1028   enum class ExtendKind { Zero, Sign, Unknown };  enum in __anon0030acaf0311::WidenIV
1034   DenseMap<AssertingVH<Instruction>, ExtendKind> ExtendKindMap;
1103   ExtendKind getExtendKind(Instruction *I);
1105   using WidenedRecTy = std::pair<const SCEVAddRecExpr *, ExtendKind>;
1185     ExtendKindMap[OrigPhi] = WI.IsSigned ? ExtendKind::Sign : ExtendKind::Zero;  in WidenIV()
1238   bool IsSigned = getExtendKind(NarrowDef) == ExtendKind::Sign;  in cloneBitwiseIVUser()
1303   bool SignExtend = getExtendKind(NarrowDef) == ExtendKind::Sign;  in cloneArithmeticIVUser()
1329 WidenIV::ExtendKind WidenIV::getExtendKind(Instruction *I) {  in getExtendKind()
1363     return {nullptr, ExtendKind::Unknown};  in getExtendedOperandRecurrence()
1374   ExtendKind ExtKind = getExtendKind(DU.NarrowDef);  in getExtendedOperandRecurrence()
1375   if (ExtKind == ExtendKind::Sign && OBO->hasNoSignedWrap())  in getExtendedOperandRecurrence()
1378   else if (ExtKind == ExtendKind::Zero && OBO->hasNoUnsignedWrap())  in getExtendedOperandRecurrence()
1382     return {nullptr, ExtendKind::Unknown};  in getExtendedOperandRecurrence()
1400     return {nullptr, ExtendKind::Unknown};  in getExtendedOperandRecurrence()
1412     return {nullptr, ExtendKind::Unknown};  in getWideRecurrence()
1419     return {nullptr, ExtendKind::Unknown};  in getWideRecurrence()
1423   ExtendKind ExtKind;  in getWideRecurrence()
1427       ExtKind = ExtendKind::Sign;  in getWideRecurrence()
1430       ExtKind = ExtendKind::Zero;  in getWideRecurrence()
1432   } else if (getExtendKind(DU.NarrowDef) == ExtendKind::Sign) {  in getWideRecurrence()
1434     ExtKind = ExtendKind::Sign;  in getWideRecurrence()
1437     ExtKind = ExtendKind::Zero;  in getWideRecurrence()
1441     return {nullptr, ExtendKind::Unknown};  in getWideRecurrence()
1481   bool IsSigned = getExtendKind(DU.NarrowDef) == ExtendKind::Sign;  in widenLoopCompare()
1545   ExtendKind ExtKind = getExtendKind(NarrowDef);  in widenWithVariantUse()
1546   bool CanSignExtend = ExtKind == ExtendKind::Sign && OBO->hasNoSignedWrap();  in widenWithVariantUse()
1547   bool CanZeroExtend = ExtKind == ExtendKind::Zero && OBO->hasNoUnsignedWrap();  in widenWithVariantUse()
1577       if (ExtKind == ExtendKind::Zero && ICmpInst::isSigned(Pred))  in widenWithVariantUse()
1579       if (ExtKind == ExtendKind::Sign && ICmpInst::isUnsigned(Pred))  in widenWithVariantUse()
1584     if (ExtKind == ExtendKind::Sign)  in widenWithVariantUse()
1607     if (ExtKind != ExtendKind::Zero)  in widenWithVariantUse()
1622     AnotherOpExtKind = ExtendKind::Sign;  in widenWithVariantUse()
1638                              AnotherOpExtKind == ExtendKind::Sign, NarrowUse);  in widenWithVariantUse()
1643                              AnotherOpExtKind == ExtendKind::Sign, NarrowUse);  in widenWithVariantUse()
1682       if (ExtKind == ExtendKind::Zero)  in widenWithVariantUse()
1738     return DU.NeverNegative || getExtendKind(DU.NarrowDef) == ExtendKind::Sign;  in widenIVUse()
1741     return DU.NeverNegative || getExtendKind(DU.NarrowDef) == ExtendKind::Zero;  in widenIVUse()
1790          (WideAddRec.second == ExtendKind::Unknown));  in widenIVUse()
1885   const SCEV *WideIVExpr = getExtendKind(OrigPhi) == ExtendKind::Sign  in createWideIV()