832   Instruction *NarrowUse = nullptr;  member
842       : NarrowDef(ND), NarrowUse(NU), WideDef(WD),  in NarrowIVDefUse()
901   const SCEVAddRecExpr *getWideRecurrence(Instruction *NarrowUse);
946   unsigned Opcode = DU.NarrowUse->getOpcode();  in cloneIVUser()
967   Instruction *NarrowUse = DU.NarrowUse;  in cloneBitwiseIVUser()  local
971   DEBUG(dbgs() << "Cloning bitwise IVUser: " << *NarrowUse << "\n");  in cloneBitwiseIVUser()
977   Value *LHS = (NarrowUse->getOperand(0) == NarrowDef)  in cloneBitwiseIVUser()
979                    : createExtendInst(NarrowUse->getOperand(0), WideType,  in cloneBitwiseIVUser()
980                                       IsSigned, NarrowUse);  in cloneBitwiseIVUser()
981   Value *RHS = (NarrowUse->getOperand(1) == NarrowDef)  in cloneBitwiseIVUser()
983                    : createExtendInst(NarrowUse->getOperand(1), WideType,  in cloneBitwiseIVUser()
984                                       IsSigned, NarrowUse);  in cloneBitwiseIVUser()
986   auto *NarrowBO = cast<BinaryOperator>(NarrowUse);  in cloneBitwiseIVUser()
989   IRBuilder<> Builder(NarrowUse);  in cloneBitwiseIVUser()
997   Instruction *NarrowUse = DU.NarrowUse;  in cloneArithmeticIVUser()  local
1001   DEBUG(dbgs() << "Cloning arithmetic IVUser: " << *NarrowUse << "\n");  in cloneArithmeticIVUser()
1003   unsigned IVOpIdx = (NarrowUse->getOperand(0) == NarrowDef) ? 0 : 1;  in cloneArithmeticIVUser()
1026       const SCEV *NarrowRHS = SE->getSCEV(NarrowUse->getOperand(1));  in cloneArithmeticIVUser()
1029       const SCEV *NarrowLHS = SE->getSCEV(NarrowUse->getOperand(0));  in cloneArithmeticIVUser()
1037     switch (NarrowUse->getOpcode()) {  in cloneArithmeticIVUser()
1068   Value *LHS = (NarrowUse->getOperand(0) == NarrowDef)  in cloneArithmeticIVUser()
1070                    : createExtendInst(NarrowUse->getOperand(0), WideType,  in cloneArithmeticIVUser()
1071                                       SignExtend, NarrowUse);  in cloneArithmeticIVUser()
1072   Value *RHS = (NarrowUse->getOperand(1) == NarrowDef)  in cloneArithmeticIVUser()
1074                    : createExtendInst(NarrowUse->getOperand(1), WideType,  in cloneArithmeticIVUser()
1075                                       SignExtend, NarrowUse);  in cloneArithmeticIVUser()
1077   auto *NarrowBO = cast<BinaryOperator>(NarrowUse);  in cloneArithmeticIVUser()
1081   IRBuilder<> Builder(NarrowUse);  in cloneArithmeticIVUser()
1106   const unsigned OpCode = DU.NarrowUse->getOpcode();  in getExtendedOperandRecurrence()
1115       DU.NarrowUse->getOperand(0) == DU.NarrowDef ? 1 : 0;  in getExtendedOperandRecurrence()
1116   assert(DU.NarrowUse->getOperand(1-ExtendOperIdx) == DU.NarrowDef && "bad DU");  in getExtendedOperandRecurrence()
1120     cast<OverflowingBinaryOperator>(DU.NarrowUse);  in getExtendedOperandRecurrence()
1123       SE->getSCEV(DU.NarrowUse->getOperand(ExtendOperIdx)), WideType);  in getExtendedOperandRecurrence()
1126       SE->getSCEV(DU.NarrowUse->getOperand(ExtendOperIdx)), WideType);  in getExtendedOperandRecurrence()
1154 const SCEVAddRecExpr *WidenIV::getWideRecurrence(Instruction *NarrowUse) {  in getWideRecurrence()  argument
1155   if (!SE->isSCEVable(NarrowUse->getType()))  in getWideRecurrence()
1158   const SCEV *NarrowExpr = SE->getSCEV(NarrowUse);  in getWideRecurrence()
1179         << " for user " << *DU.NarrowUse << "\n");  in truncateIVUse()
1181       getInsertPointForUses(DU.NarrowUse, DU.NarrowDef, DT, LI));  in truncateIVUse()
1183   DU.NarrowUse->replaceUsesOfWith(DU.NarrowDef, Trunc);  in truncateIVUse()
1190   ICmpInst *Cmp = dyn_cast<ICmpInst>(DU.NarrowUse);  in widenLoopCompare()
1219       getInsertPointForUses(DU.NarrowUse, DU.NarrowDef, DT, LI));  in widenLoopCompare()
1220   DU.NarrowUse->replaceUsesOfWith(DU.NarrowDef, DU.WideDef);  in widenLoopCompare()
1225     DU.NarrowUse->replaceUsesOfWith(Op, ExtOp);  in widenLoopCompare()
1235   if (PHINode *UsePhi = dyn_cast<PHINode>(DU.NarrowUse)) {  in widenIVUse()
1258   if (IsSigned ? isa<SExtInst>(DU.NarrowUse) : isa<ZExtInst>(DU.NarrowUse)) {  in widenIVUse()
1260     if (DU.NarrowUse->getType() != WideType) {  in widenIVUse()
1261       unsigned CastWidth = SE->getTypeSizeInBits(DU.NarrowUse->getType());  in widenIVUse()
1265         IRBuilder<> Builder(DU.NarrowUse);  in widenIVUse()
1266         NewDef = Builder.CreateTrunc(DU.WideDef, DU.NarrowUse->getType());  in widenIVUse()
1273               << " not wide enough to subsume " << *DU.NarrowUse << "\n");  in widenIVUse()
1274         DU.NarrowUse->replaceUsesOfWith(DU.NarrowDef, DU.WideDef);  in widenIVUse()
1275         NewDef = DU.NarrowUse;  in widenIVUse()
1278     if (NewDef != DU.NarrowUse) {  in widenIVUse()
1279       DEBUG(dbgs() << "INDVARS: eliminating " << *DU.NarrowUse  in widenIVUse()
1282       DU.NarrowUse->replaceAllUsesWith(NewDef);  in widenIVUse()
1283       DeadInsts.emplace_back(DU.NarrowUse);  in widenIVUse()
1296   const SCEVAddRecExpr *WideAddRec = getWideRecurrence(DU.NarrowUse);  in widenIVUse()
1314   assert(DU.NarrowUse != DU.NarrowUse->getParent()->getTerminator() &&  in widenIVUse()
1321       && Rewriter.hoistIVInc(WideInc, DU.NarrowUse))  in widenIVUse()
1433       pushNarrowIVUsers(DU.NarrowUse, WideUse);  in createWideIV()