496   FunctionDecl *fn = dyn_cast<FunctionDecl>(CurContext);  in makeUnavailableInSystemHeader()
703   if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {  in ShouldRemoveFromUnused()
713     const FunctionDecl *DeclToCheck;  in ShouldRemoveFromUnused()
758   if (auto *FD = dyn_cast<FunctionDecl>(ND))  in isFunctionOrVarDeclExternC()
797     if (FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) {  in getUndefinedButUsed()
860       if (const auto *BaseD = dyn_cast<FunctionDecl>(VD)) {  in checkUndefinedButUsed()
865           const auto *Func = cast<FunctionDecl>(  in checkUndefinedButUsed()
874     } else if (auto *FD = dyn_cast<FunctionDecl>(VD)) {  in checkUndefinedButUsed()
971       if (const FunctionDecl *FD =  in IsRecordFullyDefined()
972           dyn_cast<FunctionDecl>((*I)->getFriendDecl()))  in IsRecordFullyDefined()
1049       if (auto Func = dyn_cast<FunctionDecl>(PII.first))  in ActOnEndOfTranslationUnitFragment()
1157         !(isa<FunctionDecl>(PrevDecl) || isa<VarDecl>(PrevDecl)))  in ActOnEndOfTranslationUnit()
1290       if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(*I)) {  in ActOnEndOfTranslationUnit()
1291         const FunctionDecl *DiagD;  in ActOnEndOfTranslationUnit()
1412 FunctionDecl *Sema::getCurFunctionDecl() {  in getCurFunctionDecl()
1414   return dyn_cast<FunctionDecl>(DC);  in getCurFunctionDecl()
1426   if (isa<ObjCMethodDecl>(DC) || isa<FunctionDecl>(DC))  in getCurFunctionOrMethodDecl()
1543   auto *FD = dyn_cast<FunctionDecl>(CurContext);  in hasUncompilableErrorOccurred()
1558 static void emitCallStackNotes(Sema &S, FunctionDecl *FD) {  in emitCallStackNotes()
1609   llvm::SmallVector<CanonicalDeclPtr<FunctionDecl>, 4> UsePath;
1639     if (auto *FD = dyn_cast<FunctionDecl>(D))  in visitUsedDecl()
1660   void checkFunc(SourceLocation Loc, FunctionDecl *FD) {  in checkFunc()
1662     FunctionDecl *Caller = UsePath.empty() ? nullptr : UsePath.back();  in checkFunc()
1691     if (auto *FD = dyn_cast<FunctionDecl>(D)) {  in checkRecordedDecl()
1700   void emitDeferredDiags(FunctionDecl *FD, bool ShowCallStack) {  in emitDeferredDiags()
1770                                                    FunctionDecl *Fn, Sema &S)  in SemaDiagnosticBuilder()
1816 Sema::targetDiag(SourceLocation Loc, unsigned DiagID, FunctionDecl *FD) {  in targetDiag()
1875   FunctionDecl *FD =  in checkDeviceDecl()
1876       isa<FunctionDecl>(C) ? cast<FunctionDecl>(C) : dyn_cast<FunctionDecl>(D);  in checkDeviceDecl()
2316       if (const FunctionDecl *OverloadDecl  in tryExprAsCall()
2317             = dyn_cast<FunctionDecl>((*it)->getUnderlyingDecl())) {  in tryExprAsCall()
2353     if (const FunctionDecl *Fun = dyn_cast<FunctionDecl>(DeclRef->getDecl())) {  in tryExprAsCall()
2429     const FunctionDecl *OverloadDecl = cast<FunctionDecl>(*It);  in notePlausibleOverloads()
2458     if (const auto *FD = dyn_cast<FunctionDecl>(ND))  in IsCPUDispatchCPUSpecificMultiVersion()