70     Value *foldIVUser(Instruction *UseInst, Instruction *IVOperand);
72     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);
93 Value *SimplifyIndvar::foldIVUser(Instruction *UseInst, Instruction *IVOperand) {  in foldIVUser()  argument
104     if (IVOperand != UseInst->getOperand(OperIdx) ||  in foldIVUser()
110     if (!isa<BinaryOperator>(IVOperand)  in foldIVUser()
111         || !isa<ConstantInt>(IVOperand->getOperand(1)))  in foldIVUser()
114     IVSrc = IVOperand->getOperand(0);  in foldIVUser()
138   DEBUG(dbgs() << "INDVARS: Eliminated IV operand: " << *IVOperand  in foldIVUser()
146   if (IVOperand->use_empty())  in foldIVUser()
147     DeadInsts.emplace_back(IVOperand);  in foldIVUser()
153 void SimplifyIndvar::eliminateIVComparison(ICmpInst *ICmp, Value *IVOperand) {  in eliminateIVComparison()  argument
156   if (IVOperand != ICmp->getOperand(0)) {  in eliminateIVComparison()
158     assert(IVOperand == ICmp->getOperand(1) && "Can't find IVOperand");  in eliminateIVComparison()
185   } else if (isa<PHINode>(IVOperand) &&  in eliminateIVComparison()
204     for (Value *Incoming : cast<PHINode>(IVOperand)->incoming_values()) {  in eliminateIVComparison()
236                                       Value *IVOperand,  in eliminateIVRemainder()  argument
240   if (IVOperand != Rem->getOperand(0))  in eliminateIVRemainder()
287                                      Instruction *IVOperand) {  in eliminateIVUser()  argument
289     eliminateIVComparison(ICmp, IVOperand);  in eliminateIVUser()
295       eliminateIVRemainder(Rem, IVOperand, IsSigned);  in eliminateIVUser()
300   if (eliminateIdentitySCEV(UseInst, IVOperand))  in eliminateIVUser()
308                                            Instruction *IVOperand) {  in eliminateIdentitySCEV()  argument
310       (UseInst->getType() != IVOperand->getType()) ||  in eliminateIdentitySCEV()
311       (SE->getSCEV(UseInst) != SE->getSCEV(IVOperand)))  in eliminateIdentitySCEV()
333     if (!DT || !DT->dominates(IVOperand, UseInst))  in eliminateIdentitySCEV()
336   if (!LI->replacementPreservesLCSSAForm(UseInst, IVOperand))  in eliminateIdentitySCEV()
341   UseInst->replaceAllUsesWith(IVOperand);  in eliminateIdentitySCEV()
351                                                     Value *IVOperand) {  in strengthenOverflowingOperation()  argument
554     Instruction *IVOperand = UseOper.second;  in simplifyUsers()  local
555     for (unsigned N = 0; IVOperand; ++N) {  in simplifyUsers()
558       Value *NewOper = foldIVUser(UseOper.first, IVOperand);  in simplifyUsers()
561       IVOperand = dyn_cast<Instruction>(NewOper);  in simplifyUsers()
563     if (!IVOperand)  in simplifyUsers()
566     if (eliminateIVUser(UseOper.first, IVOperand)) {  in simplifyUsers()
567       pushIVUsers(IVOperand, Simplified, SimpleIVUsers);  in simplifyUsers()
573           strengthenOverflowingOperation(BO, IVOperand)) {  in simplifyUsers()
576         pushIVUsers(IVOperand, Simplified, SimpleIVUsers);  in simplifyUsers()