diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86ISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 88f38298db0..69a60361314 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -14000,13 +14000,14 @@ static SDValue PerformOrCombine(SDNode *N, SelectionDAG &DAG, return SDValue(); // Validate that X, Y, and Mask are BIT_CONVERTS, and see through them. - if (Mask.getOpcode() != ISD::BITCAST || - X.getOpcode() != ISD::BITCAST || - Y.getOpcode() != ISD::BITCAST) - return SDValue(); - // Look through mask bitcast. - Mask = Mask.getOperand(0); + if (Mask.getOpcode() == ISD::BITCAST) + Mask = Mask.getOperand(0); + if (X.getOpcode() == ISD::BITCAST) + X = X.getOperand(0); + if (Y.getOpcode() == ISD::BITCAST) + Y = Y.getOperand(0); + EVT MaskVT = Mask.getValueType(); // Validate that the Mask operand is a vector sra node. @@ -14027,8 +14028,6 @@ static SDValue PerformOrCombine(SDNode *N, SelectionDAG &DAG, // Now we know we at least have a plendvb with the mask val. See if // we can form a psignb/w/d. // psign = x.type == y.type == mask.type && y = sub(0, x); - X = X.getOperand(0); - Y = Y.getOperand(0); if (Y.getOpcode() == ISD::SUB && Y.getOperand(1) == X && ISD::isBuildVectorAllZeros(Y.getOperand(0).getNode()) && X.getValueType() == MaskVT && Y.getValueType() == MaskVT) { |
