From 4ebdf5c4f587daef4e0be499802eac3a7a49bf2f Mon Sep 17 00:00:00 2001
From: Ed Schouten <ed@FreeBSD.org>
Date: Sat, 27 Jun 2009 10:45:02 +0000
Subject: Import Clang r74383.

---
 lib/CodeGen/CGExpr.cpp | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'lib/CodeGen/CGExpr.cpp')

diff --git a/lib/CodeGen/CGExpr.cpp b/lib/CodeGen/CGExpr.cpp
index 51c5b3d7dde1..a21140765c20 100644
--- a/lib/CodeGen/CGExpr.cpp
+++ b/lib/CodeGen/CGExpr.cpp
@@ -606,11 +606,12 @@ void CodeGenFunction::EmitStoreThroughExtVectorComponentLValue(RValue Src,
        cast<llvm::VectorType>(Vec->getType())->getNumElements();
     if (NumDstElts == NumSrcElts) {
       // Use shuffle vector is the src and destination are the same number
-      // of elements
-      llvm::SmallVector<llvm::Constant*, 4> Mask;
+      // of elements and restore the vector mask since it is on the side
+      // it will be stored.
+      llvm::SmallVector<llvm::Constant*, 4> Mask(NumDstElts);
       for (unsigned i = 0; i != NumSrcElts; ++i) {
         unsigned InIdx = getAccessedFieldNo(i, Elts);
-        Mask.push_back(llvm::ConstantInt::get(llvm::Type::Int32Ty, InIdx));
+        Mask[InIdx] = llvm::ConstantInt::get(llvm::Type::Int32Ty, i);
       }
     
       llvm::Value *MaskV = llvm::ConstantVector::get(&Mask[0], Mask.size());
-- 
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