From 9a5582f2516634f5b66c9bbdbab5360d6eb3ef35 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Tue, 27 Sep 2005 22:28:11 +0000
Subject: [PATCH] Fix a regression in my previous patch, fixing
 GlobalOpt/2005-09-27-Crash.ll and PR632.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23484 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Transforms/IPO/GlobalOpt.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Transforms/IPO/GlobalOpt.cpp b/lib/Transforms/IPO/GlobalOpt.cpp
index 3b2eee05314..839d7769ef7 100644
--- a/lib/Transforms/IPO/GlobalOpt.cpp
+++ b/lib/Transforms/IPO/GlobalOpt.cpp
@@ -337,7 +337,7 @@ static bool CleanupConstantGlobalUsers(Value *V, Constant *Init) {
       Constant *SubInit = 0;
       ConstantExpr *CE = 
         dyn_cast_or_null<ConstantExpr>(ConstantFoldInstruction(GEP));
-      if (CE && CE->getOpcode() == Instruction::GetElementPtr)
+      if (Init && CE && CE->getOpcode() == Instruction::GetElementPtr)
         SubInit = ConstantFoldLoadThroughGEPConstantExpr(Init, CE);
       Changed |= CleanupConstantGlobalUsers(GEP, SubInit);