From 98800115470de195cfb8a5f7455408e5687ce98c Mon Sep 17 00:00:00 2001
From: MaartenBrock <MaartenBrock@4a8a32a2-be11-0410-ad9d-d568d2c75423>
Date: Mon, 21 May 2007 17:23:07 +0000
Subject: [PATCH] * src/mcs51/peeph.def (257.b): disabled to fix bug 1721024

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@4808 4a8a32a2-be11-0410-ad9d-d568d2c75423
---
 ChangeLog           |  4 ++++
 src/mcs51/peeph.def | 23 ++++++++++++-----------
 2 files changed, 16 insertions(+), 11 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 5892b062..94899640 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2007-05-21 Maarten Brock <sourceforge.brock AT dse.nl>
+
+	* src/mcs51/peeph.def (257.b): disabled to fix bug 1721024
+
 2007-05-21 Raphael Neider <rneider AT web.de>
 
 	* src/pic/pcoderegs.c (pCodeOptime2pCodes): fixed bogus optimization,
diff --git a/src/mcs51/peeph.def b/src/mcs51/peeph.def
index 0cb1d8da..361f6a22 100644
--- a/src/mcs51/peeph.def
+++ b/src/mcs51/peeph.def
@@ -3851,16 +3851,17 @@ replace {
 	djnz	%1,%2
 } if notVolatile(%1)
 
-// unsigned char i=8; do{ } while(--i != 0);
-// this applies if i is kept in data memory
-replace {
-	dec	%1
-	mov	a,%1
-	jnz	%2
-} by {
-	;	Peephole 257.b	optimized decrement with compare
-	djnz	%1,%2
-} if notVolatile(%1), operandsNotRelated(%1 '@r0' '@r1')
+//// unsigned char i=8; do{ } while(--i != 0);
+//// this applies if i is kept in data memory
+// Disabled because together with 256.c it causes bug #1721024
+//replace {
+//	dec	%1
+//	mov	a,%1
+//	jnz	%2
+//} by {
+//	;	Peephole 257.b	optimized decrement with compare
+//	djnz	%1,%2
+//} if notVolatile(%1), operandsNotRelated(%1 '@r0' '@r1')
 
 
 // in_byte<<=1; if(in_bit) in_byte|=1;
@@ -4574,7 +4575,7 @@ replace restart {
 	pop	ar%1
 } by {
 	;	Peephole 300	pop ar%1 removed
-} if deadMove %1
+} if deadMove(%1)
 
 replace {
 	mov	r%1,%2
-- 
2.30.2