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[SDAGBuilder] Make the AArch64 builder happier.
I intended this loop to only unwrap SplitVector actions, but it was more broad than that, such as unwrapping WidenVector actions, which makes operations seem legal when they're not. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237457 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -2278,11 +2278,11 @@ void SelectionDAGBuilder::visitSelect(const User &I) {
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EVT VT = ValueVTs[0];
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LLVMContext &Ctx = *DAG.getContext();
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while (DAG.getTargetLoweringInfo().getTypeToTransformTo(Ctx, VT) != VT)
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VT = DAG.getTargetLoweringInfo().getTypeToTransformTo(Ctx, VT);
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auto &TLI = DAG.getTargetLoweringInfo();
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while (TLI.getTypeAction(Ctx, VT) == TargetLoweringBase::TypeSplitVector)
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VT = TLI.getTypeToTransformTo(Ctx, VT);
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if (Opc != ISD::DELETED_NODE &&
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DAG.getTargetLoweringInfo().isOperationLegalOrCustom(Opc, VT)) {
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if (Opc != ISD::DELETED_NODE && TLI.isOperationLegalOrCustom(Opc, VT)) {
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OpCode = Opc;
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LHSVal = getValue(LHS);
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RHSVal = getValue(RHS);
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