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authorChris Lattner <sabre@nondot.org>2012-01-26 03:10:45 +0000
committerChris Lattner <sabre@nondot.org>2012-01-26 03:10:45 +0000
commit29bb00b3c5dda58dabb57d016bd0c4099d37cd3b (patch)
tree0df6f5194bdda7a001e7abe4700ba57ab6b198b6 /lib/VMCore
parent71a494d6974f5105f008601a3e7c7474bf508139 (diff)
downloadexternal_llvm-29bb00b3c5dda58dabb57d016bd0c4099d37cd3b.zip
external_llvm-29bb00b3c5dda58dabb57d016bd0c4099d37cd3b.tar.gz
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unbreak test/Bitcode/shuffle.ll.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149033 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/VMCore')
-rw-r--r--lib/VMCore/ConstantFold.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/VMCore/ConstantFold.cpp b/lib/VMCore/ConstantFold.cpp
index 9c2919e..f1b97df 100644
--- a/lib/VMCore/ConstantFold.cpp
+++ b/lib/VMCore/ConstantFold.cpp
@@ -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();