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, 2006 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, 51 Franklin Street, Fifth Floor, 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 "usmul_widen_optab->handlers[$B].insn_code = CODE_FOR_$(usmul$a$b3$)$N",
88 "sdiv_optab->handlers[$A].insn_code = CODE_FOR_$(div$a3$)",
89 "sdivv_optab->handlers[$A].insn_code = CODE_FOR_$(div$V$I$a3$)",
90 "udiv_optab->handlers[$A].insn_code = CODE_FOR_$(udiv$I$a3$)",
91 "sdivmod_optab->handlers[$A].insn_code = CODE_FOR_$(divmod$a4$)",
92 "udivmod_optab->handlers[$A].insn_code = CODE_FOR_$(udivmod$a4$)",
93 "smod_optab->handlers[$A].insn_code = CODE_FOR_$(mod$a3$)",
94 "umod_optab->handlers[$A].insn_code = CODE_FOR_$(umod$a3$)",
95 "fmod_optab->handlers[$A].insn_code = CODE_FOR_$(fmod$a3$)",
96 "drem_optab->handlers[$A].insn_code = CODE_FOR_$(drem$a3$)",
97 "ftrunc_optab->handlers[$A].insn_code = CODE_FOR_$(ftrunc$F$a2$)",
98 "and_optab->handlers[$A].insn_code = CODE_FOR_$(and$a3$)",
99 "ior_optab->handlers[$A].insn_code = CODE_FOR_$(ior$a3$)",
100 "xor_optab->handlers[$A].insn_code = CODE_FOR_$(xor$a3$)",
101 "ashl_optab->handlers[$A].insn_code = CODE_FOR_$(ashl$a3$)",
102 "ashr_optab->handlers[$A].insn_code = CODE_FOR_$(ashr$a3$)",
103 "lshr_optab->handlers[$A].insn_code = CODE_FOR_$(lshr$a3$)",
104 "rotl_optab->handlers[$A].insn_code = CODE_FOR_$(rotl$a3$)",
105 "rotr_optab->handlers[$A].insn_code = CODE_FOR_$(rotr$a3$)",
106 "smin_optab->handlers[$A].insn_code = CODE_FOR_$(smin$a3$)",
107 "smax_optab->handlers[$A].insn_code = CODE_FOR_$(smax$a3$)",
108 "umin_optab->handlers[$A].insn_code = CODE_FOR_$(umin$I$a3$)",
109 "umax_optab->handlers[$A].insn_code = CODE_FOR_$(umax$I$a3$)",
110 "pow_optab->handlers[$A].insn_code = CODE_FOR_$(pow$a3$)",
111 "atan2_optab->handlers[$A].insn_code = CODE_FOR_$(atan2$a3$)",
112 "neg_optab->handlers[$A].insn_code = CODE_FOR_$(neg$P$a2$)",
113 "negv_optab->handlers[$A].insn_code =\n\
114 neg_optab->handlers[$A].insn_code = CODE_FOR_$(neg$F$a2$)",
115 "negv_optab->handlers[$A].insn_code = CODE_FOR_$(negv$I$a2$)",
116 "abs_optab->handlers[$A].insn_code = CODE_FOR_$(abs$P$a2$)",
117 "absv_optab->handlers[$A].insn_code =\n\
118 abs_optab->handlers[$A].insn_code = CODE_FOR_$(abs$F$a2$)",
119 "absv_optab->handlers[$A].insn_code = CODE_FOR_$(absv$I$a2$)",
120 "copysign_optab->handlers[$A].insn_code = CODE_FOR_$(copysign$F$a3$)",
121 "sqrt_optab->handlers[$A].insn_code = CODE_FOR_$(sqrt$a2$)",
122 "floor_optab->handlers[$A].insn_code = CODE_FOR_$(floor$a2$)",
123 "lfloor_optab->handlers[$A].insn_code = CODE_FOR_$(lfloor$a2$)",
124 "ceil_optab->handlers[$A].insn_code = CODE_FOR_$(ceil$a2$)",
125 "lceil_optab->handlers[$A].insn_code = CODE_FOR_$(lceil$a2$)",
126 "round_optab->handlers[$A].insn_code = CODE_FOR_$(round$a2$)",
127 "btrunc_optab->handlers[$A].insn_code = CODE_FOR_$(btrunc$a2$)",
128 "nearbyint_optab->handlers[$A].insn_code = CODE_FOR_$(nearbyint$a2$)",
129 "rint_optab->handlers[$A].insn_code = CODE_FOR_$(rint$a2$)",
130 "lrint_optab->handlers[$A].insn_code = CODE_FOR_$(lrint$a2$)",
131 "sincos_optab->handlers[$A].insn_code = CODE_FOR_$(sincos$a3$)",
132 "sin_optab->handlers[$A].insn_code = CODE_FOR_$(sin$a2$)",
133 "asin_optab->handlers[$A].insn_code = CODE_FOR_$(asin$a2$)",
134 "cos_optab->handlers[$A].insn_code = CODE_FOR_$(cos$a2$)",
135 "acos_optab->handlers[$A].insn_code = CODE_FOR_$(acos$a2$)",
136 "exp_optab->handlers[$A].insn_code = CODE_FOR_$(exp$a2$)",
137 "exp10_optab->handlers[$A].insn_code = CODE_FOR_$(exp10$a2$)",
138 "exp2_optab->handlers[$A].insn_code = CODE_FOR_$(exp2$a2$)",
139 "expm1_optab->handlers[$A].insn_code = CODE_FOR_$(expm1$a2$)",
140 "ldexp_optab->handlers[$A].insn_code = CODE_FOR_$(ldexp$a3$)",
141 "logb_optab->handlers[$A].insn_code = CODE_FOR_$(logb$a2$)",
142 "ilogb_optab->handlers[$A].insn_code = CODE_FOR_$(ilogb$a2$)",
143 "log_optab->handlers[$A].insn_code = CODE_FOR_$(log$a2$)",
144 "log10_optab->handlers[$A].insn_code = CODE_FOR_$(log10$a2$)",
145 "log2_optab->handlers[$A].insn_code = CODE_FOR_$(log2$a2$)",
146 "log1p_optab->handlers[$A].insn_code = CODE_FOR_$(log1p$a2$)",
147 "tan_optab->handlers[$A].insn_code = CODE_FOR_$(tan$a2$)",
148 "atan_optab->handlers[$A].insn_code = CODE_FOR_$(atan$a2$)",
149 "strlen_optab->handlers[$A].insn_code = CODE_FOR_$(strlen$a$)",
150 "one_cmpl_optab->handlers[$A].insn_code = CODE_FOR_$(one_cmpl$a2$)",
151 "bswap_optab->handlers[$A].insn_code = CODE_FOR_$(bswap$a2$)",
152 "ffs_optab->handlers[$A].insn_code = CODE_FOR_$(ffs$a2$)",
153 "clz_optab->handlers[$A].insn_code = CODE_FOR_$(clz$a2$)",
154 "ctz_optab->handlers[$A].insn_code = CODE_FOR_$(ctz$a2$)",
155 "popcount_optab->handlers[$A].insn_code = CODE_FOR_$(popcount$a2$)",
156 "parity_optab->handlers[$A].insn_code = CODE_FOR_$(parity$a2$)",
157 "mov_optab->handlers[$A].insn_code = CODE_FOR_$(mov$a$)",
158 "movstrict_optab->handlers[$A].insn_code = CODE_FOR_$(movstrict$a$)",
159 "movmisalign_optab->handlers[$A].insn_code = CODE_FOR_$(movmisalign$a$)",
160 "cmp_optab->handlers[$A].insn_code = CODE_FOR_$(cmp$a$)",
161 "tst_optab->handlers[$A].insn_code = CODE_FOR_$(tst$a$)",
162 "addcc_optab->handlers[$A].insn_code = CODE_FOR_$(add$acc$)",
163 "bcc_gen_fctn[$C] = gen_$(b$c$)",
164 "setcc_gen_code[$C] = CODE_FOR_$(s$c$)",
165 "movcc_gen_code[$A] = CODE_FOR_$(mov$acc$)",
166 "cbranch_optab->handlers[$A].insn_code = CODE_FOR_$(cbranch$a4$)",
167 "cmov_optab->handlers[$A].insn_code = CODE_FOR_$(cmov$a6$)",
168 "cstore_optab->handlers[$A].insn_code = CODE_FOR_$(cstore$a4$)",
169 "push_optab->handlers[$A].insn_code = CODE_FOR_$(push$a1$)",
170 "reload_in_optab[$A] = CODE_FOR_$(reload_in$a$)",
171 "reload_out_optab[$A] = CODE_FOR_$(reload_out$a$)",
172 "movmem_optab[$A] = CODE_FOR_$(movmem$a$)",
173 "cmpstr_optab[$A] = CODE_FOR_$(cmpstr$a$)",
174 "cmpstrn_optab[$A] = CODE_FOR_$(cmpstrn$a$)",
175 "cmpmem_optab[$A] = CODE_FOR_$(cmpmem$a$)",
176 "setmem_optab[$A] = CODE_FOR_$(setmem$a$)",
177 "sync_add_optab[$A] = CODE_FOR_$(sync_add$I$a$)",
178 "sync_sub_optab[$A] = CODE_FOR_$(sync_sub$I$a$)",
179 "sync_ior_optab[$A] = CODE_FOR_$(sync_ior$I$a$)",
180 "sync_and_optab[$A] = CODE_FOR_$(sync_and$I$a$)",
181 "sync_xor_optab[$A] = CODE_FOR_$(sync_xor$I$a$)",
182 "sync_nand_optab[$A] = CODE_FOR_$(sync_nand$I$a$)",
183 "sync_old_add_optab[$A] = CODE_FOR_$(sync_old_add$I$a$)",
184 "sync_old_sub_optab[$A] = CODE_FOR_$(sync_old_sub$I$a$)",
185 "sync_old_ior_optab[$A] = CODE_FOR_$(sync_old_ior$I$a$)",
186 "sync_old_and_optab[$A] = CODE_FOR_$(sync_old_and$I$a$)",
187 "sync_old_xor_optab[$A] = CODE_FOR_$(sync_old_xor$I$a$)",
188 "sync_old_nand_optab[$A] = CODE_FOR_$(sync_old_nand$I$a$)",
189 "sync_new_add_optab[$A] = CODE_FOR_$(sync_new_add$I$a$)",
190 "sync_new_sub_optab[$A] = CODE_FOR_$(sync_new_sub$I$a$)",
191 "sync_new_ior_optab[$A] = CODE_FOR_$(sync_new_ior$I$a$)",
192 "sync_new_and_optab[$A] = CODE_FOR_$(sync_new_and$I$a$)",
193 "sync_new_xor_optab[$A] = CODE_FOR_$(sync_new_xor$I$a$)",
194 "sync_new_nand_optab[$A] = CODE_FOR_$(sync_new_nand$I$a$)",
195 "sync_compare_and_swap[$A] = CODE_FOR_$(sync_compare_and_swap$I$a$)",
196 "sync_compare_and_swap_cc[$A] = CODE_FOR_$(sync_compare_and_swap_cc$I$a$)",
197 "sync_lock_test_and_set[$A] = CODE_FOR_$(sync_lock_test_and_set$I$a$)",
198 "sync_lock_release[$A] = CODE_FOR_$(sync_lock_release$I$a$)",
199 "vec_set_optab->handlers[$A].insn_code = CODE_FOR_$(vec_set$a$)",
200 "vec_extract_optab->handlers[$A].insn_code = CODE_FOR_$(vec_extract$a$)",
201 "vec_init_optab->handlers[$A].insn_code = CODE_FOR_$(vec_init$a$)",
202 "vec_shl_optab->handlers[$A].insn_code = CODE_FOR_$(vec_shl_$a$)",
203 "vec_shr_optab->handlers[$A].insn_code = CODE_FOR_$(vec_shr_$a$)",
204 "vec_realign_load_optab->handlers[$A].insn_code = CODE_FOR_$(vec_realign_load_$a$)",
205 "vcond_gen_code[$A] = CODE_FOR_$(vcond$a$)",
206 "vcondu_gen_code[$A] = CODE_FOR_$(vcondu$a$)",
207 "ssum_widen_optab->handlers[$A].insn_code = CODE_FOR_$(widen_ssum$I$a3$)",
208 "usum_widen_optab->handlers[$A].insn_code = CODE_FOR_$(widen_usum$I$a3$)",
209 "udot_prod_optab->handlers[$A].insn_code = CODE_FOR_$(udot_prod$I$a$)",
210 "sdot_prod_optab->handlers[$A].insn_code = CODE_FOR_$(sdot_prod$I$a$)",
211 "reduc_smax_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_smax_$a$)",
212 "reduc_umax_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_umax_$a$)",
213 "reduc_smin_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_smin_$a$)",
214 "reduc_umin_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_umin_$a$)",
215 "reduc_splus_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_splus_$a$)" ,
216 "reduc_uplus_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_uplus_$a$)"
219 static void gen_insn (rtx);
224 const char *name = XSTR (insn, 0);
225 int m1 = 0, m2 = 0, op = 0;
228 const char *np, *pp, *p, *q;
230 /* Don't mention instructions whose names are the null string.
231 They are in the machine description just to be recognized. */
235 /* See if NAME matches one of the patterns we have for the optabs we know
238 for (pindex = 0; pindex < ARRAY_SIZE (optabs); pindex++)
240 int force_float = 0, force_int = 0, force_partial_int = 0;
241 int force_consec = 0;
244 for (pp = optabs[pindex]; pp[0] != '$' || pp[1] != '('; pp++)
247 for (pp += 2, np = name; matches && ! (pp[0] == '$' && pp[1] == ')');
265 force_partial_int = 1;
273 for (op = 0; op < NUM_RTX_CODE; op++)
275 for (p = GET_RTX_NAME(op), q = np; *p; p++, q++)
279 /* We have to be concerned about matching "gt" and
280 missing "gtu", e.g., so verify we have reached the
281 end of thing we are to match. */
282 if (*p == 0 && *q == 0
283 && (GET_RTX_CLASS (op) == RTX_COMPARE
284 || GET_RTX_CLASS (op) == RTX_COMM_COMPARE))
288 if (op == NUM_RTX_CODE)
291 np += strlen (GET_RTX_NAME(op));
295 /* This loop will stop at the first prefix match, so
296 look through the modes in reverse order, in case
297 there are extra CC modes and CC is a prefix of the
298 CC modes (as it should be). */
299 for (i = (MAX_MACHINE_MODE) - 1; i >= 0; i--)
301 for (p = GET_MODE_NAME(i), q = np; *p; p++, q++)
302 if (TOLOWER (*p) != *q)
306 && (! force_int || mode_class[i] == MODE_INT
307 || mode_class[i] == MODE_VECTOR_INT)
308 && (! force_partial_int
309 || mode_class[i] == MODE_INT
310 || mode_class[i] == MODE_PARTIAL_INT
311 || mode_class[i] == MODE_VECTOR_INT)
313 || mode_class[i] == MODE_FLOAT
314 || mode_class[i] == MODE_DECIMAL_FLOAT
315 || mode_class[i] == MODE_COMPLEX_FLOAT
316 || mode_class[i] == MODE_VECTOR_FLOAT))
323 m1 = i, np += strlen (GET_MODE_NAME(i));
325 m2 = i, np += strlen (GET_MODE_NAME(i));
327 force_int = force_partial_int = force_float = 0;
335 if (matches && pp[0] == '$' && pp[1] == ')'
337 && (! force_consec || (int) GET_MODE_WIDER_MODE(m1) == m2))
341 if (pindex == ARRAY_SIZE (optabs))
344 /* We found a match. If this pattern is only conditionally present,
345 write out the "if" and two extra blanks. */
347 if (*XSTR (insn, 2) != 0)
348 printf (" if (HAVE_%s)\n ", name);
352 /* Now write out the initialization, making all required substitutions. */
353 for (pp = optabs[pindex]; *pp; pp++)
361 case 'I': case 'F': case 'N':
364 if (SCALAR_FLOAT_MODE_P (m1))
368 for (np = GET_MODE_NAME(m1); *np; np++)
369 putchar (TOLOWER (*np));
372 for (np = GET_MODE_NAME(m2); *np; np++)
373 putchar (TOLOWER (*np));
376 printf ("%smode", GET_MODE_NAME(m1));
379 printf ("%smode", GET_MODE_NAME(m2));
382 printf ("%s", GET_RTX_NAME(op));
385 for (np = GET_RTX_NAME(op); *np; np++)
386 putchar (TOUPPER (*np));
394 extern int main (int, char **);
397 main (int argc, char **argv)
401 progname = "genopinit";
403 if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
404 return (FATAL_EXIT_CODE);
406 printf ("/* Generated automatically by the program `genopinit'\n\
407 from the machine description file `md'. */\n\n");
409 printf ("#include \"config.h\"\n");
410 printf ("#include \"system.h\"\n");
411 printf ("#include \"coretypes.h\"\n");
412 printf ("#include \"tm.h\"\n");
413 printf ("#include \"rtl.h\"\n");
414 printf ("#include \"flags.h\"\n");
415 printf ("#include \"insn-config.h\"\n");
416 printf ("#include \"recog.h\"\n");
417 printf ("#include \"expr.h\"\n");
418 printf ("#include \"optabs.h\"\n");
419 printf ("#include \"reload.h\"\n\n");
421 printf ("void\ninit_all_optabs (void)\n{\n");
424 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
428 /* Read the machine description. */
432 int line_no, insn_code_number = 0;
434 desc = read_md_rtx (&line_no, &insn_code_number);
438 if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
444 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
445 /* This flag says the same insns that convert to a signed fixnum\n\
446 also convert validly to an unsigned one. */\n\
447 for (i = 0; i < NUM_MACHINE_MODES; i++)\n\
448 for (j = 0; j < NUM_MACHINE_MODES; j++)\n\
449 ufixtrunc_optab->handlers[i][j].insn_code\n\
450 = sfixtrunc_optab->handlers[i][j].insn_code;\n\
455 return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);