1 ;; Predicate definitions for LoongArch target.
2 ;; Copyright (C)
2021-
2023 Free Software Foundation, Inc.
3 ;; Contributed by Loongson Ltd.
4 ;; Based on MIPS target for GNU compiler.
6 ;; This file is part of GCC.
8 ;; GCC is free software; you can redistribute it and/or modify
9 ;; it under the terms of the GNU General Public License as published by
10 ;; the Free Software Foundation; either version
3, or (at your option)
13 ;; GCC is distributed in the hope that it will be useful,
14 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
15 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 ;; GNU General Public License for more details.
18 ;; You should have received a copy of the GNU General Public License
19 ;; along with GCC; see the file COPYING3. If not see
20 ;; <http://www.gnu.org/licenses/>.
22 (define_predicate "const_uns_arith_operand"
23 (and (match_code "const_int")
24 (match_test "IMM12_OPERAND_UNSIGNED (INTVAL (op))")))
26 (define_predicate "uns_arith_operand"
27 (ior (match_operand
0 "const_uns_arith_operand")
28 (match_operand
0 "register_operand")))
30 (define_predicate "const_lu32i_operand"
31 (and (match_code "const_int")
32 (match_test "LU32I_OPERAND (INTVAL (op))")))
34 (define_predicate "const_lu52i_operand"
35 (and (match_code "const_int")
36 (match_test "LU52I_OPERAND (INTVAL (op))")))
38 (define_predicate "const_arith_operand"
39 (and (match_code "const_int")
40 (match_test "IMM12_OPERAND (INTVAL (op))")))
42 (define_predicate "const_dual_imm12_operand"
43 (and (match_code "const_int")
44 (match_test "DUAL_IMM12_OPERAND (INTVAL (op))")))
46 (define_predicate "const_imm16_operand"
47 (and (match_code "const_int")
48 (match_test "IMM16_OPERAND (INTVAL (op))")))
50 (define_predicate "const_addu16i_operand"
51 (and (match_code "const_int")
52 (match_test "ADDU16I_OPERAND (INTVAL (op))")))
54 (define_predicate "const_addu16i_imm12_di_operand"
55 (and (match_code "const_int")
56 (match_test "loongarch_addu16i_imm12_operand_p (INTVAL (op), DImode)")))
58 (define_predicate "const_addu16i_imm12_si_operand"
59 (and (match_code "const_int")
60 (match_test "loongarch_addu16i_imm12_operand_p (INTVAL (op), SImode)")))
62 (define_predicate "const_dual_addu16i_operand"
63 (and (match_code "const_int")
64 (match_test "DUAL_ADDU16I_OPERAND (INTVAL (op))")))
66 (define_predicate "arith_operand"
67 (ior (match_operand
0 "const_arith_operand")
68 (match_operand
0 "register_operand")))
70 (define_predicate "plus_di_operand"
71 (ior (match_operand
0 "arith_operand")
72 (match_operand
0 "const_dual_imm12_operand")
73 (match_operand
0 "const_addu16i_operand")
74 (match_operand
0 "const_addu16i_imm12_di_operand")
75 (match_operand
0 "const_dual_addu16i_operand")))
77 (define_predicate "plus_si_extend_operand"
78 (ior (match_operand
0 "arith_operand")
79 (match_operand
0 "const_dual_imm12_operand")
80 (match_operand
0 "const_addu16i_imm12_si_operand")))
82 (define_predicate "plus_si_operand"
83 (ior (match_operand
0 "plus_si_extend_operand")
84 (match_operand
0 "const_addu16i_operand")))
86 (define_predicate "const_immalsl_operand"
87 (and (match_code "const_int")
88 (match_test "IN_RANGE (INTVAL (op),
1,
4)")))
90 (define_predicate "const_lsx_branch_operand"
91 (and (match_code "const_int")
92 (match_test "IN_RANGE (INTVAL (op), -
1024,
1023)")))
94 (define_predicate "const_uimm3_operand"
95 (and (match_code "const_int")
96 (match_test "IN_RANGE (INTVAL (op),
0,
7)")))
98 (define_predicate "const_8_to_11_operand"
99 (and (match_code "const_int")
100 (match_test "IN_RANGE (INTVAL (op),
8,
11)")))
102 (define_predicate "const_12_to_15_operand"
103 (and (match_code "const_int")
104 (match_test "IN_RANGE (INTVAL (op),
12,
15)")))
106 (define_predicate "const_uimm4_operand"
107 (and (match_code "const_int")
108 (match_test "IN_RANGE (INTVAL (op),
0,
15)")))
110 (define_predicate "const_uimm5_operand"
111 (and (match_code "const_int")
112 (match_test "IN_RANGE (INTVAL (op),
0,
31)")))
114 (define_predicate "const_uimm6_operand"
115 (and (match_code "const_int")
116 (match_test "UIMM6_OPERAND (INTVAL (op))")))
118 (define_predicate "const_uimm7_operand"
119 (and (match_code "const_int")
120 (match_test "IN_RANGE (INTVAL (op),
0,
127)")))
122 (define_predicate "const_uimm8_operand"
123 (and (match_code "const_int")
124 (match_test "IN_RANGE (INTVAL (op),
0,
255)")))
126 (define_predicate "const_uimm14_operand"
127 (and (match_code "const_int")
128 (match_test "IN_RANGE (INTVAL (op),
0,
16383)")))
130 (define_predicate "const_uimm15_operand"
131 (and (match_code "const_int")
132 (match_test "IN_RANGE (INTVAL (op),
0,
32767)")))
134 (define_predicate "const_imm5_operand"
135 (and (match_code "const_int")
136 (match_test "IN_RANGE (INTVAL (op), -
16,
15)")))
138 (define_predicate "const_imm10_operand"
139 (and (match_code "const_int")
140 (match_test "IMM10_OPERAND (INTVAL (op))")))
142 (define_predicate "const_imm12_operand"
143 (and (match_code "const_int")
144 (match_test "IMM12_OPERAND (INTVAL (op))")))
146 (define_predicate "const_imm13_operand"
147 (and (match_code "const_int")
148 (match_test "IMM13_OPERAND (INTVAL (op))")))
150 (define_predicate "reg_imm10_operand"
151 (ior (match_operand
0 "const_imm10_operand")
152 (match_operand
0 "register_operand")))
154 (define_predicate "aq8b_operand"
155 (and (match_code "const_int")
156 (match_test "loongarch_signed_immediate_p (INTVAL (op),
8,
0)")))
158 (define_predicate "aq8h_operand"
159 (and (match_code "const_int")
160 (match_test "loongarch_signed_immediate_p (INTVAL (op),
8,
1)")))
162 (define_predicate "aq8w_operand"
163 (and (match_code "const_int")
164 (match_test "loongarch_signed_immediate_p (INTVAL (op),
8,
2)")))
166 (define_predicate "aq8d_operand"
167 (and (match_code "const_int")
168 (match_test "loongarch_signed_immediate_p (INTVAL (op),
8,
3)")))
170 (define_predicate "aq10b_operand"
171 (and (match_code "const_int")
172 (match_test "loongarch_signed_immediate_p (INTVAL (op),
10,
0)")))
174 (define_predicate "aq10h_operand"
175 (and (match_code "const_int")
176 (match_test "loongarch_signed_immediate_p (INTVAL (op),
10,
1)")))
178 (define_predicate "aq10w_operand"
179 (and (match_code "const_int")
180 (match_test "loongarch_signed_immediate_p (INTVAL (op),
10,
2)")))
182 (define_predicate "aq10d_operand"
183 (and (match_code "const_int")
184 (match_test "loongarch_signed_immediate_p (INTVAL (op),
10,
3)")))
186 (define_predicate "aq12b_operand"
187 (and (match_code "const_int")
188 (match_test "loongarch_signed_immediate_p (INTVAL (op),
12,
0)")))
190 (define_predicate "aq12h_operand"
191 (and (match_code "const_int")
192 (match_test "loongarch_signed_immediate_p (INTVAL (op),
11,
1)")))
194 (define_predicate "aq12w_operand"
195 (and (match_code "const_int")
196 (match_test "loongarch_signed_immediate_p (INTVAL (op),
10,
2)")))
198 (define_predicate "aq12d_operand"
199 (and (match_code "const_int")
200 (match_test "loongarch_signed_immediate_p (INTVAL (op),
9,
3)")))
202 (define_predicate "sle_operand"
203 (and (match_code "const_int")
204 (match_test "IMM12_OPERAND (INTVAL (op) +
1)")))
206 (define_predicate "sleu_operand"
207 (and (match_operand
0 "sle_operand")
208 (match_test "INTVAL (op) +
1 !=
0")))
210 (define_predicate "const_0_operand"
211 (and (match_code "const_int,const_wide_int,const_double,const_vector")
212 (match_test "op == CONST0_RTX (GET_MODE (op))")))
214 (define_predicate "const_m1_operand"
215 (and (match_code "const_int,const_wide_int,const_double,const_vector")
216 (match_test "op == CONSTM1_RTX (GET_MODE (op))")))
218 (define_predicate "reg_or_m1_operand"
219 (ior (match_operand
0 "const_m1_operand")
220 (match_operand
0 "register_operand")))
222 (define_predicate "reg_or_0_operand"
223 (ior (match_operand
0 "const_0_operand")
224 (match_operand
0 "register_operand")))
226 (define_predicate "const_1_operand"
227 (and (match_code "const_int,const_wide_int,const_double,const_vector")
228 (match_test "op == CONST1_RTX (GET_MODE (op))")))
230 (define_predicate "reg_or_1_operand"
231 (ior (match_operand
0 "const_1_operand")
232 (match_operand
0 "register_operand")))
234 ;; These are used in vec_merge, hence accept bitmask as const_int.
235 (define_predicate "const_exp_2_operand"
236 (and (match_code "const_int")
237 (match_test "IN_RANGE (exact_log2 (INTVAL (op)),
0,
1)")))
239 (define_predicate "const_exp_4_operand"
240 (and (match_code "const_int")
241 (match_test "IN_RANGE (exact_log2 (INTVAL (op)),
0,
3)")))
243 (define_predicate "const_exp_8_operand"
244 (and (match_code "const_int")
245 (match_test "IN_RANGE (exact_log2 (INTVAL (op)),
0,
7)")))
247 (define_predicate "const_exp_16_operand"
248 (and (match_code "const_int")
249 (match_test "IN_RANGE (exact_log2 (INTVAL (op)),
0,
15)")))
251 (define_predicate "const_exp_32_operand"
252 (and (match_code "const_int")
253 (match_test "IN_RANGE (exact_log2 (INTVAL (op)),
0,
31)")))
255 ;; This is used for indexing into vectors, and hence only accepts const_int.
256 (define_predicate "const_0_or_1_operand"
257 (and (match_code "const_int")
258 (match_test "IN_RANGE (INTVAL (op),
0,
1)")))
260 (define_predicate "const_0_to_3_operand"
261 (and (match_code "const_int")
262 (match_test "IN_RANGE (INTVAL (op),
0,
3)")))
264 (define_predicate "const_0_to_7_operand"
265 (and (match_code "const_int")
266 (match_test "IN_RANGE (INTVAL (op),
0,
7)")))
268 (define_predicate "const_2_or_3_operand"
269 (and (match_code "const_int")
270 (match_test "IN_RANGE (INTVAL (op),
2,
3)")))
272 (define_predicate "const_4_to_7_operand"
273 (and (match_code "const_int")
274 (match_test "IN_RANGE (INTVAL (op),
4,
7)")))
276 (define_predicate "const_8_to_15_operand"
277 (and (match_code "const_int")
278 (match_test "IN_RANGE (INTVAL (op),
0,
7)")))
280 (define_predicate "const_16_to_31_operand"
281 (and (match_code "const_int")
282 (match_test "IN_RANGE (INTVAL (op),
0,
7)")))
284 (define_predicate "qi_mask_operand"
285 (and (match_code "const_int")
286 (match_test "UINTVAL (op) ==
0xff")))
288 (define_predicate "hi_mask_operand"
289 (and (match_code "const_int")
290 (match_test "UINTVAL (op) ==
0xffff")))
292 (define_predicate "lu52i_mask_operand"
293 (and (match_code "const_int")
294 (match_test "UINTVAL (op) ==
0xfffffffffffff")))
296 (define_predicate "si_mask_operand"
297 (and (match_code "const_int")
298 (match_test "UINTVAL (op) ==
0xffffffff")))
300 (define_predicate "low_bitmask_operand"
301 (and (match_code "const_int")
302 (match_test "low_bitmask_len (mode, INTVAL (op)) >
12")))
304 (define_predicate "d_operand"
305 (and (match_code "reg")
306 (match_test "GP_REG_P (REGNO (op))")))
308 (define_predicate "db4_operand"
309 (and (match_code "const_int")
310 (match_test "loongarch_unsigned_immediate_p (INTVAL (op) +
1,
4,
0)")))
312 (define_predicate "db7_operand"
313 (and (match_code "const_int")
314 (match_test "loongarch_unsigned_immediate_p (INTVAL (op) +
1,
7,
0)")))
316 (define_predicate "db8_operand"
317 (and (match_code "const_int")
318 (match_test "loongarch_unsigned_immediate_p (INTVAL (op) +
1,
8,
0)")))
320 (define_predicate "ib3_operand"
321 (and (match_code "const_int")
322 (match_test "loongarch_unsigned_immediate_p (INTVAL (op) -
1,
3,
0)")))
324 (define_predicate "sb4_operand"
325 (and (match_code "const_int")
326 (match_test "loongarch_signed_immediate_p (INTVAL (op),
4,
0)")))
328 (define_predicate "sb5_operand"
329 (and (match_code "const_int")
330 (match_test "loongarch_signed_immediate_p (INTVAL (op),
5,
0)")))
332 (define_predicate "sb8_operand"
333 (and (match_code "const_int")
334 (match_test "loongarch_signed_immediate_p (INTVAL (op),
8,
0)")))
336 (define_predicate "sd8_operand"
337 (and (match_code "const_int")
338 (match_test "loongarch_signed_immediate_p (INTVAL (op),
8,
3)")))
340 (define_predicate "ub4_operand"
341 (and (match_code "const_int")
342 (match_test "loongarch_unsigned_immediate_p (INTVAL (op),
4,
0)")))
344 (define_predicate "ub8_operand"
345 (and (match_code "const_int")
346 (match_test "loongarch_unsigned_immediate_p (INTVAL (op),
8,
0)")))
348 (define_predicate "uh4_operand"
349 (and (match_code "const_int")
350 (match_test "loongarch_unsigned_immediate_p (INTVAL (op),
4,
1)")))
352 (define_predicate "uw4_operand"
353 (and (match_code "const_int")
354 (match_test "loongarch_unsigned_immediate_p (INTVAL (op),
4,
2)")))
356 (define_predicate "uw5_operand"
357 (and (match_code "const_int")
358 (match_test "loongarch_unsigned_immediate_p (INTVAL (op),
5,
2)")))
360 (define_predicate "uw6_operand"
361 (and (match_code "const_int")
362 (match_test "loongarch_unsigned_immediate_p (INTVAL (op),
6,
2)")))
364 (define_predicate "uw8_operand"
365 (and (match_code "const_int")
366 (match_test "loongarch_unsigned_immediate_p (INTVAL (op),
8,
2)")))
368 (define_predicate "addiur2_operand"
369 (and (match_code "const_int")
370 (ior (match_test "INTVAL (op) == -
1")
371 (match_test "INTVAL (op) ==
1")
372 (match_test "INTVAL (op) ==
4")
373 (match_test "INTVAL (op) ==
8")
374 (match_test "INTVAL (op) ==
12")
375 (match_test "INTVAL (op) ==
16")
376 (match_test "INTVAL (op) ==
20")
377 (match_test "INTVAL (op) ==
24"))))
379 (define_predicate "addiusp_operand"
380 (and (match_code "const_int")
381 (ior (match_test "(IN_RANGE (INTVAL (op),
2,
257))")
382 (match_test "(IN_RANGE (INTVAL (op), -
258, -
3))"))))
384 (define_predicate "andi16_operand"
385 (and (match_code "const_int")
386 (ior (match_test "IN_RANGE (INTVAL (op),
1,
4)")
387 (match_test "IN_RANGE (INTVAL (op),
7,
8)")
388 (match_test "IN_RANGE (INTVAL (op),
15,
16)")
389 (match_test "IN_RANGE (INTVAL (op),
31,
32)")
390 (match_test "IN_RANGE (INTVAL (op),
63,
64)")
391 (match_test "INTVAL (op) ==
255")
392 (match_test "INTVAL (op) ==
32768")
393 (match_test "INTVAL (op) ==
65535"))))
395 (define_predicate "movep_src_register"
396 (and (match_code "reg")
397 (ior (match_test ("IN_RANGE (REGNO (op),
2,
3)"))
398 (match_test ("IN_RANGE (REGNO (op),
16,
20)")))))
400 (define_predicate "movep_src_operand"
401 (ior (match_operand
0 "const_0_operand")
402 (match_operand
0 "movep_src_register")))
404 (define_predicate "fcc_reload_operand"
405 (and (match_code "reg,subreg")
406 (match_test "FCC_REG_P (true_regnum (op))")))
408 (define_predicate "muldiv_target_operand"
409 (match_operand
0 "register_operand"))
411 (define_predicate "const_call_insn_operand"
412 (match_code "const,symbol_ref,label_ref")
414 /* Split symbol to high and low if return false.
415 If defined TARGET_CMODEL_EXTREME, all symbol would be splited,
416 else if offset is not zero, the symbol would be splited. */
418 enum loongarch_symbol_type symbol_type;
419 loongarch_symbolic_constant_p (op, &symbol_type);
422 split_const (x, &x, &offset);
424 if (offset != const0_rtx)
427 /* When compiling with '-mcmodel=medium -mexplicit-relocs'
428 symbols are splited in loongarch_legitimize_call_address.
430 When compiling with '-mcmodel=medium -mno-explicit-relocs',
431 first obtain the symbolic address or the address of the
432 plt entry, and then perform an indirect jump, so return false. */
437 if (TARGET_CMODEL_EXTREME
438 || (TARGET_CMODEL_MEDIUM && !TARGET_EXPLICIT_RELOCS))
443 case SYMBOL_GOT_DISP:
444 if (TARGET_CMODEL_EXTREME
446 || (flag_plt && TARGET_CMODEL_MEDIUM
447 && !TARGET_EXPLICIT_RELOCS))
457 (define_predicate "call_insn_operand"
458 (ior (match_operand
0 "const_call_insn_operand")
459 (match_operand
0 "register_operand")))
461 (define_predicate "is_const_call_local_symbol"
462 (and (match_operand
0 "const_call_insn_operand")
463 (ior (match_test "loongarch_global_symbol_p (op) ==
0")
464 (match_test "loongarch_symbol_binds_local_p (op) !=
0"))
465 (match_test "CONSTANT_P (op)")))
467 (define_predicate "is_const_call_no_local_symbol"
468 (and (match_operand
0 "const_call_insn_operand")
469 (ior (match_test "loongarch_global_symbol_p (op) !=
0")
470 (match_test "loongarch_symbol_binds_local_p (op) ==
0")
471 (match_test "loongarch_weak_symbol_p (op) !=
0"))
472 (match_test "CONSTANT_P (op)")))
474 ;; A legitimate CONST_INT operand that takes more than one instruction
476 (define_predicate "splittable_const_int_operand"
477 (match_code "const_int")
479 /* Don't handle multi-word moves this way; we don't want to introduce
480 the individual word-mode moves until after reload. */
481 if (GET_MODE_SIZE (mode) > UNITS_PER_WORD)
484 /* Otherwise check whether the constant can be loaded in a single
486 return !LU12I_INT (op) && !IMM12_INT (op) && !IMM12_INT_UNSIGNED (op)
490 (define_predicate "move_operand"
491 (match_operand
0 "general_operand")
493 enum loongarch_symbol_type symbol_type;
495 /* The thinking here is as follows:
497 (
1) The move expanders should split complex load sequences into
498 individual instructions. Those individual instructions can
499 then be optimized by all rtl passes.
501 (
2) The target of pre-reload load sequences should not be used
502 to store temporary results. If the target register is only
503 assigned one value, reload can rematerialize that value
504 on demand, rather than spill it to the stack.
506 (
3) If we allowed pre-reload passes like combine and cse to recreate
507 complex load sequences, we would want to be able to split the
508 sequences before reload as well, so that the pre-reload scheduler
509 can see the individual instructions. This falls foul of (
2);
510 the splitter would be forced to reuse the target register for
511 intermediate results.
513 (
4) We want to define complex load splitters for combine. These
514 splitters can request a temporary scratch register, which avoids
515 the problem in (
2). They allow things like:
517 (set (reg T1) (high SYM))
518 (set (reg T2) (low (reg T1) SYM))
519 (set (reg X) (plus (reg T2) (const_int OFFSET)))
523 (set (reg T3) (high SYM+OFFSET))
524 (set (reg X) (lo_sum (reg T3) SYM+OFFSET))
526 if T2 is only used this once. */
527 switch (GET_CODE (op))
535 return (loongarch_symbolic_constant_p (op, &symbol_type)
536 && (!TARGET_EXPLICIT_RELOCS
537 || !loongarch_split_symbol_type (symbol_type)));
540 /* '-mno-explicit-relocs' don't generate high/low pairs. */
541 if (!TARGET_EXPLICIT_RELOCS)
545 return (loongarch_symbolic_constant_p (op, &symbol_type)
546 && loongarch_split_symbol_type (symbol_type));
553 (define_predicate "symbolic_operand"
554 (match_code "const,symbol_ref,label_ref")
556 enum loongarch_symbol_type type;
557 return loongarch_symbolic_constant_p (op, &type);
560 (define_predicate "equality_operator"
561 (match_code "eq,ne"))
563 (define_predicate "order_operator"
564 (match_code "lt,ltu,le,leu,ge,geu,gt,gtu"))
566 ;; For NE, cstore uses sltu instructions in which the first operand is $
0.
568 (define_predicate "loongarch_cstore_operator"
569 (match_code "ne,eq,gt,gtu,ge,geu,lt,ltu,le,leu"))
571 (define_predicate "small_data_pattern"
572 (and (match_code "set,parallel,unspec,unspec_volatile,prefetch")
573 (match_test "loongarch_small_data_pattern_p (op)")))
575 ;; Return
1 if the operand is in non-volatile memory.
576 (define_predicate "non_volatile_mem_operand"
577 (and (match_operand
0 "memory_operand")
578 (not (match_test "MEM_VOLATILE_P (op)"))))
580 (define_predicate "const_vector_same_val_operand"
581 (match_code "const_vector")
583 return loongarch_const_vector_same_val_p (op, mode);
586 (define_predicate "const_vector_same_simm5_operand"
587 (match_code "const_vector")
589 return loongarch_const_vector_same_int_p (op, mode, -
16,
15);
592 (define_predicate "const_vector_same_uimm5_operand"
593 (match_code "const_vector")
595 return loongarch_const_vector_same_int_p (op, mode,
0,
31);
598 (define_predicate "const_vector_same_ximm5_operand"
599 (match_code "const_vector")
601 return loongarch_const_vector_same_int_p (op, mode, -
31,
31);
604 (define_predicate "const_vector_same_uimm6_operand"
605 (match_code "const_vector")
607 return loongarch_const_vector_same_int_p (op, mode,
0,
63);
610 (define_predicate "par_const_vector_shf_set_operand"
611 (match_code "parallel")
613 return loongarch_const_vector_shuffle_set_p (op, mode);
616 (define_predicate "reg_or_vector_same_val_operand"
617 (ior (match_operand
0 "register_operand")
618 (match_operand
0 "const_vector_same_val_operand")))
620 (define_predicate "reg_or_vector_same_simm5_operand"
621 (ior (match_operand
0 "register_operand")
622 (match_operand
0 "const_vector_same_simm5_operand")))
624 (define_predicate "reg_or_vector_same_uimm5_operand"
625 (ior (match_operand
0 "register_operand")
626 (match_operand
0 "const_vector_same_uimm5_operand")))
628 (define_predicate "reg_or_vector_same_ximm5_operand"
629 (ior (match_operand
0 "register_operand")
630 (match_operand
0 "const_vector_same_ximm5_operand")))
632 (define_predicate "reg_or_vector_same_uimm6_operand"
633 (ior (match_operand
0 "register_operand")
634 (match_operand
0 "const_vector_same_uimm6_operand")))