From: epetrich <epetrich@4a8a32a2-be11-0410-ad9d-d568d2c75423>
Date: Thu, 2 Sep 2004 14:24:21 +0000 (+0000)
Subject: * src/hc08/ralloc.c (canDefAccResult): multi-byte shift is unsafe for
X-Git-Url: https://git.gag.com/?a=commitdiff_plain;h=7860ea6460151466a37ba9471227ff59d7c95ab6;p=fw%2Fsdcc

* 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
---

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 '*':