1 //===--- CodeGenOptions.def - Code generation 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 code generation options. Users of this file 11 // must define the CODEGENOPT macro to make use of this information. 12 // Optionally, the user may also define ENUM_CODEGENOPT (for options 13 // that have enumeration type and VALUE_CODEGENOPT is a code 14 // generation option that describes a value rather than a flag. 15 // 16 //===----------------------------------------------------------------------===// 17 #ifndef CODEGENOPT 18 # error Define the CODEGENOPT macro to handle language options 19 #endif 20 21 #ifndef VALUE_CODEGENOPT 22 # define VALUE_CODEGENOPT(Name, Bits, Default) \ 23 CODEGENOPT(Name, Bits, Default) 24 #endif 25 26 #ifndef ENUM_CODEGENOPT 27 # define ENUM_CODEGENOPT(Name, Type, Bits, Default) \ 28 CODEGENOPT(Name, Bits, Default) 29 #endif 30 31 CODEGENOPT(DisableIntegratedAS, 1, 0) ///< -no-integrated-as 32 CODEGENOPT(CompressDebugSections, 1, 0) ///< -Wa,-compress-debug-sections 33 CODEGENOPT(Autolink , 1, 1) ///< -fno-autolink 34 CODEGENOPT(AsmVerbose , 1, 0) ///< -dA, -fverbose-asm. 35 CODEGENOPT(ObjCAutoRefCountExceptions , 1, 0) ///< Whether ARC should be EH-safe. 36 CODEGENOPT(CoverageExtraChecksum, 1, 0) ///< Whether we need a second checksum for functions in GCNO files. 37 CODEGENOPT(CoverageNoFunctionNamesInData, 1, 0) ///< Do not include function names in GCDA files. 38 CODEGENOPT(CUDAIsDevice , 1, 0) ///< Set when compiling for CUDA device. 39 CODEGENOPT(CXAAtExit , 1, 1) ///< Use __cxa_atexit for calling destructors. 40 CODEGENOPT(CXXCtorDtorAliases, 1, 0) ///< Emit complete ctors/dtors as linker 41 ///< aliases to base ctors when possible. 42 CODEGENOPT(DataSections , 1, 0) ///< Set when -fdata-sections is enabled. 43 CODEGENOPT(DisableFPElim , 1, 0) ///< Set when -fomit-frame-pointer is enabled. 44 CODEGENOPT(DisableFree , 1, 0) ///< Don't free memory. 45 CODEGENOPT(DisableGCov , 1, 0) ///< Don't run the GCov pass, for testing. 46 CODEGENOPT(DisableLLVMOpts , 1, 0) ///< Don't run any optimizations, for use in 47 ///< getting .bc files that correspond to the 48 ///< internal state before optimizations are 49 ///< done. 50 CODEGENOPT(DisableRedZone , 1, 0) ///< Set when -mno-red-zone is enabled. 51 CODEGENOPT(DisableTailCalls , 1, 0) ///< Do not emit tail calls. 52 CODEGENOPT(EmitDeclMetadata , 1, 0) ///< Emit special metadata indicating what 53 ///< Decl* various IR entities came from. 54 ///< Only useful when running CodeGen as a 55 ///< subroutine. 56 CODEGENOPT(EmitGcovArcs , 1, 0) ///< Emit coverage data files, aka. GCDA. 57 CODEGENOPT(EmitGcovNotes , 1, 0) ///< Emit coverage "notes" files, aka GCNO. 58 CODEGENOPT(EmitOpenCLArgMetadata , 1, 0) ///< Emit OpenCL kernel arg metadata. 59 /// \brief FP_CONTRACT mode (on/off/fast). 60 ENUM_CODEGENOPT(FPContractMode, FPContractModeKind, 2, FPC_On) 61 CODEGENOPT(ForbidGuardVariables , 1, 0) ///< Issue errors if C++ guard variables 62 ///< are required. 63 CODEGENOPT(FunctionSections , 1, 0) ///< Set when -ffunction-sections is enabled. 64 CODEGENOPT(InstrumentFunctions , 1, 0) ///< Set when -finstrument-functions is 65 ///< enabled. 66 CODEGENOPT(InstrumentForProfiling , 1, 0) ///< Set when -pg is enabled. 67 CODEGENOPT(LessPreciseFPMAD , 1, 0) ///< Enable less precise MAD instructions to 68 ///< be generated. 69 CODEGENOPT(MergeAllConstants , 1, 1) ///< Merge identical constants. 70 CODEGENOPT(NoCommon , 1, 0) ///< Set when -fno-common or C++ is enabled. 71 CODEGENOPT(NoDwarfDirectoryAsm , 1, 0) ///< Set when -fno-dwarf-directory-asm is 72 ///< enabled. 73 CODEGENOPT(NoExecStack , 1, 0) ///< Set when -Wa,--noexecstack is enabled. 74 CODEGENOPT(EnableSegmentedStacks , 1, 0) ///< Set when -fsplit-stack is enabled. 75 CODEGENOPT(NoGlobalMerge , 1, 0) ///< Set when -mno-global-merge is enabled. 76 CODEGENOPT(NoImplicitFloat , 1, 0) ///< Set when -mno-implicit-float is enabled. 77 CODEGENOPT(NoInfsFPMath , 1, 0) ///< Assume FP arguments, results not +-Inf. 78 CODEGENOPT(NoInline , 1, 0) ///< Set when -fno-inline is enabled. 79 ///< Disables use of the inline keyword. 80 CODEGENOPT(NoNaNsFPMath , 1, 0) ///< Assume FP arguments, results not NaN. 81 CODEGENOPT(NoZeroInitializedInBSS , 1, 0) ///< -fno-zero-initialized-in-bss. 82 /// \brief Method of Objective-C dispatch to use. 83 ENUM_CODEGENOPT(ObjCDispatchMethod, ObjCDispatchMethodKind, 2, Legacy) 84 CODEGENOPT(OmitLeafFramePointer , 1, 0) ///< Set when -momit-leaf-frame-pointer is 85 ///< enabled. 86 VALUE_CODEGENOPT(OptimizationLevel, 3, 0) ///< The -O[0-4] option specified. 87 VALUE_CODEGENOPT(OptimizeSize, 2, 0) ///< If -Os (==1) or -Oz (==2) is specified. 88 89 CODEGENOPT(ProfileInstrGenerate , 1, 0) ///< Instrument code to generate 90 ///< execution counts to use with PGO. 91 92 /// If -fpcc-struct-return or -freg-struct-return is specified. 93 ENUM_CODEGENOPT(StructReturnConvention, StructReturnConventionKind, 2, SRCK_Default) 94 95 CODEGENOPT(RelaxAll , 1, 0) ///< Relax all machine code instructions. 96 CODEGENOPT(RelaxedAliasing , 1, 0) ///< Set when -fno-strict-aliasing is enabled. 97 CODEGENOPT(StructPathTBAA , 1, 0) ///< Whether or not to use struct-path TBAA. 98 CODEGENOPT(SaveTempLabels , 1, 0) ///< Save temporary labels. 99 CODEGENOPT(SanitizeAddressZeroBaseShadow , 1, 0) ///< Map shadow memory at zero 100 ///< offset in AddressSanitizer. 101 CODEGENOPT(SanitizeMemoryTrackOrigins, 2, 0) ///< Enable tracking origins in 102 ///< MemorySanitizer 103 CODEGENOPT(SanitizeUndefinedTrapOnError, 1, 0) ///< Set on 104 /// -fsanitize-undefined-trap-on-error 105 CODEGENOPT(SimplifyLibCalls , 1, 1) ///< Set when -fbuiltin is enabled. 106 CODEGENOPT(SoftFloat , 1, 0) ///< -soft-float. 107 CODEGENOPT(StrictEnums , 1, 0) ///< Optimize based on strict enum definition. 108 CODEGENOPT(TimePasses , 1, 0) ///< Set when -ftime-report is enabled. 109 CODEGENOPT(UnitAtATime , 1, 1) ///< Unused. For mirroring GCC optimization 110 ///< selection. 111 CODEGENOPT(UnrollLoops , 1, 0) ///< Control whether loops are unrolled. 112 CODEGENOPT(RerollLoops , 1, 0) ///< Control whether loops are rerolled. 113 CODEGENOPT(UnsafeFPMath , 1, 0) ///< Allow unsafe floating point optzns. 114 CODEGENOPT(UnwindTables , 1, 0) ///< Emit unwind tables. 115 CODEGENOPT(VectorizeBB , 1, 0) ///< Run basic block vectorizer. 116 CODEGENOPT(VectorizeLoop , 1, 0) ///< Run loop vectorizer. 117 CODEGENOPT(VectorizeSLP , 1, 0) ///< Run SLP vectorizer. 118 119 /// Attempt to use register sized accesses to bit-fields in structures, when 120 /// possible. 121 CODEGENOPT(UseRegisterSizedBitfieldAccess , 1, 0) 122 123 CODEGENOPT(VerifyModule , 1, 1) ///< Control whether the module should be run 124 ///< through the LLVM Verifier. 125 126 CODEGENOPT(StackRealignment , 1, 0) ///< Control whether to permit stack 127 ///< realignment. 128 CODEGENOPT(UseInitArray , 1, 0) ///< Control whether to use .init_array or 129 ///< .ctors. 130 VALUE_CODEGENOPT(StackAlignment , 32, 0) ///< Overrides default stack 131 ///< alignment, if not 0. 132 CODEGENOPT(DebugColumnInfo, 1, 0) ///< Whether or not to use column information 133 ///< in debug info. 134 135 /// The user specified number of registers to be used for integral arguments, 136 /// or 0 if unspecified. 137 VALUE_CODEGENOPT(NumRegisterParameters, 32, 0) 138 139 /// The lower bound for a buffer to be considered for stack protection. 140 VALUE_CODEGENOPT(SSPBufferSize, 32, 0) 141 142 /// The kind of generated debug info. 143 ENUM_CODEGENOPT(DebugInfo, DebugInfoKind, 3, NoDebugInfo) 144 145 /// Dwarf version. 146 VALUE_CODEGENOPT(DwarfVersion, 3, 0) 147 148 /// The kind of inlining to perform. 149 ENUM_CODEGENOPT(Inlining, InliningMethod, 2, NoInlining) 150 151 /// The default TLS model to use. 152 ENUM_CODEGENOPT(DefaultTLSModel, TLSModel, 2, GeneralDynamicTLSModel) 153 154 CODEGENOPT(SanitizeRecover, 1, 1) ///< Attempt to recover from sanitizer checks 155 ///< by continuing execution when possible 156 157 #undef CODEGENOPT 158 #undef ENUM_CODEGENOPT 159 #undef VALUE_CODEGENOPT 160 161
