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$)",
174 "sync_add_optab[$A] = CODE_FOR_$(sync_add$I$a$)",
175 "sync_sub_optab[$A] = CODE_FOR_$(sync_sub$I$a$)",
176 "sync_ior_optab[$A] = CODE_FOR_$(sync_ior$I$a$)",
177 "sync_and_optab[$A] = CODE_FOR_$(sync_and$I$a$)",
178 "sync_xor_optab[$A] = CODE_FOR_$(sync_xor$I$a$)",
179 "sync_nand_optab[$A] = CODE_FOR_$(sync_nand$I$a$)",
180 "sync_old_add_optab[$A] = CODE_FOR_$(sync_old_add$I$a$)",
181 "sync_old_sub_optab[$A] = CODE_FOR_$(sync_old_sub$I$a$)",
182 "sync_old_ior_optab[$A] = CODE_FOR_$(sync_old_ior$I$a$)",
183 "sync_old_and_optab[$A] = CODE_FOR_$(sync_old_and$I$a$)",
184 "sync_old_xor_optab[$A] = CODE_FOR_$(sync_old_xor$I$a$)",
185 "sync_old_nand_optab[$A] = CODE_FOR_$(sync_old_nand$I$a$)",
186 "sync_new_add_optab[$A] = CODE_FOR_$(sync_new_add$I$a$)",
187 "sync_new_sub_optab[$A] = CODE_FOR_$(sync_new_sub$I$a$)",
188 "sync_new_ior_optab[$A] = CODE_FOR_$(sync_new_ior$I$a$)",
189 "sync_new_and_optab[$A] = CODE_FOR_$(sync_new_and$I$a$)",
190 "sync_new_xor_optab[$A] = CODE_FOR_$(sync_new_xor$I$a$)",
191 "sync_new_nand_optab[$A] = CODE_FOR_$(sync_new_nand$I$a$)",
192 "sync_compare_and_swap[$A] = CODE_FOR_$(sync_compare_and_swap$I$a$)",
193 "sync_compare_and_swap_cc[$A] = CODE_FOR_$(sync_compare_and_swap_cc$I$a$)",
194 "sync_lock_test_and_set[$A] = CODE_FOR_$(sync_lock_test_and_set$I$a$)",
195 "sync_lock_release[$A] = CODE_FOR_$(sync_lock_release$I$a$)",
196 "vec_set_optab->handlers[$A].insn_code = CODE_FOR_$(vec_set$a$)",
197 "vec_extract_optab->handlers[$A].insn_code = CODE_FOR_$(vec_extract$a$)",
198 "vec_init_optab->handlers[$A].insn_code = CODE_FOR_$(vec_init$a$)",
199 "vec_realign_load_optab->handlers[$A].insn_code = CODE_FOR_$(vec_realign_load_$a$)",
200 "vcond_gen_code[$A] = CODE_FOR_$(vcond$a$)",
201 "vcondu_gen_code[$A] = CODE_FOR_$(vcondu$a$)",
202 "reduc_smax_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_smax_$a$)",
203 "reduc_umax_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_umax_$a$)",
204 "reduc_smin_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_smin_$a$)",
205 "reduc_umin_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_umin_$a$)",
206 "reduc_plus_optab->handlers[$A].insn_code = CODE_FOR_$(reduc_plus_$a$)"
209 static void gen_insn (rtx);
214 const char *name = XSTR (insn, 0);
215 int m1 = 0, m2 = 0, op = 0;
218 const char *np, *pp, *p, *q;
220 /* Don't mention instructions whose names are the null string.
221 They are in the machine description just to be recognized. */
225 /* See if NAME matches one of the patterns we have for the optabs we know
228 for (pindex = 0; pindex < ARRAY_SIZE (optabs); pindex++)
230 int force_float = 0, force_int = 0, force_partial_int = 0;
231 int force_consec = 0;
234 for (pp = optabs[pindex]; pp[0] != '$' || pp[1] != '('; pp++)
237 for (pp += 2, np = name; matches && ! (pp[0] == '$' && pp[1] == ')');
255 force_partial_int = 1;
263 for (op = 0; op < NUM_RTX_CODE; op++)
265 for (p = GET_RTX_NAME(op), q = np; *p; p++, q++)
269 /* We have to be concerned about matching "gt" and
270 missing "gtu", e.g., so verify we have reached the
271 end of thing we are to match. */
272 if (*p == 0 && *q == 0
273 && (GET_RTX_CLASS (op) == RTX_COMPARE
274 || GET_RTX_CLASS (op) == RTX_COMM_COMPARE))
278 if (op == NUM_RTX_CODE)
281 np += strlen (GET_RTX_NAME(op));
285 /* This loop will stop at the first prefix match, so
286 look through the modes in reverse order, in case
287 there are extra CC modes and CC is a prefix of the
288 CC modes (as it should be). */
289 for (i = (MAX_MACHINE_MODE) - 1; i >= 0; i--)
291 for (p = GET_MODE_NAME(i), q = np; *p; p++, q++)
292 if (TOLOWER (*p) != *q)
296 && (! force_int || mode_class[i] == MODE_INT
297 || mode_class[i] == MODE_VECTOR_INT)
298 && (! force_partial_int
299 || mode_class[i] == MODE_INT
300 || mode_class[i] == MODE_PARTIAL_INT
301 || mode_class[i] == MODE_VECTOR_INT)
302 && (! force_float || mode_class[i] == MODE_FLOAT
303 || mode_class[i] == MODE_COMPLEX_FLOAT
304 || mode_class[i] == MODE_VECTOR_FLOAT))
311 m1 = i, np += strlen (GET_MODE_NAME(i));
313 m2 = i, np += strlen (GET_MODE_NAME(i));
315 force_int = force_partial_int = force_float = 0;
323 if (matches && pp[0] == '$' && pp[1] == ')'
325 && (! force_consec || (int) GET_MODE_WIDER_MODE(m1) == m2))
329 if (pindex == ARRAY_SIZE (optabs))
332 /* We found a match. If this pattern is only conditionally present,
333 write out the "if" and two extra blanks. */
335 if (*XSTR (insn, 2) != 0)
336 printf (" if (HAVE_%s)\n ", name);
340 /* Now write out the initialization, making all required substitutions. */
341 for (pp = optabs[pindex]; *pp; pp++)
349 case 'I': case 'F': case 'N':
352 if (GET_MODE_CLASS (m1) == MODE_FLOAT)
356 for (np = GET_MODE_NAME(m1); *np; np++)
357 putchar (TOLOWER (*np));
360 for (np = GET_MODE_NAME(m2); *np; np++)
361 putchar (TOLOWER (*np));
364 printf ("%smode", GET_MODE_NAME(m1));
367 printf ("%smode", GET_MODE_NAME(m2));
370 printf ("%s", GET_RTX_NAME(op));
373 for (np = GET_RTX_NAME(op); *np; np++)
374 putchar (TOUPPER (*np));
382 extern int main (int, char **);
385 main (int argc, char **argv)
389 progname = "genopinit";
391 if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
392 return (FATAL_EXIT_CODE);
394 printf ("/* Generated automatically by the program `genopinit'\n\
395 from the machine description file `md'. */\n\n");
397 printf ("#include \"config.h\"\n");
398 printf ("#include \"system.h\"\n");
399 printf ("#include \"coretypes.h\"\n");
400 printf ("#include \"tm.h\"\n");
401 printf ("#include \"rtl.h\"\n");
402 printf ("#include \"flags.h\"\n");
403 printf ("#include \"insn-config.h\"\n");
404 printf ("#include \"recog.h\"\n");
405 printf ("#include \"expr.h\"\n");
406 printf ("#include \"optabs.h\"\n");
407 printf ("#include \"reload.h\"\n\n");
409 printf ("void\ninit_all_optabs (void)\n{\n");
412 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
416 /* Read the machine description. */
420 int line_no, insn_code_number = 0;
422 desc = read_md_rtx (&line_no, &insn_code_number);
426 if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
432 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
433 /* This flag says the same insns that convert to a signed fixnum\n\
434 also convert validly to an unsigned one. */\n\
435 for (i = 0; i < NUM_MACHINE_MODES; i++)\n\
436 for (j = 0; j < NUM_MACHINE_MODES; j++)\n\
437 ufixtrunc_optab->handlers[i][j].insn_code\n\
438 = sfixtrunc_optab->handlers[i][j].insn_code;\n\
443 return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
446 /* Define this so we can link with print-rtl.o to get debug_rtx function. */
448 get_insn_name (int code ATTRIBUTE_UNUSED)