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author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
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1 /* Definitions for code generation pass of GNU compiler.
2 Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
3 Free Software Foundation, Inc.
4
5 This file is part of GCC.
6
7 GCC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
10 any later version.
11
12 GCC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
20
21 #ifndef GCC_OPTABS_H
22 #define GCC_OPTABS_H
23
24 #include "insn-codes.h"
25
26 /* Optabs are tables saying how to generate insn bodies
27 for various machine modes and numbers of operands.
28 Each optab applies to one operation.
29
30 For example, add_optab applies to addition.
31
32 The insn_code slot is the enum insn_code that says how to
33 generate an insn for this operation on a particular machine mode.
34 It is CODE_FOR_nothing if there is no such insn on the target machine.
35
36 The `lib_call' slot is the name of the library function that
37 can be used to perform the operation.
38
39 A few optabs, such as move_optab and cmp_optab, are used
40 by special code. */
41
42 struct optab_handlers
43 {
44 enum insn_code insn_code;
45 };
46
47 struct optab
48 {
49 enum rtx_code code;
50 const char *libcall_basename;
51 char libcall_suffix;
52 void (*libcall_gen)(struct optab *, const char *name, char suffix, enum machine_mode);
53 struct optab_handlers handlers[NUM_MACHINE_MODES];
54 };
55 typedef struct optab * optab;
56
57 /* A convert_optab is for some sort of conversion operation between
58 modes. The first array index is the destination mode, the second
59 is the source mode. */
60 struct convert_optab
61 {
62 enum rtx_code code;
63 const char *libcall_basename;
64 void (*libcall_gen)(struct convert_optab *, const char *name,
65 enum machine_mode,
66 enum machine_mode);
67 struct optab_handlers handlers[NUM_MACHINE_MODES][NUM_MACHINE_MODES];
68 };
69 typedef struct convert_optab *convert_optab;
70
71 /* Given an enum insn_code, access the function to construct
72 the body of that kind of insn. */
73 #define GEN_FCN(CODE) (insn_data[CODE].genfun)
74
75 /* Enumeration of valid indexes into optab_table. */
76 enum optab_index
77 {
78 /* Fixed-point operators with signed/unsigned saturation */
79 OTI_ssadd,
80 OTI_usadd,
81 OTI_sssub,
82 OTI_ussub,
83 OTI_ssmul,
84 OTI_usmul,
85 OTI_ssdiv,
86 OTI_usdiv,
87 OTI_ssneg,
88 OTI_usneg,
89 OTI_ssashl,
90 OTI_usashl,
91
92 OTI_add,
93 OTI_addv,
94 OTI_sub,
95 OTI_subv,
96
97 /* Signed and fp multiply */
98 OTI_smul,
99 OTI_smulv,
100 /* Signed multiply, return high word */
101 OTI_smul_highpart,
102 OTI_umul_highpart,
103 /* Signed multiply with result one machine mode wider than args */
104 OTI_smul_widen,
105 OTI_umul_widen,
106 /* Widening multiply of one unsigned and one signed operand. */
107 OTI_usmul_widen,
108 /* Signed multiply and add with the result and addend one machine mode
109 wider than the multiplicand and multiplier. */
110 OTI_smadd_widen,
111 /* Unsigned multiply and add with the result and addend one machine mode
112 wider than the multiplicand and multiplier. */
113 OTI_umadd_widen,
114 /* Signed multiply and add with the result and addend one machine mode
115 wider than the multiplicand and multiplier.
116 All involved operations are saturating. */
117 OTI_ssmadd_widen,
118 /* Unsigned multiply and add with the result and addend one machine mode
119 wider than the multiplicand and multiplier.
120 All involved operations are saturating. */
121 OTI_usmadd_widen,
122 /* Signed multiply and subtract the result and minuend one machine mode
123 wider than the multiplicand and multiplier. */
124 OTI_smsub_widen,
125 /* Unsigned multiply and subtract the result and minuend one machine mode
126 wider than the multiplicand and multiplier. */
127 OTI_umsub_widen,
128 /* Signed multiply and subtract the result and minuend one machine mode
129 wider than the multiplicand and multiplier.
130 All involved operations are saturating. */
131 OTI_ssmsub_widen,
132 /* Unsigned multiply and subtract the result and minuend one machine mode
133 wider than the multiplicand and multiplier.
134 All involved operations are saturating. */
135 OTI_usmsub_widen,
136
137 /* Signed divide */
138 OTI_sdiv,
139 OTI_sdivv,
140 /* Signed divide-and-remainder in one */
141 OTI_sdivmod,
142 OTI_udiv,
143 OTI_udivmod,
144 /* Signed remainder */
145 OTI_smod,
146 OTI_umod,
147 /* Floating point remainder functions */
148 OTI_fmod,
149 OTI_remainder,
150 /* Convert float to integer in float fmt */
151 OTI_ftrunc,
152
153 /* Logical and */
154 OTI_and,
155 /* Logical or */
156 OTI_ior,
157 /* Logical xor */
158 OTI_xor,
159
160 /* Arithmetic shift left */
161 OTI_ashl,
162 /* Logical shift right */
163 OTI_lshr,
164 /* Arithmetic shift right */
165 OTI_ashr,
166 /* Rotate left */
167 OTI_rotl,
168 /* Rotate right */
169 OTI_rotr,
170
171 /* Arithmetic shift left of vector by vector */
172 OTI_vashl,
173 /* Logical shift right of vector by vector */
174 OTI_vlshr,
175 /* Arithmetic shift right of vector by vector */
176 OTI_vashr,
177 /* Rotate left of vector by vector */
178 OTI_vrotl,
179 /* Rotate right of vector by vector */
180 OTI_vrotr,
181
182 /* Signed and floating-point minimum value */
183 OTI_smin,
184 /* Signed and floating-point maximum value */
185 OTI_smax,
186 /* Unsigned minimum value */
187 OTI_umin,
188 /* Unsigned maximum value */
189 OTI_umax,
190 /* Power */
191 OTI_pow,
192 /* Arc tangent of y/x */
193 OTI_atan2,
194
195 /* Move instruction. */
196 OTI_mov,
197 /* Move, preserving high part of register. */
198 OTI_movstrict,
199 /* Move, with a misaligned memory. */
200 OTI_movmisalign,
201 /* Nontemporal store. */
202 OTI_storent,
203
204 /* Unary operations */
205 /* Negation */
206 OTI_neg,
207 OTI_negv,
208 /* Abs value */
209 OTI_abs,
210 OTI_absv,
211 /* Byteswap */
212 OTI_bswap,
213 /* Bitwise not */
214 OTI_one_cmpl,
215 /* Bit scanning and counting */
216 OTI_ffs,
217 OTI_clz,
218 OTI_ctz,
219 OTI_popcount,
220 OTI_parity,
221 /* Square root */
222 OTI_sqrt,
223 /* Sine-Cosine */
224 OTI_sincos,
225 /* Sine */
226 OTI_sin,
227 /* Inverse sine */
228 OTI_asin,
229 /* Cosine */
230 OTI_cos,
231 /* Inverse cosine */
232 OTI_acos,
233 /* Exponential */
234 OTI_exp,
235 /* Base-10 Exponential */
236 OTI_exp10,
237 /* Base-2 Exponential */
238 OTI_exp2,
239 /* Exponential - 1*/
240 OTI_expm1,
241 /* Load exponent of a floating point number */
242 OTI_ldexp,
243 /* Multiply floating-point number by integral power of radix */
244 OTI_scalb,
245 /* Radix-independent exponent */
246 OTI_logb,
247 OTI_ilogb,
248 /* Natural Logarithm */
249 OTI_log,
250 /* Base-10 Logarithm */
251 OTI_log10,
252 /* Base-2 Logarithm */
253 OTI_log2,
254 /* logarithm of 1 plus argument */
255 OTI_log1p,
256 /* Rounding functions */
257 OTI_floor,
258 OTI_ceil,
259 OTI_btrunc,
260 OTI_round,
261 OTI_nearbyint,
262 OTI_rint,
263 /* Tangent */
264 OTI_tan,
265 /* Inverse tangent */
266 OTI_atan,
267 /* Copy sign */
268 OTI_copysign,
269 /* Signbit */
270 OTI_signbit,
271 /* Test for infinite value */
272 OTI_isinf,
273
274 /* Compare insn; two operands. */
275 OTI_cmp,
276 /* Used only for libcalls for unsigned comparisons. */
277 OTI_ucmp,
278 /* tst insn; compare one operand against 0 */
279 OTI_tst,
280
281 /* Floating point comparison optabs - used primarily for libfuncs */
282 OTI_eq,
283 OTI_ne,
284 OTI_gt,
285 OTI_ge,
286 OTI_lt,
287 OTI_le,
288 OTI_unord,
289
290 /* String length */
291 OTI_strlen,
292
293 /* Combined compare & jump/store flags/move operations. */
294 OTI_cbranch,
295 OTI_cmov,
296 OTI_cstore,
297
298 /* Push instruction. */
299 OTI_push,
300
301 /* Conditional add instruction. */
302 OTI_addcc,
303
304 /* Reduction operations on a vector operand. */
305 OTI_reduc_smax,
306 OTI_reduc_umax,
307 OTI_reduc_smin,
308 OTI_reduc_umin,
309 OTI_reduc_splus,
310 OTI_reduc_uplus,
311
312 /* Summation, with result machine mode one or more wider than args. */
313 OTI_ssum_widen,
314 OTI_usum_widen,
315
316 /* Dot product, with result machine mode one or more wider than args. */
317 OTI_sdot_prod,
318 OTI_udot_prod,
319
320 /* Set specified field of vector operand. */
321 OTI_vec_set,
322 /* Extract specified field of vector operand. */
323 OTI_vec_extract,
324 /* Extract even/odd fields of vector operands. */
325 OTI_vec_extract_even,
326 OTI_vec_extract_odd,
327 /* Interleave fields of vector operands. */
328 OTI_vec_interleave_high,
329 OTI_vec_interleave_low,
330 /* Initialize vector operand. */
331 OTI_vec_init,
332 /* Whole vector shift. The shift amount is in bits. */
333 OTI_vec_shl,
334 OTI_vec_shr,
335 /* Extract specified elements from vectors, for vector load. */
336 OTI_vec_realign_load,
337 /* Widening multiplication.
338 The high/low part of the resulting vector of products is returned. */
339 OTI_vec_widen_umult_hi,
340 OTI_vec_widen_umult_lo,
341 OTI_vec_widen_smult_hi,
342 OTI_vec_widen_smult_lo,
343 /* Extract and widen the high/low part of a vector of signed or
344 floating point elements. */
345 OTI_vec_unpacks_hi,
346 OTI_vec_unpacks_lo,
347 /* Extract and widen the high/low part of a vector of unsigned
348 elements. */
349 OTI_vec_unpacku_hi,
350 OTI_vec_unpacku_lo,
351
352 /* Extract, convert to floating point and widen the high/low part of
353 a vector of signed or unsigned integer elements. */
354 OTI_vec_unpacks_float_hi,
355 OTI_vec_unpacks_float_lo,
356 OTI_vec_unpacku_float_hi,
357 OTI_vec_unpacku_float_lo,
358
359 /* Narrow (demote) and merge the elements of two vectors. */
360 OTI_vec_pack_trunc,
361 OTI_vec_pack_usat,
362 OTI_vec_pack_ssat,
363
364 /* Convert to signed/unsigned integer, narrow and merge elements
365 of two vectors of floating point elements. */
366 OTI_vec_pack_sfix_trunc,
367 OTI_vec_pack_ufix_trunc,
368
369 /* Perform a raise to the power of integer. */
370 OTI_powi,
371
372 OTI_MAX
373 };
374
375 extern struct optab optab_table[OTI_MAX];
376
377 #define ssadd_optab (&optab_table[OTI_ssadd])
378 #define usadd_optab (&optab_table[OTI_usadd])
379 #define sssub_optab (&optab_table[OTI_sssub])
380 #define ussub_optab (&optab_table[OTI_ussub])
381 #define ssmul_optab (&optab_table[OTI_ssmul])
382 #define usmul_optab (&optab_table[OTI_usmul])
383 #define ssdiv_optab (&optab_table[OTI_ssdiv])
384 #define usdiv_optab (&optab_table[OTI_usdiv])
385 #define ssneg_optab (&optab_table[OTI_ssneg])
386 #define usneg_optab (&optab_table[OTI_usneg])
387 #define ssashl_optab (&optab_table[OTI_ssashl])
388 #define usashl_optab (&optab_table[OTI_usashl])
389
390 #define add_optab (&optab_table[OTI_add])
391 #define sub_optab (&optab_table[OTI_sub])
392 #define smul_optab (&optab_table[OTI_smul])
393 #define addv_optab (&optab_table[OTI_addv])
394 #define subv_optab (&optab_table[OTI_subv])
395 #define smul_highpart_optab (&optab_table[OTI_smul_highpart])
396 #define umul_highpart_optab (&optab_table[OTI_umul_highpart])
397 #define smul_widen_optab (&optab_table[OTI_smul_widen])
398 #define umul_widen_optab (&optab_table[OTI_umul_widen])
399 #define usmul_widen_optab (&optab_table[OTI_usmul_widen])
400 #define smadd_widen_optab (&optab_table[OTI_smadd_widen])
401 #define umadd_widen_optab (&optab_table[OTI_umadd_widen])
402 #define ssmadd_widen_optab (&optab_table[OTI_ssmadd_widen])
403 #define usmadd_widen_optab (&optab_table[OTI_usmadd_widen])
404 #define smsub_widen_optab (&optab_table[OTI_smsub_widen])
405 #define umsub_widen_optab (&optab_table[OTI_umsub_widen])
406 #define ssmsub_widen_optab (&optab_table[OTI_ssmsub_widen])
407 #define usmsub_widen_optab (&optab_table[OTI_usmsub_widen])
408 #define sdiv_optab (&optab_table[OTI_sdiv])
409 #define smulv_optab (&optab_table[OTI_smulv])
410 #define sdivv_optab (&optab_table[OTI_sdivv])
411 #define sdivmod_optab (&optab_table[OTI_sdivmod])
412 #define udiv_optab (&optab_table[OTI_udiv])
413 #define udivmod_optab (&optab_table[OTI_udivmod])
414 #define smod_optab (&optab_table[OTI_smod])
415 #define umod_optab (&optab_table[OTI_umod])
416 #define fmod_optab (&optab_table[OTI_fmod])
417 #define remainder_optab (&optab_table[OTI_remainder])
418 #define ftrunc_optab (&optab_table[OTI_ftrunc])
419 #define and_optab (&optab_table[OTI_and])
420 #define ior_optab (&optab_table[OTI_ior])
421 #define xor_optab (&optab_table[OTI_xor])
422 #define ashl_optab (&optab_table[OTI_ashl])
423 #define lshr_optab (&optab_table[OTI_lshr])
424 #define ashr_optab (&optab_table[OTI_ashr])
425 #define rotl_optab (&optab_table[OTI_rotl])
426 #define rotr_optab (&optab_table[OTI_rotr])
427 #define vashl_optab (&optab_table[OTI_vashl])
428 #define vlshr_optab (&optab_table[OTI_vlshr])
429 #define vashr_optab (&optab_table[OTI_vashr])
430 #define vrotl_optab (&optab_table[OTI_vrotl])
431 #define vrotr_optab (&optab_table[OTI_vrotr])
432 #define smin_optab (&optab_table[OTI_smin])
433 #define smax_optab (&optab_table[OTI_smax])
434 #define umin_optab (&optab_table[OTI_umin])
435 #define umax_optab (&optab_table[OTI_umax])
436 #define pow_optab (&optab_table[OTI_pow])
437 #define atan2_optab (&optab_table[OTI_atan2])
438
439 #define mov_optab (&optab_table[OTI_mov])
440 #define movstrict_optab (&optab_table[OTI_movstrict])
441 #define movmisalign_optab (&optab_table[OTI_movmisalign])
442 #define storent_optab (&optab_table[OTI_storent])
443
444 #define neg_optab (&optab_table[OTI_neg])
445 #define negv_optab (&optab_table[OTI_negv])
446 #define abs_optab (&optab_table[OTI_abs])
447 #define absv_optab (&optab_table[OTI_absv])
448 #define one_cmpl_optab (&optab_table[OTI_one_cmpl])
449 #define bswap_optab (&optab_table[OTI_bswap])
450 #define ffs_optab (&optab_table[OTI_ffs])
451 #define clz_optab (&optab_table[OTI_clz])
452 #define ctz_optab (&optab_table[OTI_ctz])
453 #define popcount_optab (&optab_table[OTI_popcount])
454 #define parity_optab (&optab_table[OTI_parity])
455 #define sqrt_optab (&optab_table[OTI_sqrt])
456 #define sincos_optab (&optab_table[OTI_sincos])
457 #define sin_optab (&optab_table[OTI_sin])
458 #define asin_optab (&optab_table[OTI_asin])
459 #define cos_optab (&optab_table[OTI_cos])
460 #define acos_optab (&optab_table[OTI_acos])
461 #define exp_optab (&optab_table[OTI_exp])
462 #define exp10_optab (&optab_table[OTI_exp10])
463 #define exp2_optab (&optab_table[OTI_exp2])
464 #define expm1_optab (&optab_table[OTI_expm1])
465 #define ldexp_optab (&optab_table[OTI_ldexp])
466 #define scalb_optab (&optab_table[OTI_scalb])
467 #define logb_optab (&optab_table[OTI_logb])
468 #define ilogb_optab (&optab_table[OTI_ilogb])
469 #define log_optab (&optab_table[OTI_log])
470 #define log10_optab (&optab_table[OTI_log10])
471 #define log2_optab (&optab_table[OTI_log2])
472 #define log1p_optab (&optab_table[OTI_log1p])
473 #define floor_optab (&optab_table[OTI_floor])
474 #define ceil_optab (&optab_table[OTI_ceil])
475 #define btrunc_optab (&optab_table[OTI_btrunc])
476 #define round_optab (&optab_table[OTI_round])
477 #define nearbyint_optab (&optab_table[OTI_nearbyint])
478 #define rint_optab (&optab_table[OTI_rint])
479 #define tan_optab (&optab_table[OTI_tan])
480 #define atan_optab (&optab_table[OTI_atan])
481 #define copysign_optab (&optab_table[OTI_copysign])
482 #define signbit_optab (&optab_table[OTI_signbit])
483 #define isinf_optab (&optab_table[OTI_isinf])
484
485 #define cmp_optab (&optab_table[OTI_cmp])
486 #define ucmp_optab (&optab_table[OTI_ucmp])
487 #define tst_optab (&optab_table[OTI_tst])
488
489 #define eq_optab (&optab_table[OTI_eq])
490 #define ne_optab (&optab_table[OTI_ne])
491 #define gt_optab (&optab_table[OTI_gt])
492 #define ge_optab (&optab_table[OTI_ge])
493 #define lt_optab (&optab_table[OTI_lt])
494 #define le_optab (&optab_table[OTI_le])
495 #define unord_optab (&optab_table[OTI_unord])
496
497 #define strlen_optab (&optab_table[OTI_strlen])
498
499 #define cbranch_optab (&optab_table[OTI_cbranch])
500 #define cmov_optab (&optab_table[OTI_cmov])
501 #define cstore_optab (&optab_table[OTI_cstore])
502 #define push_optab (&optab_table[OTI_push])
503 #define addcc_optab (&optab_table[OTI_addcc])
504
505 #define reduc_smax_optab (&optab_table[OTI_reduc_smax])
506 #define reduc_umax_optab (&optab_table[OTI_reduc_umax])
507 #define reduc_smin_optab (&optab_table[OTI_reduc_smin])
508 #define reduc_umin_optab (&optab_table[OTI_reduc_umin])
509 #define reduc_splus_optab (&optab_table[OTI_reduc_splus])
510 #define reduc_uplus_optab (&optab_table[OTI_reduc_uplus])
511
512 #define ssum_widen_optab (&optab_table[OTI_ssum_widen])
513 #define usum_widen_optab (&optab_table[OTI_usum_widen])
514 #define sdot_prod_optab (&optab_table[OTI_sdot_prod])
515 #define udot_prod_optab (&optab_table[OTI_udot_prod])
516
517 #define vec_set_optab (&optab_table[OTI_vec_set])
518 #define vec_extract_optab (&optab_table[OTI_vec_extract])
519 #define vec_extract_even_optab (&optab_table[OTI_vec_extract_even])
520 #define vec_extract_odd_optab (&optab_table[OTI_vec_extract_odd])
521 #define vec_interleave_high_optab (&optab_table[OTI_vec_interleave_high])
522 #define vec_interleave_low_optab (&optab_table[OTI_vec_interleave_low])
523 #define vec_init_optab (&optab_table[OTI_vec_init])
524 #define vec_shl_optab (&optab_table[OTI_vec_shl])
525 #define vec_shr_optab (&optab_table[OTI_vec_shr])
526 #define vec_realign_load_optab (&optab_table[OTI_vec_realign_load])
527 #define vec_widen_umult_hi_optab (&optab_table[OTI_vec_widen_umult_hi])
528 #define vec_widen_umult_lo_optab (&optab_table[OTI_vec_widen_umult_lo])
529 #define vec_widen_smult_hi_optab (&optab_table[OTI_vec_widen_smult_hi])
530 #define vec_widen_smult_lo_optab (&optab_table[OTI_vec_widen_smult_lo])
531 #define vec_unpacks_hi_optab (&optab_table[OTI_vec_unpacks_hi])
532 #define vec_unpacks_lo_optab (&optab_table[OTI_vec_unpacks_lo])
533 #define vec_unpacku_hi_optab (&optab_table[OTI_vec_unpacku_hi])
534 #define vec_unpacku_lo_optab (&optab_table[OTI_vec_unpacku_lo])
535 #define vec_unpacks_float_hi_optab (&optab_table[OTI_vec_unpacks_float_hi])
536 #define vec_unpacks_float_lo_optab (&optab_table[OTI_vec_unpacks_float_lo])
537 #define vec_unpacku_float_hi_optab (&optab_table[OTI_vec_unpacku_float_hi])
538 #define vec_unpacku_float_lo_optab (&optab_table[OTI_vec_unpacku_float_lo])
539 #define vec_pack_trunc_optab (&optab_table[OTI_vec_pack_trunc])
540 #define vec_pack_ssat_optab (&optab_table[OTI_vec_pack_ssat])
541 #define vec_pack_usat_optab (&optab_table[OTI_vec_pack_usat])
542 #define vec_pack_sfix_trunc_optab (&optab_table[OTI_vec_pack_sfix_trunc])
543 #define vec_pack_ufix_trunc_optab (&optab_table[OTI_vec_pack_ufix_trunc])
544
545 #define powi_optab (&optab_table[OTI_powi])
546
547 /* Conversion optabs have their own table and indexes. */
548 enum convert_optab_index
549 {
550 COI_sext,
551 COI_zext,
552 COI_trunc,
553
554 COI_sfix,
555 COI_ufix,
556
557 COI_sfixtrunc,
558 COI_ufixtrunc,
559
560 COI_sfloat,
561 COI_ufloat,
562
563 COI_lrint,
564 COI_lround,
565 COI_lfloor,
566 COI_lceil,
567
568 COI_fract,
569 COI_fractuns,
570 COI_satfract,
571 COI_satfractuns,
572
573 COI_MAX
574 };
575
576 extern struct convert_optab convert_optab_table[COI_MAX];
577
578 #define sext_optab (&convert_optab_table[COI_sext])
579 #define zext_optab (&convert_optab_table[COI_zext])
580 #define trunc_optab (&convert_optab_table[COI_trunc])
581 #define sfix_optab (&convert_optab_table[COI_sfix])
582 #define ufix_optab (&convert_optab_table[COI_ufix])
583 #define sfixtrunc_optab (&convert_optab_table[COI_sfixtrunc])
584 #define ufixtrunc_optab (&convert_optab_table[COI_ufixtrunc])
585 #define sfloat_optab (&convert_optab_table[COI_sfloat])
586 #define ufloat_optab (&convert_optab_table[COI_ufloat])
587 #define lrint_optab (&convert_optab_table[COI_lrint])
588 #define lround_optab (&convert_optab_table[COI_lround])
589 #define lfloor_optab (&convert_optab_table[COI_lfloor])
590 #define lceil_optab (&convert_optab_table[COI_lceil])
591 #define fract_optab (&convert_optab_table[COI_fract])
592 #define fractuns_optab (&convert_optab_table[COI_fractuns])
593 #define satfract_optab (&convert_optab_table[COI_satfract])
594 #define satfractuns_optab (&convert_optab_table[COI_satfractuns])
595
596 /* These arrays record the insn_code of insns that may be needed to
597 perform input and output reloads of special objects. They provide a
598 place to pass a scratch register. */
599 extern enum insn_code reload_in_optab[NUM_MACHINE_MODES];
600 extern enum insn_code reload_out_optab[NUM_MACHINE_MODES];
601
602 /* Contains the optab used for each rtx code. */
603 extern optab code_to_optab[NUM_RTX_CODE + 1];
604
605
606 typedef rtx (*rtxfun) (rtx);
607
608 /* Indexed by the rtx-code for a conditional (e.g. EQ, LT,...)
609 gives the gen_function to make a branch to test that condition. */
610
611 extern rtxfun bcc_gen_fctn[NUM_RTX_CODE];
612
613 /* Indexed by the rtx-code for a conditional (e.g. EQ, LT,...)
614 gives the insn code to make a store-condition insn
615 to test that condition. */
616
617 extern enum insn_code setcc_gen_code[NUM_RTX_CODE];
618
619 #ifdef HAVE_conditional_move
620 /* Indexed by the machine mode, gives the insn code to make a conditional
621 move insn. */
622
623 extern enum insn_code movcc_gen_code[NUM_MACHINE_MODES];
624 #endif
625
626 /* Indexed by the machine mode, gives the insn code for vector conditional
627 operation. */
628
629 extern enum insn_code vcond_gen_code[NUM_MACHINE_MODES];
630 extern enum insn_code vcondu_gen_code[NUM_MACHINE_MODES];
631
632 /* This array records the insn_code of insns to perform block moves. */
633 extern enum insn_code movmem_optab[NUM_MACHINE_MODES];
634
635 /* This array records the insn_code of insns to perform block sets. */
636 extern enum insn_code setmem_optab[NUM_MACHINE_MODES];
637
638 /* These arrays record the insn_code of two different kinds of insns
639 to perform block compares. */
640 extern enum insn_code cmpstr_optab[NUM_MACHINE_MODES];
641 extern enum insn_code cmpstrn_optab[NUM_MACHINE_MODES];
642 extern enum insn_code cmpmem_optab[NUM_MACHINE_MODES];
643
644 /* Synchronization primitives. This first set is atomic operation for
645 which we don't care about the resulting value. */
646 extern enum insn_code sync_add_optab[NUM_MACHINE_MODES];
647 extern enum insn_code sync_sub_optab[NUM_MACHINE_MODES];
648 extern enum insn_code sync_ior_optab[NUM_MACHINE_MODES];
649 extern enum insn_code sync_and_optab[NUM_MACHINE_MODES];
650 extern enum insn_code sync_xor_optab[NUM_MACHINE_MODES];
651 extern enum insn_code sync_nand_optab[NUM_MACHINE_MODES];
652
653 /* This second set is atomic operations in which we return the value
654 that existed in memory before the operation. */
655 extern enum insn_code sync_old_add_optab[NUM_MACHINE_MODES];
656 extern enum insn_code sync_old_sub_optab[NUM_MACHINE_MODES];
657 extern enum insn_code sync_old_ior_optab[NUM_MACHINE_MODES];
658 extern enum insn_code sync_old_and_optab[NUM_MACHINE_MODES];
659 extern enum insn_code sync_old_xor_optab[NUM_MACHINE_MODES];
660 extern enum insn_code sync_old_nand_optab[NUM_MACHINE_MODES];
661
662 /* This third set is atomic operations in which we return the value
663 that resulted after performing the operation. */
664 extern enum insn_code sync_new_add_optab[NUM_MACHINE_MODES];
665 extern enum insn_code sync_new_sub_optab[NUM_MACHINE_MODES];
666 extern enum insn_code sync_new_ior_optab[NUM_MACHINE_MODES];
667 extern enum insn_code sync_new_and_optab[NUM_MACHINE_MODES];
668 extern enum insn_code sync_new_xor_optab[NUM_MACHINE_MODES];
669 extern enum insn_code sync_new_nand_optab[NUM_MACHINE_MODES];
670
671 /* Atomic compare and swap. */
672 extern enum insn_code sync_compare_and_swap[NUM_MACHINE_MODES];
673 extern enum insn_code sync_compare_and_swap_cc[NUM_MACHINE_MODES];
674
675 /* Atomic exchange with acquire semantics. */
676 extern enum insn_code sync_lock_test_and_set[NUM_MACHINE_MODES];
677
678 /* Atomic clear with release semantics. */
679 extern enum insn_code sync_lock_release[NUM_MACHINE_MODES];
680
681 /* Define functions given in optabs.c. */
682
683 extern rtx expand_widen_pattern_expr (tree exp, rtx op0, rtx op1, rtx wide_op,
684 rtx target, int unsignedp);
685
686 extern rtx expand_ternary_op (enum machine_mode mode, optab ternary_optab,
687 rtx op0, rtx op1, rtx op2, rtx target,
688 int unsignedp);
689
690 /* Expand a binary operation given optab and rtx operands. */
691 extern rtx expand_binop (enum machine_mode, optab, rtx, rtx, rtx, int,
692 enum optab_methods);
693
694 extern bool force_expand_binop (enum machine_mode, optab, rtx, rtx, rtx, int,
695 enum optab_methods);
696
697 /* Expand a binary operation with both signed and unsigned forms. */
698 extern rtx sign_expand_binop (enum machine_mode, optab, optab, rtx, rtx,
699 rtx, int, enum optab_methods);
700
701 /* Generate code to perform an operation on one operand with two results. */
702 extern int expand_twoval_unop (optab, rtx, rtx, rtx, int);
703
704 /* Generate code to perform an operation on two operands with two results. */
705 extern int expand_twoval_binop (optab, rtx, rtx, rtx, rtx, int);
706
707 /* Generate code to perform an operation on two operands with two
708 results, using a library function. */
709 extern bool expand_twoval_binop_libfunc (optab, rtx, rtx, rtx, rtx,
710 enum rtx_code);
711
712 /* Expand a unary arithmetic operation given optab rtx operand. */
713 extern rtx expand_unop (enum machine_mode, optab, rtx, rtx, int);
714
715 /* Expand the absolute value operation. */
716 extern rtx expand_abs_nojump (enum machine_mode, rtx, rtx, int);
717 extern rtx expand_abs (enum machine_mode, rtx, rtx, int, int);
718
719 /* Expand the copysign operation. */
720 extern rtx expand_copysign (rtx, rtx, rtx);
721
722 /* Generate an instruction with a given INSN_CODE with an output and
723 an input. */
724 extern void emit_unop_insn (int, rtx, rtx, enum rtx_code);
725 extern bool maybe_emit_unop_insn (int, rtx, rtx, enum rtx_code);
726
727 /* Emit one rtl insn to compare two rtx's. */
728 extern void emit_cmp_insn (rtx, rtx, enum rtx_code, rtx, enum machine_mode,
729 int);
730
731 /* An extra flag to control optab_for_tree_code's behavior. This is needed to
732 distinguish between machines with a vector shift that takes a scalar for the
733 shift amount vs. machines that take a vector for the shift amount. */
734 enum optab_subtype
735 {
736 optab_default,
737 optab_scalar,
738 optab_vector
739 };
740
741 /* Return the optab used for computing the given operation on the type given by
742 the second argument. The third argument distinguishes between the types of
743 vector shifts and rotates */
744 extern optab optab_for_tree_code (enum tree_code, const_tree, enum optab_subtype);
745
746 /* The various uses that a comparison can have; used by can_compare_p:
747 jumps, conditional moves, store flag operations. */
748 enum can_compare_purpose
749 {
750 ccp_jump,
751 ccp_cmov,
752 ccp_store_flag
753 };
754
755 /* Nonzero if a compare of mode MODE can be done straightforwardly
756 (without splitting it into pieces). */
757 extern int can_compare_p (enum rtx_code, enum machine_mode,
758 enum can_compare_purpose);
759
760 /* Return the INSN_CODE to use for an extend operation. */
761 extern enum insn_code can_extend_p (enum machine_mode, enum machine_mode, int);
762
763 /* Generate the body of an insn to extend Y (with mode MFROM)
764 into X (with mode MTO). Do zero-extension if UNSIGNEDP is nonzero. */
765 extern rtx gen_extend_insn (rtx, rtx, enum machine_mode,
766 enum machine_mode, int);
767
768 /* Call this to reset the function entry for one optab. */
769 extern void set_optab_libfunc (optab, enum machine_mode, const char *);
770 extern void set_conv_libfunc (convert_optab, enum machine_mode,
771 enum machine_mode, const char *);
772
773 /* Generate code for a FIXED_CONVERT_EXPR. */
774 extern void expand_fixed_convert (rtx, rtx, int, int);
775
776 /* Generate code for a FLOAT_EXPR. */
777 extern void expand_float (rtx, rtx, int);
778
779 /* Generate code for a FIX_EXPR. */
780 extern void expand_fix (rtx, rtx, int);
781
782 /* Generate code for float to integral conversion. */
783 extern bool expand_sfix_optab (rtx, rtx, convert_optab);
784
785 /* Return tree if target supports vector operations for COND_EXPR. */
786 bool expand_vec_cond_expr_p (tree, enum machine_mode);
787
788 /* Generate code for VEC_COND_EXPR. */
789 extern rtx expand_vec_cond_expr (tree, rtx);
790
791 /* Generate code for VEC_LSHIFT_EXPR and VEC_RSHIFT_EXPR. */
792 extern rtx expand_vec_shift_expr (tree, rtx);
793
794 #define optab_handler(optab,mode) (&(optab)->handlers[(int) (mode)])
795 #define convert_optab_handler(optab,mode,mode2) \
796 (&(optab)->handlers[(int) (mode)][(int) (mode2)])
797
798 extern rtx optab_libfunc (optab optab, enum machine_mode mode);
799 extern rtx optab_libfunc (optab optab, enum machine_mode mode);
800 extern rtx convert_optab_libfunc (convert_optab optab, enum machine_mode mode1,
801 enum machine_mode mode2);
802 #endif /* GCC_OPTABS_H */