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Minor cleanup and docs.

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llvm-svn: 160311
This commit is contained in:
Nadav Rotem 2012-07-16 18:56:39 +00:00
parent a062aae2e3
commit 0837b79904
1 changed files with 3 additions and 1 deletions
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4
lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
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@ -155,7 +155,9 @@ SDValue DAGTypeLegalizer::ScalarizeVecRes_BITCAST(SDNode *N) {
SDValue DAGTypeLegalizer::ScalarizeVecRes_BUILD_VECTOR(SDNode *N) {
EVT EltVT = N->getValueType(0).getVectorElementType();
SDValue InOp = N->getOperand(0);
if (InOp.getValueType() != EltVT)
// The BUILD_VECTOR operands may be of wider element types and
// we may need to truncate them back to the requested return type.
if (EltVT.isInteger())
return DAG.getNode(ISD::TRUNCATE, N->getDebugLoc(), EltVT, InOp);
return InOp;
}