From: liuhongt <hongtao.liu@intel.com>
Date: Wed, 4 Aug 2021 02:50:28 +0000 (+0800)
Subject: Refine predicate of peephole2 to general_reg_operand. [PR target/101743]
X-Git-Tag: basepoints/gcc-13~5589
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9f26640f7b89c771b0ebffd7e7f5019d0709a955;p=thirdparty%2Fgcc.git

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 --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index 0c23ddb8d1f4..51e8b475bca3 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)