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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.

llvm-svn: 237457
This commit is contained in:
James Molloy 2015-05-15 17:41:29 +00:00
parent 80a96d299a
commit 7307cd57c5
1 changed files with 4 additions and 4 deletions
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8
llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
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@ -2278,11 +2278,11 @@ void SelectionDAGBuilder::visitSelect(const User &I) {
EVT VT = ValueVTs[0];
LLVMContext &Ctx = *DAG.getContext();
while (DAG.getTargetLoweringInfo().getTypeToTransformTo(Ctx, VT) != VT)
VT = DAG.getTargetLoweringInfo().getTypeToTransformTo(Ctx, VT);
auto &TLI = DAG.getTargetLoweringInfo();
while (TLI.getTypeAction(Ctx, VT) == TargetLoweringBase::TypeSplitVector)
VT = TLI.getTypeToTransformTo(Ctx, VT);
if (Opc != ISD::DELETED_NODE &&
DAG.getTargetLoweringInfo().isOperationLegalOrCustom(Opc, VT)) {
if (Opc != ISD::DELETED_NODE && TLI.isOperationLegalOrCustom(Opc, VT)) {
OpCode = Opc;
LHSVal = getValue(LHS);
RHSVal = getValue(RHS);