diff options
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index ef955939c6c..86b78fe5193 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -28791,12 +28791,13 @@ static SDValue combineExtractVectorElt(SDNode *N, SelectionDAG &DAG, if (SDValue NewOp = XFormVExtractWithShuffleIntoLoad(N, DAG, DCI)) return NewOp; + EVT VT = N->getValueType(0); SDValue InputVector = N->getOperand(0); SDLoc dl(InputVector); + // Detect mmx to i32 conversion through a v2i32 elt extract. if (InputVector.getOpcode() == ISD::BITCAST && InputVector.hasOneUse() && - N->getValueType(0) == MVT::i32 && - InputVector.getValueType() == MVT::v2i32 && + VT == MVT::i32 && InputVector.getValueType() == MVT::v2i32 && isa<ConstantSDNode>(N->getOperand(1)) && N->getConstantOperandVal(1) == 0) { SDValue MMXSrc = InputVector.getOperand(0); @@ -28806,8 +28807,6 @@ static SDValue combineExtractVectorElt(SDNode *N, SelectionDAG &DAG, return DAG.getNode(X86ISD::MMX_MOVD2W, dl, MVT::i32, MMXSrc); } - EVT VT = N->getValueType(0); - if (VT == MVT::i1 && isa<ConstantSDNode>(N->getOperand(1)) && InputVector.getOpcode() == ISD::BITCAST && isa<ConstantSDNode>(InputVector.getOperand(0))) { |
