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")
135ENUM_LANGOPT(ExceptionHandling, ExceptionHandlingKind, 3,
136 ExceptionHandlingKind::None, "exception handling")
137LANGOPT(IgnoreExceptions , 1, 0, "ignore exceptions")
138LANGOPT(ExternCNoUnwind , 1, 0, "Assume extern C functions don't unwind")
139LANGOPT(TraditionalCPP , 1, 0, "traditional CPP emulation")
140LANGOPT(RTTI , 1, 1, "run-time type information")
141LANGOPT(RTTIData , 1, 1, "emit run-time type information data")
142LANGOPT(MSBitfields , 1, 0, "Microsoft-compatible structure layout")
143LANGOPT(Freestanding, 1, 0, "freestanding implementation")
144LANGOPT(NoBuiltin , 1, 0, "disable builtin functions")
145LANGOPT(NoMathBuiltin , 1, 0, "disable math builtin functions")
146LANGOPT(GNUAsm , 1, 1, "GNU-style inline assembly")
147LANGOPT(Coroutines , 1, 0, "C++20 coroutines")
148LANGOPT(DllExportInlines , 1, 1, "dllexported classes dllexport inline methods")
149LANGOPT(RelaxedTemplateTemplateArgs, 1, 0, "C++17 relaxed matching of template template arguments")
150
151LANGOPT(DoubleSquareBracketAttributes, 1, 0, "'[[]]' attributes extension for all language standard modes")
152
153COMPATIBLE_LANGOPT(RecoveryAST, 1, 1, "Preserve expressions in AST when encountering errors")
154COMPATIBLE_LANGOPT(RecoveryASTType, 1, 1, "Preserve the type in recovery expressions")
155
156BENIGN_LANGOPT(ThreadsafeStatics , 1, 1, "thread-safe static initializers")
157LANGOPT(POSIXThreads , 1, 0, "POSIX thread support")
158LANGOPT(Blocks , 1, 0, "blocks extension to C")
159BENIGN_LANGOPT(EmitAllDecls , 1, 0, "emitting all declarations")
160LANGOPT(MathErrno , 1, 1, "errno in math functions")
161BENIGN_LANGOPT(HeinousExtensions , 1, 0, "extensions that we really don't like and may be ripped out at any time")
162LANGOPT(Modules , 1, 0, "modules semantics")
163COMPATIBLE_LANGOPT(ModulesTS , 1, 0, "C++ Modules TS syntax")
164COMPATIBLE_LANGOPT(CPlusPlusModules, 1, 0, "C++ modules syntax")
165BENIGN_ENUM_LANGOPT(CompilingModule, CompilingModuleKind, 2, CMK_None,
166 "compiling a module interface")
167BENIGN_LANGOPT(CompilingPCH, 1, 0, "building a pch")
168BENIGN_LANGOPT(BuildingPCHWithObjectFile, 1, 0, "building a pch which has a corresponding object file")
169BENIGN_LANGOPT(CacheGeneratedPCH, 1, 0, "cache generated PCH files in memory")
170BENIGN_LANGOPT(PCHInstantiateTemplates, 1, 0, "instantiate templates while building a PCH")
171COMPATIBLE_LANGOPT(ModulesDeclUse , 1, 0, "require declaration of module uses")
172BENIGN_LANGOPT(ModulesSearchAll , 1, 1, "searching even non-imported modules to find unresolved references")
173COMPATIBLE_LANGOPT(ModulesStrictDeclUse, 1, 0, "requiring declaration of module uses and all headers to be in modules")
174BENIGN_LANGOPT(ModulesErrorRecovery, 1, 1, "automatically importing modules as needed when performing error recovery")
175BENIGN_LANGOPT(ImplicitModules, 1, 1, "building modules that are not specified via -fmodule-file")
176COMPATIBLE_LANGOPT(ModulesLocalVisibility, 1, 0, "local submodule visibility")
177COMPATIBLE_LANGOPT(Optimize , 1, 0, "__OPTIMIZE__ predefined macro")
178COMPATIBLE_LANGOPT(OptimizeSize , 1, 0, "__OPTIMIZE_SIZE__ predefined macro")
179COMPATIBLE_LANGOPT(Static , 1, 0, "__STATIC__ predefined macro (as opposed to __DYNAMIC__)")
180VALUE_LANGOPT(PackStruct , 32, 0,
181 "default struct packing maximum alignment")
182VALUE_LANGOPT(MaxTypeAlign , 32, 0,
183 "default maximum alignment for types")
184VALUE_LANGOPT(AlignDouble , 1, 0, "Controls if doubles should be aligned to 8 bytes (x86 only)")
185VALUE_LANGOPT(DoubleSize , 32, 0, "width of double")
186VALUE_LANGOPT(LongDoubleSize , 32, 0, "width of long double")
187LANGOPT(PPCIEEELongDouble , 1, 0, "use IEEE 754 quadruple-precision for long double")
188LANGOPT(EnableAIXExtendedAltivecABI , 1, 0, "__EXTABI__ predefined macro")
189COMPATIBLE_VALUE_LANGOPT(PICLevel , 2, 0, "__PIC__ level")
190COMPATIBLE_VALUE_LANGOPT(PIE , 1, 0, "is pie")
191LANGOPT(ROPI , 1, 0, "Read-only position independence")
192LANGOPT(RWPI , 1, 0, "Read-write position independence")
193COMPATIBLE_LANGOPT(GNUInline , 1, 0, "GNU inline semantics")
194COMPATIBLE_LANGOPT(NoInlineDefine , 1, 0, "__NO_INLINE__ predefined macro")
195COMPATIBLE_LANGOPT(Deprecated , 1, 0, "__DEPRECATED predefined macro")
196COMPATIBLE_LANGOPT(FastMath , 1, 0, "fast FP math optimizations, and __FAST_MATH__ predefined macro")
197COMPATIBLE_LANGOPT(FiniteMathOnly , 1, 0, "__FINITE_MATH_ONLY__ predefined macro")
198COMPATIBLE_LANGOPT(UnsafeFPMath , 1, 0, "Unsafe Floating Point Math")
199BENIGN_LANGOPT(AllowFPReassoc , 1, 0, "Permit Floating Point reassociation")
200BENIGN_LANGOPT(NoHonorNaNs , 1, 0, "Permit Floating Point optimization without regard to NaN")
201BENIGN_LANGOPT(NoHonorInfs , 1, 0, "Permit Floating Point optimization without regard to infinities")
202BENIGN_LANGOPT(NoSignedZero , 1, 0, "Permit Floating Point optimization without regard to signed zeros")
203BENIGN_LANGOPT(AllowRecip , 1, 0, "Permit Floating Point reciprocal")
204BENIGN_LANGOPT(ApproxFunc , 1, 0, "Permit Floating Point approximation")
205
206BENIGN_LANGOPT(ObjCGCBitmapPrint , 1, 0, "printing of GC's bitmap layout for __weak/__strong ivars")
207
208BENIGN_LANGOPT(AccessControl , 1, 1, "C++ access control")
209LANGOPT(CharIsSigned , 1, 1, "signed char")
210LANGOPT(WCharSize , 4, 0, "width of wchar_t")
211LANGOPT(WCharIsSigned , 1, 0, "signed or unsigned wchar_t")
212ENUM_LANGOPT(MSPointerToMemberRepresentationMethod, PragmaMSPointersToMembersKind, 2, PPTMK_BestCase, "member-pointer representation method")
213ENUM_LANGOPT(DefaultCallingConv, DefaultCallingConvention, 3, DCC_None, "default calling convention")
214
215LANGOPT(ShortEnums , 1, 0, "short enum types")
216
217LANGOPT(OpenCL , 1, 0, "OpenCL")
218LANGOPT(OpenCLVersion , 32, 0, "OpenCL C version")
219LANGOPT(OpenCLCPlusPlus , 1, 0, "C++ for OpenCL")
220LANGOPT(OpenCLCPlusPlusVersion , 32, 0, "C++ for OpenCL version")
221LANGOPT(OpenCLGenericAddressSpace, 1, 0, "OpenCL generic keyword")
222LANGOPT(OpenCLPipe , 1, 0, "OpenCL pipe keyword")
223LANGOPT(NativeHalfType , 1, 0, "Native half type support")
224LANGOPT(NativeHalfArgsAndReturns, 1, 0, "Native half args and returns")
225LANGOPT(HalfArgsAndReturns, 1, 0, "half args and returns")
226LANGOPT(CUDA , 1, 0, "CUDA")
227LANGOPT(HIP , 1, 0, "HIP")
228LANGOPT(OpenMP , 32, 0, "OpenMP support and version of OpenMP (31, 40 or 45)")
229LANGOPT(OpenMPSimd , 1, 0, "Use SIMD only OpenMP support.")
230LANGOPT(OpenMPUseTLS , 1, 0, "Use TLS for threadprivates or runtime calls")
231LANGOPT(OpenMPIsDevice , 1, 0, "Generate code only for OpenMP target device")
232LANGOPT(OpenMPCUDAMode , 1, 0, "Generate code for OpenMP pragmas in SIMT/SPMD mode")
233LANGOPT(OpenMPIRBuilder , 1, 0, "Use the experimental OpenMP-IR-Builder codegen path.")
234LANGOPT(OpenMPCUDAForceFullRuntime , 1, 0, "Force to use full runtime in all constructs when offloading to CUDA devices")
235LANGOPT(OpenMPCUDANumSMs , 32, 0, "Number of SMs for CUDA devices.")
236LANGOPT(OpenMPCUDABlocksPerSM , 32, 0, "Number of blocks per SM for CUDA devices.")
237LANGOPT(OpenMPCUDAReductionBufNum , 32, 1024, "Number of the reduction records in the intermediate reduction buffer used for the teams reductions.")
238LANGOPT(OpenMPOptimisticCollapse , 1, 0, "Use at most 32 bits to represent the collapsed loop nest counter.")
239LANGOPT(OpenMPCUDATargetParallel, 1, 0, "Support parallel execution of target region on Cuda-based devices.")
240LANGOPT(RenderScript , 1, 0, "RenderScript")
241
242LANGOPT(CUDAIsDevice , 1, 0, "compiling for CUDA device")
243LANGOPT(CUDAAllowVariadicFunctions, 1, 0, "allowing variadic functions in CUDA device code")
244LANGOPT(CUDAHostDeviceConstexpr, 1, 1, "treating unattributed constexpr functions as __host__ __device__")
245LANGOPT(CUDADeviceApproxTranscendentals, 1, 0, "using approximate transcendental functions")
246LANGOPT(GPURelocatableDeviceCode, 1, 0, "generate relocatable device code")
247LANGOPT(GPUAllowDeviceInit, 1, 0, "allowing device side global init functions for HIP")
248LANGOPT(GPUMaxThreadsPerBlock, 32, 1024, "default max threads per block for kernel launch bounds for HIP")
249LANGOPT(GPUDeferDiag, 1, 0, "defer host/device related diagnostic messages for CUDA/HIP")
250LANGOPT(GPUExcludeWrongSideOverloads, 1, 0, "always exclude wrong side overloads in overloading resolution for CUDA/HIP")
251
252LANGOPT(SYCLIsDevice , 1, 0, "Generate code for SYCL device")
253LANGOPT(SYCLIsHost , 1, 0, "SYCL host compilation")
254ENUM_LANGOPT(SYCLVersion , SYCLMajorVersion, 1, SYCL_None, "Version of the SYCL standard used")
255
256LANGOPT(HIPUseNewLaunchAPI, 1, 0, "Use new kernel launching API for HIP")
257
258LANGOPT(SizedDeallocation , 1, 0, "sized deallocation")
259LANGOPT(AlignedAllocation , 1, 0, "aligned allocation")
260LANGOPT(AlignedAllocationUnavailable, 1, 0, "aligned allocation functions are unavailable")
261LANGOPT(NewAlignOverride , 32, 0, "maximum alignment guaranteed by '::operator new(size_t)'")
262LANGOPT(ConceptSatisfactionCaching , 1, 1, "enable satisfaction caching for C++20 Concepts")
263BENIGN_LANGOPT(ModulesCodegen , 1, 0, "Modules code generation")
264BENIGN_LANGOPT(ModulesDebugInfo , 1, 0, "Modules debug info")
265BENIGN_LANGOPT(ElideConstructors , 1, 1, "C++ copy constructor elision")
266BENIGN_LANGOPT(DumpRecordLayouts , 1, 0, "dumping the layout of IRgen'd records")
267BENIGN_LANGOPT(DumpRecordLayoutsSimple , 1, 0, "dumping the layout of IRgen'd records in a simple form")
268BENIGN_LANGOPT(DumpVTableLayouts , 1, 0, "dumping the layouts of emitted vtables")
269LANGOPT(NoConstantCFStrings , 1, 0, "no constant CoreFoundation strings")
270BENIGN_LANGOPT(InlineVisibilityHidden , 1, 0, "hidden visibility for inline C++ methods")
271BENIGN_LANGOPT(IgnoreXCOFFVisibility, 1, 0, "All the visibility attributes that are specified in the source code are ignored in aix XCOFF.")
272BENIGN_LANGOPT(VisibilityInlinesHiddenStaticLocalVar, 1, 0,
273 "hidden visibility for static local variables in inline C++ "
274 "methods when -fvisibility-inlines hidden is enabled")
275LANGOPT(GlobalAllocationFunctionVisibilityHidden , 1, 0, "hidden visibility for global operator new and delete declaration")
276BENIGN_LANGOPT(ParseUnknownAnytype, 1, 0, "__unknown_anytype")
277BENIGN_LANGOPT(DebuggerSupport , 1, 0, "debugger support")
278BENIGN_LANGOPT(DebuggerCastResultToId, 1, 0, "for 'po' in the debugger, cast the result to id if it is of unknown type")
279BENIGN_LANGOPT(DebuggerObjCLiteral , 1, 0, "debugger Objective-C literals and subscripting support")
280
281BENIGN_LANGOPT(SpellChecking , 1, 1, "spell-checking")
282LANGOPT(SinglePrecisionConstants , 1, 0, "treating double-precision floating point constants as single precision constants")
283LANGOPT(FastRelaxedMath , 1, 0, "OpenCL fast relaxed math")
284BENIGN_LANGOPT(CLNoSignedZero , 1, 0, "Permit Floating Point optimization without regard to signed zeros")
285COMPATIBLE_LANGOPT(CLUnsafeMath , 1, 0, "Unsafe Floating Point Math")
286COMPATIBLE_LANGOPT(CLFiniteMathOnly , 1, 0, "__FINITE_MATH_ONLY__ predefined macro")
287/// FP_CONTRACT mode (on/off/fast).
288BENIGN_ENUM_LANGOPT(DefaultFPContractMode, FPModeKind, 2, FPM_Off, "FP contraction type")
289COMPATIBLE_LANGOPT(ExpStrictFP, 1, false, "Enable experimental strict floating point")
290BENIGN_ENUM_LANGOPT(FPRoundingMode, RoundingMode, 3, RoundingMode::NearestTiesToEven, "FP Rounding Mode type")
291BENIGN_ENUM_LANGOPT(FPExceptionMode, FPExceptionModeKind, 2, FPE_Ignore, "FP Exception Behavior Mode type")
292LANGOPT(NoBitFieldTypeAlign , 1, 0, "bit-field type alignment")
293LANGOPT(HexagonQdsp6Compat , 1, 0, "hexagon-qdsp6 backward compatibility")
294LANGOPT(ObjCAutoRefCount , 1, 0, "Objective-C automated reference counting")
295LANGOPT(ObjCWeakRuntime , 1, 0, "__weak support in the ARC runtime")
296LANGOPT(ObjCWeak , 1, 0, "Objective-C __weak in ARC and MRC files")
297LANGOPT(ObjCSubscriptingLegacyRuntime , 1, 0, "Subscripting support in legacy ObjectiveC runtime")
298BENIGN_LANGOPT(CompatibilityQualifiedIdBlockParamTypeChecking, 1, 0,
299 "compatibility mode for type checking block parameters "
300 "involving qualified id types")
301LANGOPT(ObjCDisableDirectMethodsForTesting, 1, 0,
302 "Disable recognition of objc_direct methods")
303LANGOPT(CFProtectionBranch , 1, 0, "Control-Flow Branch Protection enabled")
304LANGOPT(FakeAddressSpaceMap , 1, 0, "OpenCL fake address space map")
305ENUM_LANGOPT(AddressSpaceMapMangling , AddrSpaceMapMangling, 2, ASMM_Target, "OpenCL address space map mangling mode")
306LANGOPT(IncludeDefaultHeader, 1, 0, "Include default header file for OpenCL")
307LANGOPT(DeclareOpenCLBuiltins, 1, 0, "Declare OpenCL builtin functions")
308BENIGN_LANGOPT(DelayedTemplateParsing , 1, 0, "delayed template parsing")
309LANGOPT(BlocksRuntimeOptional , 1, 0, "optional blocks runtime")
310LANGOPT(
311 CompleteMemberPointers, 1, 0,
312 "Require member pointer base types to be complete at the point where the "
313 "type's inheritance model would be determined under the Microsoft ABI")
314
315ENUM_LANGOPT(GC, GCMode, 2, NonGC, "Objective-C Garbage Collection mode")
316ENUM_LANGOPT(ValueVisibilityMode, Visibility, 3, DefaultVisibility,
317 "default visibility for functions and variables [-fvisibility]")
318ENUM_LANGOPT(TypeVisibilityMode, Visibility, 3, DefaultVisibility,
319 "default visibility for types [-ftype-visibility]")
320LANGOPT(SetVisibilityForExternDecls, 1, 0,
321 "apply global symbol visibility to external declarations without an explicit visibility")
322LANGOPT(VisibilityFromDLLStorageClass, 1, 0,
323 "set the visiblity of globals from their DLL storage class [-fvisibility-from-dllstorageclass]")
324ENUM_LANGOPT(DLLExportVisibility, Visibility, 3, DefaultVisibility,
325 "visibility for functions and variables with dllexport annotations [-fvisibility-from-dllstorageclass]")
326ENUM_LANGOPT(NoDLLStorageClassVisibility, Visibility, 3, HiddenVisibility,
327 "visibility for functions and variables without an explicit DLL storage class [-fvisibility-from-dllstorageclass]")
328ENUM_LANGOPT(ExternDeclDLLImportVisibility, Visibility, 3, DefaultVisibility,
329 "visibility for external declarations with dllimport annotations [-fvisibility-from-dllstorageclass]")
330ENUM_LANGOPT(ExternDeclNoDLLStorageClassVisibility, Visibility, 3, HiddenVisibility,
331 "visibility for external declarations without an explicit DLL storage class [-fvisibility-from-dllstorageclass]")
332BENIGN_LANGOPT(SemanticInterposition , 1, 0, "semantic interposition")
333BENIGN_LANGOPT(HalfNoSemanticInterposition, 1, 0,
334 "Like -fno-semantic-interposition but don't use local aliases")
335ENUM_LANGOPT(StackProtector, StackProtectorMode, 2, SSPOff,
336 "stack protector mode")
337ENUM_LANGOPT(TrivialAutoVarInit, TrivialAutoVarInitKind, 2, TrivialAutoVarInitKind::Uninitialized,
338 "trivial automatic variable initialization")
339VALUE_LANGOPT(TrivialAutoVarInitStopAfter, 32, 0,
340 "stop trivial automatic variable initialization after the specified number of instances. Must be greater than 0.")
341ENUM_LANGOPT(SignedOverflowBehavior, SignedOverflowBehaviorTy, 2, SOB_Undefined,
342 "signed integer overflow handling")
343ENUM_LANGOPT(ThreadModel , ThreadModelKind, 2, ThreadModelKind::POSIX, "Thread Model")
344
345BENIGN_LANGOPT(ArrowDepth, 32, 256,
346 "maximum number of operator->s to follow")
347BENIGN_LANGOPT(InstantiationDepth, 32, 1024,
348 "maximum template instantiation depth")
349BENIGN_LANGOPT(ConstexprCallDepth, 32, 512,
350 "maximum constexpr call depth")
351BENIGN_LANGOPT(ConstexprStepLimit, 32, 1048576,
352 "maximum constexpr evaluation steps")
353BENIGN_LANGOPT(EnableNewConstInterp, 1, 0,
354 "enable the experimental new constant interpreter")
355BENIGN_LANGOPT(BracketDepth, 32, 256,
356 "maximum bracket nesting depth")
357BENIGN_LANGOPT(NumLargeByValueCopy, 32, 0,
358 "if non-zero, warn about parameter or return Warn if parameter/return value is larger in bytes than this setting. 0 is no check.")
359VALUE_LANGOPT(MSCompatibilityVersion, 32, 0, "Microsoft Visual C/C++ Version")
360ENUM_LANGOPT(VtorDispMode, MSVtorDispMode, 2, MSVtorDispMode::ForVBaseOverride,
361 "How many vtordisps to insert")
362
363LANGOPT(ApplePragmaPack, 1, 0, "Apple gcc-compatible #pragma pack handling")
364
365LANGOPT(XLPragmaPack, 1, 0, "IBM XL #pragma pack handling")
366
367LANGOPT(RetainCommentsFromSystemHeaders, 1, 0, "retain documentation comments from system headers in the AST")
368
369LANGOPT(SanitizeAddressFieldPadding, 2, 0, "controls how aggressive is ASan "
370 "field padding (0: none, 1:least "
371 "aggressive, 2: more aggressive)")
372
373LANGOPT(Cmse, 1, 0, "ARM Security extensions support")
374
375LANGOPT(XRayInstrument, 1, 0, "controls whether to do XRay instrumentation")
376LANGOPT(XRayAlwaysEmitCustomEvents, 1, 0,
377 "controls whether to always emit intrinsic calls to "
378 "__xray_customevent(...) builtin.")
379LANGOPT(XRayAlwaysEmitTypedEvents, 1, 0,
380 "controls whether to always emit intrinsic calls to "
381 "__xray_typedevent(...) builtin.")
382
383LANGOPT(ForceEmitVTables, 1, 0, "whether to emit all vtables")
384
385BENIGN_LANGOPT(AllowEditorPlaceholders, 1, 0,
386 "allow editor placeholders in source")
387
388ENUM_LANGOPT(ClangABICompat, ClangABI, 4, ClangABI::Latest,
389 "version of Clang that we should attempt to be ABI-compatible "
390 "with")
391
392COMPATIBLE_VALUE_LANGOPT(FunctionAlignment, 5, 0, "Default alignment for functions")
393
394LANGOPT(FixedPoint, 1, 0, "fixed point types")
395LANGOPT(PaddingOnUnsignedFixedPoint, 1, 0,
396 "unsigned fixed point types having one extra padding bit")
397
398LANGOPT(RegisterStaticDestructors, 1, 1, "Register C++ static destructors")
399
400LANGOPT(MatrixTypes, 1, 0, "Enable or disable the builtin matrix type")
401
402COMPATIBLE_VALUE_LANGOPT(MaxTokens, 32, 0, "Max number of tokens per TU or 0")
403
404ENUM_LANGOPT(SignReturnAddressScope, SignReturnAddressScopeKind, 2, SignReturnAddressScopeKind::None,
405 "Scope of return address signing")
406ENUM_LANGOPT(SignReturnAddressKey, SignReturnAddressKeyKind, 1, SignReturnAddressKeyKind::AKey,
407 "Key used for return address signing")
408LANGOPT(BranchTargetEnforcement, 1, 0, "Branch-target enforcement enabled")
409
410LANGOPT(SpeculativeLoadHardening, 1, 0, "Speculative load hardening enabled")
411
412LANGOPT(RelativeCXXABIVTables, 1, 0,
413 "Use an ABI-incompatible v-table layout that uses relative references")
414
415LANGOPT(ArmSveVectorBits, 32, 0, "SVE vector size in bits")
416
417#undef LANGOPT
418#undef COMPATIBLE_LANGOPT
419#undef BENIGN_LANGOPT
420#undef ENUM_LANGOPT
421#undef COMPATIBLE_ENUM_LANGOPT
422#undef BENIGN_ENUM_LANGOPT
423#undef VALUE_LANGOPT
424#undef COMPATIBLE_VALUE_LANGOPT
425#undef BENIGN_VALUE_LANGOPT
426