1 ;; Predicate definitions for SPARC.
2 ;; Copyright (C) 2005, 2007, 2008, 2010, 2012 Free Software Foundation, Inc.
4 ;; This file is part of GCC.
6 ;; GCC is free software; you can redistribute it and/or modify
7 ;; it under the terms of the GNU General Public License as published by
8 ;; the Free Software Foundation; either version 3, or (at your option)
11 ;; GCC is distributed in the hope that it will be useful,
12 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
13 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 ;; GNU General Public License for more details.
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/>.
20 ;; Predicates for numerical constants.
22 ;; Return true if OP is the zero constant for MODE.
23 (define_predicate "const_zero_operand"
24 (and (match_code "const_int,const_double,const_vector")
25 (match_test "op == CONST0_RTX (mode)")))
27 ;; Return true if the integer representation of OP is
29 (define_predicate "const_all_ones_operand"
30 (match_code "const_int,const_double,const_vector")
32 if (GET_CODE (op) == CONST_INT && INTVAL (op) == -1)
34 #if HOST_BITS_PER_WIDE_INT == 32
35 if (GET_CODE (op) == CONST_DOUBLE
36 && GET_MODE (op) == VOIDmode
37 && CONST_DOUBLE_HIGH (op) == ~(HOST_WIDE_INT)0
38 && CONST_DOUBLE_LOW (op) == ~(HOST_WIDE_INT)0)
41 if (GET_CODE (op) == CONST_VECTOR)
43 int i, num_elem = CONST_VECTOR_NUNITS (op);
45 for (i = 0; i < num_elem; i++)
47 rtx n = CONST_VECTOR_ELT (op, i);
48 if (! const_all_ones_operand (n, mode))
56 ;; Return true if OP is the integer constant 4096.
57 (define_predicate "const_4096_operand"
58 (and (match_code "const_int")
59 (match_test "INTVAL (op) == 4096")))
61 ;; Return true if OP is a constant that is representable by a 13-bit
62 ;; signed field. This is an acceptable immediate operand for most
63 ;; 3-address instructions.
64 (define_predicate "small_int_operand"
65 (and (match_code "const_int")
66 (match_test "SPARC_SIMM13_P (INTVAL (op))")))
68 ;; Return true if OP is a constant operand for the umul instruction. That
69 ;; instruction sign-extends immediate values just like all other SPARC
70 ;; instructions, but interprets the extended result as an unsigned number.
71 (define_predicate "uns_small_int_operand"
72 (match_code "const_int,const_double")
74 #if HOST_BITS_PER_WIDE_INT == 32
75 return ((GET_CODE (op) == CONST_INT && (unsigned) INTVAL (op) < 0x1000)
76 || (GET_CODE (op) == CONST_DOUBLE
77 && CONST_DOUBLE_HIGH (op) == 0
78 && (unsigned) CONST_DOUBLE_LOW (op) - 0xFFFFF000 < 0x1000));
80 return (GET_CODE (op) == CONST_INT
81 && ((INTVAL (op) >= 0 && INTVAL (op) < 0x1000)
82 || (INTVAL (op) >= 0xFFFFF000
83 && INTVAL (op) <= 0xFFFFFFFF)));
87 ;; Return true if OP is a constant that can be loaded by the sethi instruction.
88 ;; The first test avoids emitting sethi to load zero for example.
89 (define_predicate "const_high_operand"
90 (and (match_code "const_int")
91 (and (not (match_operand 0 "small_int_operand"))
92 (match_test "SPARC_SETHI_P (INTVAL (op) & GET_MODE_MASK (mode))"))))
94 ;; Return true if OP is a constant whose 1's complement can be loaded by the
96 (define_predicate "const_compl_high_operand"
97 (and (match_code "const_int")
98 (and (not (match_operand 0 "small_int_operand"))
99 (match_test "SPARC_SETHI_P (~INTVAL (op) & GET_MODE_MASK (mode))"))))
101 ;; Return true if OP is a FP constant that needs to be loaded by the sethi/losum
102 ;; pair of instructions.
103 (define_predicate "fp_const_high_losum_operand"
104 (match_operand 0 "const_double_operand")
106 gcc_assert (mode == SFmode);
107 return fp_high_losum_p (op);
110 ;; Return true if OP is a const_double or const_vector.
111 (define_predicate "const_double_or_vector_operand"
112 (match_code "const_double,const_vector"))
114 ;; Return true if OP is Zero, or if the target is V7.
115 (define_predicate "zero_or_v7_operand"
116 (and (match_code "const_int")
117 (ior (match_test "INTVAL (op) == 0")
118 (match_test "!TARGET_V8 && !TARGET_V9"))))
120 ;; Predicates for symbolic constants.
122 ;; Return true if OP is either a symbol reference or a sum of a symbol
123 ;; reference and a constant.
124 (define_predicate "symbolic_operand"
125 (match_code "symbol_ref,label_ref,const")
127 enum machine_mode omode = GET_MODE (op);
129 if (omode != mode && omode != VOIDmode && mode != VOIDmode)
132 switch (GET_CODE (op))
135 return !SYMBOL_REF_TLS_MODEL (op);
142 return (((GET_CODE (XEXP (op, 0)) == SYMBOL_REF
143 && !SYMBOL_REF_TLS_MODEL (XEXP (op, 0)))
144 || GET_CODE (XEXP (op, 0)) == LABEL_REF)
145 && GET_CODE (XEXP (op, 1)) == CONST_INT);
152 ;; Return true if OP is a symbolic operand for the TLS Global Dynamic model.
153 (define_predicate "tgd_symbolic_operand"
154 (and (match_code "symbol_ref")
155 (match_test "SYMBOL_REF_TLS_MODEL (op) == TLS_MODEL_GLOBAL_DYNAMIC")))
157 ;; Return true if OP is a symbolic operand for the TLS Local Dynamic model.
158 (define_predicate "tld_symbolic_operand"
159 (and (match_code "symbol_ref")
160 (match_test "SYMBOL_REF_TLS_MODEL (op) == TLS_MODEL_LOCAL_DYNAMIC")))
162 ;; Return true if OP is a symbolic operand for the TLS Initial Exec model.
163 (define_predicate "tie_symbolic_operand"
164 (and (match_code "symbol_ref")
165 (match_test "SYMBOL_REF_TLS_MODEL (op) == TLS_MODEL_INITIAL_EXEC")))
167 ;; Return true if OP is a symbolic operand for the TLS Local Exec model.
168 (define_predicate "tle_symbolic_operand"
169 (and (match_code "symbol_ref")
170 (match_test "SYMBOL_REF_TLS_MODEL (op) == TLS_MODEL_LOCAL_EXEC")))
172 ;; Return true if the operand is an argument used in generating PIC references
173 ;; in either the medium/low or embedded medium/anywhere code models on V9.
174 ;; Check for (const (minus (symbol_ref:GOT)
175 ;; (const (minus (label) (pc)))))
176 (define_predicate "medium_pic_operand"
179 /* Check for (const (minus (symbol_ref:GOT)
180 (const (minus (label) (pc))))). */
182 return GET_CODE (op) == MINUS
183 && GET_CODE (XEXP (op, 0)) == SYMBOL_REF
184 && GET_CODE (XEXP (op, 1)) == CONST
185 && GET_CODE (XEXP (XEXP (op, 1), 0)) == MINUS;
188 ;; Return true if OP is a LABEL_REF of mode MODE.
189 (define_predicate "label_ref_operand"
190 (and (match_code "label_ref")
191 (match_test "GET_MODE (op) == mode")))
193 ;; Return true if OP is a data segment reference. This includes the readonly
194 ;; data segment or, in other words, anything but the text segment.
195 ;; This is needed in the embedded medium/anywhere code model on V9. These
196 ;; values are accessed with EMBMEDANY_BASE_REG. */
197 (define_predicate "data_segment_operand"
198 (match_code "symbol_ref,plus,const")
200 switch (GET_CODE (op))
203 return ! SYMBOL_REF_FUNCTION_P (op);
205 /* Assume canonical format of symbol + constant.
208 return data_segment_operand (XEXP (op, 0), VOIDmode);
214 ;; Return true if OP is a text segment reference.
215 ;; This is needed in the embedded medium/anywhere code model on V9.
216 (define_predicate "text_segment_operand"
217 (match_code "label_ref,symbol_ref,plus,const")
219 switch (GET_CODE (op))
224 return SYMBOL_REF_FUNCTION_P (op);
226 /* Assume canonical format of symbol + constant.
229 return text_segment_operand (XEXP (op, 0), VOIDmode);
236 ;; Predicates for registers.
238 ;; Return true if OP is either the zero constant or a register.
239 (define_predicate "register_or_zero_operand"
240 (ior (match_operand 0 "register_operand")
241 (match_operand 0 "const_zero_operand")))
243 (define_predicate "register_or_v9_zero_operand"
244 (ior (match_operand 0 "register_operand")
245 (and (match_test "TARGET_V9")
246 (match_operand 0 "const_zero_operand"))))
248 ;; Return true if OP is either the zero constant, the all-ones
249 ;; constant, or a register.
250 (define_predicate "register_or_zero_or_all_ones_operand"
251 (ior (match_operand 0 "register_or_zero_operand")
252 (match_operand 0 "const_all_ones_operand")))
254 ;; Return true if OP is a register operand in a floating point register.
255 (define_predicate "fp_register_operand"
256 (match_operand 0 "register_operand")
258 if (GET_CODE (op) == SUBREG)
259 op = SUBREG_REG (op); /* Possibly a MEM */
260 return REG_P (op) && SPARC_FP_REG_P (REGNO (op));
263 ;; Return true if OP is an integer register.
264 (define_special_predicate "int_register_operand"
265 (ior (match_test "register_operand (op, SImode)")
266 (match_test "TARGET_ARCH64 && register_operand (op, DImode)")))
268 ;; Return true if OP is a floating point condition code register.
269 (define_predicate "fcc_register_operand"
272 if (mode != VOIDmode && mode != GET_MODE (op))
275 && (GET_MODE (op) != CCFPmode && GET_MODE (op) != CCFPEmode))
278 #if 0 /* ??? 1 when %fcc0-3 are pseudos first. See gen_compare_reg(). */
279 if (reg_renumber == 0)
280 return REGNO (op) >= FIRST_PSEUDO_REGISTER;
281 return REGNO_OK_FOR_CCFP_P (REGNO (op));
283 return ((unsigned) REGNO (op) - SPARC_FIRST_V9_FCC_REG) < 4;
287 ;; Return true if OP is the floating point condition code register fcc0.
288 (define_predicate "fcc0_register_operand"
291 if (mode != VOIDmode && mode != GET_MODE (op))
294 && (GET_MODE (op) != CCFPmode && GET_MODE (op) != CCFPEmode))
297 return REGNO (op) == SPARC_FCC_REG;
300 ;; Return true if OP is an integer or floating point condition code register.
301 (define_predicate "icc_or_fcc_register_operand"
304 if (REGNO (op) == SPARC_ICC_REG)
306 if (mode != VOIDmode && mode != GET_MODE (op))
309 && GET_MODE (op) != CCmode && GET_MODE (op) != CCXmode)
315 return fcc_register_operand (op, mode);
319 ;; Predicates for arithmetic instructions.
321 ;; Return true if OP is a register, or is a constant that is representable
322 ;; by a 13-bit signed field. This is an acceptable operand for most
323 ;; 3-address instructions.
324 (define_predicate "arith_operand"
325 (ior (match_operand 0 "register_operand")
326 (match_operand 0 "small_int_operand")))
328 ;; 64-bit: Same as above.
329 ;; 32-bit: Return true if OP is a register, or is a constant that is
330 ;; representable by a couple of 13-bit signed fields. This is an
331 ;; acceptable operand for most 3-address splitters.
332 (define_predicate "arith_double_operand"
333 (match_code "const_int,const_double,reg,subreg")
335 bool arith_simple_operand = arith_operand (op, mode);
336 HOST_WIDE_INT m1, m2;
338 if (TARGET_ARCH64 || arith_simple_operand)
339 return arith_simple_operand;
341 #if HOST_BITS_PER_WIDE_INT == 32
342 if (GET_CODE (op) != CONST_DOUBLE)
344 m1 = CONST_DOUBLE_LOW (op);
345 m2 = CONST_DOUBLE_HIGH (op);
347 if (GET_CODE (op) != CONST_INT)
349 m1 = trunc_int_for_mode (INTVAL (op), SImode);
350 m2 = trunc_int_for_mode (INTVAL (op) >> 32, SImode);
353 return SPARC_SIMM13_P (m1) && SPARC_SIMM13_P (m2);
356 ;; Return true if OP is suitable as second operand for add/sub.
357 (define_predicate "arith_add_operand"
358 (ior (match_operand 0 "arith_operand")
359 (match_operand 0 "const_4096_operand")))
361 ;; Return true if OP is suitable as second double operand for add/sub.
362 (define_predicate "arith_double_add_operand"
363 (match_code "const_int,const_double,reg,subreg")
365 bool _arith_double_operand = arith_double_operand (op, mode);
367 if (_arith_double_operand)
370 return TARGET_ARCH64 && const_4096_operand (op, mode);
373 ;; Return true if OP is a register, or is a CONST_INT that can fit in a
374 ;; signed 10-bit immediate field. This is an acceptable SImode operand for
375 ;; the movrcc instructions.
376 (define_predicate "arith10_operand"
377 (ior (match_operand 0 "register_operand")
378 (and (match_code "const_int")
379 (match_test "SPARC_SIMM10_P (INTVAL (op))"))))
381 ;; Return true if OP is a register, or is a CONST_INT that can fit in a
382 ;; signed 11-bit immediate field. This is an acceptable SImode operand for
383 ;; the movcc instructions.
384 (define_predicate "arith11_operand"
385 (ior (match_operand 0 "register_operand")
386 (and (match_code "const_int")
387 (match_test "SPARC_SIMM11_P (INTVAL (op))"))))
389 ;; Return true if OP is a register or a constant for the umul instruction.
390 (define_predicate "uns_arith_operand"
391 (ior (match_operand 0 "register_operand")
392 (match_operand 0 "uns_small_int_operand")))
395 ;; Predicates for miscellaneous instructions.
397 ;; Return true if OP is valid for the lhs of a comparison insn.
398 (define_predicate "compare_operand"
399 (match_code "reg,subreg,zero_extract")
401 if (GET_CODE (op) == ZERO_EXTRACT)
402 return (register_operand (XEXP (op, 0), mode)
403 && small_int_operand (XEXP (op, 1), mode)
404 && small_int_operand (XEXP (op, 2), mode)
405 /* This matches cmp_zero_extract. */
407 && INTVAL (XEXP (op, 2)) > 19)
408 /* This matches cmp_zero_extract_sp64. */
411 && INTVAL (XEXP (op, 2)) > 51)));
413 return register_operand (op, mode);
416 ;; Return true if OP is a valid operand for the source of a move insn.
417 (define_predicate "input_operand"
418 (match_code "const_int,const_double,const_vector,reg,subreg,mem")
420 enum mode_class mclass;
422 /* If both modes are non-void they must be the same. */
423 if (mode != VOIDmode && GET_MODE (op) != VOIDmode && mode != GET_MODE (op))
426 mclass = GET_MODE_CLASS (mode);
428 /* Allow any 1-instruction integer constant. */
429 if (mclass == MODE_INT
430 && (small_int_operand (op, mode) || const_high_operand (op, mode)))
433 /* If 32-bit mode and this is a DImode constant, allow it
434 so that the splits can be generated. */
437 && (GET_CODE (op) == CONST_DOUBLE || GET_CODE (op) == CONST_INT))
440 if (mclass == MODE_FLOAT && GET_CODE (op) == CONST_DOUBLE)
443 if (mclass == MODE_VECTOR_INT && GET_CODE (op) == CONST_VECTOR
444 && (const_zero_operand (op, mode)
445 || const_all_ones_operand (op, mode)))
448 if (register_operand (op, mode))
451 /* If this is a SUBREG, look inside so that we handle paradoxical ones. */
452 if (GET_CODE (op) == SUBREG)
453 op = SUBREG_REG (op);
455 /* Check for valid MEM forms. */
456 if (GET_CODE (op) == MEM)
457 return memory_address_p (mode, XEXP (op, 0));
462 ;; Return true if OP is an address suitable for a call insn.
463 ;; Call insn on SPARC can take a PC-relative constant address
464 ;; or any regular memory address.
465 (define_predicate "call_address_operand"
466 (ior (match_operand 0 "symbolic_operand")
467 (match_test "memory_address_p (Pmode, op)")))
469 ;; Return true if OP is an operand suitable for a call insn.
470 (define_predicate "call_operand"
471 (and (match_code "mem")
472 (match_test "call_address_operand (XEXP (op, 0), mode)")))
475 (define_predicate "mem_noofs_operand"
476 (and (match_code "mem")
477 (match_code "reg" "0")))
479 ;; Predicates for operators.
481 ;; Return true if OP is a comparison operator. This allows the use of
482 ;; MATCH_OPERATOR to recognize all the branch insns.
483 (define_predicate "noov_compare_operator"
484 (match_code "ne,eq,ge,gt,le,lt,geu,gtu,leu,ltu")
486 enum rtx_code code = GET_CODE (op);
487 if (GET_MODE (XEXP (op, 0)) == CC_NOOVmode
488 || GET_MODE (XEXP (op, 0)) == CCX_NOOVmode)
489 /* These are the only branches which work with CC_NOOVmode. */
490 return (code == EQ || code == NE || code == GE || code == LT);
494 ;; Return true if OP is a 64-bit comparison operator. This allows the use of
495 ;; MATCH_OPERATOR to recognize all the branch insns.
496 (define_predicate "noov_compare64_operator"
497 (and (match_code "ne,eq,ge,gt,le,lt,geu,gtu,leu,ltu")
498 (match_test "TARGET_V9"))
500 enum rtx_code code = GET_CODE (op);
501 if (GET_MODE (XEXP (op, 0)) == CCX_NOOVmode)
502 /* These are the only branches which work with CCX_NOOVmode. */
503 return (code == EQ || code == NE || code == GE || code == LT);
504 return (GET_MODE (XEXP (op, 0)) == CCXmode);
507 ;; Return true if OP is a comparison operator suitable for use in V9
508 ;; conditional move or branch on register contents instructions.
509 (define_predicate "v9_register_compare_operator"
510 (match_code "eq,ne,ge,lt,le,gt"))
512 ;; Return true if OP is an operator which can set the condition codes
513 ;; explicitly. We do not include PLUS and MINUS because these
514 ;; require CC_NOOVmode, which we handle explicitly.
515 (define_predicate "cc_arith_operator"
516 (match_code "and,ior,xor"))
518 ;; Return true if OP is an operator which can bitwise complement its
519 ;; second operand and set the condition codes explicitly.
520 ;; XOR is not here because combine canonicalizes (xor (not ...) ...)
521 ;; and (xor ... (not ...)) to (not (xor ...)). */
522 (define_predicate "cc_arith_not_operator"
523 (match_code "and,ior"))