904   Instruction *NarrowDef = nullptr;  member
915       : NarrowDef(ND), NarrowUse(NU), WideDef(WD),  in NarrowIVDefUse()
973   void calculatePostIncRange(Instruction *NarrowDef, Instruction *NarrowUser);
1023   void pushNarrowIVUsers(Instruction *NarrowDef, Instruction *WideDef);
1069   Instruction *NarrowDef = DU.NarrowDef;  in cloneBitwiseIVUser()  local
1078   bool IsSigned = getExtendKind(NarrowDef) == SignExtended;  in cloneBitwiseIVUser()
1079   Value *LHS = (NarrowUse->getOperand(0) == NarrowDef)  in cloneBitwiseIVUser()
1083   Value *RHS = (NarrowUse->getOperand(1) == NarrowDef)  in cloneBitwiseIVUser()
1100   Instruction *NarrowDef = DU.NarrowDef;  in cloneArithmeticIVUser()  local
1105   unsigned IVOpIdx = (NarrowUse->getOperand(0) == NarrowDef) ? 0 : 1;  in cloneArithmeticIVUser()
1163   bool SignExtend = getExtendKind(NarrowDef) == SignExtended;  in cloneArithmeticIVUser()
1170   Value *LHS = (NarrowUse->getOperand(0) == NarrowDef)  in cloneArithmeticIVUser()
1174   Value *RHS = (NarrowUse->getOperand(1) == NarrowDef)  in cloneArithmeticIVUser()
1223       DU.NarrowUse->getOperand(0) == DU.NarrowDef ? 1 : 0;  in getExtendedOperandRecurrence()
1224   assert(DU.NarrowUse->getOperand(1-ExtendOperIdx) == DU.NarrowDef && "bad DU");  in getExtendedOperandRecurrence()
1229   ExtendKind ExtKind = getExtendKind(DU.NarrowDef);  in getExtendedOperandRecurrence()
1287   } else if (getExtendKind(DU.NarrowDef) == SignExtended) {  in getWideRecurrence()
1306       getInsertPointForUses(DU.NarrowUse, DU.NarrowDef, DT, LI));  in truncateIVUse()
1307   Value *Trunc = Builder.CreateTrunc(DU.WideDef, DU.NarrowDef->getType());  in truncateIVUse()
1308   DU.NarrowUse->replaceUsesOfWith(DU.NarrowDef, Trunc);  in truncateIVUse()
1333   bool IsSigned = getExtendKind(DU.NarrowDef) == SignExtended;  in widenLoopCompare()
1337   Value *Op = Cmp->getOperand(Cmp->getOperand(0) == DU.NarrowDef ? 1 : 0);  in widenLoopCompare()
1344       getInsertPointForUses(DU.NarrowUse, DU.NarrowDef, DT, LI));  in widenLoopCompare()
1345   DU.NarrowUse->replaceUsesOfWith(DU.NarrowDef, DU.WideDef);  in widenLoopCompare()
1370   Instruction *NarrowDef = DU.NarrowDef;  in widenWithVariantLoadUse()  local
1382   unsigned ExtendOperIdx = DU.NarrowUse->getOperand(0) == NarrowDef ? 1 : 0;  in widenWithVariantLoadUse()
1383   assert(DU.NarrowUse->getOperand(1 - ExtendOperIdx) == DU.NarrowDef &&  in widenWithVariantLoadUse()
1389   ExtendKind ExtKind = getExtendKind(NarrowDef);  in widenWithVariantLoadUse()
1440   Instruction *NarrowDef = DU.NarrowDef;  in widenWithVariantLoadUseCodegen()  local
1443   ExtendKind ExtKind = getExtendKind(NarrowDef);  in widenWithVariantLoadUseCodegen()
1448   Value *LHS = (NarrowUse->getOperand(0) == NarrowDef)  in widenWithVariantLoadUseCodegen()
1452   Value *RHS = (NarrowUse->getOperand(1) == NarrowDef)  in widenWithVariantLoadUseCodegen()
1498   assert(ExtendKindMap.count(DU.NarrowDef) &&  in widenIVUse()
1521         Value *Trunc = Builder.CreateTrunc(WidePhi, DU.NarrowDef->getType());  in widenIVUse()
1534     return DU.NeverNegative || getExtendKind(DU.NarrowDef) == SignExtended;  in widenIVUse()
1537     return DU.NeverNegative || getExtendKind(DU.NarrowDef) == ZeroExtended;  in widenIVUse()
1559         DU.NarrowUse->replaceUsesOfWith(DU.NarrowDef, DU.WideDef);  in widenIVUse()
1643 void WidenIV::pushNarrowIVUsers(Instruction *NarrowDef, Instruction *WideDef) {  in pushNarrowIVUsers()  argument
1644   const SCEV *NarrowSCEV = SE->getSCEV(NarrowDef);  in pushNarrowIVUsers()
1648   for (User *U : NarrowDef->users()) {  in pushNarrowIVUsers()
1658       if (auto RangeInfo = getPostIncRangeInfo(NarrowDef, NarrowUser))  in pushNarrowIVUsers()
1662     NarrowIVUsers.emplace_back(NarrowDef, NarrowUser, WideDef,  in pushNarrowIVUsers()
1758     if (DU.NarrowDef->use_empty())  in createWideIV()
1759       DeadInsts.emplace_back(DU.NarrowDef);  in createWideIV()
1775 void WidenIV::calculatePostIncRange(Instruction *NarrowDef,  in calculatePostIncRange()  argument
1781   if (!match(NarrowDef, m_NSWAdd(m_Value(NarrowDefLHS),  in calculatePostIncRange()
1803     updatePostIncRangeInfo(NarrowDef, NarrowUser, NarrowDefRange);  in calculatePostIncRange()
1861     Instruction *NarrowDef = Worklist.pop_back_val();  in calculatePostIncRanges()  local
1863     for (Use &U : NarrowDef->uses()) {  in calculatePostIncRanges()
1876       calculatePostIncRange(NarrowDef, NarrowUser);  in calculatePostIncRanges()