154     Constant *C1, *C2;  in visitMul()  local
156     if (match(&I, m_Mul(m_Shl(m_Value(NewOp), m_Constant(C2)),  in visitMul()
160       Constant *Shl = ConstantExpr::getShl(C1, C2);  in visitMul()
559 static bool multiplyOverflows(const APInt &C1, const APInt &C2, APInt &Product,  in multiplyOverflows()  argument
562   Product = IsSigned ? C1.smul_ov(C2, Overflow) : C1.umul_ov(C2, Overflow);  in multiplyOverflows()
567 static bool isMultiple(const APInt &C1, const APInt &C2, APInt &Quotient,  in isMultiple()  argument
569   assert(C1.getBitWidth() == C2.getBitWidth() && "Constant widths not equal");  in isMultiple()
572   if (C2.isNullValue())  in isMultiple()
576   if (IsSigned && C1.isMinSignedValue() && C2.isAllOnesValue())  in isMultiple()
581     APInt::sdivrem(C1, C2, Quotient, Remainder);  in isMultiple()
583     APInt::udivrem(C1, C2, Quotient, Remainder);  in isMultiple()
608   const APInt *C2;  in commonIDivTransforms()  local
609   if (match(Op1, m_APInt(C2))) {  in commonIDivTransforms()
617       if (!multiplyOverflows(*C1, *C2, Product, IsSigned))  in commonIDivTransforms()
627       if (isMultiple(*C2, *C1, Quotient, IsSigned)) {  in commonIDivTransforms()
635       if (isMultiple(*C1, *C2, Quotient, IsSigned)) {  in commonIDivTransforms()
653       if (isMultiple(*C2, C1Shifted, Quotient, IsSigned)) {  in commonIDivTransforms()
661       if (isMultiple(C1Shifted, *C2, Quotient, IsSigned)) {  in commonIDivTransforms()
671     if (!C2->isNullValue()) // avoid X udiv 0  in commonIDivTransforms()
880   const APInt *C1, *C2;  in visitUDiv()  local
881   if (match(Op0, m_LShr(m_Value(X), m_APInt(C1))) && match(Op1, m_APInt(C2))) {  in visitUDiv()
884     APInt C2ShlC1 = C2->ushl_ov(*C1, Overflow);  in visitUDiv()
1089   Constant *C2, *NewC = nullptr;  in foldFDivConstantDividend()  local
1090   if (match(I.getOperand(1), m_FMul(m_Value(X), m_Constant(C2)))) {  in foldFDivConstantDividend()
1092     NewC = ConstantExpr::getFDiv(C, C2);  in foldFDivConstantDividend()
1093   } else if (match(I.getOperand(1), m_FDiv(m_Value(X), m_Constant(C2)))) {  in foldFDivConstantDividend()
1095     NewC = ConstantExpr::getFMul(C, C2);  in foldFDivConstantDividend()