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gcc.gnu.org Git - gcc.git/blob - gcc/genopinit.c
1 /* Generate code to initialize optabs from machine description.
2 Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
3 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
25 #include "coretypes.h"
29 #include "gensupport.h"
32 /* Many parts of GCC use arrays that are indexed by machine mode and
33 contain the insn codes for pattern in the MD file that perform a given
34 operation on operands of that mode.
36 These patterns are present in the MD file with names that contain
37 the mode(s) used and the name of the operation. This program
38 writes a function `init_all_optabs' that initializes the optabs with
39 all the insn codes of the relevant patterns present in the MD file.
41 This array contains a list of optabs that need to be initialized. Within
42 each string, the name of the pattern to be matched against is delimited
43 with $( and $). In the string, $a and $b are used to match a short mode
44 name (the part of the mode name not including `mode' and converted to
45 lower-case). When writing out the initializer, the entire string is
46 used. $A and $B are replaced with the full name of the mode; $a and $b
47 are replaced with the short form of the name, as above.
49 If $N is present in the pattern, it means the two modes must be consecutive
50 widths in the same mode class (e.g, QImode and HImode). $I means that
51 only full integer modes should be considered for the next mode, and $F
52 means that only float modes should be considered.
53 $P means that both full and partial integer modes should be considered.
55 $V means to emit 'v' if the first mode is a MODE_FLOAT mode.
57 For some optabs, we store the operation by RTL codes. These are only
58 used for comparisons. In that case, $c and $C are the lower-case and
59 upper-case forms of the comparison, respectively. */
61 static const char * const optabs
[] =
62 { "sext_optab->handlers[$B][$A].insn_code = CODE_FOR_$(extend$a$b2$)",
63 "zext_optab->handlers[$B][$A].insn_code = CODE_FOR_$(zero_extend$a$b2$)",
64 "sfix_optab->handlers[$B][$A].insn_code = CODE_FOR_$(fix$F$a$I$b2$)",
65 "ufix_optab->handlers[$B][$A].insn_code = CODE_FOR_$(fixuns$F$a$b2$)",
66 "sfixtrunc_optab->handlers[$B][$A].insn_code = CODE_FOR_$(fix_trunc$F$a$I$b2$)",
67 "ufixtrunc_optab->handlers[$B][$A].insn_code = CODE_FOR_$(fixuns_trunc$F$a$I$b2$)",
68 "sfloat_optab->handlers[$B][$A].insn_code = CODE_FOR_$(float$I$a$F$b2$)",
69 "ufloat_optab->handlers[$B][$A].insn_code = CODE_FOR_$(floatuns$I$a$F$b2$)",
70 "trunc_optab->handlers[$B][$A].insn_code = CODE_FOR_$(trunc$a$b2$)",
71 "add_optab->handlers[$A].insn_code = CODE_FOR_$(add$P$a3$)",
72 "addv_optab->handlers[$A].insn_code =\n\
73 add_optab->handlers[$A].insn_code = CODE_FOR_$(add$F$a3$)",
74 "addv_optab->handlers[$A].insn_code = CODE_FOR_$(addv$I$a3$)",
75 "sub_optab->handlers[$A].insn_code = CODE_FOR_$(sub$P$a3$)",
76 "subv_optab->handlers[$A].insn_code =\n\
77 sub_optab->handlers[$A].insn_code = CODE_FOR_$(sub$F$a3$)",
78 "subv_optab->handlers[$A].insn_code = CODE_FOR_$(subv$I$a3$)",
79 "smul_optab->handlers[$A].insn_code = CODE_FOR_$(mul$P$a3$)",
80 "smulv_optab->handlers[$A].insn_code =\n\
81 smul_optab->handlers[$A].insn_code = CODE_FOR_$(mul$F$a3$)",
82 "smulv_optab->handlers[$A].insn_code = CODE_FOR_$(mulv$I$a3$)",
83 "umul_highpart_optab->handlers[$A].insn_code = CODE_FOR_$(umul$a3_highpart$)",
84 "smul_highpart_optab->handlers[$A].insn_code = CODE_FOR_$(smul$a3_highpart$)",
85 "smul_widen_optab->handlers[$B].insn_code = CODE_FOR_$(mul$a$b3$)$N",
86 "umul_widen_optab->handlers[$B].insn_code = CODE_FOR_$(umul$a$b3$)$N",
87 "sdiv_optab->handlers[$A].insn_code = CODE_FOR_$(div$a3$)",
88 "sdivv_optab->handlers[$A].insn_code = CODE_FOR_$(div$V$I$a3$)",
89 "udiv_optab->handlers[$A].insn_code = CODE_FOR_$(udiv$I$a3$)",
90 "sdivmod_optab->handlers[$A].insn_code = CODE_FOR_$(divmod$a4$)",
91 "udivmod_optab->handlers[$A].insn_code = CODE_FOR_$(udivmod$a4$)",
92 "smod_optab->handlers[$A].insn_code = CODE_FOR_$(mod$a3$)",
93 "umod_optab->handlers[$A].insn_code = CODE_FOR_$(umod$a3$)",
94 "fmod_optab->handlers[$A].insn_code = CODE_FOR_$(fmod$a3$)",
95 "drem_optab->handlers[$A].insn_code = CODE_FOR_$(drem$a3$)",
96 "ftrunc_optab->handlers[$A].insn_code = CODE_FOR_$(ftrunc$F$a2$)",
97 "and_optab->handlers[$A].insn_code = CODE_FOR_$(and$a3$)",
98 "ior_optab->handlers[$A].insn_code = CODE_FOR_$(ior$a3$)",
99 "xor_optab->handlers[$A].insn_code = CODE_FOR_$(xor$a3$)",
100 "ashl_optab->handlers[$A].insn_code = CODE_FOR_$(ashl$a3$)",
101 "ashr_optab->handlers[$A].insn_code = CODE_FOR_$(ashr$a3$)",
102 "lshr_optab->handlers[$A].insn_code = CODE_FOR_$(lshr$a3$)",
103 "rotl_optab->handlers[$A].insn_code = CODE_FOR_$(rotl$a3$)",
104 "rotr_optab->handlers[$A].insn_code = CODE_FOR_$(rotr$a3$)",
105 "smin_optab->handlers[$A].insn_code = CODE_FOR_$(smin$I$a3$)",
106 "smin_optab->handlers[$A].insn_code = CODE_FOR_$(min$F$a3$)",
107 "smax_optab->handlers[$A].insn_code = CODE_FOR_$(smax$I$a3$)",
108 "smax_optab->handlers[$A].insn_code = CODE_FOR_$(max$F$a3$)",
109 "umin_optab->handlers[$A].insn_code = CODE_FOR_$(umin$I$a3$)",
110 "umax_optab->handlers[$A].insn_code = CODE_FOR_$(umax$I$a3$)",
111 "pow_optab->handlers[$A].insn_code = CODE_FOR_$(pow$a3$)",
112 "atan2_optab->handlers[$A].insn_code = CODE_FOR_$(atan2$a3$)",
113 "neg_optab->handlers[$A].insn_code = CODE_FOR_$(neg$P$a2$)",
114 "negv_optab->handlers[$A].insn_code =\n\
115 neg_optab->handlers[$A].insn_code = CODE_FOR_$(neg$F$a2$)",
116 "negv_optab->handlers[$A].insn_code = CODE_FOR_$(negv$I$a2$)",
117 "abs_optab->handlers[$A].insn_code = CODE_FOR_$(abs$P$a2$)",
118 "absv_optab->handlers[$A].insn_code =\n\
119 abs_optab->handlers[$A].insn_code = CODE_FOR_$(abs$F$a2$)",
120 "absv_optab->handlers[$A].insn_code = CODE_FOR_$(absv$I$a2$)",
121 "sqrt_optab->handlers[$A].insn_code = CODE_FOR_$(sqrt$a2$)",
122 "floor_optab->handlers[$A].insn_code = CODE_FOR_$(floor$a2$)",
123 "ceil_optab->handlers[$A].insn_code = CODE_FOR_$(ceil$a2$)",
124 "round_optab->handlers[$A].insn_code = CODE_FOR_$(round$a2$)",
125 "trunc_optab->handlers[$A].insn_code = CODE_FOR_$(trunc$a2$)",
126 "nearbyint_optab->handlers[$A].insn_code = CODE_FOR_$(nearbyint$a2$)",
127 "sincos_optab->handlers[$A].insn_code = CODE_FOR_$(sincos$a3$)",
128 "sin_optab->handlers[$A].insn_code = CODE_FOR_$(sin$a2$)",
129 "asin_optab->handlers[$A].insn_code = CODE_FOR_$(asin$a2$)",
130 "cos_optab->handlers[$A].insn_code = CODE_FOR_$(cos$a2$)",
131 "acos_optab->handlers[$A].insn_code = CODE_FOR_$(acos$a2$)",
132 "exp_optab->handlers[$A].insn_code = CODE_FOR_$(exp$a2$)",
133 "exp10_optab->handlers[$A].insn_code = CODE_FOR_$(exp10$a2$)",
134 "exp2_optab->handlers[$A].insn_code = CODE_FOR_$(exp2$a2$)",
135 "expm1_optab->handlers[$A].insn_code = CODE_FOR_$(expm1$a2$)",
136 "logb_optab->handlers[$A].insn_code = CODE_FOR_$(logb$a2$)",
137 "ilogb_optab->handlers[$A].insn_code = CODE_FOR_$(ilogb$a2$)",
138 "log_optab->handlers[$A].insn_code = CODE_FOR_$(log$a2$)",
139 "log10_optab->handlers[$A].insn_code = CODE_FOR_$(log10$a2$)",
140 "log2_optab->handlers[$A].insn_code = CODE_FOR_$(log2$a2$)",
141 "log1p_optab->handlers[$A].insn_code = CODE_FOR_$(log1p$a2$)",
142 "tan_optab->handlers[$A].insn_code = CODE_FOR_$(tan$a2$)",
143 "atan_optab->handlers[$A].insn_code = CODE_FOR_$(atan$a2$)",
144 "strlen_optab->handlers[$A].insn_code = CODE_FOR_$(strlen$a$)",
145 "one_cmpl_optab->handlers[$A].insn_code = CODE_FOR_$(one_cmpl$a2$)",
146 "ffs_optab->handlers[$A].insn_code = CODE_FOR_$(ffs$a2$)",
147 "clz_optab->handlers[$A].insn_code = CODE_FOR_$(clz$a2$)",
148 "ctz_optab->handlers[$A].insn_code = CODE_FOR_$(ctz$a2$)",
149 "popcount_optab->handlers[$A].insn_code = CODE_FOR_$(popcount$a2$)",
150 "parity_optab->handlers[$A].insn_code = CODE_FOR_$(parity$a2$)",
151 "mov_optab->handlers[$A].insn_code = CODE_FOR_$(mov$a$)",
152 "movstrict_optab->handlers[$A].insn_code = CODE_FOR_$(movstrict$a$)",
153 "cmp_optab->handlers[$A].insn_code = CODE_FOR_$(cmp$a$)",
154 "tst_optab->handlers[$A].insn_code = CODE_FOR_$(tst$a$)",
155 "addcc_optab->handlers[$A].insn_code = CODE_FOR_$(add$acc$)",
156 "bcc_gen_fctn[$C] = gen_$(b$c$)",
157 "setcc_gen_code[$C] = CODE_FOR_$(s$c$)",
158 "movcc_gen_code[$A] = CODE_FOR_$(mov$acc$)",
159 "cbranch_optab->handlers[$A].insn_code = CODE_FOR_$(cbranch$a4$)",
160 "cmov_optab->handlers[$A].insn_code = CODE_FOR_$(cmov$a6$)",
161 "cstore_optab->handlers[$A].insn_code = CODE_FOR_$(cstore$a4$)",
162 "push_optab->handlers[$A].insn_code = CODE_FOR_$(push$a1$)",
163 "reload_in_optab[$A] = CODE_FOR_$(reload_in$a$)",
164 "reload_out_optab[$A] = CODE_FOR_$(reload_out$a$)",
165 "movstr_optab[$A] = CODE_FOR_$(movstr$a$)",
166 "clrstr_optab[$A] = CODE_FOR_$(clrstr$a$)",
167 "cmpstr_optab[$A] = CODE_FOR_$(cmpstr$a$)",
168 "cmpmem_optab[$A] = CODE_FOR_$(cmpmem$a$)",
169 "vec_set_optab->handlers[$A].insn_code = CODE_FOR_$(vec_set$a$)",
170 "vec_extract_optab->handlers[$A].insn_code = CODE_FOR_$(vec_extract$a$)",
171 "vec_init_optab->handlers[$A].insn_code = CODE_FOR_$(vec_init$a$)" };
173 static void gen_insn (rtx
);
178 const char *name
= XSTR (insn
, 0);
179 int m1
= 0, m2
= 0, op
= 0;
182 const char *np
, *pp
, *p
, *q
;
184 /* Don't mention instructions whose names are the null string.
185 They are in the machine description just to be recognized. */
189 /* See if NAME matches one of the patterns we have for the optabs we know
192 for (pindex
= 0; pindex
< ARRAY_SIZE (optabs
); pindex
++)
194 int force_float
= 0, force_int
= 0, force_partial_int
= 0;
195 int force_consec
= 0;
198 for (pp
= optabs
[pindex
]; pp
[0] != '$' || pp
[1] != '('; pp
++)
201 for (pp
+= 2, np
= name
; matches
&& ! (pp
[0] == '$' && pp
[1] == ')');
219 force_partial_int
= 1;
227 for (op
= 0; op
< NUM_RTX_CODE
; op
++)
229 for (p
= GET_RTX_NAME(op
), q
= np
; *p
; p
++, q
++)
233 /* We have to be concerned about matching "gt" and
234 missing "gtu", e.g., so verify we have reached the
235 end of thing we are to match. */
236 if (*p
== 0 && *q
== 0
237 && (GET_RTX_CLASS (op
) == RTX_COMPARE
238 || GET_RTX_CLASS (op
) == RTX_COMM_COMPARE
))
242 if (op
== NUM_RTX_CODE
)
245 np
+= strlen (GET_RTX_NAME(op
));
249 /* This loop will stop at the first prefix match, so
250 look through the modes in reverse order, in case
251 there are extra CC modes and CC is a prefix of the
252 CC modes (as it should be). */
253 for (i
= (MAX_MACHINE_MODE
) - 1; i
>= 0; i
--)
255 for (p
= GET_MODE_NAME(i
), q
= np
; *p
; p
++, q
++)
256 if (TOLOWER (*p
) != *q
)
260 && (! force_int
|| mode_class
[i
] == MODE_INT
261 || mode_class
[i
] == MODE_VECTOR_INT
)
262 && (! force_partial_int
263 || mode_class
[i
] == MODE_INT
264 || mode_class
[i
] == MODE_PARTIAL_INT
265 || mode_class
[i
] == MODE_VECTOR_INT
)
266 && (! force_float
|| mode_class
[i
] == MODE_FLOAT
267 || mode_class
[i
] == MODE_VECTOR_FLOAT
))
274 m1
= i
, np
+= strlen (GET_MODE_NAME(i
));
276 m2
= i
, np
+= strlen (GET_MODE_NAME(i
));
278 force_int
= force_partial_int
= force_float
= 0;
286 if (matches
&& pp
[0] == '$' && pp
[1] == ')'
288 && (! force_consec
|| (int) GET_MODE_WIDER_MODE(m1
) == m2
))
292 if (pindex
== ARRAY_SIZE (optabs
))
295 /* We found a match. If this pattern is only conditionally present,
296 write out the "if" and two extra blanks. */
298 if (*XSTR (insn
, 2) != 0)
299 printf (" if (HAVE_%s)\n ", name
);
303 /* Now write out the initialization, making all required substitutions. */
304 for (pp
= optabs
[pindex
]; *pp
; pp
++)
312 case 'I': case 'F': case 'N':
315 if (GET_MODE_CLASS (m1
) == MODE_FLOAT
)
319 for (np
= GET_MODE_NAME(m1
); *np
; np
++)
320 putchar (TOLOWER (*np
));
323 for (np
= GET_MODE_NAME(m2
); *np
; np
++)
324 putchar (TOLOWER (*np
));
327 printf ("%smode", GET_MODE_NAME(m1
));
330 printf ("%smode", GET_MODE_NAME(m2
));
333 printf ("%s", GET_RTX_NAME(op
));
336 for (np
= GET_RTX_NAME(op
); *np
; np
++)
337 putchar (TOUPPER (*np
));
345 extern int main (int, char **);
348 main (int argc
, char **argv
)
352 progname
= "genopinit";
355 fatal ("no input file name");
357 if (init_md_reader_args (argc
, argv
) != SUCCESS_EXIT_CODE
)
358 return (FATAL_EXIT_CODE
);
360 printf ("/* Generated automatically by the program `genopinit'\n\
361 from the machine description file `md'. */\n\n");
363 printf ("#include \"config.h\"\n");
364 printf ("#include \"system.h\"\n");
365 printf ("#include \"coretypes.h\"\n");
366 printf ("#include \"tm.h\"\n");
367 printf ("#include \"rtl.h\"\n");
368 printf ("#include \"flags.h\"\n");
369 printf ("#include \"insn-config.h\"\n");
370 printf ("#include \"recog.h\"\n");
371 printf ("#include \"expr.h\"\n");
372 printf ("#include \"optabs.h\"\n");
373 printf ("#include \"reload.h\"\n\n");
375 printf ("void\ninit_all_optabs (void)\n{\n");
378 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
382 /* Read the machine description. */
386 int line_no
, insn_code_number
= 0;
388 desc
= read_md_rtx (&line_no
, &insn_code_number
);
392 if (GET_CODE (desc
) == DEFINE_INSN
|| GET_CODE (desc
) == DEFINE_EXPAND
)
398 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
399 /* This flag says the same insns that convert to a signed fixnum\n\
400 also convert validly to an unsigned one. */\n\
401 for (i = 0; i < NUM_MACHINE_MODES; i++)\n\
402 for (j = 0; j < NUM_MACHINE_MODES; j++)\n\
403 ufixtrunc_optab->handlers[i][j].insn_code\n\
404 = sfixtrunc_optab->handlers[i][j].insn_code;\n\
409 return (ferror (stdout
) != 0 ? FATAL_EXIT_CODE
: SUCCESS_EXIT_CODE
);
412 /* Define this so we can link with print-rtl.o to get debug_rtx function. */
414 get_insn_name (int code ATTRIBUTE_UNUSED
)
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