From 5e004c9f67d0a1d4a401015358cb12e1d3d3668f Mon Sep 17 00:00:00 2001
From: frief <frief@4a8a32a2-be11-0410-ad9d-d568d2c75423>
Date: Thu, 2 Dec 2004 08:08:42 +0000
Subject: [PATCH] fixed bug #1076940

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@3594 4a8a32a2-be11-0410-ad9d-d568d2c75423
---
 src/mcs51/peeph.def | 23 ++++++++++++++---------
 1 file changed, 14 insertions(+), 9 deletions(-)

diff --git a/src/mcs51/peeph.def b/src/mcs51/peeph.def
index 1e44366c..eae66f0a 100644
--- a/src/mcs51/peeph.def
+++ b/src/mcs51/peeph.def
@@ -1082,15 +1082,20 @@ replace {
 
 // applies to f.e. bug-408972.c
 // not before peephole 177.c
-replace restart {
-	mov	%1,%2
-	mov	%3,%4
-	mov	%2,%1
-} by {
-	;	Peephole 177.d	removed redundant move
-	mov	%1,%2
-	mov	%3,%4
-} if notVolatile %1 %2
+// Bug #1076940, this rule erroneously applies to:
+//	mov	a,r2
+//	mov	acc.0,c
+//	mov	r2,a
+//
+//replace restart {
+//	mov	%1,%2
+//	mov	%3,%4
+//	mov	%2,%1
+//} by {
+//	;	Peephole 177.d	removed redundant move
+//	mov	%1,%2
+//	mov	%3,%4
+//} if notVolatile %1 %2
 
 // applies to f.e. bug-607243.c
 // also check notVolatile %3, as it will return FALSE if it's @r%1
-- 
2.47.2