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[SelectionDAG] Remove the code that handles SETCC with a scalar result type from vector widening. 

There's no such thing as a setcc with vector operands and scalar result. And if we're trying to widen the result we would have to already be looking at a vector result type.

So this patch renames the VSETCC function as the SETCC function and delete the original SETCC function.

llvm-svn: 319799
This commit is contained in:
Craig Topper 2017-12-05 17:37:19 +00:00
parent 558cc48b44
commit 8adcbe8c9f
2 changed files with 1 additions and 15 deletions
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1
llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.h
View File

@ -731,7 +731,6 @@ private:
SDValue WidenVecRes_SETCC(SDNode* N);
SDValue WidenVecRes_UNDEF(SDNode *N);
SDValue WidenVecRes_VECTOR_SHUFFLE(ShuffleVectorSDNode *N);
SDValue WidenVecRes_VSETCC(SDNode* N);
SDValue WidenVecRes_Ternary(SDNode *N);
SDValue WidenVecRes_Binary(SDNode *N);

15
llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
View File

@ -3225,19 +3225,6 @@ SDValue DAGTypeLegalizer::WidenVecRes_SELECT_CC(SDNode *N) {
N->getOperand(1), InOp1, InOp2, N->getOperand(4));
}
SDValue DAGTypeLegalizer::WidenVecRes_SETCC(SDNode *N) {
assert(N->getValueType(0).isVector() ==
N->getOperand(0).getValueType().isVector() &&
"Scalar/Vector type mismatch");
if (N->getValueType(0).isVector()) return WidenVecRes_VSETCC(N);
EVT WidenVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
SDValue InOp1 = GetWidenedVector(N->getOperand(0));
SDValue InOp2 = GetWidenedVector(N->getOperand(1));
return DAG.getNode(ISD::SETCC, SDLoc(N), WidenVT,
InOp1, InOp2, N->getOperand(2));
}
SDValue DAGTypeLegalizer::WidenVecRes_UNDEF(SDNode *N) {
EVT WidenVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0));
return DAG.getUNDEF(WidenVT);
@ -3268,7 +3255,7 @@ SDValue DAGTypeLegalizer::WidenVecRes_VECTOR_SHUFFLE(ShuffleVectorSDNode *N) {
return DAG.getVectorShuffle(WidenVT, dl, InOp1, InOp2, NewMask);
}
SDValue DAGTypeLegalizer::WidenVecRes_VSETCC(SDNode *N) {
SDValue DAGTypeLegalizer::WidenVecRes_SETCC(SDNode *N) {
assert(N->getValueType(0).isVector() &&
N->getOperand(0).getValueType().isVector() &&
"Operands must be vectors");