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Fix vselect when getSetCCResultType returns a different type from the operands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181348 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -652,13 +652,14 @@ SDValue VectorLegalizer::ExpandSEXTINREG(SDValue Op) {
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SDValue VectorLegalizer::ExpandVSELECT(SDValue Op) {
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// Implement VSELECT in terms of XOR, AND, OR
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// on platforms which do not support blend natively.
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EVT VT = Op.getOperand(0).getValueType();
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DebugLoc DL = Op.getDebugLoc();
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SDValue Mask = Op.getOperand(0);
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SDValue Op1 = Op.getOperand(1);
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SDValue Op2 = Op.getOperand(2);
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EVT VT = Mask.getValueType();
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// If we can't even use the basic vector operations of
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// AND,OR,XOR, we will have to scalarize the op.
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// Notice that the operation may be 'promoted' which means that it is
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@ -673,8 +674,12 @@ SDValue VectorLegalizer::ExpandVSELECT(SDValue Op) {
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TargetLowering::ZeroOrNegativeOneBooleanContent)
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return DAG.UnrollVectorOp(Op.getNode());
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assert(VT.getSizeInBits() == Op1.getValueType().getSizeInBits()
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&& "Invalid mask size");
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// If the mask and the type are different sizes, unroll the vector op. This
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// can occur when getSetCCResultType returns something that is different in
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// size from the operand types. For example, v4i8 = select v4i32, v4i8, v4i8.
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if (VT.getSizeInBits() != Op1.getValueType().getSizeInBits())
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return DAG.UnrollVectorOp(Op.getNode());
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// Bitcast the operands to be the same type as the mask.
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// This is needed when we select between FP types because
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// the mask is a vector of integers.
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