1//===--- LangOptions.def - Language option database -------------*- C++ -*-===// 2// 3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4// See https://llvm.org/LICENSE.txt for license information. 5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6// 7//===----------------------------------------------------------------------===// 8// 9// This file defines the language options. Users of this file must 10// define the LANGOPT macro to make use of this information. 11// 12// Optionally, the user may also define: 13// 14// BENIGN_LANGOPT: for options that don't affect the construction of the AST in 15// any way (that is, the value can be different between an implicit module 16// and the user of that module). 17// 18// COMPATIBLE_LANGOPT: for options that affect the construction of the AST in 19// a way that doesn't prevent interoperability (that is, the value can be 20// different between an explicit module and the user of that module). 21// 22// ENUM_LANGOPT: for options that have enumeration, rather than unsigned, type. 23// 24// VALUE_LANGOPT: for options that describe a value rather than a flag. 25// 26// BENIGN_ENUM_LANGOPT, COMPATIBLE_ENUM_LANGOPT, 27// BENIGN_VALUE_LANGOPT, COMPATIBLE_VALUE_LANGOPT: combinations of the above. 28// 29// FIXME: Clients should be able to more easily select whether they want 30// different levels of compatibility versus how to handle different kinds 31// of option. 32// 33// The Description field should be a noun phrase, for instance "frobbing all 34// widgets" or "C's implicit blintz feature". 35//===----------------------------------------------------------------------===// 36 37#ifndef LANGOPT 38# error Define the LANGOPT macro to handle language options 39#endif 40 41#ifndef COMPATIBLE_LANGOPT 42# define COMPATIBLE_LANGOPT(Name, Bits, Default, Description) \ 43 LANGOPT(Name, Bits, Default, Description) 44#endif 45 46#ifndef BENIGN_LANGOPT 47# define BENIGN_LANGOPT(Name, Bits, Default, Description) \ 48 COMPATIBLE_LANGOPT(Name, Bits, Default, Description) 49#endif 50 51#ifndef ENUM_LANGOPT 52# define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 53 LANGOPT(Name, Bits, Default, Description) 54#endif 55 56#ifndef COMPATIBLE_ENUM_LANGOPT 57# define COMPATIBLE_ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 58 ENUM_LANGOPT(Name, Type, Bits, Default, Description) 59#endif 60 61#ifndef BENIGN_ENUM_LANGOPT 62# define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 63 COMPATIBLE_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 64#endif 65 66#ifndef VALUE_LANGOPT 67# define VALUE_LANGOPT(Name, Bits, Default, Description) \ 68 LANGOPT(Name, Bits, Default, Description) 69#endif 70 71#ifndef COMPATIBLE_VALUE_LANGOPT 72# define COMPATIBLE_VALUE_LANGOPT(Name, Bits, Default, Description) \ 73 VALUE_LANGOPT(Name, Bits, Default, Description) 74#endif 75 76#ifndef BENIGN_VALUE_LANGOPT 77# define BENIGN_VALUE_LANGOPT(Name, Bits, Default, Description) \ 78 COMPATIBLE_VALUE_LANGOPT(Name, Bits, Default, Description) 79#endif 80 81// FIXME: A lot of the BENIGN_ options should be COMPATIBLE_ instead. 82LANGOPT(C99 , 1, 0, "C99") 83LANGOPT(C11 , 1, 0, "C11") 84LANGOPT(C17 , 1, 0, "C17") 85LANGOPT(C2x , 1, 0, "C2x") 86LANGOPT(MSVCCompat , 1, 0, "Microsoft Visual C++ full compatibility mode") 87LANGOPT(MicrosoftExt , 1, 0, "Microsoft C++ extensions") 88LANGOPT(AsmBlocks , 1, 0, "Microsoft inline asm blocks") 89LANGOPT(Borland , 1, 0, "Borland extensions") 90LANGOPT(CPlusPlus , 1, 0, "C++") 91LANGOPT(CPlusPlus11 , 1, 0, "C++11") 92LANGOPT(CPlusPlus14 , 1, 0, "C++14") 93LANGOPT(CPlusPlus17 , 1, 0, "C++17") 94LANGOPT(CPlusPlus20 , 1, 0, "C++20") 95LANGOPT(CPlusPlus2b , 1, 0, "C++2b") 96LANGOPT(ObjC , 1, 0, "Objective-C") 97BENIGN_LANGOPT(ObjCDefaultSynthProperties , 1, 0, 98 "Objective-C auto-synthesized properties") 99BENIGN_LANGOPT(EncodeExtendedBlockSig , 1, 0, 100 "Encoding extended block type signature") 101BENIGN_LANGOPT(EncodeCXXClassTemplateSpec , 1, 0, 102 "Fully encode c++ class template specialization") 103BENIGN_LANGOPT(ObjCInferRelatedResultType , 1, 1, 104 "Objective-C related result type inference") 105LANGOPT(AppExt , 1, 0, "Objective-C App Extension") 106LANGOPT(Trigraphs , 1, 0,"trigraphs") 107LANGOPT(LineComment , 1, 0, "'//' comments") 108LANGOPT(Bool , 1, 0, "bool, true, and false keywords") 109LANGOPT(Half , 1, 0, "half keyword") 110LANGOPT(WChar , 1, CPlusPlus, "wchar_t keyword") 111LANGOPT(Char8 , 1, 0, "char8_t keyword") 112LANGOPT(IEEE128 , 1, 0, "__ieee128 keyword") 113LANGOPT(DeclSpecKeyword , 1, 0, "__declspec keyword") 114BENIGN_LANGOPT(DollarIdents , 1, 1, "'$' in identifiers") 115BENIGN_LANGOPT(AsmPreprocessor, 1, 0, "preprocessor in asm mode") 116LANGOPT(GNUMode , 1, 1, "GNU extensions") 117LANGOPT(GNUKeywords , 1, 1, "GNU keywords") 118VALUE_LANGOPT(GNUCVersion , 32, 0, "GNU C compatibility version") 119BENIGN_LANGOPT(ImplicitInt, 1, !C99 && !CPlusPlus, "C89 implicit 'int'") 120LANGOPT(Digraphs , 1, 0, "digraphs") 121BENIGN_LANGOPT(HexFloats , 1, C99, "C99 hexadecimal float constants") 122LANGOPT(CXXOperatorNames , 1, 0, "C++ operator name keywords") 123LANGOPT(AppleKext , 1, 0, "Apple kext support") 124BENIGN_LANGOPT(PascalStrings, 1, 0, "Pascal string support") 125LANGOPT(WritableStrings , 1, 0, "writable string support") 126LANGOPT(ConstStrings , 1, 0, "const-qualified string support") 127ENUM_LANGOPT(LaxVectorConversions, LaxVectorConversionKind, 2, 128 LaxVectorConversionKind::All, "lax vector conversions") 129LANGOPT(ConvergentFunctions, 1, 1, "Assume convergent functions") 130LANGOPT(AltiVec , 1, 0, "AltiVec-style vector initializers") 131LANGOPT(ZVector , 1, 0, "System z vector extensions") 132LANGOPT(Exceptions , 1, 0, "exception handling") 133LANGOPT(ObjCExceptions , 1, 0, "Objective-C exceptions") 134LANGOPT(CXXExceptions , 1, 0, "C++ exceptions") 135LANGOPT(EHAsynch , 1, 0, "C/C++ EH Asynch exceptions") 136ENUM_LANGOPT(ExceptionHandling, ExceptionHandlingKind, 3, 137 ExceptionHandlingKind::None, "exception handling") 138LANGOPT(IgnoreExceptions , 1, 0, "ignore exceptions") 139LANGOPT(ExternCNoUnwind , 1, 0, "Assume extern C functions don't unwind") 140LANGOPT(TraditionalCPP , 1, 0, "traditional CPP emulation") 141LANGOPT(RTTI , 1, 1, "run-time type information") 142LANGOPT(RTTIData , 1, 1, "emit run-time type information data") 143LANGOPT(MSBitfields , 1, 0, "Microsoft-compatible structure layout") 144LANGOPT(Freestanding, 1, 0, "freestanding implementation") 145LANGOPT(NoBuiltin , 1, 0, "disable builtin functions") 146LANGOPT(NoMathBuiltin , 1, 0, "disable math builtin functions") 147LANGOPT(GNUAsm , 1, 1, "GNU-style inline assembly") 148LANGOPT(Coroutines , 1, 0, "C++20 coroutines") 149LANGOPT(DllExportInlines , 1, 1, "dllexported classes dllexport inline methods") 150LANGOPT(RelaxedTemplateTemplateArgs, 1, 0, "C++17 relaxed matching of template template arguments") 151 152LANGOPT(DoubleSquareBracketAttributes, 1, 0, "'[[]]' attributes extension for all language standard modes") 153 154COMPATIBLE_LANGOPT(RecoveryAST, 1, 1, "Preserve expressions in AST when encountering errors") 155COMPATIBLE_LANGOPT(RecoveryASTType, 1, 1, "Preserve the type in recovery expressions") 156 157BENIGN_LANGOPT(ThreadsafeStatics , 1, 1, "thread-safe static initializers") 158LANGOPT(POSIXThreads , 1, 0, "POSIX thread support") 159LANGOPT(Blocks , 1, 0, "blocks extension to C") 160BENIGN_LANGOPT(EmitAllDecls , 1, 0, "emitting all declarations") 161LANGOPT(MathErrno , 1, 1, "errno in math functions") 162BENIGN_LANGOPT(HeinousExtensions , 1, 0, "extensions that we really don't like and may be ripped out at any time") 163LANGOPT(Modules , 1, 0, "modules semantics") 164COMPATIBLE_LANGOPT(ModulesTS , 1, 0, "C++ Modules TS syntax") 165COMPATIBLE_LANGOPT(CPlusPlusModules, 1, 0, "C++ modules syntax") 166BENIGN_ENUM_LANGOPT(CompilingModule, CompilingModuleKind, 2, CMK_None, 167 "compiling a module interface") 168BENIGN_LANGOPT(CompilingPCH, 1, 0, "building a pch") 169BENIGN_LANGOPT(BuildingPCHWithObjectFile, 1, 0, "building a pch which has a corresponding object file") 170BENIGN_LANGOPT(CacheGeneratedPCH, 1, 0, "cache generated PCH files in memory") 171BENIGN_LANGOPT(PCHInstantiateTemplates, 1, 0, "instantiate templates while building a PCH") 172COMPATIBLE_LANGOPT(ModulesDeclUse , 1, 0, "require declaration of module uses") 173BENIGN_LANGOPT(ModulesSearchAll , 1, 1, "searching even non-imported modules to find unresolved references") 174COMPATIBLE_LANGOPT(ModulesStrictDeclUse, 1, 0, "requiring declaration of module uses and all headers to be in modules") 175BENIGN_LANGOPT(ModulesErrorRecovery, 1, 1, "automatically importing modules as needed when performing error recovery") 176BENIGN_LANGOPT(ImplicitModules, 1, 1, "building modules that are not specified via -fmodule-file") 177COMPATIBLE_LANGOPT(ModulesLocalVisibility, 1, 0, "local submodule visibility") 178COMPATIBLE_LANGOPT(Optimize , 1, 0, "__OPTIMIZE__ predefined macro") 179COMPATIBLE_LANGOPT(OptimizeSize , 1, 0, "__OPTIMIZE_SIZE__ predefined macro") 180COMPATIBLE_LANGOPT(Static , 1, 0, "__STATIC__ predefined macro (as opposed to __DYNAMIC__)") 181VALUE_LANGOPT(PackStruct , 32, 0, 182 "default struct packing maximum alignment") 183VALUE_LANGOPT(MaxTypeAlign , 32, 0, 184 "default maximum alignment for types") 185VALUE_LANGOPT(AlignDouble , 1, 0, "Controls if doubles should be aligned to 8 bytes (x86 only)") 186VALUE_LANGOPT(DoubleSize , 32, 0, "width of double") 187VALUE_LANGOPT(LongDoubleSize , 32, 0, "width of long double") 188LANGOPT(PPCIEEELongDouble , 1, 0, "use IEEE 754 quadruple-precision for long double") 189LANGOPT(EnableAIXExtendedAltivecABI , 1, 0, "__EXTABI__ predefined macro") 190COMPATIBLE_VALUE_LANGOPT(PICLevel , 2, 0, "__PIC__ level") 191COMPATIBLE_VALUE_LANGOPT(PIE , 1, 0, "is pie") 192LANGOPT(ROPI , 1, 0, "Read-only position independence") 193LANGOPT(RWPI , 1, 0, "Read-write position independence") 194COMPATIBLE_LANGOPT(GNUInline , 1, 0, "GNU inline semantics") 195COMPATIBLE_LANGOPT(NoInlineDefine , 1, 0, "__NO_INLINE__ predefined macro") 196COMPATIBLE_LANGOPT(Deprecated , 1, 0, "__DEPRECATED predefined macro") 197COMPATIBLE_LANGOPT(FastMath , 1, 0, "fast FP math optimizations, and __FAST_MATH__ predefined macro") 198COMPATIBLE_LANGOPT(FiniteMathOnly , 1, 0, "__FINITE_MATH_ONLY__ predefined macro") 199COMPATIBLE_LANGOPT(UnsafeFPMath , 1, 0, "Unsafe Floating Point Math") 200BENIGN_LANGOPT(AllowFPReassoc , 1, 0, "Permit Floating Point reassociation") 201BENIGN_LANGOPT(NoHonorNaNs , 1, 0, "Permit Floating Point optimization without regard to NaN") 202BENIGN_LANGOPT(NoHonorInfs , 1, 0, "Permit Floating Point optimization without regard to infinities") 203BENIGN_LANGOPT(NoSignedZero , 1, 0, "Permit Floating Point optimization without regard to signed zeros") 204BENIGN_LANGOPT(AllowRecip , 1, 0, "Permit Floating Point reciprocal") 205BENIGN_LANGOPT(ApproxFunc , 1, 0, "Permit Floating Point approximation") 206 207BENIGN_LANGOPT(ObjCGCBitmapPrint , 1, 0, "printing of GC's bitmap layout for __weak/__strong ivars") 208 209BENIGN_LANGOPT(AccessControl , 1, 1, "C++ access control") 210LANGOPT(CharIsSigned , 1, 1, "signed char") 211LANGOPT(WCharSize , 4, 0, "width of wchar_t") 212LANGOPT(WCharIsSigned , 1, 0, "signed or unsigned wchar_t") 213ENUM_LANGOPT(MSPointerToMemberRepresentationMethod, PragmaMSPointersToMembersKind, 2, PPTMK_BestCase, "member-pointer representation method") 214ENUM_LANGOPT(DefaultCallingConv, DefaultCallingConvention, 3, DCC_None, "default calling convention") 215 216LANGOPT(ShortEnums , 1, 0, "short enum types") 217 218LANGOPT(OpenCL , 1, 0, "OpenCL") 219LANGOPT(OpenCLVersion , 32, 0, "OpenCL C version") 220LANGOPT(OpenCLCPlusPlus , 1, 0, "C++ for OpenCL") 221LANGOPT(OpenCLCPlusPlusVersion , 32, 0, "C++ for OpenCL version") 222LANGOPT(OpenCLGenericAddressSpace, 1, 0, "OpenCL generic keyword") 223LANGOPT(OpenCLPipe , 1, 0, "OpenCL pipe keyword") 224LANGOPT(NativeHalfType , 1, 0, "Native half type support") 225LANGOPT(NativeHalfArgsAndReturns, 1, 0, "Native half args and returns") 226LANGOPT(HalfArgsAndReturns, 1, 0, "half args and returns") 227LANGOPT(CUDA , 1, 0, "CUDA") 228LANGOPT(HIP , 1, 0, "HIP") 229LANGOPT(OpenMP , 32, 0, "OpenMP support and version of OpenMP (31, 40 or 45)") 230LANGOPT(OpenMPSimd , 1, 0, "Use SIMD only OpenMP support.") 231LANGOPT(OpenMPUseTLS , 1, 0, "Use TLS for threadprivates or runtime calls") 232LANGOPT(OpenMPIsDevice , 1, 0, "Generate code only for OpenMP target device") 233LANGOPT(OpenMPCUDAMode , 1, 0, "Generate code for OpenMP pragmas in SIMT/SPMD mode") 234LANGOPT(OpenMPIRBuilder , 1, 0, "Use the experimental OpenMP-IR-Builder codegen path.") 235LANGOPT(OpenMPCUDAForceFullRuntime , 1, 0, "Force to use full runtime in all constructs when offloading to CUDA devices") 236LANGOPT(OpenMPCUDANumSMs , 32, 0, "Number of SMs for CUDA devices.") 237LANGOPT(OpenMPCUDABlocksPerSM , 32, 0, "Number of blocks per SM for CUDA devices.") 238LANGOPT(OpenMPCUDAReductionBufNum , 32, 1024, "Number of the reduction records in the intermediate reduction buffer used for the teams reductions.") 239LANGOPT(OpenMPOptimisticCollapse , 1, 0, "Use at most 32 bits to represent the collapsed loop nest counter.") 240LANGOPT(OpenMPCUDATargetParallel, 1, 0, "Support parallel execution of target region on Cuda-based devices.") 241LANGOPT(RenderScript , 1, 0, "RenderScript") 242 243LANGOPT(CUDAIsDevice , 1, 0, "compiling for CUDA device") 244LANGOPT(CUDAAllowVariadicFunctions, 1, 0, "allowing variadic functions in CUDA device code") 245LANGOPT(CUDAHostDeviceConstexpr, 1, 1, "treating unattributed constexpr functions as __host__ __device__") 246LANGOPT(CUDADeviceApproxTranscendentals, 1, 0, "using approximate transcendental functions") 247LANGOPT(GPURelocatableDeviceCode, 1, 0, "generate relocatable device code") 248LANGOPT(GPUAllowDeviceInit, 1, 0, "allowing device side global init functions for HIP") 249LANGOPT(GPUMaxThreadsPerBlock, 32, 1024, "default max threads per block for kernel launch bounds for HIP") 250LANGOPT(GPUDeferDiag, 1, 0, "defer host/device related diagnostic messages for CUDA/HIP") 251LANGOPT(GPUExcludeWrongSideOverloads, 1, 0, "always exclude wrong side overloads in overloading resolution for CUDA/HIP") 252 253LANGOPT(SYCLIsDevice , 1, 0, "Generate code for SYCL device") 254LANGOPT(SYCLIsHost , 1, 0, "SYCL host compilation") 255ENUM_LANGOPT(SYCLVersion , SYCLMajorVersion, 2, SYCL_None, "Version of the SYCL standard used") 256 257LANGOPT(HIPUseNewLaunchAPI, 1, 0, "Use new kernel launching API for HIP") 258 259LANGOPT(SizedDeallocation , 1, 0, "sized deallocation") 260LANGOPT(AlignedAllocation , 1, 0, "aligned allocation") 261LANGOPT(AlignedAllocationUnavailable, 1, 0, "aligned allocation functions are unavailable") 262LANGOPT(NewAlignOverride , 32, 0, "maximum alignment guaranteed by '::operator new(size_t)'") 263LANGOPT(ConceptSatisfactionCaching , 1, 1, "enable satisfaction caching for C++20 Concepts") 264BENIGN_LANGOPT(ModulesCodegen , 1, 0, "Modules code generation") 265BENIGN_LANGOPT(ModulesDebugInfo , 1, 0, "Modules debug info") 266BENIGN_LANGOPT(ElideConstructors , 1, 1, "C++ copy constructor elision") 267BENIGN_LANGOPT(DumpRecordLayouts , 1, 0, "dumping the layout of IRgen'd records") 268BENIGN_LANGOPT(DumpRecordLayoutsSimple , 1, 0, "dumping the layout of IRgen'd records in a simple form") 269BENIGN_LANGOPT(DumpVTableLayouts , 1, 0, "dumping the layouts of emitted vtables") 270LANGOPT(NoConstantCFStrings , 1, 0, "no constant CoreFoundation strings") 271BENIGN_LANGOPT(InlineVisibilityHidden , 1, 0, "hidden visibility for inline C++ methods") 272BENIGN_LANGOPT(IgnoreXCOFFVisibility, 1, 0, "All the visibility attributes that are specified in the source code are ignored in aix XCOFF.") 273BENIGN_LANGOPT(VisibilityInlinesHiddenStaticLocalVar, 1, 0, 274 "hidden visibility for static local variables in inline C++ " 275 "methods when -fvisibility-inlines hidden is enabled") 276LANGOPT(GlobalAllocationFunctionVisibilityHidden , 1, 0, "hidden visibility for global operator new and delete declaration") 277BENIGN_LANGOPT(ParseUnknownAnytype, 1, 0, "__unknown_anytype") 278BENIGN_LANGOPT(DebuggerSupport , 1, 0, "debugger support") 279BENIGN_LANGOPT(DebuggerCastResultToId, 1, 0, "for 'po' in the debugger, cast the result to id if it is of unknown type") 280BENIGN_LANGOPT(DebuggerObjCLiteral , 1, 0, "debugger Objective-C literals and subscripting support") 281 282BENIGN_LANGOPT(SpellChecking , 1, 1, "spell-checking") 283LANGOPT(SinglePrecisionConstants , 1, 0, "treating double-precision floating point constants as single precision constants") 284LANGOPT(FastRelaxedMath , 1, 0, "OpenCL fast relaxed math") 285BENIGN_LANGOPT(CLNoSignedZero , 1, 0, "Permit Floating Point optimization without regard to signed zeros") 286COMPATIBLE_LANGOPT(CLUnsafeMath , 1, 0, "Unsafe Floating Point Math") 287COMPATIBLE_LANGOPT(CLFiniteMathOnly , 1, 0, "__FINITE_MATH_ONLY__ predefined macro") 288/// FP_CONTRACT mode (on/off/fast). 289BENIGN_ENUM_LANGOPT(DefaultFPContractMode, FPModeKind, 2, FPM_Off, "FP contraction type") 290COMPATIBLE_LANGOPT(ExpStrictFP, 1, false, "Enable experimental strict floating point") 291BENIGN_ENUM_LANGOPT(FPRoundingMode, RoundingMode, 3, RoundingMode::NearestTiesToEven, "FP Rounding Mode type") 292BENIGN_ENUM_LANGOPT(FPExceptionMode, FPExceptionModeKind, 2, FPE_Ignore, "FP Exception Behavior Mode type") 293LANGOPT(NoBitFieldTypeAlign , 1, 0, "bit-field type alignment") 294LANGOPT(HexagonQdsp6Compat , 1, 0, "hexagon-qdsp6 backward compatibility") 295LANGOPT(ObjCAutoRefCount , 1, 0, "Objective-C automated reference counting") 296LANGOPT(ObjCWeakRuntime , 1, 0, "__weak support in the ARC runtime") 297LANGOPT(ObjCWeak , 1, 0, "Objective-C __weak in ARC and MRC files") 298LANGOPT(ObjCSubscriptingLegacyRuntime , 1, 0, "Subscripting support in legacy ObjectiveC runtime") 299BENIGN_LANGOPT(CompatibilityQualifiedIdBlockParamTypeChecking, 1, 0, 300 "compatibility mode for type checking block parameters " 301 "involving qualified id types") 302LANGOPT(ObjCDisableDirectMethodsForTesting, 1, 0, 303 "Disable recognition of objc_direct methods") 304LANGOPT(CFProtectionBranch , 1, 0, "Control-Flow Branch Protection enabled") 305LANGOPT(FakeAddressSpaceMap , 1, 0, "OpenCL fake address space map") 306ENUM_LANGOPT(AddressSpaceMapMangling , AddrSpaceMapMangling, 2, ASMM_Target, "OpenCL address space map mangling mode") 307LANGOPT(IncludeDefaultHeader, 1, 0, "Include default header file for OpenCL") 308LANGOPT(DeclareOpenCLBuiltins, 1, 0, "Declare OpenCL builtin functions") 309BENIGN_LANGOPT(DelayedTemplateParsing , 1, 0, "delayed template parsing") 310LANGOPT(BlocksRuntimeOptional , 1, 0, "optional blocks runtime") 311LANGOPT( 312 CompleteMemberPointers, 1, 0, 313 "Require member pointer base types to be complete at the point where the " 314 "type's inheritance model would be determined under the Microsoft ABI") 315 316ENUM_LANGOPT(GC, GCMode, 2, NonGC, "Objective-C Garbage Collection mode") 317ENUM_LANGOPT(ValueVisibilityMode, Visibility, 3, DefaultVisibility, 318 "default visibility for functions and variables [-fvisibility]") 319ENUM_LANGOPT(TypeVisibilityMode, Visibility, 3, DefaultVisibility, 320 "default visibility for types [-ftype-visibility]") 321LANGOPT(SetVisibilityForExternDecls, 1, 0, 322 "apply global symbol visibility to external declarations without an explicit visibility") 323LANGOPT(VisibilityFromDLLStorageClass, 1, 0, 324 "set the visiblity of globals from their DLL storage class [-fvisibility-from-dllstorageclass]") 325ENUM_LANGOPT(DLLExportVisibility, Visibility, 3, DefaultVisibility, 326 "visibility for functions and variables with dllexport annotations [-fvisibility-from-dllstorageclass]") 327ENUM_LANGOPT(NoDLLStorageClassVisibility, Visibility, 3, HiddenVisibility, 328 "visibility for functions and variables without an explicit DLL storage class [-fvisibility-from-dllstorageclass]") 329ENUM_LANGOPT(ExternDeclDLLImportVisibility, Visibility, 3, DefaultVisibility, 330 "visibility for external declarations with dllimport annotations [-fvisibility-from-dllstorageclass]") 331ENUM_LANGOPT(ExternDeclNoDLLStorageClassVisibility, Visibility, 3, HiddenVisibility, 332 "visibility for external declarations without an explicit DLL storage class [-fvisibility-from-dllstorageclass]") 333BENIGN_LANGOPT(SemanticInterposition , 1, 0, "semantic interposition") 334BENIGN_LANGOPT(HalfNoSemanticInterposition, 1, 0, 335 "Like -fno-semantic-interposition but don't use local aliases") 336ENUM_LANGOPT(StackProtector, StackProtectorMode, 2, SSPOff, 337 "stack protector mode") 338ENUM_LANGOPT(TrivialAutoVarInit, TrivialAutoVarInitKind, 2, TrivialAutoVarInitKind::Uninitialized, 339 "trivial automatic variable initialization") 340VALUE_LANGOPT(TrivialAutoVarInitStopAfter, 32, 0, 341 "stop trivial automatic variable initialization after the specified number of instances. Must be greater than 0.") 342ENUM_LANGOPT(SignedOverflowBehavior, SignedOverflowBehaviorTy, 2, SOB_Undefined, 343 "signed integer overflow handling") 344ENUM_LANGOPT(ThreadModel , ThreadModelKind, 2, ThreadModelKind::POSIX, "Thread Model") 345 346BENIGN_LANGOPT(ArrowDepth, 32, 256, 347 "maximum number of operator->s to follow") 348BENIGN_LANGOPT(InstantiationDepth, 32, 1024, 349 "maximum template instantiation depth") 350BENIGN_LANGOPT(ConstexprCallDepth, 32, 512, 351 "maximum constexpr call depth") 352BENIGN_LANGOPT(ConstexprStepLimit, 32, 1048576, 353 "maximum constexpr evaluation steps") 354BENIGN_LANGOPT(EnableNewConstInterp, 1, 0, 355 "enable the experimental new constant interpreter") 356BENIGN_LANGOPT(BracketDepth, 32, 256, 357 "maximum bracket nesting depth") 358BENIGN_LANGOPT(NumLargeByValueCopy, 32, 0, 359 "if non-zero, warn about parameter or return Warn if parameter/return value is larger in bytes than this setting. 0 is no check.") 360VALUE_LANGOPT(MSCompatibilityVersion, 32, 0, "Microsoft Visual C/C++ Version") 361ENUM_LANGOPT(VtorDispMode, MSVtorDispMode, 2, MSVtorDispMode::ForVBaseOverride, 362 "How many vtordisps to insert") 363 364LANGOPT(ApplePragmaPack, 1, 0, "Apple gcc-compatible #pragma pack handling") 365 366LANGOPT(XLPragmaPack, 1, 0, "IBM XL #pragma pack handling") 367 368LANGOPT(RetainCommentsFromSystemHeaders, 1, 0, "retain documentation comments from system headers in the AST") 369 370LANGOPT(SanitizeAddressFieldPadding, 2, 0, "controls how aggressive is ASan " 371 "field padding (0: none, 1:least " 372 "aggressive, 2: more aggressive)") 373 374LANGOPT(Cmse, 1, 0, "ARM Security extensions support") 375 376LANGOPT(XRayInstrument, 1, 0, "controls whether to do XRay instrumentation") 377LANGOPT(XRayAlwaysEmitCustomEvents, 1, 0, 378 "controls whether to always emit intrinsic calls to " 379 "__xray_customevent(...) builtin.") 380LANGOPT(XRayAlwaysEmitTypedEvents, 1, 0, 381 "controls whether to always emit intrinsic calls to " 382 "__xray_typedevent(...) builtin.") 383 384LANGOPT(ForceEmitVTables, 1, 0, "whether to emit all vtables") 385 386BENIGN_LANGOPT(AllowEditorPlaceholders, 1, 0, 387 "allow editor placeholders in source") 388 389ENUM_LANGOPT(ClangABICompat, ClangABI, 4, ClangABI::Latest, 390 "version of Clang that we should attempt to be ABI-compatible " 391 "with") 392 393COMPATIBLE_VALUE_LANGOPT(FunctionAlignment, 5, 0, "Default alignment for functions") 394 395LANGOPT(FixedPoint, 1, 0, "fixed point types") 396LANGOPT(PaddingOnUnsignedFixedPoint, 1, 0, 397 "unsigned fixed point types having one extra padding bit") 398 399LANGOPT(RegisterStaticDestructors, 1, 1, "Register C++ static destructors") 400 401LANGOPT(MatrixTypes, 1, 0, "Enable or disable the builtin matrix type") 402 403COMPATIBLE_VALUE_LANGOPT(MaxTokens, 32, 0, "Max number of tokens per TU or 0") 404 405ENUM_LANGOPT(SignReturnAddressScope, SignReturnAddressScopeKind, 2, SignReturnAddressScopeKind::None, 406 "Scope of return address signing") 407ENUM_LANGOPT(SignReturnAddressKey, SignReturnAddressKeyKind, 1, SignReturnAddressKeyKind::AKey, 408 "Key used for return address signing") 409LANGOPT(BranchTargetEnforcement, 1, 0, "Branch-target enforcement enabled") 410 411LANGOPT(SpeculativeLoadHardening, 1, 0, "Speculative load hardening enabled") 412 413LANGOPT(RelativeCXXABIVTables, 1, 0, 414 "Use an ABI-incompatible v-table layout that uses relative references") 415 416LANGOPT(ArmSveVectorBits, 32, 0, "SVE vector size in bits") 417 418ENUM_LANGOPT(ExtendIntArgs, ExtendArgsKind, 1, ExtendArgsKind::ExtendTo32, 419 "Controls how scalar integer arguments are extended in calls " 420 "to unprototyped and varargs functions") 421 422#undef LANGOPT 423#undef COMPATIBLE_LANGOPT 424#undef BENIGN_LANGOPT 425#undef ENUM_LANGOPT 426#undef COMPATIBLE_ENUM_LANGOPT 427#undef BENIGN_ENUM_LANGOPT 428#undef VALUE_LANGOPT 429#undef COMPATIBLE_VALUE_LANGOPT 430#undef BENIGN_VALUE_LANGOPT 431