From: johanknol <johanknol@4a8a32a2-be11-0410-ad9d-d568d2c75423>
Date: Wed, 31 Oct 2001 15:39:35 +0000 (+0000)
Subject: fixed bug #476683
X-Git-Url: https://git.gag.com/?a=commitdiff_plain;h=9c05fe56cafdd7627d727ec549972b29472f7512;p=fw%2Fsdcc

fixed bug #476683


git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@1478 4a8a32a2-be11-0410-ad9d-d568d2c75423
---

diff --git a/src/SDCCcse.c b/src/SDCCcse.c
index 2af50769..18ca4ea6 100644
--- a/src/SDCCcse.c
+++ b/src/SDCCcse.c
@@ -394,6 +394,20 @@ DEFSETFUNC (findPrevIc)
   return 0;
 }
 
+/*-------------------------------------------------------------------*/
+/* ifAssignedFromGlobal - if definition is an assignment from global */
+/*-------------------------------------------------------------------*/
+DEFSETFUNC (ifAssignedFromGlobal)
+{
+  cseDef *cdp = item;
+  iCode *dic=cdp->diCode;
+
+  if (dic->op=='=' && isOperandGlobal(IC_RIGHT(dic))) {
+    return 1;
+  }
+  return 0;
+}
+
 /*-----------------------------------------------------------------*/
 /* ifDefGlobal - if definition is global                           */
 /*-----------------------------------------------------------------*/
@@ -1317,6 +1331,10 @@ cseBBlock (eBBlock * ebb, int computeOnly,
 	  /* delete global variables from the cseSet
 	     since they can be modified by the function call */
 	  deleteItemIf (&cseSet, ifDefGlobal);
+
+	  /* and also itemps assigned from globals */
+	  deleteItemIf (&cseSet, ifAssignedFromGlobal);
+
 	  /* delete all getpointer iCodes from cseSet, this should
 	     be done only for global arrays & pointers but at this
 	     point we don't know if globals, so to be safe do all */
@@ -1474,7 +1492,6 @@ cseBBlock (eBBlock * ebb, int computeOnly,
 	  applyToSetFTrue (cseSet, findCheaperOp, IC_RIGHT (ic), &pdop);
 	  if (pdop)
 	    {
-
 	      IC_RIGHT (ic) = pdop;
 	      change = 1;
 	    }