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, 2005 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$a3$)",
106 "smax_optab->handlers[$A].insn_code = CODE_FOR_$(smax$a3$)",
107 "umin_optab->handlers[$A].insn_code = CODE_FOR_$(umin$I$a3$)",
108 "umax_optab->handlers[$A].insn_code = CODE_FOR_$(umax$I$a3$)",
109 "pow_optab->handlers[$A].insn_code = CODE_FOR_$(pow$a3$)",
110 "atan2_optab->handlers[$A].insn_code = CODE_FOR_$(atan2$a3$)",
111 "neg_optab->handlers[$A].insn_code = CODE_FOR_$(neg$P$a2$)",
112 "negv_optab->handlers[$A].insn_code =\n\
113 neg_optab->handlers[$A].insn_code = CODE_FOR_$(neg$F$a2$)",
114 "negv_optab->handlers[$A].insn_code = CODE_FOR_$(negv$I$a2$)",
115 "abs_optab->handlers[$A].insn_code = CODE_FOR_$(abs$P$a2$)",
116 "absv_optab->handlers[$A].insn_code =\n\
117 abs_optab->handlers[$A].insn_code = CODE_FOR_$(abs$F$a2$)",
118 "absv_optab->handlers[$A].insn_code = CODE_FOR_$(absv$I$a2$)",
119 "copysign_optab->handlers[$A].insn_code = CODE_FOR_$(copysign$F$a3$)",
120 "sqrt_optab->handlers[$A].insn_code = CODE_FOR_$(sqrt$a2$)",
121 "floor_optab->handlers[$A].insn_code = CODE_FOR_$(floor$a2$)",
122 "lfloor_optab->handlers[$A].insn_code = CODE_FOR_$(lfloor$a2$)",
123 "ceil_optab->handlers[$A].insn_code = CODE_FOR_$(ceil$a2$)",
124 "lceil_optab->handlers[$A].insn_code = CODE_FOR_$(lceil$a2$)",
125 "round_optab->handlers[$A].insn_code = CODE_FOR_$(round$a2$)",
126 "btrunc_optab->handlers[$A].insn_code = CODE_FOR_$(btrunc$a2$)",
127 "nearbyint_optab->handlers[$A].insn_code = CODE_FOR_$(nearbyint$a2$)",
128 "rint_optab->handlers[$A].insn_code = CODE_FOR_$(rint$a2$)",
129 "lrint_optab->handlers[$A].insn_code = CODE_FOR_$(lrint$a2$)",
130 "sincos_optab->handlers[$A].insn_code = CODE_FOR_$(sincos$a3$)",
131 "sin_optab->handlers[$A].insn_code = CODE_FOR_$(sin$a2$)",
132 "asin_optab->handlers[$A].insn_code = CODE_FOR_$(asin$a2$)",
133 "cos_optab->handlers[$A].insn_code = CODE_FOR_$(cos$a2$)",
134 "acos_optab->handlers[$A].insn_code = CODE_FOR_$(acos$a2$)",
135 "exp_optab->handlers[$A].insn_code = CODE_FOR_$(exp$a2$)",
136 "exp10_optab->handlers[$A].insn_code = CODE_FOR_$(exp10$a2$)",
137 "exp2_optab->handlers[$A].insn_code = CODE_FOR_$(exp2$a2$)",
138 "expm1_optab->handlers[$A].insn_code = CODE_FOR_$(expm1$a2$)",
139 "ldexp_optab->handlers[$A].insn_code = CODE_FOR_$(ldexp$a3$)",
140 "logb_optab->handlers[$A].insn_code = CODE_FOR_$(logb$a2$)",
141 "ilogb_optab->handlers[$A].insn_code = CODE_FOR_$(ilogb$a2$)",
142 "log_optab->handlers[$A].insn_code = CODE_FOR_$(log$a2$)",
143 "log10_optab->handlers[$A].insn_code = CODE_FOR_$(log10$a2$)",
144 "log2_optab->handlers[$A].insn_code = CODE_FOR_$(log2$a2$)",
145 "log1p_optab->handlers[$A].insn_code = CODE_FOR_$(log1p$a2$)",
146 "tan_optab->handlers[$A].insn_code = CODE_FOR_$(tan$a2$)",
147 "atan_optab->handlers[$A].insn_code = CODE_FOR_$(atan$a2$)",
148 "strlen_optab->handlers[$A].insn_code = CODE_FOR_$(strlen$a$)",
149 "one_cmpl_optab->handlers[$A].insn_code = CODE_FOR_$(one_cmpl$a2$)",
150 "ffs_optab->handlers[$A].insn_code = CODE_FOR_$(ffs$a2$)",
151 "clz_optab->handlers[$A].insn_code = CODE_FOR_$(clz$a2$)",
152 "ctz_optab->handlers[$A].insn_code = CODE_FOR_$(ctz$a2$)",
153 "popcount_optab->handlers[$A].insn_code = CODE_FOR_$(popcount$a2$)",
154 "parity_optab->handlers[$A].insn_code = CODE_FOR_$(parity$a2$)",
155 "mov_optab->handlers[$A].insn_code = CODE_FOR_$(mov$a$)",
156 "movstrict_optab->handlers[$A].insn_code = CODE_FOR_$(movstrict$a$)",
157 "movmisalign_optab->handlers[$A].insn_code = CODE_FOR_$(movmisalign$a$)",
158 "cmp_optab->handlers[$A].insn_code = CODE_FOR_$(cmp$a$)",
159 "tst_optab->handlers[$A].insn_code = CODE_FOR_$(tst$a$)",
160 "addcc_optab->handlers[$A].insn_code = CODE_FOR_$(add$acc$)",
161 "bcc_gen_fctn[$C] = gen_$(b$c$)",
162 "setcc_gen_code[$C] = CODE_FOR_$(s$c$)",
163 "movcc_gen_code[$A] = CODE_FOR_$(mov$acc$)",
164 "cbranch_optab->handlers[$A].insn_code = CODE_FOR_$(cbranch$a4$)",
165 "cmov_optab->handlers[$A].insn_code = CODE_FOR_$(cmov$a6$)",
166 "cstore_optab->handlers[$A].insn_code = CODE_FOR_$(cstore$a4$)",
167 "push_optab->handlers[$A].insn_code = CODE_FOR_$(push$a1$)",
168 "reload_in_optab[$A] = CODE_FOR_$(reload_in$a$)",
169 "reload_out_optab[$A] = CODE_FOR_$(reload_out$a$)",
170 "movmem_optab[$A] = CODE_FOR_$(movmem$a$)",
171 "clrmem_optab[$A] = CODE_FOR_$(clrmem$a$)",
172 "cmpstr_optab[$A] = CODE_FOR_$(cmpstr$a$)",
173 "cmpmem_optab[$A] = CODE_FOR_$(cmpmem$a$)",
174 "vec_set_optab->handlers[$A].insn_code = CODE_FOR_$(vec_set$a$)",
175 "vec_extract_optab->handlers[$A].insn_code = CODE_FOR_$(vec_extract$a$)",
176 "vec_init_optab->handlers[$A].insn_code = CODE_FOR_$(vec_init$a$)",
177 "vec_realign_load_optab->handlers[$A].insn_code = CODE_FOR_$(vec_realign_load_$a$)",
178 "vcond_gen_code[$A] = CODE_FOR_$(vcond$a$)",
179 "vcondu_gen_code[$A] = CODE_FOR_$(vcondu$a$)" };
181 static void gen_insn (rtx);
186 const char *name = XSTR (insn, 0);
187 int m1 = 0, m2 = 0, op = 0;
190 const char *np, *pp, *p, *q;
192 /* Don't mention instructions whose names are the null string.
193 They are in the machine description just to be recognized. */
197 /* See if NAME matches one of the patterns we have for the optabs we know
200 for (pindex = 0; pindex < ARRAY_SIZE (optabs); pindex++)
202 int force_float = 0, force_int = 0, force_partial_int = 0;
203 int force_consec = 0;
206 for (pp = optabs[pindex]; pp[0] != '$' || pp[1] != '('; pp++)
209 for (pp += 2, np = name; matches && ! (pp[0] == '$' && pp[1] == ')');
227 force_partial_int = 1;
235 for (op = 0; op < NUM_RTX_CODE; op++)
237 for (p = GET_RTX_NAME(op), q = np; *p; p++, q++)
241 /* We have to be concerned about matching "gt" and
242 missing "gtu", e.g., so verify we have reached the
243 end of thing we are to match. */
244 if (*p == 0 && *q == 0
245 && (GET_RTX_CLASS (op) == RTX_COMPARE
246 || GET_RTX_CLASS (op) == RTX_COMM_COMPARE))
250 if (op == NUM_RTX_CODE)
253 np += strlen (GET_RTX_NAME(op));
257 /* This loop will stop at the first prefix match, so
258 look through the modes in reverse order, in case
259 there are extra CC modes and CC is a prefix of the
260 CC modes (as it should be). */
261 for (i = (MAX_MACHINE_MODE) - 1; i >= 0; i--)
263 for (p = GET_MODE_NAME(i), q = np; *p; p++, q++)
264 if (TOLOWER (*p) != *q)
268 && (! force_int || mode_class[i] == MODE_INT
269 || mode_class[i] == MODE_VECTOR_INT)
270 && (! force_partial_int
271 || mode_class[i] == MODE_INT
272 || mode_class[i] == MODE_PARTIAL_INT
273 || mode_class[i] == MODE_VECTOR_INT)
274 && (! force_float || mode_class[i] == MODE_FLOAT
275 || mode_class[i] == MODE_COMPLEX_FLOAT
276 || mode_class[i] == MODE_VECTOR_FLOAT))
283 m1 = i, np += strlen (GET_MODE_NAME(i));
285 m2 = i, np += strlen (GET_MODE_NAME(i));
287 force_int = force_partial_int = force_float = 0;
295 if (matches && pp[0] == '$' && pp[1] == ')'
297 && (! force_consec || (int) GET_MODE_WIDER_MODE(m1) == m2))
301 if (pindex == ARRAY_SIZE (optabs))
304 /* We found a match. If this pattern is only conditionally present,
305 write out the "if" and two extra blanks. */
307 if (*XSTR (insn, 2) != 0)
308 printf (" if (HAVE_%s)\n ", name);
312 /* Now write out the initialization, making all required substitutions. */
313 for (pp = optabs[pindex]; *pp; pp++)
321 case 'I': case 'F': case 'N':
324 if (GET_MODE_CLASS (m1) == MODE_FLOAT)
328 for (np = GET_MODE_NAME(m1); *np; np++)
329 putchar (TOLOWER (*np));
332 for (np = GET_MODE_NAME(m2); *np; np++)
333 putchar (TOLOWER (*np));
336 printf ("%smode", GET_MODE_NAME(m1));
339 printf ("%smode", GET_MODE_NAME(m2));
342 printf ("%s", GET_RTX_NAME(op));
345 for (np = GET_RTX_NAME(op); *np; np++)
346 putchar (TOUPPER (*np));
354 extern int main (int, char **);
357 main (int argc, char **argv)
361 progname = "genopinit";
363 if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
364 return (FATAL_EXIT_CODE);
366 printf ("/* Generated automatically by the program `genopinit'\n\
367 from the machine description file `md'. */\n\n");
369 printf ("#include \"config.h\"\n");
370 printf ("#include \"system.h\"\n");
371 printf ("#include \"coretypes.h\"\n");
372 printf ("#include \"tm.h\"\n");
373 printf ("#include \"rtl.h\"\n");
374 printf ("#include \"flags.h\"\n");
375 printf ("#include \"insn-config.h\"\n");
376 printf ("#include \"recog.h\"\n");
377 printf ("#include \"expr.h\"\n");
378 printf ("#include \"optabs.h\"\n");
379 printf ("#include \"reload.h\"\n\n");
381 printf ("void\ninit_all_optabs (void)\n{\n");
384 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
388 /* Read the machine description. */
392 int line_no, insn_code_number = 0;
394 desc = read_md_rtx (&line_no, &insn_code_number);
398 if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
404 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
405 /* This flag says the same insns that convert to a signed fixnum\n\
406 also convert validly to an unsigned one. */\n\
407 for (i = 0; i < NUM_MACHINE_MODES; i++)\n\
408 for (j = 0; j < NUM_MACHINE_MODES; j++)\n\
409 ufixtrunc_optab->handlers[i][j].insn_code\n\
410 = sfixtrunc_optab->handlers[i][j].insn_code;\n\
415 return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
418 /* Define this so we can link with print-rtl.o to get debug_rtx function. */
420 get_insn_name (int code ATTRIBUTE_UNUSED)