MANY) |
11400 | { | |
11401 | if (sched_verbose) | |
11402 | ix86_dump_ppro_packet (dump); | |
11403 | ix86_sched_data.ppro.decode[0] = insn; | |
11404 | ix86_sched_data.ppro.decode[1] = NULL; | |
11405 | ix86_sched_data.ppro.decode[2] = NULL; | |
11406 | if (sched_verbose) | |
11407 | ix86_dump_ppro_packet (dump); | |
11408 | ix86_sched_data.ppro.decode[0] = NULL; | |
11409 | } | |
11410 | else if (uops == PPRO_UOPS_FEW) | |
11411 | { | |
11412 | if (sched_verbose) | |
11413 | ix86_dump_ppro_packet (dump); | |
11414 | ix86_sched_data.ppro.decode[0] = insn; | |
11415 | ix86_sched_data.ppro.decode[1] = NULL; | |
11416 | ix86_sched_data.ppro.decode[2] = NULL; | |
11417 | } | |
11418 | else | |
11419 | { | |
11420 | for (i = 0; i < 3; ++i) | |
11421 | if (ix86_sched_data.ppro.decode[i] == NULL) | |
11422 | { | |
11423 | ix86_sched_data.ppro.decode[i] = insn; | |
11424 | break; | |
11425 | } | |
11426 | if (i == 3) | |
11427 | abort (); | |
11428 | if (i == 2) | |
11429 | { | |
11430 | if (sched_verbose) | |
11431 | ix86_dump_ppro_packet (dump); | |
11432 | ix86_sched_data.ppro.decode[0] = NULL; | |
11433 | ix86_sched_data.ppro.decode[1] = NULL; | |
11434 | ix86_sched_data.ppro.decode[2] = NULL; | |
11435 | } | |
11436 | } | |
11437 | } | |
11438 | return --ix86_sched_data.ppro.issued_this_cycle; | |
11439 | } | |
fb693d44 | 11440 | } |
9b690711 RH |
11441 | |
11442 | static int | |
11443 | ia32_use_dfa_pipeline_interface () | |
11444 | { | |
11445 | if (ix86_cpu == PROCESSOR_PENTIUM) | |
11446 | return 1; | |
11447 | return 0; | |
11448 | } | |
11449 | ||
11450 | /* How many alternative schedules to try. This should be as wide as the | |
11451 | scheduling freedom in the DFA, but no wider. Making this value too | |
11452 | large results extra work for the scheduler. */ | |
11453 | ||
11454 | static int | |
11455 | ia32_multipass_dfa_lookahead () | |
11456 | { | |
11457 | if (ix86_cpu == PROCESSOR_PENTIUM) | |
11458 | return 2; | |
11459 | else | |
11460 | return 0; | |
11461 | } | |
11462 | ||
a7180f70 | 11463 | \f |
0e4970d7 RK |
11464 | /* Walk through INSNS and look for MEM references whose address is DSTREG or |
11465 | SRCREG and set the memory attribute to those of DSTREF and SRCREF, as | |
11466 | appropriate. */ | |
11467 | ||
11468 | void | |
11469 | ix86_set_move_mem_attrs (insns, dstref, srcref, dstreg, srcreg) | |
11470 | rtx insns; | |
11471 | rtx dstref, srcref, dstreg, srcreg; | |
11472 | { | |
11473 | rtx insn; | |
11474 | ||
11475 | for (insn = insns; insn != 0 ; insn = NEXT_INSN (insn)) | |
11476 | if (INSN_P (insn)) | |
11477 | ix86_set_move_mem_attrs_1 (PATTERN (insn), dstref, srcref, | |
11478 | dstreg, srcreg); | |
11479 | } | |
11480 | ||
11481 | /* Subroutine of above to actually do the updating by recursively walking | |
11482 | the rtx. */ | |
11483 | ||
11484 | static void | |
11485 | ix86_set_move_mem_attrs_1 (x, dstref, srcref, dstreg, srcreg) | |
11486 | rtx x; | |
11487 | rtx dstref, srcref, dstreg, srcreg; | |
11488 | { | |
11489 | enum rtx_code code = GET_CODE (x); | |
11490 | const char *format_ptr = GET_RTX_FORMAT (code); | |
11491 | int i, j; | |
11492 | ||
11493 | if (code == MEM && XEXP (x, 0) == dstreg) | |
11494 | MEM_COPY_ATTRIBUTES (x, dstref); | |
11495 | else if (code == MEM && XEXP (x, 0) == srcreg) | |
11496 | MEM_COPY_ATTRIBUTES (x, srcref); | |
11497 | ||
11498 | for (i = 0; i < GET_RTX_LENGTH (code); i++, format_ptr++) | |
11499 | { | |
11500 | if (*format_ptr == 'e') | |
11501 | ix86_set_move_mem_attrs_1 (XEXP (x, i), dstref, srcref, | |
11502 | dstreg, srcreg); | |
11503 | else if (*format_ptr == 'E') | |
11504 | for (j = XVECLEN (x, i) - 1; j >= 0; j--) | |
397be6cf | 11505 | ix86_set_move_mem_attrs_1 (XVECEXP (x, i, j), dstref, srcref, |
0e4970d7 RK |
11506 | dstreg, srcreg); |
11507 | } | |
11508 | } | |
11509 | \f | |
a7180f70 BS |
11510 | /* Compute the alignment given to a constant that is being placed in memory. |
11511 | EXP is the constant and ALIGN is the alignment that the object would | |
11512 | ordinarily have. | |
11513 | The value of this function is used instead of that alignment to align | |
11514 | the object. */ | |
11515 | ||
11516 | int | |
11517 | ix86_constant_alignment (exp, align) | |
11518 | tree exp; | |
11519 | int align; | |
11520 | { | |
11521 | if (TREE_CODE (exp) == REAL_CST) | |
11522 | { | |
11523 | if (TYPE_MODE (TREE_TYPE (exp)) == DFmode && align < 64) | |
11524 | return 64; | |
11525 | else if (ALIGN_MODE_128 (TYPE_MODE (TREE_TYPE (exp))) && align < 128) | |
11526 | return 128; | |
11527 | } | |
11528 | else if (TREE_CODE (exp) == STRING_CST && TREE_STRING_LENGTH (exp) >= 31 | |
11529 | && align < 256) | |
11530 | return 256; | |
11531 | ||
11532 | return align; | |
11533 | } | |
11534 | ||
11535 | /* Compute the alignment for a static variable. | |
11536 | TYPE is the data type, and ALIGN is the alignment that | |
11537 | the object would ordinarily have. The value of this function is used | |
11538 | instead of that alignment to align the object. */ | |
11539 | ||
11540 | int | |
11541 | ix86_data_alignment (type, align) | |
11542 | tree type; | |
11543 | int align; | |
11544 | { | |
11545 | if (AGGREGATE_TYPE_P (type) | |
11546 | && TYPE_SIZE (type) | |
11547 | && TREE_CODE (TYPE_SIZE (type)) == INTEGER_CST | |
11548 | && (TREE_INT_CST_LOW (TYPE_SIZE (type)) >= 256 | |
11549 | || TREE_INT_CST_HIGH (TYPE_SIZE (type))) && align < 256) | |
11550 | return 256; | |
11551 | ||
0d7d98ee JH |
11552 | /* x86-64 ABI requires arrays greater than 16 bytes to be aligned |
11553 | to 16byte boundary. */ | |
11554 | if (TARGET_64BIT) | |
11555 | { | |
11556 | if (AGGREGATE_TYPE_P (type) | |
11557 | && TYPE_SIZE (type) | |
11558 | && TREE_CODE (TYPE_SIZE (type)) == INTEGER_CST | |
11559 | && (TREE_INT_CST_LOW (TYPE_SIZE (type)) >= 128 | |
11560 | || TREE_INT_CST_HIGH (TYPE_SIZE (type))) && align < 128) | |
11561 | return 128; | |
11562 | } | |
11563 | ||
a7180f70 BS |
11564 | if (TREE_CODE (type) == ARRAY_TYPE) |
11565 | { | |
11566 | if (TYPE_MODE (TREE_TYPE (type)) == DFmode && align < 64) | |
11567 | return 64; | |
11568 | if (ALIGN_MODE_128 (TYPE_MODE (TREE_TYPE (type))) && align < 128) | |
11569 | return 128; | |
11570 | } | |
11571 | else if (TREE_CODE (type) == COMPLEX_TYPE) | |
11572 | { | |
0f290768 | 11573 | |
a7180f70 BS |
11574 | if (TYPE_MODE (type) == DCmode && align < 64) |
11575 | return 64; | |
11576 | if (TYPE_MODE (type) == XCmode && align < 128) | |
11577 | return 128; | |
11578 | } | |
11579 | else if ((TREE_CODE (type) == RECORD_TYPE | |
11580 | || TREE_CODE (type) == UNION_TYPE | |
11581 | || TREE_CODE (type) == QUAL_UNION_TYPE) | |
11582 | && TYPE_FIELDS (type)) | |
11583 | { | |
11584 | if (DECL_MODE (TYPE_FIELDS (type)) == DFmode && align < 64) | |
11585 | return 64; | |
11586 | if (ALIGN_MODE_128 (DECL_MODE (TYPE_FIELDS (type))) && align < 128) | |
11587 | return 128; | |
11588 | } | |
11589 | else if (TREE_CODE (type) == REAL_TYPE || TREE_CODE (type) == VECTOR_TYPE | |
11590 | || TREE_CODE (type) == INTEGER_TYPE) | |
11591 | { | |
11592 | if (TYPE_MODE (type) == DFmode && align < 64) | |
11593 | return 64; | |
11594 | if (ALIGN_MODE_128 (TYPE_MODE (type)) && align < 128) | |
11595 | return 128; | |
11596 | } | |
11597 | ||
11598 | return align; | |
11599 | } | |
11600 | ||
11601 | /* Compute the alignment for a local variable. | |
11602 | TYPE is the data type, and ALIGN is the alignment that | |
11603 | the object would ordinarily have. The value of this macro is used | |
11604 | instead of that alignment to align the object. */ | |
11605 | ||
11606 | int | |
11607 | ix86_local_alignment (type, align) | |
11608 | tree type; | |
11609 | int align; | |
11610 | { | |
0d7d98ee JH |
11611 | /* x86-64 ABI requires arrays greater than 16 bytes to be aligned |
11612 | to 16byte boundary. */ | |
11613 | if (TARGET_64BIT) | |
11614 | { | |
11615 | if (AGGREGATE_TYPE_P (type) | |
11616 | && TYPE_SIZE (type) | |
11617 | && TREE_CODE (TYPE_SIZE (type)) == INTEGER_CST | |
11618 | && (TREE_INT_CST_LOW (TYPE_SIZE (type)) >= 16 | |
11619 | || TREE_INT_CST_HIGH (TYPE_SIZE (type))) && align < 128) | |
11620 | return 128; | |
11621 | } | |
a7180f70 BS |
11622 | if (TREE_CODE (type) == ARRAY_TYPE) |
11623 | { | |
11624 | if (TYPE_MODE (TREE_TYPE (type)) == DFmode && align < 64) | |
11625 | return 64; | |
11626 | if (ALIGN_MODE_128 (TYPE_MODE (TREE_TYPE (type))) && align < 128) | |
11627 | return 128; | |
11628 | } | |
11629 | else if (TREE_CODE (type) == COMPLEX_TYPE) | |
11630 | { | |
11631 | if (TYPE_MODE (type) == DCmode && align < 64) | |
11632 | return 64; | |
11633 | if (TYPE_MODE (type) == XCmode && align < 128) | |
11634 | return 128; | |
11635 | } | |
11636 | else if ((TREE_CODE (type) == RECORD_TYPE | |
11637 | || TREE_CODE (type) == UNION_TYPE | |
11638 | || TREE_CODE (type) == QUAL_UNION_TYPE) | |
11639 | && TYPE_FIELDS (type)) | |
11640 | { | |
11641 | if (DECL_MODE (TYPE_FIELDS (type)) == DFmode && align < 64) | |
11642 | return 64; | |
11643 | if (ALIGN_MODE_128 (DECL_MODE (TYPE_FIELDS (type))) && align < 128) | |
11644 | return 128; | |
11645 | } | |
11646 | else if (TREE_CODE (type) == REAL_TYPE || TREE_CODE (type) == VECTOR_TYPE | |
11647 | || TREE_CODE (type) == INTEGER_TYPE) | |
11648 | { | |
0f290768 | 11649 | |
a7180f70 BS |
11650 | if (TYPE_MODE (type) == DFmode && align < 64) |
11651 | return 64; | |
11652 | if (ALIGN_MODE_128 (TYPE_MODE (type)) && align < 128) | |
11653 | return 128; | |
11654 | } | |
11655 | return align; | |
11656 | } | |
0ed08620 JH |
11657 | \f |
11658 | /* Emit RTL insns to initialize the variable parts of a trampoline. | |
11659 | FNADDR is an RTX for the address of the function's pure code. | |
11660 | CXT is an RTX for the static chain value for the function. */ | |
11661 | void | |
11662 | x86_initialize_trampoline (tramp, fnaddr, cxt) | |
11663 | rtx tramp, fnaddr, cxt; | |
11664 | { | |
11665 | if (!TARGET_64BIT) | |
11666 | { | |
11667 | /* Compute offset from the end of the jmp to the target function. */ | |
11668 | rtx disp = expand_binop (SImode, sub_optab, fnaddr, | |
11669 | plus_constant (tramp, 10), | |
11670 | NULL_RTX, 1, OPTAB_DIRECT); | |
11671 | emit_move_insn (gen_rtx_MEM (QImode, tramp), | |
d8bf17f9 | 11672 | gen_int_mode (0xb9, QImode)); |
0ed08620 JH |
11673 | emit_move_insn (gen_rtx_MEM (SImode, plus_constant (tramp, 1)), cxt); |
11674 | emit_move_insn (gen_rtx_MEM (QImode, plus_constant (tramp, 5)), | |
d8bf17f9 | 11675 | gen_int_mode (0xe9, QImode)); |
0ed08620 JH |
11676 | emit_move_insn (gen_rtx_MEM (SImode, plus_constant (tramp, 6)), disp); |
11677 | } | |
11678 | else | |
11679 | { | |
11680 | int offset = 0; | |
11681 | /* Try to load address using shorter movl instead of movabs. | |
11682 | We may want to support movq for kernel mode, but kernel does not use | |
11683 | trampolines at the moment. */ | |
11684 | if (x86_64_zero_extended_value (fnaddr)) | |
11685 | { | |
11686 | fnaddr = copy_to_mode_reg (DImode, fnaddr); | |
11687 | emit_move_insn (gen_rtx_MEM (HImode, plus_constant (tramp, offset)), | |
d8bf17f9 | 11688 | gen_int_mode (0xbb41, HImode)); |
0ed08620 JH |
11689 | emit_move_insn (gen_rtx_MEM (SImode, plus_constant (tramp, offset + 2)), |
11690 | gen_lowpart (SImode, fnaddr)); | |
11691 | offset += 6; | |
11692 | } | |
11693 | else | |
11694 | { | |
11695 | emit_move_insn (gen_rtx_MEM (HImode, plus_constant (tramp, offset)), | |
d8bf17f9 | 11696 | gen_int_mode (0xbb49, HImode)); |
0ed08620 JH |
11697 | emit_move_insn (gen_rtx_MEM (DImode, plus_constant (tramp, offset + 2)), |
11698 | fnaddr); | |
11699 | offset += 10; | |
11700 | } | |
11701 | /* Load static chain using movabs to r10. */ | |
11702 | emit_move_insn (gen_rtx_MEM (HImode, plus_constant (tramp, offset)), | |
d8bf17f9 | 11703 | gen_int_mode (0xba49, HImode)); |
0ed08620 JH |
11704 | emit_move_insn (gen_rtx_MEM (DImode, plus_constant (tramp, offset + 2)), |
11705 | cxt); | |
11706 | offset += 10; | |
11707 | /* Jump to the r11 */ | |
11708 | emit_move_insn (gen_rtx_MEM (HImode, plus_constant (tramp, offset)), | |
d8bf17f9 | 11709 | gen_int_mode (0xff49, HImode)); |
0ed08620 | 11710 | emit_move_insn (gen_rtx_MEM (QImode, plus_constant (tramp, offset+2)), |
d8bf17f9 | 11711 | gen_int_mode (0xe3, QImode)); |
0ed08620 JH |
11712 | offset += 3; |
11713 | if (offset > TRAMPOLINE_SIZE) | |
b531087a | 11714 | abort (); |
0ed08620 JH |
11715 | } |
11716 | } | |
eeb06b1b | 11717 | \f |
6a2dd09a RS |
11718 | #define def_builtin(MASK, NAME, TYPE, CODE) \ |
11719 | do { \ | |
11720 | if ((MASK) & target_flags) \ | |
11721 | builtin_function ((NAME), (TYPE), (CODE), BUILT_IN_MD, \ | |
11722 | NULL, NULL_TREE); \ | |
eeb06b1b | 11723 | } while (0) |
bd793c65 | 11724 | |
bd793c65 BS |
11725 | struct builtin_description |
11726 | { | |
8b60264b KG |
11727 | const unsigned int mask; |
11728 | const enum insn_code icode; | |
11729 | const char *const name; | |
11730 | const enum ix86_builtins code; | |
11731 | const enum rtx_code comparison; | |
11732 | const unsigned int flag; | |
bd793c65 BS |
11733 | }; |
11734 | ||
fbe5eb6d BS |
11735 | /* Used for builtins that are enabled both by -msse and -msse2. */ |
11736 | #define MASK_SSE1 (MASK_SSE | MASK_SSE2) | |
11737 | ||
8b60264b | 11738 | static const struct builtin_description bdesc_comi[] = |
bd793c65 | 11739 | { |
fbe5eb6d BS |
11740 | { MASK_SSE1, CODE_FOR_sse_comi, "__builtin_ia32_comieq", IX86_BUILTIN_COMIEQSS, EQ, 0 }, |
11741 | { MASK_SSE1, CODE_FOR_sse_comi, "__builtin_ia32_comilt", IX86_BUILTIN_COMILTSS, LT, 0 }, | |
11742 | { MASK_SSE1, CODE_FOR_sse_comi, "__builtin_ia32_comile", IX86_BUILTIN_COMILESS, LE, 0 }, | |
11743 | { MASK_SSE1, CODE_FOR_sse_comi, "__builtin_ia32_comigt", IX86_BUILTIN_COMIGTSS, LT, 1 }, | |
11744 | { MASK_SSE1, CODE_FOR_sse_comi, "__builtin_ia32_comige", IX86_BUILTIN_COMIGESS, LE, 1 }, | |
11745 | { MASK_SSE1, CODE_FOR_sse_comi, "__builtin_ia32_comineq", IX86_BUILTIN_COMINEQSS, NE, 0 }, | |
11746 | { MASK_SSE1, CODE_FOR_sse_ucomi, "__builtin_ia32_ucomieq", IX86_BUILTIN_UCOMIEQSS, EQ, 0 }, | |
11747 | { MASK_SSE1, CODE_FOR_sse_ucomi, "__builtin_ia32_ucomilt", IX86_BUILTIN_UCOMILTSS, LT, 0 }, | |
11748 | { MASK_SSE1, CODE_FOR_sse_ucomi, "__builtin_ia32_ucomile", IX86_BUILTIN_UCOMILESS, LE, 0 }, | |
11749 | { MASK_SSE1, CODE_FOR_sse_ucomi, "__builtin_ia32_ucomigt", IX86_BUILTIN_UCOMIGTSS, LT, 1 }, | |
11750 | { MASK_SSE1, CODE_FOR_sse_ucomi, "__builtin_ia32_ucomige", IX86_BUILTIN_UCOMIGESS, LE, 1 }, | |
11751 | { MASK_SSE1, CODE_FOR_sse_ucomi, "__builtin_ia32_ucomineq", IX86_BUILTIN_UCOMINEQSS, NE, 0 }, | |
11752 | { MASK_SSE2, CODE_FOR_sse2_comi, "__builtin_ia32_comisdeq", IX86_BUILTIN_COMIEQSD, EQ, 0 }, | |
11753 | { MASK_SSE2, CODE_FOR_sse2_comi, "__builtin_ia32_comisdlt", IX86_BUILTIN_COMILTSD, LT, 0 }, | |
11754 | { MASK_SSE2, CODE_FOR_sse2_comi, "__builtin_ia32_comisdle", IX86_BUILTIN_COMILESD, LE, 0 }, | |
11755 | { MASK_SSE2, CODE_FOR_sse2_comi, "__builtin_ia32_comisdgt", IX86_BUILTIN_COMIGTSD, LT, 1 }, | |
11756 | { MASK_SSE2, CODE_FOR_sse2_comi, "__builtin_ia32_comisdge", IX86_BUILTIN_COMIGESD, LE, 1 }, | |
11757 | { MASK_SSE2, CODE_FOR_sse2_comi, "__builtin_ia32_comisdneq", IX86_BUILTIN_COMINEQSD, NE, 0 }, | |
11758 | { MASK_SSE2, CODE_FOR_sse2_ucomi, "__builtin_ia32_ucomisdeq", IX86_BUILTIN_UCOMIEQSD, EQ, 0 }, | |
11759 | { MASK_SSE2, CODE_FOR_sse2_ucomi, "__builtin_ia32_ucomisdlt", IX86_BUILTIN_UCOMILTSD, LT, 0 }, | |
11760 | { MASK_SSE2, CODE_FOR_sse2_ucomi, "__builtin_ia32_ucomisdle", IX86_BUILTIN_UCOMILESD, LE, 0 }, | |
11761 | { MASK_SSE2, CODE_FOR_sse2_ucomi, "__builtin_ia32_ucomisdgt", IX86_BUILTIN_UCOMIGTSD, LT, 1 }, | |
11762 | { MASK_SSE2, CODE_FOR_sse2_ucomi, "__builtin_ia32_ucomisdge", IX86_BUILTIN_UCOMIGESD, LE, 1 }, | |
11763 | { MASK_SSE2, CODE_FOR_sse2_ucomi, "__builtin_ia32_ucomisdneq", IX86_BUILTIN_UCOMINEQSD, NE, 0 }, | |
bd793c65 BS |
11764 | }; |
11765 | ||
8b60264b | 11766 | static const struct builtin_description bdesc_2arg[] = |
bd793c65 BS |
11767 | { |
11768 | /* SSE */ | |
fbe5eb6d BS |
11769 | { MASK_SSE1, CODE_FOR_addv4sf3, "__builtin_ia32_addps", IX86_BUILTIN_ADDPS, 0, 0 }, |
11770 | { MASK_SSE1, CODE_FOR_subv4sf3, "__builtin_ia32_subps", IX86_BUILTIN_SUBPS, 0, 0 }, | |
11771 | { MASK_SSE1, CODE_FOR_mulv4sf3, "__builtin_ia32_mulps", IX86_BUILTIN_MULPS, 0, 0 }, | |
11772 | { MASK_SSE1, CODE_FOR_divv4sf3, "__builtin_ia32_divps", IX86_BUILTIN_DIVPS, 0, 0 }, | |
11773 | { MASK_SSE1, CODE_FOR_vmaddv4sf3, "__builtin_ia32_addss", IX86_BUILTIN_ADDSS, 0, 0 }, | |
11774 | { MASK_SSE1, CODE_FOR_vmsubv4sf3, "__builtin_ia32_subss", IX86_BUILTIN_SUBSS, 0, 0 }, | |
11775 | { MASK_SSE1, CODE_FOR_vmmulv4sf3, "__builtin_ia32_mulss", IX86_BUILTIN_MULSS, 0, 0 }, | |
11776 | { MASK_SSE1, CODE_FOR_vmdivv4sf3, "__builtin_ia32_divss", IX86_BUILTIN_DIVSS, 0, 0 }, | |
11777 | ||
11778 | { MASK_SSE1, CODE_FOR_maskcmpv4sf3, "__builtin_ia32_cmpeqps", IX86_BUILTIN_CMPEQPS, EQ, 0 }, | |
11779 | { MASK_SSE1, CODE_FOR_maskcmpv4sf3, "__builtin_ia32_cmpltps", IX86_BUILTIN_CMPLTPS, LT, 0 }, | |
11780 | { MASK_SSE1, CODE_FOR_maskcmpv4sf3, "__builtin_ia32_cmpleps", IX86_BUILTIN_CMPLEPS, LE, 0 }, | |
11781 | { MASK_SSE1, CODE_FOR_maskcmpv4sf3, "__builtin_ia32_cmpgtps", IX86_BUILTIN_CMPGTPS, LT, 1 }, | |
11782 | { MASK_SSE1, CODE_FOR_maskcmpv4sf3, "__builtin_ia32_cmpgeps", IX86_BUILTIN_CMPGEPS, LE, 1 }, | |
11783 | { MASK_SSE1, CODE_FOR_maskcmpv4sf3, "__builtin_ia32_cmpunordps", IX86_BUILTIN_CMPUNORDPS, UNORDERED, 0 }, | |
11784 | { MASK_SSE1, CODE_FOR_maskncmpv4sf3, "__builtin_ia32_cmpneqps", IX86_BUILTIN_CMPNEQPS, EQ, 0 }, | |
11785 | { MASK_SSE1, CODE_FOR_maskncmpv4sf3, "__builtin_ia32_cmpnltps", IX86_BUILTIN_CMPNLTPS, LT, 0 }, | |
11786 | { MASK_SSE1, CODE_FOR_maskncmpv4sf3, "__builtin_ia32_cmpnleps", IX86_BUILTIN_CMPNLEPS, LE, 0 }, | |
11787 | { MASK_SSE1, CODE_FOR_maskncmpv4sf3, "__builtin_ia32_cmpngtps", IX86_BUILTIN_CMPNGTPS, LT, 1 }, | |
11788 | { MASK_SSE1, CODE_FOR_maskncmpv4sf3, "__builtin_ia32_cmpngeps", IX86_BUILTIN_CMPNGEPS, LE, 1 }, | |
11789 | { MASK_SSE1, CODE_FOR_maskncmpv4sf3, "__builtin_ia32_cmpordps", IX86_BUILTIN_CMPORDPS, UNORDERED, 0 }, | |
11790 | { MASK_SSE1, CODE_FOR_vmmaskcmpv4sf3, "__builtin_ia32_cmpeqss", IX86_BUILTIN_CMPEQSS, EQ, 0 }, | |
11791 | { MASK_SSE1, CODE_FOR_vmmaskcmpv4sf3, "__builtin_ia32_cmpltss", IX86_BUILTIN_CMPLTSS, LT, 0 }, | |
11792 | { MASK_SSE1, CODE_FOR_vmmaskcmpv4sf3, "__builtin_ia32_cmpless", IX86_BUILTIN_CMPLESS, LE, 0 }, | |
fbe5eb6d BS |
11793 | { MASK_SSE1, CODE_FOR_vmmaskcmpv4sf3, "__builtin_ia32_cmpunordss", IX86_BUILTIN_CMPUNORDSS, UNORDERED, 0 }, |
11794 | { MASK_SSE1, CODE_FOR_vmmaskncmpv4sf3, "__builtin_ia32_cmpneqss", IX86_BUILTIN_CMPNEQSS, EQ, 0 }, | |
11795 | { MASK_SSE1, CODE_FOR_vmmaskncmpv4sf3, "__builtin_ia32_cmpnltss", IX86_BUILTIN_CMPNLTSS, LT, 0 }, | |
11796 | { MASK_SSE1, CODE_FOR_vmmaskncmpv4sf3, "__builtin_ia32_cmpnless", IX86_BUILTIN_CMPNLESS, LE, 0 }, | |
fbe5eb6d BS |
11797 | { MASK_SSE1, CODE_FOR_vmmaskncmpv4sf3, "__builtin_ia32_cmpordss", IX86_BUILTIN_CMPORDSS, UNORDERED, 0 }, |
11798 | ||
11799 | { MASK_SSE1, CODE_FOR_sminv4sf3, "__builtin_ia32_minps", IX86_BUILTIN_MINPS, 0, 0 }, | |
11800 | { MASK_SSE1, CODE_FOR_smaxv4sf3, "__builtin_ia32_maxps", IX86_BUILTIN_MAXPS, 0, 0 }, | |
11801 | { MASK_SSE1, CODE_FOR_vmsminv4sf3, "__builtin_ia32_minss", IX86_BUILTIN_MINSS, 0, 0 }, | |
11802 | { MASK_SSE1, CODE_FOR_vmsmaxv4sf3, "__builtin_ia32_maxss", IX86_BUILTIN_MAXSS, 0, 0 }, | |
11803 | ||
1877be45 JH |
11804 | { MASK_SSE1, CODE_FOR_sse_andv4sf3, "__builtin_ia32_andps", IX86_BUILTIN_ANDPS, 0, 0 }, |
11805 | { MASK_SSE1, CODE_FOR_sse_nandv4sf3, "__builtin_ia32_andnps", IX86_BUILTIN_ANDNPS, 0, 0 }, | |
11806 | { MASK_SSE1, CODE_FOR_sse_iorv4sf3, "__builtin_ia32_orps", IX86_BUILTIN_ORPS, 0, 0 }, | |
11807 | { MASK_SSE1, CODE_FOR_sse_xorv4sf3, "__builtin_ia32_xorps", IX86_BUILTIN_XORPS, 0, 0 }, | |
11808 | ||
fbe5eb6d BS |
11809 | { MASK_SSE1, CODE_FOR_sse_movss, "__builtin_ia32_movss", IX86_BUILTIN_MOVSS, 0, 0 }, |
11810 | { MASK_SSE1, CODE_FOR_sse_movhlps, "__builtin_ia32_movhlps", IX86_BUILTIN_MOVHLPS, 0, 0 }, | |
11811 | { MASK_SSE1, CODE_FOR_sse_movlhps, "__builtin_ia32_movlhps", IX86_BUILTIN_MOVLHPS, 0, 0 }, | |
11812 | { MASK_SSE1, CODE_FOR_sse_unpckhps, "__builtin_ia32_unpckhps", IX86_BUILTIN_UNPCKHPS, 0, 0 }, | |
11813 | { MASK_SSE1, CODE_FOR_sse_unpcklps, "__builtin_ia32_unpcklps", IX86_BUILTIN_UNPCKLPS, 0, 0 }, | |
bd793c65 BS |
11814 | |
11815 | /* MMX */ | |
eeb06b1b BS |
11816 | { MASK_MMX, CODE_FOR_addv8qi3, "__builtin_ia32_paddb", IX86_BUILTIN_PADDB, 0, 0 }, |
11817 | { MASK_MMX, CODE_FOR_addv4hi3, "__builtin_ia32_paddw", IX86_BUILTIN_PADDW, 0, 0 }, | |
11818 | { MASK_MMX, CODE_FOR_addv2si3, "__builtin_ia32_paddd", IX86_BUILTIN_PADDD, 0, 0 }, | |
11819 | { MASK_MMX, CODE_FOR_subv8qi3, "__builtin_ia32_psubb", IX86_BUILTIN_PSUBB, 0, 0 }, | |
11820 | { MASK_MMX, CODE_FOR_subv4hi3, "__builtin_ia32_psubw", IX86_BUILTIN_PSUBW, 0, 0 }, | |
11821 | { MASK_MMX, CODE_FOR_subv2si3, "__builtin_ia32_psubd", IX86_BUILTIN_PSUBD, 0, 0 }, | |
11822 | ||
11823 | { MASK_MMX, CODE_FOR_ssaddv8qi3, "__builtin_ia32_paddsb", IX86_BUILTIN_PADDSB, 0, 0 }, | |
11824 | { MASK_MMX, CODE_FOR_ssaddv4hi3, "__builtin_ia32_paddsw", IX86_BUILTIN_PADDSW, 0, 0 }, | |
11825 | { MASK_MMX, CODE_FOR_sssubv8qi3, "__builtin_ia32_psubsb", IX86_BUILTIN_PSUBSB, 0, 0 }, | |
11826 | { MASK_MMX, CODE_FOR_sssubv4hi3, "__builtin_ia32_psubsw", IX86_BUILTIN_PSUBSW, 0, 0 }, | |
11827 | { MASK_MMX, CODE_FOR_usaddv8qi3, "__builtin_ia32_paddusb", IX86_BUILTIN_PADDUSB, 0, 0 }, | |
11828 | { MASK_MMX, CODE_FOR_usaddv4hi3, "__builtin_ia32_paddusw", IX86_BUILTIN_PADDUSW, 0, 0 }, | |
11829 | { MASK_MMX, CODE_FOR_ussubv8qi3, "__builtin_ia32_psubusb", IX86_BUILTIN_PSUBUSB, 0, 0 }, | |
11830 | { MASK_MMX, CODE_FOR_ussubv4hi3, "__builtin_ia32_psubusw", IX86_BUILTIN_PSUBUSW, 0, 0 }, | |
11831 | ||
11832 | { MASK_MMX, CODE_FOR_mulv4hi3, "__builtin_ia32_pmullw", IX86_BUILTIN_PMULLW, 0, 0 }, | |
11833 | { MASK_MMX, CODE_FOR_smulv4hi3_highpart, "__builtin_ia32_pmulhw", IX86_BUILTIN_PMULHW, 0, 0 }, | |
fbe5eb6d | 11834 | { MASK_SSE1 | MASK_3DNOW_A, CODE_FOR_umulv4hi3_highpart, "__builtin_ia32_pmulhuw", IX86_BUILTIN_PMULHUW, 0, 0 }, |
eeb06b1b BS |
11835 | |
11836 | { MASK_MMX, CODE_FOR_mmx_anddi3, "__builtin_ia32_pand", IX86_BUILTIN_PAND, 0, 0 }, | |
11837 | { MASK_MMX, CODE_FOR_mmx_nanddi3, "__builtin_ia32_pandn", IX86_BUILTIN_PANDN, 0, 0 }, | |
11838 | { MASK_MMX, CODE_FOR_mmx_iordi3, "__builtin_ia32_por", IX86_BUILTIN_POR, 0, 0 }, | |
11839 | { MASK_MMX, CODE_FOR_mmx_xordi3, "__builtin_ia32_pxor", IX86_BUILTIN_PXOR, 0, 0 }, | |
11840 | ||
fbe5eb6d BS |
11841 | { MASK_SSE1 | MASK_3DNOW_A, CODE_FOR_mmx_uavgv8qi3, "__builtin_ia32_pavgb", IX86_BUILTIN_PAVGB, 0, 0 }, |
11842 | { MASK_SSE1 | MASK_3DNOW_A, CODE_FOR_mmx_uavgv4hi3, "__builtin_ia32_pavgw", IX86_BUILTIN_PAVGW, 0, 0 }, | |
eeb06b1b BS |
11843 | |
11844 | { MASK_MMX, CODE_FOR_eqv8qi3, "__builtin_ia32_pcmpeqb", IX86_BUILTIN_PCMPEQB, 0, 0 }, | |
11845 | { MASK_MMX, CODE_FOR_eqv4hi3, "__builtin_ia32_pcmpeqw", IX86_BUILTIN_PCMPEQW, 0, 0 }, | |
11846 | { MASK_MMX, CODE_FOR_eqv2si3, "__builtin_ia32_pcmpeqd", IX86_BUILTIN_PCMPEQD, 0, 0 }, | |
11847 | { MASK_MMX, CODE_FOR_gtv8qi3, "__builtin_ia32_pcmpgtb", IX86_BUILTIN_PCMPGTB, 0, 0 }, | |
11848 | { MASK_MMX, CODE_FOR_gtv4hi3, "__builtin_ia32_pcmpgtw", IX86_BUILTIN_PCMPGTW, 0, 0 }, | |
11849 | { MASK_MMX, CODE_FOR_gtv2si3, "__builtin_ia32_pcmpgtd", IX86_BUILTIN_PCMPGTD, 0, 0 }, | |
11850 | ||
fbe5eb6d BS |
11851 | { MASK_SSE1 | MASK_3DNOW_A, CODE_FOR_umaxv8qi3, "__builtin_ia32_pmaxub", IX86_BUILTIN_PMAXUB, 0, 0 }, |
11852 | { MASK_SSE1 | MASK_3DNOW_A, CODE_FOR_smaxv4hi3, "__builtin_ia32_pmaxsw", IX86_BUILTIN_PMAXSW, 0, 0 }, | |
11853 | { MASK_SSE1 | MASK_3DNOW_A, CODE_FOR_uminv8qi3, "__builtin_ia32_pminub", IX86_BUILTIN_PMINUB, 0, 0 }, | |
11854 | { MASK_SSE1 | MASK_3DNOW_A, CODE_FOR_sminv4hi3, "__builtin_ia32_pminsw", IX86_BUILTIN_PMINSW, 0, 0 }, | |
eeb06b1b BS |
11855 | |
11856 | { MASK_MMX, CODE_FOR_mmx_punpckhbw, "__builtin_ia32_punpckhbw", IX86_BUILTIN_PUNPCKHBW, 0, 0 }, | |
11857 | { MASK_MMX, CODE_FOR_mmx_punpckhwd, "__builtin_ia32_punpckhwd", IX86_BUILTIN_PUNPCKHWD, 0, 0 }, | |
11858 | { MASK_MMX, CODE_FOR_mmx_punpckhdq, "__builtin_ia32_punpckhdq", IX86_BUILTIN_PUNPCKHDQ, 0, 0 }, | |
11859 | { MASK_MMX, CODE_FOR_mmx_punpcklbw, "__builtin_ia32_punpcklbw", IX86_BUILTIN_PUNPCKLBW, 0, 0 }, | |
11860 | { MASK_MMX, CODE_FOR_mmx_punpcklwd, "__builtin_ia32_punpcklwd", IX86_BUILTIN_PUNPCKLWD, 0, 0 }, | |
11861 | { MASK_MMX, CODE_FOR_mmx_punpckldq, "__builtin_ia32_punpckldq", IX86_BUILTIN_PUNPCKLDQ, 0, 0 }, | |
bd793c65 BS |
11862 | |
11863 | /* Special. */ | |
eeb06b1b BS |
11864 | { MASK_MMX, CODE_FOR_mmx_packsswb, 0, IX86_BUILTIN_PACKSSWB, 0, 0 }, |
11865 | { MASK_MMX, CODE_FOR_mmx_packssdw, 0, IX86_BUILTIN_PACKSSDW, 0, 0 }, | |
11866 | { MASK_MMX, CODE_FOR_mmx_packuswb, 0, IX86_BUILTIN_PACKUSWB, 0, 0 }, | |
11867 | ||
fbe5eb6d BS |
11868 | { MASK_SSE1, CODE_FOR_cvtpi2ps, 0, IX86_BUILTIN_CVTPI2PS, 0, 0 }, |
11869 | { MASK_SSE1, CODE_FOR_cvtsi2ss, 0, IX86_BUILTIN_CVTSI2SS, 0, 0 }, | |
eeb06b1b BS |
11870 | |
11871 | { MASK_MMX, CODE_FOR_ashlv4hi3, 0, IX86_BUILTIN_PSLLW, 0, 0 }, | |
11872 | { MASK_MMX, CODE_FOR_ashlv4hi3, 0, IX86_BUILTIN_PSLLWI, 0, 0 }, | |
11873 | { MASK_MMX, CODE_FOR_ashlv2si3, 0, IX86_BUILTIN_PSLLD, 0, 0 }, | |
11874 | { MASK_MMX, CODE_FOR_ashlv2si3, 0, IX86_BUILTIN_PSLLDI, 0, 0 }, | |
11875 | { MASK_MMX, CODE_FOR_mmx_ashldi3, 0, IX86_BUILTIN_PSLLQ, 0, 0 }, | |
11876 | { MASK_MMX, CODE_FOR_mmx_ashldi3, 0, IX86_BUILTIN_PSLLQI, 0, 0 }, | |
11877 | ||
11878 | { MASK_MMX, CODE_FOR_lshrv4hi3, 0, IX86_BUILTIN_PSRLW, 0, 0 }, | |
11879 | { MASK_MMX, CODE_FOR_lshrv4hi3, 0, IX86_BUILTIN_PSRLWI, 0, 0 }, | |
11880 | { MASK_MMX, CODE_FOR_lshrv2si3, 0, IX86_BUILTIN_PSRLD, 0, 0 }, | |
11881 | { MASK_MMX, CODE_FOR_lshrv2si3, 0, IX86_BUILTIN_PSRLDI, 0, 0 }, | |
11882 | { MASK_MMX, CODE_FOR_mmx_lshrdi3, 0, IX86_BUILTIN_PSRLQ, 0, 0 }, | |
11883 | { MASK_MMX, CODE_FOR_mmx_lshrdi3, 0, IX86_BUILTIN_PSRLQI, 0, 0 }, | |
11884 | ||
11885 | { MASK_MMX, CODE_FOR_ashrv4hi3, 0, IX86_BUILTIN_PSRAW, 0, 0 }, | |
11886 | { MASK_MMX, CODE_FOR_ashrv4hi3, 0, IX86_BUILTIN_PSRAWI, 0, 0 }, | |
11887 | { MASK_MMX, CODE_FOR_ashrv2si3, 0, IX86_BUILTIN_PSRAD, 0, 0 }, | |
11888 | { MASK_MMX, CODE_FOR_ashrv2si3, 0, IX86_BUILTIN_PSRADI, 0, 0 }, | |
11889 | ||
fbe5eb6d BS |
11890 | { MASK_SSE1 | MASK_3DNOW_A, CODE_FOR_mmx_psadbw, 0, IX86_BUILTIN_PSADBW, 0, 0 }, |
11891 | { MASK_MMX, CODE_FOR_mmx_pmaddwd, 0, IX86_BUILTIN_PMADDWD, 0, 0 }, | |
11892 | ||
11893 | /* SSE2 */ | |
11894 | { MASK_SSE2, CODE_FOR_addv2df3, "__builtin_ia32_addpd", IX86_BUILTIN_ADDPD, 0, 0 }, | |
11895 | { MASK_SSE2, CODE_FOR_subv2df3, "__builtin_ia32_subpd", IX86_BUILTIN_SUBPD, 0, 0 }, | |
11896 | { MASK_SSE2, CODE_FOR_mulv2df3, "__builtin_ia32_mulpd", IX86_BUILTIN_MULPD, 0, 0 }, | |
11897 | { MASK_SSE2, CODE_FOR_divv2df3, "__builtin_ia32_divpd", IX86_BUILTIN_DIVPD, 0, 0 }, | |
11898 | { MASK_SSE2, CODE_FOR_vmaddv2df3, "__builtin_ia32_addsd", IX86_BUILTIN_ADDSD, 0, 0 }, | |
11899 | { MASK_SSE2, CODE_FOR_vmsubv2df3, "__builtin_ia32_subsd", IX86_BUILTIN_SUBSD, 0, 0 }, | |
11900 | { MASK_SSE2, CODE_FOR_vmmulv2df3, "__builtin_ia32_mulsd", IX86_BUILTIN_MULSD, 0, 0 }, | |
11901 | { MASK_SSE2, CODE_FOR_vmdivv2df3, "__builtin_ia32_divsd", IX86_BUILTIN_DIVSD, 0, 0 }, | |
11902 | ||
11903 | { MASK_SSE2, CODE_FOR_maskcmpv2df3, "__builtin_ia32_cmpeqpd", IX86_BUILTIN_CMPEQPD, EQ, 0 }, | |
11904 | { MASK_SSE2, CODE_FOR_maskcmpv2df3, "__builtin_ia32_cmpltpd", IX86_BUILTIN_CMPLTPD, LT, 0 }, | |
11905 | { MASK_SSE2, CODE_FOR_maskcmpv2df3, "__builtin_ia32_cmplepd", IX86_BUILTIN_CMPLEPD, LE, 0 }, | |
11906 | { MASK_SSE2, CODE_FOR_maskcmpv2df3, "__builtin_ia32_cmpgtpd", IX86_BUILTIN_CMPGTPD, LT, 1 }, | |
11907 | { MASK_SSE2, CODE_FOR_maskcmpv2df3, "__builtin_ia32_cmpgepd", IX86_BUILTIN_CMPGEPD, LE, 1 }, | |
11908 | { MASK_SSE2, CODE_FOR_maskcmpv2df3, "__builtin_ia32_cmpunordpd", IX86_BUILTIN_CMPUNORDPD, UNORDERED, 0 }, | |
11909 | { MASK_SSE2, CODE_FOR_maskncmpv2df3, "__builtin_ia32_cmpneqpd", IX86_BUILTIN_CMPNEQPD, EQ, 0 }, | |
11910 | { MASK_SSE2, CODE_FOR_maskncmpv2df3, "__builtin_ia32_cmpnltpd", IX86_BUILTIN_CMPNLTPD, LT, 0 }, | |
11911 | { MASK_SSE2, CODE_FOR_maskncmpv2df3, "__builtin_ia32_cmpnlepd", IX86_BUILTIN_CMPNLEPD, LE, 0 }, | |
11912 | { MASK_SSE2, CODE_FOR_maskncmpv2df3, "__builtin_ia32_cmpngtpd", IX86_BUILTIN_CMPNGTPD, LT, 1 }, | |
11913 | { MASK_SSE2, CODE_FOR_maskncmpv2df3, "__builtin_ia32_cmpngepd", IX86_BUILTIN_CMPNGEPD, LE, 1 }, | |
11914 | { MASK_SSE2, CODE_FOR_maskncmpv2df3, "__builtin_ia32_cmpordpd", IX86_BUILTIN_CMPORDPD, UNORDERED, 0 }, | |
11915 | { MASK_SSE2, CODE_FOR_vmmaskcmpv2df3, "__builtin_ia32_cmpeqsd", IX86_BUILTIN_CMPEQSD, EQ, 0 }, | |
11916 | { MASK_SSE2, CODE_FOR_vmmaskcmpv2df3, "__builtin_ia32_cmpltsd", IX86_BUILTIN_CMPLTSD, LT, 0 }, | |
11917 | { MASK_SSE2, CODE_FOR_vmmaskcmpv2df3, "__builtin_ia32_cmplesd", IX86_BUILTIN_CMPLESD, LE, 0 }, | |
fbe5eb6d BS |
11918 | { MASK_SSE2, CODE_FOR_vmmaskcmpv2df3, "__builtin_ia32_cmpunordsd", IX86_BUILTIN_CMPUNORDSD, UNORDERED, 0 }, |
11919 | { MASK_SSE2, CODE_FOR_vmmaskncmpv2df3, "__builtin_ia32_cmpneqsd", IX86_BUILTIN_CMPNEQSD, EQ, 0 }, | |
11920 | { MASK_SSE2, CODE_FOR_vmmaskncmpv2df3, "__builtin_ia32_cmpnltsd", IX86_BUILTIN_CMPNLTSD, LT, 0 }, | |
11921 | { MASK_SSE2, CODE_FOR_vmmaskncmpv2df3, "__builtin_ia32_cmpnlesd", IX86_BUILTIN_CMPNLESD, LE, 0 }, | |
fbe5eb6d BS |
11922 | { MASK_SSE2, CODE_FOR_vmmaskncmpv2df3, "__builtin_ia32_cmpordsd", IX86_BUILTIN_CMPORDSD, UNORDERED, 0 }, |
11923 | ||
11924 | { MASK_SSE2, CODE_FOR_sminv2df3, "__builtin_ia32_minpd", IX86_BUILTIN_MINPD, 0, 0 }, | |
11925 | { MASK_SSE2, CODE_FOR_smaxv2df3, "__builtin_ia32_maxpd", IX86_BUILTIN_MAXPD, 0, 0 }, | |
11926 | { MASK_SSE2, CODE_FOR_vmsminv2df3, "__builtin_ia32_minsd", IX86_BUILTIN_MINSD, 0, 0 }, | |
11927 | { MASK_SSE2, CODE_FOR_vmsmaxv2df3, "__builtin_ia32_maxsd", IX86_BUILTIN_MAXSD, 0, 0 }, | |
11928 | ||
1877be45 JH |
11929 | { MASK_SSE2, CODE_FOR_sse2_andv2df3, "__builtin_ia32_andpd", IX86_BUILTIN_ANDPD, 0, 0 }, |
11930 | { MASK_SSE2, CODE_FOR_sse2_nandv2df3, "__builtin_ia32_andnpd", IX86_BUILTIN_ANDNPD, 0, 0 }, | |
11931 | { MASK_SSE2, CODE_FOR_sse2_iorv2df3, "__builtin_ia32_orpd", IX86_BUILTIN_ORPD, 0, 0 }, | |
11932 | { MASK_SSE2, CODE_FOR_sse2_xorv2df3, "__builtin_ia32_xorpd", IX86_BUILTIN_XORPD, 0, 0 }, | |
fbe5eb6d BS |
11933 | |
11934 | { MASK_SSE2, CODE_FOR_sse2_movsd, "__builtin_ia32_movsd", IX86_BUILTIN_MOVSD, 0, 0 }, | |
11935 | { MASK_SSE2, CODE_FOR_sse2_unpckhpd, "__builtin_ia32_unpckhpd", IX86_BUILTIN_UNPCKHPD, 0, 0 }, | |
11936 | { MASK_SSE2, CODE_FOR_sse2_unpcklpd, "__builtin_ia32_unpcklpd", IX86_BUILTIN_UNPCKLPD, 0, 0 }, | |
11937 | ||
11938 | /* SSE2 MMX */ | |
11939 | { MASK_SSE2, CODE_FOR_addv16qi3, "__builtin_ia32_paddb128", IX86_BUILTIN_PADDB128, 0, 0 }, | |
11940 | { MASK_SSE2, CODE_FOR_addv8hi3, "__builtin_ia32_paddw128", IX86_BUILTIN_PADDW128, 0, 0 }, | |
11941 | { MASK_SSE2, CODE_FOR_addv4si3, "__builtin_ia32_paddd128", IX86_BUILTIN_PADDD128, 0, 0 }, | |
11942 | { MASK_SSE2, CODE_FOR_addv4si3, "__builtin_ia32_paddq128", IX86_BUILTIN_PADDQ128, 0, 0 }, | |
11943 | { MASK_SSE2, CODE_FOR_subv16qi3, "__builtin_ia32_psubb128", IX86_BUILTIN_PSUBB128, 0, 0 }, | |
11944 | { MASK_SSE2, CODE_FOR_subv8hi3, "__builtin_ia32_psubw128", IX86_BUILTIN_PSUBW128, 0, 0 }, | |
11945 | { MASK_SSE2, CODE_FOR_subv4si3, "__builtin_ia32_psubd128", IX86_BUILTIN_PSUBD128, 0, 0 }, | |
11946 | { MASK_SSE2, CODE_FOR_subv4si3, "__builtin_ia32_psubq128", IX86_BUILTIN_PSUBQ128, 0, 0 }, | |
11947 | ||
11948 | { MASK_MMX, CODE_FOR_ssaddv16qi3, "__builtin_ia32_paddsb128", IX86_BUILTIN_PADDSB128, 0, 0 }, | |
11949 | { MASK_MMX, CODE_FOR_ssaddv8hi3, "__builtin_ia32_paddsw128", IX86_BUILTIN_PADDSW128, 0, 0 }, | |
11950 | { MASK_MMX, CODE_FOR_sssubv16qi3, "__builtin_ia32_psubsb128", IX86_BUILTIN_PSUBSB128, 0, 0 }, | |
11951 | { MASK_MMX, CODE_FOR_sssubv8hi3, "__builtin_ia32_psubsw128", IX86_BUILTIN_PSUBSW128, 0, 0 }, | |
11952 | { MASK_MMX, CODE_FOR_usaddv16qi3, "__builtin_ia32_paddusb128", IX86_BUILTIN_PADDUSB128, 0, 0 }, | |
11953 | { MASK_MMX, CODE_FOR_usaddv8hi3, "__builtin_ia32_paddusw128", IX86_BUILTIN_PADDUSW128, 0, 0 }, | |
11954 | { MASK_MMX, CODE_FOR_ussubv16qi3, "__builtin_ia32_psubusb128", IX86_BUILTIN_PSUBUSB128, 0, 0 }, | |
11955 | { MASK_MMX, CODE_FOR_ussubv8hi3, "__builtin_ia32_psubusw128", IX86_BUILTIN_PSUBUSW128, 0, 0 }, | |
11956 | ||
11957 | { MASK_SSE2, CODE_FOR_mulv8hi3, "__builtin_ia32_pmullw128", IX86_BUILTIN_PMULLW128, 0, 0 }, | |
11958 | { MASK_SSE2, CODE_FOR_smulv8hi3_highpart, "__builtin_ia32_pmulhw128", IX86_BUILTIN_PMULHW128, 0, 0 }, | |
11959 | { MASK_SSE2, CODE_FOR_sse2_umulsidi3, "__builtin_ia32_pmuludq", IX86_BUILTIN_PMULUDQ, 0, 0 }, | |
11960 | { MASK_SSE2, CODE_FOR_sse2_umulv2siv2di3, "__builtin_ia32_pmuludq128", IX86_BUILTIN_PMULUDQ128, 0, 0 }, | |
11961 | ||
916b60b7 BS |
11962 | { MASK_SSE2, CODE_FOR_sse2_andv2di3, "__builtin_ia32_pand128", IX86_BUILTIN_PAND128, 0, 0 }, |
11963 | { MASK_SSE2, CODE_FOR_sse2_nandv2di3, "__builtin_ia32_pandn128", IX86_BUILTIN_PANDN128, 0, 0 }, | |
11964 | { MASK_SSE2, CODE_FOR_sse2_iorv2di3, "__builtin_ia32_por128", IX86_BUILTIN_POR128, 0, 0 }, | |
11965 | { MASK_SSE2, CODE_FOR_sse2_xorv2di3, "__builtin_ia32_pxor128", IX86_BUILTIN_PXOR128, 0, 0 }, | |
fbe5eb6d BS |
11966 | |
11967 | { MASK_SSE2, CODE_FOR_sse2_uavgv16qi3, "__builtin_ia32_pavgb128", IX86_BUILTIN_PAVGB128, 0, 0 }, | |
11968 | { MASK_SSE2, CODE_FOR_sse2_uavgv8hi3, "__builtin_ia32_pavgw128", IX86_BUILTIN_PAVGW128, 0, 0 }, | |
11969 | ||
11970 | { MASK_SSE2, CODE_FOR_eqv16qi3, "__builtin_ia32_pcmpeqb128", IX86_BUILTIN_PCMPEQB128, 0, 0 }, | |
11971 | { MASK_SSE2, CODE_FOR_eqv8hi3, "__builtin_ia32_pcmpeqw128", IX86_BUILTIN_PCMPEQW128, 0, 0 }, | |
11972 | { MASK_SSE2, CODE_FOR_eqv4si3, "__builtin_ia32_pcmpeqd128", IX86_BUILTIN_PCMPEQD128, 0, 0 }, | |
11973 | { MASK_SSE2, CODE_FOR_gtv16qi3, "__builtin_ia32_pcmpgtb128", IX86_BUILTIN_PCMPGTB128, 0, 0 }, | |
11974 | { MASK_SSE2, CODE_FOR_gtv8hi3, "__builtin_ia32_pcmpgtw128", IX86_BUILTIN_PCMPGTW128, 0, 0 }, | |
11975 | { MASK_SSE2, CODE_FOR_gtv4si3, "__builtin_ia32_pcmpgtd128", IX86_BUILTIN_PCMPGTD128, 0, 0 }, | |
11976 | ||
11977 | { MASK_SSE2, CODE_FOR_umaxv16qi3, "__builtin_ia32_pmaxub128", IX86_BUILTIN_PMAXUB128, 0, 0 }, | |
11978 | { MASK_SSE2, CODE_FOR_smaxv8hi3, "__builtin_ia32_pmaxsw128", IX86_BUILTIN_PMAXSW128, 0, 0 }, | |
11979 | { MASK_SSE2, CODE_FOR_uminv16qi3, "__builtin_ia32_pminub128", IX86_BUILTIN_PMINUB128, 0, 0 }, | |
11980 | { MASK_SSE2, CODE_FOR_sminv8hi3, "__builtin_ia32_pminsw128", IX86_BUILTIN_PMINSW128, 0, 0 }, | |
11981 | ||
11982 | { MASK_SSE2, CODE_FOR_sse2_punpckhbw, "__builtin_ia32_punpckhbw128", IX86_BUILTIN_PUNPCKHBW128, 0, 0 }, | |
11983 | { MASK_SSE2, CODE_FOR_sse2_punpckhwd, "__builtin_ia32_punpckhwd128", IX86_BUILTIN_PUNPCKHWD128, 0, 0 }, | |
11984 | { MASK_SSE2, CODE_FOR_sse2_punpckhdq, "__builtin_ia32_punpckhdq128", IX86_BUILTIN_PUNPCKHDQ128, 0, 0 }, | |
11985 | { MASK_SSE2, CODE_FOR_sse2_punpcklbw, "__builtin_ia32_punpcklbw128", IX86_BUILTIN_PUNPCKLBW128, 0, 0 }, | |
11986 | { MASK_SSE2, CODE_FOR_sse2_punpcklwd, "__builtin_ia32_punpcklwd128", IX86_BUILTIN_PUNPCKLWD128, 0, 0 }, | |
11987 | { MASK_SSE2, CODE_FOR_sse2_punpckldq, "__builtin_ia32_punpckldq128", IX86_BUILTIN_PUNPCKLDQ128, 0, 0 }, | |
11988 | ||
916b60b7 BS |
11989 | { MASK_SSE2, CODE_FOR_sse2_packsswb, "__builtin_ia32_packsswb128", IX86_BUILTIN_PACKSSWB128, 0, 0 }, |
11990 | { MASK_SSE2, CODE_FOR_sse2_packssdw, "__builtin_ia32_packssdw128", IX86_BUILTIN_PACKSSDW128, 0, 0 }, | |
11991 | { MASK_SSE2, CODE_FOR_sse2_packuswb, "__builtin_ia32_packuswb128", IX86_BUILTIN_PACKUSWB128, 0, 0 }, | |
11992 | ||
11993 | { MASK_SSE2, CODE_FOR_umulv8hi3_highpart, "__builtin_ia32_pmulhuw128", IX86_BUILTIN_PMULHUW128, 0, 0 }, | |
11994 | { MASK_SSE2, CODE_FOR_sse2_psadbw, 0, IX86_BUILTIN_PSADBW128, 0, 0 }, | |
11995 | ||
11996 | { MASK_SSE2, CODE_FOR_ashlv8hi3_ti, 0, IX86_BUILTIN_PSLLW128, 0, 0 }, | |
11997 | { MASK_SSE2, CODE_FOR_ashlv8hi3, 0, IX86_BUILTIN_PSLLWI128, 0, 0 }, | |
11998 | { MASK_SSE2, CODE_FOR_ashlv4si3_ti, 0, IX86_BUILTIN_PSLLD128, 0, 0 }, | |
11999 | { MASK_SSE2, CODE_FOR_ashlv4si3, 0, IX86_BUILTIN_PSLLDI128, 0, 0 }, | |
12000 | { MASK_SSE2, CODE_FOR_ashlv2di3_ti, 0, IX86_BUILTIN_PSLLQ128, 0, 0 }, | |
12001 | { MASK_SSE2, CODE_FOR_ashlv2di3, 0, IX86_BUILTIN_PSLLQI128, 0, 0 }, | |
12002 | ||
12003 | { MASK_SSE2, CODE_FOR_lshrv8hi3_ti, 0, IX86_BUILTIN_PSRLW128, 0, 0 }, | |
12004 | { MASK_SSE2, CODE_FOR_lshrv8hi3, 0, IX86_BUILTIN_PSRLWI128, 0, 0 }, | |
12005 | { MASK_SSE2, CODE_FOR_lshrv4si3_ti, 0, IX86_BUILTIN_PSRLD128, 0, 0 }, | |
12006 | { MASK_SSE2, CODE_FOR_lshrv4si3, 0, IX86_BUILTIN_PSRLDI128, 0, 0 }, | |
12007 | { MASK_SSE2, CODE_FOR_lshrv2di3_ti, 0, IX86_BUILTIN_PSRLQ128, 0, 0 }, | |
12008 | { MASK_SSE2, CODE_FOR_lshrv2di3, 0, IX86_BUILTIN_PSRLQI128, 0, 0 }, | |
12009 | ||
12010 | { MASK_SSE2, CODE_FOR_ashrv8hi3_ti, 0, IX86_BUILTIN_PSRAW128, 0, 0 }, | |
12011 | { MASK_SSE2, CODE_FOR_ashrv8hi3, 0, IX86_BUILTIN_PSRAWI128, 0, 0 }, | |
12012 | { MASK_SSE2, CODE_FOR_ashrv4si3_ti, 0, IX86_BUILTIN_PSRAD128, 0, 0 }, | |
12013 | { MASK_SSE2, CODE_FOR_ashrv4si3, 0, IX86_BUILTIN_PSRADI128, 0, 0 }, | |
12014 | ||
12015 | { MASK_SSE2, CODE_FOR_sse2_pmaddwd, 0, IX86_BUILTIN_PMADDWD128, 0, 0 }, | |
12016 | ||
fbe5eb6d BS |
12017 | { MASK_SSE2, CODE_FOR_cvtsi2sd, 0, IX86_BUILTIN_CVTSI2SD, 0, 0 }, |
12018 | { MASK_SSE2, CODE_FOR_cvtsd2ss, 0, IX86_BUILTIN_CVTSD2SS, 0, 0 }, | |
12019 | { MASK_SSE2, CODE_FOR_cvtss2sd, 0, IX86_BUILTIN_CVTSS2SD, 0, 0 } | |
bd793c65 BS |
12020 | }; |
12021 | ||
8b60264b | 12022 | static const struct builtin_description bdesc_1arg[] = |
bd793c65 | 12023 | { |
fbe5eb6d BS |
12024 | { MASK_SSE1 | MASK_3DNOW_A, CODE_FOR_mmx_pmovmskb, 0, IX86_BUILTIN_PMOVMSKB, 0, 0 }, |
12025 | { MASK_SSE1, CODE_FOR_sse_movmskps, 0, IX86_BUILTIN_MOVMSKPS, 0, 0 }, | |
12026 | ||
12027 | { MASK_SSE1, CODE_FOR_sqrtv4sf2, 0, IX86_BUILTIN_SQRTPS, 0, 0 }, | |
12028 | { MASK_SSE1, CODE_FOR_rsqrtv4sf2, 0, IX86_BUILTIN_RSQRTPS, 0, 0 }, | |
12029 | { MASK_SSE1, CODE_FOR_rcpv4sf2, 0, IX86_BUILTIN_RCPPS, 0, 0 }, | |
12030 | ||
12031 | { MASK_SSE1, CODE_FOR_cvtps2pi, 0, IX86_BUILTIN_CVTPS2PI, 0, 0 }, | |
12032 | { MASK_SSE1, CODE_FOR_cvtss2si, 0, IX86_BUILTIN_CVTSS2SI, 0, 0 }, | |
12033 | { MASK_SSE1, CODE_FOR_cvttps2pi, 0, IX86_BUILTIN_CVTTPS2PI, 0, 0 }, | |
12034 | { MASK_SSE1, CODE_FOR_cvttss2si, 0, IX86_BUILTIN_CVTTSS2SI, 0, 0 }, | |
12035 | ||
12036 | { MASK_SSE2, CODE_FOR_sse2_pmovmskb, 0, IX86_BUILTIN_PMOVMSKB128, 0, 0 }, | |
12037 | { MASK_SSE2, CODE_FOR_sse2_movmskpd, 0, IX86_BUILTIN_MOVMSKPD, 0, 0 }, | |
12038 | { MASK_SSE2, CODE_FOR_sse2_movq2dq, 0, IX86_BUILTIN_MOVQ2DQ, 0, 0 }, | |
12039 | ||
12040 | { MASK_SSE2, CODE_FOR_sqrtv2df2, 0, IX86_BUILTIN_SQRTPD, 0, 0 }, | |
12041 | ||
12042 | { MASK_SSE2, CODE_FOR_cvtdq2pd, 0, IX86_BUILTIN_CVTDQ2PD, 0, 0 }, | |
12043 | { MASK_SSE2, CODE_FOR_cvtdq2ps, 0, IX86_BUILTIN_CVTDQ2PS, 0, 0 }, | |
bd793c65 | 12044 | |
fbe5eb6d BS |
12045 | { MASK_SSE2, CODE_FOR_cvtpd2dq, 0, IX86_BUILTIN_CVTPD2DQ, 0, 0 }, |
12046 | { MASK_SSE2, CODE_FOR_cvtpd2pi, 0, IX86_BUILTIN_CVTPD2PI, 0, 0 }, | |
12047 | { MASK_SSE2, CODE_FOR_cvtpd2ps, 0, IX86_BUILTIN_CVTPD2PS, 0, 0 }, | |
12048 | { MASK_SSE2, CODE_FOR_cvttpd2dq, 0, IX86_BUILTIN_CVTTPD2DQ, 0, 0 }, | |
12049 | { MASK_SSE2, CODE_FOR_cvttpd2pi, 0, IX86_BUILTIN_CVTTPD2PI, 0, 0 }, | |
bd793c65 | 12050 | |
fbe5eb6d | 12051 | { MASK_SSE2, CODE_FOR_cvtpi2pd, 0, IX86_BUILTIN_CVTPI2PD, 0, 0 }, |
bd793c65 | 12052 | |
fbe5eb6d BS |
12053 | { MASK_SSE2, CODE_FOR_cvtsd2si, 0, IX86_BUILTIN_CVTSD2SI, 0, 0 }, |
12054 | { MASK_SSE2, CODE_FOR_cvttsd2si, 0, IX86_BUILTIN_CVTTSD2SI, 0, 0 }, | |
12055 | ||
12056 | { MASK_SSE2, CODE_FOR_cvtps2dq, 0, IX86_BUILTIN_CVTPS2DQ, 0, 0 }, | |
12057 | { MASK_SSE2, CODE_FOR_cvtps2pd, 0, IX86_BUILTIN_CVTPS2PD, 0, 0 }, | |
12058 | { MASK_SSE2, CODE_FOR_cvttps2dq, 0, IX86_BUILTIN_CVTTPS2DQ, 0, 0 } | |
bd793c65 BS |
12059 | }; |
12060 | ||
f6155fda SS |
12061 | void |
12062 | ix86_init_builtins () | |
12063 | { | |
12064 | if (TARGET_MMX) | |
12065 | ix86_init_mmx_sse_builtins (); | |
12066 | } | |
12067 | ||
12068 | /* Set up all the MMX/SSE builtins. This is not called if TARGET_MMX | |
bd793c65 BS |
12069 | is zero. Otherwise, if TARGET_SSE is not set, only expand the MMX |
12070 | builtins. */ | |
e37af218 | 12071 | static void |
f6155fda | 12072 | ix86_init_mmx_sse_builtins () |
bd793c65 | 12073 | { |
8b60264b | 12074 | const struct builtin_description * d; |
77ebd435 | 12075 | size_t i; |
bd793c65 BS |
12076 | |
12077 | tree pchar_type_node = build_pointer_type (char_type_node); | |
12078 | tree pfloat_type_node = build_pointer_type (float_type_node); | |
12079 | tree pv2si_type_node = build_pointer_type (V2SI_type_node); | |
916b60b7 | 12080 | tree pv2di_type_node = build_pointer_type (V2DI_type_node); |
bd793c65 BS |
12081 | tree pdi_type_node = build_pointer_type (long_long_unsigned_type_node); |
12082 | ||
12083 | /* Comparisons. */ | |
12084 | tree int_ftype_v4sf_v4sf | |
b4de2f7d AH |
12085 | = build_function_type_list (integer_type_node, |
12086 | V4SF_type_node, V4SF_type_node, NULL_TREE); | |
bd793c65 | 12087 | tree v4si_ftype_v4sf_v4sf |
b4de2f7d AH |
12088 | = build_function_type_list (V4SI_type_node, |
12089 | V4SF_type_node, V4SF_type_node, NULL_TREE); | |
bd793c65 | 12090 | /* MMX/SSE/integer conversions. */ |
bd793c65 | 12091 | tree int_ftype_v4sf |
b4de2f7d AH |
12092 | = build_function_type_list (integer_type_node, |
12093 | V4SF_type_node, NULL_TREE); | |
bd793c65 | 12094 | tree int_ftype_v8qi |
b4de2f7d | 12095 | = build_function_type_list (integer_type_node, V8QI_type_node, NULL_TREE); |
bd793c65 | 12096 | tree v4sf_ftype_v4sf_int |
b4de2f7d AH |
12097 | = build_function_type_list (V4SF_type_node, |
12098 | V4SF_type_node, integer_type_node, NULL_TREE); | |
bd793c65 | 12099 | tree v4sf_ftype_v4sf_v2si |
b4de2f7d AH |
12100 | = build_function_type_list (V4SF_type_node, |
12101 | V4SF_type_node, V2SI_type_node, NULL_TREE); | |
bd793c65 | 12102 | tree int_ftype_v4hi_int |
b4de2f7d AH |
12103 | = build_function_type_list (integer_type_node, |
12104 | V4HI_type_node, integer_type_node, NULL_TREE); | |
bd793c65 | 12105 | tree v4hi_ftype_v4hi_int_int |
e7a60f56 | 12106 | = build_function_type_list (V4HI_type_node, V4HI_type_node, |
b4de2f7d AH |
12107 | integer_type_node, integer_type_node, |
12108 | NULL_TREE); | |
bd793c65 BS |
12109 | /* Miscellaneous. */ |
12110 | tree v8qi_ftype_v4hi_v4hi | |
b4de2f7d AH |
12111 | = build_function_type_list (V8QI_type_node, |
12112 | V4HI_type_node, V4HI_type_node, NULL_TREE); | |
bd793c65 | 12113 | tree v4hi_ftype_v2si_v2si |
b4de2f7d AH |
12114 | = build_function_type_list (V4HI_type_node, |
12115 | V2SI_type_node, V2SI_type_node, NULL_TREE); | |
bd793c65 | 12116 | tree v4sf_ftype_v4sf_v4sf_int |
b4de2f7d AH |
12117 | = build_function_type_list (V4SF_type_node, |
12118 | V4SF_type_node, V4SF_type_node, | |
12119 | integer_type_node, NULL_TREE); | |
bd793c65 | 12120 | tree v2si_ftype_v4hi_v4hi |
b4de2f7d AH |
12121 | = build_function_type_list (V2SI_type_node, |
12122 | V4HI_type_node, V4HI_type_node, NULL_TREE); | |
bd793c65 | 12123 | tree v4hi_ftype_v4hi_int |
b4de2f7d | 12124 | = build_function_type_list (V4HI_type_node, |
e7a60f56 | 12125 | V4HI_type_node, integer_type_node, NULL_TREE); |
bd793c65 | 12126 | tree v4hi_ftype_v4hi_di |
b4de2f7d AH |
12127 | = build_function_type_list (V4HI_type_node, |
12128 | V4HI_type_node, long_long_unsigned_type_node, | |
12129 | NULL_TREE); | |
bd793c65 | 12130 | tree v2si_ftype_v2si_di |
b4de2f7d AH |
12131 | = build_function_type_list (V2SI_type_node, |
12132 | V2SI_type_node, long_long_unsigned_type_node, | |
12133 | NULL_TREE); | |
bd793c65 | 12134 | tree void_ftype_void |
b4de2f7d | 12135 | = build_function_type (void_type_node, void_list_node); |
bd793c65 | 12136 | tree void_ftype_unsigned |
b4de2f7d | 12137 | = build_function_type_list (void_type_node, unsigned_type_node, NULL_TREE); |
bd793c65 | 12138 | tree unsigned_ftype_void |
b4de2f7d | 12139 | = build_function_type (unsigned_type_node, void_list_node); |
bd793c65 | 12140 | tree di_ftype_void |
b4de2f7d | 12141 | = build_function_type (long_long_unsigned_type_node, void_list_node); |
e37af218 | 12142 | tree v4sf_ftype_void |
b4de2f7d | 12143 | = build_function_type (V4SF_type_node, void_list_node); |
bd793c65 | 12144 | tree v2si_ftype_v4sf |
b4de2f7d | 12145 | = build_function_type_list (V2SI_type_node, V4SF_type_node, NULL_TREE); |
bd793c65 | 12146 | /* Loads/stores. */ |
bd793c65 | 12147 | tree void_ftype_v8qi_v8qi_pchar |
b4de2f7d AH |
12148 | = build_function_type_list (void_type_node, |
12149 | V8QI_type_node, V8QI_type_node, | |
12150 | pchar_type_node, NULL_TREE); | |
bd793c65 | 12151 | tree v4sf_ftype_pfloat |
b4de2f7d | 12152 | = build_function_type_list (V4SF_type_node, pfloat_type_node, NULL_TREE); |
bd793c65 BS |
12153 | /* @@@ the type is bogus */ |
12154 | tree v4sf_ftype_v4sf_pv2si | |
b4de2f7d AH |
12155 | = build_function_type_list (V4SF_type_node, |
12156 | V4SF_type_node, pv2di_type_node, NULL_TREE); | |
1255c85c | 12157 | tree void_ftype_pv2si_v4sf |
b4de2f7d AH |
12158 | = build_function_type_list (void_type_node, |
12159 | pv2di_type_node, V4SF_type_node, NULL_TREE); | |
bd793c65 | 12160 | tree void_ftype_pfloat_v4sf |
b4de2f7d AH |
12161 | = build_function_type_list (void_type_node, |
12162 | pfloat_type_node, V4SF_type_node, NULL_TREE); | |
bd793c65 | 12163 | tree void_ftype_pdi_di |
b4de2f7d AH |
12164 | = build_function_type_list (void_type_node, |
12165 | pdi_type_node, long_long_unsigned_type_node, | |
12166 | NULL_TREE); | |
916b60b7 | 12167 | tree void_ftype_pv2di_v2di |
b4de2f7d AH |
12168 | = build_function_type_list (void_type_node, |
12169 | pv2di_type_node, V2DI_type_node, NULL_TREE); | |
bd793c65 BS |
12170 | /* Normal vector unops. */ |
12171 | tree v4sf_ftype_v4sf | |
b4de2f7d | 12172 | = build_function_type_list (V4SF_type_node, V4SF_type_node, NULL_TREE); |
0f290768 | 12173 | |
bd793c65 BS |
12174 | /* Normal vector binops. */ |
12175 | tree v4sf_ftype_v4sf_v4sf | |
b4de2f7d AH |
12176 | = build_function_type_list (V4SF_type_node, |
12177 | V4SF_type_node, V4SF_type_node, NULL_TREE); | |
bd793c65 | 12178 | tree v8qi_ftype_v8qi_v8qi |
b4de2f7d AH |
12179 | = build_function_type_list (V8QI_type_node, |
12180 | V8QI_type_node, V8QI_type_node, NULL_TREE); | |
bd793c65 | 12181 | tree v4hi_ftype_v4hi_v4hi |
b4de2f7d AH |
12182 | = build_function_type_list (V4HI_type_node, |
12183 | V4HI_type_node, V4HI_type_node, NULL_TREE); | |
bd793c65 | 12184 | tree v2si_ftype_v2si_v2si |
b4de2f7d AH |
12185 | = build_function_type_list (V2SI_type_node, |
12186 | V2SI_type_node, V2SI_type_node, NULL_TREE); | |
bd793c65 | 12187 | tree di_ftype_di_di |
b4de2f7d AH |
12188 | = build_function_type_list (long_long_unsigned_type_node, |
12189 | long_long_unsigned_type_node, | |
12190 | long_long_unsigned_type_node, NULL_TREE); | |
bd793c65 | 12191 | |
47f339cf | 12192 | tree v2si_ftype_v2sf |
ae3aa00d | 12193 | = build_function_type_list (V2SI_type_node, V2SF_type_node, NULL_TREE); |
47f339cf | 12194 | tree v2sf_ftype_v2si |
b4de2f7d | 12195 | = build_function_type_list (V2SF_type_node, V2SI_type_node, NULL_TREE); |
47f339cf | 12196 | tree v2si_ftype_v2si |
b4de2f7d | 12197 | = build_function_type_list (V2SI_type_node, V2SI_type_node, NULL_TREE); |
47f339cf | 12198 | tree v2sf_ftype_v2sf |
b4de2f7d | 12199 | = build_function_type_list (V2SF_type_node, V2SF_type_node, NULL_TREE); |
47f339cf | 12200 | tree v2sf_ftype_v2sf_v2sf |
b4de2f7d AH |
12201 | = build_function_type_list (V2SF_type_node, |
12202 | V2SF_type_node, V2SF_type_node, NULL_TREE); | |
47f339cf | 12203 | tree v2si_ftype_v2sf_v2sf |
b4de2f7d AH |
12204 | = build_function_type_list (V2SI_type_node, |
12205 | V2SF_type_node, V2SF_type_node, NULL_TREE); | |
fbe5eb6d BS |
12206 | tree pint_type_node = build_pointer_type (integer_type_node); |
12207 | tree pdouble_type_node = build_pointer_type (double_type_node); | |
12208 | tree int_ftype_v2df_v2df | |
b4de2f7d AH |
12209 | = build_function_type_list (integer_type_node, |
12210 | V2DF_type_node, V2DF_type_node, NULL_TREE); | |
fbe5eb6d BS |
12211 | |
12212 | tree ti_ftype_void | |
b4de2f7d | 12213 | = build_function_type (intTI_type_node, void_list_node); |
fbe5eb6d | 12214 | tree ti_ftype_ti_ti |
b4de2f7d AH |
12215 | = build_function_type_list (intTI_type_node, |
12216 | intTI_type_node, intTI_type_node, NULL_TREE); | |
fbe5eb6d | 12217 | tree void_ftype_pvoid |
b4de2f7d | 12218 | = build_function_type_list (void_type_node, ptr_type_node, NULL_TREE); |
fbe5eb6d | 12219 | tree v2di_ftype_di |
b4de2f7d AH |
12220 | = build_function_type_list (V2DI_type_node, |
12221 | long_long_unsigned_type_node, NULL_TREE); | |
fbe5eb6d | 12222 | tree v4sf_ftype_v4si |
b4de2f7d | 12223 | = build_function_type_list (V4SF_type_node, V4SI_type_node, NULL_TREE); |
fbe5eb6d | 12224 | tree v4si_ftype_v4sf |
b4de2f7d | 12225 | = build_function_type_list (V4SI_type_node, V4SF_type_node, NULL_TREE); |
fbe5eb6d | 12226 | tree v2df_ftype_v4si |
b4de2f7d | 12227 | = build_function_type_list (V2DF_type_node, V4SI_type_node, NULL_TREE); |
fbe5eb6d | 12228 | tree v4si_ftype_v2df |
b4de2f7d | 12229 | = build_function_type_list (V4SI_type_node, V2DF_type_node, NULL_TREE); |
fbe5eb6d | 12230 | tree v2si_ftype_v2df |
b4de2f7d | 12231 | = build_function_type_list (V2SI_type_node, V2DF_type_node, NULL_TREE); |
fbe5eb6d | 12232 | tree v4sf_ftype_v2df |
b4de2f7d | 12233 | = build_function_type_list (V4SF_type_node, V2DF_type_node, NULL_TREE); |
fbe5eb6d | 12234 | tree v2df_ftype_v2si |
b4de2f7d | 12235 | = build_function_type_list (V2DF_type_node, V2SI_type_node, NULL_TREE); |
fbe5eb6d | 12236 | tree v2df_ftype_v4sf |
b4de2f7d | 12237 | = build_function_type_list (V2DF_type_node, V4SF_type_node, NULL_TREE); |
fbe5eb6d | 12238 | tree int_ftype_v2df |
b4de2f7d | 12239 | = build_function_type_list (integer_type_node, V2DF_type_node, NULL_TREE); |
fbe5eb6d | 12240 | tree v2df_ftype_v2df_int |
b4de2f7d AH |
12241 | = build_function_type_list (V2DF_type_node, |
12242 | V2DF_type_node, integer_type_node, NULL_TREE); | |
fbe5eb6d | 12243 | tree v4sf_ftype_v4sf_v2df |
b4de2f7d AH |
12244 | = build_function_type_list (V4SF_type_node, |
12245 | V4SF_type_node, V2DF_type_node, NULL_TREE); | |
fbe5eb6d | 12246 | tree v2df_ftype_v2df_v4sf |
b4de2f7d AH |
12247 | = build_function_type_list (V2DF_type_node, |
12248 | V2DF_type_node, V4SF_type_node, NULL_TREE); | |
fbe5eb6d | 12249 | tree v2df_ftype_v2df_v2df_int |
b4de2f7d AH |
12250 | = build_function_type_list (V2DF_type_node, |
12251 | V2DF_type_node, V2DF_type_node, | |
12252 | integer_type_node, | |
12253 | NULL_TREE); | |
fbe5eb6d | 12254 | tree v2df_ftype_v2df_pv2si |
b4de2f7d AH |
12255 | = build_function_type_list (V2DF_type_node, |
12256 | V2DF_type_node, pv2si_type_node, NULL_TREE); | |
fbe5eb6d | 12257 | tree void_ftype_pv2si_v2df |
b4de2f7d AH |
12258 | = build_function_type_list (void_type_node, |
12259 | pv2si_type_node, V2DF_type_node, NULL_TREE); | |
fbe5eb6d | 12260 | tree void_ftype_pdouble_v2df |
b4de2f7d AH |
12261 | = build_function_type_list (void_type_node, |
12262 | pdouble_type_node, V2DF_type_node, NULL_TREE); | |
fbe5eb6d | 12263 | tree void_ftype_pint_int |
b4de2f7d AH |
12264 | = build_function_type_list (void_type_node, |
12265 | pint_type_node, integer_type_node, NULL_TREE); | |
fbe5eb6d | 12266 | tree void_ftype_v16qi_v16qi_pchar |
b4de2f7d AH |
12267 | = build_function_type_list (void_type_node, |
12268 | V16QI_type_node, V16QI_type_node, | |
12269 | pchar_type_node, NULL_TREE); | |
fbe5eb6d | 12270 | tree v2df_ftype_pdouble |
b4de2f7d | 12271 | = build_function_type_list (V2DF_type_node, pdouble_type_node, NULL_TREE); |
fbe5eb6d | 12272 | tree v2df_ftype_v2df_v2df |
b4de2f7d AH |
12273 | = build_function_type_list (V2DF_type_node, |
12274 | V2DF_type_node, V2DF_type_node, NULL_TREE); | |
fbe5eb6d | 12275 | tree v16qi_ftype_v16qi_v16qi |
b4de2f7d AH |
12276 | = build_function_type_list (V16QI_type_node, |
12277 | V16QI_type_node, V16QI_type_node, NULL_TREE); | |
fbe5eb6d | 12278 | tree v8hi_ftype_v8hi_v8hi |
b4de2f7d AH |
12279 | = build_function_type_list (V8HI_type_node, |
12280 | V8HI_type_node, V8HI_type_node, NULL_TREE); | |
fbe5eb6d | 12281 | tree v4si_ftype_v4si_v4si |
b4de2f7d AH |
12282 | = build_function_type_list (V4SI_type_node, |
12283 | V4SI_type_node, V4SI_type_node, NULL_TREE); | |
fbe5eb6d | 12284 | tree v2di_ftype_v2di_v2di |
b4de2f7d AH |
12285 | = build_function_type_list (V2DI_type_node, |
12286 | V2DI_type_node, V2DI_type_node, NULL_TREE); | |
fbe5eb6d | 12287 | tree v2di_ftype_v2df_v2df |
b4de2f7d AH |
12288 | = build_function_type_list (V2DI_type_node, |
12289 | V2DF_type_node, V2DF_type_node, NULL_TREE); | |
fbe5eb6d | 12290 | tree v2df_ftype_v2df |
b4de2f7d | 12291 | = build_function_type_list (V2DF_type_node, V2DF_type_node, NULL_TREE); |
fbe5eb6d | 12292 | tree v2df_ftype_double |
b4de2f7d | 12293 | = build_function_type_list (V2DF_type_node, double_type_node, NULL_TREE); |
fbe5eb6d | 12294 | tree v2df_ftype_double_double |
b4de2f7d AH |
12295 | = build_function_type_list (V2DF_type_node, |
12296 | double_type_node, double_type_node, NULL_TREE); | |
fbe5eb6d | 12297 | tree int_ftype_v8hi_int |
b4de2f7d AH |
12298 | = build_function_type_list (integer_type_node, |
12299 | V8HI_type_node, integer_type_node, NULL_TREE); | |
fbe5eb6d | 12300 | tree v8hi_ftype_v8hi_int_int |
b4de2f7d AH |
12301 | = build_function_type_list (V8HI_type_node, |
12302 | V8HI_type_node, integer_type_node, | |
12303 | integer_type_node, NULL_TREE); | |
916b60b7 | 12304 | tree v2di_ftype_v2di_int |
b4de2f7d AH |
12305 | = build_function_type_list (V2DI_type_node, |
12306 | V2DI_type_node, integer_type_node, NULL_TREE); | |
fbe5eb6d | 12307 | tree v4si_ftype_v4si_int |
b4de2f7d AH |
12308 | = build_function_type_list (V4SI_type_node, |
12309 | V4SI_type_node, integer_type_node, NULL_TREE); | |
fbe5eb6d | 12310 | tree v8hi_ftype_v8hi_int |
b4de2f7d AH |
12311 | = build_function_type_list (V8HI_type_node, |
12312 | V8HI_type_node, integer_type_node, NULL_TREE); | |
916b60b7 | 12313 | tree v8hi_ftype_v8hi_v2di |
b4de2f7d AH |
12314 | = build_function_type_list (V8HI_type_node, |
12315 | V8HI_type_node, V2DI_type_node, NULL_TREE); | |
916b60b7 | 12316 | tree v4si_ftype_v4si_v2di |
b4de2f7d AH |
12317 | = build_function_type_list (V4SI_type_node, |
12318 | V4SI_type_node, V2DI_type_node, NULL_TREE); | |
916b60b7 | 12319 | tree v4si_ftype_v8hi_v8hi |
b4de2f7d AH |
12320 | = build_function_type_list (V4SI_type_node, |
12321 | V8HI_type_node, V8HI_type_node, NULL_TREE); | |
916b60b7 | 12322 | tree di_ftype_v8qi_v8qi |
b4de2f7d AH |
12323 | = build_function_type_list (long_long_unsigned_type_node, |
12324 | V8QI_type_node, V8QI_type_node, NULL_TREE); | |
916b60b7 | 12325 | tree v2di_ftype_v16qi_v16qi |
b4de2f7d AH |
12326 | = build_function_type_list (V2DI_type_node, |
12327 | V16QI_type_node, V16QI_type_node, NULL_TREE); | |
916b60b7 | 12328 | tree int_ftype_v16qi |
b4de2f7d | 12329 | = build_function_type_list (integer_type_node, V16QI_type_node, NULL_TREE); |
47f339cf | 12330 | |
bd793c65 BS |
12331 | /* Add all builtins that are more or less simple operations on two |
12332 | operands. */ | |
ca7558fc | 12333 | for (i = 0, d = bdesc_2arg; i < ARRAY_SIZE (bdesc_2arg); i++, d++) |
bd793c65 BS |
12334 | { |
12335 | /* Use one of the operands; the target can have a different mode for | |
12336 | mask-generating compares. */ | |
12337 | enum machine_mode mode; | |
12338 | tree type; | |
12339 | ||
12340 | if (d->name == 0) | |
12341 | continue; | |
12342 | mode = insn_data[d->icode].operand[1].mode; | |
12343 | ||
bd793c65 BS |
12344 | switch (mode) |
12345 | { | |
fbe5eb6d BS |
12346 | case V16QImode: |
12347 | type = v16qi_ftype_v16qi_v16qi; | |
12348 | break; | |
12349 | case V8HImode: | |
12350 | type = v8hi_ftype_v8hi_v8hi; | |
12351 | break; | |
12352 | case V4SImode: | |
12353 | type = v4si_ftype_v4si_v4si; | |
12354 | break; | |
12355 | case V2DImode: | |
12356 | type = v2di_ftype_v2di_v2di; | |
12357 | break; | |
12358 | case V2DFmode: | |
12359 | type = v2df_ftype_v2df_v2df; | |
12360 | break; | |
12361 | case TImode: | |
12362 | type = ti_ftype_ti_ti; | |
12363 | break; | |
bd793c65 BS |
12364 | case V4SFmode: |
12365 | type = v4sf_ftype_v4sf_v4sf; | |
12366 | break; | |
12367 | case V8QImode: | |
12368 | type = v8qi_ftype_v8qi_v8qi; | |
12369 | break; | |
12370 | case V4HImode: | |
12371 | type = v4hi_ftype_v4hi_v4hi; | |
12372 | break; | |
12373 | case V2SImode: | |
12374 | type = v2si_ftype_v2si_v2si; | |
12375 | break; | |
bd793c65 BS |
12376 | case DImode: |
12377 | type = di_ftype_di_di; | |
12378 | break; | |
12379 | ||
12380 | default: | |
12381 | abort (); | |
12382 | } | |
0f290768 | 12383 | |
bd793c65 BS |
12384 | /* Override for comparisons. */ |
12385 | if (d->icode == CODE_FOR_maskcmpv4sf3 | |
12386 | || d->icode == CODE_FOR_maskncmpv4sf3 | |
12387 | || d->icode == CODE_FOR_vmmaskcmpv4sf3 | |
12388 | || d->icode == CODE_FOR_vmmaskncmpv4sf3) | |
12389 | type = v4si_ftype_v4sf_v4sf; | |
12390 | ||
fbe5eb6d BS |
12391 | if (d->icode == CODE_FOR_maskcmpv2df3 |
12392 | || d->icode == CODE_FOR_maskncmpv2df3 | |
12393 | || d->icode == CODE_FOR_vmmaskcmpv2df3 | |
12394 | || d->icode == CODE_FOR_vmmaskncmpv2df3) | |
12395 | type = v2di_ftype_v2df_v2df; | |
12396 | ||
eeb06b1b | 12397 | def_builtin (d->mask, d->name, type, d->code); |
bd793c65 BS |
12398 | } |
12399 | ||
12400 | /* Add the remaining MMX insns with somewhat more complicated types. */ | |
eeb06b1b BS |
12401 | def_builtin (MASK_MMX, "__builtin_ia32_mmx_zero", di_ftype_void, IX86_BUILTIN_MMX_ZERO); |
12402 | def_builtin (MASK_MMX, "__builtin_ia32_emms", void_ftype_void, IX86_BUILTIN_EMMS); | |
12403 | def_builtin (MASK_MMX, "__builtin_ia32_ldmxcsr", void_ftype_unsigned, IX86_BUILTIN_LDMXCSR); | |
12404 | def_builtin (MASK_MMX, "__builtin_ia32_stmxcsr", unsigned_ftype_void, IX86_BUILTIN_STMXCSR); | |
12405 | def_builtin (MASK_MMX, "__builtin_ia32_psllw", v4hi_ftype_v4hi_di, IX86_BUILTIN_PSLLW); | |
12406 | def_builtin (MASK_MMX, "__builtin_ia32_pslld", v2si_ftype_v2si_di, IX86_BUILTIN_PSLLD); | |
12407 | def_builtin (MASK_MMX, "__builtin_ia32_psllq", di_ftype_di_di, IX86_BUILTIN_PSLLQ); | |
12408 | ||
12409 | def_builtin (MASK_MMX, "__builtin_ia32_psrlw", v4hi_ftype_v4hi_di, IX86_BUILTIN_PSRLW); | |
12410 | def_builtin (MASK_MMX, "__builtin_ia32_psrld", v2si_ftype_v2si_di, IX86_BUILTIN_PSRLD); | |
12411 | def_builtin (MASK_MMX, "__builtin_ia32_psrlq", di_ftype_di_di, IX86_BUILTIN_PSRLQ); | |
12412 | ||
12413 | def_builtin (MASK_MMX, "__builtin_ia32_psraw", v4hi_ftype_v4hi_di, IX86_BUILTIN_PSRAW); | |
12414 | def_builtin (MASK_MMX, "__builtin_ia32_psrad", v2si_ftype_v2si_di, IX86_BUILTIN_PSRAD); | |
12415 | ||
12416 | def_builtin (MASK_MMX, "__builtin_ia32_pshufw", v4hi_ftype_v4hi_int, IX86_BUILTIN_PSHUFW); | |
12417 | def_builtin (MASK_MMX, "__builtin_ia32_pmaddwd", v2si_ftype_v4hi_v4hi, IX86_BUILTIN_PMADDWD); | |
0f290768 | 12418 | |
bd793c65 | 12419 | /* comi/ucomi insns. */ |
ca7558fc | 12420 | for (i = 0, d = bdesc_comi; i < ARRAY_SIZE (bdesc_comi); i++, d++) |
fbe5eb6d BS |
12421 | if (d->mask == MASK_SSE2) |
12422 | def_builtin (d->mask, d->name, int_ftype_v2df_v2df, d->code); | |
12423 | else | |
12424 | def_builtin (d->mask, d->name, int_ftype_v4sf_v4sf, d->code); | |
bd793c65 | 12425 | |
1255c85c BS |
12426 | def_builtin (MASK_MMX, "__builtin_ia32_packsswb", v8qi_ftype_v4hi_v4hi, IX86_BUILTIN_PACKSSWB); |
12427 | def_builtin (MASK_MMX, "__builtin_ia32_packssdw", v4hi_ftype_v2si_v2si, IX86_BUILTIN_PACKSSDW); | |
12428 | def_builtin (MASK_MMX, "__builtin_ia32_packuswb", v8qi_ftype_v4hi_v4hi, IX86_BUILTIN_PACKUSWB); | |
bd793c65 | 12429 | |
fbe5eb6d BS |
12430 | def_builtin (MASK_SSE1, "__builtin_ia32_cvtpi2ps", v4sf_ftype_v4sf_v2si, IX86_BUILTIN_CVTPI2PS); |
12431 | def_builtin (MASK_SSE1, "__builtin_ia32_cvtps2pi", v2si_ftype_v4sf, IX86_BUILTIN_CVTPS2PI); | |
12432 | def_builtin (MASK_SSE1, "__builtin_ia32_cvtsi2ss", v4sf_ftype_v4sf_int, IX86_BUILTIN_CVTSI2SS); | |
12433 | def_builtin (MASK_SSE1, "__builtin_ia32_cvtss2si", int_ftype_v4sf, IX86_BUILTIN_CVTSS2SI); | |
12434 | def_builtin (MASK_SSE1, "__builtin_ia32_cvttps2pi", v2si_ftype_v4sf, IX86_BUILTIN_CVTTPS2PI); | |
12435 | def_builtin (MASK_SSE1, "__builtin_ia32_cvttss2si", int_ftype_v4sf, IX86_BUILTIN_CVTTSS2SI); | |
bd793c65 | 12436 | |
fbe5eb6d BS |
12437 | def_builtin (MASK_SSE1 | MASK_3DNOW_A, "__builtin_ia32_pextrw", int_ftype_v4hi_int, IX86_BUILTIN_PEXTRW); |
12438 | def_builtin (MASK_SSE1 | MASK_3DNOW_A, "__builtin_ia32_pinsrw", v4hi_ftype_v4hi_int_int, IX86_BUILTIN_PINSRW); | |
bd793c65 | 12439 | |
fbe5eb6d | 12440 | def_builtin (MASK_SSE1 | MASK_3DNOW_A, "__builtin_ia32_maskmovq", void_ftype_v8qi_v8qi_pchar, IX86_BUILTIN_MASKMOVQ); |
bd793c65 | 12441 | |
fbe5eb6d BS |
12442 | def_builtin (MASK_SSE1, "__builtin_ia32_loadaps", v4sf_ftype_pfloat, IX86_BUILTIN_LOADAPS); |
12443 | def_builtin (MASK_SSE1, "__builtin_ia32_loadups", v4sf_ftype_pfloat, IX86_BUILTIN_LOADUPS); | |
12444 | def_builtin (MASK_SSE1, "__builtin_ia32_loadss", v4sf_ftype_pfloat, IX86_BUILTIN_LOADSS); | |
12445 | def_builtin (MASK_SSE1, "__builtin_ia32_storeaps", void_ftype_pfloat_v4sf, IX86_BUILTIN_STOREAPS); | |
12446 | def_builtin (MASK_SSE1, "__builtin_ia32_storeups", void_ftype_pfloat_v4sf, IX86_BUILTIN_STOREUPS); | |
12447 | def_builtin (MASK_SSE1, "__builtin_ia32_storess", void_ftype_pfloat_v4sf, IX86_BUILTIN_STORESS); | |
bd793c65 | 12448 | |
fbe5eb6d BS |
12449 | def_builtin (MASK_SSE1, "__builtin_ia32_loadhps", v4sf_ftype_v4sf_pv2si, IX86_BUILTIN_LOADHPS); |
12450 | def_builtin (MASK_SSE1, "__builtin_ia32_loadlps", v4sf_ftype_v4sf_pv2si, IX86_BUILTIN_LOADLPS); | |
12451 | def_builtin (MASK_SSE1, "__builtin_ia32_storehps", void_ftype_pv2si_v4sf, IX86_BUILTIN_STOREHPS); | |
12452 | def_builtin (MASK_SSE1, "__builtin_ia32_storelps", void_ftype_pv2si_v4sf, IX86_BUILTIN_STORELPS); | |
bd793c65 | 12453 | |
fbe5eb6d BS |
12454 | def_builtin (MASK_SSE1, "__builtin_ia32_movmskps", int_ftype_v4sf, IX86_BUILTIN_MOVMSKPS); |
12455 | def_builtin (MASK_SSE1 | MASK_3DNOW_A, "__builtin_ia32_pmovmskb", int_ftype_v8qi, IX86_BUILTIN_PMOVMSKB); | |
12456 | def_builtin (MASK_SSE1, "__builtin_ia32_movntps", void_ftype_pfloat_v4sf, IX86_BUILTIN_MOVNTPS); | |
12457 | def_builtin (MASK_SSE1 | MASK_3DNOW_A, "__builtin_ia32_movntq", void_ftype_pdi_di, IX86_BUILTIN_MOVNTQ); | |
bd793c65 | 12458 | |
fbe5eb6d | 12459 | def_builtin (MASK_SSE1 | MASK_3DNOW_A, "__builtin_ia32_sfence", void_ftype_void, IX86_BUILTIN_SFENCE); |
bd793c65 | 12460 | |
916b60b7 | 12461 | def_builtin (MASK_SSE1 | MASK_3DNOW_A, "__builtin_ia32_psadbw", di_ftype_v8qi_v8qi, IX86_BUILTIN_PSADBW); |
bd793c65 | 12462 | |
fbe5eb6d BS |
12463 | def_builtin (MASK_SSE1, "__builtin_ia32_rcpps", v4sf_ftype_v4sf, IX86_BUILTIN_RCPPS); |
12464 | def_builtin (MASK_SSE1, "__builtin_ia32_rcpss", v4sf_ftype_v4sf, IX86_BUILTIN_RCPSS); | |
12465 | def_builtin (MASK_SSE1, "__builtin_ia32_rsqrtps", v4sf_ftype_v4sf, IX86_BUILTIN_RSQRTPS); | |
12466 | def_builtin (MASK_SSE1, "__builtin_ia32_rsqrtss", v4sf_ftype_v4sf, IX86_BUILTIN_RSQRTSS); | |
12467 | def_builtin (MASK_SSE1, "__builtin_ia32_sqrtps", v4sf_ftype_v4sf, IX86_BUILTIN_SQRTPS); | |
12468 | def_builtin (MASK_SSE1, "__builtin_ia32_sqrtss", v4sf_ftype_v4sf, IX86_BUILTIN_SQRTSS); | |
bd793c65 | 12469 | |
fbe5eb6d | 12470 | def_builtin (MASK_SSE1, "__builtin_ia32_shufps", v4sf_ftype_v4sf_v4sf_int, IX86_BUILTIN_SHUFPS); |
bd793c65 | 12471 | |
47f339cf BS |
12472 | /* Original 3DNow! */ |
12473 | def_builtin (MASK_3DNOW, "__builtin_ia32_femms", void_ftype_void, IX86_BUILTIN_FEMMS); | |
12474 | def_builtin (MASK_3DNOW, "__builtin_ia32_pavgusb", v8qi_ftype_v8qi_v8qi, IX86_BUILTIN_PAVGUSB); | |
12475 | def_builtin (MASK_3DNOW, "__builtin_ia32_pf2id", v2si_ftype_v2sf, IX86_BUILTIN_PF2ID); | |
12476 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfacc", v2sf_ftype_v2sf_v2sf, IX86_BUILTIN_PFACC); | |
12477 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfadd", v2sf_ftype_v2sf_v2sf, IX86_BUILTIN_PFADD); | |
12478 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfcmpeq", v2si_ftype_v2sf_v2sf, IX86_BUILTIN_PFCMPEQ); | |
12479 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfcmpge", v2si_ftype_v2sf_v2sf, IX86_BUILTIN_PFCMPGE); | |
12480 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfcmpgt", v2si_ftype_v2sf_v2sf, IX86_BUILTIN_PFCMPGT); | |
12481 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfmax", v2sf_ftype_v2sf_v2sf, IX86_BUILTIN_PFMAX); | |
12482 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfmin", v2sf_ftype_v2sf_v2sf, IX86_BUILTIN_PFMIN); | |
12483 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfmul", v2sf_ftype_v2sf_v2sf, IX86_BUILTIN_PFMUL); | |
12484 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfrcp", v2sf_ftype_v2sf, IX86_BUILTIN_PFRCP); | |
12485 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfrcpit1", v2sf_ftype_v2sf_v2sf, IX86_BUILTIN_PFRCPIT1); | |
12486 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfrcpit2", v2sf_ftype_v2sf_v2sf, IX86_BUILTIN_PFRCPIT2); | |
12487 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfrsqrt", v2sf_ftype_v2sf, IX86_BUILTIN_PFRSQRT); | |
12488 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfrsqit1", v2sf_ftype_v2sf_v2sf, IX86_BUILTIN_PFRSQIT1); | |
12489 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfsub", v2sf_ftype_v2sf_v2sf, IX86_BUILTIN_PFSUB); | |
12490 | def_builtin (MASK_3DNOW, "__builtin_ia32_pfsubr", v2sf_ftype_v2sf_v2sf, IX86_BUILTIN_PFSUBR); | |
12491 | def_builtin (MASK_3DNOW, "__builtin_ia32_pi2fd", v2sf_ftype_v2si, IX86_BUILTIN_PI2FD); | |
12492 | def_builtin (MASK_3DNOW, "__builtin_ia32_pmulhrw", v4hi_ftype_v4hi_v4hi, IX86_BUILTIN_PMULHRW); | |
47f339cf BS |
12493 | |
12494 | /* 3DNow! extension as used in the Athlon CPU. */ | |
12495 | def_builtin (MASK_3DNOW_A, "__builtin_ia32_pf2iw", v2si_ftype_v2sf, IX86_BUILTIN_PF2IW); | |
12496 | def_builtin (MASK_3DNOW_A, "__builtin_ia32_pfnacc", v2sf_ftype_v2sf_v2sf, IX86_BUILTIN_PFNACC); | |
12497 | def_builtin (MASK_3DNOW_A, "__builtin_ia32_pfpnacc", v2sf_ftype_v2sf_v2sf, IX86_BUILTIN_PFPNACC); | |
12498 | def_builtin (MASK_3DNOW_A, "__builtin_ia32_pi2fw", v2sf_ftype_v2si, IX86_BUILTIN_PI2FW); | |
12499 | def_builtin (MASK_3DNOW_A, "__builtin_ia32_pswapdsf", v2sf_ftype_v2sf, IX86_BUILTIN_PSWAPDSF); | |
12500 | def_builtin (MASK_3DNOW_A, "__builtin_ia32_pswapdsi", v2si_ftype_v2si, IX86_BUILTIN_PSWAPDSI); | |
12501 | ||
fbe5eb6d BS |
12502 | def_builtin (MASK_SSE1, "__builtin_ia32_setzerops", v4sf_ftype_void, IX86_BUILTIN_SSE_ZERO); |
12503 | ||
12504 | /* SSE2 */ | |
12505 | def_builtin (MASK_SSE2, "__builtin_ia32_pextrw128", int_ftype_v8hi_int, IX86_BUILTIN_PEXTRW128); | |
12506 | def_builtin (MASK_SSE2, "__builtin_ia32_pinsrw128", v8hi_ftype_v8hi_int_int, IX86_BUILTIN_PINSRW128); | |
12507 | ||
12508 | def_builtin (MASK_SSE2, "__builtin_ia32_maskmovdqu", void_ftype_v16qi_v16qi_pchar, IX86_BUILTIN_MASKMOVDQU); | |
12509 | def_builtin (MASK_SSE2, "__builtin_ia32_movq2dq", v2di_ftype_di, IX86_BUILTIN_MOVQ2DQ); | |
12510 | ||
12511 | def_builtin (MASK_SSE2, "__builtin_ia32_loadapd", v2df_ftype_pdouble, IX86_BUILTIN_LOADAPD); | |
12512 | def_builtin (MASK_SSE2, "__builtin_ia32_loadupd", v2df_ftype_pdouble, IX86_BUILTIN_LOADUPD); | |
12513 | def_builtin (MASK_SSE2, "__builtin_ia32_loadsd", v2df_ftype_pdouble, IX86_BUILTIN_LOADSD); | |
12514 | def_builtin (MASK_SSE2, "__builtin_ia32_storeapd", void_ftype_pdouble_v2df, IX86_BUILTIN_STOREAPD); | |
12515 | def_builtin (MASK_SSE2, "__builtin_ia32_storeupd", void_ftype_pdouble_v2df, IX86_BUILTIN_STOREUPD); | |
12516 | def_builtin (MASK_SSE2, "__builtin_ia32_storesd", void_ftype_pdouble_v2df, IX86_BUILTIN_STORESD); | |
12517 | ||
12518 | def_builtin (MASK_SSE2, "__builtin_ia32_loadhpd", v2df_ftype_v2df_pv2si, IX86_BUILTIN_LOADHPD); | |
12519 | def_builtin (MASK_SSE2, "__builtin_ia32_loadlpd", v2df_ftype_v2df_pv2si, IX86_BUILTIN_LOADLPD); | |
12520 | def_builtin (MASK_SSE2, "__builtin_ia32_storehpd", void_ftype_pv2si_v2df, IX86_BUILTIN_STOREHPD); | |
12521 | def_builtin (MASK_SSE2, "__builtin_ia32_storelpd", void_ftype_pv2si_v2df, IX86_BUILTIN_STORELPD); | |
12522 | ||
12523 | def_builtin (MASK_SSE2, "__builtin_ia32_movmskpd", int_ftype_v2df, IX86_BUILTIN_MOVMSKPD); | |
916b60b7 | 12524 | def_builtin (MASK_SSE2, "__builtin_ia32_pmovmskb128", int_ftype_v16qi, IX86_BUILTIN_PMOVMSKB128); |
fbe5eb6d BS |
12525 | def_builtin (MASK_SSE2, "__builtin_ia32_movnti", void_ftype_pint_int, IX86_BUILTIN_MOVNTI); |
12526 | def_builtin (MASK_SSE2, "__builtin_ia32_movntpd", void_ftype_pdouble_v2df, IX86_BUILTIN_MOVNTPD); | |
916b60b7 | 12527 | def_builtin (MASK_SSE2, "__builtin_ia32_movntdq", void_ftype_pv2di_v2di, IX86_BUILTIN_MOVNTDQ); |
fbe5eb6d BS |
12528 | |
12529 | def_builtin (MASK_SSE2, "__builtin_ia32_pshufd", v4si_ftype_v4si_int, IX86_BUILTIN_PSHUFD); | |
12530 | def_builtin (MASK_SSE2, "__builtin_ia32_pshuflw", v8hi_ftype_v8hi_int, IX86_BUILTIN_PSHUFLW); | |
12531 | def_builtin (MASK_SSE2, "__builtin_ia32_pshufhw", v8hi_ftype_v8hi_int, IX86_BUILTIN_PSHUFHW); | |
916b60b7 | 12532 | def_builtin (MASK_SSE2, "__builtin_ia32_psadbw128", v2di_ftype_v16qi_v16qi, IX86_BUILTIN_PSADBW128); |
fbe5eb6d BS |
12533 | |
12534 | def_builtin (MASK_SSE2, "__builtin_ia32_sqrtpd", v2df_ftype_v2df, IX86_BUILTIN_SQRTPD); | |
12535 | def_builtin (MASK_SSE2, "__builtin_ia32_sqrtsd", v2df_ftype_v2df, IX86_BUILTIN_SQRTSD); | |
12536 | ||
12537 | def_builtin (MASK_SSE2, "__builtin_ia32_shufpd", v2df_ftype_v2df_v2df_int, IX86_BUILTIN_SHUFPD); | |
12538 | ||
12539 | def_builtin (MASK_SSE2, "__builtin_ia32_cvtdq2pd", v2df_ftype_v4si, IX86_BUILTIN_CVTDQ2PD); | |
916b60b7 | 12540 | def_builtin (MASK_SSE2, "__builtin_ia32_cvtdq2ps", v4sf_ftype_v4si, IX86_BUILTIN_CVTDQ2PS); |
fbe5eb6d BS |
12541 | |
12542 | def_builtin (MASK_SSE2, "__builtin_ia32_cvtpd2dq", v4si_ftype_v2df, IX86_BUILTIN_CVTPD2DQ); | |
12543 | def_builtin (MASK_SSE2, "__builtin_ia32_cvtpd2pi", v2si_ftype_v2df, IX86_BUILTIN_CVTPD2PI); | |
12544 | def_builtin (MASK_SSE2, "__builtin_ia32_cvtpd2ps", v4sf_ftype_v2df, IX86_BUILTIN_CVTPD2PS); | |
12545 | def_builtin (MASK_SSE2, "__builtin_ia32_cvttpd2dq", v4si_ftype_v2df, IX86_BUILTIN_CVTTPD2DQ); | |
12546 | def_builtin (MASK_SSE2, "__builtin_ia32_cvttpd2pi", v2si_ftype_v2df, IX86_BUILTIN_CVTTPD2PI); | |
12547 | ||
12548 | def_builtin (MASK_SSE2, "__builtin_ia32_cvtpi2pd", v2df_ftype_v2si, IX86_BUILTIN_CVTPI2PD); | |
12549 | ||
12550 | def_builtin (MASK_SSE2, "__builtin_ia32_cvtsd2si", int_ftype_v2df, IX86_BUILTIN_CVTSD2SI); | |
12551 | def_builtin (MASK_SSE2, "__builtin_ia32_cvttsd2si", int_ftype_v2df, IX86_BUILTIN_CVTTSD2SI); | |
12552 | ||
12553 | def_builtin (MASK_SSE2, "__builtin_ia32_cvtps2dq", v4si_ftype_v4sf, IX86_BUILTIN_CVTPS2DQ); | |
12554 | def_builtin (MASK_SSE2, "__builtin_ia32_cvtps2pd", v2df_ftype_v4sf, IX86_BUILTIN_CVTPS2PD); | |
12555 | def_builtin (MASK_SSE2, "__builtin_ia32_cvttps2dq", v4si_ftype_v4sf, IX86_BUILTIN_CVTTPS2DQ); | |
12556 | ||
12557 | def_builtin (MASK_SSE2, "__builtin_ia32_cvtsi2sd", v2df_ftype_v2df_int, IX86_BUILTIN_CVTSI2SD); | |
12558 | def_builtin (MASK_SSE2, "__builtin_ia32_cvtsd2ss", v4sf_ftype_v4sf_v2df, IX86_BUILTIN_CVTSD2SS); | |
12559 | def_builtin (MASK_SSE2, "__builtin_ia32_cvtss2sd", v2df_ftype_v2df_v4sf, IX86_BUILTIN_CVTSS2SD); | |
12560 | ||
12561 | def_builtin (MASK_SSE2, "__builtin_ia32_setpd1", v2df_ftype_double, IX86_BUILTIN_SETPD1); | |
12562 | def_builtin (MASK_SSE2, "__builtin_ia32_setpd", v2df_ftype_double_double, IX86_BUILTIN_SETPD); | |
12563 | def_builtin (MASK_SSE2, "__builtin_ia32_setzeropd", ti_ftype_void, IX86_BUILTIN_CLRPD); | |
12564 | def_builtin (MASK_SSE2, "__builtin_ia32_loadpd1", v2df_ftype_pdouble, IX86_BUILTIN_LOADPD1); | |
12565 | def_builtin (MASK_SSE2, "__builtin_ia32_loadrpd", v2df_ftype_pdouble, IX86_BUILTIN_LOADRPD); | |
12566 | def_builtin (MASK_SSE2, "__builtin_ia32_storepd1", void_ftype_pdouble_v2df, IX86_BUILTIN_STOREPD1); | |
12567 | def_builtin (MASK_SSE2, "__builtin_ia32_storerpd", void_ftype_pdouble_v2df, IX86_BUILTIN_STORERPD); | |
12568 | ||
12569 | def_builtin (MASK_SSE2, "__builtin_ia32_clflush", void_ftype_pvoid, IX86_BUILTIN_CLFLUSH); | |
12570 | def_builtin (MASK_SSE2, "__builtin_ia32_lfence", void_ftype_void, IX86_BUILTIN_LFENCE); | |
12571 | def_builtin (MASK_SSE2, "__builtin_ia32_mfence", void_ftype_void, IX86_BUILTIN_MFENCE); | |
916b60b7 BS |
12572 | |
12573 | def_builtin (MASK_SSE2, "__builtin_ia32_psllw128", v8hi_ftype_v8hi_v2di, IX86_BUILTIN_PSLLW128); | |
12574 | def_builtin (MASK_SSE2, "__builtin_ia32_pslld128", v4si_ftype_v4si_v2di, IX86_BUILTIN_PSLLD128); | |
12575 | def_builtin (MASK_SSE2, "__builtin_ia32_psllq128", v2di_ftype_v2di_v2di, IX86_BUILTIN_PSLLQ128); | |
12576 | ||
12577 | def_builtin (MASK_SSE2, "__builtin_ia32_psrlw128", v8hi_ftype_v8hi_v2di, IX86_BUILTIN_PSRLW128); | |
12578 | def_builtin (MASK_SSE2, "__builtin_ia32_psrld128", v4si_ftype_v4si_v2di, IX86_BUILTIN_PSRLD128); | |
12579 | def_builtin (MASK_SSE2, "__builtin_ia32_psrlq128", v2di_ftype_v2di_v2di, IX86_BUILTIN_PSRLQ128); | |
12580 | ||
12581 | def_builtin (MASK_SSE2, "__builtin_ia32_psraw128", v8hi_ftype_v8hi_v2di, IX86_BUILTIN_PSRAW128); | |
12582 | def_builtin (MASK_SSE2, "__builtin_ia32_psrad128", v4si_ftype_v4si_v2di, IX86_BUILTIN_PSRAD128); | |
12583 | ||
12584 | def_builtin (MASK_SSE2, "__builtin_ia32_psllwi128", v8hi_ftype_v8hi_int, IX86_BUILTIN_PSLLWI128); | |
12585 | def_builtin (MASK_SSE2, "__builtin_ia32_pslldi128", v4si_ftype_v4si_int, IX86_BUILTIN_PSLLDI128); | |
12586 | def_builtin (MASK_SSE2, "__builtin_ia32_psllqi128", v2di_ftype_v2di_int, IX86_BUILTIN_PSLLQI128); | |
12587 | ||
12588 | def_builtin (MASK_SSE2, "__builtin_ia32_psrlwi128", v8hi_ftype_v8hi_int, IX86_BUILTIN_PSRLWI128); | |
12589 | def_builtin (MASK_SSE2, "__builtin_ia32_psrldi128", v4si_ftype_v4si_int, IX86_BUILTIN_PSRLDI128); | |
12590 | def_builtin (MASK_SSE2, "__builtin_ia32_psrlqi128", v2di_ftype_v2di_int, IX86_BUILTIN_PSRLQI128); | |
12591 | ||
12592 | def_builtin (MASK_SSE2, "__builtin_ia32_psrawi128", v8hi_ftype_v8hi_int, IX86_BUILTIN_PSRAWI128); | |
12593 | def_builtin (MASK_SSE2, "__builtin_ia32_psradi128", v4si_ftype_v4si_int, IX86_BUILTIN_PSRADI128); | |
12594 | ||
12595 | def_builtin (MASK_SSE2, "__builtin_ia32_pmaddwd128", v4si_ftype_v8hi_v8hi, IX86_BUILTIN_PMADDWD128); | |
bd793c65 BS |
12596 | } |
12597 | ||
12598 | /* Errors in the source file can cause expand_expr to return const0_rtx | |
12599 | where we expect a vector. To avoid crashing, use one of the vector | |
12600 | clear instructions. */ | |
12601 | static rtx | |
12602 | safe_vector_operand (x, mode) | |
12603 | rtx x; | |
12604 | enum machine_mode mode; | |
12605 | { | |
12606 | if (x != const0_rtx) | |
12607 | return x; | |
12608 | x = gen_reg_rtx (mode); | |
12609 | ||
47f339cf | 12610 | if (VALID_MMX_REG_MODE (mode) || VALID_MMX_REG_MODE_3DNOW (mode)) |
bd793c65 BS |
12611 | emit_insn (gen_mmx_clrdi (mode == DImode ? x |
12612 | : gen_rtx_SUBREG (DImode, x, 0))); | |
12613 | else | |
e37af218 RH |
12614 | emit_insn (gen_sse_clrv4sf (mode == V4SFmode ? x |
12615 | : gen_rtx_SUBREG (V4SFmode, x, 0))); | |
bd793c65 BS |
12616 | return x; |
12617 | } | |
12618 | ||
12619 | /* Subroutine of ix86_expand_builtin to take care of binop insns. */ | |
12620 | ||
12621 | static rtx | |
12622 | ix86_expand_binop_builtin (icode, arglist, target) | |
12623 | enum insn_code icode; | |
12624 | tree arglist; | |
12625 | rtx target; | |
12626 | { | |
12627 | rtx pat; | |
12628 | tree arg0 = TREE_VALUE (arglist); | |
12629 | tree arg1 = TREE_VALUE (TREE_CHAIN (arglist)); | |
12630 | rtx op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
12631 | rtx op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0); | |
12632 | enum machine_mode tmode = insn_data[icode].operand[0].mode; | |
12633 | enum machine_mode mode0 = insn_data[icode].operand[1].mode; | |
12634 | enum machine_mode mode1 = insn_data[icode].operand[2].mode; | |
12635 | ||
12636 | if (VECTOR_MODE_P (mode0)) | |
12637 | op0 = safe_vector_operand (op0, mode0); | |
12638 | if (VECTOR_MODE_P (mode1)) | |
12639 | op1 = safe_vector_operand (op1, mode1); | |
12640 | ||
12641 | if (! target | |
12642 | || GET_MODE (target) != tmode | |
12643 | || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) | |
12644 | target = gen_reg_rtx (tmode); | |
12645 | ||
12646 | /* In case the insn wants input operands in modes different from | |
12647 | the result, abort. */ | |
12648 | if (GET_MODE (op0) != mode0 || GET_MODE (op1) != mode1) | |
12649 | abort (); | |
12650 | ||
12651 | if (! (*insn_data[icode].operand[1].predicate) (op0, mode0)) | |
12652 | op0 = copy_to_mode_reg (mode0, op0); | |
12653 | if (! (*insn_data[icode].operand[2].predicate) (op1, mode1)) | |
12654 | op1 = copy_to_mode_reg (mode1, op1); | |
12655 | ||
59bef189 RH |
12656 | /* In the commutative cases, both op0 and op1 are nonimmediate_operand, |
12657 | yet one of the two must not be a memory. This is normally enforced | |
12658 | by expanders, but we didn't bother to create one here. */ | |
12659 | if (GET_CODE (op0) == MEM && GET_CODE (op1) == MEM) | |
12660 | op0 = copy_to_mode_reg (mode0, op0); | |
12661 | ||
bd793c65 BS |
12662 | pat = GEN_FCN (icode) (target, op0, op1); |
12663 | if (! pat) | |
12664 | return 0; | |
12665 | emit_insn (pat); | |
12666 | return target; | |
12667 | } | |
12668 | ||
12669 | /* Subroutine of ix86_expand_builtin to take care of stores. */ | |
12670 | ||
12671 | static rtx | |
e37af218 | 12672 | ix86_expand_store_builtin (icode, arglist) |
bd793c65 BS |
12673 | enum insn_code icode; |
12674 | tree arglist; | |
bd793c65 BS |
12675 | { |
12676 | rtx pat; | |
12677 | tree arg0 = TREE_VALUE (arglist); | |
12678 | tree arg1 = TREE_VALUE (TREE_CHAIN (arglist)); | |
12679 | rtx op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
12680 | rtx op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0); | |
12681 | enum machine_mode mode0 = insn_data[icode].operand[0].mode; | |
12682 | enum machine_mode mode1 = insn_data[icode].operand[1].mode; | |
12683 | ||
12684 | if (VECTOR_MODE_P (mode1)) | |
12685 | op1 = safe_vector_operand (op1, mode1); | |
12686 | ||
12687 | op0 = gen_rtx_MEM (mode0, copy_to_mode_reg (Pmode, op0)); | |
59bef189 RH |
12688 | |
12689 | if (! (*insn_data[icode].operand[1].predicate) (op1, mode1)) | |
12690 | op1 = copy_to_mode_reg (mode1, op1); | |
12691 | ||
bd793c65 BS |
12692 | pat = GEN_FCN (icode) (op0, op1); |
12693 | if (pat) | |
12694 | emit_insn (pat); | |
12695 | return 0; | |
12696 | } | |
12697 | ||
12698 | /* Subroutine of ix86_expand_builtin to take care of unop insns. */ | |
12699 | ||
12700 | static rtx | |
12701 | ix86_expand_unop_builtin (icode, arglist, target, do_load) | |
12702 | enum insn_code icode; | |
12703 | tree arglist; | |
12704 | rtx target; | |
12705 | int do_load; | |
12706 | { | |
12707 | rtx pat; | |
12708 | tree arg0 = TREE_VALUE (arglist); | |
12709 | rtx op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
12710 | enum machine_mode tmode = insn_data[icode].operand[0].mode; | |
12711 | enum machine_mode mode0 = insn_data[icode].operand[1].mode; | |
12712 | ||
12713 | if (! target | |
12714 | || GET_MODE (target) != tmode | |
12715 | || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) | |
12716 | target = gen_reg_rtx (tmode); | |
12717 | if (do_load) | |
12718 | op0 = gen_rtx_MEM (mode0, copy_to_mode_reg (Pmode, op0)); | |
12719 | else | |
12720 | { | |
12721 | if (VECTOR_MODE_P (mode0)) | |
12722 | op0 = safe_vector_operand (op0, mode0); | |
12723 | ||
12724 | if (! (*insn_data[icode].operand[1].predicate) (op0, mode0)) | |
12725 | op0 = copy_to_mode_reg (mode0, op0); | |
12726 | } | |
12727 | ||
12728 | pat = GEN_FCN (icode) (target, op0); | |
12729 | if (! pat) | |
12730 | return 0; | |
12731 | emit_insn (pat); | |
12732 | return target; | |
12733 | } | |
12734 | ||
12735 | /* Subroutine of ix86_expand_builtin to take care of three special unop insns: | |
12736 | sqrtss, rsqrtss, rcpss. */ | |
12737 | ||
12738 | static rtx | |
12739 | ix86_expand_unop1_builtin (icode, arglist, target) | |
12740 | enum insn_code icode; | |
12741 | tree arglist; | |
12742 | rtx target; | |
12743 | { | |
12744 | rtx pat; | |
12745 | tree arg0 = TREE_VALUE (arglist); | |
59bef189 | 12746 | rtx op1, op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); |
bd793c65 BS |
12747 | enum machine_mode tmode = insn_data[icode].operand[0].mode; |
12748 | enum machine_mode mode0 = insn_data[icode].operand[1].mode; | |
12749 | ||
12750 | if (! target | |
12751 | || GET_MODE (target) != tmode | |
12752 | || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) | |
12753 | target = gen_reg_rtx (tmode); | |
12754 | ||
12755 | if (VECTOR_MODE_P (mode0)) | |
12756 | op0 = safe_vector_operand (op0, mode0); | |
12757 | ||
12758 | if (! (*insn_data[icode].operand[1].predicate) (op0, mode0)) | |
12759 | op0 = copy_to_mode_reg (mode0, op0); | |
fce5a9f2 | 12760 | |
59bef189 RH |
12761 | op1 = op0; |
12762 | if (! (*insn_data[icode].operand[2].predicate) (op1, mode0)) | |
12763 | op1 = copy_to_mode_reg (mode0, op1); | |
fce5a9f2 | 12764 | |
59bef189 | 12765 | pat = GEN_FCN (icode) (target, op0, op1); |
bd793c65 BS |
12766 | if (! pat) |
12767 | return 0; | |
12768 | emit_insn (pat); | |
12769 | return target; | |
12770 | } | |
12771 | ||
12772 | /* Subroutine of ix86_expand_builtin to take care of comparison insns. */ | |
12773 | ||
12774 | static rtx | |
12775 | ix86_expand_sse_compare (d, arglist, target) | |
8b60264b | 12776 | const struct builtin_description *d; |
bd793c65 BS |
12777 | tree arglist; |
12778 | rtx target; | |
12779 | { | |
12780 | rtx pat; | |
12781 | tree arg0 = TREE_VALUE (arglist); | |
12782 | tree arg1 = TREE_VALUE (TREE_CHAIN (arglist)); | |
12783 | rtx op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
12784 | rtx op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0); | |
12785 | rtx op2; | |
12786 | enum machine_mode tmode = insn_data[d->icode].operand[0].mode; | |
12787 | enum machine_mode mode0 = insn_data[d->icode].operand[1].mode; | |
12788 | enum machine_mode mode1 = insn_data[d->icode].operand[2].mode; | |
12789 | enum rtx_code comparison = d->comparison; | |
12790 | ||
12791 | if (VECTOR_MODE_P (mode0)) | |
12792 | op0 = safe_vector_operand (op0, mode0); | |
12793 | if (VECTOR_MODE_P (mode1)) | |
12794 | op1 = safe_vector_operand (op1, mode1); | |
12795 | ||
12796 | /* Swap operands if we have a comparison that isn't available in | |
12797 | hardware. */ | |
12798 | if (d->flag) | |
12799 | { | |
21e1b5f1 BS |
12800 | rtx tmp = gen_reg_rtx (mode1); |
12801 | emit_move_insn (tmp, op1); | |
bd793c65 | 12802 | op1 = op0; |
21e1b5f1 | 12803 | op0 = tmp; |
bd793c65 | 12804 | } |
21e1b5f1 BS |
12805 | |
12806 | if (! target | |
12807 | || GET_MODE (target) != tmode | |
12808 | || ! (*insn_data[d->icode].operand[0].predicate) (target, tmode)) | |
bd793c65 BS |
12809 | target = gen_reg_rtx (tmode); |
12810 | ||
12811 | if (! (*insn_data[d->icode].operand[1].predicate) (op0, mode0)) | |
12812 | op0 = copy_to_mode_reg (mode0, op0); | |
12813 | if (! (*insn_data[d->icode].operand[2].predicate) (op1, mode1)) | |
12814 | op1 = copy_to_mode_reg (mode1, op1); | |
12815 | ||
12816 | op2 = gen_rtx_fmt_ee (comparison, mode0, op0, op1); | |
12817 | pat = GEN_FCN (d->icode) (target, op0, op1, op2); | |
12818 | if (! pat) | |
12819 | return 0; | |
12820 | emit_insn (pat); | |
12821 | return target; | |
12822 | } | |
12823 | ||
12824 | /* Subroutine of ix86_expand_builtin to take care of comi insns. */ | |
12825 | ||
12826 | static rtx | |
12827 | ix86_expand_sse_comi (d, arglist, target) | |
8b60264b | 12828 | const struct builtin_description *d; |
bd793c65 BS |
12829 | tree arglist; |
12830 | rtx target; | |
12831 | { | |
12832 | rtx pat; | |
12833 | tree arg0 = TREE_VALUE (arglist); | |
12834 | tree arg1 = TREE_VALUE (TREE_CHAIN (arglist)); | |
12835 | rtx op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
12836 | rtx op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0); | |
12837 | rtx op2; | |
12838 | enum machine_mode mode0 = insn_data[d->icode].operand[0].mode; | |
12839 | enum machine_mode mode1 = insn_data[d->icode].operand[1].mode; | |
12840 | enum rtx_code comparison = d->comparison; | |
12841 | ||
12842 | if (VECTOR_MODE_P (mode0)) | |
12843 | op0 = safe_vector_operand (op0, mode0); | |
12844 | if (VECTOR_MODE_P (mode1)) | |
12845 | op1 = safe_vector_operand (op1, mode1); | |
12846 | ||
12847 | /* Swap operands if we have a comparison that isn't available in | |
12848 | hardware. */ | |
12849 | if (d->flag) | |
12850 | { | |
12851 | rtx tmp = op1; | |
12852 | op1 = op0; | |
12853 | op0 = tmp; | |
bd793c65 BS |
12854 | } |
12855 | ||
12856 | target = gen_reg_rtx (SImode); | |
12857 | emit_move_insn (target, const0_rtx); | |
12858 | target = gen_rtx_SUBREG (QImode, target, 0); | |
12859 | ||
12860 | if (! (*insn_data[d->icode].operand[0].predicate) (op0, mode0)) | |
12861 | op0 = copy_to_mode_reg (mode0, op0); | |
12862 | if (! (*insn_data[d->icode].operand[1].predicate) (op1, mode1)) | |
12863 | op1 = copy_to_mode_reg (mode1, op1); | |
12864 | ||
12865 | op2 = gen_rtx_fmt_ee (comparison, mode0, op0, op1); | |
12866 | pat = GEN_FCN (d->icode) (op0, op1, op2); | |
12867 | if (! pat) | |
12868 | return 0; | |
12869 | emit_insn (pat); | |
29628f27 BS |
12870 | emit_insn (gen_rtx_SET (VOIDmode, |
12871 | gen_rtx_STRICT_LOW_PART (VOIDmode, target), | |
12872 | gen_rtx_fmt_ee (comparison, QImode, | |
12873 | gen_rtx_REG (CCmode, FLAGS_REG), | |
12874 | const0_rtx))); | |
bd793c65 | 12875 | |
6f1a6c5b | 12876 | return SUBREG_REG (target); |
bd793c65 BS |
12877 | } |
12878 | ||
12879 | /* Expand an expression EXP that calls a built-in function, | |
12880 | with result going to TARGET if that's convenient | |
12881 | (and in mode MODE if that's convenient). | |
12882 | SUBTARGET may be used as the target for computing one of EXP's operands. | |
12883 | IGNORE is nonzero if the value is to be ignored. */ | |
12884 | ||
12885 | rtx | |
12886 | ix86_expand_builtin (exp, target, subtarget, mode, ignore) | |
12887 | tree exp; | |
12888 | rtx target; | |
12889 | rtx subtarget ATTRIBUTE_UNUSED; | |
12890 | enum machine_mode mode ATTRIBUTE_UNUSED; | |
12891 | int ignore ATTRIBUTE_UNUSED; | |
12892 | { | |
8b60264b | 12893 | const struct builtin_description *d; |
77ebd435 | 12894 | size_t i; |
bd793c65 BS |
12895 | enum insn_code icode; |
12896 | tree fndecl = TREE_OPERAND (TREE_OPERAND (exp, 0), 0); | |
12897 | tree arglist = TREE_OPERAND (exp, 1); | |
e37af218 | 12898 | tree arg0, arg1, arg2; |
bd793c65 BS |
12899 | rtx op0, op1, op2, pat; |
12900 | enum machine_mode tmode, mode0, mode1, mode2; | |
8752c357 | 12901 | unsigned int fcode = DECL_FUNCTION_CODE (fndecl); |
bd793c65 BS |
12902 | |
12903 | switch (fcode) | |
12904 | { | |
12905 | case IX86_BUILTIN_EMMS: | |
12906 | emit_insn (gen_emms ()); | |
12907 | return 0; | |
12908 | ||
12909 | case IX86_BUILTIN_SFENCE: | |
12910 | emit_insn (gen_sfence ()); | |
12911 | return 0; | |
12912 | ||
bd793c65 | 12913 | case IX86_BUILTIN_PEXTRW: |
fbe5eb6d BS |
12914 | case IX86_BUILTIN_PEXTRW128: |
12915 | icode = (fcode == IX86_BUILTIN_PEXTRW | |
12916 | ? CODE_FOR_mmx_pextrw | |
12917 | : CODE_FOR_sse2_pextrw); | |
bd793c65 BS |
12918 | arg0 = TREE_VALUE (arglist); |
12919 | arg1 = TREE_VALUE (TREE_CHAIN (arglist)); | |
12920 | op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
12921 | op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0); | |
12922 | tmode = insn_data[icode].operand[0].mode; | |
12923 | mode0 = insn_data[icode].operand[1].mode; | |
12924 | mode1 = insn_data[icode].operand[2].mode; | |
12925 | ||
12926 | if (! (*insn_data[icode].operand[1].predicate) (op0, mode0)) | |
12927 | op0 = copy_to_mode_reg (mode0, op0); | |
12928 | if (! (*insn_data[icode].operand[2].predicate) (op1, mode1)) | |
12929 | { | |
12930 | /* @@@ better error message */ | |
12931 | error ("selector must be an immediate"); | |
6f1a6c5b | 12932 | return gen_reg_rtx (tmode); |
bd793c65 BS |
12933 | } |
12934 | if (target == 0 | |
12935 | || GET_MODE (target) != tmode | |
12936 | || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) | |
12937 | target = gen_reg_rtx (tmode); | |
12938 | pat = GEN_FCN (icode) (target, op0, op1); | |
12939 | if (! pat) | |
12940 | return 0; | |
12941 | emit_insn (pat); | |
12942 | return target; | |
12943 | ||
12944 | case IX86_BUILTIN_PINSRW: | |
fbe5eb6d BS |
12945 | case IX86_BUILTIN_PINSRW128: |
12946 | icode = (fcode == IX86_BUILTIN_PINSRW | |
12947 | ? CODE_FOR_mmx_pinsrw | |
12948 | : CODE_FOR_sse2_pinsrw); | |
bd793c65 BS |
12949 | arg0 = TREE_VALUE (arglist); |
12950 | arg1 = TREE_VALUE (TREE_CHAIN (arglist)); | |
12951 | arg2 = TREE_VALUE (TREE_CHAIN (TREE_CHAIN (arglist))); | |
12952 | op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
12953 | op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0); | |
12954 | op2 = expand_expr (arg2, NULL_RTX, VOIDmode, 0); | |
12955 | tmode = insn_data[icode].operand[0].mode; | |
12956 | mode0 = insn_data[icode].operand[1].mode; | |
12957 | mode1 = insn_data[icode].operand[2].mode; | |
12958 | mode2 = insn_data[icode].operand[3].mode; | |
12959 | ||
12960 | if (! (*insn_data[icode].operand[1].predicate) (op0, mode0)) | |
12961 | op0 = copy_to_mode_reg (mode0, op0); | |
12962 | if (! (*insn_data[icode].operand[2].predicate) (op1, mode1)) | |
12963 | op1 = copy_to_mode_reg (mode1, op1); | |
12964 | if (! (*insn_data[icode].operand[3].predicate) (op2, mode2)) | |
12965 | { | |
12966 | /* @@@ better error message */ | |
12967 | error ("selector must be an immediate"); | |
12968 | return const0_rtx; | |
12969 | } | |
12970 | if (target == 0 | |
12971 | || GET_MODE (target) != tmode | |
12972 | || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) | |
12973 | target = gen_reg_rtx (tmode); | |
12974 | pat = GEN_FCN (icode) (target, op0, op1, op2); | |
12975 | if (! pat) | |
12976 | return 0; | |
12977 | emit_insn (pat); | |
12978 | return target; | |
12979 | ||
12980 | case IX86_BUILTIN_MASKMOVQ: | |
fbe5eb6d BS |
12981 | icode = (fcode == IX86_BUILTIN_MASKMOVQ |
12982 | ? (TARGET_64BIT ? CODE_FOR_mmx_maskmovq_rex : CODE_FOR_mmx_maskmovq) | |
12983 | : CODE_FOR_sse2_maskmovdqu); | |
bd793c65 BS |
12984 | /* Note the arg order is different from the operand order. */ |
12985 | arg1 = TREE_VALUE (arglist); | |
12986 | arg2 = TREE_VALUE (TREE_CHAIN (arglist)); | |
12987 | arg0 = TREE_VALUE (TREE_CHAIN (TREE_CHAIN (arglist))); | |
12988 | op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
12989 | op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0); | |
12990 | op2 = expand_expr (arg2, NULL_RTX, VOIDmode, 0); | |
12991 | mode0 = insn_data[icode].operand[0].mode; | |
12992 | mode1 = insn_data[icode].operand[1].mode; | |
12993 | mode2 = insn_data[icode].operand[2].mode; | |
12994 | ||
5c464583 | 12995 | if (! (*insn_data[icode].operand[0].predicate) (op0, mode0)) |
bd793c65 BS |
12996 | op0 = copy_to_mode_reg (mode0, op0); |
12997 | if (! (*insn_data[icode].operand[1].predicate) (op1, mode1)) | |
12998 | op1 = copy_to_mode_reg (mode1, op1); | |
12999 | if (! (*insn_data[icode].operand[2].predicate) (op2, mode2)) | |
13000 | op2 = copy_to_mode_reg (mode2, op2); | |
13001 | pat = GEN_FCN (icode) (op0, op1, op2); | |
13002 | if (! pat) | |
13003 | return 0; | |
13004 | emit_insn (pat); | |
13005 | return 0; | |
13006 | ||
13007 | case IX86_BUILTIN_SQRTSS: | |
13008 | return ix86_expand_unop1_builtin (CODE_FOR_vmsqrtv4sf2, arglist, target); | |
13009 | case IX86_BUILTIN_RSQRTSS: | |
13010 | return ix86_expand_unop1_builtin (CODE_FOR_vmrsqrtv4sf2, arglist, target); | |
13011 | case IX86_BUILTIN_RCPSS: | |
13012 | return ix86_expand_unop1_builtin (CODE_FOR_vmrcpv4sf2, arglist, target); | |
13013 | ||
13014 | case IX86_BUILTIN_LOADAPS: | |
13015 | return ix86_expand_unop_builtin (CODE_FOR_sse_movaps, arglist, target, 1); | |
13016 | ||
13017 | case IX86_BUILTIN_LOADUPS: | |
13018 | return ix86_expand_unop_builtin (CODE_FOR_sse_movups, arglist, target, 1); | |
13019 | ||
13020 | case IX86_BUILTIN_STOREAPS: | |
e37af218 | 13021 | return ix86_expand_store_builtin (CODE_FOR_sse_movaps, arglist); |
bd793c65 | 13022 | case IX86_BUILTIN_STOREUPS: |
e37af218 | 13023 | return ix86_expand_store_builtin (CODE_FOR_sse_movups, arglist); |
bd793c65 BS |
13024 | |
13025 | case IX86_BUILTIN_LOADSS: | |
13026 | return ix86_expand_unop_builtin (CODE_FOR_sse_loadss, arglist, target, 1); | |
13027 | ||
13028 | case IX86_BUILTIN_STORESS: | |
e37af218 | 13029 | return ix86_expand_store_builtin (CODE_FOR_sse_storess, arglist); |
bd793c65 | 13030 | |
0f290768 | 13031 | case IX86_BUILTIN_LOADHPS: |
bd793c65 | 13032 | case IX86_BUILTIN_LOADLPS: |
fbe5eb6d BS |
13033 | case IX86_BUILTIN_LOADHPD: |
13034 | case IX86_BUILTIN_LOADLPD: | |
13035 | icode = (fcode == IX86_BUILTIN_LOADHPS ? CODE_FOR_sse_movhps | |
13036 | : fcode == IX86_BUILTIN_LOADLPS ? CODE_FOR_sse_movlps | |
13037 | : fcode == IX86_BUILTIN_LOADHPD ? CODE_FOR_sse2_movhpd | |
13038 | : CODE_FOR_sse2_movlpd); | |
bd793c65 BS |
13039 | arg0 = TREE_VALUE (arglist); |
13040 | arg1 = TREE_VALUE (TREE_CHAIN (arglist)); | |
13041 | op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
13042 | op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0); | |
13043 | tmode = insn_data[icode].operand[0].mode; | |
13044 | mode0 = insn_data[icode].operand[1].mode; | |
13045 | mode1 = insn_data[icode].operand[2].mode; | |
13046 | ||
13047 | if (! (*insn_data[icode].operand[1].predicate) (op0, mode0)) | |
13048 | op0 = copy_to_mode_reg (mode0, op0); | |
13049 | op1 = gen_rtx_MEM (mode1, copy_to_mode_reg (Pmode, op1)); | |
13050 | if (target == 0 | |
13051 | || GET_MODE (target) != tmode | |
13052 | || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) | |
13053 | target = gen_reg_rtx (tmode); | |
13054 | pat = GEN_FCN (icode) (target, op0, op1); | |
13055 | if (! pat) | |
13056 | return 0; | |
13057 | emit_insn (pat); | |
13058 | return target; | |
0f290768 | 13059 | |
bd793c65 BS |
13060 | case IX86_BUILTIN_STOREHPS: |
13061 | case IX86_BUILTIN_STORELPS: | |
fbe5eb6d BS |
13062 | case IX86_BUILTIN_STOREHPD: |
13063 | case IX86_BUILTIN_STORELPD: | |
13064 | icode = (fcode == IX86_BUILTIN_STOREHPS ? CODE_FOR_sse_movhps | |
13065 | : fcode == IX86_BUILTIN_STORELPS ? CODE_FOR_sse_movlps | |
13066 | : fcode == IX86_BUILTIN_STOREHPD ? CODE_FOR_sse2_movhpd | |
13067 | : CODE_FOR_sse2_movlpd); | |
bd793c65 BS |
13068 | arg0 = TREE_VALUE (arglist); |
13069 | arg1 = TREE_VALUE (TREE_CHAIN (arglist)); | |
13070 | op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
13071 | op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0); | |
13072 | mode0 = insn_data[icode].operand[1].mode; | |
13073 | mode1 = insn_data[icode].operand[2].mode; | |
13074 | ||
13075 | op0 = gen_rtx_MEM (mode0, copy_to_mode_reg (Pmode, op0)); | |
13076 | if (! (*insn_data[icode].operand[2].predicate) (op1, mode1)) | |
13077 | op1 = copy_to_mode_reg (mode1, op1); | |
13078 | ||
13079 | pat = GEN_FCN (icode) (op0, op0, op1); | |
13080 | if (! pat) | |
13081 | return 0; | |
13082 | emit_insn (pat); | |
13083 | return 0; | |
13084 | ||
13085 | case IX86_BUILTIN_MOVNTPS: | |
e37af218 | 13086 | return ix86_expand_store_builtin (CODE_FOR_sse_movntv4sf, arglist); |
bd793c65 | 13087 | case IX86_BUILTIN_MOVNTQ: |
e37af218 | 13088 | return ix86_expand_store_builtin (CODE_FOR_sse_movntdi, arglist); |
bd793c65 BS |
13089 | |
13090 | case IX86_BUILTIN_LDMXCSR: | |
13091 | op0 = expand_expr (TREE_VALUE (arglist), NULL_RTX, VOIDmode, 0); | |
13092 | target = assign_386_stack_local (SImode, 0); | |
13093 | emit_move_insn (target, op0); | |
13094 | emit_insn (gen_ldmxcsr (target)); | |
13095 | return 0; | |
13096 | ||
13097 | case IX86_BUILTIN_STMXCSR: | |
13098 | target = assign_386_stack_local (SImode, 0); | |
13099 | emit_insn (gen_stmxcsr (target)); | |
13100 | return copy_to_mode_reg (SImode, target); | |
13101 | ||
bd793c65 | 13102 | case IX86_BUILTIN_SHUFPS: |
fbe5eb6d BS |
13103 | case IX86_BUILTIN_SHUFPD: |
13104 | icode = (fcode == IX86_BUILTIN_SHUFPS | |
13105 | ? CODE_FOR_sse_shufps | |
13106 | : CODE_FOR_sse2_shufpd); | |
bd793c65 BS |
13107 | arg0 = TREE_VALUE (arglist); |
13108 | arg1 = TREE_VALUE (TREE_CHAIN (arglist)); | |
13109 | arg2 = TREE_VALUE (TREE_CHAIN (TREE_CHAIN (arglist))); | |
13110 | op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
13111 | op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0); | |
13112 | op2 = expand_expr (arg2, NULL_RTX, VOIDmode, 0); | |
13113 | tmode = insn_data[icode].operand[0].mode; | |
13114 | mode0 = insn_data[icode].operand[1].mode; | |
13115 | mode1 = insn_data[icode].operand[2].mode; | |
13116 | mode2 = insn_data[icode].operand[3].mode; | |
13117 | ||
13118 | if (! (*insn_data[icode].operand[1].predicate) (op0, mode0)) | |
13119 | op0 = copy_to_mode_reg (mode0, op0); | |
13120 | if (! (*insn_data[icode].operand[2].predicate) (op1, mode1)) | |
13121 | op1 = copy_to_mode_reg (mode1, op1); | |
13122 | if (! (*insn_data[icode].operand[3].predicate) (op2, mode2)) | |
13123 | { | |
13124 | /* @@@ better error message */ | |
13125 | error ("mask must be an immediate"); | |
6f1a6c5b | 13126 | return gen_reg_rtx (tmode); |
bd793c65 BS |
13127 | } |
13128 | if (target == 0 | |
13129 | || GET_MODE (target) != tmode | |
13130 | || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) | |
13131 | target = gen_reg_rtx (tmode); | |
13132 | pat = GEN_FCN (icode) (target, op0, op1, op2); | |
13133 | if (! pat) | |
13134 | return 0; | |
13135 | emit_insn (pat); | |
13136 | return target; | |
13137 | ||
13138 | case IX86_BUILTIN_PSHUFW: | |
fbe5eb6d BS |
13139 | case IX86_BUILTIN_PSHUFD: |
13140 | case IX86_BUILTIN_PSHUFHW: | |
13141 | case IX86_BUILTIN_PSHUFLW: | |
13142 | icode = ( fcode == IX86_BUILTIN_PSHUFHW ? CODE_FOR_sse2_pshufhw | |
13143 | : fcode == IX86_BUILTIN_PSHUFLW ? CODE_FOR_sse2_pshuflw | |
13144 | : fcode == IX86_BUILTIN_PSHUFD ? CODE_FOR_sse2_pshufd | |
13145 | : CODE_FOR_mmx_pshufw); | |
bd793c65 BS |
13146 | arg0 = TREE_VALUE (arglist); |
13147 | arg1 = TREE_VALUE (TREE_CHAIN (arglist)); | |
13148 | op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
13149 | op1 = expand_expr (arg1, NULL_RTX, VOIDmode, 0); | |
13150 | tmode = insn_data[icode].operand[0].mode; | |
29628f27 BS |
13151 | mode1 = insn_data[icode].operand[1].mode; |
13152 | mode2 = insn_data[icode].operand[2].mode; | |
bd793c65 | 13153 | |
29628f27 BS |
13154 | if (! (*insn_data[icode].operand[1].predicate) (op0, mode1)) |
13155 | op0 = copy_to_mode_reg (mode1, op0); | |
13156 | if (! (*insn_data[icode].operand[2].predicate) (op1, mode2)) | |
bd793c65 BS |
13157 | { |
13158 | /* @@@ better error message */ | |
13159 | error ("mask must be an immediate"); | |
13160 | return const0_rtx; | |
13161 | } | |
13162 | if (target == 0 | |
13163 | || GET_MODE (target) != tmode | |
13164 | || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) | |
13165 | target = gen_reg_rtx (tmode); | |
29628f27 | 13166 | pat = GEN_FCN (icode) (target, op0, op1); |
bd793c65 BS |
13167 | if (! pat) |
13168 | return 0; | |
13169 | emit_insn (pat); | |
13170 | return target; | |
13171 | ||
47f339cf BS |
13172 | case IX86_BUILTIN_FEMMS: |
13173 | emit_insn (gen_femms ()); | |
13174 | return NULL_RTX; | |
13175 | ||
13176 | case IX86_BUILTIN_PAVGUSB: | |
13177 | return ix86_expand_binop_builtin (CODE_FOR_pavgusb, arglist, target); | |
13178 | ||
13179 | case IX86_BUILTIN_PF2ID: | |
13180 | return ix86_expand_unop_builtin (CODE_FOR_pf2id, arglist, target, 0); | |
13181 | ||
13182 | case IX86_BUILTIN_PFACC: | |
13183 | return ix86_expand_binop_builtin (CODE_FOR_pfacc, arglist, target); | |
13184 | ||
13185 | case IX86_BUILTIN_PFADD: | |
13186 | return ix86_expand_binop_builtin (CODE_FOR_addv2sf3, arglist, target); | |
13187 | ||
13188 | case IX86_BUILTIN_PFCMPEQ: | |
13189 | return ix86_expand_binop_builtin (CODE_FOR_eqv2sf3, arglist, target); | |
13190 | ||
13191 | case IX86_BUILTIN_PFCMPGE: | |
13192 | return ix86_expand_binop_builtin (CODE_FOR_gev2sf3, arglist, target); | |
13193 | ||
13194 | case IX86_BUILTIN_PFCMPGT: | |
13195 | return ix86_expand_binop_builtin (CODE_FOR_gtv2sf3, arglist, target); | |
13196 | ||
13197 | case IX86_BUILTIN_PFMAX: | |
13198 | return ix86_expand_binop_builtin (CODE_FOR_pfmaxv2sf3, arglist, target); | |
13199 | ||
13200 | case IX86_BUILTIN_PFMIN: | |
13201 | return ix86_expand_binop_builtin (CODE_FOR_pfminv2sf3, arglist, target); | |
13202 | ||
13203 | case IX86_BUILTIN_PFMUL: | |
13204 | return ix86_expand_binop_builtin (CODE_FOR_mulv2sf3, arglist, target); | |
13205 | ||
13206 | case IX86_BUILTIN_PFRCP: | |
13207 | return ix86_expand_unop_builtin (CODE_FOR_pfrcpv2sf2, arglist, target, 0); | |
13208 | ||
13209 | case IX86_BUILTIN_PFRCPIT1: | |
13210 | return ix86_expand_binop_builtin (CODE_FOR_pfrcpit1v2sf3, arglist, target); | |
13211 | ||
13212 | case IX86_BUILTIN_PFRCPIT2: | |
13213 | return ix86_expand_binop_builtin (CODE_FOR_pfrcpit2v2sf3, arglist, target); | |
13214 | ||
13215 | case IX86_BUILTIN_PFRSQIT1: | |
13216 | return ix86_expand_binop_builtin (CODE_FOR_pfrsqit1v2sf3, arglist, target); | |
13217 | ||
13218 | case IX86_BUILTIN_PFRSQRT: | |
13219 | return ix86_expand_unop_builtin (CODE_FOR_pfrsqrtv2sf2, arglist, target, 0); | |
13220 | ||
13221 | case IX86_BUILTIN_PFSUB: | |
13222 | return ix86_expand_binop_builtin (CODE_FOR_subv2sf3, arglist, target); | |
13223 | ||
13224 | case IX86_BUILTIN_PFSUBR: | |
13225 | return ix86_expand_binop_builtin (CODE_FOR_subrv2sf3, arglist, target); | |
13226 | ||
13227 | case IX86_BUILTIN_PI2FD: | |
13228 | return ix86_expand_unop_builtin (CODE_FOR_floatv2si2, arglist, target, 0); | |
13229 | ||
13230 | case IX86_BUILTIN_PMULHRW: | |
13231 | return ix86_expand_binop_builtin (CODE_FOR_pmulhrwv4hi3, arglist, target); | |
13232 | ||
47f339cf BS |
13233 | case IX86_BUILTIN_PF2IW: |
13234 | return ix86_expand_unop_builtin (CODE_FOR_pf2iw, arglist, target, 0); | |
13235 | ||
13236 | case IX86_BUILTIN_PFNACC: | |
13237 | return ix86_expand_binop_builtin (CODE_FOR_pfnacc, arglist, target); | |
13238 | ||
13239 | case IX86_BUILTIN_PFPNACC: | |
13240 | return ix86_expand_binop_builtin (CODE_FOR_pfpnacc, arglist, target); | |
13241 | ||
13242 | case IX86_BUILTIN_PI2FW: | |
13243 | return ix86_expand_unop_builtin (CODE_FOR_pi2fw, arglist, target, 0); | |
13244 | ||
13245 | case IX86_BUILTIN_PSWAPDSI: | |
13246 | return ix86_expand_unop_builtin (CODE_FOR_pswapdv2si2, arglist, target, 0); | |
13247 | ||
13248 | case IX86_BUILTIN_PSWAPDSF: | |
13249 | return ix86_expand_unop_builtin (CODE_FOR_pswapdv2sf2, arglist, target, 0); | |
13250 | ||
e37af218 RH |
13251 | case IX86_BUILTIN_SSE_ZERO: |
13252 | target = gen_reg_rtx (V4SFmode); | |
13253 | emit_insn (gen_sse_clrv4sf (target)); | |
bd793c65 BS |
13254 | return target; |
13255 | ||
bd793c65 BS |
13256 | case IX86_BUILTIN_MMX_ZERO: |
13257 | target = gen_reg_rtx (DImode); | |
13258 | emit_insn (gen_mmx_clrdi (target)); | |
13259 | return target; | |
13260 | ||
fbe5eb6d BS |
13261 | case IX86_BUILTIN_SQRTSD: |
13262 | return ix86_expand_unop1_builtin (CODE_FOR_vmsqrtv2df2, arglist, target); | |
13263 | case IX86_BUILTIN_LOADAPD: | |
13264 | return ix86_expand_unop_builtin (CODE_FOR_sse2_movapd, arglist, target, 1); | |
13265 | case IX86_BUILTIN_LOADUPD: | |
13266 | return ix86_expand_unop_builtin (CODE_FOR_sse2_movupd, arglist, target, 1); | |
13267 | ||
13268 | case IX86_BUILTIN_STOREAPD: | |
13269 | return ix86_expand_store_builtin (CODE_FOR_sse2_movapd, arglist); | |
13270 | case IX86_BUILTIN_STOREUPD: | |
13271 | return ix86_expand_store_builtin (CODE_FOR_sse2_movupd, arglist); | |
13272 | ||
13273 | case IX86_BUILTIN_LOADSD: | |
13274 | return ix86_expand_unop_builtin (CODE_FOR_sse2_loadsd, arglist, target, 1); | |
13275 | ||
13276 | case IX86_BUILTIN_STORESD: | |
13277 | return ix86_expand_store_builtin (CODE_FOR_sse2_storesd, arglist); | |
13278 | ||
13279 | case IX86_BUILTIN_SETPD1: | |
13280 | target = assign_386_stack_local (DFmode, 0); | |
13281 | arg0 = TREE_VALUE (arglist); | |
13282 | emit_move_insn (adjust_address (target, DFmode, 0), | |
13283 | expand_expr (arg0, NULL_RTX, VOIDmode, 0)); | |
13284 | op0 = gen_reg_rtx (V2DFmode); | |
13285 | emit_insn (gen_sse2_loadsd (op0, adjust_address (target, V2DFmode, 0))); | |
13286 | emit_insn (gen_sse2_shufpd (op0, op0, op0, GEN_INT (0))); | |
13287 | return op0; | |
13288 | ||
13289 | case IX86_BUILTIN_SETPD: | |
13290 | target = assign_386_stack_local (V2DFmode, 0); | |
13291 | arg0 = TREE_VALUE (arglist); | |
13292 | arg1 = TREE_VALUE (TREE_CHAIN (arglist)); | |
13293 | emit_move_insn (adjust_address (target, DFmode, 0), | |
13294 | expand_expr (arg0, NULL_RTX, VOIDmode, 0)); | |
13295 | emit_move_insn (adjust_address (target, DFmode, 8), | |
13296 | expand_expr (arg1, NULL_RTX, VOIDmode, 0)); | |
13297 | op0 = gen_reg_rtx (V2DFmode); | |
13298 | emit_insn (gen_sse2_movapd (op0, target)); | |
13299 | return op0; | |
13300 | ||
13301 | case IX86_BUILTIN_LOADRPD: | |
13302 | target = ix86_expand_unop_builtin (CODE_FOR_sse2_movapd, arglist, | |
13303 | gen_reg_rtx (V2DFmode), 1); | |
13304 | emit_insn (gen_sse2_shufpd (target, target, target, GEN_INT (1))); | |
13305 | return target; | |
13306 | ||
13307 | case IX86_BUILTIN_LOADPD1: | |
13308 | target = ix86_expand_unop_builtin (CODE_FOR_sse2_loadsd, arglist, | |
13309 | gen_reg_rtx (V2DFmode), 1); | |
13310 | emit_insn (gen_sse2_shufpd (target, target, target, const0_rtx)); | |
13311 | return target; | |
13312 | ||
13313 | case IX86_BUILTIN_STOREPD1: | |
13314 | return ix86_expand_store_builtin (CODE_FOR_sse2_movapd, arglist); | |
13315 | case IX86_BUILTIN_STORERPD: | |
13316 | return ix86_expand_store_builtin (CODE_FOR_sse2_movapd, arglist); | |
13317 | ||
13318 | case IX86_BUILTIN_MFENCE: | |
13319 | emit_insn (gen_sse2_mfence ()); | |
13320 | return 0; | |
13321 | case IX86_BUILTIN_LFENCE: | |
13322 | emit_insn (gen_sse2_lfence ()); | |
13323 | return 0; | |
13324 | ||
13325 | case IX86_BUILTIN_CLFLUSH: | |
13326 | arg0 = TREE_VALUE (arglist); | |
13327 | op0 = expand_expr (arg0, NULL_RTX, VOIDmode, 0); | |
13328 | icode = CODE_FOR_sse2_clflush; | |
13329 | mode0 = insn_data[icode].operand[0].mode; | |
13330 | if (! (*insn_data[icode].operand[0].predicate) (op0, mode0)) | |
13331 | op0 = copy_to_mode_reg (mode0, op0); | |
13332 | ||
13333 | emit_insn (gen_sse2_clflush (op0)); | |
13334 | return 0; | |
13335 | ||
13336 | case IX86_BUILTIN_MOVNTPD: | |
13337 | return ix86_expand_store_builtin (CODE_FOR_sse2_movntv2df, arglist); | |
13338 | case IX86_BUILTIN_MOVNTDQ: | |
916b60b7 | 13339 | return ix86_expand_store_builtin (CODE_FOR_sse2_movntv2di, arglist); |
fbe5eb6d BS |
13340 | case IX86_BUILTIN_MOVNTI: |
13341 | return ix86_expand_store_builtin (CODE_FOR_sse2_movntsi, arglist); | |
13342 | ||
bd793c65 BS |
13343 | default: |
13344 | break; | |
13345 | } | |
13346 | ||
ca7558fc | 13347 | for (i = 0, d = bdesc_2arg; i < ARRAY_SIZE (bdesc_2arg); i++, d++) |
bd793c65 BS |
13348 | if (d->code == fcode) |
13349 | { | |
13350 | /* Compares are treated specially. */ | |
13351 | if (d->icode == CODE_FOR_maskcmpv4sf3 | |
13352 | || d->icode == CODE_FOR_vmmaskcmpv4sf3 | |
13353 | || d->icode == CODE_FOR_maskncmpv4sf3 | |
fbe5eb6d BS |
13354 | || d->icode == CODE_FOR_vmmaskncmpv4sf3 |
13355 | || d->icode == CODE_FOR_maskcmpv2df3 | |
13356 | || d->icode == CODE_FOR_vmmaskcmpv2df3 | |
13357 | || d->icode == CODE_FOR_maskncmpv2df3 | |
13358 | || d->icode == CODE_FOR_vmmaskncmpv2df3) | |
bd793c65 BS |
13359 | return ix86_expand_sse_compare (d, arglist, target); |
13360 | ||
13361 | return ix86_expand_binop_builtin (d->icode, arglist, target); | |
13362 | } | |
13363 | ||
ca7558fc | 13364 | for (i = 0, d = bdesc_1arg; i < ARRAY_SIZE (bdesc_1arg); i++, d++) |
bd793c65 BS |
13365 | if (d->code == fcode) |
13366 | return ix86_expand_unop_builtin (d->icode, arglist, target, 0); | |
0f290768 | 13367 | |
ca7558fc | 13368 | for (i = 0, d = bdesc_comi; i < ARRAY_SIZE (bdesc_comi); i++, d++) |
bd793c65 BS |
13369 | if (d->code == fcode) |
13370 | return ix86_expand_sse_comi (d, arglist, target); | |
0f290768 | 13371 | |
bd793c65 BS |
13372 | /* @@@ Should really do something sensible here. */ |
13373 | return 0; | |
bd793c65 | 13374 | } |
4211a8fb JH |
13375 | |
13376 | /* Store OPERAND to the memory after reload is completed. This means | |
f710504c | 13377 | that we can't easily use assign_stack_local. */ |
4211a8fb JH |
13378 | rtx |
13379 | ix86_force_to_memory (mode, operand) | |
13380 | enum machine_mode mode; | |
13381 | rtx operand; | |
13382 | { | |
898d374d | 13383 | rtx result; |
4211a8fb JH |
13384 | if (!reload_completed) |
13385 | abort (); | |
898d374d JH |
13386 | if (TARGET_64BIT && TARGET_RED_ZONE) |
13387 | { | |
13388 | result = gen_rtx_MEM (mode, | |
13389 | gen_rtx_PLUS (Pmode, | |
13390 | stack_pointer_rtx, | |
13391 | GEN_INT (-RED_ZONE_SIZE))); | |
13392 | emit_move_insn (result, operand); | |
13393 | } | |
13394 | else if (TARGET_64BIT && !TARGET_RED_ZONE) | |
4211a8fb | 13395 | { |
898d374d | 13396 | switch (mode) |
4211a8fb | 13397 | { |
898d374d JH |
13398 | case HImode: |
13399 | case SImode: | |
13400 | operand = gen_lowpart (DImode, operand); | |
13401 | /* FALLTHRU */ | |
13402 | case DImode: | |
4211a8fb | 13403 | emit_insn ( |
898d374d JH |
13404 | gen_rtx_SET (VOIDmode, |
13405 | gen_rtx_MEM (DImode, | |
13406 | gen_rtx_PRE_DEC (DImode, | |
13407 | stack_pointer_rtx)), | |
13408 | operand)); | |
13409 | break; | |
13410 | default: | |
13411 | abort (); | |
13412 | } | |
13413 | result = gen_rtx_MEM (mode, stack_pointer_rtx); | |
13414 | } | |
13415 | else | |
13416 | { | |
13417 | switch (mode) | |
13418 | { | |
13419 | case DImode: | |
13420 | { | |
13421 | rtx operands[2]; | |
13422 | split_di (&operand, 1, operands, operands + 1); | |
13423 | emit_insn ( | |
13424 | gen_rtx_SET (VOIDmode, | |
13425 | gen_rtx_MEM (SImode, | |
13426 | gen_rtx_PRE_DEC (Pmode, | |
13427 | stack_pointer_rtx)), | |
13428 | operands[1])); | |
13429 | emit_insn ( | |
13430 | gen_rtx_SET (VOIDmode, | |
13431 | gen_rtx_MEM (SImode, | |
13432 | gen_rtx_PRE_DEC (Pmode, | |
13433 | stack_pointer_rtx)), | |
13434 | operands[0])); | |
13435 | } | |
13436 | break; | |
13437 | case HImode: | |
13438 | /* It is better to store HImodes as SImodes. */ | |
13439 | if (!TARGET_PARTIAL_REG_STALL) | |
13440 | operand = gen_lowpart (SImode, operand); | |
13441 | /* FALLTHRU */ | |
13442 | case SImode: | |
4211a8fb | 13443 | emit_insn ( |
898d374d JH |
13444 | gen_rtx_SET (VOIDmode, |
13445 | gen_rtx_MEM (GET_MODE (operand), | |
13446 | gen_rtx_PRE_DEC (SImode, | |
13447 | stack_pointer_rtx)), | |
13448 | operand)); | |
13449 | break; | |
13450 | default: | |
13451 | abort (); | |
4211a8fb | 13452 | } |
898d374d | 13453 | result = gen_rtx_MEM (mode, stack_pointer_rtx); |
4211a8fb | 13454 | } |
898d374d | 13455 | return result; |
4211a8fb JH |
13456 | } |
13457 | ||
13458 | /* Free operand from the memory. */ | |
13459 | void | |
13460 | ix86_free_from_memory (mode) | |
13461 | enum machine_mode mode; | |
13462 | { | |
898d374d JH |
13463 | if (!TARGET_64BIT || !TARGET_RED_ZONE) |
13464 | { | |
13465 | int size; | |
13466 | ||
13467 | if (mode == DImode || TARGET_64BIT) | |
13468 | size = 8; | |
13469 | else if (mode == HImode && TARGET_PARTIAL_REG_STALL) | |
13470 | size = 2; | |
13471 | else | |
13472 | size = 4; | |
13473 | /* Use LEA to deallocate stack space. In peephole2 it will be converted | |
13474 | to pop or add instruction if registers are available. */ | |
13475 | emit_insn (gen_rtx_SET (VOIDmode, stack_pointer_rtx, | |
13476 | gen_rtx_PLUS (Pmode, stack_pointer_rtx, | |
13477 | GEN_INT (size)))); | |
13478 | } | |
4211a8fb | 13479 | } |
a946dd00 | 13480 | |
f84aa48a JH |
13481 | /* Put float CONST_DOUBLE in the constant pool instead of fp regs. |
13482 | QImode must go into class Q_REGS. | |
13483 | Narrow ALL_REGS to GENERAL_REGS. This supports allowing movsf and | |
892a2d68 | 13484 | movdf to do mem-to-mem moves through integer regs. */ |
f84aa48a JH |
13485 | enum reg_class |
13486 | ix86_preferred_reload_class (x, class) | |
13487 | rtx x; | |
13488 | enum reg_class class; | |
13489 | { | |
1877be45 JH |
13490 | if (GET_CODE (x) == CONST_VECTOR && x != CONST0_RTX (GET_MODE (x))) |
13491 | return NO_REGS; | |
f84aa48a JH |
13492 | if (GET_CODE (x) == CONST_DOUBLE && GET_MODE (x) != VOIDmode) |
13493 | { | |
13494 | /* SSE can't load any constant directly yet. */ | |
13495 | if (SSE_CLASS_P (class)) | |
13496 | return NO_REGS; | |
13497 | /* Floats can load 0 and 1. */ | |
13498 | if (MAYBE_FLOAT_CLASS_P (class) && standard_80387_constant_p (x)) | |
13499 | { | |
13500 | /* Limit class to non-SSE. Use GENERAL_REGS if possible. */ | |
13501 | if (MAYBE_SSE_CLASS_P (class)) | |
13502 | return (reg_class_subset_p (class, GENERAL_REGS) | |
13503 | ? GENERAL_REGS : FLOAT_REGS); | |
13504 | else | |
13505 | return class; | |
13506 | } | |
13507 | /* General regs can load everything. */ | |
13508 | if (reg_class_subset_p (class, GENERAL_REGS)) | |
13509 | return GENERAL_REGS; | |
13510 | /* In case we haven't resolved FLOAT or SSE yet, give up. */ | |
13511 | if (MAYBE_FLOAT_CLASS_P (class) || MAYBE_SSE_CLASS_P (class)) | |
13512 | return NO_REGS; | |
13513 | } | |
13514 | if (MAYBE_MMX_CLASS_P (class) && CONSTANT_P (x)) | |
13515 | return NO_REGS; | |
13516 | if (GET_MODE (x) == QImode && ! reg_class_subset_p (class, Q_REGS)) | |
13517 | return Q_REGS; | |
13518 | return class; | |
13519 | } | |
13520 | ||
13521 | /* If we are copying between general and FP registers, we need a memory | |
13522 | location. The same is true for SSE and MMX registers. | |
13523 | ||
13524 | The macro can't work reliably when one of the CLASSES is class containing | |
13525 | registers from multiple units (SSE, MMX, integer). We avoid this by never | |
13526 | combining those units in single alternative in the machine description. | |
13527 | Ensure that this constraint holds to avoid unexpected surprises. | |
13528 | ||
13529 | When STRICT is false, we are being called from REGISTER_MOVE_COST, so do not | |
13530 | enforce these sanity checks. */ | |
13531 | int | |
13532 | ix86_secondary_memory_needed (class1, class2, mode, strict) | |
13533 | enum reg_class class1, class2; | |
13534 | enum machine_mode mode; | |
13535 | int strict; | |
13536 | { | |
13537 | if (MAYBE_FLOAT_CLASS_P (class1) != FLOAT_CLASS_P (class1) | |
13538 | || MAYBE_FLOAT_CLASS_P (class2) != FLOAT_CLASS_P (class2) | |
13539 | || MAYBE_SSE_CLASS_P (class1) != SSE_CLASS_P (class1) | |
13540 | || MAYBE_SSE_CLASS_P (class2) != SSE_CLASS_P (class2) | |
13541 | || MAYBE_MMX_CLASS_P (class1) != MMX_CLASS_P (class1) | |
13542 | || MAYBE_MMX_CLASS_P (class2) != MMX_CLASS_P (class2)) | |
13543 | { | |
13544 | if (strict) | |
13545 | abort (); | |
13546 | else | |
13547 | return 1; | |
13548 | } | |
13549 | return (FLOAT_CLASS_P (class1) != FLOAT_CLASS_P (class2) | |
13550 | || (SSE_CLASS_P (class1) != SSE_CLASS_P (class2) | |
13551 | && (mode) != SImode) | |
13552 | || (MMX_CLASS_P (class1) != MMX_CLASS_P (class2) | |
13553 | && (mode) != SImode)); | |
13554 | } | |
13555 | /* Return the cost of moving data from a register in class CLASS1 to | |
a4f31c00 | 13556 | one in class CLASS2. |
f84aa48a JH |
13557 | |
13558 | It is not required that the cost always equal 2 when FROM is the same as TO; | |
13559 | on some machines it is expensive to move between registers if they are not | |
13560 | general registers. */ | |
13561 | int | |
13562 | ix86_register_move_cost (mode, class1, class2) | |
13563 | enum machine_mode mode; | |
13564 | enum reg_class class1, class2; | |
13565 | { | |
13566 | /* In case we require secondary memory, compute cost of the store followed | |
d631b80a RH |
13567 | by load. In order to avoid bad register allocation choices, we need |
13568 | for this to be *at least* as high as the symmetric MEMORY_MOVE_COST. */ | |
13569 | ||
f84aa48a JH |
13570 | if (ix86_secondary_memory_needed (class1, class2, mode, 0)) |
13571 | { | |
d631b80a RH |
13572 | int cost = 1; |
13573 | ||
13574 | cost += MAX (MEMORY_MOVE_COST (mode, class1, 0), | |
13575 | MEMORY_MOVE_COST (mode, class1, 1)); | |
13576 | cost += MAX (MEMORY_MOVE_COST (mode, class2, 0), | |
13577 | MEMORY_MOVE_COST (mode, class2, 1)); | |
13578 | ||
13579 | /* In case of copying from general_purpose_register we may emit multiple | |
13580 | stores followed by single load causing memory size mismatch stall. | |
13581 | Count this as arbitarily high cost of 20. */ | |
62415523 | 13582 | if (CLASS_MAX_NREGS (class1, mode) > CLASS_MAX_NREGS (class2, mode)) |
d631b80a RH |
13583 | cost += 20; |
13584 | ||
13585 | /* In the case of FP/MMX moves, the registers actually overlap, and we | |
13586 | have to switch modes in order to treat them differently. */ | |
13587 | if ((MMX_CLASS_P (class1) && MAYBE_FLOAT_CLASS_P (class2)) | |
13588 | || (MMX_CLASS_P (class2) && MAYBE_FLOAT_CLASS_P (class1))) | |
13589 | cost += 20; | |
13590 | ||
13591 | return cost; | |
f84aa48a | 13592 | } |
d631b80a | 13593 | |
92d0fb09 | 13594 | /* Moves between SSE/MMX and integer unit are expensive. */ |
62415523 JH |
13595 | if (MMX_CLASS_P (class1) != MMX_CLASS_P (class2) |
13596 | || SSE_CLASS_P (class1) != SSE_CLASS_P (class2)) | |
fa79946e JH |
13597 | return ix86_cost->mmxsse_to_integer; |
13598 | if (MAYBE_FLOAT_CLASS_P (class1)) | |
13599 | return ix86_cost->fp_move; | |
13600 | if (MAYBE_SSE_CLASS_P (class1)) | |
13601 | return ix86_cost->sse_move; | |
13602 | if (MAYBE_MMX_CLASS_P (class1)) | |
13603 | return ix86_cost->mmx_move; | |
f84aa48a JH |
13604 | return 2; |
13605 | } | |
13606 | ||
a946dd00 JH |
13607 | /* Return 1 if hard register REGNO can hold a value of machine-mode MODE. */ |
13608 | int | |
13609 | ix86_hard_regno_mode_ok (regno, mode) | |
13610 | int regno; | |
13611 | enum machine_mode mode; | |
13612 | { | |
13613 | /* Flags and only flags can only hold CCmode values. */ | |
13614 | if (CC_REGNO_P (regno)) | |
13615 | return GET_MODE_CLASS (mode) == MODE_CC; | |
13616 | if (GET_MODE_CLASS (mode) == MODE_CC | |
13617 | || GET_MODE_CLASS (mode) == MODE_RANDOM | |
13618 | || GET_MODE_CLASS (mode) == MODE_PARTIAL_INT) | |
13619 | return 0; | |
13620 | if (FP_REGNO_P (regno)) | |
13621 | return VALID_FP_MODE_P (mode); | |
13622 | if (SSE_REGNO_P (regno)) | |
13623 | return VALID_SSE_REG_MODE (mode); | |
13624 | if (MMX_REGNO_P (regno)) | |
47f339cf | 13625 | return VALID_MMX_REG_MODE (mode) || VALID_MMX_REG_MODE_3DNOW (mode); |
a946dd00 JH |
13626 | /* We handle both integer and floats in the general purpose registers. |
13627 | In future we should be able to handle vector modes as well. */ | |
13628 | if (!VALID_INT_MODE_P (mode) && !VALID_FP_MODE_P (mode)) | |
13629 | return 0; | |
13630 | /* Take care for QImode values - they can be in non-QI regs, but then | |
13631 | they do cause partial register stalls. */ | |
d2836273 | 13632 | if (regno < 4 || mode != QImode || TARGET_64BIT) |
a946dd00 JH |
13633 | return 1; |
13634 | return reload_in_progress || reload_completed || !TARGET_PARTIAL_REG_STALL; | |
13635 | } | |
fa79946e JH |
13636 | |
13637 | /* Return the cost of moving data of mode M between a | |
13638 | register and memory. A value of 2 is the default; this cost is | |
13639 | relative to those in `REGISTER_MOVE_COST'. | |
13640 | ||
13641 | If moving between registers and memory is more expensive than | |
13642 | between two registers, you should define this macro to express the | |
a4f31c00 AJ |
13643 | relative cost. |
13644 | ||
fa79946e JH |
13645 | Model also increased moving costs of QImode registers in non |
13646 | Q_REGS classes. | |
13647 | */ | |
13648 | int | |
13649 | ix86_memory_move_cost (mode, class, in) | |
13650 | enum machine_mode mode; | |
13651 | enum reg_class class; | |
13652 | int in; | |
13653 | { | |
13654 | if (FLOAT_CLASS_P (class)) | |
13655 | { | |
13656 | int index; | |
13657 | switch (mode) | |
13658 | { | |
13659 | case SFmode: | |
13660 | index = 0; | |
13661 | break; | |
13662 | case DFmode: | |
13663 | index = 1; | |
13664 | break; | |
13665 | case XFmode: | |
13666 | case TFmode: | |
13667 | index = 2; | |
13668 | break; | |
13669 | default: | |
13670 | return 100; | |
13671 | } | |
13672 | return in ? ix86_cost->fp_load [index] : ix86_cost->fp_store [index]; | |
13673 | } | |
13674 | if (SSE_CLASS_P (class)) | |
13675 | { | |
13676 | int index; | |
13677 | switch (GET_MODE_SIZE (mode)) | |
13678 | { | |
13679 | case 4: | |
13680 | index = 0; | |
13681 | break; | |
13682 | case 8: | |
13683 | index = 1; | |
13684 | break; | |
13685 | case 16: | |
13686 | index = 2; | |
13687 | break; | |
13688 | default: | |
13689 | return 100; | |
13690 | } | |
13691 | return in ? ix86_cost->sse_load [index] : ix86_cost->sse_store [index]; | |
13692 | } | |
13693 | if (MMX_CLASS_P (class)) | |
13694 | { | |
13695 | int index; | |
13696 | switch (GET_MODE_SIZE (mode)) | |
13697 | { | |
13698 | case 4: | |
13699 | index = 0; | |
13700 | break; | |
13701 | case 8: | |
13702 | index = 1; | |
13703 | break; | |
13704 | default: | |
13705 | return 100; | |
13706 | } | |
13707 | return in ? ix86_cost->mmx_load [index] : ix86_cost->mmx_store [index]; | |
13708 | } | |
13709 | switch (GET_MODE_SIZE (mode)) | |
13710 | { | |
13711 | case 1: | |
13712 | if (in) | |
13713 | return (Q_CLASS_P (class) ? ix86_cost->int_load[0] | |
13714 | : ix86_cost->movzbl_load); | |
13715 | else | |
13716 | return (Q_CLASS_P (class) ? ix86_cost->int_store[0] | |
13717 | : ix86_cost->int_store[0] + 4); | |
13718 | break; | |
13719 | case 2: | |
13720 | return in ? ix86_cost->int_load[1] : ix86_cost->int_store[1]; | |
13721 | default: | |
13722 | /* Compute number of 32bit moves needed. TFmode is moved as XFmode. */ | |
13723 | if (mode == TFmode) | |
13724 | mode = XFmode; | |
3bb7e126 | 13725 | return ((in ? ix86_cost->int_load[2] : ix86_cost->int_store[2]) |
d09e61b9 JH |
13726 | * ((int) GET_MODE_SIZE (mode) |
13727 | + UNITS_PER_WORD -1 ) / UNITS_PER_WORD); | |
fa79946e JH |
13728 | } |
13729 | } | |
0ecf09f9 | 13730 | |
21c318ba | 13731 | #if defined (DO_GLOBAL_CTORS_BODY) && defined (HAS_INIT_SECTION) |
2cc07db4 RH |
13732 | static void |
13733 | ix86_svr3_asm_out_constructor (symbol, priority) | |
13734 | rtx symbol; | |
13735 | int priority ATTRIBUTE_UNUSED; | |
13736 | { | |
13737 | init_section (); | |
13738 | fputs ("\tpushl $", asm_out_file); | |
13739 | assemble_name (asm_out_file, XSTR (symbol, 0)); | |
13740 | fputc ('\n', asm_out_file); | |
13741 | } | |
13742 | #endif | |
162f023b | 13743 | |
b069de3b SS |
13744 | #if TARGET_MACHO |
13745 | ||
13746 | static int current_machopic_label_num; | |
13747 | ||
13748 | /* Given a symbol name and its associated stub, write out the | |
13749 | definition of the stub. */ | |
13750 | ||
13751 | void | |
13752 | machopic_output_stub (file, symb, stub) | |
13753 | FILE *file; | |
13754 | const char *symb, *stub; | |
13755 | { | |
13756 | unsigned int length; | |
13757 | char *binder_name, *symbol_name, lazy_ptr_name[32]; | |
13758 | int label = ++current_machopic_label_num; | |
13759 | ||
13760 | /* Lose our funky encoding stuff so it doesn't contaminate the stub. */ | |
13761 | symb = (*targetm.strip_name_encoding) (symb); | |
13762 | ||
13763 | length = strlen (stub); | |
13764 | binder_name = alloca (length + 32); | |
13765 | GEN_BINDER_NAME_FOR_STUB (binder_name, stub, length); | |
13766 | ||
13767 | length = strlen (symb); | |
13768 | symbol_name = alloca (length + 32); | |
13769 | GEN_SYMBOL_NAME_FOR_SYMBOL (symbol_name, symb, length); | |
13770 | ||
13771 | sprintf (lazy_ptr_name, "L%d$lz", label); | |
13772 | ||
13773 | if (MACHOPIC_PURE) | |
13774 | machopic_picsymbol_stub_section (); | |
13775 | else | |
13776 | machopic_symbol_stub_section (); | |
13777 | ||
13778 | fprintf (file, "%s:\n", stub); | |
13779 | fprintf (file, "\t.indirect_symbol %s\n", symbol_name); | |
13780 | ||
13781 | if (MACHOPIC_PURE) | |
13782 | { | |
13783 | fprintf (file, "\tcall LPC$%d\nLPC$%d:\tpopl %%eax\n", label, label); | |
13784 | fprintf (file, "\tmovl %s-LPC$%d(%%eax),%%edx\n", lazy_ptr_name, label); | |
13785 | fprintf (file, "\tjmp %%edx\n"); | |
13786 | } | |
13787 | else | |
13788 | fprintf (file, "\tjmp *%s\n", lazy_ptr_name); | |
13789 | ||
13790 | fprintf (file, "%s:\n", binder_name); | |
13791 | ||
13792 | if (MACHOPIC_PURE) | |
13793 | { | |
13794 | fprintf (file, "\tlea %s-LPC$%d(%%eax),%%eax\n", lazy_ptr_name, label); | |
13795 | fprintf (file, "\tpushl %%eax\n"); | |
13796 | } | |
13797 | else | |
13798 | fprintf (file, "\t pushl $%s\n", lazy_ptr_name); | |
13799 | ||
13800 | fprintf (file, "\tjmp dyld_stub_binding_helper\n"); | |
13801 | ||
13802 | machopic_lazy_symbol_ptr_section (); | |
13803 | fprintf (file, "%s:\n", lazy_ptr_name); | |
13804 | fprintf (file, "\t.indirect_symbol %s\n", symbol_name); | |
13805 | fprintf (file, "\t.long %s\n", binder_name); | |
13806 | } | |
13807 | #endif /* TARGET_MACHO */ | |
13808 | ||
162f023b JH |
13809 | /* Order the registers for register allocator. */ |
13810 | ||
13811 | void | |
13812 | x86_order_regs_for_local_alloc () | |
13813 | { | |
13814 | int pos = 0; | |
13815 | int i; | |
13816 | ||
13817 | /* First allocate the local general purpose registers. */ | |
13818 | for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) | |
13819 | if (GENERAL_REGNO_P (i) && call_used_regs[i]) | |
13820 | reg_alloc_order [pos++] = i; | |
13821 | ||
13822 | /* Global general purpose registers. */ | |
13823 | for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) | |
13824 | if (GENERAL_REGNO_P (i) && !call_used_regs[i]) | |
13825 | reg_alloc_order [pos++] = i; | |
13826 | ||
13827 | /* x87 registers come first in case we are doing FP math | |
13828 | using them. */ | |
13829 | if (!TARGET_SSE_MATH) | |
13830 | for (i = FIRST_STACK_REG; i <= LAST_STACK_REG; i++) | |
13831 | reg_alloc_order [pos++] = i; | |
fce5a9f2 | 13832 | |
162f023b JH |
13833 | /* SSE registers. */ |
13834 | for (i = FIRST_SSE_REG; i <= LAST_SSE_REG; i++) | |
13835 | reg_alloc_order [pos++] = i; | |
13836 | for (i = FIRST_REX_SSE_REG; i <= LAST_REX_SSE_REG; i++) | |
13837 | reg_alloc_order [pos++] = i; | |
13838 | ||
13839 | /* x87 registerts. */ | |
13840 | if (TARGET_SSE_MATH) | |
13841 | for (i = FIRST_STACK_REG; i <= LAST_STACK_REG; i++) | |
13842 | reg_alloc_order [pos++] = i; | |
13843 | ||
13844 | for (i = FIRST_MMX_REG; i <= LAST_MMX_REG; i++) | |
13845 | reg_alloc_order [pos++] = i; | |
13846 | ||
13847 | /* Initialize the rest of array as we do not allocate some registers | |
13848 | at all. */ | |
13849 | while (pos < FIRST_PSEUDO_REGISTER) | |
13850 | reg_alloc_order [pos++] = 0; | |
13851 | } | |
194734e9 JH |
13852 | |
13853 | void | |
13854 | x86_output_mi_thunk (file, delta, function) | |
13855 | FILE *file; | |
13856 | int delta; | |
13857 | tree function; | |
13858 | { | |
13859 | tree parm; | |
13860 | rtx xops[3]; | |
13861 | ||
13862 | if (ix86_regparm > 0) | |
13863 | parm = TYPE_ARG_TYPES (TREE_TYPE (function)); | |
13864 | else | |
13865 | parm = NULL_TREE; | |
13866 | for (; parm; parm = TREE_CHAIN (parm)) | |
13867 | if (TREE_VALUE (parm) == void_type_node) | |
13868 | break; | |
13869 | ||
13870 | xops[0] = GEN_INT (delta); | |
13871 | if (TARGET_64BIT) | |
13872 | { | |
13873 | int n = aggregate_value_p (TREE_TYPE (TREE_TYPE (function))) != 0; | |
13874 | xops[1] = gen_rtx_REG (DImode, x86_64_int_parameter_registers[n]); | |
13875 | output_asm_insn ("add{q} {%0, %1|%1, %0}", xops); | |
13876 | if (flag_pic) | |
13877 | { | |
13878 | fprintf (file, "\tjmp *"); | |
13879 | assemble_name (file, XSTR (XEXP (DECL_RTL (function), 0), 0)); | |
13880 | fprintf (file, "@GOTPCREL(%%rip)\n"); | |
13881 | } | |
13882 | else | |
13883 | { | |
13884 | fprintf (file, "\tjmp "); | |
13885 | assemble_name (file, XSTR (XEXP (DECL_RTL (function), 0), 0)); | |
13886 | fprintf (file, "\n"); | |
13887 | } | |
13888 | } | |
13889 | else | |
13890 | { | |
13891 | if (parm) | |
13892 | xops[1] = gen_rtx_REG (SImode, 0); | |
13893 | else if (aggregate_value_p (TREE_TYPE (TREE_TYPE (function)))) | |
13894 | xops[1] = gen_rtx_MEM (SImode, plus_constant (stack_pointer_rtx, 8)); | |
13895 | else | |
13896 | xops[1] = gen_rtx_MEM (SImode, plus_constant (stack_pointer_rtx, 4)); | |
13897 | output_asm_insn ("add{l} {%0, %1|%1, %0}", xops); | |
13898 | ||
13899 | if (flag_pic) | |
13900 | { | |
13901 | xops[0] = pic_offset_table_rtx; | |
13902 | xops[1] = gen_label_rtx (); | |
5fc0e5df | 13903 | xops[2] = gen_rtx_SYMBOL_REF (Pmode, GOT_SYMBOL_NAME); |
194734e9 JH |
13904 | |
13905 | if (ix86_regparm > 2) | |
13906 | abort (); | |
13907 | output_asm_insn ("push{l}\t%0", xops); | |
13908 | output_asm_insn ("call\t%P1", xops); | |
13909 | ASM_OUTPUT_INTERNAL_LABEL (file, "L", CODE_LABEL_NUMBER (xops[1])); | |
13910 | output_asm_insn ("pop{l}\t%0", xops); | |
13911 | output_asm_insn | |
13912 | ("add{l}\t{%2+[.-%P1], %0|%0, OFFSET FLAT: %2+[.-%P1]}", xops); | |
13913 | xops[0] = gen_rtx_MEM (SImode, XEXP (DECL_RTL (function), 0)); | |
13914 | output_asm_insn | |
13915 | ("mov{l}\t{%0@GOT(%%ebx), %%ecx|%%ecx, %0@GOT[%%ebx]}", xops); | |
13916 | asm_fprintf (file, "\tpop{l\t%%ebx|\t%%ebx}\n"); | |
13917 | asm_fprintf (file, "\tjmp\t{*%%ecx|%%ecx}\n"); | |
13918 | } | |
13919 | else | |
13920 | { | |
13921 | fprintf (file, "\tjmp "); | |
13922 | assemble_name (file, XSTR (XEXP (DECL_RTL (function), 0), 0)); | |
13923 | fprintf (file, "\n"); | |
13924 | } | |
13925 | } | |
13926 | } | |
e2500fed | 13927 | |
e932b21b JH |
13928 | int |
13929 | x86_field_alignment (field, computed) | |
13930 | tree field; | |
13931 | int computed; | |
13932 | { | |
13933 | enum machine_mode mode; | |
ad9335eb JJ |
13934 | tree type = TREE_TYPE (field); |
13935 | ||
13936 | if (TARGET_64BIT || TARGET_ALIGN_DOUBLE) | |
e932b21b | 13937 | return computed; |
ad9335eb JJ |
13938 | mode = TYPE_MODE (TREE_CODE (type) == ARRAY_TYPE |
13939 | ? get_inner_array_type (type) : type); | |
39e3a681 JJ |
13940 | if (mode == DFmode || mode == DCmode |
13941 | || GET_MODE_CLASS (mode) == MODE_INT | |
13942 | || GET_MODE_CLASS (mode) == MODE_COMPLEX_INT) | |
e932b21b JH |
13943 | return MIN (32, computed); |
13944 | return computed; | |
13945 | } | |
13946 | ||
2a500b9e JH |
13947 | /* Implement machine specific optimizations. |
13948 | At the moment we implement single transformation: AMD Athlon works faster | |
13949 | when RET is not destination of conditional jump or directly preceeded | |
13950 | by other jump instruction. We avoid the penalty by inserting NOP just | |
13951 | before the RET instructions in such cases. */ | |
13952 | void | |
13953 | x86_machine_dependent_reorg (first) | |
13954 | rtx first ATTRIBUTE_UNUSED; | |
13955 | { | |
13956 | edge e; | |
13957 | ||
13958 | if (!TARGET_ATHLON || !optimize || optimize_size) | |
13959 | return; | |
13960 | for (e = EXIT_BLOCK_PTR->pred; e; e = e->pred_next) | |
13961 | { | |
13962 | basic_block bb = e->src; | |
13963 | rtx ret = bb->end; | |
13964 | rtx prev; | |
13965 | bool insert = false; | |
13966 | ||
13967 | if (!returnjump_p (ret) || !maybe_hot_bb_p (bb)) | |
13968 | continue; | |
13969 | prev = prev_nonnote_insn (ret); | |
13970 | if (prev && GET_CODE (prev) == CODE_LABEL) | |
13971 | { | |
13972 | edge e; | |
13973 | for (e = bb->pred; e; e = e->pred_next) | |
13974 | if (EDGE_FREQUENCY (e) && e->src->index > 0 | |
13975 | && !(e->flags & EDGE_FALLTHRU)) | |
13976 | insert = 1; | |
13977 | } | |
13978 | if (!insert) | |
13979 | { | |
13980 | prev = prev_real_insn (ret); | |
13981 | if (prev && GET_CODE (prev) == JUMP_INSN | |
13982 | && any_condjump_p (prev)) | |
13983 | insert = 1; | |
13984 | } | |
13985 | if (insert) | |
13986 | emit_insn_before (gen_nop (), ret); | |
13987 | } | |
13988 | } | |
13989 | ||
e2500fed | 13990 | #include "gt-i386.h" |