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Invert the subvector insertion to be more likely to be taken as a COPY 

llvm-svn: 136324
This commit is contained in:
Bruno Cardoso Lopes 2011-07-28 01:26:53 +00:00
parent 76bc28bac6
commit 8c19a8b5d5
1 changed files with 3 additions and 3 deletions
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6
llvm/lib/Target/X86/X86ISelLowering.cpp
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@ -4809,9 +4809,9 @@ X86TargetLowering::LowerBUILD_VECTOR(SDValue Op, SelectionDAG &DAG) const {
NumElems/2);
// Recreate the wider vector with the lower and upper part.
SDValue Vec = Insert128BitVector(DAG.getNode(ISD::UNDEF, dl, VT), Upper,
DAG.getConstant(NumElems/2, MVT::i32), DAG, dl);
return Insert128BitVector(Vec, Lower, DAG.getConstant(0, MVT::i32),
SDValue Vec = Insert128BitVector(DAG.getNode(ISD::UNDEF, dl, VT), Lower,
DAG.getConstant(0, MVT::i32), DAG, dl);
return Insert128BitVector(Vec, Upper, DAG.getConstant(NumElems/2, MVT::i32),
DAG, dl);
}