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$)",
94 "ftrunc_optab->handlers[$A].insn_code = CODE_FOR_$(ftrunc$F$a2$)",
95 "and_optab->handlers[$A].insn_code = CODE_FOR_$(and$a3$)",
96 "ior_optab->handlers[$A].insn_code = CODE_FOR_$(ior$a3$)",
97 "xor_optab->handlers[$A].insn_code = CODE_FOR_$(xor$a3$)",
98 "ashl_optab->handlers[$A].insn_code = CODE_FOR_$(ashl$a3$)",
99 "ashr_optab->handlers[$A].insn_code = CODE_FOR_$(ashr$a3$)",
100 "lshr_optab->handlers[$A].insn_code = CODE_FOR_$(lshr$a3$)",
101 "rotl_optab->handlers[$A].insn_code = CODE_FOR_$(rotl$a3$)",
102 "rotr_optab->handlers[$A].insn_code = CODE_FOR_$(rotr$a3$)",
103 "smin_optab->handlers[$A].insn_code = CODE_FOR_$(smin$I$a3$)",
104 "smin_optab->handlers[$A].insn_code = CODE_FOR_$(min$F$a3$)",
105 "smax_optab->handlers[$A].insn_code = CODE_FOR_$(smax$I$a3$)",
106 "smax_optab->handlers[$A].insn_code = CODE_FOR_$(max$F$a3$)",
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 "sqrt_optab->handlers[$A].insn_code = CODE_FOR_$(sqrt$a2$)",
120 "floor_optab->handlers[$A].insn_code = CODE_FOR_$(floor$a2$)",
121 "ceil_optab->handlers[$A].insn_code = CODE_FOR_$(ceil$a2$)",
122 "round_optab->handlers[$A].insn_code = CODE_FOR_$(round$a2$)",
123 "trunc_optab->handlers[$A].insn_code = CODE_FOR_$(trunc$a2$)",
124 "nearbyint_optab->handlers[$A].insn_code = CODE_FOR_$(nearbyint$a2$)",
125 "sin_optab->handlers[$A].insn_code = CODE_FOR_$(sin$a2$)",
126 "cos_optab->handlers[$A].insn_code = CODE_FOR_$(cos$a2$)",
127 "exp_optab->handlers[$A].insn_code = CODE_FOR_$(exp$a2$)",
128 "exp10_optab->handlers[$A].insn_code = CODE_FOR_$(exp10$a2$)",
129 "exp2_optab->handlers[$A].insn_code = CODE_FOR_$(exp2$a2$)",
130 "log_optab->handlers[$A].insn_code = CODE_FOR_$(log$a2$)",
131 "log10_optab->handlers[$A].insn_code = CODE_FOR_$(log10$a2$)",
132 "log2_optab->handlers[$A].insn_code = CODE_FOR_$(log2$a2$)",
133 "tan_optab->handlers[$A].insn_code = CODE_FOR_$(tan$a2$)",
134 "atan_optab->handlers[$A].insn_code = CODE_FOR_$(atan$a2$)",
135 "strlen_optab->handlers[$A].insn_code = CODE_FOR_$(strlen$a$)",
136 "one_cmpl_optab->handlers[$A].insn_code = CODE_FOR_$(one_cmpl$a2$)",
137 "ffs_optab->handlers[$A].insn_code = CODE_FOR_$(ffs$a2$)",
138 "clz_optab->handlers[$A].insn_code = CODE_FOR_$(clz$a2$)",
139 "ctz_optab->handlers[$A].insn_code = CODE_FOR_$(ctz$a2$)",
140 "popcount_optab->handlers[$A].insn_code = CODE_FOR_$(popcount$a2$)",
141 "parity_optab->handlers[$A].insn_code = CODE_FOR_$(parity$a2$)",
142 "mov_optab->handlers[$A].insn_code = CODE_FOR_$(mov$a$)",
143 "movstrict_optab->handlers[$A].insn_code = CODE_FOR_$(movstrict$a$)",
144 "cmp_optab->handlers[$A].insn_code = CODE_FOR_$(cmp$a$)",
145 "tst_optab->handlers[$A].insn_code = CODE_FOR_$(tst$a$)",
146 "addcc_optab->handlers[$A].insn_code = CODE_FOR_$(add$acc$)",
147 "bcc_gen_fctn[$C] = gen_$(b$c$)",
148 "setcc_gen_code[$C] = CODE_FOR_$(s$c$)",
149 "movcc_gen_code[$A] = CODE_FOR_$(mov$acc$)",
150 "cbranch_optab->handlers[$A].insn_code = CODE_FOR_$(cbranch$a4$)",
151 "cmov_optab->handlers[$A].insn_code = CODE_FOR_$(cmov$a6$)",
152 "cstore_optab->handlers[$A].insn_code = CODE_FOR_$(cstore$a4$)",
153 "push_optab->handlers[$A].insn_code = CODE_FOR_$(push$a1$)",
154 "reload_in_optab[$A] = CODE_FOR_$(reload_in$a$)",
155 "reload_out_optab[$A] = CODE_FOR_$(reload_out$a$)",
156 "movstr_optab[$A] = CODE_FOR_$(movstr$a$)",
157 "clrstr_optab[$A] = CODE_FOR_$(clrstr$a$)",
158 "cmpstr_optab[$A] = CODE_FOR_$(cmpstr$a$)",
159 "cmpmem_optab[$A] = CODE_FOR_$(cmpmem$a$)",
160 "vec_set_optab->handlers[$A].insn_code = CODE_FOR_$(vec_set$a$)",
161 "vec_extract_optab->handlers[$A].insn_code = CODE_FOR_$(vec_extract$a$)",
162 "vec_init_optab->handlers[$A].insn_code = CODE_FOR_$(vec_init$a$)" };
164 static void gen_insn (rtx);
169 const char *name = XSTR (insn, 0);
170 int m1 = 0, m2 = 0, op = 0;
173 const char *np, *pp, *p, *q;
175 /* Don't mention instructions whose names are the null string.
176 They are in the machine description just to be recognized. */
180 /* See if NAME matches one of the patterns we have for the optabs we know
183 for (pindex = 0; pindex < ARRAY_SIZE (optabs); pindex++)
185 int force_float = 0, force_int = 0, force_partial_int = 0;
186 int force_consec = 0;
189 for (pp = optabs[pindex]; pp[0] != '$' || pp[1] != '('; pp++)
192 for (pp += 2, np = name; matches && ! (pp[0] == '$' && pp[1] == ')');
210 force_partial_int = 1;
218 for (op = 0; op < NUM_RTX_CODE; op++)
220 for (p = GET_RTX_NAME(op), q = np; *p; p++, q++)
224 /* We have to be concerned about matching "gt" and
225 missing "gtu", e.g., so verify we have reached the
226 end of thing we are to match. */
227 if (*p == 0 && *q == 0
228 && (GET_RTX_CLASS (op) == RTX_COMPARE
229 || GET_RTX_CLASS (op) == RTX_COMM_COMPARE))
233 if (op == NUM_RTX_CODE)
236 np += strlen (GET_RTX_NAME(op));
240 /* This loop will stop at the first prefix match, so
241 look through the modes in reverse order, in case
242 there are extra CC modes and CC is a prefix of the
243 CC modes (as it should be). */
244 for (i = (MAX_MACHINE_MODE) - 1; i >= 0; i--)
246 for (p = GET_MODE_NAME(i), q = np; *p; p++, q++)
247 if (TOLOWER (*p) != *q)
251 && (! force_int || mode_class[i] == MODE_INT
252 || mode_class[i] == MODE_VECTOR_INT)
253 && (! force_partial_int
254 || mode_class[i] == MODE_INT
255 || mode_class[i] == MODE_PARTIAL_INT
256 || mode_class[i] == MODE_VECTOR_INT)
257 && (! force_float || mode_class[i] == MODE_FLOAT
258 || mode_class[i] == MODE_VECTOR_FLOAT))
265 m1 = i, np += strlen (GET_MODE_NAME(i));
267 m2 = i, np += strlen (GET_MODE_NAME(i));
269 force_int = force_partial_int = force_float = 0;
277 if (matches && pp[0] == '$' && pp[1] == ')'
279 && (! force_consec || (int) GET_MODE_WIDER_MODE(m1) == m2))
283 if (pindex == ARRAY_SIZE (optabs))
286 /* We found a match. If this pattern is only conditionally present,
287 write out the "if" and two extra blanks. */
289 if (*XSTR (insn, 2) != 0)
290 printf (" if (HAVE_%s)\n ", name);
294 /* Now write out the initialization, making all required substitutions. */
295 for (pp = optabs[pindex]; *pp; pp++)
303 case 'I': case 'F': case 'N':
306 if (GET_MODE_CLASS (m1) == MODE_FLOAT)
310 for (np = GET_MODE_NAME(m1); *np; np++)
311 putchar (TOLOWER (*np));
314 for (np = GET_MODE_NAME(m2); *np; np++)
315 putchar (TOLOWER (*np));
318 printf ("%smode", GET_MODE_NAME(m1));
321 printf ("%smode", GET_MODE_NAME(m2));
324 printf ("%s", GET_RTX_NAME(op));
327 for (np = GET_RTX_NAME(op); *np; np++)
328 putchar (TOUPPER (*np));
336 extern int main (int, char **);
339 main (int argc, char **argv)
343 progname = "genopinit";
346 fatal ("no input file name");
348 if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
349 return (FATAL_EXIT_CODE);
351 printf ("/* Generated automatically by the program `genopinit'\n\
352 from the machine description file `md'. */\n\n");
354 printf ("#include \"config.h\"\n");
355 printf ("#include \"system.h\"\n");
356 printf ("#include \"coretypes.h\"\n");
357 printf ("#include \"tm.h\"\n");
358 printf ("#include \"rtl.h\"\n");
359 printf ("#include \"flags.h\"\n");
360 printf ("#include \"insn-config.h\"\n");
361 printf ("#include \"recog.h\"\n");
362 printf ("#include \"expr.h\"\n");
363 printf ("#include \"optabs.h\"\n");
364 printf ("#include \"reload.h\"\n\n");
366 printf ("void\ninit_all_optabs (void)\n{\n");
369 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
373 /* Read the machine description. */
377 int line_no, insn_code_number = 0;
379 desc = read_md_rtx (&line_no, &insn_code_number);
383 if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
389 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
390 /* This flag says the same insns that convert to a signed fixnum\n\
391 also convert validly to an unsigned one. */\n\
392 for (i = 0; i < NUM_MACHINE_MODES; i++)\n\
393 for (j = 0; j < NUM_MACHINE_MODES; j++)\n\
394 ufixtrunc_optab->handlers[i][j].insn_code\n\
395 = sfixtrunc_optab->handlers[i][j].insn_code;\n\
400 return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
403 /* Define this so we can link with print-rtl.o to get debug_rtx function. */
405 get_insn_name (int code ATTRIBUTE_UNUSED)