1415     auto &LocInfo = LocStackInfo[UseMLOC];  in optimizeUsesInBlock()  local
1419     if (LocInfo.PopEpoch != PopEpoch) {  in optimizeUsesInBlock()
1420       LocInfo.PopEpoch = PopEpoch;  in optimizeUsesInBlock()
1421       LocInfo.StackEpoch = StackEpoch;  in optimizeUsesInBlock()
1433       if (LocInfo.LowerBoundBlock && LocInfo.LowerBoundBlock != BB &&  in optimizeUsesInBlock()
1434           !DT->dominates(LocInfo.LowerBoundBlock, BB)) {  in optimizeUsesInBlock()
1438         LocInfo.LowerBound = 0;  in optimizeUsesInBlock()
1439         LocInfo.LowerBoundBlock = VersionStack[0]->getBlock();  in optimizeUsesInBlock()
1440         LocInfo.LastKillValid = false;  in optimizeUsesInBlock()
1442     } else if (LocInfo.StackEpoch != StackEpoch) {  in optimizeUsesInBlock()
1446       LocInfo.PopEpoch = PopEpoch;  in optimizeUsesInBlock()
1447       LocInfo.StackEpoch = StackEpoch;  in optimizeUsesInBlock()
1449     if (!LocInfo.LastKillValid) {  in optimizeUsesInBlock()
1450       LocInfo.LastKill = VersionStack.size() - 1;  in optimizeUsesInBlock()
1451       LocInfo.LastKillValid = true;  in optimizeUsesInBlock()
1452       LocInfo.AR = AliasResult::MayAlias;  in optimizeUsesInBlock()
1457     assert(LocInfo.LowerBound < VersionStack.size() &&  in optimizeUsesInBlock()
1459     assert(LocInfo.LastKill < VersionStack.size() &&  in optimizeUsesInBlock()
1464     if (UpperBound - LocInfo.LowerBound > MaxCheckLimit) {  in optimizeUsesInBlock()
1468                         << UpperBound - LocInfo.LowerBound  in optimizeUsesInBlock()
1472       LocInfo.LastKillValid = false;  in optimizeUsesInBlock()
1477     while (UpperBound > LocInfo.LowerBound) {  in optimizeUsesInBlock()
1498         LocInfo.AR = CA.AR;  in optimizeUsesInBlock()
1508     if (FoundClobberResult || UpperBound < LocInfo.LastKill) {  in optimizeUsesInBlock()
1511         LocInfo.AR = None;  in optimizeUsesInBlock()
1512       MU->setDefiningAccess(VersionStack[UpperBound], true, LocInfo.AR);  in optimizeUsesInBlock()
1513       LocInfo.LastKill = UpperBound;  in optimizeUsesInBlock()
1517       MU->setDefiningAccess(VersionStack[LocInfo.LastKill], true, LocInfo.AR);  in optimizeUsesInBlock()
1519     LocInfo.LowerBound = VersionStack.size() - 1;  in optimizeUsesInBlock()
1520     LocInfo.LowerBoundBlock = BB;  in optimizeUsesInBlock()