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Pull out repeated value types. NFCI. 

llvm-svn: 344355
This commit is contained in:
Simon Pilgrim 2018-10-12 15:49:19 +00:00
parent b926fd7b36
commit c046b6856e
1 changed files with 5 additions and 6 deletions
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11
llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@ -2708,10 +2708,11 @@ SDValue SelectionDAGLegalize::ExpandBSWAP(SDValue Op, const SDLoc &dl) {
/// Expand the specified bitcount instruction into operations.
SDValue SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDValue Op,
const SDLoc &dl) {
EVT VT = Op.getValueType();
switch (Opc) {
default: llvm_unreachable("Cannot expand this yet!");
case ISD::CTPOP: {
EVT VT = Op.getValueType();
EVT ShVT = TLI.getShiftAmountTy(VT, DAG.getDataLayout());
unsigned Len = VT.getSizeInBits();
@ -2758,9 +2759,8 @@ SDValue SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDValue Op,
}
case ISD::CTLZ_ZERO_UNDEF:
// This trivially expands to CTLZ.
return DAG.getNode(ISD::CTLZ, dl, Op.getValueType(), Op);
return DAG.getNode(ISD::CTLZ, dl, VT, Op);
case ISD::CTLZ: {
EVT VT = Op.getValueType();
unsigned Len = VT.getScalarSizeInBits();
if (TLI.isOperationLegalOrCustom(ISD::CTLZ_ZERO_UNDEF, VT)) {
@ -2792,9 +2792,8 @@ SDValue SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDValue Op,
}
case ISD::CTTZ_ZERO_UNDEF:
// This trivially expands to CTTZ.
return DAG.getNode(ISD::CTTZ, dl, Op.getValueType(), Op);
return DAG.getNode(ISD::CTTZ, dl, VT, Op);
case ISD::CTTZ: {
EVT VT = Op.getValueType();
unsigned Len = VT.getSizeInBits();
if (TLI.isOperationLegalOrCustom(ISD::CTTZ_ZERO_UNDEF, VT)) {
@ -2818,7 +2817,7 @@ SDValue SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDValue Op,
if (!TLI.isOperationLegalOrCustom(ISD::CTPOP, VT) &&
TLI.isOperationLegalOrCustom(ISD::CTLZ, VT))
return DAG.getNode(ISD::SUB, dl, VT,
DAG.getConstant(VT.getSizeInBits(), dl, VT),
DAG.getConstant(Len, dl, VT),
DAG.getNode(ISD::CTLZ, dl, VT, Tmp3));
return DAG.getNode(ISD::CTPOP, dl, VT, Tmp3);
}