450   auto mayPreserveGlobal = [&](GlobalValue &GV) {  in preserveDiscardableGVs()  argument
451     if (!GV.isDiscardableIfUnused() || GV.isDeclaration() ||  in preserveDiscardableGVs()
452         !mustPreserveGV(GV))  in preserveDiscardableGVs()
454     if (GV.hasAvailableExternallyLinkage())  in preserveDiscardableGVs()
457            GV.getName() + "'").str());  in preserveDiscardableGVs()
458     if (GV.hasInternalLinkage())  in preserveDiscardableGVs()
460                    GV.getName() + "'").str());  in preserveDiscardableGVs()
461     Used.push_back(&GV);  in preserveDiscardableGVs()
463   for (auto &GV : TheModule)  in preserveDiscardableGVs()  local
464     mayPreserveGlobal(GV);  in preserveDiscardableGVs()
465   for (auto &GV : TheModule.globals())  in preserveDiscardableGVs()  local
466     mayPreserveGlobal(GV);  in preserveDiscardableGVs()
467   for (auto &GV : TheModule.aliases())  in preserveDiscardableGVs()  local
468     mayPreserveGlobal(GV);  in preserveDiscardableGVs()
484   auto mustPreserveGV = [&](const GlobalValue &GV) -> bool {  in applyScopeRestrictions()  argument
486     if (!GV.hasName())  in applyScopeRestrictions()
493     MangledName.reserve(GV.getName().size() + 1);  in applyScopeRestrictions()
494     Mang.getNameWithPrefix(MangledName, &GV, /*CannotUsePrivateLabel=*/false);  in applyScopeRestrictions()
508     auto RecordLinkage = [&](const GlobalValue &GV) {  in applyScopeRestrictions()  argument
509       if (!GV.hasAvailableExternallyLinkage() && !GV.hasLocalLinkage() &&  in applyScopeRestrictions()
510           GV.hasName())  in applyScopeRestrictions()
511         ExternalSymbols.insert(std::make_pair(GV.getName(), GV.getLinkage()));  in applyScopeRestrictions()
513     for (auto &GV : *MergedModule)  in applyScopeRestrictions()
514       RecordLinkage(GV);  in applyScopeRestrictions()
515     for (auto &GV : MergedModule->globals())  in applyScopeRestrictions()  local
516       RecordLinkage(GV);  in applyScopeRestrictions()
517     for (auto &GV : MergedModule->aliases())  in applyScopeRestrictions()  local
518       RecordLinkage(GV);  in applyScopeRestrictions()
541   auto externalize = [this](GlobalValue &GV) {  in restoreLinkageForExternals()  argument
542     if (!GV.hasLocalLinkage() || !GV.hasName())  in restoreLinkageForExternals()
545     auto I = ExternalSymbols.find(GV.getName());  in restoreLinkageForExternals()
549     GV.setLinkage(I->second);  in restoreLinkageForExternals()