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[LegalizeTypes] Use SelectionDAG::SplitVector to simplify some code. NFC #92816

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merged 1 commit into from
May 20, 2024
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[LegalizeTypes] Use SelectionDAG::SplitVector to simplify some code. NFC #92816

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17 changes: 2 additions & 15 deletions llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -2911,18 +2911,10 @@ void DAGTypeLegalizer::SplitVecRes_VECTOR_REVERSE(SDNode *N, SDValue &Lo,

void DAGTypeLegalizer::SplitVecRes_VECTOR_SPLICE(SDNode *N, SDValue &Lo,
SDValue &Hi) {
EVT VT = N->getValueType(0);
SDLoc DL(N);

EVT LoVT, HiVT;
std::tie(LoVT, HiVT) = DAG.GetSplitDestVTs(VT);

SDValue Expanded = TLI.expandVectorSplice(N, DAG);
Lo = DAG.getNode(ISD::EXTRACT_SUBVECTOR, DL, LoVT, Expanded,
DAG.getVectorIdxConstant(0, DL));
Hi =
DAG.getNode(ISD::EXTRACT_SUBVECTOR, DL, HiVT, Expanded,
DAG.getVectorIdxConstant(LoVT.getVectorMinNumElements(), DL));
std::tie(Lo, Hi) = DAG.SplitVector(Expanded, DL);
}

void DAGTypeLegalizer::SplitVecRes_VP_REVERSE(SDNode *N, SDValue &Lo,
Expand Down Expand Up @@ -2967,12 +2959,7 @@ void DAGTypeLegalizer::SplitVecRes_VP_REVERSE(SDNode *N, SDValue &Lo,

SDValue Load = DAG.getLoadVP(VT, DL, Store, StackPtr, Mask, EVL, LoadMMO);

auto [LoVT, HiVT] = DAG.GetSplitDestVTs(VT);
Lo = DAG.getNode(ISD::EXTRACT_SUBVECTOR, DL, LoVT, Load,
DAG.getVectorIdxConstant(0, DL));
Hi =
DAG.getNode(ISD::EXTRACT_SUBVECTOR, DL, HiVT, Load,
DAG.getVectorIdxConstant(LoVT.getVectorMinNumElements(), DL));
std::tie(Lo, Hi) = DAG.SplitVector(Load, DL);
}

void DAGTypeLegalizer::SplitVecRes_VECTOR_DEINTERLEAVE(SDNode *N) {
Expand Down
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