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_load_optab->handlers[$A].insn_code = CODE_FOR_$(vec_realign_load_$a$)",
174 "vcond_gen_code[$A] = CODE_FOR_$(vcond$a$)",
175 "vcondu_gen_code[$A] = CODE_FOR_$(vcondu$a$)" };
177 static void gen_insn (rtx
);
182 const char *name
= XSTR (insn
, 0);
183 int m1
= 0, m2
= 0, op
= 0;
186 const char *np
, *pp
, *p
, *q
;
188 /* Don't mention instructions whose names are the null string.
189 They are in the machine description just to be recognized. */
193 /* See if NAME matches one of the patterns we have for the optabs we know
196 for (pindex
= 0; pindex
< ARRAY_SIZE (optabs
); pindex
++)
198 int force_float
= 0, force_int
= 0, force_partial_int
= 0;
199 int force_consec
= 0;
202 for (pp
= optabs
[pindex
]; pp
[0] != '$' || pp
[1] != '('; pp
++)
205 for (pp
+= 2, np
= name
; matches
&& ! (pp
[0] == '$' && pp
[1] == ')');
223 force_partial_int
= 1;
231 for (op
= 0; op
< NUM_RTX_CODE
; op
++)
233 for (p
= GET_RTX_NAME(op
), q
= np
; *p
; p
++, q
++)
237 /* We have to be concerned about matching "gt" and
238 missing "gtu", e.g., so verify we have reached the
239 end of thing we are to match. */
240 if (*p
== 0 && *q
== 0
241 && (GET_RTX_CLASS (op
) == RTX_COMPARE
242 || GET_RTX_CLASS (op
) == RTX_COMM_COMPARE
))
246 if (op
== NUM_RTX_CODE
)
249 np
+= strlen (GET_RTX_NAME(op
));
253 /* This loop will stop at the first prefix match, so
254 look through the modes in reverse order, in case
255 there are extra CC modes and CC is a prefix of the
256 CC modes (as it should be). */
257 for (i
= (MAX_MACHINE_MODE
) - 1; i
>= 0; i
--)
259 for (p
= GET_MODE_NAME(i
), q
= np
; *p
; p
++, q
++)
260 if (TOLOWER (*p
) != *q
)
264 && (! force_int
|| mode_class
[i
] == MODE_INT
265 || mode_class
[i
] == MODE_VECTOR_INT
)
266 && (! force_partial_int
267 || mode_class
[i
] == MODE_INT
268 || mode_class
[i
] == MODE_PARTIAL_INT
269 || mode_class
[i
] == MODE_VECTOR_INT
)
270 && (! force_float
|| mode_class
[i
] == MODE_FLOAT
271 || mode_class
[i
] == MODE_COMPLEX_FLOAT
272 || mode_class
[i
] == MODE_VECTOR_FLOAT
))
279 m1
= i
, np
+= strlen (GET_MODE_NAME(i
));
281 m2
= i
, np
+= strlen (GET_MODE_NAME(i
));
283 force_int
= force_partial_int
= force_float
= 0;
291 if (matches
&& pp
[0] == '$' && pp
[1] == ')'
293 && (! force_consec
|| (int) GET_MODE_WIDER_MODE(m1
) == m2
))
297 if (pindex
== ARRAY_SIZE (optabs
))
300 /* We found a match. If this pattern is only conditionally present,
301 write out the "if" and two extra blanks. */
303 if (*XSTR (insn
, 2) != 0)
304 printf (" if (HAVE_%s)\n ", name
);
308 /* Now write out the initialization, making all required substitutions. */
309 for (pp
= optabs
[pindex
]; *pp
; pp
++)
317 case 'I': case 'F': case 'N':
320 if (GET_MODE_CLASS (m1
) == MODE_FLOAT
)
324 for (np
= GET_MODE_NAME(m1
); *np
; np
++)
325 putchar (TOLOWER (*np
));
328 for (np
= GET_MODE_NAME(m2
); *np
; np
++)
329 putchar (TOLOWER (*np
));
332 printf ("%smode", GET_MODE_NAME(m1
));
335 printf ("%smode", GET_MODE_NAME(m2
));
338 printf ("%s", GET_RTX_NAME(op
));
341 for (np
= GET_RTX_NAME(op
); *np
; np
++)
342 putchar (TOUPPER (*np
));
350 extern int main (int, char **);
353 main (int argc
, char **argv
)
357 progname
= "genopinit";
359 if (init_md_reader_args (argc
, argv
) != SUCCESS_EXIT_CODE
)
360 return (FATAL_EXIT_CODE
);
362 printf ("/* Generated automatically by the program `genopinit'\n\
363 from the machine description file `md'. */\n\n");
365 printf ("#include \"config.h\"\n");
366 printf ("#include \"system.h\"\n");
367 printf ("#include \"coretypes.h\"\n");
368 printf ("#include \"tm.h\"\n");
369 printf ("#include \"rtl.h\"\n");
370 printf ("#include \"flags.h\"\n");
371 printf ("#include \"insn-config.h\"\n");
372 printf ("#include \"recog.h\"\n");
373 printf ("#include \"expr.h\"\n");
374 printf ("#include \"optabs.h\"\n");
375 printf ("#include \"reload.h\"\n\n");
377 printf ("void\ninit_all_optabs (void)\n{\n");
380 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
384 /* Read the machine description. */
388 int line_no
, insn_code_number
= 0;
390 desc
= read_md_rtx (&line_no
, &insn_code_number
);
394 if (GET_CODE (desc
) == DEFINE_INSN
|| GET_CODE (desc
) == DEFINE_EXPAND
)
400 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
401 /* This flag says the same insns that convert to a signed fixnum\n\
402 also convert validly to an unsigned one. */\n\
403 for (i = 0; i < NUM_MACHINE_MODES; i++)\n\
404 for (j = 0; j < NUM_MACHINE_MODES; j++)\n\
405 ufixtrunc_optab->handlers[i][j].insn_code\n\
406 = sfixtrunc_optab->handlers[i][j].insn_code;\n\
411 return (ferror (stdout
) != 0 ? FATAL_EXIT_CODE
: SUCCESS_EXIT_CODE
);
414 /* Define this so we can link with print-rtl.o to get debug_rtx function. */
416 get_insn_name (int code ATTRIBUTE_UNUSED
)