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Fix constant used for pshufb mask when lowering v16i8 shuffles. Bug introduced in r157043. Fixes PR12908.

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llvm-svn: 157236
This commit is contained in:
Craig Topper 2012-05-22 06:09:38 +00:00
parent 2a600ff5f4
commit 0fe3f1297b
1 changed files with 1 additions and 1 deletions
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2
lib/Target/X86/X86ISelLowering.cpp
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@ -5805,7 +5805,7 @@ SDValue LowerVECTOR_SHUFFLEv16i8(ShuffleVectorSDNode *SVOp,
for (unsigned i = 0; i != 16; ++i) {
int EltIdx = MaskVals[i];
EltIdx = (EltIdx < 16) ? 0x80 : EltIdx - 16;
pshufbMask.push_back(DAG.getConstant(EltIdx - 16, MVT::i8));
pshufbMask.push_back(DAG.getConstant(EltIdx, MVT::i8));
}
V2 = DAG.getNode(X86ISD::PSHUFB, dl, MVT::v16i8, V2,
DAG.getNode(ISD::BUILD_VECTOR, dl,