From 31a01ee3cbfb655a4a75b80f32bb21999c8f3559 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.

llvm-svn: 116533
---
 llvm/lib/Analysis/TypeBasedAliasAnalysis.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'llvm/lib')

diff --git a/llvm/lib/Analysis/TypeBasedAliasAnalysis.cpp b/llvm/lib/Analysis/TypeBasedAliasAnalysis.cpp
index 546991ea0e4..7955ab753a0 100644
--- a/llvm/lib/Analysis/TypeBasedAliasAnalysis.cpp
+++ b/llvm/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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