1285     auto &LocInfo = LocStackInfo[UseMLOC];  in optimizeUsesInBlock()  local
1289     if (LocInfo.PopEpoch != PopEpoch) {  in optimizeUsesInBlock()
1290       LocInfo.PopEpoch = PopEpoch;  in optimizeUsesInBlock()
1291       LocInfo.StackEpoch = StackEpoch;  in optimizeUsesInBlock()
1303       if (LocInfo.LowerBoundBlock && LocInfo.LowerBoundBlock != BB &&  in optimizeUsesInBlock()
1304           !DT->dominates(LocInfo.LowerBoundBlock, BB)) {  in optimizeUsesInBlock()
1308         LocInfo.LowerBound = 0;  in optimizeUsesInBlock()
1309         LocInfo.LowerBoundBlock = VersionStack[0]->getBlock();  in optimizeUsesInBlock()
1310         LocInfo.LastKillValid = false;  in optimizeUsesInBlock()
1312     } else if (LocInfo.StackEpoch != StackEpoch) {  in optimizeUsesInBlock()
1316       LocInfo.PopEpoch = PopEpoch;  in optimizeUsesInBlock()
1317       LocInfo.StackEpoch = StackEpoch;  in optimizeUsesInBlock()
1319     if (!LocInfo.LastKillValid) {  in optimizeUsesInBlock()
1320       LocInfo.LastKill = VersionStack.size() - 1;  in optimizeUsesInBlock()
1321       LocInfo.LastKillValid = true;  in optimizeUsesInBlock()
1322       LocInfo.AR = MayAlias;  in optimizeUsesInBlock()
1327     assert(LocInfo.LowerBound < VersionStack.size() &&  in optimizeUsesInBlock()
1329     assert(LocInfo.LastKill < VersionStack.size() &&  in optimizeUsesInBlock()
1334     if (UpperBound - LocInfo.LowerBound > MaxCheckLimit) {  in optimizeUsesInBlock()
1338                         << UpperBound - LocInfo.LowerBound  in optimizeUsesInBlock()
1342       LocInfo.LastKillValid = false;  in optimizeUsesInBlock()
1346     while (UpperBound > LocInfo.LowerBound) {  in optimizeUsesInBlock()
1367         LocInfo.AR = MustAlias;  in optimizeUsesInBlock()
1373         LocInfo.AR = CA.AR;  in optimizeUsesInBlock()
1383     if (FoundClobberResult || UpperBound < LocInfo.LastKill) {  in optimizeUsesInBlock()
1386         LocInfo.AR = None;  in optimizeUsesInBlock()
1387       MU->setDefiningAccess(VersionStack[UpperBound], true, LocInfo.AR);  in optimizeUsesInBlock()
1388       LocInfo.LastKill = UpperBound;  in optimizeUsesInBlock()
1392       MU->setDefiningAccess(VersionStack[LocInfo.LastKill], true, LocInfo.AR);  in optimizeUsesInBlock()
1394     LocInfo.LowerBound = VersionStack.size() - 1;  in optimizeUsesInBlock()
1395     LocInfo.LowerBoundBlock = BB;  in optimizeUsesInBlock()