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* [gcc r12-2724] Refine predicate of peephole2 to general_reg_operand. [PR target/101743]
@ 2021-08-04 9:43 hongtao Liu
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From: hongtao Liu @ 2021-08-04 9:43 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:9f26640f7b89c771b0ebffd7e7f5019d0709a955
commit r12-2724-g9f26640f7b89c771b0ebffd7e7f5019d0709a955
Author: liuhongt <hongtao.liu@intel.com>
Date: Wed Aug 4 10:50:28 2021 +0800
Refine predicate of peephole2 to general_reg_operand. [PR target/101743]
The define_peephole2 which is added by r12-2640-gf7bf03cf69ccb7dc
should only work on general registers, considering that x86 also
supports mov instructions between gpr, sse reg, mask reg, limiting the
peephole2 predicate to general_reg_operand.
gcc/ChangeLog:
PR target/101743
* config/i386/i386.md (peephole2): Refine predicate from
register_operand to general_reg_operand.
Diff:
---
gcc/config/i386/i386.md | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index 0c23ddb8d1f..51e8b475bca 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -19423,11 +19423,11 @@
;; Eliminate a reg-reg mov by inverting the condition of a cmov (#1).
;; mov r0,r1; dec r0; mov r2,r3; cmov r0,r2 -> dec r1; mov r0,r3; cmov r0, r1
(define_peephole2
- [(set (match_operand:SWI248 0 "register_operand")
- (match_operand:SWI248 1 "register_operand"))
+ [(set (match_operand:SWI248 0 "general_reg_operand")
+ (match_operand:SWI248 1 "general_reg_operand"))
(parallel [(set (reg FLAGS_REG) (match_operand 5))
(set (match_dup 0) (match_operand:SWI248 6))])
- (set (match_operand:SWI248 2 "register_operand")
+ (set (match_operand:SWI248 2 "general_reg_operand")
(match_operand:SWI248 3))
(set (match_dup 0)
(if_then_else:SWI248 (match_operator 4 "ix86_comparison_operator"
@@ -19455,10 +19455,10 @@
;; Eliminate a reg-reg mov by inverting the condition of a cmov (#2).
;; mov r2,r3; mov r0,r1; dec r0; cmov r0,r2 -> dec r1; mov r0,r3; cmov r0, r1
(define_peephole2
- [(set (match_operand:SWI248 2 "register_operand")
+ [(set (match_operand:SWI248 2 "general_reg_operand")
(match_operand:SWI248 3))
- (set (match_operand:SWI248 0 "register_operand")
- (match_operand:SWI248 1 "register_operand"))
+ (set (match_operand:SWI248 0 "general_reg_operand")
+ (match_operand:SWI248 1 "general_reg_operand"))
(parallel [(set (reg FLAGS_REG) (match_operand 5))
(set (match_dup 0) (match_operand:SWI248 6))])
(set (match_dup 0)
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2021-08-04 9:43 [gcc r12-2724] Refine predicate of peephole2 to general_reg_operand. [PR target/101743] hongtao Liu
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