From f3e486e069011c70abb771958dc1218912b98eea Mon Sep 17 00:00:00 2001
From: Evan Cheng <evan.cheng@apple.com>
Date: Wed, 29 Nov 2006 01:58:12 +0000
Subject: [PATCH] Fix for PR1023 by Dan Gohman.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32003 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 3a4e457161e..570cac8e261 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -3376,7 +3376,7 @@ void SelectionDAGLowering::visitMemIntrinsic(CallInst &I, unsigned Op) {
         }
         if (G) {
           GlobalVariable *GV = dyn_cast<GlobalVariable>(G->getGlobal());
-          if (GV) {
+          if (GV && GV->isConstant()) {
             Str = GV->getStringValue(false);
             if (!Str.empty()) {
               CopyFromStr = true;