852   Instruction *NarrowUse = nullptr;  member
862       : NarrowDef(ND), NarrowUse(NU), WideDef(WD),  in NarrowIVDefUse()
921   const SCEVAddRecExpr *getWideRecurrence(Instruction *NarrowUse);
966   unsigned Opcode = DU.NarrowUse->getOpcode();  in cloneIVUser()
987   Instruction *NarrowUse = DU.NarrowUse;  in cloneBitwiseIVUser()  local
991   DEBUG(dbgs() << "Cloning bitwise IVUser: " << *NarrowUse << "\n");  in cloneBitwiseIVUser()
997   Value *LHS = (NarrowUse->getOperand(0) == NarrowDef)  in cloneBitwiseIVUser()
999                    : createExtendInst(NarrowUse->getOperand(0), WideType,  in cloneBitwiseIVUser()
1000                                       IsSigned, NarrowUse);  in cloneBitwiseIVUser()
1001   Value *RHS = (NarrowUse->getOperand(1) == NarrowDef)  in cloneBitwiseIVUser()
1003                    : createExtendInst(NarrowUse->getOperand(1), WideType,  in cloneBitwiseIVUser()
1004                                       IsSigned, NarrowUse);  in cloneBitwiseIVUser()
1006   auto *NarrowBO = cast<BinaryOperator>(NarrowUse);  in cloneBitwiseIVUser()
1009   IRBuilder<> Builder(NarrowUse);  in cloneBitwiseIVUser()
1017   Instruction *NarrowUse = DU.NarrowUse;  in cloneArithmeticIVUser()  local
1021   DEBUG(dbgs() << "Cloning arithmetic IVUser: " << *NarrowUse << "\n");  in cloneArithmeticIVUser()
1023   unsigned IVOpIdx = (NarrowUse->getOperand(0) == NarrowDef) ? 0 : 1;  in cloneArithmeticIVUser()
1046       const SCEV *NarrowRHS = SE->getSCEV(NarrowUse->getOperand(1));  in cloneArithmeticIVUser()
1049       const SCEV *NarrowLHS = SE->getSCEV(NarrowUse->getOperand(0));  in cloneArithmeticIVUser()
1057     switch (NarrowUse->getOpcode()) {  in cloneArithmeticIVUser()
1088   Value *LHS = (NarrowUse->getOperand(0) == NarrowDef)  in cloneArithmeticIVUser()
1090                    : createExtendInst(NarrowUse->getOperand(0), WideType,  in cloneArithmeticIVUser()
1091                                       SignExtend, NarrowUse);  in cloneArithmeticIVUser()
1092   Value *RHS = (NarrowUse->getOperand(1) == NarrowDef)  in cloneArithmeticIVUser()
1094                    : createExtendInst(NarrowUse->getOperand(1), WideType,  in cloneArithmeticIVUser()
1095                                       SignExtend, NarrowUse);  in cloneArithmeticIVUser()
1097   auto *NarrowBO = cast<BinaryOperator>(NarrowUse);  in cloneArithmeticIVUser()
1101   IRBuilder<> Builder(NarrowUse);  in cloneArithmeticIVUser()
1126   const unsigned OpCode = DU.NarrowUse->getOpcode();  in getExtendedOperandRecurrence()
1135       DU.NarrowUse->getOperand(0) == DU.NarrowDef ? 1 : 0;  in getExtendedOperandRecurrence()
1136   assert(DU.NarrowUse->getOperand(1-ExtendOperIdx) == DU.NarrowDef && "bad DU");  in getExtendedOperandRecurrence()
1140     cast<OverflowingBinaryOperator>(DU.NarrowUse);  in getExtendedOperandRecurrence()
1143       SE->getSCEV(DU.NarrowUse->getOperand(ExtendOperIdx)), WideType);  in getExtendedOperandRecurrence()
1146       SE->getSCEV(DU.NarrowUse->getOperand(ExtendOperIdx)), WideType);  in getExtendedOperandRecurrence()
1174 const SCEVAddRecExpr *WidenIV::getWideRecurrence(Instruction *NarrowUse) {  in getWideRecurrence()  argument
1175   if (!SE->isSCEVable(NarrowUse->getType()))  in getWideRecurrence()
1178   const SCEV *NarrowExpr = SE->getSCEV(NarrowUse);  in getWideRecurrence()
1199         << " for user " << *DU.NarrowUse << "\n");  in truncateIVUse()
1201       getInsertPointForUses(DU.NarrowUse, DU.NarrowDef, DT, LI));  in truncateIVUse()
1203   DU.NarrowUse->replaceUsesOfWith(DU.NarrowDef, Trunc);  in truncateIVUse()
1210   ICmpInst *Cmp = dyn_cast<ICmpInst>(DU.NarrowUse);  in widenLoopCompare()
1239       getInsertPointForUses(DU.NarrowUse, DU.NarrowDef, DT, LI));  in widenLoopCompare()
1240   DU.NarrowUse->replaceUsesOfWith(DU.NarrowDef, DU.WideDef);  in widenLoopCompare()
1245     DU.NarrowUse->replaceUsesOfWith(Op, ExtOp);  in widenLoopCompare()
1255   if (PHINode *UsePhi = dyn_cast<PHINode>(DU.NarrowUse)) {  in widenIVUse()
1284   if (IsSigned ? isa<SExtInst>(DU.NarrowUse) : isa<ZExtInst>(DU.NarrowUse)) {  in widenIVUse()
1286     if (DU.NarrowUse->getType() != WideType) {  in widenIVUse()
1287       unsigned CastWidth = SE->getTypeSizeInBits(DU.NarrowUse->getType());  in widenIVUse()
1291         IRBuilder<> Builder(DU.NarrowUse);  in widenIVUse()
1292         NewDef = Builder.CreateTrunc(DU.WideDef, DU.NarrowUse->getType());  in widenIVUse()
1299               << " not wide enough to subsume " << *DU.NarrowUse << "\n");  in widenIVUse()
1300         DU.NarrowUse->replaceUsesOfWith(DU.NarrowDef, DU.WideDef);  in widenIVUse()
1301         NewDef = DU.NarrowUse;  in widenIVUse()
1304     if (NewDef != DU.NarrowUse) {  in widenIVUse()
1305       DEBUG(dbgs() << "INDVARS: eliminating " << *DU.NarrowUse  in widenIVUse()
1308       DU.NarrowUse->replaceAllUsesWith(NewDef);  in widenIVUse()
1309       DeadInsts.emplace_back(DU.NarrowUse);  in widenIVUse()
1322   const SCEVAddRecExpr *WideAddRec = getWideRecurrence(DU.NarrowUse);  in widenIVUse()
1340   assert(DU.NarrowUse != DU.NarrowUse->getParent()->getTerminator() &&  in widenIVUse()
1346   if (WideAddRec == WideIncExpr && Rewriter.hoistIVInc(WideInc, DU.NarrowUse))  in widenIVUse()
1458       pushNarrowIVUsers(DU.NarrowUse, WideUse);  in createWideIV()