From: Devang Patel <dpatel@apple.com>
Date: Wed, 30 Sep 2009 21:26:51 +0000 (+0000)
Subject: Check for null MDNode element while printing comment.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=4d7a2061f147cf64c0cdd36e67ca71e1d89c16f3;p=oota-llvm.git

Check for null MDNode element while printing comment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83172 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/VMCore/AsmWriter.cpp b/lib/VMCore/AsmWriter.cpp
index fbd62dd0728..34ce7bb9964 100644
--- a/lib/VMCore/AsmWriter.cpp
+++ b/lib/VMCore/AsmWriter.cpp
@@ -874,7 +874,7 @@ static void WriteMDNodeComment(const MDNode *Node,
 			       formatted_raw_ostream &Out) {
   if (Node->getNumElements() < 1)
     return;
-  ConstantInt *CI = dyn_cast<ConstantInt>(Node->getElement(0));
+  ConstantInt *CI = dyn_cast_or_null<ConstantInt>(Node->getElement(0));
   if (!CI) return;
   unsigned Val = CI->getZExtValue();
   unsigned Tag = Val & ~LLVMDebugVersionMask;