472   FunctionDecl *fn = dyn_cast<FunctionDecl>(CurContext);  in makeUnavailableInSystemHeader()
658   if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {  in ShouldRemoveFromUnused()
668     const FunctionDecl *DeclToCheck;  in ShouldRemoveFromUnused()
713   if (auto *FD = dyn_cast<FunctionDecl>(ND))  in isFunctionOrVarDeclExternC()
752     if (FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) {  in getUndefinedButUsed()
816     } else if (auto *FD = dyn_cast<FunctionDecl>(VD)) {  in checkUndefinedButUsed()
913       if (const FunctionDecl *FD =  in IsRecordFullyDefined()
914           dyn_cast<FunctionDecl>((*I)->getFriendDecl()))  in IsRecordFullyDefined()
991       if (auto Func = dyn_cast<FunctionDecl>(PII.first))  in ActOnEndOfTranslationUnitFragment()
1099         !(isa<FunctionDecl>(PrevDecl) || isa<VarDecl>(PrevDecl)))  in ActOnEndOfTranslationUnit()
1232       if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(*I)) {  in ActOnEndOfTranslationUnit()
1233         const FunctionDecl *DiagD;  in ActOnEndOfTranslationUnit()
1354 FunctionDecl *Sema::getCurFunctionDecl() {  in getCurFunctionDecl()
1356   return dyn_cast<FunctionDecl>(DC);  in getCurFunctionDecl()
1368   if (isa<ObjCMethodDecl>(DC) || isa<FunctionDecl>(DC))  in getCurFunctionOrMethodDecl()
1485   auto *FD = dyn_cast<FunctionDecl>(CurContext);  in hasUncompilableErrorOccurred()
1500 static void emitCallStackNotes(Sema &S, FunctionDecl *FD) {  in emitCallStackNotes()
1551   llvm::SmallVector<CanonicalDeclPtr<FunctionDecl>, 4> UsePath;
1581     if (auto *FD = dyn_cast<FunctionDecl>(D))  in visitUsedDecl()
1602   void checkFunc(SourceLocation Loc, FunctionDecl *FD) {  in checkFunc()
1604     FunctionDecl *Caller = UsePath.empty() ? nullptr : UsePath.back();  in checkFunc()
1633     if (auto *FD = dyn_cast<FunctionDecl>(D)) {  in checkRecordedDecl()
1642   void emitDeferredDiags(FunctionDecl *FD, bool ShowCallStack) {  in emitDeferredDiags()
1712                                                    FunctionDecl *Fn, Sema &S)  in SemaDiagnosticBuilder()
1758 Sema::targetDiag(SourceLocation Loc, unsigned DiagID, FunctionDecl *FD) {  in targetDiag()
1817   FunctionDecl *FD =  in checkDeviceDecl()
1818       isa<FunctionDecl>(C) ? cast<FunctionDecl>(C) : dyn_cast<FunctionDecl>(D);  in checkDeviceDecl()
2246       if (const FunctionDecl *OverloadDecl  in tryExprAsCall()
2247             = dyn_cast<FunctionDecl>((*it)->getUnderlyingDecl())) {  in tryExprAsCall()
2283     if (const FunctionDecl *Fun = dyn_cast<FunctionDecl>(DeclRef->getDecl())) {  in tryExprAsCall()
2359     const FunctionDecl *OverloadDecl = cast<FunctionDecl>(*It);  in notePlausibleOverloads()
2388     if (const auto *FD = dyn_cast<FunctionDecl>(ND))  in IsCPUDispatchCPUSpecificMultiVersion()