10734     const FunctionDecl *OldFD, const FunctionDecl *NewFD,  in areMultiversionVariantFunctionsCompatible()  argument
10761   if (NoProtoDiagID.getDiagID() != 0 && OldFD &&  in areMultiversionVariantFunctionsCompatible()
10762       !OldFD->getType()->getAs<FunctionProtoType>()) {  in areMultiversionVariantFunctionsCompatible()
10763     Diag(OldFD->getLocation(), NoProtoDiagID);  in areMultiversionVariantFunctionsCompatible()
10812   if (OldFD) {  in areMultiversionVariantFunctionsCompatible()
10813     QualType OldQType = Context.getCanonicalType(OldFD->getType());  in areMultiversionVariantFunctionsCompatible()
10826     if (OldFD->getConstexprKind() != NewFD->getConstexprKind())  in areMultiversionVariantFunctionsCompatible()
10829     if (OldFD->isInlineSpecified() != NewFD->isInlineSpecified())  in areMultiversionVariantFunctionsCompatible()
10832     if (OldFD->getFormalLinkage() != NewFD->getFormalLinkage())  in areMultiversionVariantFunctionsCompatible()
10835     if (!CLinkageMayDiffer && OldFD->isExternC() != NewFD->isExternC())  in areMultiversionVariantFunctionsCompatible()
10839             OldFD->getType()->getAs<FunctionProtoType>(), OldFD->getLocation(),  in areMultiversionVariantFunctionsCompatible()
10846 static bool CheckMultiVersionAdditionalRules(Sema &S, const FunctionDecl *OldFD,  in CheckMultiVersionAdditionalRules()  argument
10852     if (OldFD)  in CheckMultiVersionAdditionalRules()
10853       S.Diag(OldFD->getLocation(), diag::note_previous_declaration);  in CheckMultiVersionAdditionalRules()
10861   if (CausesMV && OldFD &&  in CheckMultiVersionAdditionalRules()
10862       checkNonMultiVersionCompatAttributes(S, OldFD, NewFD, MVKind))  in CheckMultiVersionAdditionalRules()
10869   if (OldFD && CausesMV && OldFD->isUsed(false))  in CheckMultiVersionAdditionalRules()
10873       OldFD, NewFD, S.PDiag(diag::err_multiversion_noproto),  in CheckMultiVersionAdditionalRules()
10927     Sema &S, FunctionDecl *OldFD, FunctionDecl *NewFD, const TargetAttr *NewTA,  in CheckTargetCausesMultiVersioning()  argument
10929   const auto *OldTA = OldFD->getAttr<TargetAttr>();  in CheckTargetCausesMultiVersioning()
10941   if (CheckMultiVersionAdditionalRules(S, OldFD, NewFD, true,  in CheckTargetCausesMultiVersioning()
10953   if (!OldFD->isMultiVersion() && !OldTA && NewTA->isDefaultVersion()) {  in CheckTargetCausesMultiVersioning()
10955     OldDecl = OldFD;  in CheckTargetCausesMultiVersioning()
10956     OldFD->setIsMultiVersion();  in CheckTargetCausesMultiVersioning()
10961   if (CheckMultiVersionValue(S, OldFD)) {  in CheckTargetCausesMultiVersioning()
10971     S.Diag(OldFD->getLocation(), diag::note_previous_declaration);  in CheckTargetCausesMultiVersioning()
10976   for (const auto *FD : OldFD->redecls()) {  in CheckTargetCausesMultiVersioning()
10990   OldFD->setIsMultiVersion();  in CheckTargetCausesMultiVersioning()
11013     Sema &S, FunctionDecl *OldFD, FunctionDecl *NewFD,  in CheckMultiVersionAdditionalDecl()  argument
11019   MultiVersionKind OldMVKind = OldFD->getMultiVersionKind();  in CheckMultiVersionAdditionalDecl()
11023     S.Diag(OldFD->getLocation(), diag::note_previous_declaration);  in CheckMultiVersionAdditionalDecl()
11161   if (CheckMultiVersionAdditionalRules(S, OldFD, NewFD,  in CheckMultiVersionAdditionalDecl()
11162                                        !OldFD->isMultiVersion(), NewMVKind)) {  in CheckMultiVersionAdditionalDecl()
11168   if (!OldFD->isMultiVersion()) {  in CheckMultiVersionAdditionalDecl()
11169     OldFD->setIsMultiVersion();  in CheckMultiVersionAdditionalDecl()
11172     OldDecl = OldFD;  in CheckMultiVersionAdditionalDecl()
11220   FunctionDecl *OldFD = OldDecl->getAsFunction();  in CheckMultiVersionFunction()  local
11222   if (!OldFD->isMultiVersion() && MVKind == MultiVersionKind::None)  in CheckMultiVersionFunction()
11227   if (OldFD->isMultiVersion() && MVKind == MultiVersionKind::None &&  in CheckMultiVersionFunction()
11228       OldFD->getMultiVersionKind() != MultiVersionKind::TargetClones) {  in CheckMultiVersionFunction()
11230         << (OldFD->getMultiVersionKind() != MultiVersionKind::Target);  in CheckMultiVersionFunction()
11235   if (!OldFD->isMultiVersion()) {  in CheckMultiVersionFunction()
11238       return CheckTargetCausesMultiVersioning(S, OldFD, NewFD, NewTA,  in CheckMultiVersionFunction()
11241       if (OldFD->isUsed(false)) {  in CheckMultiVersionFunction()
11245       OldFD->setIsMultiVersion();  in CheckMultiVersionFunction()
11257   return CheckMultiVersionAdditionalDecl(S, OldFD, NewFD, MVKind, NewTA,  in CheckMultiVersionFunction()
11411       auto *OldFD = OldTemplateDecl->getTemplatedDecl();  in CheckFunctionDeclaration()  local
11421       NewFD->setPreviousDeclaration(OldFD);  in CheckFunctionDeclaration()
11435         if (OldFD->isDeleted()) {  in CheckFunctionDeclaration()
11437           assert(OldFD->getCanonicalDecl() == OldFD);  in CheckFunctionDeclaration()
11439           OldFD->setDeletedAsWritten(false);  in CheckFunctionDeclaration()
11445         auto *OldFD = cast<FunctionDecl>(OldDecl);  in CheckFunctionDeclaration()  local
11447         NewFD->setPreviousDeclaration(OldFD);  in CheckFunctionDeclaration()
11449           NewFD->setAccess(OldFD->getAccess());  in CheckFunctionDeclaration()