574   FunctionDecl *fn = dyn_cast<FunctionDecl>(CurContext);  in makeUnavailableInSystemHeader()
672   FunctionDecl *FD = getCurFunctionDecl();  in diagnoseZeroToNullptrConversion()
801   if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {  in ShouldRemoveFromUnused()
811     const FunctionDecl *DeclToCheck;  in ShouldRemoveFromUnused()
856   if (const auto *FD = dyn_cast<FunctionDecl>(ND))  in isFunctionOrVarDeclExternC()
895     if (const auto *FD = dyn_cast<FunctionDecl>(ND)) {  in getUndefinedButUsed()
959       if (const auto *BaseD = dyn_cast<FunctionDecl>(VD)) {  in checkUndefinedButUsed()
964           const auto *Func = cast<FunctionDecl>(  in checkUndefinedButUsed()
973     } else if (auto *FD = dyn_cast<FunctionDecl>(VD)) {  in checkUndefinedButUsed()
1068       if (const FunctionDecl *FD =  in IsRecordFullyDefined()
1069           dyn_cast<FunctionDecl>((*I)->getFriendDecl()))  in IsRecordFullyDefined()
1137       if (auto Func = dyn_cast<FunctionDecl>(PII.first))  in ActOnEndOfTranslationUnitFragment()
1243         !(isa<FunctionDecl>(PrevDecl) || isa<VarDecl>(PrevDecl)))  in ActOnEndOfTranslationUnit()
1327       if (auto *FD = dyn_cast<FunctionDecl>(D)) {  in ActOnEndOfTranslationUnit()
1415       if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(*I)) {  in ActOnEndOfTranslationUnit()
1416         const FunctionDecl *DiagD;  in ActOnEndOfTranslationUnit()
1547 FunctionDecl *Sema::getCurFunctionDecl(bool AllowLambda) const {  in getCurFunctionDecl()
1549   return dyn_cast<FunctionDecl>(DC);  in getCurFunctionDecl()
1561   if (isa<ObjCMethodDecl>(DC) || isa<FunctionDecl>(DC))  in getCurFunctionOrMethodDecl()
1673   auto *FD = dyn_cast<FunctionDecl>(CurContext);  in hasUncompilableErrorOccurred()
1688 static void emitCallStackNotes(Sema &S, const FunctionDecl *FD) {  in emitCallStackNotes()
1739   llvm::SmallVector<CanonicalDeclPtr<FunctionDecl>, 4> UsePath;
1769     if (auto *FD = dyn_cast<FunctionDecl>(D))  in visitUsedDecl()
1790   void checkFunc(SourceLocation Loc, FunctionDecl *FD) {  in checkFunc()
1792     FunctionDecl *Caller = UsePath.empty() ? nullptr : UsePath.back();  in checkFunc()
1821     if (auto *FD = dyn_cast<FunctionDecl>(D)) {  in checkRecordedDecl()
1830   void emitDeferredDiags(FunctionDecl *FD, bool ShowCallStack) {  in emitDeferredDiags()
1900                                                    const FunctionDecl *Fn,  in SemaDiagnosticBuilder()
1947 Sema::targetDiag(SourceLocation Loc, unsigned DiagID, const FunctionDecl *FD) {  in targetDiag()
1993   const FunctionDecl *FD = isa<FunctionDecl>(C)  in checkTypeSupport()
1994                                ? cast<FunctionDecl>(C)  in checkTypeSupport()
1995                                : dyn_cast_or_null<FunctionDecl>(D);  in checkTypeSupport()
2503       if (const FunctionDecl *OverloadDecl  in tryExprAsCall()
2504             = dyn_cast<FunctionDecl>((*it)->getUnderlyingDecl())) {  in tryExprAsCall()
2540     if (const auto *Fun = dyn_cast<FunctionDecl>(DeclRef->getDecl())) {  in tryExprAsCall()
2618     const auto *OverloadDecl = cast<FunctionDecl>(*It);  in notePlausibleOverloads()
2647     if (const auto *FD = dyn_cast<FunctionDecl>(ND))  in IsCPUDispatchCPUSpecificMultiVersion()
2757       return isa<FunctionDecl>(ND) || isa<FunctionTemplateDecl>(ND) ||  in isDeclaratorFunctionLike()
2858     const FunctionDecl &OldFunction, const FunctionEffectsRef &OldFX,  in shouldDiagnoseRedeclaration()
2859     const FunctionDecl &NewFunction, const FunctionEffectsRef &NewFX) const {  in shouldDiagnoseRedeclaration()