1 /* Generate code to initialize optabs from machine description.
2 Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
3 2001, 2002, 2003 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$a$)" };
157 static void gen_insn (rtx
);
162 const char *name
= XSTR (insn
, 0);
163 int m1
= 0, m2
= 0, op
= 0;
166 const char *np
, *pp
, *p
, *q
;
168 /* Don't mention instructions whose names are the null string.
169 They are in the machine description just to be recognized. */
173 /* See if NAME matches one of the patterns we have for the optabs we know
176 for (pindex
= 0; pindex
< ARRAY_SIZE (optabs
); pindex
++)
178 int force_float
= 0, force_int
= 0, force_partial_int
= 0;
179 int force_consec
= 0;
182 for (pp
= optabs
[pindex
]; pp
[0] != '$' || pp
[1] != '('; pp
++)
185 for (pp
+= 2, np
= name
; matches
&& ! (pp
[0] == '$' && pp
[1] == ')');
203 force_partial_int
= 1;
211 for (op
= 0; op
< NUM_RTX_CODE
; op
++)
213 for (p
= GET_RTX_NAME(op
), q
= np
; *p
; p
++, q
++)
217 /* We have to be concerned about matching "gt" and
218 missing "gtu", e.g., so verify we have reached the
219 end of thing we are to match. */
220 if (*p
== 0 && *q
== 0 && GET_RTX_CLASS(op
) == '<')
224 if (op
== NUM_RTX_CODE
)
227 np
+= strlen (GET_RTX_NAME(op
));
231 /* This loop will stop at the first prefix match, so
232 look through the modes in reverse order, in case
233 there are extra CC modes and CC is a prefix of the
234 CC modes (as it should be). */
235 for (i
= (MAX_MACHINE_MODE
) - 1; i
>= 0; i
--)
237 for (p
= GET_MODE_NAME(i
), q
= np
; *p
; p
++, q
++)
238 if (TOLOWER (*p
) != *q
)
242 && (! force_int
|| mode_class
[i
] == MODE_INT
243 || mode_class
[i
] == MODE_VECTOR_INT
)
244 && (! force_partial_int
245 || mode_class
[i
] == MODE_INT
246 || mode_class
[i
] == MODE_PARTIAL_INT
247 || mode_class
[i
] == MODE_VECTOR_INT
)
248 && (! force_float
|| mode_class
[i
] == MODE_FLOAT
249 || mode_class
[i
] == MODE_VECTOR_FLOAT
))
256 m1
= i
, np
+= strlen (GET_MODE_NAME(i
));
258 m2
= i
, np
+= strlen (GET_MODE_NAME(i
));
260 force_int
= force_partial_int
= force_float
= 0;
268 if (matches
&& pp
[0] == '$' && pp
[1] == ')'
270 && (! force_consec
|| (int) GET_MODE_WIDER_MODE(m1
) == m2
))
274 if (pindex
== ARRAY_SIZE (optabs
))
277 /* We found a match. If this pattern is only conditionally present,
278 write out the "if" and two extra blanks. */
280 if (*XSTR (insn
, 2) != 0)
281 printf (" if (HAVE_%s)\n ", name
);
285 /* Now write out the initialization, making all required substitutions. */
286 for (pp
= optabs
[pindex
]; *pp
; pp
++)
294 case 'I': case 'F': case 'N':
297 if (GET_MODE_CLASS (m1
) == MODE_FLOAT
)
301 for (np
= GET_MODE_NAME(m1
); *np
; np
++)
302 putchar (TOLOWER (*np
));
305 for (np
= GET_MODE_NAME(m2
); *np
; np
++)
306 putchar (TOLOWER (*np
));
309 printf ("%smode", GET_MODE_NAME(m1
));
312 printf ("%smode", GET_MODE_NAME(m2
));
315 printf ("%s", GET_RTX_NAME(op
));
318 for (np
= GET_RTX_NAME(op
); *np
; np
++)
319 putchar (TOUPPER (*np
));
327 extern int main (int, char **);
330 main (int argc
, char **argv
)
334 progname
= "genopinit";
337 fatal ("no input file name");
339 if (init_md_reader_args (argc
, argv
) != SUCCESS_EXIT_CODE
)
340 return (FATAL_EXIT_CODE
);
342 printf ("/* Generated automatically by the program `genopinit'\n\
343 from the machine description file `md'. */\n\n");
345 printf ("#include \"config.h\"\n");
346 printf ("#include \"system.h\"\n");
347 printf ("#include \"coretypes.h\"\n");
348 printf ("#include \"tm.h\"\n");
349 printf ("#include \"rtl.h\"\n");
350 printf ("#include \"flags.h\"\n");
351 printf ("#include \"insn-config.h\"\n");
352 printf ("#include \"recog.h\"\n");
353 printf ("#include \"expr.h\"\n");
354 printf ("#include \"optabs.h\"\n");
355 printf ("#include \"reload.h\"\n\n");
357 printf ("void\ninit_all_optabs (void)\n{\n");
360 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
364 /* Read the machine description. */
368 int line_no
, insn_code_number
= 0;
370 desc
= read_md_rtx (&line_no
, &insn_code_number
);
374 if (GET_CODE (desc
) == DEFINE_INSN
|| GET_CODE (desc
) == DEFINE_EXPAND
)
380 #ifdef FIXUNS_TRUNC_LIKE_FIX_TRUNC\n\
381 /* This flag says the same insns that convert to a signed fixnum\n\
382 also convert validly to an unsigned one. */\n\
383 for (i = 0; i < NUM_MACHINE_MODES; i++)\n\
384 for (j = 0; j < NUM_MACHINE_MODES; j++)\n\
385 ufixtrunc_optab->handlers[i][j].insn_code\n\
386 = sfixtrunc_optab->handlers[i][j].insn_code;\n\
391 return (ferror (stdout
) != 0 ? FATAL_EXIT_CODE
: SUCCESS_EXIT_CODE
);
394 /* Define this so we can link with print-rtl.o to get debug_rtx function. */
396 get_insn_name (int code ATTRIBUTE_UNUSED
)