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| //===--- LangOptions.def - Language option database -------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file defines the language options. Users of this file must
// define the LANGOPT macro to make use of this information.
//
// Optionally, the user may also define:
//
// BENIGN_LANGOPT: for options that don't affect the construction of the AST in
// any way (that is, the value can be different between an implicit module
// and the user of that module).
//
// COMPATIBLE_LANGOPT: for options that affect the construction of the AST in
// a way that doesn't prevent interoperability (that is, the value can be
// different between an explicit module and the user of that module).
//
// ENUM_LANGOPT: for options that have enumeration, rather than unsigned, type.
//
// VALUE_LANGOPT: for options that describe a value rather than a flag.
//
// BENIGN_ENUM_LANGOPT, COMPATIBLE_ENUM_LANGOPT,
// BENIGN_VALUE_LANGOPT, COMPATIBLE_VALUE_LANGOPT: combinations of the above.
//
// FIXME: Clients should be able to more easily select whether they want
// different levels of compatibility versus how to handle different kinds
// of option.
//
// The Description field should be a noun phrase, for instance "frobbing all
// widgets" or "C's implicit blintz feature".
//===----------------------------------------------------------------------===//
#ifndef LANGOPT
# error Define the LANGOPT macro to handle language options
#endif
#ifndef COMPATIBLE_LANGOPT
# define COMPATIBLE_LANGOPT(Name, Bits, Default, Description) \
LANGOPT(Name, Bits, Default, Description)
#endif
#ifndef BENIGN_LANGOPT
# define BENIGN_LANGOPT(Name, Bits, Default, Description) \
COMPATIBLE_LANGOPT(Name, Bits, Default, Description)
#endif
#ifndef ENUM_LANGOPT
# define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
LANGOPT(Name, Bits, Default, Description)
#endif
#ifndef COMPATIBLE_ENUM_LANGOPT
# define COMPATIBLE_ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
ENUM_LANGOPT(Name, Type, Bits, Default, Description)
#endif
#ifndef BENIGN_ENUM_LANGOPT
# define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
COMPATIBLE_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
#endif
#ifndef VALUE_LANGOPT
# define VALUE_LANGOPT(Name, Bits, Default, Description) \
LANGOPT(Name, Bits, Default, Description)
#endif
#ifndef COMPATIBLE_VALUE_LANGOPT
# define COMPATIBLE_VALUE_LANGOPT(Name, Bits, Default, Description) \
VALUE_LANGOPT(Name, Bits, Default, Description)
#endif
#ifndef BENIGN_VALUE_LANGOPT
# define BENIGN_VALUE_LANGOPT(Name, Bits, Default, Description) \
COMPATIBLE_VALUE_LANGOPT(Name, Bits, Default, Description)
#endif
// FIXME: A lot of the BENIGN_ options should be COMPATIBLE_ instead.
LANGOPT(C99 , 1, 0, "C99")
LANGOPT(C11 , 1, 0, "C11")
LANGOPT(C17 , 1, 0, "C17")
LANGOPT(C2x , 1, 0, "C2x")
LANGOPT(MSVCCompat , 1, 0, "Microsoft Visual C++ full compatibility mode")
LANGOPT(MicrosoftExt , 1, 0, "Microsoft C++ extensions")
LANGOPT(AsmBlocks , 1, 0, "Microsoft inline asm blocks")
LANGOPT(Borland , 1, 0, "Borland extensions")
LANGOPT(CPlusPlus , 1, 0, "C++")
LANGOPT(CPlusPlus11 , 1, 0, "C++11")
LANGOPT(CPlusPlus14 , 1, 0, "C++14")
LANGOPT(CPlusPlus17 , 1, 0, "C++17")
LANGOPT(CPlusPlus2a , 1, 0, "C++2a")
LANGOPT(ObjC , 1, 0, "Objective-C")
BENIGN_LANGOPT(ObjCDefaultSynthProperties , 1, 0,
"Objective-C auto-synthesized properties")
BENIGN_LANGOPT(EncodeExtendedBlockSig , 1, 0,
"Encoding extended block type signature")
BENIGN_LANGOPT(ObjCInferRelatedResultType , 1, 1,
"Objective-C related result type inference")
LANGOPT(AppExt , 1, 0, "Objective-C App Extension")
LANGOPT(Trigraphs , 1, 0,"trigraphs")
LANGOPT(LineComment , 1, 0, "'//' comments")
LANGOPT(Bool , 1, 0, "bool, true, and false keywords")
LANGOPT(Half , 1, 0, "half keyword")
LANGOPT(WChar , 1, CPlusPlus, "wchar_t keyword")
LANGOPT(Char8 , 1, 0, "char8_t keyword")
LANGOPT(DeclSpecKeyword , 1, 0, "__declspec keyword")
BENIGN_LANGOPT(DollarIdents , 1, 1, "'$' in identifiers")
BENIGN_LANGOPT(AsmPreprocessor, 1, 0, "preprocessor in asm mode")
LANGOPT(GNUMode , 1, 1, "GNU extensions")
LANGOPT(GNUKeywords , 1, 1, "GNU keywords")
VALUE_LANGOPT(GNUCVersion , 32, 0, "GNU C compatibility version")
BENIGN_LANGOPT(ImplicitInt, 1, !C99 && !CPlusPlus, "C89 implicit 'int'")
LANGOPT(Digraphs , 1, 0, "digraphs")
BENIGN_LANGOPT(HexFloats , 1, C99, "C99 hexadecimal float constants")
LANGOPT(CXXOperatorNames , 1, 0, "C++ operator name keywords")
LANGOPT(AppleKext , 1, 0, "Apple kext support")
BENIGN_LANGOPT(PascalStrings, 1, 0, "Pascal string support")
LANGOPT(WritableStrings , 1, 0, "writable string support")
LANGOPT(ConstStrings , 1, 0, "const-qualified string support")
ENUM_LANGOPT(LaxVectorConversions, LaxVectorConversionKind, 2,
LaxVectorConversionKind::All, "lax vector conversions")
LANGOPT(AltiVec , 1, 0, "AltiVec-style vector initializers")
LANGOPT(ZVector , 1, 0, "System z vector extensions")
LANGOPT(Exceptions , 1, 0, "exception handling")
LANGOPT(ObjCExceptions , 1, 0, "Objective-C exceptions")
LANGOPT(CXXExceptions , 1, 0, "C++ exceptions")
LANGOPT(DWARFExceptions , 1, 0, "dwarf exception handling")
LANGOPT(SjLjExceptions , 1, 0, "setjmp-longjump exception handling")
LANGOPT(SEHExceptions , 1, 0, "SEH .xdata exception handling")
LANGOPT(WasmExceptions , 1, 0, "WebAssembly exception handling")
LANGOPT(ExternCNoUnwind , 1, 0, "Assume extern C functions don't unwind")
LANGOPT(TraditionalCPP , 1, 0, "traditional CPP emulation")
LANGOPT(RTTI , 1, 1, "run-time type information")
LANGOPT(RTTIData , 1, 1, "emit run-time type information data")
LANGOPT(MSBitfields , 1, 0, "Microsoft-compatible structure layout")
LANGOPT(Freestanding, 1, 0, "freestanding implementation")
LANGOPT(NoBuiltin , 1, 0, "disable builtin functions")
LANGOPT(NoMathBuiltin , 1, 0, "disable math builtin functions")
LANGOPT(GNUAsm , 1, 1, "GNU-style inline assembly")
LANGOPT(Coroutines , 1, 0, "C++20 coroutines")
LANGOPT(DllExportInlines , 1, 1, "dllexported classes dllexport inline methods")
LANGOPT(RelaxedTemplateTemplateArgs, 1, 0, "C++17 relaxed matching of template template arguments")
LANGOPT(DoubleSquareBracketAttributes, 1, 0, "'[[]]' attributes extension for all language standard modes")
BENIGN_LANGOPT(ThreadsafeStatics , 1, 1, "thread-safe static initializers")
LANGOPT(POSIXThreads , 1, 0, "POSIX thread support")
LANGOPT(Blocks , 1, 0, "blocks extension to C")
BENIGN_LANGOPT(EmitAllDecls , 1, 0, "emitting all declarations")
LANGOPT(MathErrno , 1, 1, "errno in math functions")
BENIGN_LANGOPT(HeinousExtensions , 1, 0, "extensions that we really don't like and may be ripped out at any time")
LANGOPT(Modules , 1, 0, "modules semantics")
COMPATIBLE_LANGOPT(ModulesTS , 1, 0, "C++ Modules TS syntax")
COMPATIBLE_LANGOPT(CPlusPlusModules, 1, 0, "C++ modules syntax")
BENIGN_ENUM_LANGOPT(CompilingModule, CompilingModuleKind, 2, CMK_None,
"compiling a module interface")
BENIGN_LANGOPT(CompilingPCH, 1, 0, "building a pch")
BENIGN_LANGOPT(BuildingPCHWithObjectFile, 1, 0, "building a pch which has a corresponding object file")
BENIGN_LANGOPT(CacheGeneratedPCH, 1, 0, "cache generated PCH files in memory")
COMPATIBLE_LANGOPT(ModulesDeclUse , 1, 0, "require declaration of module uses")
BENIGN_LANGOPT(ModulesSearchAll , 1, 1, "searching even non-imported modules to find unresolved references")
COMPATIBLE_LANGOPT(ModulesStrictDeclUse, 1, 0, "requiring declaration of module uses and all headers to be in modules")
BENIGN_LANGOPT(ModulesErrorRecovery, 1, 1, "automatically importing modules as needed when performing error recovery")
BENIGN_LANGOPT(ImplicitModules, 1, 1, "building modules that are not specified via -fmodule-file")
COMPATIBLE_LANGOPT(ModulesLocalVisibility, 1, 0, "local submodule visibility")
COMPATIBLE_LANGOPT(Optimize , 1, 0, "__OPTIMIZE__ predefined macro")
COMPATIBLE_LANGOPT(OptimizeSize , 1, 0, "__OPTIMIZE_SIZE__ predefined macro")
COMPATIBLE_LANGOPT(Static , 1, 0, "__STATIC__ predefined macro (as opposed to __DYNAMIC__)")
VALUE_LANGOPT(PackStruct , 32, 0,
"default struct packing maximum alignment")
VALUE_LANGOPT(MaxTypeAlign , 32, 0,
"default maximum alignment for types")
VALUE_LANGOPT(AlignDouble , 1, 0, "Controls if doubles should be aligned to 8 bytes (x86 only)")
VALUE_LANGOPT(LongDoubleSize , 32, 0, "width of long double")
LANGOPT(PPCIEEELongDouble , 1, 0, "use IEEE 754 quadruple-precision for long double")
COMPATIBLE_VALUE_LANGOPT(PICLevel , 2, 0, "__PIC__ level")
COMPATIBLE_VALUE_LANGOPT(PIE , 1, 0, "is pie")
LANGOPT(ROPI , 1, 0, "Read-only position independence")
LANGOPT(RWPI , 1, 0, "Read-write position independence")
COMPATIBLE_LANGOPT(GNUInline , 1, 0, "GNU inline semantics")
COMPATIBLE_LANGOPT(NoInlineDefine , 1, 0, "__NO_INLINE__ predefined macro")
COMPATIBLE_LANGOPT(Deprecated , 1, 0, "__DEPRECATED predefined macro")
COMPATIBLE_LANGOPT(FastMath , 1, 0, "fast FP math optimizations, and __FAST_MATH__ predefined macro")
COMPATIBLE_LANGOPT(FiniteMathOnly , 1, 0, "__FINITE_MATH_ONLY__ predefined macro")
COMPATIBLE_LANGOPT(UnsafeFPMath , 1, 0, "Unsafe Floating Point Math")
BENIGN_LANGOPT(ObjCGCBitmapPrint , 1, 0, "printing of GC's bitmap layout for __weak/__strong ivars")
BENIGN_LANGOPT(AccessControl , 1, 1, "C++ access control")
LANGOPT(CharIsSigned , 1, 1, "signed char")
LANGOPT(WCharSize , 4, 0, "width of wchar_t")
LANGOPT(WCharIsSigned , 1, 0, "signed or unsigned wchar_t")
ENUM_LANGOPT(MSPointerToMemberRepresentationMethod, PragmaMSPointersToMembersKind, 2, PPTMK_BestCase, "member-pointer representation method")
ENUM_LANGOPT(DefaultCallingConv, DefaultCallingConvention, 3, DCC_None, "default calling convention")
LANGOPT(ShortEnums , 1, 0, "short enum types")
LANGOPT(OpenCL , 1, 0, "OpenCL")
LANGOPT(OpenCLVersion , 32, 0, "OpenCL C version")
LANGOPT(OpenCLCPlusPlus , 1, 0, "C++ for OpenCL")
LANGOPT(OpenCLCPlusPlusVersion , 32, 0, "C++ for OpenCL version")
LANGOPT(NativeHalfType , 1, 0, "Native half type support")
LANGOPT(NativeHalfArgsAndReturns, 1, 0, "Native half args and returns")
LANGOPT(HalfArgsAndReturns, 1, 0, "half args and returns")
LANGOPT(CUDA , 1, 0, "CUDA")
LANGOPT(HIP , 1, 0, "HIP")
LANGOPT(OpenMP , 32, 0, "OpenMP support and version of OpenMP (31, 40 or 45)")
LANGOPT(OpenMPSimd , 1, 0, "Use SIMD only OpenMP support.")
LANGOPT(OpenMPUseTLS , 1, 0, "Use TLS for threadprivates or runtime calls")
LANGOPT(OpenMPIsDevice , 1, 0, "Generate code only for OpenMP target device")
LANGOPT(OpenMPCUDAMode , 1, 0, "Generate code for OpenMP pragmas in SIMT/SPMD mode")
LANGOPT(OpenMPCUDAForceFullRuntime , 1, 0, "Force to use full runtime in all constructs when offloading to CUDA devices")
LANGOPT(OpenMPCUDANumSMs , 32, 0, "Number of SMs for CUDA devices.")
LANGOPT(OpenMPCUDABlocksPerSM , 32, 0, "Number of blocks per SM for CUDA devices.")
LANGOPT(OpenMPCUDAReductionBufNum , 32, 1024, "Number of the reduction records in the intermediate reduction buffer used for the teams reductions.")
LANGOPT(OpenMPOptimisticCollapse , 1, 0, "Use at most 32 bits to represent the collapsed loop nest counter.")
LANGOPT(RenderScript , 1, 0, "RenderScript")
LANGOPT(CUDAIsDevice , 1, 0, "compiling for CUDA device")
LANGOPT(CUDAAllowVariadicFunctions, 1, 0, "allowing variadic functions in CUDA device code")
LANGOPT(CUDAHostDeviceConstexpr, 1, 1, "treating unattributed constexpr functions as __host__ __device__")
LANGOPT(CUDADeviceApproxTranscendentals, 1, 0, "using approximate transcendental functions")
LANGOPT(GPURelocatableDeviceCode, 1, 0, "generate relocatable device code")
LANGOPT(GPUAllowDeviceInit, 1, 0, "allowing device side global init functions for HIP")
LANGOPT(SYCLIsDevice , 1, 0, "Generate code for SYCL device")
LANGOPT(HIPUseNewLaunchAPI, 1, 0, "Use new kernel launching API for HIP")
LANGOPT(SizedDeallocation , 1, 0, "sized deallocation")
LANGOPT(AlignedAllocation , 1, 0, "aligned allocation")
LANGOPT(AlignedAllocationUnavailable, 1, 0, "aligned allocation functions are unavailable")
LANGOPT(NewAlignOverride , 32, 0, "maximum alignment guaranteed by '::operator new(size_t)'")
LANGOPT(ConceptsTS , 1, 0, "enable C++ Extensions for Concepts")
BENIGN_LANGOPT(ModulesCodegen , 1, 0, "Modules code generation")
BENIGN_LANGOPT(ModulesDebugInfo , 1, 0, "Modules debug info")
BENIGN_LANGOPT(ElideConstructors , 1, 1, "C++ copy constructor elision")
BENIGN_LANGOPT(DumpRecordLayouts , 1, 0, "dumping the layout of IRgen'd records")
BENIGN_LANGOPT(DumpRecordLayoutsSimple , 1, 0, "dumping the layout of IRgen'd records in a simple form")
BENIGN_LANGOPT(DumpVTableLayouts , 1, 0, "dumping the layouts of emitted vtables")
LANGOPT(NoConstantCFStrings , 1, 0, "no constant CoreFoundation strings")
BENIGN_LANGOPT(InlineVisibilityHidden , 1, 0, "hidden visibility for inline C++ methods")
LANGOPT(GlobalAllocationFunctionVisibilityHidden , 1, 0, "hidden visibility for global operator new and delete declaration")
BENIGN_LANGOPT(ParseUnknownAnytype, 1, 0, "__unknown_anytype")
BENIGN_LANGOPT(DebuggerSupport , 1, 0, "debugger support")
BENIGN_LANGOPT(DebuggerCastResultToId, 1, 0, "for 'po' in the debugger, cast the result to id if it is of unknown type")
BENIGN_LANGOPT(DebuggerObjCLiteral , 1, 0, "debugger Objective-C literals and subscripting support")
BENIGN_LANGOPT(SpellChecking , 1, 1, "spell-checking")
LANGOPT(SinglePrecisionConstants , 1, 0, "treating double-precision floating point constants as single precision constants")
LANGOPT(FastRelaxedMath , 1, 0, "OpenCL fast relaxed math")
/// FP_CONTRACT mode (on/off/fast).
ENUM_LANGOPT(DefaultFPContractMode, FPContractModeKind, 2, FPC_Off, "FP contraction type")
LANGOPT(NoBitFieldTypeAlign , 1, 0, "bit-field type alignment")
LANGOPT(HexagonQdsp6Compat , 1, 0, "hexagon-qdsp6 backward compatibility")
LANGOPT(ObjCAutoRefCount , 1, 0, "Objective-C automated reference counting")
LANGOPT(ObjCWeakRuntime , 1, 0, "__weak support in the ARC runtime")
LANGOPT(ObjCWeak , 1, 0, "Objective-C __weak in ARC and MRC files")
LANGOPT(ObjCSubscriptingLegacyRuntime , 1, 0, "Subscripting support in legacy ObjectiveC runtime")
LANGOPT(CFProtectionBranch , 1, 0, "Control-Flow Branch Protection enabled")
LANGOPT(FakeAddressSpaceMap , 1, 0, "OpenCL fake address space map")
ENUM_LANGOPT(AddressSpaceMapMangling , AddrSpaceMapMangling, 2, ASMM_Target, "OpenCL address space map mangling mode")
LANGOPT(IncludeDefaultHeader, 1, 0, "Include default header file for OpenCL")
LANGOPT(DeclareOpenCLBuiltins, 1, 0, "Declare OpenCL builtin functions")
BENIGN_LANGOPT(DelayedTemplateParsing , 1, 0, "delayed template parsing")
LANGOPT(BlocksRuntimeOptional , 1, 0, "optional blocks runtime")
LANGOPT(
CompleteMemberPointers, 1, 0,
"Require member pointer base types to be complete at the point where the "
"type's inheritance model would be determined under the Microsoft ABI")
ENUM_LANGOPT(GC, GCMode, 2, NonGC, "Objective-C Garbage Collection mode")
ENUM_LANGOPT(ValueVisibilityMode, Visibility, 3, DefaultVisibility,
"default visibility for functions and variables [-fvisibility]")
ENUM_LANGOPT(TypeVisibilityMode, Visibility, 3, DefaultVisibility,
"default visibility for types [-ftype-visibility]")
LANGOPT(SetVisibilityForExternDecls, 1, 0,
"apply global symbol visibility to external declarations without an explicit visibility")
ENUM_LANGOPT(StackProtector, StackProtectorMode, 2, SSPOff,
"stack protector mode")
ENUM_LANGOPT(TrivialAutoVarInit, TrivialAutoVarInitKind, 2, TrivialAutoVarInitKind::Uninitialized,
"trivial automatic variable initialization")
ENUM_LANGOPT(SignedOverflowBehavior, SignedOverflowBehaviorTy, 2, SOB_Undefined,
"signed integer overflow handling")
BENIGN_LANGOPT(ArrowDepth, 32, 256,
"maximum number of operator->s to follow")
BENIGN_LANGOPT(InstantiationDepth, 32, 1024,
"maximum template instantiation depth")
BENIGN_LANGOPT(ConstexprCallDepth, 32, 512,
"maximum constexpr call depth")
BENIGN_LANGOPT(ConstexprStepLimit, 32, 1048576,
"maximum constexpr evaluation steps")
BENIGN_LANGOPT(EnableNewConstInterp, 1, 0,
"enable the experimental new constant interpreter")
BENIGN_LANGOPT(ForceNewConstInterp, 1, 0,
"force the use of the experimental new constant interpreter")
BENIGN_LANGOPT(BracketDepth, 32, 256,
"maximum bracket nesting depth")
BENIGN_LANGOPT(NumLargeByValueCopy, 32, 0,
"if non-zero, warn about parameter or return Warn if parameter/return value is larger in bytes than this setting. 0 is no check.")
VALUE_LANGOPT(MSCompatibilityVersion, 32, 0, "Microsoft Visual C/C++ Version")
VALUE_LANGOPT(VtorDispMode, 2, 1, "How many vtordisps to insert")
LANGOPT(ApplePragmaPack, 1, 0, "Apple gcc-compatible #pragma pack handling")
LANGOPT(RetainCommentsFromSystemHeaders, 1, 0, "retain documentation comments from system headers in the AST")
LANGOPT(SanitizeAddressFieldPadding, 2, 0, "controls how aggressive is ASan "
"field padding (0: none, 1:least "
"aggressive, 2: more aggressive)")
LANGOPT(Cmse, 1, 0, "ARM Security extensions support")
LANGOPT(XRayInstrument, 1, 0, "controls whether to do XRay instrumentation")
LANGOPT(XRayAlwaysEmitCustomEvents, 1, 0,
"controls whether to always emit intrinsic calls to "
"__xray_customevent(...) builtin.")
LANGOPT(XRayAlwaysEmitTypedEvents, 1, 0,
"controls whether to always emit intrinsic calls to "
"__xray_typedevent(...) builtin.")
LANGOPT(ForceEmitVTables, 1, 0, "whether to emit all vtables")
BENIGN_LANGOPT(AllowEditorPlaceholders, 1, 0,
"allow editor placeholders in source")
ENUM_LANGOPT(ClangABICompat, ClangABI, 4, ClangABI::Latest,
"version of Clang that we should attempt to be ABI-compatible "
"with")
COMPATIBLE_VALUE_LANGOPT(FunctionAlignment, 5, 0, "Default alignment for functions")
LANGOPT(FixedPoint, 1, 0, "fixed point types")
LANGOPT(PaddingOnUnsignedFixedPoint, 1, 0,
"unsigned fixed point types having one extra padding bit")
LANGOPT(RegisterStaticDestructors, 1, 1, "Register C++ static destructors")
#undef LANGOPT
#undef COMPATIBLE_LANGOPT
#undef BENIGN_LANGOPT
#undef ENUM_LANGOPT
#undef COMPATIBLE_ENUM_LANGOPT
#undef BENIGN_ENUM_LANGOPT
#undef VALUE_LANGOPT
#undef COMPATIBLE_VALUE_LANGOPT
#undef BENIGN_VALUE_LANGOPT
|