233   DenseMap<LocIdx, SmallSet<DebugVariableID, 4>> ActiveMLocs;
282   bool isCalleeSaved(LocIdx L) const {  in isCalleeSaved()
311     LocationAndQuality(LocIdx L, LocationQuality Q)  in LocationAndQuality()
313     LocIdx getLoc() const {  in getLoc()
315         return LocIdx::MakeIllegalLoc();  in getLoc()
316       return LocIdx(Location);  in getLoc()
333   getLocQualityIfBetter(LocIdx L, LocationQuality Min) const {  in getLocQualityIfBetter()
415       LocIdx M = ValuesPreferredLoc->second.getLoc();  in loadVarInloc()
483       LocIdx Idx = Location.Idx;  in loadInlocs()
556       LocIdx Idx = Location.Idx;  in checkInstForNewValues()
586         LocIdx NewLoc = ValueToLoc.find(Op.ID)->second.getLoc();  in checkInstForNewValues()
705         for (LocIdx Loc : It->second.loc_indices())  in redefVar()
719         LocIdx NewLoc = MTracker->getRegMLoc(Reg);  in redefVar()
743       for (LocIdx Loc : It->second.loc_indices())  in redefVar()
754     SmallVector<std::pair<LocIdx, DebugVariableID>> LostMLocs;  in redefVar()
759       LocIdx NewLoc = Op.Loc;  in redefVar()
768             for (LocIdx Loc : LostVLocIt->second.loc_indices()) {  in redefVar()
802   void clobberMloc(LocIdx MLoc, MachineBasicBlock::iterator Pos,  in clobberMloc()
815   void clobberMloc(LocIdx MLoc, ValueIDNum OldValue,  in clobberMloc()
825     std::optional<LocIdx> NewLoc;  in clobberMloc()
846     SmallVector<std::pair<LocIdx, DebugVariableID>> LostMLocs;  in clobberMloc()
863                       ResolvedDbgOp(LocIdx::MakeIllegalLoc()));  in clobberMloc()
874         for (LocIdx Loc : ActiveVLocIt->second.loc_indices()) {  in clobberMloc()
912   void transferMlocs(LocIdx Src, LocIdx Dst, MachineBasicBlock::iterator Pos) {  in transferMlocs()
1028   LocIDToLocIdx.resize(NumRegs, LocIdx::MakeIllegalLoc());  in MLocTracker()
1089 LocIdx MLocTracker::trackRegister(unsigned ID) {  in trackRegister()
1091   LocIdx NewIdx = LocIdx(LocIdxToIDNum.size());  in trackRegister()
1139       LocIdx Idx = LocIdx(LocIdxToIDNum.size()); // New idx  in getOrTrackSpillLoc()
1152 std::string MLocTracker::LocIdxToName(LocIdx Idx) const {  in LocIdxToName()
1249     LocIdx MLoc = Op.Loc;  in emitLoc()
1343 bool InstrRefBasedLDV::isCalleeSaved(LocIdx L) const {  in isCalleeSaved()
1378 std::optional<LocIdx>
1494       std::optional<LocIdx> L = findLocationForMemOperand(TargetInstr);  in getValueForInstrRef()
1508           LocIdx L = MTracker->LocIDToLocIdx[LocID];  in getValueForInstrRef()
1555     LocIdx L = NewID->getLoc();  in getValueForInstrRef()
1588           LocIdx NewLoc = MTracker->lookupOrTrackRegister(NewReg);  in getValueForInstrRef()
1684     LocIdx CurL = Location.Idx;  in transferDebugInstrRef()
1710     LocIdx FoundLoc = FoundLocs.find(DbgOp.ID)->second.getLoc();  in transferDebugInstrRef()
1727       LocIdx FoundLoc = ValueLoc.second.getLoc();  in transferDebugInstrRef()
1818     LocIdx SpillLoc = MTracker->getSpillMLoc(SpillID);  in transferDebugPHI()
1904         LocIdx L = MTracker->getSpillMLoc(SpillID);  in transferRegisterDef()
1919     LocIdx Loc = MTracker->lookupOrTrackRegister(DeadReg);  in transferRegisterDef()
1947         LocIdx L = MTracker->getSpillMLoc(SpillID);  in transferRegisterDef()
1975     LocIdx SrcL = MTracker->lookupOrTrackRegister(SrcSubReg);  in performCopy()
1976     LocIdx DstL = MTracker->lookupOrTrackRegister(DstSubReg);  in performCopy()
2064       std::optional<LocIdx> MLoc = MTracker->getSpillMLoc(SpillID);  in transferSpillOrRestoreInst()
2087       LocIdx DstLoc = MTracker->getSpillMLoc(SpillID);  in transferSpillOrRestoreInst()
2091         LocIdx SrcLoc = MTracker->getRegMLoc(SrcReg);  in transferSpillOrRestoreInst()
2127       LocIdx SrcIdx = MTracker->getSpillMLoc(SpillID);  in transferSpillOrRestoreInst()
2180   DenseMap<LocIdx, ValueIDNum> ClobberedLocs;  in transferRegisterCopy()
2183       LocIdx ClobberedLoc = MTracker->getRegMLoc(*RAI);  in transferRegisterCopy()
2356       LocIdx Idx = Location.Idx;  in produceMLocTransferFunction()
2397       LocIdx Idx = MTracker->LocIDToLocIdx[ID];  in produceMLocTransferFunction()
2453     LocIdx Idx = Location.Idx;  in mlocJoin()
2539   SmallSet<LocIdx, 32> NormalLocsToPHI;  in placeMLocPHIs()
2542     LocIdx L = Location.Idx;  in placeMLocPHIs()
2575   auto CollectPHIsForLoc = [&](LocIdx L) {  in placeMLocPHIs()
2597   auto InstallPHIsAtLoc = [&PHIBlocks, &MInLocs](LocIdx L) {  in placeMLocPHIs()
2603   for (LocIdx L : NormalLocsToPHI) {  in placeMLocPHIs()
2614       LocIdx L = MTracker->getSpillMLoc(SpillID);  in placeMLocPHIs()
2628         LocIdx ThisL = MTracker->getSpillMLoc(ThisID);  in placeMLocPHIs()
2636     LocIdx L = MTracker->lookupOrTrackRegister(R);  in placeMLocPHIs()
2649       LocIdx AliasLoc = MTracker->lookupOrTrackRegister(*RAI);  in placeMLocPHIs()
2699     SmallVector<std::pair<LocIdx, ValueIDNum>, 32> ToRemap;  in buildMLocValueMap()
2884   SmallVector<SmallVector<LocIdx, 4>, 8> Locs;  in pickOperandPHILoc()
2907           Locs.back().push_back(LocIdx(I));  in pickOperandPHILoc()
2918         ValueIDNum MPHI(MBB.getNumber(), 0, LocIdx(I));  in pickOperandPHILoc()
2920           Locs.back().push_back(LocIdx(I));  in pickOperandPHILoc()
2929   SmallVector<LocIdx, 4> CandidateLocs = Locs[0];  in pickOperandPHILoc()
2932     SmallVector<LocIdx, 4> NewCandidates;  in pickOperandPHILoc()
2943   LocIdx L = *CandidateLocs.begin();  in pickOperandPHILoc()
3752     LocIdx LocNo = Num.getLoc();  in ExtendRanges()
3947   LocIdx Loc;
3951   LDVSSAUpdater(LocIdx L, const FuncValueTable &MLiveIns)  in LDVSSAUpdater()
4152   LocIdx Loc = *LowerIt->ReadLoc;  in resolveDbgPHIsImpl()