69     Value *foldIVUser(Instruction *UseInst, Instruction *IVOperand);
71     bool eliminateIdentitySCEV(Instruction *UseInst, Instruction *IVOperand);
74     bool eliminateIVUser(Instruction *UseInst, Instruction *IVOperand);
75     void eliminateIVComparison(ICmpInst *ICmp, Value *IVOperand);
76     void eliminateIVRemainder(BinaryOperator *Rem, Value *IVOperand,
78     bool strengthenOverflowingOperation(BinaryOperator *OBO, Value *IVOperand);
90 Value *SimplifyIndvar::foldIVUser(Instruction *UseInst, Instruction *IVOperand) {  in foldIVUser()  argument
101     if (IVOperand != UseInst->getOperand(OperIdx) ||  in foldIVUser()
107     if (!isa<BinaryOperator>(IVOperand)  in foldIVUser()
108         || !isa<ConstantInt>(IVOperand->getOperand(1)))  in foldIVUser()
111     IVSrc = IVOperand->getOperand(0);  in foldIVUser()
135   DEBUG(dbgs() << "INDVARS: Eliminated IV operand: " << *IVOperand  in foldIVUser()
143   if (IVOperand->use_empty())  in foldIVUser()
144     DeadInsts.emplace_back(IVOperand);  in foldIVUser()
150 void SimplifyIndvar::eliminateIVComparison(ICmpInst *ICmp, Value *IVOperand) {  in eliminateIVComparison()  argument
153   if (IVOperand != ICmp->getOperand(0)) {  in eliminateIVComparison()
155     assert(IVOperand == ICmp->getOperand(1) && "Can't find IVOperand");  in eliminateIVComparison()
182   } else if (isa<PHINode>(IVOperand) &&  in eliminateIVComparison()
200     auto *PN = cast<PHINode>(IVOperand);  in eliminateIVComparison()
271                                       Value *IVOperand,  in eliminateIVRemainder()  argument
275   if (IVOperand != Rem->getOperand(0))  in eliminateIVRemainder()
424                                      Instruction *IVOperand) {  in eliminateIVUser()  argument
426     eliminateIVComparison(ICmp, IVOperand);  in eliminateIVUser()
432       eliminateIVRemainder(Rem, IVOperand, IsSigned);  in eliminateIVUser()
441   if (eliminateIdentitySCEV(UseInst, IVOperand))  in eliminateIVUser()
449                                            Instruction *IVOperand) {  in eliminateIdentitySCEV()  argument
451       (UseInst->getType() != IVOperand->getType()) ||  in eliminateIdentitySCEV()
452       (SE->getSCEV(UseInst) != SE->getSCEV(IVOperand)))  in eliminateIdentitySCEV()
474     if (!DT || !DT->dominates(IVOperand, UseInst))  in eliminateIdentitySCEV()
477   if (!LI->replacementPreservesLCSSAForm(UseInst, IVOperand))  in eliminateIdentitySCEV()
482   UseInst->replaceAllUsesWith(IVOperand);  in eliminateIdentitySCEV()
492                                                     Value *IVOperand) {  in strengthenOverflowingOperation()  argument
626     Instruction *IVOperand = UseOper.second;  in simplifyUsers()  local
627     for (unsigned N = 0; IVOperand; ++N) {  in simplifyUsers()
630       Value *NewOper = foldIVUser(UseOper.first, IVOperand);  in simplifyUsers()
633       IVOperand = dyn_cast<Instruction>(NewOper);  in simplifyUsers()
635     if (!IVOperand)  in simplifyUsers()
638     if (eliminateIVUser(UseOper.first, IVOperand)) {  in simplifyUsers()
639       pushIVUsers(IVOperand, Simplified, SimpleIVUsers);  in simplifyUsers()
645           strengthenOverflowingOperation(BO, IVOperand)) {  in simplifyUsers()
648         pushIVUsers(IVOperand, Simplified, SimpleIVUsers);  in simplifyUsers()