1 /* Generate code to initialize optabs from machine description.
2 Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
3 2001, 2002, 2003 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 "log_optab->handlers[$A].insn_code = CODE_FOR_$(log$a2$)",
129 "tan_optab->handlers[$A].insn_code = CODE_FOR_$(tan$a2$)",
130 "atan_optab->handlers[$A].insn_code = CODE_FOR_$(atan$a2$)",
131 "strlen_optab->handlers[$A].insn_code = CODE_FOR_$(strlen$a$)",
132 "one_cmpl_optab->handlers[$A].insn_code = CODE_FOR_$(one_cmpl$a2$)",
133 "ffs_optab->handlers[$A].insn_code = CODE_FOR_$(ffs$a2$)",
134 "clz_optab->handlers[$A].insn_code = CODE_FOR_$(clz$a2$)",
135 "ctz_optab->handlers[$A].insn_code = CODE_FOR_$(ctz$a2$)",
136 "popcount_optab->handlers[$A].insn_code = CODE_FOR_$(popcount$a2$)",
137 "parity_optab->handlers[$A].insn_code = CODE_FOR_$(parity$a2$)",
138 "mov_optab->handlers[$A].insn_code = CODE_FOR_$(mov$a$)",
139 "movstrict_optab->handlers[$A].insn_code = CODE_FOR_$(movstrict$a$)",
140 "cmp_optab->handlers[$A].insn_code = CODE_FOR_$(cmp$a$)",
141 "tst_optab->handlers[$A].insn_code = CODE_FOR_$(tst$a$)",
142 "addcc_optab->handlers[$A].insn_code = CODE_FOR_$(add$acc$)",
143 "bcc_gen_fctn[$C] = gen_$(b$c$)",
144 "setcc_gen_code[$C] = CODE_FOR_$(s$c$)",
145 "movcc_gen_code[$A] = CODE_FOR_$(mov$acc$)",
146 "cbranch_optab->handlers[$A].insn_code = CODE_FOR_$(cbranch$a4$)",
147 "cmov_optab->handlers[$A].insn_code = CODE_FOR_$(cmov$a6$)",
148 "cstore_optab->handlers[$A].insn_code = CODE_FOR_$(cstore$a4$)",
149 "push_optab->handlers[$A].insn_code = CODE_FOR_$(push$a1$)",
150 "reload_in_optab[$A] = CODE_FOR_$(reload_in$a$)",
151 "reload_out_optab[$A] = CODE_FOR_$(reload_out$a$)",
152 "movstr_optab[$A] = CODE_FOR_$(movstr$a$)",
153 "clrstr_optab[$A] = CODE_FOR_$(clrstr$a$)" };
155 static void gen_insn (rtx);
160 const char *name = XSTR (insn, 0);
161 int m1 = 0, m2 = 0, op = 0;
164 const char *np, *pp, *p, *q;
166 /* Don't mention instructions whose names are the null string.
167 They are in the machine description just to be recognized. */
171 /* See if NAME matches one of the patterns we have for the optabs we know
174 for (pindex = 0; pindex < ARRAY_SIZE (optabs); pindex++)
176 int force_float = 0, force_int = 0, force_partial_int = 0;
177 int force_consec = 0;
180 for (pp = optabs[pindex]; pp[0] != '$' || pp[1] != '('; pp++)
183 for (pp += 2, np = name; matches && ! (pp[0] == '$' && pp[1] == ')');
201 force_partial_int = 1;
209 for (op = 0; op < NUM_RTX_CODE; op++)
211 for (p = GET_RTX_NAME(op), q = np; *p; p++, q++)
215 /* We have to be concerned about matching "gt" and
216 missing "gtu", e.g., so verify we have reached the
217 end of thing we are to match. */
218 if (*p == 0 && *q == 0 && GET_RTX_CLASS(op) == '<')
222 if (op == NUM_RTX_CODE)
225 np += strlen (GET_RTX_NAME(op));
229 /* This loop will stop at the first prefix match, so
230 look through the modes in reverse order, in case
231 EXTRA_CC_MODES was used and CC is a prefix of the
232 CC modes (as it should be). */
233 for (i = (MAX_MACHINE_MODE) - 1; i >= 0; i--)
235 for (p = GET_MODE_NAME(i), q = np; *p; p++, q++)
236 if (TOLOWER (*p) != *q)
240 && (! force_int || mode_class[i] == MODE_INT
241 || mode_class[i] == MODE_VECTOR_INT)
242 && (! force_partial_int
243 || mode_class[i] == MODE_INT
244 || mode_class[i] == MODE_PARTIAL_INT
245 || mode_class[i] == MODE_VECTOR_INT)
246 && (! force_float || mode_class[i] == MODE_FLOAT
247 || mode_class[i] == MODE_VECTOR_FLOAT))
254 m1 = i, np += strlen (GET_MODE_NAME(i));
256 m2 = i, np += strlen (GET_MODE_NAME(i));
258 force_int = force_partial_int = force_float = 0;
266 if (matches && pp[0] == '$' && pp[1] == ')'
268 && (! force_consec || (int) GET_MODE_WIDER_MODE(m1) == m2))
272 if (pindex == ARRAY_SIZE (optabs))
275 /* We found a match. If this pattern is only conditionally present,
276 write out the "if" and two extra blanks. */
278 if (*XSTR (insn, 2) != 0)
279 printf (" if (HAVE_%s)\n ", name);
283 /* Now write out the initialization, making all required substitutions. */
284 for (pp = optabs[pindex]; *pp; pp++)
292 case 'I': case 'F': case 'N':
295 if (GET_MODE_CLASS (m1) == MODE_FLOAT)
299 for (np = GET_MODE_NAME(m1); *np; np++)
300 putchar (TOLOWER (*np));
303 for (np = GET_MODE_NAME(m2); *np; np++)
304 putchar (TOLOWER (*np));
307 printf ("%smode", GET_MODE_NAME(m1));
310 printf ("%smode", GET_MODE_NAME(m2));
313 printf ("%s", GET_RTX_NAME(op));
316 for (np = GET_RTX_NAME(op); *np; np++)
317 putchar (TOUPPER (*np));
325 extern int main (int, char **);
328 main (int argc, char **argv)
332 progname = "genopinit";
335 fatal ("no input file name");
337 if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
338 return (FATAL_EXIT_CODE);
340 printf ("/* Generated automatically by the program `genopinit'\n\
341 from the machine description file `md'. */\n\n");
343 printf ("#include \"config.h\"\n");
344 printf ("#include \"system.h\"\n");
345 printf ("#include \"coretypes.h\"\n");
346 printf ("#include \"tm.h\"\n");
347 printf ("#include \"rtl.h\"\n");
348 printf ("#include \"flags.h\"\n");
349 printf ("#include \"insn-config.h\"\n");
350 printf ("#include \"recog.h\"\n");
351 printf ("#include \"expr.h\"\n");
352 printf ("#include \"optabs.h\"\n");
353 printf ("#include \"reload.h\"\n\n");
355 printf ("void\ninit_all_optabs (void)\n{\n");
357 /* Read the machine description. */
361 int line_no, insn_code_number = 0;
363 desc = read_md_rtx (&line_no, &insn_code_number);
367 if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
373 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
374 /* This flag says the same insns that convert to a signed fixnum\n\
375 also convert validly to an unsigned one. */\n\
376 for (i = 0; i < NUM_MACHINE_MODES; i++)\n\
377 for (j = 0; j < NUM_MACHINE_MODES; j++)\n\
378 ufixtrunc_optab->handlers[i][j].insn_code\n\
379 = sfixtrunc_optab->handlers[i][j].insn_code;\n\
384 return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
387 /* Define this so we can link with print-rtl.o to get debug_rtx function. */
389 get_insn_name (int code ATTRIBUTE_UNUSED)