439   auto mayPreserveGlobal = [&](GlobalValue &GV) {  in preserveDiscardableGVs()  argument
440     if (!GV.isDiscardableIfUnused() || GV.isDeclaration() ||  in preserveDiscardableGVs()
441         !mustPreserveGV(GV))  in preserveDiscardableGVs()
443     if (GV.hasAvailableExternallyLinkage())  in preserveDiscardableGVs()
446            GV.getName() + "'").str());  in preserveDiscardableGVs()
447     if (GV.hasInternalLinkage())  in preserveDiscardableGVs()
449                    GV.getName() + "'").str());  in preserveDiscardableGVs()
450     Used.push_back(&GV);  in preserveDiscardableGVs()
452   for (auto &GV : TheModule)  in preserveDiscardableGVs()  local
453     mayPreserveGlobal(GV);  in preserveDiscardableGVs()
454   for (auto &GV : TheModule.globals())  in preserveDiscardableGVs()  local
455     mayPreserveGlobal(GV);  in preserveDiscardableGVs()
456   for (auto &GV : TheModule.aliases())  in preserveDiscardableGVs()  local
457     mayPreserveGlobal(GV);  in preserveDiscardableGVs()
473   auto mustPreserveGV = [&](const GlobalValue &GV) -> bool {  in applyScopeRestrictions()  argument
475     if (!GV.hasName())  in applyScopeRestrictions()
482     MangledName.reserve(GV.getName().size() + 1);  in applyScopeRestrictions()
483     Mang.getNameWithPrefix(MangledName, &GV, /*CannotUsePrivateLabel=*/false);  in applyScopeRestrictions()
497     auto RecordLinkage = [&](const GlobalValue &GV) {  in applyScopeRestrictions()  argument
498       if (!GV.hasAvailableExternallyLinkage() && !GV.hasLocalLinkage() &&  in applyScopeRestrictions()
499           GV.hasName())  in applyScopeRestrictions()
500         ExternalSymbols.insert(std::make_pair(GV.getName(), GV.getLinkage()));  in applyScopeRestrictions()
502     for (auto &GV : *MergedModule)  in applyScopeRestrictions()
503       RecordLinkage(GV);  in applyScopeRestrictions()
504     for (auto &GV : MergedModule->globals())  in applyScopeRestrictions()  local
505       RecordLinkage(GV);  in applyScopeRestrictions()
506     for (auto &GV : MergedModule->aliases())  in applyScopeRestrictions()  local
507       RecordLinkage(GV);  in applyScopeRestrictions()
530   auto externalize = [this](GlobalValue &GV) {  in restoreLinkageForExternals()  argument
531     if (!GV.hasLocalLinkage() || !GV.hasName())  in restoreLinkageForExternals()
534     auto I = ExternalSymbols.find(GV.getName());  in restoreLinkageForExternals()
538     GV.setLinkage(I->second);  in restoreLinkageForExternals()