From 493444fc19af23c46d14e30a66af6d681bf35dd7 Mon Sep 17 00:00:00 2001
From: Ted Kremenek <kremenek@apple.com>
Date: Wed, 16 Jan 2008 22:20:36 +0000
Subject: [PATCH] Fixed bug where we performed addition instead of subtraction
 during constant propagation.

llvm-svn: 46095
---
 clang/Analysis/GRConstants.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/clang/Analysis/GRConstants.cpp b/clang/Analysis/GRConstants.cpp
index 82402559f23b..2173f9b671b2 100644
--- a/clang/Analysis/GRConstants.cpp
+++ b/clang/Analysis/GRConstants.cpp
@@ -134,7 +134,7 @@ public:
   
   ExprVariantTy operator-(const ExprVariantTy& X) const {
     if (!isConstant || !X.isConstant) return ExprVariantTy();
-    else return ExprVariantTy(val+X.val);
+    else return ExprVariantTy(val-X.val);
   }    
 };
 } // end anonymous namespace