From: Ken Thompson <ken@golang.org>
Date: Tue, 8 Feb 2011 01:21:04 +0000 (-0800)
Subject: peep: fix optimization bug
X-Git-Tag: weekly.2011-02-15~75
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=e26b74152398adf6c932ddfbecec13b7131b3dae;p=gostls13.git

peep: fix optimization bug

R=r
CC=golang-dev
https://golang.org/cl/4105058
---

diff --git a/src/cmd/5g/peep.c b/src/cmd/5g/peep.c
index 783934f9d4..3b31870981 100644
--- a/src/cmd/5g/peep.c
+++ b/src/cmd/5g/peep.c
@@ -366,7 +366,8 @@ subprop(Reg *r0)
 		case ADIVD:
 		case ADIVF:
 			if(p->to.type == v1->type)
-			if(p->to.reg == v1->reg) {
+			if(p->to.reg == v1->reg)
+			if(p->scond == 0) {
 				if(p->reg == NREG)
 					p->reg = p->to.reg;
 				goto gotit;
@@ -378,6 +379,7 @@ subprop(Reg *r0)
 		case AMOVW:
 			if(p->to.type == v1->type)
 			if(p->to.reg == v1->reg)
+			if(p->scond == 0)
 				goto gotit;
 			break;