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unbreak test/Bitcode/shuffle.ll.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149033 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2012-01-26 03:10:45 +00:00
parent 71a494d697
commit 29bb00b3c5
1 changed files with 3 additions and 0 deletions
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3
lib/VMCore/ConstantFold.cpp
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@ -787,6 +787,9 @@ Constant *llvm::ConstantFoldShuffleVectorInstruction(Constant *V1,
// Undefined shuffle mask -> undefined value.
if (isa<UndefValue>(Mask)) return UndefValue::get(V1->getType());
// Don't break the bitcode reader hack.
if (isa<ConstantExpr>(Mask)) return 0;
unsigned MaskNumElts = Mask->getType()->getVectorNumElements();
unsigned SrcNumElts = V1->getType()->getVectorNumElements();
Type *EltTy = V1->getType()->getVectorElementType();