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$)"
204 static void gen_insn (rtx
);
209 const char *name
= XSTR (insn
, 0);
210 int m1
= 0, m2
= 0, op
= 0;
213 const char *np
, *pp
, *p
, *q
;
215 /* Don't mention instructions whose names are the null string.
216 They are in the machine description just to be recognized. */
220 /* See if NAME matches one of the patterns we have for the optabs we know
223 for (pindex
= 0; pindex
< ARRAY_SIZE (optabs
); pindex
++)
225 int force_float
= 0, force_int
= 0, force_partial_int
= 0;
226 int force_consec
= 0;
229 for (pp
= optabs
[pindex
]; pp
[0] != '$' || pp
[1] != '('; pp
++)
232 for (pp
+= 2, np
= name
; matches
&& ! (pp
[0] == '$' && pp
[1] == ')');
250 force_partial_int
= 1;
258 for (op
= 0; op
< NUM_RTX_CODE
; op
++)
260 for (p
= GET_RTX_NAME(op
), q
= np
; *p
; p
++, q
++)
264 /* We have to be concerned about matching "gt" and
265 missing "gtu", e.g., so verify we have reached the
266 end of thing we are to match. */
267 if (*p
== 0 && *q
== 0
268 && (GET_RTX_CLASS (op
) == RTX_COMPARE
269 || GET_RTX_CLASS (op
) == RTX_COMM_COMPARE
))
273 if (op
== NUM_RTX_CODE
)
276 np
+= strlen (GET_RTX_NAME(op
));
280 /* This loop will stop at the first prefix match, so
281 look through the modes in reverse order, in case
282 there are extra CC modes and CC is a prefix of the
283 CC modes (as it should be). */
284 for (i
= (MAX_MACHINE_MODE
) - 1; i
>= 0; i
--)
286 for (p
= GET_MODE_NAME(i
), q
= np
; *p
; p
++, q
++)
287 if (TOLOWER (*p
) != *q
)
291 && (! force_int
|| mode_class
[i
] == MODE_INT
292 || mode_class
[i
] == MODE_VECTOR_INT
)
293 && (! force_partial_int
294 || mode_class
[i
] == MODE_INT
295 || mode_class
[i
] == MODE_PARTIAL_INT
296 || mode_class
[i
] == MODE_VECTOR_INT
)
297 && (! force_float
|| mode_class
[i
] == MODE_FLOAT
298 || mode_class
[i
] == MODE_COMPLEX_FLOAT
299 || mode_class
[i
] == MODE_VECTOR_FLOAT
))
306 m1
= i
, np
+= strlen (GET_MODE_NAME(i
));
308 m2
= i
, np
+= strlen (GET_MODE_NAME(i
));
310 force_int
= force_partial_int
= force_float
= 0;
318 if (matches
&& pp
[0] == '$' && pp
[1] == ')'
320 && (! force_consec
|| (int) GET_MODE_WIDER_MODE(m1
) == m2
))
324 if (pindex
== ARRAY_SIZE (optabs
))
327 /* We found a match. If this pattern is only conditionally present,
328 write out the "if" and two extra blanks. */
330 if (*XSTR (insn
, 2) != 0)
331 printf (" if (HAVE_%s)\n ", name
);
335 /* Now write out the initialization, making all required substitutions. */
336 for (pp
= optabs
[pindex
]; *pp
; pp
++)
344 case 'I': case 'F': case 'N':
347 if (GET_MODE_CLASS (m1
) == MODE_FLOAT
)
351 for (np
= GET_MODE_NAME(m1
); *np
; np
++)
352 putchar (TOLOWER (*np
));
355 for (np
= GET_MODE_NAME(m2
); *np
; np
++)
356 putchar (TOLOWER (*np
));
359 printf ("%smode", GET_MODE_NAME(m1
));
362 printf ("%smode", GET_MODE_NAME(m2
));
365 printf ("%s", GET_RTX_NAME(op
));
368 for (np
= GET_RTX_NAME(op
); *np
; np
++)
369 putchar (TOUPPER (*np
));
377 extern int main (int, char **);
380 main (int argc
, char **argv
)
384 progname
= "genopinit";
386 if (init_md_reader_args (argc
, argv
) != SUCCESS_EXIT_CODE
)
387 return (FATAL_EXIT_CODE
);
389 printf ("/* Generated automatically by the program `genopinit'\n\
390 from the machine description file `md'. */\n\n");
392 printf ("#include \"config.h\"\n");
393 printf ("#include \"system.h\"\n");
394 printf ("#include \"coretypes.h\"\n");
395 printf ("#include \"tm.h\"\n");
396 printf ("#include \"rtl.h\"\n");
397 printf ("#include \"flags.h\"\n");
398 printf ("#include \"insn-config.h\"\n");
399 printf ("#include \"recog.h\"\n");
400 printf ("#include \"expr.h\"\n");
401 printf ("#include \"optabs.h\"\n");
402 printf ("#include \"reload.h\"\n\n");
404 printf ("void\ninit_all_optabs (void)\n{\n");
407 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
411 /* Read the machine description. */
415 int line_no
, insn_code_number
= 0;
417 desc
= read_md_rtx (&line_no
, &insn_code_number
);
421 if (GET_CODE (desc
) == DEFINE_INSN
|| GET_CODE (desc
) == DEFINE_EXPAND
)
427 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
428 /* This flag says the same insns that convert to a signed fixnum\n\
429 also convert validly to an unsigned one. */\n\
430 for (i = 0; i < NUM_MACHINE_MODES; i++)\n\
431 for (j = 0; j < NUM_MACHINE_MODES; j++)\n\
432 ufixtrunc_optab->handlers[i][j].insn_code\n\
433 = sfixtrunc_optab->handlers[i][j].insn_code;\n\
438 return (ferror (stdout
) != 0 ? FATAL_EXIT_CODE
: SUCCESS_EXIT_CODE
);
441 /* Define this so we can link with print-rtl.o to get debug_rtx function. */
443 get_insn_name (int code ATTRIBUTE_UNUSED
)