307   std::vector<UsedGlobalSet> UsedGlobalSets;  in doMerge()  local
311     UsedGlobalSets.emplace_back(Globals.size());  in doMerge()
312     return UsedGlobalSets.back();  in doMerge()
344     EncounteredUGS.assign(UsedGlobalSets.size(), 0);  in doMerge()
387             CurGVOnlySetIdx = UsedGlobalSets.size();  in doMerge()
390             ++UsedGlobalSets[CurGVOnlySetIdx].UsageCount;  in doMerge()
399         if (UsedGlobalSets[UGSIdx].Globals.test(GI)) {  in doMerge()
400           ++UsedGlobalSets[UGSIdx].UsageCount;  in doMerge()
405         --UsedGlobalSets[UGSIdx].UsageCount;  in doMerge()
410           ++UsedGlobalSets[ExpandedIdx].UsageCount;  in doMerge()
418             UsedGlobalSets.size();  in doMerge()
422         NewUGS.Globals |= UsedGlobalSets[UGSIdx].Globals;  in doMerge()
432     for (const UsedGlobalSet &UGS : UsedGlobalSets) {  in doMerge()
447   llvm::stable_sort(UsedGlobalSets,  in doMerge()
462   for (const UsedGlobalSet &UGS : llvm::reverse(UsedGlobalSets)) {  in doMerge()