Minor cleanup and docs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160311 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nadav Rotem 2012-07-16 18:56:39 +00:00
parent f6978ddbec
commit c76fa8937d

View File

@ -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;
}