From: Chris Lattner <sabre@nondot.org>
Date: Tue, 27 Sep 2005 22:28:11 +0000 (+0000)
Subject: Fix a regression in my previous patch, fixing GlobalOpt/2005-09-27-Crash.ll
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=9a5582f2516634f5b66c9bbdbab5360d6eb3ef35;p=oota-llvm.git

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
---

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);