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[Vector-Select] Address one of the problems in 10902. 

When generating the trunc-store of i1's, we need to use the vector type and not
the scalar type.

This patch fixes the assertion in CodeGen/Generic/bool-vector.ll when
running with -promote-elements.

llvm-svn: 140463
This commit is contained in:
Nadav Rotem 2011-09-24 18:32:19 +00:00
parent c9d78d7444
commit 77426a754b
1 changed files with 10 additions and 1 deletions
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11
llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@ -1180,6 +1180,10 @@ SDValue SelectionDAGLegalize::LegalizeOp(SDValue Op) {
// bytes. For example, promote EXTLOAD:i20 -> EXTLOAD:i24.
unsigned NewWidth = SrcVT.getStoreSizeInBits();
EVT NVT = EVT::getIntegerVT(*DAG.getContext(), NewWidth);
if (SrcVT.isVector()) {
NVT = EVT::getVectorVT(*DAG.getContext(), NVT,
SrcVT.getVectorNumElements());
}
SDValue Ch;
// The extra bits are guaranteed to be zero, since we stored them that
@ -1521,7 +1525,12 @@ SDValue SelectionDAGLegalize::LegalizeOp(SDValue Op) {
// TRUNCSTORE:i1 X -> TRUNCSTORE:i8 (and X, 1)
EVT NVT = EVT::getIntegerVT(*DAG.getContext(),
StVT.getStoreSizeInBits());
Tmp3 = DAG.getZeroExtendInReg(Tmp3, dl, StVT);
if (StVT.isVector()) {
NVT = EVT::getVectorVT(*DAG.getContext(), NVT,
StVT.getVectorNumElements());
}
Tmp3 = DAG.getZeroExtendInReg(Tmp3, dl, StVT.getScalarType());
Result = DAG.getTruncStore(Tmp1, dl, Tmp3, Tmp2, ST->getPointerInfo(),
NVT, isVolatile, isNonTemporal, Alignment);
} else if (StWidth & (StWidth - 1)) {