1 ;; Predicate definitions for HP PA-RISC.
2 ;; Copyright (C) 2005-2016 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 ;; Return truth value of whether OP is an integer which fits the range
21 ;; constraining 5-bit signed immediate operands in three-address insns.
23 (define_predicate "int5_operand"
24 (and (match_code "const_int")
25 (match_test "INT_5_BITS (op)")))
27 ;; Return truth value of whether OP is an integer which fits the range
28 ;; constraining 5-bit unsigned immediate operands in three-address insns.
30 (define_predicate "uint5_operand"
31 (and (match_code "const_int")
32 (match_test "INT_U5_BITS (op)")))
34 ;; Return truth value of whether OP is an integer which fits the range
35 ;; constraining 6-bit unsigned immediate operands in three-address insns.
37 (define_predicate "uint6_operand"
38 (and (match_code "const_int")
39 (match_test "INT_U6_BITS (op)")))
41 ;; Return truth value of whether OP is an integer which fits the range
42 ;; constraining 11-bit signed immediate operands in three-address insns.
44 (define_predicate "int11_operand"
45 (and (match_code "const_int")
46 (match_test "INT_11_BITS (op)")))
48 ;; Return truth value of whether OP is an integer which fits the range
49 ;; constraining 14-bit signed immediate operands in three-address insns.
51 (define_predicate "int14_operand"
52 (and (match_code "const_int")
53 (match_test "INT_14_BITS (op)")))
55 ;; True iff OP is a const_int or const_double that will fit in 32 bits.
57 (define_predicate "uint32_operand"
58 (if_then_else (match_test "HOST_BITS_PER_WIDE_INT > 32")
59 (and (match_code "const_int")
60 (match_test "INTVAL (op) >= 0
61 && INTVAL (op) < (HOST_WIDE_INT) 1 << 32"))
62 (and (match_code "const_int,const_double")
63 (match_test "CONST_INT_P (op) || CONST_DOUBLE_HIGH (op) == 0"))))
65 ;; True iff depi can be used to compute (reg | OP).
67 (define_predicate "cint_ior_operand"
68 (and (match_code "const_int")
69 (match_test "pa_ior_mask_p (INTVAL (op))")))
71 ;; True iff OP is CONST_INT that can be moved in one instruction
72 ;; into a general register.
74 (define_predicate "cint_move_operand"
75 (and (match_code "const_int")
76 (match_test "pa_cint_ok_for_move (INTVAL (op))")))
78 ;; True iff OP is a CONST0_RTX for MODE.
80 (define_predicate "const_0_operand"
81 (and (match_code "const_int,const_double")
82 (match_test "op == CONST0_RTX (mode)")))
84 ;; A constant integer suitable for use in a PRE_MODIFY memory reference.
86 (define_predicate "pre_cint_operand"
87 (and (match_code "const_int")
88 (match_test "INTVAL (op) >= -0x2000 && INTVAL (op) < 0x10")))
90 ;; A constant integer suitable for use in a POST_MODIFY memory reference.
92 (define_predicate "post_cint_operand"
93 (and (match_code "const_int")
94 (match_test "INTVAL (op) < 0x2000 && INTVAL (op) >= -0x10")))
96 ;; True iff depi or extru can be used to compute (reg & OP).
98 (define_predicate "and_operand"
99 (ior (match_operand 0 "register_operand")
100 (and (match_code "const_int")
101 (match_test "pa_and_mask_p (INTVAL (op))"))))
103 ;; Return truth value of whether OP can be used as an operand in a
104 ;; three operand arithmetic insn that accepts registers of mode MODE
105 ;; or 5-bit signed integers.
107 (define_predicate "arith5_operand"
108 (ior (match_operand 0 "register_operand")
109 (match_operand 0 "int5_operand")))
111 ;; Return truth value of whether OP can be used as an operand in a
112 ;; three operand arithmetic insn that accepts registers of mode MODE
113 ;; or 11-bit signed integers.
115 (define_predicate "arith11_operand"
116 (ior (match_operand 0 "register_operand")
117 (match_operand 0 "int11_operand")))
119 ;; Return truth value of whether OP can be used as an operand in a
120 ;; three operand arithmetic insn that accepts registers of mode MODE
121 ;; or 14-bit signed integers.
123 (define_predicate "arith14_operand"
124 (ior (match_operand 0 "register_operand")
125 (match_operand 0 "int14_operand")))
127 ;; Return truth value of whether OP can be used as an operand in a
128 ;; three operand arithmetic insn that accepts registers of mode MODE
129 ;; or 32-bit signed integers.
131 (define_predicate "arith32_operand"
132 (ior (match_operand 0 "register_operand")
133 (match_code "const_int")))
135 ;; Return truth value of whether OP can be used as a shift operand in
136 ;; a shift insn that accepts registers of mode MODE or 5-bit shift amounts.
138 (define_predicate "shift5_operand"
139 (ior (match_operand 0 "register_operand")
140 (match_operand 0 "uint5_operand")))
142 ;; Return truth value of whether OP can be used as a shift operand in
143 ;; a shift insn that accepts registers of mode MODE or 6-bit shift amounts.
145 (define_predicate "shift6_operand"
146 (ior (match_operand 0 "register_operand")
147 (match_operand 0 "uint6_operand")))
149 ;; True iff OP can be used as an operand in an adddi3 insn.
151 (define_predicate "adddi3_operand"
152 (if_then_else (match_test "TARGET_64BIT")
153 (match_operand 0 "arith14_operand")
154 (match_operand 0 "arith11_operand")))
156 ;; True iff OP is valid as a base or index register in a REG+REG address.
158 (define_predicate "borx_reg_operand"
161 /* We must reject virtual registers as the only expressions that
162 can be instantiated are REG and REG+CONST. */
163 if (op == virtual_incoming_args_rtx
164 || op == virtual_stack_vars_rtx
165 || op == virtual_stack_dynamic_rtx
166 || op == virtual_outgoing_args_rtx
167 || op == virtual_cfa_rtx)
170 /* While it's always safe to index off the frame pointer, it's not
171 profitable to do so when the frame pointer is being eliminated. */
172 if (!reload_completed
173 && flag_omit_frame_pointer
174 && !cfun->calls_alloca
175 && op == frame_pointer_rtx)
178 return register_operand (op, mode);
181 ;; Return nonzero if OP is suitable for use in a call to a named
184 ;; For 2.5 try to eliminate either call_operand_address or
185 ;; function_label_operand, they perform very similar functions.
187 (define_predicate "call_operand_address"
188 (match_code "label_ref,symbol_ref,const_int,const_double,const,high")
190 return (GET_MODE (op) == word_mode
191 && CONSTANT_P (op) && ! TARGET_PORTABLE_RUNTIME);
194 ;; True iff OP can be used as the divisor in a div millicode call.
196 (define_predicate "div_operand"
197 (match_code "reg,const_int")
199 return (mode == SImode
200 && ((REG_P (op) && REGNO (op) == 25)
202 && INTVAL (op) > 0 && INTVAL (op) < 16
203 && pa_magic_milli[INTVAL (op)])));
206 ;; True iff OP is a reloading floating point register
208 (define_predicate "fp_reg_operand"
209 (and (match_code "reg")
210 (match_test "reg_renumber && FP_REG_P (op)")))
212 ;; True iff OP is a function label operand.
214 (define_special_predicate "function_label_operand"
215 (and (match_code "symbol_ref")
216 (match_test "FUNCTION_NAME_P (XSTR (op, 0))")))
218 ;; True iff OP is an indexed memory operand.
220 (define_predicate "indexed_memory_operand"
221 (match_code "subreg,mem")
223 if (GET_MODE (op) != mode)
226 /* Before reload, a (SUBREG (MEM...)) forces reloading into a register. */
227 if (reload_completed && GET_CODE (op) == SUBREG)
228 op = SUBREG_REG (op);
234 return IS_INDEX_ADDR_P (op) && memory_address_p (mode, op);
237 ;; True iff OP is a register plus base memory operand.
239 (define_predicate "reg_plus_base_memory_operand"
240 (match_code "subreg,mem")
242 if (GET_MODE (op) != mode)
245 /* Before reload, a (SUBREG (MEM...)) forces reloading into a register. */
246 if (reload_completed && GET_CODE (op) == SUBREG)
247 op = SUBREG_REG (op);
253 if (GET_CODE (op) != PLUS)
256 if (REG_P (XEXP (op, 0)) && REG_OK_FOR_BASE_P (XEXP (op, 0)))
257 return GET_CODE (XEXP (op, 1)) == CONST_INT;
262 ;; True iff OP is a base14 operand.
264 (define_predicate "base14_operand"
265 (match_code "const_int")
267 if (!INT_14_BITS (op))
270 /* Although this may not be necessary, we require that the
271 base value is correctly aligned for its mode as this is
272 assumed in the instruction encoding. */
281 return (INTVAL (op) % GET_MODE_SIZE (mode)) == 0;
287 ;; True iff the operand OP can be used as the destination operand of
288 ;; an integer store. This also implies the operand could be used as
289 ;; the source operand of an integer load. LO_SUM DLT and indexed
290 ;; memory operands are not allowed. We accept reloading pseudos and
291 ;; other memory operands.
293 (define_predicate "integer_store_memory_operand"
294 (match_code "reg,mem")
296 if (reload_in_progress
298 && REGNO (op) >= FIRST_PSEUDO_REGISTER
299 && reg_renumber [REGNO (op)] < 0)
302 if (reg_plus_base_memory_operand (op, mode))
304 if (reload_in_progress)
307 /* Extract CONST_INT operand. */
308 if (GET_CODE (op) == SUBREG)
309 op = SUBREG_REG (op);
311 op = REG_P (XEXP (op, 0)) ? XEXP (op, 1) : XEXP (op, 0);
312 return base14_operand (op, mode) || INT_5_BITS (op);
318 return ((reload_in_progress || memory_address_p (mode, XEXP (op, 0)))
319 && !IS_LO_SUM_DLT_ADDR_P (XEXP (op, 0))
320 && !IS_INDEX_ADDR_P (XEXP (op, 0)));
323 ;; True iff the operand OP can be used as the destination operand of
324 ;; a floating point store. This also implies the operand could be used as
325 ;; the source operand of a floating point load. LO_SUM DLT and indexed
326 ;; memory operands are not allowed. Symbolic operands are accepted if
327 ;; INT14_OK_STRICT is true. We accept reloading pseudos and other memory
330 (define_predicate "floating_point_store_memory_operand"
331 (match_code "reg,mem")
333 if (reload_in_progress
335 && REGNO (op) >= FIRST_PSEUDO_REGISTER
336 && reg_renumber [REGNO (op)] < 0)
339 if (reg_plus_base_memory_operand (op, mode))
341 if (reload_in_progress)
344 /* Extract CONST_INT operand. */
345 if (GET_CODE (op) == SUBREG)
346 op = SUBREG_REG (op);
348 op = REG_P (XEXP (op, 0)) ? XEXP (op, 1) : XEXP (op, 0);
349 return ((TARGET_PA_20
351 && base14_operand (op, mode))
358 return ((reload_in_progress || memory_address_p (mode, XEXP (op, 0)))
359 && (INT14_OK_STRICT || !symbolic_memory_operand (op, VOIDmode))
360 && !IS_LO_SUM_DLT_ADDR_P (XEXP (op, 0))
361 && !IS_INDEX_ADDR_P (XEXP (op, 0)));
364 ;; Return true iff OP is an integer register.
366 (define_predicate "ireg_operand"
367 (and (match_code "reg")
368 (match_test "REGNO (op) > 0 && REGNO (op) < 32")))
370 ;; Return truth value of whether OP is an integer which fits the range
371 ;; constraining immediate operands in three-address insns, or is an
374 (define_predicate "ireg_or_int5_operand"
375 (ior (match_operand 0 "ireg_operand")
376 (match_operand 0 "int5_operand")))
378 ;; True iff OP is a CONST_INT of the forms 0...0xxxx, 0...01...1xxxx,
379 ;; or 1...1xxxx. Such values can be the left hand side x in (x << r),
380 ;; using the zvdepi instruction.
382 (define_predicate "lhs_lshift_cint_operand"
383 (match_code "const_int")
385 unsigned HOST_WIDE_INT x;
386 x = INTVAL (op) >> 4;
387 return (x & (x + 1)) == 0;
390 ;; True iff OP can be used in a zvdep instruction.
392 (define_predicate "lhs_lshift_operand"
393 (ior (match_operand 0 "register_operand")
394 (match_operand 0 "lhs_lshift_cint_operand")))
396 ;; Accept anything that can be used as a destination operand for a
397 ;; move instruction. We don't accept indexed memory operands since
398 ;; they are supported only for floating point stores.
400 (define_predicate "move_dest_operand"
401 (match_code "subreg,reg,mem")
403 if (register_operand (op, mode))
406 if (GET_MODE (op) != mode)
409 if (GET_CODE (op) == SUBREG)
410 op = SUBREG_REG (op);
417 return (memory_address_p (mode, op)
418 && !IS_INDEX_ADDR_P (op)
419 && !IS_LO_SUM_DLT_ADDR_P (op));
422 ;; Accept anything that can be used as a source operand for a move
425 (define_predicate "move_src_operand"
426 (match_code "subreg,reg,const_int,const_double,mem")
428 if (register_operand (op, mode))
431 if (op == CONST0_RTX (mode))
434 if (CONST_INT_P (op))
435 return pa_cint_ok_for_move (INTVAL (op));
437 if (GET_MODE (op) != mode)
440 if (GET_CODE (op) == SUBREG)
441 op = SUBREG_REG (op);
446 /* Until problems with management of the REG_POINTER flag are resolved,
447 we need to delay creating move insns with unscaled indexed addresses
448 until CSE is not expected. */
449 if (!TARGET_NO_SPACE_REGS
451 && GET_CODE (XEXP (op, 0)) == PLUS
452 && REG_P (XEXP (XEXP (op, 0), 0))
453 && REG_P (XEXP (XEXP (op, 0), 1)))
456 return memory_address_p (mode, XEXP (op, 0));
459 ;; True iff OP is not a symbolic memory operand.
461 (define_predicate "nonsymb_mem_operand"
462 (match_code "subreg,mem")
464 if (GET_CODE (op) == SUBREG)
465 op = SUBREG_REG (op);
470 /* Until problems with management of the REG_POINTER flag are resolved,
471 we need to delay creating move insns with unscaled indexed addresses
472 until CSE is not expected. */
473 if (!TARGET_NO_SPACE_REGS
475 && GET_CODE (XEXP (op, 0)) == PLUS
476 && REG_P (XEXP (XEXP (op, 0), 0))
477 && REG_P (XEXP (XEXP (op, 0), 1)))
480 return (!symbolic_memory_operand (op, mode)
481 && memory_address_p (mode, XEXP (op, 0)));
484 ;; True iff OP is anything other than a hard register.
486 (define_predicate "non_hard_reg_operand"
487 (match_test "! (REG_P (op) && REGNO (op) < FIRST_PSEUDO_REGISTER)"))
489 ;; True iff OP is a reference to a label whose address can be loaded
490 ;; while generating PIC code.
492 (define_predicate "pic_label_operand"
493 (match_code "label_ref,const")
498 switch (GET_CODE (op))
504 return (GET_CODE (XEXP (op, 0)) == LABEL_REF
505 && CONST_INT_P (XEXP (op, 1)));
512 ;; True iff the operand OP lives in text space. OP is a symbolic operand.
513 ;; If so, SYMBOL_REF_FLAG, which is set by pa_encode_section_info, is true.
515 (define_special_predicate "read_only_operand"
518 if (GET_CODE (op) == CONST)
519 op = XEXP (XEXP (op, 0), 0);
520 if (GET_CODE (op) == SYMBOL_REF)
523 return SYMBOL_REF_FLAG (op) && !CONSTANT_POOL_ADDRESS_P (op);
525 return SYMBOL_REF_FLAG (op) || CONSTANT_POOL_ADDRESS_P (op);
530 ;; True iff the operand is a register operand, or a non-symbolic
531 ;; memory operand after reload. A SUBREG is not accepted since it
532 ;; will need a reload.
534 ;; This predicate is used for branch patterns that internally handle
535 ;; register reloading. We need to accept non-symbolic memory operands
536 ;; after reload to ensure that the pattern is still valid if reload
537 ;; didn't find a hard register for the operand. We also reject index
538 ;; and lo_sum DLT address as these are invalid for move destinations.
540 (define_predicate "reg_before_reload_operand"
541 (match_code "reg,mem")
545 if (register_operand (op, mode))
548 if (!reload_in_progress && !reload_completed)
556 return (memory_address_p (mode, op0)
557 && !IS_INDEX_ADDR_P (op0)
558 && !IS_LO_SUM_DLT_ADDR_P (op0)
559 && !symbolic_memory_operand (op, mode));
562 ;; True iff OP is a register or const_0 operand for MODE.
564 (define_predicate "reg_or_0_operand"
565 (ior (match_operand 0 "register_operand")
566 (match_operand 0 "const_0_operand")))
568 ;; True iff OP is either a register, zero, or a non-symbolic memory operand.
570 (define_predicate "reg_or_0_or_nonsymb_mem_operand"
571 (ior (match_operand 0 "reg_or_0_operand")
572 (match_operand 0 "nonsymb_mem_operand")))
574 ;; Accept REG and any CONST_INT that can be moved in one instruction
575 ;; into a general register.
577 (define_predicate "reg_or_cint_move_operand"
578 (ior (match_operand 0 "register_operand")
579 (match_operand 0 "cint_move_operand")))
581 ;; True iff OP can be used to compute (reg | OP).
583 (define_predicate "reg_or_cint_ior_operand"
584 (ior (match_operand 0 "register_operand")
585 (match_operand 0 "cint_ior_operand")))
587 ;; Return 1 if OP is a CONST_INT with the value 2, 4, or 8. These are
588 ;; the valid constants for shadd instructions.
590 (define_predicate "mem_shadd_operand"
591 (and (match_code "const_int")
592 (match_test "pa_mem_shadd_constant_p (INTVAL (op))")))
594 (define_predicate "shadd_operand"
595 (and (match_code "const_int")
596 (match_test "pa_shadd_constant_p (INTVAL (op))")))
598 ;; Return truth value of statement that OP is a symbolic memory operand.
600 (define_predicate "symbolic_memory_operand"
601 (match_code "subreg,mem")
603 if (GET_CODE (op) == SUBREG)
604 op = SUBREG_REG (op);
608 if (GET_CODE (op) == LO_SUM)
610 return pa_symbolic_expression_p (op);
613 ;; True iff OP is a symbolic operand.
614 ;; Note: an inline copy of this code is present in pa_secondary_reload.
616 (define_predicate "symbolic_operand"
617 (match_code "symbol_ref,label_ref,const")
619 switch (GET_CODE (op))
622 return !SYMBOL_REF_TLS_MODEL (op);
627 return (GET_CODE (op) == PLUS
628 && ((GET_CODE (XEXP (op, 0)) == SYMBOL_REF
629 && !SYMBOL_REF_TLS_MODEL (XEXP (op, 0)))
630 || GET_CODE (XEXP (op, 0)) == LABEL_REF)
631 && GET_CODE (XEXP (op, 1)) == CONST_INT);
638 ;; Return true if OP is a symbolic operand for the TLS Global Dynamic model.
640 (define_predicate "tgd_symbolic_operand"
641 (and (match_code "symbol_ref")
642 (match_test "SYMBOL_REF_TLS_MODEL (op) == TLS_MODEL_GLOBAL_DYNAMIC")))
644 ;; Return true if OP is a symbolic operand for the TLS Local Dynamic model.
646 (define_predicate "tld_symbolic_operand"
647 (and (match_code "symbol_ref")
648 (match_test "SYMBOL_REF_TLS_MODEL (op) == TLS_MODEL_LOCAL_DYNAMIC")))
650 ;; Return true if OP is a symbolic operand for the TLS Initial Exec model.
652 (define_predicate "tie_symbolic_operand"
653 (and (match_code "symbol_ref")
654 (match_test "SYMBOL_REF_TLS_MODEL (op) == TLS_MODEL_INITIAL_EXEC")))
656 ;; Return true if OP is a symbolic operand for the TLS Local Exec model.
658 (define_predicate "tle_symbolic_operand"
659 (and (match_code "symbol_ref")
660 (match_test "SYMBOL_REF_TLS_MODEL (op) == TLS_MODEL_LOCAL_EXEC")))
662 ;; True iff this is a comparison operator. This allows the use of
663 ;; MATCH_OPERATOR to recognize all the branch insns.
665 (define_predicate "cmpib_comparison_operator"
666 (match_code "eq,ne,lt,le,leu,gt,gtu,ge"))
668 ;; True iff OP is an operator suitable for use in a movb instruction.
670 (define_predicate "movb_comparison_operator"
671 (match_code "eq,ne,lt,ge"))
673 ;; True iff OP is a PLUS, XOR or IOR operator.
675 (define_predicate "plus_xor_ior_operator"
676 (match_code "plus,xor,ior"))