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Revert r140463; The patch assumes that <4 x i1> is saved to memory as 4 x i8,

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while the decision is to bit-pack small values.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140601 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nadav Rotem
2011-09-27 10:48:29 +00:00
parent 24771028a0
commit a1c415cfc2
1 changed files with 1 additions and 10 deletions
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11
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@@ -1180,10 +1180,6 @@ SDValue SelectionDAGLegalize::LegalizeOp(SDValue Op) {
// bytes. For example, promote EXTLOAD:i20 -> EXTLOAD:i24. // bytes. For example, promote EXTLOAD:i20 -> EXTLOAD:i24.
unsigned NewWidth = SrcVT.getStoreSizeInBits(); unsigned NewWidth = SrcVT.getStoreSizeInBits();
EVT NVT = EVT::getIntegerVT(*DAG.getContext(), NewWidth); EVT NVT = EVT::getIntegerVT(*DAG.getContext(), NewWidth);
if (SrcVT.isVector()) {
NVT = EVT::getVectorVT(*DAG.getContext(), NVT,
SrcVT.getVectorNumElements());
}
SDValue Ch; SDValue Ch;
// The extra bits are guaranteed to be zero, since we stored them that // The extra bits are guaranteed to be zero, since we stored them that
@@ -1525,12 +1521,7 @@ SDValue SelectionDAGLegalize::LegalizeOp(SDValue Op) {
// TRUNCSTORE:i1 X -> TRUNCSTORE:i8 (and X, 1) // TRUNCSTORE:i1 X -> TRUNCSTORE:i8 (and X, 1)
EVT NVT = EVT::getIntegerVT(*DAG.getContext(), EVT NVT = EVT::getIntegerVT(*DAG.getContext(),
StVT.getStoreSizeInBits()); StVT.getStoreSizeInBits());
if (StVT.isVector()) { Tmp3 = DAG.getZeroExtendInReg(Tmp3, dl, StVT);
NVT = EVT::getVectorVT(*DAG.getContext(), NVT,
StVT.getVectorNumElements());
}
Tmp3 = DAG.getZeroExtendInReg(Tmp3, dl, StVT.getScalarType());
Result = DAG.getTruncStore(Tmp1, dl, Tmp3, Tmp2, ST->getPointerInfo(), Result = DAG.getTruncStore(Tmp1, dl, Tmp3, Tmp2, ST->getPointerInfo(),
NVT, isVolatile, isNonTemporal, Alignment); NVT, isVolatile, isNonTemporal, Alignment);
} else if (StWidth & (StWidth - 1)) { } else if (StWidth & (StWidth - 1)) {