From c05d8aa6db088b0f2e2d569d59d87de11cec9c29 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Thu, 14 Oct 2010 22:55:57 +0000
Subject: Tolerate a null parent pointer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116533 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Analysis/TypeBasedAliasAnalysis.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'lib/Analysis/TypeBasedAliasAnalysis.cpp')

diff --git a/lib/Analysis/TypeBasedAliasAnalysis.cpp b/lib/Analysis/TypeBasedAliasAnalysis.cpp
index 546991ea0e..7955ab753a 100644
--- a/lib/Analysis/TypeBasedAliasAnalysis.cpp
+++ b/lib/Analysis/TypeBasedAliasAnalysis.cpp
@@ -52,7 +52,7 @@ namespace {
     TBAANode getParent() const {
       if (Node->getNumOperands() < 2)
         return TBAANode();
-      MDNode *P = dyn_cast<MDNode>(Node->getOperand(1));
+      MDNode *P = dyn_cast_or_null<MDNode>(Node->getOperand(1));
       if (!P)
         return TBAANode();
       // Ok, this node has a valid parent. Return it.
-- 
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