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 "log_optab->handlers[$A].insn_code = CODE_FOR_$(log$a2$)",
129 "log10_optab->handlers[$A].insn_code = CODE_FOR_$(log10$a2$)",
130 "log2_optab->handlers[$A].insn_code = CODE_FOR_$(log2$a2$)",
131 "tan_optab->handlers[$A].insn_code = CODE_FOR_$(tan$a2$)",
132 "atan_optab->handlers[$A].insn_code = CODE_FOR_$(atan$a2$)",
133 "strlen_optab->handlers[$A].insn_code = CODE_FOR_$(strlen$a$)",
134 "one_cmpl_optab->handlers[$A].insn_code = CODE_FOR_$(one_cmpl$a2$)",
135 "ffs_optab->handlers[$A].insn_code = CODE_FOR_$(ffs$a2$)",
136 "clz_optab->handlers[$A].insn_code = CODE_FOR_$(clz$a2$)",
137 "ctz_optab->handlers[$A].insn_code = CODE_FOR_$(ctz$a2$)",
138 "popcount_optab->handlers[$A].insn_code = CODE_FOR_$(popcount$a2$)",
139 "parity_optab->handlers[$A].insn_code = CODE_FOR_$(parity$a2$)",
140 "mov_optab->handlers[$A].insn_code = CODE_FOR_$(mov$a$)",
141 "movstrict_optab->handlers[$A].insn_code = CODE_FOR_$(movstrict$a$)",
142 "cmp_optab->handlers[$A].insn_code = CODE_FOR_$(cmp$a$)",
143 "tst_optab->handlers[$A].insn_code = CODE_FOR_$(tst$a$)",
144 "addcc_optab->handlers[$A].insn_code = CODE_FOR_$(add$acc$)",
145 "bcc_gen_fctn[$C] = gen_$(b$c$)",
146 "setcc_gen_code[$C] = CODE_FOR_$(s$c$)",
147 "movcc_gen_code[$A] = CODE_FOR_$(mov$acc$)",
148 "cbranch_optab->handlers[$A].insn_code = CODE_FOR_$(cbranch$a4$)",
149 "cmov_optab->handlers[$A].insn_code = CODE_FOR_$(cmov$a6$)",
150 "cstore_optab->handlers[$A].insn_code = CODE_FOR_$(cstore$a4$)",
151 "push_optab->handlers[$A].insn_code = CODE_FOR_$(push$a1$)",
152 "reload_in_optab[$A] = CODE_FOR_$(reload_in$a$)",
153 "reload_out_optab[$A] = CODE_FOR_$(reload_out$a$)",
154 "movstr_optab[$A] = CODE_FOR_$(movstr$a$)",
155 "clrstr_optab[$A] = CODE_FOR_$(clrstr$a$)",
156 "cmpstr_optab[$A] = CODE_FOR_$(cmpstr$a$)",
157 "cmpmem_optab[$A] = CODE_FOR_$(cmpmem$a$)",
158 "vec_set_optab->handlers[$A].insn_code = CODE_FOR_$(vec_set$a$)",
159 "vec_extract_optab->handlers[$A].insn_code = CODE_FOR_$(vec_extract$a$)",
160 "vec_init_optab->handlers[$A].insn_code = CODE_FOR_$(vec_init$a$)" };
162 static void gen_insn (rtx);
167 const char *name = XSTR (insn, 0);
168 int m1 = 0, m2 = 0, op = 0;
171 const char *np, *pp, *p, *q;
173 /* Don't mention instructions whose names are the null string.
174 They are in the machine description just to be recognized. */
178 /* See if NAME matches one of the patterns we have for the optabs we know
181 for (pindex = 0; pindex < ARRAY_SIZE (optabs); pindex++)
183 int force_float = 0, force_int = 0, force_partial_int = 0;
184 int force_consec = 0;
187 for (pp = optabs[pindex]; pp[0] != '$' || pp[1] != '('; pp++)
190 for (pp += 2, np = name; matches && ! (pp[0] == '$' && pp[1] == ')');
208 force_partial_int = 1;
216 for (op = 0; op < NUM_RTX_CODE; op++)
218 for (p = GET_RTX_NAME(op), q = np; *p; p++, q++)
222 /* We have to be concerned about matching "gt" and
223 missing "gtu", e.g., so verify we have reached the
224 end of thing we are to match. */
225 if (*p == 0 && *q == 0 && GET_RTX_CLASS(op) == '<')
229 if (op == NUM_RTX_CODE)
232 np += strlen (GET_RTX_NAME(op));
236 /* This loop will stop at the first prefix match, so
237 look through the modes in reverse order, in case
238 there are extra CC modes and CC is a prefix of the
239 CC modes (as it should be). */
240 for (i = (MAX_MACHINE_MODE) - 1; i >= 0; i--)
242 for (p = GET_MODE_NAME(i), q = np; *p; p++, q++)
243 if (TOLOWER (*p) != *q)
247 && (! force_int || mode_class[i] == MODE_INT
248 || mode_class[i] == MODE_VECTOR_INT)
249 && (! force_partial_int
250 || mode_class[i] == MODE_INT
251 || mode_class[i] == MODE_PARTIAL_INT
252 || mode_class[i] == MODE_VECTOR_INT)
253 && (! force_float || mode_class[i] == MODE_FLOAT
254 || mode_class[i] == MODE_VECTOR_FLOAT))
261 m1 = i, np += strlen (GET_MODE_NAME(i));
263 m2 = i, np += strlen (GET_MODE_NAME(i));
265 force_int = force_partial_int = force_float = 0;
273 if (matches && pp[0] == '$' && pp[1] == ')'
275 && (! force_consec || (int) GET_MODE_WIDER_MODE(m1) == m2))
279 if (pindex == ARRAY_SIZE (optabs))
282 /* We found a match. If this pattern is only conditionally present,
283 write out the "if" and two extra blanks. */
285 if (*XSTR (insn, 2) != 0)
286 printf (" if (HAVE_%s)\n ", name);
290 /* Now write out the initialization, making all required substitutions. */
291 for (pp = optabs[pindex]; *pp; pp++)
299 case 'I': case 'F': case 'N':
302 if (GET_MODE_CLASS (m1) == MODE_FLOAT)
306 for (np = GET_MODE_NAME(m1); *np; np++)
307 putchar (TOLOWER (*np));
310 for (np = GET_MODE_NAME(m2); *np; np++)
311 putchar (TOLOWER (*np));
314 printf ("%smode", GET_MODE_NAME(m1));
317 printf ("%smode", GET_MODE_NAME(m2));
320 printf ("%s", GET_RTX_NAME(op));
323 for (np = GET_RTX_NAME(op); *np; np++)
324 putchar (TOUPPER (*np));
332 extern int main (int, char **);
335 main (int argc, char **argv)
339 progname = "genopinit";
342 fatal ("no input file name");
344 if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
345 return (FATAL_EXIT_CODE);
347 printf ("/* Generated automatically by the program `genopinit'\n\
348 from the machine description file `md'. */\n\n");
350 printf ("#include \"config.h\"\n");
351 printf ("#include \"system.h\"\n");
352 printf ("#include \"coretypes.h\"\n");
353 printf ("#include \"tm.h\"\n");
354 printf ("#include \"rtl.h\"\n");
355 printf ("#include \"flags.h\"\n");
356 printf ("#include \"insn-config.h\"\n");
357 printf ("#include \"recog.h\"\n");
358 printf ("#include \"expr.h\"\n");
359 printf ("#include \"optabs.h\"\n");
360 printf ("#include \"reload.h\"\n\n");
362 printf ("void\ninit_all_optabs (void)\n{\n");
365 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
369 /* Read the machine description. */
373 int line_no, insn_code_number = 0;
375 desc = read_md_rtx (&line_no, &insn_code_number);
379 if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
385 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
386 /* This flag says the same insns that convert to a signed fixnum\n\
387 also convert validly to an unsigned one. */\n\
388 for (i = 0; i < NUM_MACHINE_MODES; i++)\n\
389 for (j = 0; j < NUM_MACHINE_MODES; j++)\n\
390 ufixtrunc_optab->handlers[i][j].insn_code\n\
391 = sfixtrunc_optab->handlers[i][j].insn_code;\n\
396 return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
399 /* Define this so we can link with print-rtl.o to get debug_rtx function. */
401 get_insn_name (int code ATTRIBUTE_UNUSED)