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This isn't safe when there are uses of load's chain result.

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llvm-svn: 40617
This commit is contained in:
Evan Cheng 2007-07-31 06:21:44 +00:00
parent eb42bcd78a
commit e90ad40aa1
1 changed files with 4 additions and 11 deletions
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15
lib/Target/X86/X86ISelLowering.cpp
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@ -3010,17 +3010,10 @@ X86TargetLowering::LowerINSERT_VECTOR_ELT(SDOperand Op, SelectionDAG &DAG) {
// Use two pinsrw instructions to insert a 32 bit value.
Idx <<= 1;
if (MVT::isFloatingPoint(N1.getValueType())) {
if (ISD::isNON_EXTLoad(N1.Val)) {
// Just load directly from f32mem to GR32.
LoadSDNode *LD = cast<LoadSDNode>(N1);
N1 = DAG.getLoad(MVT::i32, LD->getChain(), LD->getBasePtr(),
LD->getSrcValue(), LD->getSrcValueOffset());
} else {
N1 = DAG.getNode(ISD::SCALAR_TO_VECTOR, MVT::v4f32, N1);
N1 = DAG.getNode(ISD::BIT_CONVERT, MVT::v4i32, N1);
N1 = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, MVT::i32, N1,
DAG.getConstant(0, getPointerTy()));
}
N1 = DAG.getNode(ISD::SCALAR_TO_VECTOR, MVT::v4f32, N1);
N1 = DAG.getNode(ISD::BIT_CONVERT, MVT::v4i32, N1);
N1 = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, MVT::i32, N1,
DAG.getConstant(0, getPointerTy()));
}
N0 = DAG.getNode(ISD::BIT_CONVERT, MVT::v8i16, N0);
N0 = DAG.getNode(X86ISD::PINSRW, MVT::v8i16, N0, N1,