From d089f4e10b117bcd8023c5ef53bc4100eb107197 Mon Sep 17 00:00:00 2001
From: Victor Hernandez <vhernandez@apple.com>
Date: Thu, 21 Jan 2010 19:26:20 +0000
Subject: No need to map NULL operands of metadata

llvm-svn: 94091
---
 llvm/lib/Transforms/Utils/ValueMapper.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'llvm/lib/Transforms/Utils/ValueMapper.cpp')

diff --git a/llvm/lib/Transforms/Utils/ValueMapper.cpp b/llvm/lib/Transforms/Utils/ValueMapper.cpp
index e3ef79f..2a79b72 100644
--- a/llvm/lib/Transforms/Utils/ValueMapper.cpp
+++ b/llvm/lib/Transforms/Utils/ValueMapper.cpp
@@ -39,7 +39,7 @@ Value *llvm::MapValue(const Value *V, ValueMapTy &VM) {
     const MDNode *MD = dyn_cast<MDNode>(V);
     SmallVector<Value*, 4> Elts;
     for (unsigned i = 0; i != MD->getNumOperands(); i++)
-      Elts.push_back(MapValue(MD->getOperand(i), VM));
+      Elts.push_back(MD->getOperand(i) ? MapValue(MD->getOperand(i), VM) : NULL);
     return VM[V] = MDNode::get(V->getContext(), Elts.data(), Elts.size());
   }
 
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