6005                                            NamedDecl *NewDecl,  in checkDLLAttributeRedeclaration()  argument
6008   if (OldDecl->isInvalidDecl() || NewDecl->isInvalidDecl())  in checkDLLAttributeRedeclaration()
6018   if (TemplateDecl *NewTD = dyn_cast<TemplateDecl>(NewDecl)) {  in checkDLLAttributeRedeclaration()
6019     NewDecl = NewTD->getTemplatedDecl();  in checkDLLAttributeRedeclaration()
6023   if (!OldDecl || !NewDecl)  in checkDLLAttributeRedeclaration()
6028   const DLLImportAttr *NewImportAttr = NewDecl->getAttr<DLLImportAttr>();  in checkDLLAttributeRedeclaration()
6029   const DLLExportAttr *NewExportAttr = NewDecl->getAttr<DLLExportAttr>();  in checkDLLAttributeRedeclaration()
6063     S.Diag(NewDecl->getLocation(), DiagID)  in checkDLLAttributeRedeclaration()
6064         << NewDecl  in checkDLLAttributeRedeclaration()
6068       NewDecl->setInvalidDecl();  in checkDLLAttributeRedeclaration()
6080   if (const auto *VD = dyn_cast<VarDecl>(NewDecl)) {  in checkDLLAttributeRedeclaration()
6086   } else if (const auto *FD = dyn_cast<FunctionDecl>(NewDecl)) {  in checkDLLAttributeRedeclaration()
6094       !NewDecl->isLocalExternDecl() && !IsQualifiedFriend) {  in checkDLLAttributeRedeclaration()
6096       S.Diag(NewDecl->getLocation(),  in checkDLLAttributeRedeclaration()
6098           << NewDecl;  in checkDLLAttributeRedeclaration()
6100       NewDecl->dropAttr<DLLImportAttr>();  in checkDLLAttributeRedeclaration()
6101       NewDecl->addAttr(::new (S.Context) DLLExportAttr(  in checkDLLAttributeRedeclaration()
6105       S.Diag(NewDecl->getLocation(),  in checkDLLAttributeRedeclaration()
6107           << NewDecl << OldImportAttr;  in checkDLLAttributeRedeclaration()
6111       NewDecl->dropAttr<DLLImportAttr>();  in checkDLLAttributeRedeclaration()
6117     NewDecl->dropAttr<DLLImportAttr>();  in checkDLLAttributeRedeclaration()
6118     S.Diag(NewDecl->getLocation(),  in checkDLLAttributeRedeclaration()
6120         << NewDecl << OldImportAttr;  in checkDLLAttributeRedeclaration()
6127   if (const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(NewDecl)) {  in checkDLLAttributeRedeclaration()
6134         NewDecl->addAttr(NewAttr);  in checkDLLAttributeRedeclaration()