78     Value *foldIVUser(Instruction *UseInst, Instruction *IVOperand);
80     bool eliminateIdentitySCEV(Instruction *UseInst, Instruction *IVOperand);
87     bool eliminateIVUser(Instruction *UseInst, Instruction *IVOperand);
88     bool makeIVComparisonInvariant(ICmpInst *ICmp, Instruction *IVOperand);
89     void eliminateIVComparison(ICmpInst *ICmp, Instruction *IVOperand);
90     void simplifyIVRemainder(BinaryOperator *Rem, Instruction *IVOperand,
97                                         Instruction *IVOperand);
98     bool strengthenRightShift(BinaryOperator *BO, Instruction *IVOperand);
128 Value *SimplifyIndvar::foldIVUser(Instruction *UseInst, Instruction *IVOperand) {  in foldIVUser()  argument
140     if (IVOperand != UseInst->getOperand(OperIdx) ||  in foldIVUser()
146     if (!isa<BinaryOperator>(IVOperand)  in foldIVUser()
147         || !isa<ConstantInt>(IVOperand->getOperand(1)))  in foldIVUser()
150     IVSrc = IVOperand->getOperand(0);  in foldIVUser()
180   LLVM_DEBUG(dbgs() << "INDVARS: Eliminated IV operand: " << *IVOperand  in foldIVUser()
191   if (IVOperand->use_empty())  in foldIVUser()
192     DeadInsts.emplace_back(IVOperand);  in foldIVUser()
197                                                Instruction *IVOperand) {  in makeIVComparisonInvariant()  argument
200   if (IVOperand != ICmp->getOperand(0)) {  in makeIVComparisonInvariant()
202     assert(IVOperand == ICmp->getOperand(1) && "Can't find IVOperand");  in makeIVComparisonInvariant()
213   auto *PN = dyn_cast<PHINode>(IVOperand);  in makeIVComparisonInvariant()
267                                            Instruction *IVOperand) {  in eliminateIVComparison()  argument
271   if (IVOperand != ICmp->getOperand(0)) {  in eliminateIVComparison()
273     assert(IVOperand == ICmp->getOperand(1) && "Can't find IVOperand");  in eliminateIVComparison()
294   } else if (makeIVComparisonInvariant(ICmp, IVOperand)) {  in eliminateIVComparison()
379                                          Instruction *IVOperand,  in simplifyIVRemainder()  argument
386   bool UsedAsNumerator = IVOperand == NValue;  in simplifyIVRemainder()
605                                      Instruction *IVOperand) {  in eliminateIVUser()  argument
607     eliminateIVComparison(ICmp, IVOperand);  in eliminateIVUser()
613       simplifyIVRemainder(Bin, IVOperand, IsSRem);  in eliminateIVUser()
633   if (eliminateIdentitySCEV(UseInst, IVOperand))  in eliminateIVUser()
686   Value *IVOperand = UseInst->getOperand(0);  in replaceFloatIVWithIntegerIV()  local
688   const SCEV *IV = SE->getSCEV(IVOperand);  in replaceFloatIVWithIntegerIV()
699       if (!CI || IVOperand->getType() != CI->getType())  in replaceFloatIVWithIntegerIV()
706       CI->replaceAllUsesWith(IVOperand);  in replaceFloatIVWithIntegerIV()
709                         << " with: " << *IVOperand << '\n');  in replaceFloatIVWithIntegerIV()
721                                            Instruction *IVOperand) {  in eliminateIdentitySCEV()  argument
723       (UseInst->getType() != IVOperand->getType()) ||  in eliminateIdentitySCEV()
724       (SE->getSCEV(UseInst) != SE->getSCEV(IVOperand)))  in eliminateIdentitySCEV()
746     if (!DT || !DT->dominates(IVOperand, UseInst))  in eliminateIdentitySCEV()
749   if (!LI->replacementPreservesLCSSAForm(UseInst, IVOperand))  in eliminateIdentitySCEV()
754   UseInst->replaceAllUsesWith(IVOperand);  in eliminateIdentitySCEV()
764                                                     Instruction *IVOperand) {  in strengthenOverflowingOperation()  argument
788                                           Instruction *IVOperand) {  in strengthenRightShift()  argument
793     ConstantRange IVRange = SE->getUnsignedRange(SE->getSCEV(IVOperand));  in strengthenRightShift()
797                 m_AShr(m_Shl(m_Value(), m_Specific(IVOperand)), m_APInt(C))) ||  in strengthenRightShift()
799                 m_LShr(m_Shl(m_Value(), m_Specific(IVOperand)), m_APInt(C)))) {  in strengthenRightShift()
912     Instruction *IVOperand = UseOper.second;  in simplifyUsers()  local
913     for (unsigned N = 0; IVOperand; ++N) {  in simplifyUsers()
917       Value *NewOper = foldIVUser(UseInst, IVOperand);  in simplifyUsers()
920       IVOperand = dyn_cast<Instruction>(NewOper);  in simplifyUsers()
922     if (!IVOperand)  in simplifyUsers()
925     if (eliminateIVUser(UseInst, IVOperand)) {  in simplifyUsers()
926       pushIVUsers(IVOperand, L, Simplified, SimpleIVUsers);  in simplifyUsers()
932            strengthenOverflowingOperation(BO, IVOperand)) ||  in simplifyUsers()
933           (isa<ShlOperator>(BO) && strengthenRightShift(BO, IVOperand))) {  in simplifyUsers()
936         pushIVUsers(IVOperand, L, Simplified, SimpleIVUsers);  in simplifyUsers()
943       pushIVUsers(IVOperand, L, Simplified, SimpleIVUsers);  in simplifyUsers()