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[SelectionDAG] Use APInt::isNullValue/isOneValue. NFC 

llvm-svn: 305605
This commit is contained in:
Craig Topper 2017-06-16 23:19:12 +00:00
parent b681907c50
commit ea5b8bc9ef
2 changed files with 5 additions and 5 deletions
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4
llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
View File

@ -2549,14 +2549,14 @@ SDValue DAGCombiner::visitMUL(SDNode *N) {
!DAG.isConstantIntBuildVectorOrConstantInt(N1))
return DAG.getNode(ISD::MUL, SDLoc(N), VT, N1, N0);
// fold (mul x, 0) -> 0
if (N1IsConst && ConstValue1 == 0)
if (N1IsConst && ConstValue1.isNullValue())
return N1;
// We require a splat of the entire scalar bit width for non-contiguous
// bit patterns.
bool IsFullSplat =
ConstValue1.getBitWidth() == VT.getScalarSizeInBits();
// fold (mul x, 1) -> x
if (N1IsConst && ConstValue1 == 1 && IsFullSplat)
if (N1IsConst && ConstValue1.isOneValue() && IsFullSplat)
return N0;
if (SDValue NewSel = foldBinOpIntoSelect(N))

6
llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
View File

@ -919,7 +919,7 @@ bool TargetLowering::SimplifyDemandedBits(SDValue Op,
// always convert this into a logical shr, even if the shift amount is
// variable. The low bit of the shift cannot be an input sign bit unless
// the shift amount is >= the size of the datatype, which is undefined.
if (NewMask == 1)
if (NewMask.isOneValue())
return TLO.CombineTo(Op,
TLO.DAG.getNode(ISD::SRL, dl, Op.getValueType(),
Op.getOperand(0), Op.getOperand(1)));
@ -1349,7 +1349,7 @@ bool TargetLowering::isConstTrueVal(const SDNode *N) const {
case UndefinedBooleanContent:
return CVal[0];
case ZeroOrOneBooleanContent:
return CVal == 1;
return CVal.isOneValue();
case ZeroOrNegativeOneBooleanContent:
return CVal.isAllOnesValue();
}
@ -1506,7 +1506,7 @@ SDValue TargetLowering::SimplifySetCC(EVT VT, SDValue N0, SDValue N1,
// If the LHS is '(srl (ctlz x), 5)', the RHS is 0/1, and this is an
// equality comparison, then we're just comparing whether X itself is
// zero.
if (N0.getOpcode() == ISD::SRL && (C1 == 0 || C1 == 1) &&
if (N0.getOpcode() == ISD::SRL && (C1.isNullValue() || C1.isOneValue()) &&
N0.getOperand(0).getOpcode() == ISD::CTLZ &&
N0.getOperand(1).getOpcode() == ISD::Constant) {
const APInt &ShAmt