diff options
55 files changed, 171 insertions, 128 deletions
diff --git a/include/clang/Basic/LangOptions.h b/include/clang/Basic/LangOptions.h index 7eda0aa3fd..6d4dc5b8dc 100644 --- a/include/clang/Basic/LangOptions.h +++ b/include/clang/Basic/LangOptions.h @@ -131,7 +131,7 @@ public: // FIXME: This is just a temporary option, for testing purposes. unsigned NoBitFieldTypeAlign : 1; unsigned ObjCAutoRefCount : 1; // Objective C automated reference counting - unsigned ObjCNoAutoRefCountRuntime : 1; // ARC w/o extra runtime support + unsigned ObjCRuntimeHasWeak : 1; // The ARC runtime supports __weak unsigned ObjCInferRelatedReturnType : 1; // Infer Objective-C related return // types unsigned FakeAddressSpaceMap : 1; // Use a fake address space map, for @@ -176,7 +176,8 @@ public: Trigraphs = BCPLComment = Bool = DollarIdents = AsmPreprocessor = 0; GNUMode = GNUKeywords = ImplicitInt = Digraphs = 0; HexFloats = 0; - ObjCAutoRefCount = ObjCNoAutoRefCountRuntime = 0; + ObjCAutoRefCount = 0; + ObjCRuntimeHasWeak = 0; ObjCInferRelatedReturnType = 0; GC = ObjC1 = ObjC2 = ObjCNonFragileABI = ObjCNonFragileABI2 = 0; AppleKext = 0; diff --git a/include/clang/Driver/CC1Options.td b/include/clang/Driver/CC1Options.td index 653f346b9e..aab0213b95 100644 --- a/include/clang/Driver/CC1Options.td +++ b/include/clang/Driver/CC1Options.td @@ -494,10 +494,12 @@ def fobjc_arc : Flag<"-fobjc-arc">, HelpText<"Synthesize retain and release calls for Objective-C pointers">; def fobjc_arc_cxxlib_EQ : Joined<"-fobjc-arc-cxxlib=">, HelpText<"Objective-C++ Automatic Reference Counting standard library kind">; -def fobjc_no_arc_runtime : Flag<"-fobjc-no-arc-runtime">, - HelpText<"Implement -fobjc-arc without any extra runtime support">; def fobjc_arc_exceptions : Flag<"-fobjc-arc-exceptions">, HelpText<"Use EH-safe code when synthesizing retains and releases in -fobjc-arc">; +def fobjc_runtime_has_arc : Flag<"-fobjc-runtime-has-arc">, + HelpText<"The target Objective-C runtime provides ARC entrypoints">; +def fobjc_runtime_has_weak : Flag<"-fobjc-runtime-has-weak">, + HelpText<"The target Objective-C runtime supports ARC weak operations">; def fobjc_gc : Flag<"-fobjc-gc">, HelpText<"Enable Objective-C garbage collection">; def fobjc_gc_only : Flag<"-fobjc-gc-only">, diff --git a/include/clang/Driver/ToolChain.h b/include/clang/Driver/ToolChain.h index a570beaf79..4836d3ffac 100644 --- a/include/clang/Driver/ToolChain.h +++ b/include/clang/Driver/ToolChain.h @@ -26,6 +26,7 @@ namespace driver { class HostInfo; class InputArgList; class JobAction; + class ObjCRuntime; class Tool; /// ToolChain - Access to tools for a single platform. @@ -166,9 +167,6 @@ public: /// UseSjLjExceptions - Does this tool chain use SjLj exceptions. virtual bool UseSjLjExceptions() const { return false; } - /// HasARCRuntime - Does this tool chain provide a specialized ARC runtime. - virtual bool HasARCRuntime() const { return true; } - /// ComputeLLVMTriple - Return the LLVM target triple to use, after taking /// command line arguments into account. virtual std::string ComputeLLVMTriple(const ArgList &Args) const; @@ -180,6 +178,12 @@ public: /// Clang. virtual std::string ComputeEffectiveClangTriple(const ArgList &Args) const; + /// configureObjCRuntime - Configure the known properties of the + /// Objective-C runtime for this platform. + /// + /// FIXME: this doesn't really belong here. + virtual void configureObjCRuntime(ObjCRuntime &runtime) const; + // GetCXXStdlibType - Determine the C++ standard library type to use with the // given compilation arguments. virtual CXXStdlibType GetCXXStdlibType(const ArgList &Args) const; diff --git a/include/clang/Frontend/CodeGenOptions.h b/include/clang/Frontend/CodeGenOptions.h index 2191980b95..d415d0a889 100644 --- a/include/clang/Frontend/CodeGenOptions.h +++ b/include/clang/Frontend/CodeGenOptions.h @@ -76,6 +76,7 @@ public: unsigned NoNaNsFPMath : 1; /// Assume FP arguments, results not NaN. unsigned NoZeroInitializedInBSS : 1; /// -fno-zero-initialized-in-bss unsigned ObjCDispatchMethod : 2; /// Method of Objective-C dispatch to use. + unsigned ObjCRuntimeHasARC : 1; /// The target runtime supports ARC natively unsigned OmitLeafFramePointer : 1; /// Set when -momit-leaf-frame-pointer is /// enabled. unsigned OptimizationLevel : 3; /// The -O[0-4] option specified. diff --git a/lib/ARCMigrate/ARCMT.cpp b/lib/ARCMigrate/ARCMT.cpp index 7f3479604e..0678a255d7 100644 --- a/lib/ARCMigrate/ARCMT.cpp +++ b/lib/ARCMigrate/ARCMT.cpp @@ -189,7 +189,7 @@ CompilerInvocation *createInvocationForMigration(CompilerInvocation &origCI) { CInvok->getDiagnosticOpts().ErrorLimit = 0; CInvok->getDiagnosticOpts().Warnings.push_back( "error=arc-unsafe-retained-assign"); - CInvok->getLangOpts().ObjCNoAutoRefCountRuntime = !HasARCRuntime(origCI); + CInvok->getLangOpts().ObjCRuntimeHasWeak = HasARCRuntime(origCI); return CInvok.take(); } diff --git a/lib/ARCMigrate/TransBlockObjCVariable.cpp b/lib/ARCMigrate/TransBlockObjCVariable.cpp index ba556277cc..97695cbccf 100644 --- a/lib/ARCMigrate/TransBlockObjCVariable.cpp +++ b/lib/ARCMigrate/TransBlockObjCVariable.cpp @@ -98,12 +98,12 @@ public: BlocksAttr *attr = var->getAttr<BlocksAttr>(); if(!attr) continue; - bool hasARCRuntime = !Pass.Ctx.getLangOptions().ObjCNoAutoRefCountRuntime; + bool hasWeak = Pass.Ctx.getLangOptions().ObjCRuntimeHasWeak; SourceManager &SM = Pass.Ctx.getSourceManager(); Transaction Trans(Pass.TA); Pass.TA.replaceText(SM.getInstantiationLoc(attr->getLocation()), "__block", - hasARCRuntime ? "__weak" : "__unsafe_unretained"); + hasWeak ? "__weak" : "__unsafe_unretained"); } } diff --git a/lib/ARCMigrate/TransProperties.cpp b/lib/ARCMigrate/TransProperties.cpp index e0009ac241..0efc4c0fad 100644 --- a/lib/ARCMigrate/TransProperties.cpp +++ b/lib/ARCMigrate/TransProperties.cpp @@ -112,7 +112,7 @@ public: } void applyWeak(PropData &prop) { - assert(!Pass.Ctx.getLangOptions().ObjCNoAutoRefCountRuntime); + assert(Pass.Ctx.getLangOptions().ObjCRuntimeHasWeak); Transaction Trans(Pass.TA); Pass.TA.insert(prop.IvarD->getLocation(), "__weak "); @@ -157,7 +157,7 @@ public: // There is a "error: existing ivar for assign property must be // __unsafe_unretained"; fix it. - if (Pass.Ctx.getLangOptions().ObjCNoAutoRefCountRuntime) { + if (!Pass.Ctx.getLangOptions().ObjCRuntimeHasWeak) { // We will just add __unsafe_unretained to the ivar. Transaction Trans(Pass.TA); Pass.TA.insert(ivarD->getLocation(), "__unsafe_unretained "); diff --git a/lib/CodeGen/CGObjC.cpp b/lib/CodeGen/CGObjC.cpp index db9873b817..d8ce1f4a75 100644 --- a/lib/CodeGen/CGObjC.cpp +++ b/lib/CodeGen/CGObjC.cpp @@ -1311,7 +1311,7 @@ static llvm::Constant *createARCRuntimeFunction(CodeGenModule &CGM, // In -fobjc-no-arc-runtime, emit weak references to the runtime // support library. - if (CGM.getLangOptions().ObjCNoAutoRefCountRuntime) + if (!CGM.getCodeGenOpts().ObjCRuntimeHasARC) if (llvm::Function *f = dyn_cast<llvm::Function>(fn)) f->setLinkage(llvm::Function::ExternalWeakLinkage); @@ -2457,13 +2457,7 @@ void CodeGenFunction::EmitObjCAutoreleasePoolStmt( // Keep track of the current cleanup stack depth. RunCleanupsScope Scope(*this); - const llvm::Triple Triple = getContext().Target.getTriple(); - if (CGM.getLangOptions().ObjCAutoRefCount || - (CGM.isTargetDarwin() && - ((Triple.getArch() == llvm::Triple::x86_64 && - !Triple.isMacOSXVersionLT(10,7,0)) - || (Triple.getEnvironmentName() == "iphoneos" && - !Triple.isOSVersionLT(5,0))))) { + if (CGM.getCodeGenOpts().ObjCRuntimeHasARC) { llvm::Value *token = EmitObjCAutoreleasePoolPush(); EHStack.pushCleanup<CallObjCAutoreleasePoolObject>(NormalCleanup, token); } else { diff --git a/lib/Driver/Compilation.cpp b/lib/Driver/Compilation.cpp index 2657faa0d3..e15e40295c 100644 --- a/lib/Driver/Compilation.cpp +++ b/lib/Driver/Compilation.cpp @@ -13,6 +13,7 @@ #include "clang/Driver/ArgList.h" #include "clang/Driver/Driver.h" #include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/ObjCRuntime.h" #include "clang/Driver/Options.h" #include "clang/Driver/ToolChain.h" diff --git a/lib/Driver/ToolChain.cpp b/lib/Driver/ToolChain.cpp index cbbbc5c4de..0cce517549 100644 --- a/lib/Driver/ToolChain.cpp +++ b/lib/Driver/ToolChain.cpp @@ -15,7 +15,9 @@ #include "clang/Driver/Driver.h" #include "clang/Driver/DriverDiagnostic.h" #include "clang/Driver/HostInfo.h" +#include "clang/Driver/ObjCRuntime.h" #include "clang/Driver/Options.h" +#include "llvm/Support/ErrorHandling.h" using namespace clang::driver; @@ -47,6 +49,23 @@ bool ToolChain::HasNativeLLVMSupport() const { return false; } +void ToolChain::configureObjCRuntime(ObjCRuntime &runtime) const { + switch (runtime.getKind()) { + case ObjCRuntime::NeXT: + // Assume a minimal NeXT runtime. + runtime.HasARC = false; + runtime.HasWeak = false; + return; + + case ObjCRuntime::GNU: + // Assume a maximal GNU runtime. + runtime.HasARC = true; + runtime.HasWeak = true; + return; + } + llvm_unreachable("invalid runtime kind!"); +} + /// getARMTargetCPU - Get the (LLVM) name of the ARM cpu we are targeting. // // FIXME: tblgen this. diff --git a/lib/Driver/ToolChains.cpp b/lib/Driver/ToolChains.cpp index b4501acbb1..68ebc1b6b3 100644 --- a/lib/Driver/ToolChains.cpp +++ b/lib/Driver/ToolChains.cpp @@ -19,6 +19,7 @@ #include "clang/Driver/Driver.h" #include "clang/Driver/DriverDiagnostic.h" #include "clang/Driver/HostInfo.h" +#include "clang/Driver/ObjCRuntime.h" #include "clang/Driver/OptTable.h" #include "clang/Driver/Option.h" #include "clang/Driver/Options.h" @@ -74,8 +75,7 @@ bool Darwin::HasNativeLLVMSupport() const { return true; } -/// Darwin provides an ARC runtime starting in MacOS X 10.7 and iOS 5.0. -bool Darwin::HasARCRuntime() const { +bool Darwin::hasARCRuntime() const { // FIXME: Remove this once there is a proper way to detect an ARC runtime // for the simulator. switch (ARCRuntimeForSimulator) { @@ -93,6 +93,14 @@ bool Darwin::HasARCRuntime() const { return !isMacosxVersionLT(10, 7); } +/// Darwin provides an ARC runtime starting in MacOS X 10.7 and iOS 5.0. +void Darwin::configureObjCRuntime(ObjCRuntime &runtime) const { + if (runtime.getKind() != ObjCRuntime::NeXT) + return ToolChain::configureObjCRuntime(runtime); + + runtime.HasARC = runtime.HasWeak = hasARCRuntime(); +} + // FIXME: Can we tablegen this? static const char *GetArmArchForMArch(llvm::StringRef Value) { if (Value == "armv6k") diff --git a/lib/Driver/ToolChains.h b/lib/Driver/ToolChains.h index 9ed0dc2ef8..d68016b3a2 100644 --- a/lib/Driver/ToolChains.h +++ b/lib/Driver/ToolChains.h @@ -80,6 +80,8 @@ private: /// initialized. std::string MacosxVersionMin; + bool hasARCRuntime() const; + private: void AddDeploymentTarget(DerivedArgList &Args) const; @@ -184,7 +186,7 @@ public: virtual bool HasNativeLLVMSupport() const; - virtual bool HasARCRuntime() const; + virtual void configureObjCRuntime(ObjCRuntime &runtime) const; virtual DerivedArgList *TranslateArgs(const DerivedArgList &Args, const char *BoundArch) const; diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp index 4e70c5c372..d0fd914bf0 100644 --- a/lib/Driver/Tools.cpp +++ b/lib/Driver/Tools.cpp @@ -17,6 +17,7 @@ #include "clang/Driver/Compilation.h" #include "clang/Driver/Job.h" #include "clang/Driver/HostInfo.h" +#include "clang/Driver/ObjCRuntime.h" #include "clang/Driver/Option.h" #include "clang/Driver/Options.h" #include "clang/Driver/ToolChain.h" @@ -1600,47 +1601,6 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA, options::OPT_fno_lax_vector_conversions)) CmdArgs.push_back("-fno-lax-vector-conversions"); - // Allow -fno-objc-arr to trump -fobjc-arr/-fobjc-arc. - // NOTE: This logic is duplicated in ToolChains.cpp. - bool ARC = isObjCAutoRefCount(Args); - if (ARC) { - CmdArgs.push_back("-fobjc-arc"); - - // Certain deployment targets don't have runtime support. - if (!getToolChain().HasARCRuntime()) - CmdArgs.push_back("-fobjc-no-arc-runtime"); - - // Allow the user to enable full exceptions code emission. - // We define off for Objective-CC, on for Objective-C++. - if (Args.hasFlag(options::OPT_fobjc_arc_exceptions, - options::OPT_fno_objc_arc_exceptions, - /*default*/ types::isCXX(InputType))) - CmdArgs.push_back("-fobjc-arc-exceptions"); - } - - // -fobjc-infer-related-result-type is the default, except in the Objective-C - // rewriter. - if (IsRewriter) - CmdArgs.push_back("-fno-objc-infer-related-result-type"); - - // Handle -fobjc-gc and -fobjc-gc-only. They are exclusive, and -fobjc-gc-only - // takes precedence. - const Arg *GCArg = Args.getLastArg(options::OPT_fobjc_gc_only); - if (!GCArg) - GCArg = Args.getLastArg(options::OPT_fobjc_gc); - if (GCArg) { - if (ARC) { - D.Diag(clang::diag::err_drv_objc_gc_arr) - << GCArg->getAsString(Args); - } else if (getToolChain().SupportsObjCGC()) { - GCArg->render(Args, CmdArgs); - } else { - // FIXME: We should move this to a hard error. - D.Diag(clang::diag::warn_drv_objc_gc_unsupported) - << GCArg->getAsString(Args); - } - } - if (Args.getLastArg(options::OPT_fapple_kext)) CmdArgs.push_back("-fapple-kext"); @@ -1805,17 +1765,23 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA, false)) CmdArgs.push_back("-fgnu89-inline"); - // -fnext-runtime defaults to on Darwin and when rewriting Objective-C, and is - // -the -cc1 default. - bool NeXTRuntimeIsDefault = - IsRewriter || getToolChain().getTriple().getOS() == llvm::Triple::Darwin; - if (!Args.hasFlag(options::OPT_fnext_runtime, options::OPT_fgnu_runtime, - NeXTRuntimeIsDefault)) - CmdArgs.push_back("-fgnu-runtime"); - // -fobjc-nonfragile-abi=0 is default. + ObjCRuntime objCRuntime; unsigned objcABIVersion = 0; if (types::isObjC(InputType)) { + bool NeXTRuntimeIsDefault + = (IsRewriter || getToolChain().getTriple().isOSDarwin()); + if (Args.hasFlag(options::OPT_fnext_runtime, options::OPT_fgnu_runtime, + NeXTRuntimeIsDefault)) + objCRuntime.setKind(ObjCRuntime::NeXT); + else + objCRuntime.setKind(ObjCRuntime::GNU); + getToolChain().configureObjCRuntime(objCRuntime); + if (objCRuntime.HasARC) + CmdArgs.push_back("-fobjc-runtime-has-arc"); + if (objCRuntime.HasWeak) + CmdArgs.push_back("-fobjc-runtime-has-weak"); + // Compute the Objective-C ABI "version" to use. Version numbers are // slightly confusing for historical reasons: // 1 - Traditional "fragile" ABI @@ -1890,6 +1856,43 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA, #endif } + // Allow -fno-objc-arr to trump -fobjc-arr/-fobjc-arc. + // NOTE: This logic is duplicated in ToolChains.cpp. + bool ARC = isObjCAutoRefCount(Args); + if (ARC) { + CmdArgs.push_back("-fobjc-arc"); + + // Allow the user to enable full exceptions code emission. + // We define off for Objective-CC, on for Objective-C++. + if (Args.hasFlag(options::OPT_fobjc_arc_exceptions, + options::OPT_fno_objc_arc_exceptions, + /*default*/ types::isCXX(InputType))) + CmdArgs.push_back("-fobjc-arc-exceptions"); + } + + // -fobjc-infer-related-result-type is the default, except in the Objective-C + // rewriter. + if (IsRewriter) + CmdArgs.push_back("-fno-objc-infer-related-result-type"); + + // Handle -fobjc-gc and -fobjc-gc-only. They are exclusive, and -fobjc-gc-only + // takes precedence. + const Arg *GCArg = Args.getLastArg(options::OPT_fobjc_gc_only); + if (!GCArg) + GCArg = Args.getLastArg(options::OPT_fobjc_gc); + if (GCArg) { + if (ARC) { + D.Diag(clang::diag::err_drv_objc_gc_arr) + << GCArg->getAsString(Args); + } else if (getToolChain().SupportsObjCGC()) { + GCArg->render(Args, CmdArgs); + } else { + // FIXME: We should move this to a hard error. + D.Diag(clang::diag::warn_drv_objc_gc_unsupported) + << GCArg->getAsString(Args); + } + } + // Add exception args. addExceptionArgs(Args, InputType, getToolChain().getTriple(), KernelOrKext, IsRewriter, objcABIVersion, CmdArgs); @@ -3237,8 +3240,12 @@ void darwin::Link::ConstructJob(Compilation &C, const JobAction &JA, // In ARC, if we don't have runtime support, link in the runtime // stubs. We have to do this *before* adding any of the normal // linker inputs so that its initializer gets run first. - if (!getDarwinToolChain().HasARCRuntime() && isObjCAutoRefCount(Args)) - getDarwinToolChain().AddLinkARCArgs(Args, CmdArgs); + if (isObjCAutoRefCount(Args)) { + ObjCRuntime runtime; + getDarwinToolChain().configureObjCRuntime(runtime); + if (!runtime.HasARC) + getDarwinToolChain().AddLinkARCArgs(Args, CmdArgs); + } AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs); diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp index 12e51a61e1..31c86432b7 100644 --- a/lib/Frontend/CompilerInvocation.cpp +++ b/lib/Frontend/CompilerInvocation.cpp @@ -123,6 +123,8 @@ static void CodeGenOptsToArgs(const CodeGenOptions &Opts, Res.push_back("-dwarf-debug-flags"); Res.push_back(Opts.DwarfDebugFlags); } + if (Opts.ObjCRuntimeHasARC) + Res.push_back("-fobjc-runtime-has-arc"); if (Opts.EmitGcovArcs) Res.push_back("-femit-coverage-data"); if (Opts.EmitGcovNotes) @@ -690,8 +692,8 @@ static void LangOptsToArgs(const LangOptions &Opts, } if (Opts.ObjCAutoRefCount) Res.push_back("-fobjc-arc"); - if (Opts.ObjCNoAutoRefCountRuntime) - Res.push_back("-fobjc-no-arc-runtime"); + if (Opts.ObjCRuntimeHasWeak) + Res.push_back("-fobjc-runtime-has-weak"); if (!Opts.ObjCInferRelatedResultType) Res.push_back("-fno-objc-infer-related-result-type"); @@ -976,6 +978,7 @@ static void ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); + Opts.ObjCRuntimeHasARC = Args.hasArg(OPT_fobjc_runtime_has_arc); Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); Opts.CodeModel = Args.getLastArgValue(OPT_mcode_model); @@ -1532,10 +1535,11 @@ static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, Opts.ObjCAutoRefCount = 1; if (!Args.hasArg(OPT_fobjc_nonfragile_abi)) Diags.Report(diag::err_arc_nonfragile_abi); - if (Args.hasArg(OPT_fobjc_no_arc_runtime)) - Opts.ObjCNoAutoRefCountRuntime = 1; } + if (Args.hasArg(OPT_fobjc_runtime_has_weak)) + Opts.ObjCRuntimeHasWeak = 1; + if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) Opts.ObjCInferRelatedResultType = 0; } diff --git a/lib/Frontend/InitPreprocessor.cpp b/lib/Frontend/InitPreprocessor.cpp index b07fb4395f..9428cd5de0 100644 --- a/lib/Frontend/InitPreprocessor.cpp +++ b/lib/Frontend/InitPreprocessor.cpp @@ -250,7 +250,7 @@ static void AddObjCXXARCLibcxxDefines(const LangOptions &LangOpts, << "}\n" << "\n"; - if (!LangOpts.ObjCNoAutoRefCountRuntime) { + if (LangOpts.ObjCRuntimeHasWeak) { Out << "template <class _Tp>\n" << "inline __attribute__ ((__visibility__(\"hidden\")," << "__always_inline__))\n" @@ -318,7 +318,7 @@ static void AddObjCXXARCLibstdcxxDefines(const LangOptions &LangOpts, << "};\n" << "\n"; - if (!LangOpts.ObjCNoAutoRefCountRuntime) { + if (LangOpts.ObjCRuntimeHasWeak) { Out << "template<typename _Tp>\n" << "struct __is_scalar<__attribute__((objc_ownership(weak))) _Tp> {\n" << " enum { __value = 0 };\n" diff --git a/lib/Lex/PPMacroExpansion.cpp b/lib/Lex/PPMacroExpansion.cpp index d7c4defb36..f1d03713a9 100644 --- a/lib/Lex/PPMacroExpansion.cpp +++ b/lib/Lex/PPMacroExpansion.cpp @@ -596,7 +596,7 @@ static bool HasFeature(const Preprocessor &PP, const IdentifierInfo *II) { .Case("objc_arr", LangOpts.ObjCAutoRefCount) // FIXME: REMOVE? .Case("objc_arc", LangOpts.ObjCAutoRefCount) .Case("objc_arc_weak", LangOpts.ObjCAutoRefCount && - !LangOpts.ObjCNoAutoRefCountRuntime) |