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 ;; TODO: Add a comment.
65 (define_predicate "symbolic_operand"
66 (match_code "symbol_ref,label_ref,const")
68 switch (GET_CODE (op))
71 return !SYMBOL_REF_TLS_MODEL (op);
76 return (((GET_CODE (XEXP (op, 0)) == SYMBOL_REF
77 && !SYMBOL_REF_TLS_MODEL (XEXP (op, 0)))
78 || GET_CODE (XEXP (op, 0)) == LABEL_REF)
79 && GET_CODE (XEXP (op, 1)) == CONST_INT);
85 ;; Return truth value of statement that OP is a symbolic memory
86 ;; operand of mode MODE.
88 (define_predicate "symbolic_memory_operand"
89 (match_code "subreg,mem")
91 if (GET_CODE (op) == SUBREG)
93 if (GET_CODE (op) != MEM)
96 return ((GET_CODE (op) == SYMBOL_REF && !SYMBOL_REF_TLS_MODEL (op))
97 || GET_CODE (op) == CONST || GET_CODE (op) == HIGH
98 || GET_CODE (op) == LABEL_REF);
101 ;; Return true if OP is a symbolic operand for the TLS Global Dynamic model.
102 (define_predicate "tgd_symbolic_operand"
103 (and (match_code "symbol_ref")
104 (match_test "SYMBOL_REF_TLS_MODEL (op) == TLS_MODEL_GLOBAL_DYNAMIC")))
106 ;; Return true if OP is a symbolic operand for the TLS Local Dynamic model.
107 (define_predicate "tld_symbolic_operand"
108 (and (match_code "symbol_ref")
109 (match_test "SYMBOL_REF_TLS_MODEL (op) == TLS_MODEL_LOCAL_DYNAMIC")))
111 ;; Return true if OP is a symbolic operand for the TLS Initial Exec model.
112 (define_predicate "tie_symbolic_operand"
113 (and (match_code "symbol_ref")
114 (match_test "SYMBOL_REF_TLS_MODEL (op) == TLS_MODEL_INITIAL_EXEC")))
116 ;; Return true if OP is a symbolic operand for the TLS Local Exec model.
117 (define_predicate "tle_symbolic_operand"
118 (and (match_code "symbol_ref")
119 (match_test "SYMBOL_REF_TLS_MODEL (op) == TLS_MODEL_LOCAL_EXEC")))
122 ;; Return 1 if the operand is a register operand or a non-symbolic
123 ;; memory operand after reload. This predicate is used for branch
124 ;; patterns that internally handle register reloading. We need to
125 ;; accept non-symbolic memory operands after reload to ensure that the
126 ;; pattern is still valid if reload didn't find a hard register for
129 (define_predicate "reg_before_reload_operand"
130 (match_code "reg,mem")
132 /* Don't accept a SUBREG since it will need a reload. */
133 if (GET_CODE (op) == SUBREG)
136 if (register_operand (op, mode))
140 && memory_operand (op, mode)
141 && !symbolic_memory_operand (op, mode))
147 ;; Return 1 if the operand is either a register, zero, or a memory
148 ;; operand that is not symbolic.
150 (define_predicate "reg_or_0_or_nonsymb_mem_operand"
151 (match_code "subreg,reg,mem,const_int,const_double")
153 if (register_operand (op, mode))
156 if (op == CONST0_RTX (mode))
159 if (GET_CODE (op) == SUBREG)
160 op = SUBREG_REG (op);
162 if (GET_CODE (op) != MEM)
165 /* Until problems with management of the REG_POINTER flag are resolved,
166 we need to delay creating move insns with unscaled indexed addresses
167 until CSE is not expected. */
168 if (!TARGET_NO_SPACE_REGS
170 && GET_CODE (XEXP (op, 0)) == PLUS
171 && REG_P (XEXP (XEXP (op, 0), 0))
172 && REG_P (XEXP (XEXP (op, 0), 1)))
175 return (!symbolic_memory_operand (op, mode)
176 && memory_address_p (mode, XEXP (op, 0)));
179 ;; Accept anything that can be used as a destination operand for a
180 ;; move instruction. We don't accept indexed memory operands since
181 ;; they are supported only for floating point stores.
183 (define_predicate "move_dest_operand"
184 (match_code "subreg,reg,mem")
186 if (register_operand (op, mode))
189 if (GET_MODE (op) != mode)
192 if (GET_CODE (op) == SUBREG)
193 op = SUBREG_REG (op);
195 if (GET_CODE (op) != MEM || symbolic_memory_operand (op, mode))
200 return (memory_address_p (mode, op)
201 && !IS_INDEX_ADDR_P (op)
202 && !IS_LO_SUM_DLT_ADDR_P (op));
205 ;; Accept anything that can be used as a source operand for a move
208 (define_predicate "move_src_operand"
209 (match_code "subreg,reg,const_int,mem")
211 if (register_operand (op, mode))
214 if (GET_CODE (op) == CONST_INT)
215 return cint_ok_for_move (INTVAL (op));
217 if (GET_MODE (op) != mode)
220 if (GET_CODE (op) == SUBREG)
221 op = SUBREG_REG (op);
223 if (GET_CODE (op) != MEM)
226 /* Until problems with management of the REG_POINTER flag are resolved,
227 we need to delay creating move insns with unscaled indexed addresses
228 until CSE is not expected. */
229 if (!TARGET_NO_SPACE_REGS
231 && GET_CODE (XEXP (op, 0)) == PLUS
232 && REG_P (XEXP (XEXP (op, 0), 0))
233 && REG_P (XEXP (XEXP (op, 0), 1)))
236 return memory_address_p (mode, XEXP (op, 0));
239 ;; Accept anything that can be used as the source operand for a
240 ;; prefetch instruction with a cache-control completer.
242 (define_predicate "prefetch_cc_operand"
245 if (GET_CODE (op) != MEM)
250 /* We must reject virtual registers as we don't allow REG+D. */
251 if (op == virtual_incoming_args_rtx
252 || op == virtual_stack_vars_rtx
253 || op == virtual_stack_dynamic_rtx
254 || op == virtual_outgoing_args_rtx
255 || op == virtual_cfa_rtx)
258 if (!REG_P (op) && !IS_INDEX_ADDR_P (op))
261 /* Until problems with management of the REG_POINTER flag are resolved,
262 we need to delay creating prefetch insns with unscaled indexed addresses
263 until CSE is not expected. */
264 if (!TARGET_NO_SPACE_REGS
266 && GET_CODE (op) == PLUS
267 && REG_P (XEXP (op, 0)))
270 return memory_address_p (mode, op);
273 ;; Accept anything that can be used as the source operand for a
274 ;; prefetch instruction with no cache-control completer.
276 (define_predicate "prefetch_nocc_operand"
279 if (GET_CODE (op) != MEM)
284 /* Until problems with management of the REG_POINTER flag are resolved,
285 we need to delay creating prefetch insns with unscaled indexed addresses
286 until CSE is not expected. */
287 if (!TARGET_NO_SPACE_REGS
289 && GET_CODE (op) == PLUS
290 && REG_P (XEXP (op, 0))
291 && REG_P (XEXP (op, 1)))
294 return memory_address_p (mode, op);
297 ;; Accept REG and any CONST_INT that can be moved in one instruction
298 ;; into a general register.
300 (define_predicate "reg_or_cint_move_operand"
301 (match_code "subreg,reg,const_int")
303 if (register_operand (op, mode))
306 return (GET_CODE (op) == CONST_INT && cint_ok_for_move (INTVAL (op)));
309 ;; TODO: Add a comment here.
311 (define_predicate "pic_label_operand"
312 (match_code "label_ref,const")
317 switch (GET_CODE (op))
323 return (GET_CODE (XEXP (op, 0)) == LABEL_REF
324 && GET_CODE (XEXP (op, 1)) == CONST_INT);
330 ;; TODO: Add a comment here.
332 (define_predicate "fp_reg_operand"
335 return reg_renumber && FP_REG_P (op);
338 ;; Return truth value of whether OP can be used as an operand in a
339 ;; three operand arithmetic insn that accepts registers of mode MODE
340 ;; or 14-bit signed integers.
342 (define_predicate "arith_operand"
343 (match_code "subreg,reg,const_int")
345 return (register_operand (op, mode)
346 || (GET_CODE (op) == CONST_INT && INT_14_BITS (op)));
349 ;; Return truth value of whether OP can be used as an operand in a
350 ;; three operand arithmetic insn that accepts registers of mode MODE
351 ;; or 11-bit signed integers.
353 (define_predicate "arith11_operand"
354 (match_code "subreg,reg,const_int")
356 return (register_operand (op, mode)
357 || (GET_CODE (op) == CONST_INT && INT_11_BITS (op)));
360 ;; A constant integer suitable for use in a PRE_MODIFY memory
363 (define_predicate "pre_cint_operand"
364 (match_code "const_int")
366 return (GET_CODE (op) == CONST_INT
367 && INTVAL (op) >= -0x2000 && INTVAL (op) < 0x10);
370 ;; A constant integer suitable for use in a POST_MODIFY memory
373 (define_predicate "post_cint_operand"
374 (match_code "const_int")
376 return (GET_CODE (op) == CONST_INT
377 && INTVAL (op) < 0x2000 && INTVAL (op) >= -0x10);
380 ;; TODO: Add a comment here.
382 (define_predicate "arith_double_operand"
383 (match_code "subreg,reg,const_double")
385 return (register_operand (op, mode)
386 || (GET_CODE (op) == CONST_DOUBLE
387 && GET_MODE (op) == mode
388 && VAL_14_BITS_P (CONST_DOUBLE_LOW (op))
389 && ((CONST_DOUBLE_HIGH (op) >= 0)
390 == ((CONST_DOUBLE_LOW (op) & 0x1000) == 0))));
393 ;; Return truth value of whether OP is an integer which fits the range
394 ;; constraining immediate operands in three-address insns, or is an
397 (define_predicate "ireg_or_int5_operand"
398 (match_code "const_int,reg")
400 return ((GET_CODE (op) == CONST_INT && INT_5_BITS (op))
401 || (GET_CODE (op) == REG && REGNO (op) > 0 && REGNO (op) < 32));
404 ;; Return truth value of whether OP is an integer which fits the range
405 ;; constraining immediate operands in three-address insns.
407 (define_predicate "int5_operand"
408 (match_code "const_int")
410 return (GET_CODE (op) == CONST_INT && INT_5_BITS (op));
413 ;; Return truth value of whether OP is an integer which fits the range
414 ;; constraining immediate operands in three-address insns.
416 (define_predicate "uint5_operand"
417 (match_code "const_int")
419 return (GET_CODE (op) == CONST_INT && INT_U5_BITS (op));
422 ;; Return truth value of whether OP is an integer which fits the range
423 ;; constraining immediate operands in three-address insns.
425 (define_predicate "int11_operand"
426 (match_code "const_int")
428 return (GET_CODE (op) == CONST_INT && INT_11_BITS (op));
431 ;; Return truth value of whether OP is an integer which fits the range
432 ;; constraining immediate operands in three-address insns.
434 (define_predicate "uint32_operand"
435 (match_code "const_int,const_double")
437 #if HOST_BITS_PER_WIDE_INT > 32
438 /* All allowed constants will fit a CONST_INT. */
439 return (GET_CODE (op) == CONST_INT
440 && (INTVAL (op) >= 0 && INTVAL (op) < (HOST_WIDE_INT) 1 << 32));
442 return (GET_CODE (op) == CONST_INT
443 || (GET_CODE (op) == CONST_DOUBLE
444 && CONST_DOUBLE_HIGH (op) == 0));
448 ;; Return truth value of whether OP is an integer which fits the range
449 ;; constraining immediate operands in three-address insns.
451 (define_predicate "arith5_operand"
452 (match_code "subreg,reg,const_int")
454 return register_operand (op, mode) || int5_operand (op, mode);
457 ;; True iff depi or extru can be used to compute (reg & OP).
459 (define_predicate "and_operand"
460 (match_code "subreg,reg,const_int")
462 return (register_operand (op, mode)
463 || (GET_CODE (op) == CONST_INT && and_mask_p (INTVAL (op))));
466 ;; True iff depi can be used to compute (reg | OP).
468 (define_predicate "ior_operand"
469 (match_code "const_int")
471 return (GET_CODE (op) == CONST_INT && ior_mask_p (INTVAL (op)));
474 ;; True iff OP is a CONST_INT of the forms 0...0xxxx or
475 ;; 0...01...1xxxx. Such values can be the left hand side x in (x <<
476 ;; r), using the zvdepi instruction.
478 (define_predicate "lhs_lshift_cint_operand"
479 (match_code "const_int")
481 unsigned HOST_WIDE_INT x;
482 if (GET_CODE (op) != CONST_INT)
484 x = INTVAL (op) >> 4;
485 return (x & (x + 1)) == 0;
488 ;; TODO: Add a comment here.
490 (define_predicate "lhs_lshift_operand"
491 (match_code "subreg,reg,const_int")
493 return register_operand (op, mode) || lhs_lshift_cint_operand (op, mode);
496 ;; TODO: Add a comment here.
498 (define_predicate "arith32_operand"
499 (match_code "subreg,reg,const_int")
501 return register_operand (op, mode) || GET_CODE (op) == CONST_INT;
504 ;; TODO: Add a comment here.
506 (define_predicate "pc_or_label_operand"
507 (match_code "pc,label_ref")
509 return (GET_CODE (op) == PC || GET_CODE (op) == LABEL_REF);
512 ;; TODO: Add a comment here.
514 (define_predicate "plus_xor_ior_operator"
515 (match_code "plus,xor,ior")
517 return (GET_CODE (op) == PLUS || GET_CODE (op) == XOR
518 || GET_CODE (op) == IOR);
521 ;; Return 1 if OP is a CONST_INT with the value 2, 4, or 8. These are
522 ;; the valid constant for shadd instructions.
524 (define_predicate "shadd_operand"
525 (match_code "const_int")
527 return (GET_CODE (op) == CONST_INT && shadd_constant_p (INTVAL (op)));
530 ;; TODO: Add a comment here.
532 (define_predicate "div_operand"
533 (match_code "reg,const_int")
535 return (mode == SImode
536 && ((GET_CODE (op) == REG && REGNO (op) == 25)
537 || (GET_CODE (op) == CONST_INT && INTVAL (op) > 0
538 && INTVAL (op) < 16 && magic_milli[INTVAL (op)])));
541 ;; Return nonzero if OP is an integer register, else return zero.
543 (define_predicate "ireg_operand"
546 return (GET_CODE (op) == REG && REGNO (op) > 0 && REGNO (op) < 32);
549 ;; Return 1 if this is a comparison operator. This allows the use of
550 ;; MATCH_OPERATOR to recognize all the branch insns.
552 (define_predicate "cmpib_comparison_operator"
553 (match_code "eq,ne,lt,le,leu,gt,gtu,ge")
555 return ((mode == VOIDmode || GET_MODE (op) == mode)
556 && (GET_CODE (op) == EQ
557 || GET_CODE (op) == NE
558 || GET_CODE (op) == GT
559 || GET_CODE (op) == GTU
560 || GET_CODE (op) == GE
561 || GET_CODE (op) == LT
562 || GET_CODE (op) == LE
563 || GET_CODE (op) == LEU));
566 ;; Return 1 if OP is an operator suitable for use in a movb
569 (define_predicate "movb_comparison_operator"
570 (match_code "eq,ne,lt,ge")
572 return (GET_CODE (op) == EQ || GET_CODE (op) == NE
573 || GET_CODE (op) == LT || GET_CODE (op) == GE);