1 //===--- LangOptions.def - Language option database -------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file defines the language options. Users of this file must 11 // define the LANGOPT macro to make use of this information. 12 // 13 // Optionally, the user may also define: 14 // 15 // BENIGN_LANGOPT: for options that don't affect the construction of the AST in 16 // any way (that is, the value can be different between an implicit module 17 // and the user of that module). 18 // 19 // COMPATIBLE_LANGOPT: for options that affect the construction of the AST in 20 // a way that doesn't prevent interoperability (that is, the value can be 21 // different between an explicit module and the user of that module). 22 // 23 // ENUM_LANGOPT: for options that have enumeration, rather than unsigned, type. 24 // 25 // VALUE_LANGOPT: for options that describe a value rather than a flag. 26 // 27 // BENIGN_ENUM_LANGOPT, COMPATIBLE_ENUM_LANGOPT, 28 // BENIGN_VALUE_LANGOPT, COMPATIBLE_VALUE_LANGOPT: combinations of the above. 29 // 30 // FIXME: Clients should be able to more easily select whether they want 31 // different levels of compatibility versus how to handle different kinds 32 // of option. 33 // 34 // The Description field should be a noun phrase, for instance "frobbing all 35 // widgets" or "C's implicit blintz feature". 36 //===----------------------------------------------------------------------===// 37 38 #ifndef LANGOPT 39 # error Define the LANGOPT macro to handle language options 40 #endif 41 42 #ifndef COMPATIBLE_LANGOPT 43 # define COMPATIBLE_LANGOPT(Name, Bits, Default, Description) \ 44 LANGOPT(Name, Bits, Default, Description) 45 #endif 46 47 #ifndef BENIGN_LANGOPT 48 # define BENIGN_LANGOPT(Name, Bits, Default, Description) \ 49 COMPATIBLE_LANGOPT(Name, Bits, Default, Description) 50 #endif 51 52 #ifndef ENUM_LANGOPT 53 # define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 54 LANGOPT(Name, Bits, Default, Description) 55 #endif 56 57 #ifndef COMPATIBLE_ENUM_LANGOPT 58 # define COMPATIBLE_ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 59 ENUM_LANGOPT(Name, Type, Bits, Default, Description) 60 #endif 61 62 #ifndef BENIGN_ENUM_LANGOPT 63 # define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 64 COMPATIBLE_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 65 #endif 66 67 #ifndef VALUE_LANGOPT 68 # define VALUE_LANGOPT(Name, Bits, Default, Description) \ 69 LANGOPT(Name, Bits, Default, Description) 70 #endif 71 72 #ifndef COMPATIBLE_VALUE_LANGOPT 73 # define COMPATIBLE_VALUE_LANGOPT(Name, Bits, Default, Description) \ 74 VALUE_LANGOPT(Name, Bits, Default, Description) 75 #endif 76 77 #ifndef BENIGN_VALUE_LANGOPT 78 # define BENIGN_VALUE_LANGOPT(Name, Bits, Default, Description) \ 79 COMPATIBLE_VALUE_LANGOPT(Name, Bits, Default, Description) 80 #endif 81 82 // FIXME: A lot of the BENIGN_ options should be COMPATIBLE_ instead. 83 LANGOPT(C99 , 1, 0, "C99") 84 LANGOPT(C11 , 1, 0, "C11") 85 LANGOPT(MSVCCompat , 1, 0, "Microsoft Visual C++ full compatibility mode") 86 LANGOPT(MicrosoftExt , 1, 0, "Microsoft C++ extensions") 87 LANGOPT(AsmBlocks , 1, 0, "Microsoft inline asm blocks") 88 LANGOPT(Borland , 1, 0, "Borland extensions") 89 LANGOPT(CPlusPlus , 1, 0, "C++") 90 LANGOPT(CPlusPlus11 , 1, 0, "C++11") 91 LANGOPT(CPlusPlus14 , 1, 0, "C++14") 92 LANGOPT(CPlusPlus1z , 1, 0, "C++17") 93 LANGOPT(CPlusPlus2a , 1, 0, "C++2a") 94 LANGOPT(ObjC1 , 1, 0, "Objective-C 1") 95 LANGOPT(ObjC2 , 1, 0, "Objective-C 2") 96 BENIGN_LANGOPT(ObjCDefaultSynthProperties , 1, 0, 97 "Objective-C auto-synthesized properties") 98 BENIGN_LANGOPT(EncodeExtendedBlockSig , 1, 0, 99 "Encoding extended block type signature") 100 BENIGN_LANGOPT(ObjCInferRelatedResultType , 1, 1, 101 "Objective-C related result type inference") 102 LANGOPT(AppExt , 1, 0, "Objective-C App Extension") 103 LANGOPT(Trigraphs , 1, 0,"trigraphs") 104 LANGOPT(LineComment , 1, 0, "'//' comments") 105 LANGOPT(Bool , 1, 0, "bool, true, and false keywords") 106 LANGOPT(Half , 1, 0, "half keyword") 107 LANGOPT(WChar , 1, CPlusPlus, "wchar_t keyword") 108 LANGOPT(DeclSpecKeyword , 1, 0, "__declspec keyword") 109 BENIGN_LANGOPT(DollarIdents , 1, 1, "'$' in identifiers") 110 BENIGN_LANGOPT(AsmPreprocessor, 1, 0, "preprocessor in asm mode") 111 LANGOPT(GNUMode , 1, 1, "GNU extensions") 112 LANGOPT(GNUKeywords , 1, 1, "GNU keywords") 113 BENIGN_LANGOPT(ImplicitInt, 1, !C99 && !CPlusPlus, "C89 implicit 'int'") 114 LANGOPT(Digraphs , 1, 0, "digraphs") 115 BENIGN_LANGOPT(HexFloats , 1, C99, "C99 hexadecimal float constants") 116 LANGOPT(CXXOperatorNames , 1, 0, "C++ operator name keywords") 117 LANGOPT(AppleKext , 1, 0, "Apple kext support") 118 BENIGN_LANGOPT(PascalStrings, 1, 0, "Pascal string support") 119 LANGOPT(WritableStrings , 1, 0, "writable string support") 120 LANGOPT(ConstStrings , 1, 0, "const-qualified string support") 121 LANGOPT(LaxVectorConversions , 1, 1, "lax vector conversions") 122 LANGOPT(AltiVec , 1, 0, "AltiVec-style vector initializers") 123 LANGOPT(ZVector , 1, 0, "System z vector extensions") 124 LANGOPT(Exceptions , 1, 0, "exception handling") 125 LANGOPT(ObjCExceptions , 1, 0, "Objective-C exceptions") 126 LANGOPT(CXXExceptions , 1, 0, "C++ exceptions") 127 LANGOPT(SjLjExceptions , 1, 0, "setjmp-longjump exception handling") 128 LANGOPT(ExternCNoUnwind , 1, 0, "Assume extern C functions don't unwind") 129 LANGOPT(TraditionalCPP , 1, 0, "traditional CPP emulation") 130 LANGOPT(RTTI , 1, 1, "run-time type information") 131 LANGOPT(RTTIData , 1, 1, "emit run-time type information data") 132 LANGOPT(MSBitfields , 1, 0, "Microsoft-compatible structure layout") 133 LANGOPT(Freestanding, 1, 0, "freestanding implementation") 134 LANGOPT(NoBuiltin , 1, 0, "disable builtin functions") 135 LANGOPT(NoMathBuiltin , 1, 0, "disable math builtin functions") 136 LANGOPT(GNUAsm , 1, 1, "GNU-style inline assembly") 137 LANGOPT(CoroutinesTS , 1, 0, "C++ coroutines TS") 138 LANGOPT(RelaxedTemplateTemplateArgs, 1, 0, "C++17 relaxed matching of template template arguments") 139 140 LANGOPT(DoubleSquareBracketAttributes, 1, 0, "'[[]]' attributes extension for all language standard modes") 141 142 BENIGN_LANGOPT(ThreadsafeStatics , 1, 1, "thread-safe static initializers") 143 LANGOPT(POSIXThreads , 1, 0, "POSIX thread support") 144 LANGOPT(Blocks , 1, 0, "blocks extension to C") 145 BENIGN_LANGOPT(EmitAllDecls , 1, 0, "emitting all declarations") 146 LANGOPT(MathErrno , 1, 1, "errno in math functions") 147 BENIGN_LANGOPT(HeinousExtensions , 1, 0, "extensions that we really don't like and may be ripped out at any time") 148 LANGOPT(Modules , 1, 0, "modules extension to C") 149 COMPATIBLE_LANGOPT(ModulesTS , 1, 0, "C++ Modules TS") 150 BENIGN_ENUM_LANGOPT(CompilingModule, CompilingModuleKind, 2, CMK_None, 151 "compiling a module interface") 152 BENIGN_LANGOPT(CompilingPCH, 1, 0, "building a pch") 153 COMPATIBLE_LANGOPT(ModulesDeclUse , 1, 0, "require declaration of module uses") 154 BENIGN_LANGOPT(ModulesSearchAll , 1, 1, "searching even non-imported modules to find unresolved references") 155 COMPATIBLE_LANGOPT(ModulesStrictDeclUse, 1, 0, "requiring declaration of module uses and all headers to be in modules") 156 BENIGN_LANGOPT(ModulesErrorRecovery, 1, 1, "automatically importing modules as needed when performing error recovery") 157 BENIGN_LANGOPT(ImplicitModules, 1, 1, "building modules that are not specified via -fmodule-file") 158 COMPATIBLE_LANGOPT(ModulesLocalVisibility, 1, 0, "local submodule visibility") 159 COMPATIBLE_LANGOPT(Optimize , 1, 0, "__OPTIMIZE__ predefined macro") 160 COMPATIBLE_LANGOPT(OptimizeSize , 1, 0, "__OPTIMIZE_SIZE__ predefined macro") 161 COMPATIBLE_LANGOPT(Static , 1, 0, "__STATIC__ predefined macro (as opposed to __DYNAMIC__)") 162 VALUE_LANGOPT(PackStruct , 32, 0, 163 "default struct packing maximum alignment") 164 VALUE_LANGOPT(MaxTypeAlign , 32, 0, 165 "default maximum alignment for types") 166 VALUE_LANGOPT(AlignDouble , 1, 0, "Controls if doubles should be aligned to 8 bytes (x86 only)") 167 COMPATIBLE_VALUE_LANGOPT(PICLevel , 2, 0, "__PIC__ level") 168 COMPATIBLE_VALUE_LANGOPT(PIE , 1, 0, "is pie") 169 COMPATIBLE_LANGOPT(GNUInline , 1, 0, "GNU inline semantics") 170 COMPATIBLE_LANGOPT(NoInlineDefine , 1, 0, "__NO_INLINE__ predefined macro") 171 COMPATIBLE_LANGOPT(Deprecated , 1, 0, "__DEPRECATED predefined macro") 172 COMPATIBLE_LANGOPT(FastMath , 1, 0, "fast FP math optimizations, and __FAST_MATH__ predefined macro") 173 COMPATIBLE_LANGOPT(FiniteMathOnly , 1, 0, "__FINITE_MATH_ONLY__ predefined macro") 174 COMPATIBLE_LANGOPT(UnsafeFPMath , 1, 0, "Unsafe Floating Point Math") 175 176 BENIGN_LANGOPT(ObjCGCBitmapPrint , 1, 0, "printing of GC's bitmap layout for __weak/__strong ivars") 177 178 BENIGN_LANGOPT(AccessControl , 1, 1, "C++ access control") 179 LANGOPT(CharIsSigned , 1, 1, "signed char") 180 LANGOPT(WCharSize , 4, 0, "width of wchar_t") 181 LANGOPT(WCharIsSigned , 1, 0, "signed or unsigned wchar_t") 182 ENUM_LANGOPT(MSPointerToMemberRepresentationMethod, PragmaMSPointersToMembersKind, 2, PPTMK_BestCase, "member-pointer representation method") 183 ENUM_LANGOPT(DefaultCallingConv, DefaultCallingConvention, 3, DCC_None, "default calling convention") 184 185 LANGOPT(ShortEnums , 1, 0, "short enum types") 186 187 LANGOPT(OpenCL , 1, 0, "OpenCL") 188 LANGOPT(OpenCLVersion , 32, 0, "OpenCL version") 189 LANGOPT(NativeHalfType , 1, 0, "Native half type support") 190 LANGOPT(NativeHalfArgsAndReturns, 1, 0, "Native half args and returns") 191 LANGOPT(HalfArgsAndReturns, 1, 0, "half args and returns") 192 LANGOPT(CUDA , 1, 0, "CUDA") 193 LANGOPT(OpenMP , 32, 0, "OpenMP support and version of OpenMP (31, 40 or 45)") 194 LANGOPT(OpenMPUseTLS , 1, 0, "Use TLS for threadprivates or runtime calls") 195 LANGOPT(OpenMPIsDevice , 1, 0, "Generate code only for OpenMP target device") 196 LANGOPT(RenderScript , 1, 0, "RenderScript") 197 198 LANGOPT(CUDAIsDevice , 1, 0, "compiling for CUDA device") 199 LANGOPT(CUDAAllowVariadicFunctions, 1, 0, "allowing variadic functions in CUDA device code") 200 LANGOPT(CUDAHostDeviceConstexpr, 1, 1, "treating unattributed constexpr functions as __host__ __device__") 201 LANGOPT(CUDADeviceFlushDenormalsToZero, 1, 0, "flushing denormals to zero") 202 LANGOPT(CUDADeviceApproxTranscendentals, 1, 0, "using approximate transcendental functions") 203 204 LANGOPT(SizedDeallocation , 1, 0, "sized deallocation") 205 LANGOPT(AlignedAllocation , 1, 0, "aligned allocation") 206 LANGOPT(AlignedAllocationUnavailable, 1, 0, "aligned allocation functions are unavailable") 207 LANGOPT(NewAlignOverride , 32, 0, "maximum alignment guaranteed by '::operator new(size_t)'") 208 LANGOPT(ConceptsTS , 1, 0, "enable C++ Extensions for Concepts") 209 BENIGN_LANGOPT(ModulesCodegen , 1, 0, "Modules code generation") 210 BENIGN_LANGOPT(ModulesDebugInfo , 1, 0, "Modules debug info") 211 BENIGN_LANGOPT(ElideConstructors , 1, 1, "C++ copy constructor elision") 212 BENIGN_LANGOPT(DumpRecordLayouts , 1, 0, "dumping the layout of IRgen'd records") 213 BENIGN_LANGOPT(DumpRecordLayoutsSimple , 1, 0, "dumping the layout of IRgen'd records in a simple form") 214 BENIGN_LANGOPT(DumpVTableLayouts , 1, 0, "dumping the layouts of emitted vtables") 215 LANGOPT(NoConstantCFStrings , 1, 0, "no constant CoreFoundation strings") 216 BENIGN_LANGOPT(InlineVisibilityHidden , 1, 0, "hidden default visibility for inline C++ methods") 217 BENIGN_LANGOPT(ParseUnknownAnytype, 1, 0, "__unknown_anytype") 218 BENIGN_LANGOPT(DebuggerSupport , 1, 0, "debugger support") 219 BENIGN_LANGOPT(DebuggerCastResultToId, 1, 0, "for 'po' in the debugger, cast the result to id if it is of unknown type") 220 BENIGN_LANGOPT(DebuggerObjCLiteral , 1, 0, "debugger Objective-C literals and subscripting support") 221 222 BENIGN_LANGOPT(SpellChecking , 1, 1, "spell-checking") 223 LANGOPT(SinglePrecisionConstants , 1, 0, "treating double-precision floating point constants as single precision constants") 224 LANGOPT(FastRelaxedMath , 1, 0, "OpenCL fast relaxed math") 225 /// \brief FP_CONTRACT mode (on/off/fast). 226 ENUM_LANGOPT(DefaultFPContractMode, FPContractModeKind, 2, FPC_Off, "FP contraction type") 227 LANGOPT(NoBitFieldTypeAlign , 1, 0, "bit-field type alignment") 228 LANGOPT(HexagonQdsp6Compat , 1, 0, "hexagon-qdsp6 backward compatibility") 229 LANGOPT(ObjCAutoRefCount , 1, 0, "Objective-C automated reference counting") 230 LANGOPT(ObjCWeakRuntime , 1, 0, "__weak support in the ARC runtime") 231 LANGOPT(ObjCWeak , 1, 0, "Objective-C __weak in ARC and MRC files") 232 LANGOPT(ObjCSubscriptingLegacyRuntime , 1, 0, "Subscripting support in legacy ObjectiveC runtime") 233 LANGOPT(FakeAddressSpaceMap , 1, 0, "OpenCL fake address space map") 234 ENUM_LANGOPT(AddressSpaceMapMangling , AddrSpaceMapMangling, 2, ASMM_Target, "OpenCL address space map mangling mode") 235 LANGOPT(IncludeDefaultHeader, 1, 0, "Include default header file for OpenCL") 236 BENIGN_LANGOPT(DelayedTemplateParsing , 1, 0, "delayed template parsing") 237 LANGOPT(BlocksRuntimeOptional , 1, 0, "optional blocks runtime") 238 239 ENUM_LANGOPT(GC, GCMode, 2, NonGC, "Objective-C Garbage Collection mode") 240 ENUM_LANGOPT(ValueVisibilityMode, Visibility, 3, DefaultVisibility, 241 "value symbol visibility") 242 ENUM_LANGOPT(TypeVisibilityMode, Visibility, 3, DefaultVisibility, 243 "type symbol visibility") 244 ENUM_LANGOPT(StackProtector, StackProtectorMode, 2, SSPOff, 245 "stack protector mode") 246 ENUM_LANGOPT(SignedOverflowBehavior, SignedOverflowBehaviorTy, 2, SOB_Undefined, 247 "signed integer overflow handling") 248 249 BENIGN_LANGOPT(ArrowDepth, 32, 256, 250 "maximum number of operator->s to follow") 251 BENIGN_LANGOPT(InstantiationDepth, 32, 1024, 252 "maximum template instantiation depth") 253 BENIGN_LANGOPT(ConstexprCallDepth, 32, 512, 254 "maximum constexpr call depth") 255 BENIGN_LANGOPT(ConstexprStepLimit, 32, 1048576, 256 "maximum constexpr evaluation steps") 257 BENIGN_LANGOPT(BracketDepth, 32, 256, 258 "maximum bracket nesting depth") 259 BENIGN_LANGOPT(NumLargeByValueCopy, 32, 0, 260 "if non-zero, warn about parameter or return Warn if parameter/return value is larger in bytes than this setting. 0 is no check.") 261 VALUE_LANGOPT(MSCompatibilityVersion, 32, 0, "Microsoft Visual C/C++ Version") 262 VALUE_LANGOPT(VtorDispMode, 2, 1, "How many vtordisps to insert") 263 264 LANGOPT(ApplePragmaPack, 1, 0, "Apple gcc-compatible #pragma pack handling") 265 266 LANGOPT(RetainCommentsFromSystemHeaders, 1, 0, "retain documentation comments from system headers in the AST") 267 268 LANGOPT(SanitizeAddressFieldPadding, 2, 0, "controls how aggressive is ASan " 269 "field padding (0: none, 1:least " 270 "aggressive, 2: more aggressive)") 271 272 LANGOPT(XRayInstrument, 1, 0, "controls whether to do XRay instrumentation") 273 274 BENIGN_LANGOPT(AllowEditorPlaceholders, 1, 0, 275 "allow editor placeholders in source") 276 277 #undef LANGOPT 278 #undef COMPATIBLE_LANGOPT 279 #undef BENIGN_LANGOPT 280 #undef ENUM_LANGOPT 281 #undef COMPATIBLE_ENUM_LANGOPT 282 #undef BENIGN_ENUM_LANGOPT 283 #undef VALUE_LANGOPT 284 #undef COMPATIBLE_VALUE_LANGOPT 285 #undef BENIGN_VALUE_LANGOPT 286 287
