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| author | Nadav Rotem <nrotem@apple.com> | 2012-09-02 08:20:07 +0000 |
|---|---|---|
| committer | Nadav Rotem <nrotem@apple.com> | 2012-09-02 08:20:07 +0000 |
| commit | f55ef64544f8ba81e50154a98f144f7b7783ed40 (patch) | |
| tree | c59e7c5ee67381dd5ffec3f8cdd350c720b9e107 /lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp | |
| parent | d906017c1a8b5c7c49f1bc21c13e8b85306298b8 (diff) | |
| download | llvm-f55ef64544f8ba81e50154a98f144f7b7783ed40.tar.gz llvm-f55ef64544f8ba81e50154a98f144f7b7783ed40.tar.bz2 llvm-f55ef64544f8ba81e50154a98f144f7b7783ed40.tar.xz | |
Generate better select code by allowing the target to use scalar select, and not sign-extend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163086 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp b/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp index c334f1fba5..18a71691d4 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp @@ -475,10 +475,9 @@ SDValue VectorLegalizer::ExpandSELECT(SDValue Op) { // What is the size of each element in the vector mask. EVT BitTy = MaskTy.getScalarType(); - // Turn the mask into an all-one or all-zero word. - Mask = DAG.getAnyExtOrTrunc(Mask, DL, BitTy); - Mask = DAG.getNode(ISD::SIGN_EXTEND_INREG, DL, BitTy, Mask, - DAG.getValueType(MVT::i1)); + Mask = DAG.getNode(ISD::SELECT, DL, BitTy, Mask, + DAG.getConstant(APInt::getAllOnesValue(BitTy.getSizeInBits()), BitTy), + DAG.getConstant(3, BitTy)); // Broadcast the mask so that the entire vector is all-one or all zero. SmallVector<SDValue, 8> Ops(NumElem, Mask); |