From 500d691d4a4493934eaecbcb15800cbe5b89e0a5 Mon Sep 17 00:00:00 2001 From: Nadav Rotem Date: Sun, 2 Sep 2012 08:20:07 +0000 Subject: Generate better select code by allowing the target to use scalar select, and not sign-extend. llvm-svn: 163086 --- llvm/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'llvm/lib/CodeGen/SelectionDAG') diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp index c334f1fba5f..18a71691d49 100644 --- a/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp +++ b/llvm/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 Ops(NumElem, Mask); -- cgit v1.2.3