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 "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$a$)",
154 "cmpstr_optab[$A] = CODE_FOR_$(cmpstr$a$)",
155 "cmpmem_optab[$A] = CODE_FOR_$(cmpmem$a$)",
156 "vec_set_optab->handlers[$A].insn_code = CODE_FOR_$(vec_set$a$)",
157 "vec_extract_optab->handlers[$A].insn_code = CODE_FOR_$(vec_extract$a$)",
158 "vec_init_optab->handlers[$A].insn_code = CODE_FOR_$(vec_init$a$)" };
160 static void gen_insn (rtx
);
165 const char *name
= XSTR (insn
, 0);
166 int m1
= 0, m2
= 0, op
= 0;
169 const char *np
, *pp
, *p
, *q
;
171 /* Don't mention instructions whose names are the null string.
172 They are in the machine description just to be recognized. */
176 /* See if NAME matches one of the patterns we have for the optabs we know
179 for (pindex
= 0; pindex
< ARRAY_SIZE (optabs
); pindex
++)
181 int force_float
= 0, force_int
= 0, force_partial_int
= 0;
182 int force_consec
= 0;
185 for (pp
= optabs
[pindex
]; pp
[0] != '$' || pp
[1] != '('; pp
++)
188 for (pp
+= 2, np
= name
; matches
&& ! (pp
[0] == '$' && pp
[1] == ')');
206 force_partial_int
= 1;
214 for (op
= 0; op
< NUM_RTX_CODE
; op
++)
216 for (p
= GET_RTX_NAME(op
), q
= np
; *p
; p
++, q
++)
220 /* We have to be concerned about matching "gt" and
221 missing "gtu", e.g., so verify we have reached the
222 end of thing we are to match. */
223 if (*p
== 0 && *q
== 0 && GET_RTX_CLASS(op
) == '<')
227 if (op
== NUM_RTX_CODE
)
230 np
+= strlen (GET_RTX_NAME(op
));
234 /* This loop will stop at the first prefix match, so
235 look through the modes in reverse order, in case
236 there are extra CC modes and CC is a prefix of the
237 CC modes (as it should be). */
238 for (i
= (MAX_MACHINE_MODE
) - 1; i
>= 0; i
--)
240 for (p
= GET_MODE_NAME(i
), q
= np
; *p
; p
++, q
++)
241 if (TOLOWER (*p
) != *q
)
245 && (! force_int
|| mode_class
[i
] == MODE_INT
246 || mode_class
[i
] == MODE_VECTOR_INT
)
247 && (! force_partial_int
248 || mode_class
[i
] == MODE_INT
249 || mode_class
[i
] == MODE_PARTIAL_INT
250 || mode_class
[i
] == MODE_VECTOR_INT
)
251 && (! force_float
|| mode_class
[i
] == MODE_FLOAT
252 || mode_class
[i
] == MODE_VECTOR_FLOAT
))
259 m1
= i
, np
+= strlen (GET_MODE_NAME(i
));
261 m2
= i
, np
+= strlen (GET_MODE_NAME(i
));
263 force_int
= force_partial_int
= force_float
= 0;
271 if (matches
&& pp
[0] == '$' && pp
[1] == ')'
273 && (! force_consec
|| (int) GET_MODE_WIDER_MODE(m1
) == m2
))
277 if (pindex
== ARRAY_SIZE (optabs
))
280 /* We found a match. If this pattern is only conditionally present,
281 write out the "if" and two extra blanks. */
283 if (*XSTR (insn
, 2) != 0)
284 printf (" if (HAVE_%s)\n ", name
);
288 /* Now write out the initialization, making all required substitutions. */
289 for (pp
= optabs
[pindex
]; *pp
; pp
++)
297 case 'I': case 'F': case 'N':
300 if (GET_MODE_CLASS (m1
) == MODE_FLOAT
)
304 for (np
= GET_MODE_NAME(m1
); *np
; np
++)
305 putchar (TOLOWER (*np
));
308 for (np
= GET_MODE_NAME(m2
); *np
; np
++)
309 putchar (TOLOWER (*np
));
312 printf ("%smode", GET_MODE_NAME(m1
));
315 printf ("%smode", GET_MODE_NAME(m2
));
318 printf ("%s", GET_RTX_NAME(op
));
321 for (np
= GET_RTX_NAME(op
); *np
; np
++)
322 putchar (TOUPPER (*np
));
330 extern int main (int, char **);
333 main (int argc
, char **argv
)
337 progname
= "genopinit";
340 fatal ("no input file name");
342 if (init_md_reader_args (argc
, argv
) != SUCCESS_EXIT_CODE
)
343 return (FATAL_EXIT_CODE
);
345 printf ("/* Generated automatically by the program `genopinit'\n\
346 from the machine description file `md'. */\n\n");
348 printf ("#include \"config.h\"\n");
349 printf ("#include \"system.h\"\n");
350 printf ("#include \"coretypes.h\"\n");
351 printf ("#include \"tm.h\"\n");
352 printf ("#include \"rtl.h\"\n");
353 printf ("#include \"flags.h\"\n");
354 printf ("#include \"insn-config.h\"\n");
355 printf ("#include \"recog.h\"\n");
356 printf ("#include \"expr.h\"\n");
357 printf ("#include \"optabs.h\"\n");
358 printf ("#include \"reload.h\"\n\n");
360 printf ("void\ninit_all_optabs (void)\n{\n");
363 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
367 /* Read the machine description. */
371 int line_no
, insn_code_number
= 0;
373 desc
= read_md_rtx (&line_no
, &insn_code_number
);
377 if (GET_CODE (desc
) == DEFINE_INSN
|| GET_CODE (desc
) == DEFINE_EXPAND
)
383 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
384 /* This flag says the same insns that convert to a signed fixnum\n\
385 also convert validly to an unsigned one. */\n\
386 for (i = 0; i < NUM_MACHINE_MODES; i++)\n\
387 for (j = 0; j < NUM_MACHINE_MODES; j++)\n\
388 ufixtrunc_optab->handlers[i][j].insn_code\n\
389 = sfixtrunc_optab->handlers[i][j].insn_code;\n\
394 return (ferror (stdout
) != 0 ? FATAL_EXIT_CODE
: SUCCESS_EXIT_CODE
);
397 /* Define this so we can link with print-rtl.o to get debug_rtx function. */
399 get_insn_name (int code ATTRIBUTE_UNUSED
)