1048   enum class ExtendKind { Zero, Sign, Unknown };  enum in __anoncf1033750311::WidenIV
1054   DenseMap<AssertingVH<Instruction>, ExtendKind> ExtendKindMap;
1123   ExtendKind getExtendKind(Instruction *I);
1125   using WidenedRecTy = std::pair<const SCEVAddRecExpr *, ExtendKind>;
1205     ExtendKindMap[OrigPhi] = WI.IsSigned ? ExtendKind::Sign : ExtendKind::Zero;  in WidenIV()
1258   bool IsSigned = getExtendKind(NarrowDef) == ExtendKind::Sign;  in cloneBitwiseIVUser()
1323   bool SignExtend = getExtendKind(NarrowDef) == ExtendKind::Sign;  in cloneArithmeticIVUser()
1349 WidenIV::ExtendKind WidenIV::getExtendKind(Instruction *I) {  in getExtendKind()
1383     return {nullptr, ExtendKind::Unknown};  in getExtendedOperandRecurrence()
1393   ExtendKind ExtKind = getExtendKind(DU.NarrowDef);  in getExtendedOperandRecurrence()
1394   if (!(ExtKind == ExtendKind::Sign && OBO->hasNoSignedWrap()) &&  in getExtendedOperandRecurrence()
1395       !(ExtKind == ExtendKind::Zero && OBO->hasNoUnsignedWrap())) {  in getExtendedOperandRecurrence()
1396     ExtKind = ExtendKind::Unknown;  in getExtendedOperandRecurrence()
1404         ExtKind = ExtendKind::Sign;  in getExtendedOperandRecurrence()
1406         ExtKind = ExtendKind::Zero;  in getExtendedOperandRecurrence()
1413   if (ExtKind == ExtendKind::Sign)  in getExtendedOperandRecurrence()
1415   else if (ExtKind == ExtendKind::Zero)  in getExtendedOperandRecurrence()
1418     return {nullptr, ExtendKind::Unknown};  in getExtendedOperandRecurrence()
1436     return {nullptr, ExtendKind::Unknown};  in getExtendedOperandRecurrence()
1448     return {nullptr, ExtendKind::Unknown};  in getWideRecurrence()
1455     return {nullptr, ExtendKind::Unknown};  in getWideRecurrence()
1459   ExtendKind ExtKind;  in getWideRecurrence()
1463       ExtKind = ExtendKind::Sign;  in getWideRecurrence()
1466       ExtKind = ExtendKind::Zero;  in getWideRecurrence()
1468   } else if (getExtendKind(DU.NarrowDef) == ExtendKind::Sign) {  in getWideRecurrence()
1470     ExtKind = ExtendKind::Sign;  in getWideRecurrence()
1473     ExtKind = ExtendKind::Zero;  in getWideRecurrence()
1477     return {nullptr, ExtendKind::Unknown};  in getWideRecurrence()
1517   bool IsSigned = getExtendKind(DU.NarrowDef) == ExtendKind::Sign;  in widenLoopCompare()
1577   ExtendKind ExtKind = getExtendKind(NarrowDef);  in widenWithVariantUse()
1578   bool CanSignExtend = ExtKind == ExtendKind::Sign && OBO->hasNoSignedWrap();  in widenWithVariantUse()
1579   bool CanZeroExtend = ExtKind == ExtendKind::Zero && OBO->hasNoUnsignedWrap();  in widenWithVariantUse()
1609       if (ExtKind == ExtendKind::Zero && ICmpInst::isSigned(Pred))  in widenWithVariantUse()
1611       if (ExtKind == ExtendKind::Sign && ICmpInst::isUnsigned(Pred))  in widenWithVariantUse()
1616     if (ExtKind == ExtendKind::Sign)  in widenWithVariantUse()
1639     if (ExtKind != ExtendKind::Zero)  in widenWithVariantUse()
1654     AnotherOpExtKind = ExtendKind::Sign;  in widenWithVariantUse()
1670                              AnotherOpExtKind == ExtendKind::Sign, NarrowUse);  in widenWithVariantUse()
1675                              AnotherOpExtKind == ExtendKind::Sign, NarrowUse);  in widenWithVariantUse()
1715       if (ExtKind == ExtendKind::Zero)  in widenWithVariantUse()
1772     return DU.NeverNegative || getExtendKind(DU.NarrowDef) == ExtendKind::Sign;  in widenIVUse()
1775     return DU.NeverNegative || getExtendKind(DU.NarrowDef) == ExtendKind::Zero;  in widenIVUse()
1824            (WideAddRec.second == ExtendKind::Unknown));  in widenIVUse()
1924   const SCEV *WideIVExpr = getExtendKind(OrigPhi) == ExtendKind::Sign  in createWideIV()