1 ;; Predicate definitions for HP PA-RISC.
2 ;; Copyright (C) 2005 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 2, 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 COPYING. If not, write to
18 ;; the Free Software Foundation, 51 Franklin Street, Fifth Floor,
19 ;; Boston, MA 02110-1301, USA.
21 ;; Return nonzero only if OP is a register of mode MODE, or
24 (define_predicate "reg_or_0_operand"
25 (match_code "subreg,reg,const_int,const_double")
27 return (op == CONST0_RTX (mode) || register_operand (op, mode));
30 ;; Return nonzero if OP is suitable for use in a call to a named
33 ;; For 2.5 try to eliminate either call_operand_address or
34 ;; function_label_operand, they perform very similar functions.
36 (define_predicate "call_operand_address"
37 (match_code "label_ref,symbol_ref,const_int,const_double,const,high")
39 return (GET_MODE (op) == word_mode
40 && CONSTANT_P (op) && ! TARGET_PORTABLE_RUNTIME);
43 ;; Return 1 iff OP is an indexed memory operand.
45 (define_predicate "indexed_memory_operand"
46 (match_code "subreg,mem")
48 if (GET_MODE (op) != mode)
51 /* Before reload, a (SUBREG (MEM...)) forces reloading into a register. */
52 if (reload_completed && GET_CODE (op) == SUBREG)
55 if (GET_CODE (op) != MEM || symbolic_memory_operand (op, mode))
60 return (memory_address_p (mode, op) && IS_INDEX_ADDR_P (op));
63 ;; Return 1 iff OP is a symbolic operand.
64 ;; Note: an inline copy of this code is present in pa_secondary_reload.
66 (define_predicate "symbolic_operand"
67 (match_code "symbol_ref,label_ref,const")
69 switch (GET_CODE (op))
72 return !SYMBOL_REF_TLS_MODEL (op);
77 return (((GET_CODE (XEXP (op, 0)) == SYMBOL_REF
78 && !SYMBOL_REF_TLS_MODEL (XEXP (op, 0)))
79 || GET_CODE (XEXP (op, 0)) == LABEL_REF)
80 && GET_CODE (XEXP (op, 1)) == CONST_INT);
86 ;; Return truth value of statement that OP is a symbolic memory
87 ;; operand of mode MODE.
89 (define_predicate "symbolic_memory_operand"
90 (match_code "subreg,mem")
92 if (GET_CODE (op) == SUBREG)
94 if (GET_CODE (op) != MEM)
97 return ((GET_CODE (op) == SYMBOL_REF && !SYMBOL_REF_TLS_MODEL (op))
98 || GET_CODE (op) == CONST || GET_CODE (op) == HIGH
99 || GET_CODE (op) == LABEL_REF);
102 ;; Return true if OP is a symbolic operand for the TLS Global Dynamic model.
103 (define_predicate "tgd_symbolic_operand"
104 (and (match_code "symbol_ref")
105 (match_test "SYMBOL_REF_TLS_MODEL (op) == TLS_MODEL_GLOBAL_DYNAMIC")))
107 ;; Return true if OP is a symbolic operand for the TLS Local Dynamic model.
108 (define_predicate "tld_symbolic_operand"
109 (and (match_code "symbol_ref")
110 (match_test "SYMBOL_REF_TLS_MODEL (op) == TLS_MODEL_LOCAL_DYNAMIC")))
112 ;; Return true if OP is a symbolic operand for the TLS Initial Exec model.
113 (define_predicate "tie_symbolic_operand"
114 (and (match_code "symbol_ref")
115 (match_test "SYMBOL_REF_TLS_MODEL (op) == TLS_MODEL_INITIAL_EXEC")))
117 ;; Return true if OP is a symbolic operand for the TLS Local Exec model.
118 (define_predicate "tle_symbolic_operand"
119 (and (match_code "symbol_ref")
120 (match_test "SYMBOL_REF_TLS_MODEL (op) == TLS_MODEL_LOCAL_EXEC")))
123 ;; Return 1 if the operand is a register operand or a non-symbolic
124 ;; memory operand after reload. This predicate is used for branch
125 ;; patterns that internally handle register reloading. We need to
126 ;; accept non-symbolic memory operands after reload to ensure that the
127 ;; pattern is still valid if reload didn't find a hard register for
130 (define_predicate "reg_before_reload_operand"
131 (match_code "reg,mem")
133 /* Don't accept a SUBREG since it will need a reload. */
134 if (GET_CODE (op) == SUBREG)
137 if (register_operand (op, mode))
141 && memory_operand (op, mode)
142 && !symbolic_memory_operand (op, mode))
148 ;; Return 1 if the operand is either a register, zero, or a memory
149 ;; operand that is not symbolic.
151 (define_predicate "reg_or_0_or_nonsymb_mem_operand"
152 (match_code "subreg,reg,mem,const_int,const_double")
154 if (register_operand (op, mode))
157 if (op == CONST0_RTX (mode))
160 if (GET_CODE (op) == SUBREG)
161 op = SUBREG_REG (op);
163 if (GET_CODE (op) != MEM)
166 /* Until problems with management of the REG_POINTER flag are resolved,
167 we need to delay creating move insns with unscaled indexed addresses
168 until CSE is not expected. */
169 if (!TARGET_NO_SPACE_REGS
171 && GET_CODE (XEXP (op, 0)) == PLUS
172 && REG_P (XEXP (XEXP (op, 0), 0))
173 && REG_P (XEXP (XEXP (op, 0), 1)))
176 return (!symbolic_memory_operand (op, mode)
177 && memory_address_p (mode, XEXP (op, 0)));
180 ;; Accept anything that can be used as a destination operand for a
181 ;; move instruction. We don't accept indexed memory operands since
182 ;; they are supported only for floating point stores.
184 (define_predicate "move_dest_operand"
185 (match_code "subreg,reg,mem")
187 if (register_operand (op, mode))
190 if (GET_MODE (op) != mode)
193 if (GET_CODE (op) == SUBREG)
194 op = SUBREG_REG (op);
196 if (GET_CODE (op) != MEM || symbolic_memory_operand (op, mode))
201 return (memory_address_p (mode, op)
202 && !IS_INDEX_ADDR_P (op)
203 && !IS_LO_SUM_DLT_ADDR_P (op));
206 ;; Accept anything that can be used as a source operand for a move
209 (define_predicate "move_src_operand"
210 (match_code "subreg,reg,const_int,const_double,mem")
212 if (register_operand (op, mode))
215 if (op == CONST0_RTX (mode))
218 if (GET_CODE (op) == CONST_INT)
219 return cint_ok_for_move (INTVAL (op));
221 if (GET_MODE (op) != mode)
224 if (GET_CODE (op) == SUBREG)
225 op = SUBREG_REG (op);
227 if (GET_CODE (op) != MEM)
230 /* Until problems with management of the REG_POINTER flag are resolved,
231 we need to delay creating move insns with unscaled indexed addresses
232 until CSE is not expected. */
233 if (!TARGET_NO_SPACE_REGS
235 && GET_CODE (XEXP (op, 0)) == PLUS
236 && REG_P (XEXP (XEXP (op, 0), 0))
237 && REG_P (XEXP (XEXP (op, 0), 1)))
240 return memory_address_p (mode, XEXP (op, 0));
243 ;; Accept anything that can be used as the source operand for a
244 ;; prefetch instruction with a cache-control completer.
246 (define_predicate "prefetch_cc_operand"
249 if (GET_CODE (op) != MEM)
254 /* We must reject virtual registers as we don't allow REG+D. */
255 if (op == virtual_incoming_args_rtx
256 || op == virtual_stack_vars_rtx
257 || op == virtual_stack_dynamic_rtx
258 || op == virtual_outgoing_args_rtx
259 || op == virtual_cfa_rtx)
262 if (!REG_P (op) && !IS_INDEX_ADDR_P (op))
265 /* Until problems with management of the REG_POINTER flag are resolved,
266 we need to delay creating prefetch insns with unscaled indexed addresses
267 until CSE is not expected. */
268 if (!TARGET_NO_SPACE_REGS
270 && GET_CODE (op) == PLUS
271 && REG_P (XEXP (op, 0)))
274 return memory_address_p (mode, op);
277 ;; Accept anything that can be used as the source operand for a
278 ;; prefetch instruction with no cache-control completer.
280 (define_predicate "prefetch_nocc_operand"
283 if (GET_CODE (op) != MEM)
288 /* Until problems with management of the REG_POINTER flag are resolved,
289 we need to delay creating prefetch insns with unscaled indexed addresses
290 until CSE is not expected. */
291 if (!TARGET_NO_SPACE_REGS
293 && GET_CODE (op) == PLUS
294 && REG_P (XEXP (op, 0))
295 && REG_P (XEXP (op, 1)))
298 return memory_address_p (mode, op);
301 ;; Accept REG and any CONST_INT that can be moved in one instruction
302 ;; into a general register.
304 (define_predicate "reg_or_cint_move_operand"
305 (match_code "subreg,reg,const_int")
307 if (register_operand (op, mode))
310 return (GET_CODE (op) == CONST_INT && cint_ok_for_move (INTVAL (op)));
313 ;; TODO: Add a comment here.
315 (define_predicate "pic_label_operand"
316 (match_code "label_ref,const")
321 switch (GET_CODE (op))
327 return (GET_CODE (XEXP (op, 0)) == LABEL_REF
328 && GET_CODE (XEXP (op, 1)) == CONST_INT);
334 ;; TODO: Add a comment here.
336 (define_predicate "fp_reg_operand"
339 return reg_renumber && FP_REG_P (op);
342 ;; Return truth value of whether OP can be used as an operand in a
343 ;; three operand arithmetic insn that accepts registers of mode MODE
344 ;; or 14-bit signed integers.
346 (define_predicate "arith_operand"
347 (match_code "subreg,reg,const_int")
349 return (register_operand (op, mode)
350 || (GET_CODE (op) == CONST_INT && INT_14_BITS (op)));
353 ;; Return truth value of whether OP can be used as an operand in a
354 ;; three operand arithmetic insn that accepts registers of mode MODE
355 ;; or 11-bit signed integers.
357 (define_predicate "arith11_operand"
358 (match_code "subreg,reg,const_int")
360 return (register_operand (op, mode)
361 || (GET_CODE (op) == CONST_INT && INT_11_BITS (op)));
364 ;; A constant integer suitable for use in a PRE_MODIFY memory
367 (define_predicate "pre_cint_operand"
368 (match_code "const_int")
370 return (GET_CODE (op) == CONST_INT
371 && INTVAL (op) >= -0x2000 && INTVAL (op) < 0x10);
374 ;; A constant integer suitable for use in a POST_MODIFY memory
377 (define_predicate "post_cint_operand"
378 (match_code "const_int")
380 return (GET_CODE (op) == CONST_INT
381 && INTVAL (op) < 0x2000 && INTVAL (op) >= -0x10);
384 ;; TODO: Add a comment here.
386 (define_predicate "arith_double_operand"
387 (match_code "subreg,reg,const_double")
389 return (register_operand (op, mode)
390 || (GET_CODE (op) == CONST_DOUBLE
391 && GET_MODE (op) == mode
392 && VAL_14_BITS_P (CONST_DOUBLE_LOW (op))
393 && ((CONST_DOUBLE_HIGH (op) >= 0)
394 == ((CONST_DOUBLE_LOW (op) & 0x1000) == 0))));
397 ;; Return truth value of whether OP is an integer which fits the range
398 ;; constraining immediate operands in three-address insns, or is an
401 (define_predicate "ireg_or_int5_operand"
402 (match_code "const_int,reg")
404 return ((GET_CODE (op) == CONST_INT && INT_5_BITS (op))
405 || (GET_CODE (op) == REG && REGNO (op) > 0 && REGNO (op) < 32));
408 ;; Return truth value of whether OP is an integer which fits the range
409 ;; constraining immediate operands in three-address insns.
411 (define_predicate "int5_operand"
412 (match_code "const_int")
414 return (GET_CODE (op) == CONST_INT && INT_5_BITS (op));
417 ;; Return truth value of whether OP is an integer which fits the range
418 ;; constraining immediate operands in three-address insns.
420 (define_predicate "uint5_operand"
421 (match_code "const_int")
423 return (GET_CODE (op) == CONST_INT && INT_U5_BITS (op));
426 ;; Return truth value of whether OP is an integer which fits the range
427 ;; constraining immediate operands in three-address insns.
429 (define_predicate "int11_operand"
430 (match_code "const_int")
432 return (GET_CODE (op) == CONST_INT && INT_11_BITS (op));
435 ;; Return truth value of whether OP is an integer which fits the range
436 ;; constraining immediate operands in three-address insns.
438 (define_predicate "uint32_operand"
439 (match_code "const_int,const_double")
441 #if HOST_BITS_PER_WIDE_INT > 32
442 /* All allowed constants will fit a CONST_INT. */
443 return (GET_CODE (op) == CONST_INT
444 && (INTVAL (op) >= 0 && INTVAL (op) < (HOST_WIDE_INT) 1 << 32));
446 return (GET_CODE (op) == CONST_INT
447 || (GET_CODE (op) == CONST_DOUBLE
448 && CONST_DOUBLE_HIGH (op) == 0));
452 ;; Return truth value of whether OP is an integer which fits the range
453 ;; constraining immediate operands in three-address insns.
455 (define_predicate "arith5_operand"
456 (match_code "subreg,reg,const_int")
458 return register_operand (op, mode) || int5_operand (op, mode);
461 ;; True iff depi or extru can be used to compute (reg & OP).
463 (define_predicate "and_operand"
464 (match_code "subreg,reg,const_int")
466 return (register_operand (op, mode)
467 || (GET_CODE (op) == CONST_INT && and_mask_p (INTVAL (op))));
470 ;; True iff depi can be used to compute (reg | OP).
472 (define_predicate "ior_operand"
473 (match_code "const_int")
475 return (GET_CODE (op) == CONST_INT && ior_mask_p (INTVAL (op)));
478 ;; True iff OP is a CONST_INT of the forms 0...0xxxx or
479 ;; 0...01...1xxxx. Such values can be the left hand side x in (x <<
480 ;; r), using the zvdepi instruction.
482 (define_predicate "lhs_lshift_cint_operand"
483 (match_code "const_int")
485 unsigned HOST_WIDE_INT x;
486 if (GET_CODE (op) != CONST_INT)
488 x = INTVAL (op) >> 4;
489 return (x & (x + 1)) == 0;
492 ;; TODO: Add a comment here.
494 (define_predicate "lhs_lshift_operand"
495 (match_code "subreg,reg,const_int")
497 return register_operand (op, mode) || lhs_lshift_cint_operand (op, mode);
500 ;; TODO: Add a comment here.
502 (define_predicate "arith32_operand"
503 (match_code "subreg,reg,const_int")
505 return register_operand (op, mode) || GET_CODE (op) == CONST_INT;
508 ;; TODO: Add a comment here.
510 (define_predicate "pc_or_label_operand"
511 (match_code "pc,label_ref")
513 return (GET_CODE (op) == PC || GET_CODE (op) == LABEL_REF);
516 ;; TODO: Add a comment here.
518 (define_predicate "plus_xor_ior_operator"
519 (match_code "plus,xor,ior")
521 return (GET_CODE (op) == PLUS || GET_CODE (op) == XOR
522 || GET_CODE (op) == IOR);
525 ;; Return 1 if OP is a CONST_INT with the value 2, 4, or 8. These are
526 ;; the valid constant for shadd instructions.
528 (define_predicate "shadd_operand"
529 (match_code "const_int")
531 return (GET_CODE (op) == CONST_INT && shadd_constant_p (INTVAL (op)));
534 ;; TODO: Add a comment here.
536 (define_predicate "div_operand"
537 (match_code "reg,const_int")
539 return (mode == SImode
540 && ((GET_CODE (op) == REG && REGNO (op) == 25)
541 || (GET_CODE (op) == CONST_INT && INTVAL (op) > 0
542 && INTVAL (op) < 16 && magic_milli[INTVAL (op)])));
545 ;; Return nonzero if OP is an integer register, else return zero.
547 (define_predicate "ireg_operand"
550 return (GET_CODE (op) == REG && REGNO (op) > 0 && REGNO (op) < 32);
553 ;; Return 1 if this is a comparison operator. This allows the use of
554 ;; MATCH_OPERATOR to recognize all the branch insns.
556 (define_predicate "cmpib_comparison_operator"
557 (match_code "eq,ne,lt,le,leu,gt,gtu,ge")
559 return ((mode == VOIDmode || GET_MODE (op) == mode)
560 && (GET_CODE (op) == EQ
561 || GET_CODE (op) == NE
562 || GET_CODE (op) == GT
563 || GET_CODE (op) == GTU
564 || GET_CODE (op) == GE
565 || GET_CODE (op) == LT
566 || GET_CODE (op) == LE
567 || GET_CODE (op) == LEU));
570 ;; Return 1 if OP is an operator suitable for use in a movb
573 (define_predicate "movb_comparison_operator"
574 (match_code "eq,ne,lt,ge")
576 return (GET_CODE (op) == EQ || GET_CODE (op) == NE
577 || GET_CODE (op) == LT || GET_CODE (op) == GE);