SDLoc DL(N);
// fold (sdiv c1, c2) -> c1/c2
- ConstantSDNode *N0C = isConstOrConstSplat(N0);
ConstantSDNode *N1C = isConstOrConstSplat(N1);
- if (N0C && N1C && !N0C->isOpaque() && !N1C->isOpaque())
- return DAG.FoldConstantArithmetic(ISD::SDIV, DL, VT, N0C, N1C);
+ if (SDValue C = DAG.FoldConstantArithmetic(ISD::SDIV, DL, VT, {N0, N1}))
+ return C;
+
// fold (sdiv X, -1) -> 0-X
if (N1C && N1C->isAllOnesValue())
return DAG.getNode(ISD::SUB, DL, VT, DAG.getConstant(0, DL, VT), N0);
+
// fold (sdiv X, MIN_SIGNED) -> select(X == MIN_SIGNED, 1, 0)
if (N1C && N1C->getAPIntValue().isMinSignedValue())
return DAG.getSelect(DL, VT, DAG.getSetCC(DL, CCVT, N0, N1, ISD::SETEQ),
SDLoc DL(N);
// fold (udiv c1, c2) -> c1/c2
- ConstantSDNode *N0C = isConstOrConstSplat(N0);
ConstantSDNode *N1C = isConstOrConstSplat(N1);
- if (N0C && N1C)
- if (SDValue Folded = DAG.FoldConstantArithmetic(ISD::UDIV, DL, VT,
- N0C, N1C))
- return Folded;
+ if (SDValue C = DAG.FoldConstantArithmetic(ISD::UDIV, DL, VT, {N0, N1}))
+ return C;
+
// fold (udiv X, -1) -> select(X == -1, 1, 0)
if (N1C && N1C->getAPIntValue().isAllOnesValue())
return DAG.getSelect(DL, VT, DAG.getSetCC(DL, CCVT, N0, N1, ISD::SETEQ),
SDLoc DL(N);
// fold (rem c1, c2) -> c1%c2
- ConstantSDNode *N0C = isConstOrConstSplat(N0);
ConstantSDNode *N1C = isConstOrConstSplat(N1);
- if (N0C && N1C)
- if (SDValue Folded = DAG.FoldConstantArithmetic(Opcode, DL, VT, N0C, N1C))
- return Folded;
+ if (SDValue C = DAG.FoldConstantArithmetic(Opcode, DL, VT, {N0, N1}))
+ return C;
+
// fold (urem X, -1) -> select(X == -1, 0, x)
if (!isSigned && N1C && N1C->getAPIntValue().isAllOnesValue())
return DAG.getSelect(DL, VT, DAG.getSetCC(DL, CCVT, N0, N1, ISD::SETEQ),