1 //===--- CodeGenOptions.def - Code generation option database ------ C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
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.
16 //===----------------------------------------------------------------------===//
18 # error Define the CODEGENOPT macro to handle language options
21 #ifndef VALUE_CODEGENOPT
22 # define VALUE_CODEGENOPT(Name, Bits, Default) \
23 CODEGENOPT(Name, Bits, Default)
26 #ifndef ENUM_CODEGENOPT
27 # define ENUM_CODEGENOPT(Name, Type, Bits, Default) \
28 CODEGENOPT(Name, Bits, Default)
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
51 CODEGENOPT(DisableLLVMPasses , 1, 0) ///< Don't run any LLVM IR passes to get
52 ///< the pristine IR generated by the
54 CODEGENOPT(DisableRedZone , 1, 0) ///< Set when -mno-red-zone is enabled.
55 CODEGENOPT(DisableTailCalls , 1, 0) ///< Do not emit tail calls.
56 CODEGENOPT(EmitDeclMetadata , 1, 0) ///< Emit special metadata indicating what
57 ///< Decl* various IR entities came from.
58 ///< Only useful when running CodeGen as a
60 CODEGENOPT(EmitGcovArcs , 1, 0) ///< Emit coverage data files, aka. GCDA.
61 CODEGENOPT(EmitGcovNotes , 1, 0) ///< Emit coverage "notes" files, aka GCNO.
62 CODEGENOPT(EmitOpenCLArgMetadata , 1, 0) ///< Emit OpenCL kernel arg metadata.
63 CODEGENOPT(EmulatedTLS , 1, 0) ///< Set when -femulated-tls is enabled.
64 /// \brief FP_CONTRACT mode (on/off/fast).
65 ENUM_CODEGENOPT(FPContractMode, FPContractModeKind, 2, FPC_On)
66 CODEGENOPT(ForbidGuardVariables , 1, 0) ///< Issue errors if C++ guard variables
68 CODEGENOPT(FunctionSections , 1, 0) ///< Set when -ffunction-sections is enabled.
69 CODEGENOPT(InstrumentFunctions , 1, 0) ///< Set when -finstrument-functions is
71 CODEGENOPT(InstrumentForProfiling , 1, 0) ///< Set when -pg is enabled.
72 CODEGENOPT(LessPreciseFPMAD , 1, 0) ///< Enable less precise MAD instructions to
74 CODEGENOPT(PrepareForLTO , 1, 0) ///< Set when -flto is enabled on the
76 CODEGENOPT(EmitFunctionSummary, 1, 0) ///< Set when -flto=thin is enabled on the
78 CODEGENOPT(IncrementalLinkerCompatible, 1, 0) ///< Emit an object file which can
79 ///< be used with an incremental
81 CODEGENOPT(MergeAllConstants , 1, 1) ///< Merge identical constants.
82 CODEGENOPT(MergeFunctions , 1, 0) ///< Set when -fmerge-functions is enabled.
83 CODEGENOPT(MSVolatile , 1, 0) ///< Set when /volatile:ms is enabled.
84 CODEGENOPT(NoCommon , 1, 0) ///< Set when -fno-common or C++ is enabled.
85 CODEGENOPT(NoDwarfDirectoryAsm , 1, 0) ///< Set when -fno-dwarf-directory-asm is
87 CODEGENOPT(NoExecStack , 1, 0) ///< Set when -Wa,--noexecstack is enabled.
88 CODEGENOPT(FatalWarnings , 1, 0) ///< Set when -Wa,--fatal-warnings is
90 CODEGENOPT(EnableSegmentedStacks , 1, 0) ///< Set when -fsplit-stack is enabled.
91 CODEGENOPT(NoImplicitFloat , 1, 0) ///< Set when -mno-implicit-float is enabled.
92 CODEGENOPT(NoInfsFPMath , 1, 0) ///< Assume FP arguments, results not +-Inf.
93 CODEGENOPT(NoSignedZeros , 1, 0) ///< Allow ignoring the signedness of FP zero
94 CODEGENOPT(ReciprocalMath , 1, 0) ///< Allow FP divisions to be reassociated.
95 CODEGENOPT(NoInline , 1, 0) ///< Set when -fno-inline is enabled.
96 ///< Disables use of the inline keyword.
97 CODEGENOPT(NoNaNsFPMath , 1, 0) ///< Assume FP arguments, results not NaN.
98 CODEGENOPT(NoZeroInitializedInBSS , 1, 0) ///< -fno-zero-initialized-in-bss.
99 /// \brief Method of Objective-C dispatch to use.
100 ENUM_CODEGENOPT(ObjCDispatchMethod, ObjCDispatchMethodKind, 2, Legacy)
101 CODEGENOPT(OmitLeafFramePointer , 1, 0) ///< Set when -momit-leaf-frame-pointer is
103 VALUE_CODEGENOPT(OptimizationLevel, 2, 0) ///< The -O[0-3] option specified.
104 VALUE_CODEGENOPT(OptimizeSize, 2, 0) ///< If -Os (==1) or -Oz (==2) is specified.
106 CODEGENOPT(ProfileInstrGenerate , 1, 0) ///< Instrument code to generate
107 ///< execution counts to use with PGO.
108 CODEGENOPT(CoverageMapping , 1, 0) ///< Generate coverage mapping regions to
109 ///< enable code coverage analysis.
110 CODEGENOPT(DumpCoverageMapping , 1, 0) ///< Dump the generated coverage mapping
113 /// If -fpcc-struct-return or -freg-struct-return is specified.
114 ENUM_CODEGENOPT(StructReturnConvention, StructReturnConventionKind, 2, SRCK_Default)
116 CODEGENOPT(RelaxAll , 1, 0) ///< Relax all machine code instructions.
117 CODEGENOPT(RelaxedAliasing , 1, 0) ///< Set when -fno-strict-aliasing is enabled.
118 CODEGENOPT(StructPathTBAA , 1, 0) ///< Whether or not to use struct-path TBAA.
119 CODEGENOPT(SaveTempLabels , 1, 0) ///< Save temporary labels.
120 CODEGENOPT(SanitizeAddressZeroBaseShadow , 1, 0) ///< Map shadow memory at zero
121 ///< offset in AddressSanitizer.
122 CODEGENOPT(SanitizeMemoryTrackOrigins, 2, 0) ///< Enable tracking origins in
124 CODEGENOPT(SanitizeMemoryUseAfterDtor, 1, 0) ///< Enable use-after-delete detection
125 ///< in MemorySanitizer
126 CODEGENOPT(SanitizeCfiCrossDso, 1, 0) ///< Enable cross-dso support in CFI.
127 CODEGENOPT(SanitizeCoverageType, 2, 0) ///< Type of sanitizer coverage
128 ///< instrumentation.
129 CODEGENOPT(SanitizeCoverageIndirectCalls, 1, 0) ///< Enable sanitizer coverage
130 ///< for indirect calls.
131 CODEGENOPT(SanitizeCoverageTraceBB, 1, 0) ///< Enable basic block tracing in
132 ///< in sanitizer coverage.
133 CODEGENOPT(SanitizeCoverageTraceCmp, 1, 0) ///< Enable cmp instruction tracing
134 ///< in sanitizer coverage.
135 CODEGENOPT(SanitizeCoverage8bitCounters, 1, 0) ///< Use 8-bit frequency counters
136 ///< in sanitizer coverage.
137 CODEGENOPT(SimplifyLibCalls , 1, 1) ///< Set when -fbuiltin is enabled.
138 CODEGENOPT(SoftFloat , 1, 0) ///< -soft-float.
139 CODEGENOPT(StrictEnums , 1, 0) ///< Optimize based on strict enum definition.
140 CODEGENOPT(StrictVTablePointers, 1, 0) ///< Optimize based on the strict vtable pointers
141 CODEGENOPT(TimePasses , 1, 0) ///< Set when -ftime-report is enabled.
142 CODEGENOPT(UnitAtATime , 1, 1) ///< Unused. For mirroring GCC optimization
144 CODEGENOPT(UnrollLoops , 1, 0) ///< Control whether loops are unrolled.
145 CODEGENOPT(RerollLoops , 1, 0) ///< Control whether loops are rerolled.
146 CODEGENOPT(UnsafeFPMath , 1, 0) ///< Allow unsafe floating point optzns.
147 CODEGENOPT(UnwindTables , 1, 0) ///< Emit unwind tables.
148 CODEGENOPT(VectorizeBB , 1, 0) ///< Run basic block vectorizer.
149 CODEGENOPT(VectorizeLoop , 1, 0) ///< Run loop vectorizer.
150 CODEGENOPT(VectorizeSLP , 1, 0) ///< Run SLP vectorizer.
152 /// Attempt to use register sized accesses to bit-fields in structures, when
154 CODEGENOPT(UseRegisterSizedBitfieldAccess , 1, 0)
156 CODEGENOPT(VerifyModule , 1, 1) ///< Control whether the module should be run
157 ///< through the LLVM Verifier.
159 CODEGENOPT(StackRealignment , 1, 0) ///< Control whether to force stack
161 CODEGENOPT(UseInitArray , 1, 0) ///< Control whether to use .init_array or
163 VALUE_CODEGENOPT(StackAlignment , 32, 0) ///< Overrides default stack
164 ///< alignment, if not 0.
165 VALUE_CODEGENOPT(StackProbeSize , 32, 4096) ///< Overrides default stack
166 ///< probe size, even if 0.
167 CODEGENOPT(DebugColumnInfo, 1, 0) ///< Whether or not to use column information
170 CODEGENOPT(DebugTypeExtRefs, 1, 0) ///< Whether or not debug info should contain
171 ///< external references to a PCH or module.
173 CODEGENOPT(DebugExplicitImport, 1, 0) ///< Whether or not debug info should
174 ///< contain explicit imports for
175 ///< anonymous namespaces
177 CODEGENOPT(EmitLLVMUseLists, 1, 0) ///< Control whether to serialize use-lists.
179 /// The user specified number of registers to be used for integral arguments,
180 /// or 0 if unspecified.
181 VALUE_CODEGENOPT(NumRegisterParameters, 32, 0)
183 /// The lower bound for a buffer to be considered for stack protection.
184 VALUE_CODEGENOPT(SSPBufferSize, 32, 0)
186 /// The kind of generated debug info.
187 ENUM_CODEGENOPT(DebugInfo, DebugInfoKind, 3, NoDebugInfo)
189 /// Tune the debug info for this debugger.
190 ENUM_CODEGENOPT(DebuggerTuning, DebuggerKind, 2, DebuggerKindDefault)
192 /// Dwarf version. Version zero indicates to LLVM that no DWARF should be
194 VALUE_CODEGENOPT(DwarfVersion, 3, 0)
196 /// Whether we should emit CodeView debug information. It's possible to emit
197 /// CodeView and DWARF into the same object.
198 CODEGENOPT(EmitCodeView, 1, 0)
200 /// The kind of inlining to perform.
201 ENUM_CODEGENOPT(Inlining, InliningMethod, 2, NoInlining)
203 // Vector functions library to use.
204 ENUM_CODEGENOPT(VecLib, VectorLibrary, 1, NoLibrary)
206 /// The default TLS model to use.
207 ENUM_CODEGENOPT(DefaultTLSModel, TLSModel, 2, GeneralDynamicTLSModel)
210 #undef ENUM_CODEGENOPT
211 #undef VALUE_CODEGENOPT