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: 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
34#ifndef LANGOPT
35#  error Define the LANGOPT macro to handle language options
36#endif
37
38#ifndef COMPATIBLE_LANGOPT
39#  define COMPATIBLE_LANGOPT(Name, Bits, Default, Description) \
40     LANGOPT(Name, Bits, Default, Description)
41#endif
42
43#ifndef BENIGN_LANGOPT
44#  define BENIGN_LANGOPT(Name, Bits, Default, Description) \
45     COMPATIBLE_LANGOPT(Name, Bits, Default, Description)
46#endif
47
48#ifndef ENUM_LANGOPT
49#  define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
50     LANGOPT(Name, Bits, Default, Description)
51#endif
52
53#ifndef COMPATIBLE_ENUM_LANGOPT
54#  define COMPATIBLE_ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
55     ENUM_LANGOPT(Name, Type, Bits, Default, Description)
56#endif
57
58#ifndef BENIGN_ENUM_LANGOPT
59#  define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
60     COMPATIBLE_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
61#endif
62
63#ifndef VALUE_LANGOPT
64#  define VALUE_LANGOPT(Name, Bits, Default, Description) \
65     LANGOPT(Name, Bits, Default, Description)
66#endif
67
68// FIXME: A lot of the BENIGN_ options should be COMPATIBLE_ instead.
69LANGOPT(C99               , 1, 0, "C99")
70LANGOPT(C11               , 1, 0, "C11")
71LANGOPT(MSVCCompat        , 1, 0, "Microsoft Visual C++ full compatibility mode")
72LANGOPT(MicrosoftExt      , 1, 0, "Microsoft C++ extensions")
73LANGOPT(AsmBlocks         , 1, 0, "Microsoft inline asm blocks")
74LANGOPT(Borland           , 1, 0, "Borland extensions")
75LANGOPT(CPlusPlus         , 1, 0, "C++")
76LANGOPT(CPlusPlus11       , 1, 0, "C++11")
77LANGOPT(CPlusPlus14       , 1, 0, "C++14")
78LANGOPT(CPlusPlus1z       , 1, 0, "C++1z")
79LANGOPT(ObjC1             , 1, 0, "Objective-C 1")
80LANGOPT(ObjC2             , 1, 0, "Objective-C 2")
81BENIGN_LANGOPT(ObjCDefaultSynthProperties , 1, 0,
82               "Objective-C auto-synthesized properties")
83BENIGN_LANGOPT(EncodeExtendedBlockSig , 1, 0,
84               "Encoding extended block type signature")
85BENIGN_LANGOPT(ObjCInferRelatedResultType , 1, 1,
86               "Objective-C related result type inference")
87LANGOPT(AppExt , 1, 0, "Objective-C App Extension")
88LANGOPT(Trigraphs         , 1, 0,"trigraphs")
89LANGOPT(LineComment       , 1, 0, "'//' comments")
90LANGOPT(Bool              , 1, 0, "bool, true, and false keywords")
91LANGOPT(Half              , 1, 0, "half keyword")
92LANGOPT(WChar             , 1, CPlusPlus, "wchar_t keyword")
93BENIGN_LANGOPT(DollarIdents   , 1, 1, "'$' in identifiers")
94BENIGN_LANGOPT(AsmPreprocessor, 1, 0, "preprocessor in asm mode")
95BENIGN_LANGOPT(GNUMode        , 1, 1, "GNU extensions")
96LANGOPT(GNUKeywords       , 1, 1, "GNU keywords")
97BENIGN_LANGOPT(ImplicitInt, 1, !C99 && !CPlusPlus, "C89 implicit 'int'")
98LANGOPT(Digraphs          , 1, 0, "digraphs")
99BENIGN_LANGOPT(HexFloats  , 1, C99, "C99 hexadecimal float constants")
100LANGOPT(CXXOperatorNames  , 1, 0, "C++ operator name keywords")
101LANGOPT(AppleKext         , 1, 0, "Apple kext support")
102BENIGN_LANGOPT(PascalStrings, 1, 0, "Pascal string support")
103LANGOPT(WritableStrings   , 1, 0, "writable string support")
104LANGOPT(ConstStrings      , 1, 0, "const-qualified string support")
105LANGOPT(LaxVectorConversions , 1, 1, "lax vector conversions")
106LANGOPT(AltiVec           , 1, 0, "AltiVec-style vector initializers")
107LANGOPT(Exceptions        , 1, 0, "exception handling")
108LANGOPT(ObjCExceptions    , 1, 0, "Objective-C exceptions")
109LANGOPT(CXXExceptions     , 1, 0, "C++ exceptions")
110LANGOPT(SjLjExceptions    , 1, 0, "setjmp-longjump exception handling")
111LANGOPT(TraditionalCPP    , 1, 0, "traditional CPP emulation")
112LANGOPT(RTTI              , 1, 1, "run-time type information")
113LANGOPT(RTTIData          , 1, 1, "emit run-time type information data")
114LANGOPT(MSBitfields       , 1, 0, "Microsoft-compatible structure layout")
115LANGOPT(Freestanding, 1, 0, "freestanding implementation")
116LANGOPT(NoBuiltin         , 1, 0, "disable builtin functions")
117LANGOPT(NoMathBuiltin     , 1, 0, "disable math builtin functions")
118LANGOPT(GNUAsm            , 1, 1, "GNU-style inline assembly")
119
120BENIGN_LANGOPT(ThreadsafeStatics , 1, 1, "thread-safe static initializers")
121LANGOPT(POSIXThreads      , 1, 0, "POSIX thread support")
122LANGOPT(Blocks            , 1, 0, "blocks extension to C")
123BENIGN_LANGOPT(EmitAllDecls      , 1, 0, "support for emitting all declarations")
124LANGOPT(MathErrno         , 1, 1, "errno support for math functions")
125BENIGN_LANGOPT(HeinousExtensions , 1, 0, "Extensions that we really don't like and may be ripped out at any time")
126LANGOPT(Modules           , 1, 0, "modules extension to C")
127COMPATIBLE_LANGOPT(ModulesDeclUse    , 1, 0, "require declaration of module uses")
128LANGOPT(ModulesSearchAll  , 1, 1, "search even non-imported modules to find unresolved references")
129COMPATIBLE_LANGOPT(ModulesStrictDeclUse, 1, 0, "require declaration of module uses and all headers to be in modules")
130LANGOPT(ModulesErrorRecovery, 1, 1, "automatically import modules as needed when performing error recovery")
131BENIGN_LANGOPT(ModulesImplicitMaps, 1, 1, "use files called module.modulemap implicitly as module maps")
132BENIGN_LANGOPT(ImplicitModules, 1, 1, "build modules that are not specified via -fmodule-file")
133COMPATIBLE_LANGOPT(Optimize          , 1, 0, "__OPTIMIZE__ predefined macro")
134COMPATIBLE_LANGOPT(OptimizeSize      , 1, 0, "__OPTIMIZE_SIZE__ predefined macro")
135LANGOPT(Static            , 1, 0, "__STATIC__ predefined macro (as opposed to __DYNAMIC__)")
136VALUE_LANGOPT(PackStruct  , 32, 0,
137              "default struct packing maximum alignment")
138VALUE_LANGOPT(MaxTypeAlign  , 32, 0,
139              "default maximum alignment for types")
140VALUE_LANGOPT(PICLevel    , 2, 0, "__PIC__ level")
141VALUE_LANGOPT(PIELevel    , 2, 0, "__PIE__ level")
142LANGOPT(GNUInline         , 1, 0, "GNU inline semantics")
143COMPATIBLE_LANGOPT(NoInlineDefine    , 1, 0, "__NO_INLINE__ predefined macro")
144COMPATIBLE_LANGOPT(Deprecated        , 1, 0, "__DEPRECATED predefined macro")
145LANGOPT(FastMath          , 1, 0, "__FAST_MATH__ predefined macro")
146LANGOPT(FiniteMathOnly    , 1, 0, "__FINITE_MATH_ONLY__ predefined macro")
147
148BENIGN_LANGOPT(ObjCGCBitmapPrint , 1, 0, "printing of GC's bitmap layout for __weak/__strong ivars")
149
150BENIGN_LANGOPT(AccessControl     , 1, 1, "C++ access control")
151LANGOPT(CharIsSigned      , 1, 1, "signed char")
152LANGOPT(ShortWChar        , 1, 0, "unsigned short wchar_t")
153ENUM_LANGOPT(MSPointerToMemberRepresentationMethod, PragmaMSPointersToMembersKind, 2, PPTMK_BestCase, "member-pointer representation method")
154
155LANGOPT(ShortEnums        , 1, 0, "short enum types")
156
157LANGOPT(OpenCL            , 1, 0, "OpenCL")
158LANGOPT(OpenCLVersion     , 32, 0, "OpenCL version")
159LANGOPT(NativeHalfType    , 1, 0, "Native half type support")
160LANGOPT(HalfArgsAndReturns, 1, 0, "half args and returns")
161LANGOPT(CUDA              , 1, 0, "CUDA")
162LANGOPT(OpenMP            , 1, 0, "OpenMP support")
163LANGOPT(Renderscript      , 1, 0, "RenderScript")
164LANGOPT(CUDAIsDevice      , 1, 0, "Compiling for CUDA device")
165LANGOPT(CUDAAllowHostCallsFromHostDevice, 1, 0, "Allow host device functions to call host functions")
166LANGOPT(CUDADisableTargetCallChecks, 1, 0, "Disable checks for call targets (host, device, etc.)")
167
168LANGOPT(AssumeSaneOperatorNew , 1, 1, "implicit __attribute__((malloc)) for C++'s new operators")
169LANGOPT(SizedDeallocation , 1, 0, "enable sized deallocation functions")
170BENIGN_LANGOPT(ElideConstructors , 1, 1, "C++ copy constructor elision")
171BENIGN_LANGOPT(DumpRecordLayouts , 1, 0, "dumping the layout of IRgen'd records")
172BENIGN_LANGOPT(DumpRecordLayoutsSimple , 1, 0, "dumping the layout of IRgen'd records in a simple form")
173BENIGN_LANGOPT(DumpVTableLayouts , 1, 0, "dumping the layouts of emitted vtables")
174LANGOPT(NoConstantCFStrings , 1, 0, "no constant CoreFoundation strings")
175BENIGN_LANGOPT(InlineVisibilityHidden , 1, 0, "hidden default visibility for inline C++ methods")
176BENIGN_LANGOPT(ParseUnknownAnytype, 1, 0, "__unknown_anytype")
177BENIGN_LANGOPT(DebuggerSupport , 1, 0, "debugger support")
178BENIGN_LANGOPT(DebuggerCastResultToId, 1, 0, "for 'po' in the debugger, cast the result to id if it is of unknown type")
179BENIGN_LANGOPT(DebuggerObjCLiteral , 1, 0, "debugger Objective-C literals and subscripting support")
180
181BENIGN_LANGOPT(SpellChecking , 1, 1, "spell-checking")
182LANGOPT(SinglePrecisionConstants , 1, 0, "treating double-precision floating point constants as single precision constants")
183LANGOPT(FastRelaxedMath , 1, 0, "OpenCL fast relaxed math")
184LANGOPT(DefaultFPContract , 1, 0, "FP_CONTRACT")
185LANGOPT(NoBitFieldTypeAlign , 1, 0, "bit-field type alignment")
186LANGOPT(HexagonQdsp6Compat , 1, 0, "hexagon-qdsp6 backward compatibility")
187LANGOPT(ObjCAutoRefCount , 1, 0, "Objective-C automated reference counting")
188LANGOPT(ObjCARCWeak         , 1, 0, "__weak support in the ARC runtime")
189LANGOPT(ObjCSubscriptingLegacyRuntime         , 1, 0, "Subscripting support in legacy ObjectiveC runtime")
190LANGOPT(FakeAddressSpaceMap , 1, 0, "OpenCL fake address space map")
191ENUM_LANGOPT(AddressSpaceMapMangling , AddrSpaceMapMangling, 2, ASMM_Target, "OpenCL address space map mangling mode")
192
193LANGOPT(MRTD , 1, 0, "-mrtd calling convention")
194BENIGN_LANGOPT(DelayedTemplateParsing , 1, 0, "delayed template parsing")
195LANGOPT(BlocksRuntimeOptional , 1, 0, "optional blocks runtime")
196
197ENUM_LANGOPT(GC, GCMode, 2, NonGC, "Objective-C Garbage Collection mode")
198ENUM_LANGOPT(ValueVisibilityMode, Visibility, 3, DefaultVisibility,
199             "value symbol visibility")
200ENUM_LANGOPT(TypeVisibilityMode, Visibility, 3, DefaultVisibility,
201             "type symbol visibility")
202ENUM_LANGOPT(StackProtector, StackProtectorMode, 2, SSPOff,
203             "stack protector mode")
204ENUM_LANGOPT(SignedOverflowBehavior, SignedOverflowBehaviorTy, 2, SOB_Undefined,
205             "signed integer overflow handling")
206
207BENIGN_LANGOPT(ArrowDepth, 32, 256,
208               "maximum number of operator->s to follow")
209BENIGN_LANGOPT(InstantiationDepth, 32, 256,
210               "maximum template instantiation depth")
211BENIGN_LANGOPT(ConstexprCallDepth, 32, 512,
212               "maximum constexpr call depth")
213BENIGN_LANGOPT(ConstexprStepLimit, 32, 1048576,
214               "maximum constexpr evaluation steps")
215BENIGN_LANGOPT(BracketDepth, 32, 256,
216               "maximum bracket nesting depth")
217BENIGN_LANGOPT(NumLargeByValueCopy, 32, 0,
218        "if non-zero, warn about parameter or return Warn if parameter/return value is larger in bytes than this setting. 0 is no check.")
219VALUE_LANGOPT(MSCompatibilityVersion, 32, 0, "Microsoft Visual C/C++ Version")
220VALUE_LANGOPT(VtorDispMode, 2, 1, "How many vtordisps to insert")
221
222LANGOPT(ApplePragmaPack, 1, 0, "Apple gcc-compatible #pragma pack handling")
223
224LANGOPT(RetainCommentsFromSystemHeaders, 1, 0, "retain documentation comments from system headers in the AST")
225
226LANGOPT(SanitizeAddressFieldPadding, 2, 0, "controls how aggressive is ASan "
227                                           "field padding (0: none, 1:least "
228                                           "aggressive, 2: more aggressive)")
229
230#undef LANGOPT
231#undef COMPATIBLE_LANGOPT
232#undef BENIGN_LANGOPT
233#undef ENUM_LANGOPT
234#undef COMPATIBLE_ENUM_LANGOPT
235#undef BENIGN_ENUM_LANGOPT
236#undef VALUE_LANGOPT
237
238