1390     auto &LocInfo = LocStackInfo[UseMLOC];  in optimizeUsesInBlock()  local
1394     if (LocInfo.PopEpoch != PopEpoch) {  in optimizeUsesInBlock()
1395       LocInfo.PopEpoch = PopEpoch;  in optimizeUsesInBlock()
1396       LocInfo.StackEpoch = StackEpoch;  in optimizeUsesInBlock()
1408       if (LocInfo.LowerBoundBlock && LocInfo.LowerBoundBlock != BB &&  in optimizeUsesInBlock()
1409           !DT->dominates(LocInfo.LowerBoundBlock, BB)) {  in optimizeUsesInBlock()
1413         LocInfo.LowerBound = 0;  in optimizeUsesInBlock()
1414         LocInfo.LowerBoundBlock = VersionStack[0]->getBlock();  in optimizeUsesInBlock()
1415         LocInfo.LastKillValid = false;  in optimizeUsesInBlock()
1417     } else if (LocInfo.StackEpoch != StackEpoch) {  in optimizeUsesInBlock()
1421       LocInfo.PopEpoch = PopEpoch;  in optimizeUsesInBlock()
1422       LocInfo.StackEpoch = StackEpoch;  in optimizeUsesInBlock()
1424     if (!LocInfo.LastKillValid) {  in optimizeUsesInBlock()
1425       LocInfo.LastKill = VersionStack.size() - 1;  in optimizeUsesInBlock()
1426       LocInfo.LastKillValid = true;  in optimizeUsesInBlock()
1431     assert(LocInfo.LowerBound < VersionStack.size() &&  in optimizeUsesInBlock()
1433     assert(LocInfo.LastKill < VersionStack.size() &&  in optimizeUsesInBlock()
1438     if (UpperBound - LocInfo.LowerBound > MaxCheckLimit) {  in optimizeUsesInBlock()
1442                         << UpperBound - LocInfo.LowerBound  in optimizeUsesInBlock()
1446       LocInfo.LastKillValid = false;  in optimizeUsesInBlock()
1451     while (UpperBound > LocInfo.LowerBound) {  in optimizeUsesInBlock()
1478     if (FoundClobberResult || UpperBound < LocInfo.LastKill) {  in optimizeUsesInBlock()
1480       LocInfo.LastKill = UpperBound;  in optimizeUsesInBlock()
1484       MU->setDefiningAccess(VersionStack[LocInfo.LastKill], true);  in optimizeUsesInBlock()
1486     LocInfo.LowerBound = VersionStack.size() - 1;  in optimizeUsesInBlock()
1487     LocInfo.LowerBoundBlock = BB;  in optimizeUsesInBlock()