From 7860ea6460151466a37ba9471227ff59d7c95ab6 Mon Sep 17 00:00:00 2001
From: epetrich <epetrich@4a8a32a2-be11-0410-ad9d-d568d2c75423>
Date: Thu, 2 Sep 2004 14:24:21 +0000
Subject: [PATCH] * src/hc08/ralloc.c (canDefAccResult): multi-byte shift is
 unsafe for accumulator result if it needs sign extension

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@3474 4a8a32a2-be11-0410-ad9d-d568d2c75423
---
 ChangeLog         | 5 +++++
 src/hc08/ralloc.c | 3 ++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 9e1e06ef..437444f2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2004-09-02 Erik Petrich <epetrich AT ivorytower.norman.ok.us>
+
+	* src/hc08/ralloc.c (canDefAccResult): multi-byte shift is unsafe for
+	accumulator result if it needs sign extension
+
 2004-09-02 Maarten Brock <sourceforge.brock AT dse.nl>
 
 	* src/hc08/ralloc.c (canUseAccOperand): fixed comparison bug
diff --git a/src/hc08/ralloc.c b/src/hc08/ralloc.c
index a91e687f..fdb71ba6 100644
--- a/src/hc08/ralloc.c
+++ b/src/hc08/ralloc.c
@@ -2538,7 +2538,8 @@ canDefAccResult (iCode * ic)
         {
         case LEFT_OP:
         case RIGHT_OP:
-          return isOperandLiteral (IC_RIGHT (ic));
+          return isOperandLiteral (IC_RIGHT (ic))
+                  && SPEC_USIGN (operandType (IC_RESULT (ic)));
         case CALL:
         case PCALL:
         case '*':
-- 
2.30.2