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(CoverageExitBlockBeforeBody, 1, 0) ///< Whether to emit the exit block before the body blocks in GCNO files. 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(UniqueSectionNames, 1, 1) ///< Set for -funique-section-names. 44 CODEGENOPT(DisableFPElim , 1, 0) ///< Set when -fomit-frame-pointer is enabled. 45 CODEGENOPT(DisableFree , 1, 0) ///< Don't free memory. 46 CODEGENOPT(DisableGCov , 1, 0) ///< Don't run the GCov pass, for testing. 47 CODEGENOPT(DisableLLVMOpts , 1, 0) ///< Don't run any optimizations, for use in 48 ///< getting .bc files that correspond to the 49 ///< internal state before optimizations are 50 ///< done. 51 CODEGENOPT(DisableRedZone , 1, 0) ///< Set when -mno-red-zone is enabled. 52 CODEGENOPT(DisableTailCalls , 1, 0) ///< Do not emit tail calls. 53 CODEGENOPT(EmitDeclMetadata , 1, 0) ///< Emit special metadata indicating what 54 ///< Decl* various IR entities came from. 55 ///< Only useful when running CodeGen as a 56 ///< subroutine. 57 CODEGENOPT(EmitGcovArcs , 1, 0) ///< Emit coverage data files, aka. GCDA. 58 CODEGENOPT(EmitGcovNotes , 1, 0) ///< Emit coverage "notes" files, aka GCNO. 59 CODEGENOPT(EmitOpenCLArgMetadata , 1, 0) ///< Emit OpenCL kernel arg metadata. 60 /// \brief FP_CONTRACT mode (on/off/fast). 61 ENUM_CODEGENOPT(FPContractMode, FPContractModeKind, 2, FPC_On) 62 CODEGENOPT(ForbidGuardVariables , 1, 0) ///< Issue errors if C++ guard variables 63 ///< are required. 64 CODEGENOPT(FunctionSections , 1, 0) ///< Set when -ffunction-sections is enabled. 65 CODEGENOPT(InstrumentFunctions , 1, 0) ///< Set when -finstrument-functions is 66 ///< enabled. 67 CODEGENOPT(InstrumentForProfiling , 1, 0) ///< Set when -pg is enabled. 68 CODEGENOPT(LessPreciseFPMAD , 1, 0) ///< Enable less precise MAD instructions to 69 ///< be generated. 70 CODEGENOPT(MergeAllConstants , 1, 1) ///< Merge identical constants. 71 CODEGENOPT(MergeFunctions , 1, 0) ///< Set when -fmerge-functions is enabled. 72 CODEGENOPT(MSVolatile , 1, 0) ///< Set when /volatile:ms is enabled. 73 CODEGENOPT(NoCommon , 1, 0) ///< Set when -fno-common or C++ is enabled. 74 CODEGENOPT(NoDwarfDirectoryAsm , 1, 0) ///< Set when -fno-dwarf-directory-asm is 75 ///< enabled. 76 CODEGENOPT(NoExecStack , 1, 0) ///< Set when -Wa,--noexecstack is enabled. 77 CODEGENOPT(FatalWarnings , 1, 0) ///< Set when -Wa,--fatal-warnings is 78 ///< enabled. 79 CODEGENOPT(EnableSegmentedStacks , 1, 0) ///< Set when -fsplit-stack is enabled. 80 CODEGENOPT(NoImplicitFloat , 1, 0) ///< Set when -mno-implicit-float is enabled. 81 CODEGENOPT(NoInfsFPMath , 1, 0) ///< Assume FP arguments, results not +-Inf. 82 CODEGENOPT(NoSignedZeros , 1, 0) ///< Allow ignoring the signedness of FP zero 83 CODEGENOPT(ReciprocalMath , 1, 0) ///< Allow FP divisions to be reassociated. 84 CODEGENOPT(NoInline , 1, 0) ///< Set when -fno-inline is enabled. 85 ///< Disables use of the inline keyword. 86 CODEGENOPT(NoNaNsFPMath , 1, 0) ///< Assume FP arguments, results not NaN. 87 CODEGENOPT(NoZeroInitializedInBSS , 1, 0) ///< -fno-zero-initialized-in-bss. 88 /// \brief Method of Objective-C dispatch to use. 89 ENUM_CODEGENOPT(ObjCDispatchMethod, ObjCDispatchMethodKind, 2, Legacy) 90 CODEGENOPT(OmitLeafFramePointer , 1, 0) ///< Set when -momit-leaf-frame-pointer is 91 ///< enabled. 92 VALUE_CODEGENOPT(OptimizationLevel, 2, 0) ///< The -O[0-3] option specified. 93 VALUE_CODEGENOPT(OptimizeSize, 2, 0) ///< If -Os (==1) or -Oz (==2) is specified. 94 95 CODEGENOPT(ProfileInstrGenerate , 1, 0) ///< Instrument code to generate 96 ///< execution counts to use with PGO. 97 CODEGENOPT(CoverageMapping , 1, 0) ///< Generate coverage mapping regions to 98 ///< enable code coverage analysis. 99 CODEGENOPT(DumpCoverageMapping , 1, 0) ///< Dump the generated coverage mapping 100 ///< regions. 101 102 /// If -fpcc-struct-return or -freg-struct-return is specified. 103 ENUM_CODEGENOPT(StructReturnConvention, StructReturnConventionKind, 2, SRCK_Default) 104 105 CODEGENOPT(RelaxAll , 1, 0) ///< Relax all machine code instructions. 106 CODEGENOPT(RelaxedAliasing , 1, 0) ///< Set when -fno-strict-aliasing is enabled. 107 CODEGENOPT(StructPathTBAA , 1, 0) ///< Whether or not to use struct-path TBAA. 108 CODEGENOPT(SaveTempLabels , 1, 0) ///< Save temporary labels. 109 CODEGENOPT(SanitizeAddressZeroBaseShadow , 1, 0) ///< Map shadow memory at zero 110 ///< offset in AddressSanitizer. 111 CODEGENOPT(SanitizeMemoryTrackOrigins, 2, 0) ///< Enable tracking origins in 112 ///< MemorySanitizer 113 CODEGENOPT(SanitizeCoverage, 3, 0) ///< Enable sanitizer coverage instrumentation. 114 CODEGENOPT(SanitizeUndefinedTrapOnError, 1, 0) ///< Set on 115 /// -fsanitize-undefined-trap-on-error 116 CODEGENOPT(SimplifyLibCalls , 1, 1) ///< Set when -fbuiltin is enabled. 117 CODEGENOPT(SoftFloat , 1, 0) ///< -soft-float. 118 CODEGENOPT(StrictEnums , 1, 0) ///< Optimize based on strict enum definition. 119 CODEGENOPT(TimePasses , 1, 0) ///< Set when -ftime-report is enabled. 120 CODEGENOPT(UnitAtATime , 1, 1) ///< Unused. For mirroring GCC optimization 121 ///< selection. 122 CODEGENOPT(UnrollLoops , 1, 0) ///< Control whether loops are unrolled. 123 CODEGENOPT(RerollLoops , 1, 0) ///< Control whether loops are rerolled. 124 CODEGENOPT(UnsafeFPMath , 1, 0) ///< Allow unsafe floating point optzns. 125 CODEGENOPT(UnwindTables , 1, 0) ///< Emit unwind tables. 126 CODEGENOPT(VectorizeBB , 1, 0) ///< Run basic block vectorizer. 127 CODEGENOPT(VectorizeLoop , 1, 0) ///< Run loop vectorizer. 128 CODEGENOPT(VectorizeSLP , 1, 0) ///< Run SLP vectorizer. 129 130 /// Attempt to use register sized accesses to bit-fields in structures, when 131 /// possible. 132 CODEGENOPT(UseRegisterSizedBitfieldAccess , 1, 0) 133 134 CODEGENOPT(VerifyModule , 1, 1) ///< Control whether the module should be run 135 ///< through the LLVM Verifier. 136 137 CODEGENOPT(StackRealignment , 1, 0) ///< Control whether to permit stack 138 ///< realignment. 139 CODEGENOPT(UseInitArray , 1, 0) ///< Control whether to use .init_array or 140 ///< .ctors. 141 VALUE_CODEGENOPT(StackAlignment , 32, 0) ///< Overrides default stack 142 ///< alignment, if not 0. 143 VALUE_CODEGENOPT(StackProbeSize , 32, 4096) ///< Overrides default stack 144 ///< probe size, even if 0. 145 CODEGENOPT(DebugColumnInfo, 1, 0) ///< Whether or not to use column information 146 ///< in debug info. 147 148 CODEGENOPT(EmitLLVMUseLists, 1, 0) ///< Control whether to serialize use-lists. 149 150 /// The user specified number of registers to be used for integral arguments, 151 /// or 0 if unspecified. 152 VALUE_CODEGENOPT(NumRegisterParameters, 32, 0) 153 154 /// The lower bound for a buffer to be considered for stack protection. 155 VALUE_CODEGENOPT(SSPBufferSize, 32, 0) 156 157 /// The kind of generated debug info. 158 ENUM_CODEGENOPT(DebugInfo, DebugInfoKind, 3, NoDebugInfo) 159 160 /// Dwarf version. 161 VALUE_CODEGENOPT(DwarfVersion, 3, 0) 162 163 /// The kind of inlining to perform. 164 ENUM_CODEGENOPT(Inlining, InliningMethod, 2, NoInlining) 165 166 // Vector functions library to use. 167 ENUM_CODEGENOPT(VecLib, VectorLibrary, 1, NoLibrary) 168 169 /// The default TLS model to use. 170 ENUM_CODEGENOPT(DefaultTLSModel, TLSModel, 2, GeneralDynamicTLSModel) 171 172 #undef CODEGENOPT 173 #undef ENUM_CODEGENOPT 174 #undef VALUE_CODEGENOPT 175 176
