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$)",
94 "fmod_optab->handlers[$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$I$a3$)",
106 "smin_optab->handlers[$A].insn_code = CODE_FOR_$(min$F$a3$)",
107 "smax_optab->handlers[$A].insn_code = CODE_FOR_$(smax$I$a3$)",
108 "smax_optab->handlers[$A].insn_code = CODE_FOR_$(max$F$a3$)",
109 "umin_optab->handlers[$A].insn_code = CODE_FOR_$(umin$I$a3$)",
110 "umax_optab->handlers[$A].insn_code = CODE_FOR_$(umax$I$a3$)",
111 "pow_optab->handlers[$A].insn_code = CODE_FOR_$(pow$a3$)",
112 "atan2_optab->handlers[$A].insn_code = CODE_FOR_$(atan2$a3$)",
113 "neg_optab->handlers[$A].insn_code = CODE_FOR_$(neg$P$a2$)",
114 "negv_optab->handlers[$A].insn_code =\n\
115 neg_optab->handlers[$A].insn_code = CODE_FOR_$(neg$F$a2$)",
116 "negv_optab->handlers[$A].insn_code = CODE_FOR_$(negv$I$a2$)",
117 "abs_optab->handlers[$A].insn_code = CODE_FOR_$(abs$P$a2$)",
118 "absv_optab->handlers[$A].insn_code =\n\
119 abs_optab->handlers[$A].insn_code = CODE_FOR_$(abs$F$a2$)",
120 "absv_optab->handlers[$A].insn_code = CODE_FOR_$(absv$I$a2$)",
121 "sqrt_optab->handlers[$A].insn_code = CODE_FOR_$(sqrt$a2$)",
122 "floor_optab->handlers[$A].insn_code = CODE_FOR_$(floor$a2$)",
123 "ceil_optab->handlers[$A].insn_code = CODE_FOR_$(ceil$a2$)",
124 "round_optab->handlers[$A].insn_code = CODE_FOR_$(round$a2$)",
125 "btrunc_optab->handlers[$A].insn_code = CODE_FOR_$(btrunc$a2$)",
126 "nearbyint_optab->handlers[$A].insn_code = CODE_FOR_$(nearbyint$a2$)",
127 "rint_optab->handlers[$A].insn_code = CODE_FOR_$(rint$a2$)",
128 "sincos_optab->handlers[$A].insn_code = CODE_FOR_$(sincos$a3$)",
129 "sin_optab->handlers[$A].insn_code = CODE_FOR_$(sin$a2$)",
130 "asin_optab->handlers[$A].insn_code = CODE_FOR_$(asin$a2$)",
131 "cos_optab->handlers[$A].insn_code = CODE_FOR_$(cos$a2$)",
132 "acos_optab->handlers[$A].insn_code = CODE_FOR_$(acos$a2$)",
133 "exp_optab->handlers[$A].insn_code = CODE_FOR_$(exp$a2$)",
134 "exp10_optab->handlers[$A].insn_code = CODE_FOR_$(exp10$a2$)",
135 "exp2_optab->handlers[$A].insn_code = CODE_FOR_$(exp2$a2$)",
136 "expm1_optab->handlers[$A].insn_code = CODE_FOR_$(expm1$a2$)",
137 "logb_optab->handlers[$A].insn_code = CODE_FOR_$(logb$a2$)",
138 "ilogb_optab->handlers[$A].insn_code = CODE_FOR_$(ilogb$a2$)",
139 "log_optab->handlers[$A].insn_code = CODE_FOR_$(log$a2$)",
140 "log10_optab->handlers[$A].insn_code = CODE_FOR_$(log10$a2$)",
141 "log2_optab->handlers[$A].insn_code = CODE_FOR_$(log2$a2$)",
142 "log1p_optab->handlers[$A].insn_code = CODE_FOR_$(log1p$a2$)",
143 "tan_optab->handlers[$A].insn_code = CODE_FOR_$(tan$a2$)",
144 "atan_optab->handlers[$A].insn_code = CODE_FOR_$(atan$a2$)",
145 "strlen_optab->handlers[$A].insn_code = CODE_FOR_$(strlen$a$)",
146 "one_cmpl_optab->handlers[$A].insn_code = CODE_FOR_$(one_cmpl$a2$)",
147 "ffs_optab->handlers[$A].insn_code = CODE_FOR_$(ffs$a2$)",
148 "clz_optab->handlers[$A].insn_code = CODE_FOR_$(clz$a2$)",
149 "ctz_optab->handlers[$A].insn_code = CODE_FOR_$(ctz$a2$)",
150 "popcount_optab->handlers[$A].insn_code = CODE_FOR_$(popcount$a2$)",
151 "parity_optab->handlers[$A].insn_code = CODE_FOR_$(parity$a2$)",
152 "mov_optab->handlers[$A].insn_code = CODE_FOR_$(mov$a$)",
153 "movstrict_optab->handlers[$A].insn_code = CODE_FOR_$(movstrict$a$)",
154 "cmp_optab->handlers[$A].insn_code = CODE_FOR_$(cmp$a$)",
155 "tst_optab->handlers[$A].insn_code = CODE_FOR_$(tst$a$)",
156 "addcc_optab->handlers[$A].insn_code = CODE_FOR_$(add$acc$)",
157 "bcc_gen_fctn[$C] = gen_$(b$c$)",
158 "setcc_gen_code[$C] = CODE_FOR_$(s$c$)",
159 "movcc_gen_code[$A] = CODE_FOR_$(mov$acc$)",
160 "cbranch_optab->handlers[$A].insn_code = CODE_FOR_$(cbranch$a4$)",
161 "cmov_optab->handlers[$A].insn_code = CODE_FOR_$(cmov$a6$)",
162 "cstore_optab->handlers[$A].insn_code = CODE_FOR_$(cstore$a4$)",
163 "push_optab->handlers[$A].insn_code = CODE_FOR_$(push$a1$)",
164 "reload_in_optab[$A] = CODE_FOR_$(reload_in$a$)",
165 "reload_out_optab[$A] = CODE_FOR_$(reload_out$a$)",
166 "movmem_optab[$A] = CODE_FOR_$(movmem$a$)",
167 "clrmem_optab[$A] = CODE_FOR_$(clrmem$a$)",
168 "cmpstr_optab[$A] = CODE_FOR_$(cmpstr$a$)",
169 "cmpmem_optab[$A] = CODE_FOR_$(cmpmem$a$)",
170 "vec_set_optab->handlers[$A].insn_code = CODE_FOR_$(vec_set$a$)",
171 "vec_extract_optab->handlers[$A].insn_code = CODE_FOR_$(vec_extract$a$)",
172 "vec_init_optab->handlers[$A].insn_code = CODE_FOR_$(vec_init$a$)",
173 "vec_realign_store_optab->handlers[$A].insn_code = CODE_FOR_$(vec_realign_store_$a$)",
174 "vec_realign_load_optab->handlers[$A].insn_code = CODE_FOR_$(vec_realign_load_$a$)" };
176 static void gen_insn (rtx
);
181 const char *name
= XSTR (insn
, 0);
182 int m1
= 0, m2
= 0, op
= 0;
185 const char *np
, *pp
, *p
, *q
;
187 /* Don't mention instructions whose names are the null string.
188 They are in the machine description just to be recognized. */
192 /* See if NAME matches one of the patterns we have for the optabs we know
195 for (pindex
= 0; pindex
< ARRAY_SIZE (optabs
); pindex
++)
197 int force_float
= 0, force_int
= 0, force_partial_int
= 0;
198 int force_consec
= 0;
201 for (pp
= optabs
[pindex
]; pp
[0] != '$' || pp
[1] != '('; pp
++)
204 for (pp
+= 2, np
= name
; matches
&& ! (pp
[0] == '$' && pp
[1] == ')');
222 force_partial_int
= 1;
230 for (op
= 0; op
< NUM_RTX_CODE
; op
++)
232 for (p
= GET_RTX_NAME(op
), q
= np
; *p
; p
++, q
++)
236 /* We have to be concerned about matching "gt" and
237 missing "gtu", e.g., so verify we have reached the
238 end of thing we are to match. */
239 if (*p
== 0 && *q
== 0
240 && (GET_RTX_CLASS (op
) == RTX_COMPARE
241 || GET_RTX_CLASS (op
) == RTX_COMM_COMPARE
))
245 if (op
== NUM_RTX_CODE
)
248 np
+= strlen (GET_RTX_NAME(op
));
252 /* This loop will stop at the first prefix match, so
253 look through the modes in reverse order, in case
254 there are extra CC modes and CC is a prefix of the
255 CC modes (as it should be). */
256 for (i
= (MAX_MACHINE_MODE
) - 1; i
>= 0; i
--)
258 for (p
= GET_MODE_NAME(i
), q
= np
; *p
; p
++, q
++)
259 if (TOLOWER (*p
) != *q
)
263 && (! force_int
|| mode_class
[i
] == MODE_INT
264 || mode_class
[i
] == MODE_VECTOR_INT
)
265 && (! force_partial_int
266 || mode_class
[i
] == MODE_INT
267 || mode_class
[i
] == MODE_PARTIAL_INT
268 || mode_class
[i
] == MODE_VECTOR_INT
)
269 && (! force_float
|| mode_class
[i
] == MODE_FLOAT
270 || mode_class
[i
] == MODE_COMPLEX_FLOAT
271 || mode_class
[i
] == MODE_VECTOR_FLOAT
))
278 m1
= i
, np
+= strlen (GET_MODE_NAME(i
));
280 m2
= i
, np
+= strlen (GET_MODE_NAME(i
));
282 force_int
= force_partial_int
= force_float
= 0;
290 if (matches
&& pp
[0] == '$' && pp
[1] == ')'
292 && (! force_consec
|| (int) GET_MODE_WIDER_MODE(m1
) == m2
))
296 if (pindex
== ARRAY_SIZE (optabs
))
299 /* We found a match. If this pattern is only conditionally present,
300 write out the "if" and two extra blanks. */
302 if (*XSTR (insn
, 2) != 0)
303 printf (" if (HAVE_%s)\n ", name
);
307 /* Now write out the initialization, making all required substitutions. */
308 for (pp
= optabs
[pindex
]; *pp
; pp
++)
316 case 'I': case 'F': case 'N':
319 if (GET_MODE_CLASS (m1
) == MODE_FLOAT
)
323 for (np
= GET_MODE_NAME(m1
); *np
; np
++)
324 putchar (TOLOWER (*np
));
327 for (np
= GET_MODE_NAME(m2
); *np
; np
++)
328 putchar (TOLOWER (*np
));
331 printf ("%smode", GET_MODE_NAME(m1
));
334 printf ("%smode", GET_MODE_NAME(m2
));
337 printf ("%s", GET_RTX_NAME(op
));
340 for (np
= GET_RTX_NAME(op
); *np
; np
++)
341 putchar (TOUPPER (*np
));
349 extern int main (int, char **);
352 main (int argc
, char **argv
)
356 progname
= "genopinit";
358 if (init_md_reader_args (argc
, argv
) != SUCCESS_EXIT_CODE
)
359 return (FATAL_EXIT_CODE
);
361 printf ("/* Generated automatically by the program `genopinit'\n\
362 from the machine description file `md'. */\n\n");
364 printf ("#include \"config.h\"\n");
365 printf ("#include \"system.h\"\n");
366 printf ("#include \"coretypes.h\"\n");
367 printf ("#include \"tm.h\"\n");
368 printf ("#include \"rtl.h\"\n");
369 printf ("#include \"flags.h\"\n");
370 printf ("#include \"insn-config.h\"\n");
371 printf ("#include \"recog.h\"\n");
372 printf ("#include \"expr.h\"\n");
373 printf ("#include \"optabs.h\"\n");
374 printf ("#include \"reload.h\"\n\n");
376 printf ("void\ninit_all_optabs (void)\n{\n");
379 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
383 /* Read the machine description. */
387 int line_no
, insn_code_number
= 0;
389 desc
= read_md_rtx (&line_no
, &insn_code_number
);
393 if (GET_CODE (desc
) == DEFINE_INSN
|| GET_CODE (desc
) == DEFINE_EXPAND
)
399 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
400 /* This flag says the same insns that convert to a signed fixnum\n\
401 also convert validly to an unsigned one. */\n\
402 for (i = 0; i < NUM_MACHINE_MODES; i++)\n\
403 for (j = 0; j < NUM_MACHINE_MODES; j++)\n\
404 ufixtrunc_optab->handlers[i][j].insn_code\n\
405 = sfixtrunc_optab->handlers[i][j].insn_code;\n\
410 return (ferror (stdout
) != 0 ? FATAL_EXIT_CODE
: SUCCESS_EXIT_CODE
);
413 /* Define this so we can link with print-rtl.o to get debug_rtx function. */
415 get_insn_name (int code ATTRIBUTE_UNUSED
)