674 bool SCEVExpander::isNormalAddRecExprPHI(PHINode *PN, Instruction *IncV,  in isNormalAddRecExprPHI()  argument
676   if (IncV->getNumOperands() == 0 || isa<PHINode>(IncV) ||  in isNormalAddRecExprPHI()
677       (isa<CastInst>(IncV) && !isa<BitCastInst>(IncV)))  in isNormalAddRecExprPHI()
683     for (Use &Op : llvm::drop_begin(IncV->operands()))  in isNormalAddRecExprPHI()
689   IncV = dyn_cast<Instruction>(IncV->getOperand(0));  in isNormalAddRecExprPHI()
690   if (!IncV)  in isNormalAddRecExprPHI()
693   if (IncV->mayHaveSideEffects())  in isNormalAddRecExprPHI()
696   if (IncV == PN)  in isNormalAddRecExprPHI()
699   return isNormalAddRecExprPHI(PN, IncV, L);  in isNormalAddRecExprPHI()
711 Instruction *SCEVExpander::getIVIncOperand(Instruction *IncV,  in getIVIncOperand()  argument
714   if (IncV == InsertPos)  in getIVIncOperand()
717   switch (IncV->getOpcode()) {  in getIVIncOperand()
723     Instruction *OInst = dyn_cast<Instruction>(IncV->getOperand(1));  in getIVIncOperand()
725       return dyn_cast<Instruction>(IncV->getOperand(0));  in getIVIncOperand()
729     return dyn_cast<Instruction>(IncV->getOperand(0));  in getIVIncOperand()
731     for (Use &U : llvm::drop_begin(IncV->operands())) {  in getIVIncOperand()
743       if (!cast<GEPOperator>(IncV)->getSourceElementType()->isIntegerTy(8))  in getIVIncOperand()
747     return dyn_cast<Instruction>(IncV->getOperand(0));  in getIVIncOperand()
771 bool SCEVExpander::hoistIVInc(Instruction *IncV, Instruction *InsertPos,  in hoistIVInc()  argument
788   if (SE.DT.dominates(IncV, InsertPos)) {  in hoistIVInc()
790       FixupPoisonFlags(IncV);  in hoistIVInc()
797       !SE.DT.dominates(InsertPos->getParent(), IncV->getParent()))  in hoistIVInc()
800   if (!SE.LI.movementPreservesLCSSAForm(IncV, InsertPos))  in hoistIVInc()
806     Instruction *Oper = getIVIncOperand(IncV, InsertPos, /*allowScale*/true);  in hoistIVInc()
810     IVIncs.push_back(IncV);  in hoistIVInc()
811     IncV = Oper;  in hoistIVInc()
812     if (SE.DT.dominates(IncV, InsertPos))  in hoistIVInc()
838 bool SCEVExpander::isExpandedAddRecExprPHI(PHINode *PN, Instruction *IncV,  in isExpandedAddRecExprPHI()  argument
840   for(Instruction *IVOper = IncV;  in isExpandedAddRecExprPHI()
854   Value *IncV;  in expandIVInc()  local
858     IncV = Builder.CreatePtrAdd(PN, StepV, "scevgep");  in expandIVInc()
860     IncV = useSubtract ?  in expandIVInc()
864   return IncV;  in expandIVInc()
944     Instruction *IncV = nullptr;  in getAddRecExprPHILiterally()  local
994         IncV = TempIncV;  in getAddRecExprPHILiterally()
1008         IncV = TempIncV;  in getAddRecExprPHILiterally()
1018       rememberInstruction(IncV);  in getAddRecExprPHILiterally()
1021       ReusedValues.insert(IncV);  in getAddRecExprPHILiterally()
1090     Value *IncV = expandIVInc(PN, StepV, L, useSubtract);  in getAddRecExprPHILiterally()  local
1092     if (isa<OverflowingBinaryOperator>(IncV)) {  in getAddRecExprPHILiterally()
1094         cast<BinaryOperator>(IncV)->setHasNoUnsignedWrap();  in getAddRecExprPHILiterally()
1096         cast<BinaryOperator>(IncV)->setHasNoSignedWrap();  in getAddRecExprPHILiterally()
1098     PN->addIncoming(IncV, Pred);  in getAddRecExprPHILiterally()