From: sandeep <sandeep@4a8a32a2-be11-0410-ad9d-d568d2c75423>
Date: Sat, 10 Nov 2001 23:41:22 +0000 (+0000)
Subject: Minor impreovement to cse - prefer register equivalent (if iTemps share the
X-Git-Url: https://git.gag.com/?a=commitdiff_plain;h=52e2daedcc037e356cfe151a7e037690c02cd3f9;p=fw%2Fsdcc

Minor impreovement to cse - prefer register equivalent (if iTemps share the
same spil location)


git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@1557 4a8a32a2-be11-0410-ad9d-d568d2c75423
---

diff --git a/src/SDCCcse.c b/src/SDCCcse.c
index 1b496915..1f444374 100644
--- a/src/SDCCcse.c
+++ b/src/SDCCcse.c
@@ -276,6 +276,7 @@ DEFSETFUNC (findCheaperOp)
 		IS_ITEMP (IC_RESULT (cdp->diCode)) &&
 		IS_ITEMP (IC_RIGHT (cdp->diCode)) &&
 		!OP_SYMBOL (IC_RIGHT (cdp->diCode))->isind &&
+		!OP_SYMBOL(IC_RIGHT (cdp->diCode))->isreqv &&
 		((!SPIL_LOC (IC_RIGHT (cdp->diCode)) &&
 		  SPIL_LOC (IC_RESULT (cdp->diCode))) ||
 		 (SPIL_LOC (IC_RESULT (cdp->diCode)) &&
@@ -301,7 +302,8 @@ DEFSETFUNC (findCheaperOp)
     *opp = IC_RESULT (cdp->diCode);
 
   if ((*opp) && 
-      (isOperandLiteral(*opp) ||
+      (isOperandLiteral(*opp) || 
+       getSize(operandType(*opp)) == getSize(operandType(cop)) ||
        (SPEC_USIGN(operandType (cop))==SPEC_USIGN(operandType (*opp)) &&
 	(SPEC_LONG(operandType (cop))==SPEC_LONG(operandType (*opp))))))
     {