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385399a8 | 1 | /* Tree-based target query functions relating to optabs |
aeee4812 | 2 | Copyright (C) 1987-2023 Free Software Foundation, Inc. |
385399a8 RS |
3 | |
4 | This file is part of GCC. | |
5 | ||
6 | GCC is free software; you can redistribute it and/or modify it under | |
7 | the terms of the GNU General Public License as published by the Free | |
8 | Software Foundation; either version 3, or (at your option) any later | |
9 | version. | |
10 | ||
11 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 | for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GCC; see the file COPYING3. If not see | |
18 | <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | ||
21 | #include "config.h" | |
22 | #include "system.h" | |
23 | #include "coretypes.h" | |
24 | #include "target.h" | |
25 | #include "insn-codes.h" | |
dcd2ca63 | 26 | #include "rtl.h" |
385399a8 | 27 | #include "tree.h" |
dcd2ca63 IL |
28 | #include "memmodel.h" |
29 | #include "optabs.h" | |
385399a8 RS |
30 | #include "optabs-tree.h" |
31 | #include "stor-layout.h" | |
32 | ||
33 | /* Return the optab used for computing the operation given by the tree code, | |
34 | CODE and the tree EXP. This function is not always usable (for example, it | |
35 | cannot give complete results for multiplication or division) but probably | |
36 | ought to be relied on more widely throughout the expander. */ | |
37 | optab | |
38 | optab_for_tree_code (enum tree_code code, const_tree type, | |
39 | enum optab_subtype subtype) | |
40 | { | |
41 | bool trapv; | |
42 | switch (code) | |
43 | { | |
44 | case BIT_AND_EXPR: | |
45 | return and_optab; | |
46 | ||
47 | case BIT_IOR_EXPR: | |
48 | return ior_optab; | |
49 | ||
50 | case BIT_NOT_EXPR: | |
51 | return one_cmpl_optab; | |
52 | ||
53 | case BIT_XOR_EXPR: | |
54 | return xor_optab; | |
55 | ||
56 | case MULT_HIGHPART_EXPR: | |
57 | return TYPE_UNSIGNED (type) ? umul_highpart_optab : smul_highpart_optab; | |
58 | ||
385399a8 RS |
59 | case CEIL_MOD_EXPR: |
60 | case FLOOR_MOD_EXPR: | |
61 | case ROUND_MOD_EXPR: | |
ffc7f200 JJ |
62 | /* {s,u}mod_optab implements TRUNC_MOD_EXPR. For scalar modes, |
63 | expansion has code to adjust TRUNC_MOD_EXPR into the desired other | |
64 | modes, but for vector modes it does not. The adjustment code | |
65 | should be instead emitted in tree-vect-patterns.cc. */ | |
ca2007a9 | 66 | if (VECTOR_TYPE_P (type)) |
ffc7f200 JJ |
67 | return unknown_optab; |
68 | /* FALLTHRU */ | |
69 | case TRUNC_MOD_EXPR: | |
385399a8 RS |
70 | return TYPE_UNSIGNED (type) ? umod_optab : smod_optab; |
71 | ||
385399a8 RS |
72 | case CEIL_DIV_EXPR: |
73 | case FLOOR_DIV_EXPR: | |
74 | case ROUND_DIV_EXPR: | |
ffc7f200 JJ |
75 | /* {,u}{s,u}div_optab implements {TRUNC,EXACT}_DIV_EXPR or RDIV_EXPR. |
76 | For scalar modes, expansion has code to adjust TRUNC_DIV_EXPR | |
77 | into the desired other modes, but for vector modes it does not. | |
78 | The adjustment code should be instead emitted in | |
79 | tree-vect-patterns.cc. */ | |
ca2007a9 | 80 | if (VECTOR_TYPE_P (type)) |
ffc7f200 JJ |
81 | return unknown_optab; |
82 | /* FALLTHRU */ | |
83 | case RDIV_EXPR: | |
84 | case TRUNC_DIV_EXPR: | |
385399a8 RS |
85 | case EXACT_DIV_EXPR: |
86 | if (TYPE_SATURATING (type)) | |
87 | return TYPE_UNSIGNED (type) ? usdiv_optab : ssdiv_optab; | |
88 | return TYPE_UNSIGNED (type) ? udiv_optab : sdiv_optab; | |
89 | ||
90 | case LSHIFT_EXPR: | |
ca2007a9 | 91 | if (VECTOR_TYPE_P (type)) |
385399a8 RS |
92 | { |
93 | if (subtype == optab_vector) | |
94 | return TYPE_SATURATING (type) ? unknown_optab : vashl_optab; | |
95 | ||
96 | gcc_assert (subtype == optab_scalar); | |
97 | } | |
98 | if (TYPE_SATURATING (type)) | |
99 | return TYPE_UNSIGNED (type) ? usashl_optab : ssashl_optab; | |
100 | return ashl_optab; | |
101 | ||
102 | case RSHIFT_EXPR: | |
ca2007a9 | 103 | if (VECTOR_TYPE_P (type)) |
385399a8 RS |
104 | { |
105 | if (subtype == optab_vector) | |
106 | return TYPE_UNSIGNED (type) ? vlshr_optab : vashr_optab; | |
107 | ||
108 | gcc_assert (subtype == optab_scalar); | |
109 | } | |
110 | return TYPE_UNSIGNED (type) ? lshr_optab : ashr_optab; | |
111 | ||
112 | case LROTATE_EXPR: | |
ca2007a9 | 113 | if (VECTOR_TYPE_P (type)) |
385399a8 RS |
114 | { |
115 | if (subtype == optab_vector) | |
116 | return vrotl_optab; | |
117 | ||
118 | gcc_assert (subtype == optab_scalar); | |
119 | } | |
120 | return rotl_optab; | |
121 | ||
122 | case RROTATE_EXPR: | |
ca2007a9 | 123 | if (VECTOR_TYPE_P (type)) |
385399a8 RS |
124 | { |
125 | if (subtype == optab_vector) | |
126 | return vrotr_optab; | |
127 | ||
128 | gcc_assert (subtype == optab_scalar); | |
129 | } | |
130 | return rotr_optab; | |
131 | ||
132 | case MAX_EXPR: | |
133 | return TYPE_UNSIGNED (type) ? umax_optab : smax_optab; | |
134 | ||
135 | case MIN_EXPR: | |
136 | return TYPE_UNSIGNED (type) ? umin_optab : smin_optab; | |
137 | ||
138 | case REALIGN_LOAD_EXPR: | |
139 | return vec_realign_load_optab; | |
140 | ||
141 | case WIDEN_SUM_EXPR: | |
142 | return TYPE_UNSIGNED (type) ? usum_widen_optab : ssum_widen_optab; | |
143 | ||
144 | case DOT_PROD_EXPR: | |
ab0a6b21 TC |
145 | { |
146 | if (subtype == optab_vector_mixed_sign) | |
147 | return usdot_prod_optab; | |
148 | ||
149 | return (TYPE_UNSIGNED (type) ? udot_prod_optab : sdot_prod_optab); | |
150 | } | |
385399a8 RS |
151 | |
152 | case SAD_EXPR: | |
153 | return TYPE_UNSIGNED (type) ? usad_optab : ssad_optab; | |
154 | ||
155 | case WIDEN_MULT_PLUS_EXPR: | |
156 | return (TYPE_UNSIGNED (type) | |
157 | ? (TYPE_SATURATING (type) | |
158 | ? usmadd_widen_optab : umadd_widen_optab) | |
159 | : (TYPE_SATURATING (type) | |
160 | ? ssmadd_widen_optab : smadd_widen_optab)); | |
161 | ||
162 | case WIDEN_MULT_MINUS_EXPR: | |
163 | return (TYPE_UNSIGNED (type) | |
164 | ? (TYPE_SATURATING (type) | |
165 | ? usmsub_widen_optab : umsub_widen_optab) | |
166 | : (TYPE_SATURATING (type) | |
167 | ? ssmsub_widen_optab : smsub_widen_optab)); | |
168 | ||
385399a8 | 169 | case VEC_WIDEN_MULT_HI_EXPR: |
1bda738b JJ |
170 | return (TYPE_UNSIGNED (type) |
171 | ? vec_widen_umult_hi_optab : vec_widen_smult_hi_optab); | |
385399a8 RS |
172 | |
173 | case VEC_WIDEN_MULT_LO_EXPR: | |
1bda738b JJ |
174 | return (TYPE_UNSIGNED (type) |
175 | ? vec_widen_umult_lo_optab : vec_widen_smult_lo_optab); | |
385399a8 RS |
176 | |
177 | case VEC_WIDEN_MULT_EVEN_EXPR: | |
1bda738b JJ |
178 | return (TYPE_UNSIGNED (type) |
179 | ? vec_widen_umult_even_optab : vec_widen_smult_even_optab); | |
385399a8 RS |
180 | |
181 | case VEC_WIDEN_MULT_ODD_EXPR: | |
1bda738b JJ |
182 | return (TYPE_UNSIGNED (type) |
183 | ? vec_widen_umult_odd_optab : vec_widen_smult_odd_optab); | |
385399a8 RS |
184 | |
185 | case VEC_WIDEN_LSHIFT_HI_EXPR: | |
1bda738b JJ |
186 | return (TYPE_UNSIGNED (type) |
187 | ? vec_widen_ushiftl_hi_optab : vec_widen_sshiftl_hi_optab); | |
385399a8 RS |
188 | |
189 | case VEC_WIDEN_LSHIFT_LO_EXPR: | |
1bda738b JJ |
190 | return (TYPE_UNSIGNED (type) |
191 | ? vec_widen_ushiftl_lo_optab : vec_widen_sshiftl_lo_optab); | |
385399a8 RS |
192 | |
193 | case VEC_UNPACK_HI_EXPR: | |
1bda738b JJ |
194 | return (TYPE_UNSIGNED (type) |
195 | ? vec_unpacku_hi_optab : vec_unpacks_hi_optab); | |
385399a8 RS |
196 | |
197 | case VEC_UNPACK_LO_EXPR: | |
1bda738b JJ |
198 | return (TYPE_UNSIGNED (type) |
199 | ? vec_unpacku_lo_optab : vec_unpacks_lo_optab); | |
385399a8 RS |
200 | |
201 | case VEC_UNPACK_FLOAT_HI_EXPR: | |
202 | /* The signedness is determined from input operand. */ | |
1bda738b JJ |
203 | return (TYPE_UNSIGNED (type) |
204 | ? vec_unpacku_float_hi_optab : vec_unpacks_float_hi_optab); | |
385399a8 RS |
205 | |
206 | case VEC_UNPACK_FLOAT_LO_EXPR: | |
207 | /* The signedness is determined from input operand. */ | |
1bda738b JJ |
208 | return (TYPE_UNSIGNED (type) |
209 | ? vec_unpacku_float_lo_optab : vec_unpacks_float_lo_optab); | |
210 | ||
211 | case VEC_UNPACK_FIX_TRUNC_HI_EXPR: | |
212 | /* The signedness is determined from output operand. */ | |
213 | return (TYPE_UNSIGNED (type) | |
214 | ? vec_unpack_ufix_trunc_hi_optab | |
215 | : vec_unpack_sfix_trunc_hi_optab); | |
216 | ||
217 | case VEC_UNPACK_FIX_TRUNC_LO_EXPR: | |
218 | /* The signedness is determined from output operand. */ | |
219 | return (TYPE_UNSIGNED (type) | |
220 | ? vec_unpack_ufix_trunc_lo_optab | |
221 | : vec_unpack_sfix_trunc_lo_optab); | |
385399a8 RS |
222 | |
223 | case VEC_PACK_TRUNC_EXPR: | |
224 | return vec_pack_trunc_optab; | |
225 | ||
226 | case VEC_PACK_SAT_EXPR: | |
227 | return TYPE_UNSIGNED (type) ? vec_pack_usat_optab : vec_pack_ssat_optab; | |
228 | ||
229 | case VEC_PACK_FIX_TRUNC_EXPR: | |
230 | /* The signedness is determined from output operand. */ | |
1bda738b JJ |
231 | return (TYPE_UNSIGNED (type) |
232 | ? vec_pack_ufix_trunc_optab : vec_pack_sfix_trunc_optab); | |
233 | ||
234 | case VEC_PACK_FLOAT_EXPR: | |
235 | /* The signedness is determined from input operand. */ | |
236 | return (TYPE_UNSIGNED (type) | |
237 | ? vec_packu_float_optab : vec_packs_float_optab); | |
385399a8 | 238 | |
be4c1d4a RS |
239 | case VEC_DUPLICATE_EXPR: |
240 | return vec_duplicate_optab; | |
241 | ||
9adab579 RS |
242 | case VEC_SERIES_EXPR: |
243 | return vec_series_optab; | |
244 | ||
385399a8 RS |
245 | default: |
246 | break; | |
247 | } | |
248 | ||
249 | trapv = INTEGRAL_TYPE_P (type) && TYPE_OVERFLOW_TRAPS (type); | |
250 | switch (code) | |
251 | { | |
252 | case POINTER_PLUS_EXPR: | |
253 | case PLUS_EXPR: | |
254 | if (TYPE_SATURATING (type)) | |
255 | return TYPE_UNSIGNED (type) ? usadd_optab : ssadd_optab; | |
256 | return trapv ? addv_optab : add_optab; | |
257 | ||
1af4ebf5 | 258 | case POINTER_DIFF_EXPR: |
385399a8 RS |
259 | case MINUS_EXPR: |
260 | if (TYPE_SATURATING (type)) | |
261 | return TYPE_UNSIGNED (type) ? ussub_optab : sssub_optab; | |
262 | return trapv ? subv_optab : sub_optab; | |
263 | ||
264 | case MULT_EXPR: | |
265 | if (TYPE_SATURATING (type)) | |
266 | return TYPE_UNSIGNED (type) ? usmul_optab : ssmul_optab; | |
267 | return trapv ? smulv_optab : smul_optab; | |
268 | ||
269 | case NEGATE_EXPR: | |
270 | if (TYPE_SATURATING (type)) | |
271 | return TYPE_UNSIGNED (type) ? usneg_optab : ssneg_optab; | |
272 | return trapv ? negv_optab : neg_optab; | |
273 | ||
274 | case ABS_EXPR: | |
275 | return trapv ? absv_optab : abs_optab; | |
276 | ||
e197e64e KV |
277 | case ABSU_EXPR: |
278 | return abs_optab; | |
385399a8 RS |
279 | default: |
280 | return unknown_optab; | |
281 | } | |
282 | } | |
283 | ||
4af29981 JH |
284 | /* Check whether an operation represented by CODE is a 'half' widening operation |
285 | in which the input vector type has half the number of bits of the output | |
286 | vector type e.g. V8QI->V8HI. | |
287 | ||
288 | This is handled by widening the inputs using NOP_EXPRs then using a | |
289 | non-widening stmt e.g. MINUS_EXPR. RTL fusing converts these to the widening | |
290 | hardware instructions if supported. | |
291 | ||
292 | The more typical case (handled in supportable_widening_operation) is where | |
293 | the input vector type has the same number of bits as the output vector type. | |
294 | In this case half the elements of the input vectors must be processed at a | |
295 | time into respective vector outputs with elements twice as wide i.e. a | |
296 | 'hi'/'lo' pair using codes such as VEC_WIDEN_MINUS_HI/LO. | |
297 | ||
298 | Supported widening operations: | |
4af29981 JH |
299 | WIDEN_MULT_EXPR |
300 | WIDEN_LSHIFT_EXPR | |
301 | ||
302 | Output: | |
303 | - CODE1 - The non-widened code, which will be used after the inputs are | |
304 | converted to the wide type. */ | |
305 | bool | |
306 | supportable_half_widening_operation (enum tree_code code, tree vectype_out, | |
307 | tree vectype_in, enum tree_code *code1) | |
308 | { | |
309 | machine_mode m1,m2; | |
310 | enum tree_code dummy_code; | |
311 | optab op; | |
312 | ||
313 | gcc_assert (VECTOR_TYPE_P (vectype_out) && VECTOR_TYPE_P (vectype_in)); | |
314 | ||
315 | m1 = TYPE_MODE (vectype_out); | |
316 | m2 = TYPE_MODE (vectype_in); | |
317 | ||
318 | if (!VECTOR_MODE_P (m1) || !VECTOR_MODE_P (m2)) | |
319 | return false; | |
320 | ||
321 | if (maybe_ne (TYPE_VECTOR_SUBPARTS (vectype_in), | |
322 | TYPE_VECTOR_SUBPARTS (vectype_out))) | |
323 | return false; | |
324 | ||
325 | switch (code) | |
326 | { | |
327 | case WIDEN_LSHIFT_EXPR: | |
328 | *code1 = LSHIFT_EXPR; | |
329 | break; | |
4af29981 JH |
330 | case WIDEN_MULT_EXPR: |
331 | *code1 = MULT_EXPR; | |
332 | break; | |
333 | default: | |
334 | return false; | |
335 | } | |
336 | ||
337 | if (!supportable_convert_operation (NOP_EXPR, vectype_out, vectype_in, | |
338 | &dummy_code)) | |
339 | return false; | |
340 | ||
341 | op = optab_for_tree_code (*code1, vectype_out, optab_vector); | |
342 | return (optab_handler (op, TYPE_MODE (vectype_out)) != CODE_FOR_nothing); | |
343 | } | |
344 | ||
385399a8 RS |
345 | /* Function supportable_convert_operation |
346 | ||
347 | Check whether an operation represented by the code CODE is a | |
348 | convert operation that is supported by the target platform in | |
349 | vector form (i.e., when operating on arguments of type VECTYPE_IN | |
350 | producing a result of type VECTYPE_OUT). | |
351 | ||
352 | Convert operations we currently support directly are FIX_TRUNC and FLOAT. | |
353 | This function checks if these operations are supported | |
477daf83 | 354 | by the target platform directly (via vector tree-codes). |
385399a8 RS |
355 | |
356 | Output: | |
357 | - CODE1 is code of vector operation to be used when | |
477daf83 | 358 | vectorizing the operation, if available. */ |
385399a8 RS |
359 | |
360 | bool | |
361 | supportable_convert_operation (enum tree_code code, | |
362 | tree vectype_out, tree vectype_in, | |
477daf83 | 363 | enum tree_code *code1) |
385399a8 RS |
364 | { |
365 | machine_mode m1,m2; | |
366 | bool truncp; | |
367 | ||
b6268016 RS |
368 | gcc_assert (VECTOR_TYPE_P (vectype_out) && VECTOR_TYPE_P (vectype_in)); |
369 | ||
385399a8 RS |
370 | m1 = TYPE_MODE (vectype_out); |
371 | m2 = TYPE_MODE (vectype_in); | |
372 | ||
b6268016 RS |
373 | if (!VECTOR_MODE_P (m1) || !VECTOR_MODE_P (m2)) |
374 | return false; | |
375 | ||
385399a8 RS |
376 | /* First check if we can done conversion directly. */ |
377 | if ((code == FIX_TRUNC_EXPR | |
378 | && can_fix_p (m1,m2,TYPE_UNSIGNED (vectype_out), &truncp) | |
379 | != CODE_FOR_nothing) | |
380 | || (code == FLOAT_EXPR | |
381 | && can_float_p (m1,m2,TYPE_UNSIGNED (vectype_in)) | |
382 | != CODE_FOR_nothing)) | |
383 | { | |
384 | *code1 = code; | |
385 | return true; | |
386 | } | |
387 | ||
9c437a10 RS |
388 | if (GET_MODE_UNIT_PRECISION (m1) > GET_MODE_UNIT_PRECISION (m2) |
389 | && can_extend_p (m1, m2, TYPE_UNSIGNED (vectype_in))) | |
390 | { | |
391 | *code1 = code; | |
392 | return true; | |
393 | } | |
394 | ||
395 | if (GET_MODE_UNIT_PRECISION (m1) < GET_MODE_UNIT_PRECISION (m2) | |
396 | && convert_optab_handler (trunc_optab, m1, m2) != CODE_FOR_nothing) | |
397 | { | |
398 | *code1 = code; | |
399 | return true; | |
400 | } | |
401 | ||
385399a8 RS |
402 | return false; |
403 | } | |
404 | ||
3940daff IL |
405 | /* Return true iff vec_cmp_optab/vec_cmpu_optab can handle a vector comparison |
406 | for code CODE, comparing operands of type VALUE_TYPE and producing a result | |
407 | of type MASK_TYPE. */ | |
408 | ||
409 | static bool | |
410 | vec_cmp_icode_p (tree value_type, tree mask_type, enum tree_code code) | |
411 | { | |
412 | enum rtx_code rcode = get_rtx_code_1 (code, TYPE_UNSIGNED (value_type)); | |
413 | if (rcode == UNKNOWN) | |
414 | return false; | |
415 | ||
416 | return can_vec_cmp_compare_p (rcode, TYPE_MODE (value_type), | |
417 | TYPE_MODE (mask_type)); | |
418 | } | |
419 | ||
420 | /* Return true iff vec_cmpeq_optab can handle a vector comparison for code | |
421 | CODE, comparing operands of type VALUE_TYPE and producing a result of type | |
422 | MASK_TYPE. */ | |
423 | ||
424 | static bool | |
425 | vec_cmp_eq_icode_p (tree value_type, tree mask_type, enum tree_code code) | |
426 | { | |
427 | if (code != EQ_EXPR && code != NE_EXPR) | |
428 | return false; | |
429 | ||
430 | return get_vec_cmp_eq_icode (TYPE_MODE (value_type), TYPE_MODE (mask_type)) | |
431 | != CODE_FOR_nothing; | |
432 | } | |
433 | ||
42fd8198 IE |
434 | /* Return TRUE if appropriate vector insn is available |
435 | for vector comparison expr with vector type VALUE_TYPE | |
436 | and resulting mask with MASK_TYPE. */ | |
437 | ||
438 | bool | |
96592eed | 439 | expand_vec_cmp_expr_p (tree value_type, tree mask_type, enum tree_code code) |
42fd8198 | 440 | { |
3940daff IL |
441 | return vec_cmp_icode_p (value_type, mask_type, code) |
442 | || vec_cmp_eq_icode_p (value_type, mask_type, code); | |
42fd8198 IE |
443 | } |
444 | ||
dcd2ca63 IL |
445 | /* Return true iff vcond_optab/vcondu_optab can handle a vector |
446 | comparison for code CODE, comparing operands of type CMP_OP_TYPE and | |
447 | producing a result of type VALUE_TYPE. */ | |
448 | ||
449 | static bool | |
450 | vcond_icode_p (tree value_type, tree cmp_op_type, enum tree_code code) | |
451 | { | |
3940daff IL |
452 | enum rtx_code rcode = get_rtx_code_1 (code, TYPE_UNSIGNED (cmp_op_type)); |
453 | if (rcode == UNKNOWN) | |
454 | return false; | |
455 | ||
456 | return can_vcond_compare_p (rcode, TYPE_MODE (value_type), | |
457 | TYPE_MODE (cmp_op_type)); | |
dcd2ca63 IL |
458 | } |
459 | ||
460 | /* Return true iff vcondeq_optab can handle a vector comparison for code CODE, | |
461 | comparing operands of type CMP_OP_TYPE and producing a result of type | |
462 | VALUE_TYPE. */ | |
463 | ||
464 | static bool | |
465 | vcond_eq_icode_p (tree value_type, tree cmp_op_type, enum tree_code code) | |
466 | { | |
467 | if (code != EQ_EXPR && code != NE_EXPR) | |
468 | return false; | |
469 | ||
470 | return get_vcond_eq_icode (TYPE_MODE (value_type), TYPE_MODE (cmp_op_type)) | |
471 | != CODE_FOR_nothing; | |
472 | } | |
473 | ||
385399a8 RS |
474 | /* Return TRUE iff, appropriate vector insns are available |
475 | for vector cond expr with vector type VALUE_TYPE and a comparison | |
476 | with operand vector types in CMP_OP_TYPE. */ | |
477 | ||
478 | bool | |
96592eed | 479 | expand_vec_cond_expr_p (tree value_type, tree cmp_op_type, enum tree_code code) |
385399a8 RS |
480 | { |
481 | machine_mode value_mode = TYPE_MODE (value_type); | |
482 | machine_mode cmp_op_mode = TYPE_MODE (cmp_op_type); | |
0d99886f AP |
483 | if (VECTOR_BOOLEAN_TYPE_P (cmp_op_type) |
484 | && get_vcond_mask_icode (TYPE_MODE (value_type), | |
485 | TYPE_MODE (cmp_op_type)) != CODE_FOR_nothing) | |
486 | return true; | |
487 | ||
e29dd0eb | 488 | if (maybe_ne (GET_MODE_NUNITS (value_mode), GET_MODE_NUNITS (cmp_op_mode))) |
385399a8 | 489 | return false; |
96592eed | 490 | |
dcd2ca63 IL |
491 | if (TREE_CODE_CLASS (code) != tcc_comparison) |
492 | /* This may happen, for example, if code == SSA_NAME, in which case we | |
493 | cannot be certain whether a vector insn is available. */ | |
96592eed JJ |
494 | return false; |
495 | ||
dcd2ca63 IL |
496 | return vcond_icode_p (value_type, cmp_op_type, code) |
497 | || vcond_eq_icode_p (value_type, cmp_op_type, code); | |
385399a8 RS |
498 | } |
499 | ||
500 | /* Use the current target and options to initialize | |
501 | TREE_OPTIMIZATION_OPTABS (OPTNODE). */ | |
502 | ||
503 | void | |
504 | init_tree_optimization_optabs (tree optnode) | |
505 | { | |
506 | /* Quick exit if we have already computed optabs for this target. */ | |
507 | if (TREE_OPTIMIZATION_BASE_OPTABS (optnode) == this_target_optabs) | |
508 | return; | |
509 | ||
510 | /* Forget any previous information and set up for the current target. */ | |
511 | TREE_OPTIMIZATION_BASE_OPTABS (optnode) = this_target_optabs; | |
512 | struct target_optabs *tmp_optabs = (struct target_optabs *) | |
513 | TREE_OPTIMIZATION_OPTABS (optnode); | |
514 | if (tmp_optabs) | |
515 | memset (tmp_optabs, 0, sizeof (struct target_optabs)); | |
516 | else | |
bfaa08b7 | 517 | tmp_optabs = ggc_cleared_alloc<target_optabs> (); |
385399a8 RS |
518 | |
519 | /* Generate a new set of optabs into tmp_optabs. */ | |
520 | init_all_optabs (tmp_optabs); | |
521 | ||
522 | /* If the optabs changed, record it. */ | |
523 | if (memcmp (tmp_optabs, this_target_optabs, sizeof (struct target_optabs))) | |
524 | TREE_OPTIMIZATION_OPTABS (optnode) = tmp_optabs; | |
525 | else | |
526 | { | |
527 | TREE_OPTIMIZATION_OPTABS (optnode) = NULL; | |
528 | ggc_free (tmp_optabs); | |
529 | } | |
530 | } | |
71f82be9 JG |
531 | |
532 | /* Return TRUE if the target has support for vector right shift of an | |
533 | operand of type TYPE. If OT_TYPE is OPTAB_DEFAULT, check for existence | |
534 | of a shift by either a scalar or a vector. Otherwise, check only | |
535 | for a shift that matches OT_TYPE. */ | |
536 | ||
537 | bool | |
538 | target_supports_op_p (tree type, enum tree_code code, | |
539 | enum optab_subtype ot_subtype) | |
540 | { | |
541 | optab ot = optab_for_tree_code (code, type, ot_subtype); | |
542 | return (ot != unknown_optab | |
543 | && optab_handler (ot, TYPE_MODE (type)) != CODE_FOR_nothing); | |
544 | } | |
545 |