80     Value *foldIVUser(Instruction *UseInst, Instruction *IVOperand);
82     bool eliminateIdentitySCEV(Instruction *UseInst, Instruction *IVOperand);
89     bool eliminateIVUser(Instruction *UseInst, Instruction *IVOperand);
90     bool makeIVComparisonInvariant(ICmpInst *ICmp, Instruction *IVOperand);
91     void eliminateIVComparison(ICmpInst *ICmp, Instruction *IVOperand);
92     void simplifyIVRemainder(BinaryOperator *Rem, Instruction *IVOperand,
98     bool strengthenBinaryOp(BinaryOperator *BO, Instruction *IVOperand);
100                                         Instruction *IVOperand);
101     bool strengthenRightShift(BinaryOperator *BO, Instruction *IVOperand);
126 Value *SimplifyIndvar::foldIVUser(Instruction *UseInst, Instruction *IVOperand) {  in foldIVUser()  argument
138     if (IVOperand != UseInst->getOperand(OperIdx) ||  in foldIVUser()
144     if (!isa<BinaryOperator>(IVOperand)  in foldIVUser()
145         || !isa<ConstantInt>(IVOperand->getOperand(1)))  in foldIVUser()
148     IVSrc = IVOperand->getOperand(0);  in foldIVUser()
178   LLVM_DEBUG(dbgs() << "INDVARS: Eliminated IV operand: " << *IVOperand  in foldIVUser()
189   if (IVOperand->use_empty())  in foldIVUser()
190     DeadInsts.emplace_back(IVOperand);  in foldIVUser()
195                                                Instruction *IVOperand) {  in makeIVComparisonInvariant()  argument
201   if (IVOperand != ICmp->getOperand(0)) {  in makeIVComparisonInvariant()
203     assert(IVOperand == ICmp->getOperand(1) && "Can't find IVOperand");  in makeIVComparisonInvariant()
228       Rewriter.expandCodeFor(InvariantLHS, IVOperand->getType(), PHTerm);  in makeIVComparisonInvariant()
230       Rewriter.expandCodeFor(InvariantRHS, IVOperand->getType(), PHTerm);  in makeIVComparisonInvariant()
241                                            Instruction *IVOperand) {  in eliminateIVComparison()  argument
245   if (IVOperand != ICmp->getOperand(0)) {  in eliminateIVComparison()
247     assert(IVOperand == ICmp->getOperand(1) && "Can't find IVOperand");  in eliminateIVComparison()
269   } else if (makeIVComparisonInvariant(ICmp, IVOperand)) {  in eliminateIVComparison()
354                                          Instruction *IVOperand,  in simplifyIVRemainder()  argument
361   bool UsedAsNumerator = IVOperand == NValue;  in simplifyIVRemainder()
581                                      Instruction *IVOperand) {  in eliminateIVUser()  argument
583     eliminateIVComparison(ICmp, IVOperand);  in eliminateIVUser()
589       simplifyIVRemainder(Bin, IVOperand, IsSRem);  in eliminateIVUser()
609   if (eliminateIdentitySCEV(UseInst, IVOperand))  in eliminateIVUser()
662   Instruction *IVOperand = cast<Instruction>(UseInst->getOperand(0));  in replaceFloatIVWithIntegerIV()  local
664   const SCEV *IV = SE->getSCEV(IVOperand);  in replaceFloatIVWithIntegerIV()
683       if (IVOperand->getType() != CI->getType()) {  in replaceFloatIVWithIntegerIV()
685         StringRef Name = IVOperand->getName();  in replaceFloatIVWithIntegerIV()
688         if (SE->getTypeSizeInBits(IVOperand->getType()) >  in replaceFloatIVWithIntegerIV()
690           Conv = Builder.CreateTrunc(IVOperand, CI->getType(), Name + ".trunc");  in replaceFloatIVWithIntegerIV()
693           Conv = Builder.CreateZExt(IVOperand, CI->getType(), Name + ".zext");  in replaceFloatIVWithIntegerIV()
695           Conv = Builder.CreateSExt(IVOperand, CI->getType(), Name + ".sext");  in replaceFloatIVWithIntegerIV()
698         Conv = IVOperand;  in replaceFloatIVWithIntegerIV()
715                                            Instruction *IVOperand) {  in eliminateIdentitySCEV()  argument
717       UseInst->getType() != IVOperand->getType())  in eliminateIdentitySCEV()
721   if (UseSCEV != SE->getSCEV(IVOperand))  in eliminateIdentitySCEV()
743     if (!DT || !DT->dominates(IVOperand, UseInst))  in eliminateIdentitySCEV()
746   if (!LI->replacementPreservesLCSSAForm(UseInst, IVOperand))  in eliminateIdentitySCEV()
750   if (!impliesPoison(IVOperand, UseInst)) {  in eliminateIdentitySCEV()
752     if (!SE->canReuseInstruction(UseSCEV, IVOperand, DropPoisonGeneratingInsts))  in eliminateIdentitySCEV()
762   UseInst->replaceAllUsesWith(IVOperand);  in eliminateIdentitySCEV()
770                                         Instruction *IVOperand) {  in strengthenBinaryOp()  argument
772           strengthenOverflowingOperation(BO, IVOperand)) ||  in strengthenBinaryOp()
773          (isa<ShlOperator>(BO) && strengthenRightShift(BO, IVOperand));  in strengthenBinaryOp()
779                                                     Instruction *IVOperand) {  in strengthenOverflowingOperation()  argument
803                                           Instruction *IVOperand) {  in strengthenRightShift()  argument
806     ConstantRange IVRange = SE->getUnsignedRange(SE->getSCEV(IVOperand));  in strengthenRightShift()
810                 m_AShr(m_Shl(m_Value(), m_Specific(IVOperand)), m_APInt(C))) ||  in strengthenRightShift()
812                 m_LShr(m_Shl(m_Value(), m_Specific(IVOperand)), m_APInt(C)))) {  in strengthenRightShift()
934     Instruction *IVOperand = UseOper.second;  in simplifyUsers()  local
935     for (unsigned N = 0; IVOperand; ++N) {  in simplifyUsers()
939       Value *NewOper = foldIVUser(UseInst, IVOperand);  in simplifyUsers()
942       IVOperand = dyn_cast<Instruction>(NewOper);  in simplifyUsers()
944     if (!IVOperand)  in simplifyUsers()
947     if (eliminateIVUser(UseInst, IVOperand)) {  in simplifyUsers()
948       pushIVUsers(IVOperand, L, Simplified, SimpleIVUsers);  in simplifyUsers()
953       if (strengthenBinaryOp(BO, IVOperand)) {  in simplifyUsers()
956         pushIVUsers(IVOperand, L, Simplified, SimpleIVUsers);  in simplifyUsers()
963       pushIVUsers(IVOperand, L, Simplified, SimpleIVUsers);  in simplifyUsers()