1//===--- CodeGenOptions.def - Code generation option database ----- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This file defines the code generation options. Users of this file
10// must define the CODEGENOPT macro to make use of this information.
11// Optionally, the user may also define ENUM_CODEGENOPT (for options
12// that have enumeration type and VALUE_CODEGENOPT is a code
13// generation option that describes a value rather than a flag.
14//
15//===----------------------------------------------------------------------===//
16#ifndef CODEGENOPT
17#  error Define the CODEGENOPT macro to handle language options
18#endif
19
20#ifndef VALUE_CODEGENOPT
21#  define VALUE_CODEGENOPT(Name, Bits, Default) \
22CODEGENOPT(Name, Bits, Default)
23#endif
24
25#ifndef ENUM_CODEGENOPT
26#  define ENUM_CODEGENOPT(Name, Type, Bits, Default) \
27CODEGENOPT(Name, Bits, Default)
28#endif
29
30CODEGENOPT(DisableIntegratedAS, 1, 0) ///< -no-integrated-as
31ENUM_CODEGENOPT(CompressDebugSections, llvm::DebugCompressionType, 2,
32                llvm::DebugCompressionType::None)
33CODEGENOPT(RelaxELFRelocations, 1, 0) ///< -Wa,--mrelax-relocations
34CODEGENOPT(AsmVerbose        , 1, 0) ///< -dA, -fverbose-asm.
35CODEGENOPT(Dwarf64           , 1, 0) ///< -gdwarf64.
36CODEGENOPT(Dwarf32           , 1, 1) ///< -gdwarf32.
37CODEGENOPT(PreserveAsmComments, 1, 1) ///< -dA, -fno-preserve-as-comments.
38CODEGENOPT(AssumeSaneOperatorNew , 1, 1) ///< implicit __attribute__((malloc)) operator new
39CODEGENOPT(Autolink          , 1, 1) ///< -fno-autolink
40CODEGENOPT(ObjCAutoRefCountExceptions , 1, 0) ///< Whether ARC should be EH-safe.
41CODEGENOPT(Backchain         , 1, 0) ///< -mbackchain
42CODEGENOPT(ControlFlowGuardNoChecks  , 1, 0) ///< -cfguard-no-checks
43CODEGENOPT(ControlFlowGuard  , 1, 0) ///< -cfguard
44CODEGENOPT(EHContGuard       , 1, 0) ///< -ehcontguard
45CODEGENOPT(CXAAtExit         , 1, 1) ///< Use __cxa_atexit for calling destructors.
46CODEGENOPT(RegisterGlobalDtorsWithAtExit, 1, 1) ///< Use atexit or __cxa_atexit to register global destructors.
47CODEGENOPT(CXXCtorDtorAliases, 1, 0) ///< Emit complete ctors/dtors as linker
48                                     ///< aliases to base ctors when possible.
49CODEGENOPT(DataSections      , 1, 0) ///< Set when -fdata-sections is enabled.
50CODEGENOPT(UniqueSectionNames, 1, 1) ///< Set for -funique-section-names.
51CODEGENOPT(UniqueBasicBlockSectionNames, 1, 1) ///< Set for -funique-basic-block-section-names,
52                                               ///< Produce unique section names with
53                                               ///< basic block sections.
54CODEGENOPT(EnableAIXExtendedAltivecABI, 1, 0) ///< Set for -mabi=vec-extabi. Enables the extended Altivec ABI on AIX.
55ENUM_CODEGENOPT(FramePointer, FramePointerKind, 2, FramePointerKind::None) /// frame-pointer: all,non-leaf,none
56
57CODEGENOPT(DisableFree       , 1, 0) ///< Don't free memory.
58CODEGENOPT(DiscardValueNames , 1, 0) ///< Discard Value Names from the IR (LLVMContext flag)
59CODEGENOPT(DisableLLVMPasses , 1, 0) ///< Don't run any LLVM IR passes to get
60                                     ///< the pristine IR generated by the
61                                     ///< frontend.
62CODEGENOPT(DisableLifetimeMarkers, 1, 0) ///< Don't emit any lifetime markers
63CODEGENOPT(DisableO0ImplyOptNone , 1, 0) ///< Don't annonate function with optnone at O0
64CODEGENOPT(ExperimentalStrictFloatingPoint, 1, 0) ///< Enables the new, experimental
65                                                  ///< strict floating point.
66CODEGENOPT(EnableNoundefAttrs, 1, 0) ///< Enable emitting `noundef` attributes on IR call arguments and return values
67CODEGENOPT(LegacyPassManager, 1, 0) ///< Use the legacy pass manager.
68CODEGENOPT(DebugPassManager, 1, 0) ///< Prints debug information for the new
69                                   ///< pass manager.
70CODEGENOPT(DisableRedZone    , 1, 0) ///< Set when -mno-red-zone is enabled.
71CODEGENOPT(EmitCallSiteInfo, 1, 0) ///< Emit call site info only in the case of
72                                   ///< '-g' + 'O>0' level.
73CODEGENOPT(EnableDIPreservationVerify, 1, 0) ///< Enable di preservation verify
74                                             ///< each (it means check
75                                             ///< the original debug info
76                                             ///< metadata preservation).
77CODEGENOPT(IndirectTlsSegRefs, 1, 0) ///< Set when -mno-tls-direct-seg-refs
78                                     ///< is specified.
79CODEGENOPT(DisableTailCalls  , 1, 0) ///< Do not emit tail calls.
80CODEGENOPT(NoEscapingBlockTailCalls, 1, 0) ///< Do not emit tail calls from
81                                           ///< escaping blocks.
82CODEGENOPT(EmitDeclMetadata  , 1, 0) ///< Emit special metadata indicating what
83                                     ///< Decl* various IR entities came from.
84                                     ///< Only useful when running CodeGen as a
85                                     ///< subroutine.
86CODEGENOPT(EmitVersionIdentMetadata , 1, 1) ///< Emit compiler version metadata.
87CODEGENOPT(EmitGcovArcs      , 1, 0) ///< Emit coverage data files, aka. GCDA.
88CODEGENOPT(EmitGcovNotes     , 1, 0) ///< Emit coverage "notes" files, aka GCNO.
89CODEGENOPT(EmitOpenCLArgMetadata , 1, 0) ///< Emit OpenCL kernel arg metadata.
90CODEGENOPT(EmulatedTLS       , 1, 0) ///< Set by default or -f[no-]emulated-tls.
91CODEGENOPT(ExplicitEmulatedTLS , 1, 0) ///< Set if -f[no-]emulated-tls is used.
92/// Embed Bitcode mode (off/all/bitcode/marker).
93ENUM_CODEGENOPT(EmbedBitcode, EmbedBitcodeKind, 2, Embed_Off)
94CODEGENOPT(ForbidGuardVariables , 1, 0) ///< Issue errors if C++ guard variables
95                                        ///< are required.
96CODEGENOPT(FunctionSections  , 1, 0) ///< Set when -ffunction-sections is enabled.
97CODEGENOPT(InstrumentFunctions , 1, 0) ///< Set when -finstrument-functions is
98                                       ///< enabled.
99CODEGENOPT(InstrumentFunctionsAfterInlining , 1, 0) ///< Set when
100                          ///< -finstrument-functions-after-inlining is enabled.
101CODEGENOPT(InstrumentFunctionEntryBare , 1, 0) ///< Set when
102                               ///< -finstrument-function-entry-bare is enabled.
103CODEGENOPT(CFProtectionReturn , 1, 0) ///< if -fcf-protection is
104                                      ///< set to full or return.
105CODEGENOPT(CFProtectionBranch , 1, 0) ///< if -fcf-protection is
106                                      ///< set to full or branch.
107CODEGENOPT(XRayInstrumentFunctions , 1, 0) ///< Set when -fxray-instrument is
108                                           ///< enabled.
109CODEGENOPT(StackSizeSection  , 1, 0) ///< Set when -fstack-size-section is enabled.
110CODEGENOPT(ForceDwarfFrameSection , 1, 0) ///< Set when -fforce-dwarf-frame is
111                                          ///< enabled.
112
113///< Set when -fxray-always-emit-customevents is enabled.
114CODEGENOPT(XRayAlwaysEmitCustomEvents , 1, 0)
115
116///< Set when -fxray-always-emit-typedevents is enabled.
117CODEGENOPT(XRayAlwaysEmitTypedEvents , 1, 0)
118
119///< Set when -fxray-ignore-loops is enabled.
120CODEGENOPT(XRayIgnoreLoops , 1, 0)
121
122///< Set with -fno-xray-function-index to omit the index section.
123CODEGENOPT(XRayOmitFunctionIndex , 1, 0)
124
125
126///< Set the minimum number of instructions in a function to determine selective
127///< XRay instrumentation.
128VALUE_CODEGENOPT(XRayInstructionThreshold , 32, 200)
129
130///< Only instrument 1 in N functions, by dividing functions into N total groups and
131///< instrumenting only the specified group at a time. Group numbers start at 0
132///< and end at N-1.
133VALUE_CODEGENOPT(XRayTotalFunctionGroups, 32, 1)
134VALUE_CODEGENOPT(XRaySelectedFunctionGroup, 32, 0)
135
136VALUE_CODEGENOPT(PatchableFunctionEntryCount , 32, 0) ///< Number of NOPs at function entry
137VALUE_CODEGENOPT(PatchableFunctionEntryOffset , 32, 0)
138
139CODEGENOPT(InstrumentForProfiling , 1, 0) ///< Set when -pg is enabled.
140CODEGENOPT(CallFEntry , 1, 0) ///< Set when -mfentry is enabled.
141CODEGENOPT(MNopMCount , 1, 0) ///< Set when -mnop-mcount is enabled.
142CODEGENOPT(RecordMCount , 1, 0) ///< Set when -mrecord-mcount is enabled.
143CODEGENOPT(PackedStack , 1, 0) ///< Set when -mpacked-stack is enabled.
144CODEGENOPT(LessPreciseFPMAD  , 1, 0) ///< Enable less precise MAD instructions to
145                                     ///< be generated.
146CODEGENOPT(PrepareForLTO     , 1, 0) ///< Set when -flto is enabled on the
147                                     ///< compile step.
148CODEGENOPT(PrepareForThinLTO , 1, 0) ///< Set when -flto=thin is enabled on the
149                                     ///< compile step.
150CODEGENOPT(LTOUnit, 1, 0) ///< Emit IR to support LTO unit features (CFI, whole
151                          ///< program vtable opt).
152CODEGENOPT(EnableSplitLTOUnit, 1, 0) ///< Enable LTO unit splitting to support
153				     /// CFI and traditional whole program
154				     /// devirtualization that require whole
155				     /// program IR support.
156CODEGENOPT(IncrementalLinkerCompatible, 1, 0) ///< Emit an object file which can
157                                              ///< be used with an incremental
158                                              ///< linker.
159CODEGENOPT(MergeAllConstants , 1, 1) ///< Merge identical constants.
160CODEGENOPT(MergeFunctions    , 1, 0) ///< Set when -fmerge-functions is enabled.
161CODEGENOPT(MSVolatile        , 1, 0) ///< Set when /volatile:ms is enabled.
162CODEGENOPT(NoCommon          , 1, 0) ///< Set when -fno-common or C++ is enabled.
163CODEGENOPT(NoDwarfDirectoryAsm , 1, 0) ///< Set when -fno-dwarf-directory-asm is
164                                       ///< enabled.
165CODEGENOPT(NoExecStack       , 1, 0) ///< Set when -Wa,--noexecstack is enabled.
166CODEGENOPT(FatalWarnings     , 1, 0) ///< Set when -Wa,--fatal-warnings is
167                                     ///< enabled.
168CODEGENOPT(NoWarn            , 1, 0) ///< Set when -Wa,--no-warn is enabled.
169CODEGENOPT(EnableSegmentedStacks , 1, 0) ///< Set when -fsplit-stack is enabled.
170CODEGENOPT(NoInlineLineTables, 1, 0) ///< Whether debug info should contain
171                                     ///< inline line tables.
172CODEGENOPT(StackClashProtector, 1, 0) ///< Set when -fstack-clash-protection is enabled.
173CODEGENOPT(NoImplicitFloat   , 1, 0) ///< Set when -mno-implicit-float is enabled.
174CODEGENOPT(NullPointerIsValid , 1, 0) ///< Assume Null pointer deference is defined.
175CODEGENOPT(OpenCLCorrectlyRoundedDivSqrt, 1, 0) ///< -cl-fp32-correctly-rounded-divide-sqrt
176CODEGENOPT(HIPCorrectlyRoundedDivSqrt, 1, 1) ///< -fno-hip-fp32-correctly-rounded-divide-sqrt
177CODEGENOPT(UniqueInternalLinkageNames, 1, 0) ///< Internal Linkage symbols get unique names.
178CODEGENOPT(SplitMachineFunctions, 1, 0) ///< Split machine functions using profile information.
179
180/// When false, this attempts to generate code as if the result of an
181/// overflowing conversion matches the overflowing behavior of a target's native
182/// float-to-int conversion instructions.
183CODEGENOPT(StrictFloatCastOverflow, 1, 1)
184
185CODEGENOPT(UniformWGSize     , 1, 0) ///< -cl-uniform-work-group-size
186CODEGENOPT(NoZeroInitializedInBSS , 1, 0) ///< -fno-zero-initialized-in-bss.
187/// Method of Objective-C dispatch to use.
188ENUM_CODEGENOPT(ObjCDispatchMethod, ObjCDispatchMethodKind, 2, Legacy)
189/// Replace certain message sends with calls to ObjC runtime entrypoints
190CODEGENOPT(ObjCConvertMessagesToRuntimeCalls , 1, 1)
191CODEGENOPT(ObjCAvoidHeapifyLocalBlocks, 1, 0)
192
193VALUE_CODEGENOPT(OptimizationLevel, 2, 0) ///< The -O[0-3] option specified.
194VALUE_CODEGENOPT(OptimizeSize, 2, 0) ///< If -Os (==1) or -Oz (==2) is specified.
195
196CODEGENOPT(AtomicProfileUpdate , 1, 0) ///< Set -fprofile-update=atomic
197/// Choose profile instrumenation kind or no instrumentation.
198ENUM_CODEGENOPT(ProfileInstr, ProfileInstrKind, 2, ProfileNone)
199/// Choose profile kind for PGO use compilation.
200ENUM_CODEGENOPT(ProfileUse, ProfileInstrKind, 2, ProfileNone)
201CODEGENOPT(CoverageMapping , 1, 0) ///< Generate coverage mapping regions to
202                                   ///< enable code coverage analysis.
203CODEGENOPT(DumpCoverageMapping , 1, 0) ///< Dump the generated coverage mapping
204                                       ///< regions.
205
206  /// If -fpcc-struct-return or -freg-struct-return is specified.
207ENUM_CODEGENOPT(StructReturnConvention, StructReturnConventionKind, 2, SRCK_Default)
208
209CODEGENOPT(RelaxAll          , 1, 0) ///< Relax all machine code instructions.
210CODEGENOPT(RelaxedAliasing   , 1, 0) ///< Set when -fno-strict-aliasing is enabled.
211CODEGENOPT(StructPathTBAA    , 1, 0) ///< Whether or not to use struct-path TBAA.
212CODEGENOPT(NewStructPathTBAA , 1, 0) ///< Whether or not to use enhanced struct-path TBAA.
213CODEGENOPT(SaveTempLabels    , 1, 0) ///< Save temporary labels.
214CODEGENOPT(SanitizeAddressUseAfterScope , 1, 0) ///< Enable use-after-scope detection
215                                                ///< in AddressSanitizer
216ENUM_CODEGENOPT(SanitizeAddressUseAfterReturn,
217                llvm::AsanDetectStackUseAfterReturnMode, 2,
218                llvm::AsanDetectStackUseAfterReturnMode::Runtime
219                ) ///< Set detection mode for stack-use-after-return.
220CODEGENOPT(SanitizeAddressPoisonCustomArrayCookie, 1,
221           0) ///< Enable poisoning operator new[] which is not a replaceable
222              ///< global allocation function in AddressSanitizer
223CODEGENOPT(SanitizeAddressGlobalsDeadStripping, 1, 0) ///< Enable linker dead stripping
224                                                      ///< of globals in AddressSanitizer
225CODEGENOPT(SanitizeAddressUseOdrIndicator, 1, 0) ///< Enable ODR indicator globals
226CODEGENOPT(SanitizeMemoryTrackOrigins, 2, 0) ///< Enable tracking origins in
227                                             ///< MemorySanitizer
228ENUM_CODEGENOPT(SanitizeAddressDtor, llvm::AsanDtorKind, 2,
229                llvm::AsanDtorKind::Global)  ///< Set how ASan global
230                                             ///< destructors are emitted.
231CODEGENOPT(SanitizeMemoryUseAfterDtor, 1, 0) ///< Enable use-after-delete detection
232                                             ///< in MemorySanitizer
233CODEGENOPT(SanitizeCfiCrossDso, 1, 0) ///< Enable cross-dso support in CFI.
234CODEGENOPT(SanitizeMinimalRuntime, 1, 0) ///< Use "_minimal" sanitizer runtime for
235                                         ///< diagnostics.
236CODEGENOPT(SanitizeCfiICallGeneralizePointers, 1, 0) ///< Generalize pointer types in
237                                                     ///< CFI icall function signatures
238CODEGENOPT(SanitizeCfiCanonicalJumpTables, 1, 0) ///< Make jump table symbols canonical
239                                                 ///< instead of creating a local jump table.
240CODEGENOPT(SanitizeCoverageType, 2, 0) ///< Type of sanitizer coverage
241                                       ///< instrumentation.
242CODEGENOPT(SanitizeCoverageIndirectCalls, 1, 0) ///< Enable sanitizer coverage
243                                                ///< for indirect calls.
244CODEGENOPT(SanitizeCoverageTraceBB, 1, 0) ///< Enable basic block tracing in
245                                          ///< in sanitizer coverage.
246CODEGENOPT(SanitizeCoverageTraceCmp, 1, 0) ///< Enable cmp instruction tracing
247                                           ///< in sanitizer coverage.
248CODEGENOPT(SanitizeCoverageTraceDiv, 1, 0) ///< Enable div instruction tracing
249                                           ///< in sanitizer coverage.
250CODEGENOPT(SanitizeCoverageTraceGep, 1, 0) ///< Enable GEP instruction tracing
251                                           ///< in sanitizer coverage.
252CODEGENOPT(SanitizeCoverage8bitCounters, 1, 0) ///< Use 8-bit frequency counters
253                                               ///< in sanitizer coverage.
254CODEGENOPT(SanitizeCoverageTracePC, 1, 0) ///< Enable PC tracing
255                                          ///< in sanitizer coverage.
256CODEGENOPT(SanitizeCoverageTracePCGuard, 1, 0) ///< Enable PC tracing with guard
257                                               ///< in sanitizer coverage.
258CODEGENOPT(SanitizeCoverageInline8bitCounters, 1, 0) ///< Use inline 8bit counters.
259CODEGENOPT(SanitizeCoverageInlineBoolFlag, 1, 0) ///< Use inline bool flag.
260CODEGENOPT(SanitizeCoveragePCTable, 1, 0) ///< Create a PC Table.
261CODEGENOPT(SanitizeCoverageNoPrune, 1, 0) ///< Disable coverage pruning.
262CODEGENOPT(SanitizeCoverageStackDepth, 1, 0) ///< Enable max stack depth tracing
263CODEGENOPT(SanitizeStats     , 1, 0) ///< Collect statistics for sanitizers.
264CODEGENOPT(SimplifyLibCalls  , 1, 1) ///< Set when -fbuiltin is enabled.
265CODEGENOPT(SoftFloat         , 1, 0) ///< -soft-float.
266CODEGENOPT(SpeculativeLoadHardening, 1, 0) ///< Enable speculative load hardening.
267CODEGENOPT(FineGrainedBitfieldAccesses, 1, 0) ///< Enable fine-grained bitfield accesses.
268CODEGENOPT(StrictEnums       , 1, 0) ///< Optimize based on strict enum definition.
269CODEGENOPT(StrictVTablePointers, 1, 0) ///< Optimize based on the strict vtable pointers
270CODEGENOPT(TimePasses        , 1, 0) ///< Set when -ftime-report or -ftime-report= is enabled.
271CODEGENOPT(TimePassesPerRun  , 1, 0) ///< Set when -ftime-report=per-pass-run is enabled.
272CODEGENOPT(TimeTrace         , 1, 0) ///< Set when -ftime-trace is enabled.
273VALUE_CODEGENOPT(TimeTraceGranularity, 32, 500) ///< Minimum time granularity (in microseconds),
274                                               ///< traced by time profiler
275CODEGENOPT(UnrollLoops       , 1, 0) ///< Control whether loops are unrolled.
276CODEGENOPT(RerollLoops       , 1, 0) ///< Control whether loops are rerolled.
277CODEGENOPT(NoUseJumpTables   , 1, 0) ///< Set when -fno-jump-tables is enabled.
278VALUE_CODEGENOPT(UnwindTables, 2, 0) ///< Unwind tables (1) or asynchronous unwind tables (2)
279CODEGENOPT(VectorizeLoop     , 1, 0) ///< Run loop vectorizer.
280CODEGENOPT(VectorizeSLP      , 1, 0) ///< Run SLP vectorizer.
281CODEGENOPT(ProfileSampleAccurate, 1, 0) ///< Sample profile is accurate.
282
283/// Treat loops as finite: language, always, never.
284ENUM_CODEGENOPT(FiniteLoops, FiniteLoopsKind, 2, FiniteLoopsKind::Language)
285
286  /// Attempt to use register sized accesses to bit-fields in structures, when
287  /// possible.
288CODEGENOPT(UseRegisterSizedBitfieldAccess , 1, 0)
289
290CODEGENOPT(VerifyModule      , 1, 1) ///< Control whether the module should be run
291                                     ///< through the LLVM Verifier.
292
293CODEGENOPT(StackRealignment  , 1, 0) ///< Control whether to force stack
294                                     ///< realignment.
295CODEGENOPT(UseInitArray      , 1, 0) ///< Control whether to use .init_array or
296                                     ///< .ctors.
297VALUE_CODEGENOPT(LoopAlignment     , 32, 0) ///< Overrides default loop
298                                            ///< alignment, if not 0.
299VALUE_CODEGENOPT(StackAlignment    , 32, 0) ///< Overrides default stack
300                                            ///< alignment, if not 0.
301VALUE_CODEGENOPT(StackProbeSize    , 32, 4096) ///< Overrides default stack
302                                               ///< probe size, even if 0.
303VALUE_CODEGENOPT(WarnStackSize     , 32, UINT_MAX) ///< Set via -fwarn-stack-size.
304CODEGENOPT(NoStackArgProbe, 1, 0) ///< Set when -mno-stack-arg-probe is used
305CODEGENOPT(DebugStrictDwarf, 1, 1) ///< Whether or not to use strict DWARF info.
306CODEGENOPT(DebugColumnInfo, 1, 0) ///< Whether or not to use column information
307                                  ///< in debug info.
308
309CODEGENOPT(DebugTypeExtRefs, 1, 0) ///< Whether or not debug info should contain
310                                   ///< external references to a PCH or module.
311
312CODEGENOPT(DebugExplicitImport, 1, 0)  ///< Whether or not debug info should
313                                       ///< contain explicit imports for
314                                       ///< anonymous namespaces
315
316CODEGENOPT(SplitDwarfInlining, 1, 1) ///< Whether to include inlining info in the
317                                     ///< skeleton CU to allow for symbolication
318                                     ///< of inline stack frames without .dwo files.
319CODEGENOPT(DebugFwdTemplateParams, 1, 0) ///< Whether to emit complete
320                                         ///< template parameter descriptions in
321                                         ///< forward declarations (versus just
322                                         ///< including them in the name).
323ENUM_CODEGENOPT(DebugSimpleTemplateNames, codegenoptions::DebugTemplateNamesKind, 2, codegenoptions::DebugTemplateNamesKind::Full) ///< Whether to emit template parameters
324                                           ///< in the textual names of template
325					   ///< specializations.
326					   ///< Implies DebugFwdTemplateNames to
327					   ///< allow decorated names to be
328					   ///< reconstructed when needed.
329CODEGENOPT(EmitLLVMUseLists, 1, 0) ///< Control whether to serialize use-lists.
330
331CODEGENOPT(WholeProgramVTables, 1, 0) ///< Whether to apply whole-program
332                                      ///  vtable optimization.
333
334CODEGENOPT(VirtualFunctionElimination, 1, 0) ///< Whether to apply the dead
335                                             /// virtual function elimination
336                                             /// optimization.
337
338/// Whether to use public LTO visibility for entities in std and stdext
339/// namespaces. This is enabled by clang-cl's /MT and /MTd flags.
340CODEGENOPT(LTOVisibilityPublicStd, 1, 0)
341
342/// The user specified number of registers to be used for integral arguments,
343/// or 0 if unspecified.
344VALUE_CODEGENOPT(NumRegisterParameters, 32, 0)
345
346/// The threshold to put data into small data section.
347VALUE_CODEGENOPT(SmallDataLimit, 32, 0)
348
349/// The lower bound for a buffer to be considered for stack protection.
350VALUE_CODEGENOPT(SSPBufferSize, 32, 0)
351
352/// The kind of generated debug info.
353ENUM_CODEGENOPT(DebugInfo, codegenoptions::DebugInfoKind, 4, codegenoptions::NoDebugInfo)
354
355/// Whether to generate macro debug info.
356CODEGENOPT(MacroDebugInfo, 1, 0)
357
358/// Tune the debug info for this debugger.
359ENUM_CODEGENOPT(DebuggerTuning, llvm::DebuggerKind, 3,
360                llvm::DebuggerKind::Default)
361
362/// Dwarf version. Version zero indicates to LLVM that no DWARF should be
363/// emitted.
364VALUE_CODEGENOPT(DwarfVersion, 3, 0)
365
366/// Whether to use experimental new variable location tracking.
367CODEGENOPT(ValueTrackingVariableLocations, 1, 0)
368
369/// Whether we should emit CodeView debug information. It's possible to emit
370/// CodeView and DWARF into the same object.
371CODEGENOPT(EmitCodeView, 1, 0)
372
373/// Whether to emit the .debug$H section containing hashes of CodeView types.
374CODEGENOPT(CodeViewGHash, 1, 0)
375
376/// The kind of inlining to perform.
377ENUM_CODEGENOPT(Inlining, InliningMethod, 2, NormalInlining)
378
379// Vector functions library to use.
380ENUM_CODEGENOPT(VecLib, VectorLibrary, 3, NoLibrary)
381
382/// The default TLS model to use.
383ENUM_CODEGENOPT(DefaultTLSModel, TLSModel, 2, GeneralDynamicTLSModel)
384
385/// Bit size of immediate TLS offsets (0 == use the default).
386VALUE_CODEGENOPT(TLSSize, 8, 0)
387
388/// The default stack protector guard offset to use.
389VALUE_CODEGENOPT(StackProtectorGuardOffset, 32, INT_MAX)
390
391/// Number of path components to strip when emitting checks. (0 == full
392/// filename)
393VALUE_CODEGENOPT(EmitCheckPathComponentsToStrip, 32, 0)
394
395/// Whether to report the hotness of the code region for optimization remarks.
396CODEGENOPT(DiagnosticsWithHotness, 1, 0)
397
398/// Whether to use direct access relocations (instead of GOT) to reference external data symbols.
399CODEGENOPT(DirectAccessExternalData, 1, 0)
400
401/// Whether we should use the undefined behaviour optimization for control flow
402/// paths that reach the end of a function without executing a required return.
403CODEGENOPT(StrictReturn, 1, 1)
404
405/// Whether emit extra debug info for sample pgo profile collection.
406CODEGENOPT(DebugInfoForProfiling, 1, 0)
407
408/// Whether emit pseudo probes for sample pgo profile collection.
409CODEGENOPT(PseudoProbeForProfiling, 1, 0)
410
411/// Whether 3-component vector type is preserved.
412CODEGENOPT(PreserveVec3Type, 1, 0)
413
414/// Whether to emit .debug_gnu_pubnames section instead of .debug_pubnames.
415CODEGENOPT(DebugNameTable, 2, 0)
416
417/// Whether to use DWARF base address specifiers in .debug_ranges.
418CODEGENOPT(DebugRangesBaseAddress, 1, 0)
419
420CODEGENOPT(NoPLT, 1, 0)
421
422/// Whether to embed source in DWARF debug line section.
423CODEGENOPT(EmbedSource, 1, 0)
424
425/// Whether to emit all vtables
426CODEGENOPT(ForceEmitVTables, 1, 0)
427
428/// Whether to emit an address-significance table into the object file.
429CODEGENOPT(Addrsig, 1, 0)
430
431/// Whether to emit unused static constants.
432CODEGENOPT(KeepStaticConsts, 1, 0)
433
434/// Whether to follow the AAPCS enforcing at least one read before storing to a volatile bitfield
435CODEGENOPT(ForceAAPCSBitfieldLoad, 1, 0)
436
437/// Assume that by-value parameters do not alias any other values.
438CODEGENOPT(PassByValueIsNoAlias, 1, 0)
439
440/// Whether to not follow the AAPCS that enforces volatile bit-field access width to be
441/// according to the field declaring type width.
442CODEGENOPT(AAPCSBitfieldWidth, 1, 1)
443
444/// Sets the IEEE bit in the expected default floating point mode register.
445/// Floating point opcodes that support exception flag gathering quiet and
446/// propagate signaling NaN inputs per IEEE 754-2008 (AMDGPU Only)
447CODEGENOPT(EmitIEEENaNCompliantInsts, 1, 1)
448
449// Whether to emit Swift Async function extended frame information: auto,
450// never, always.
451ENUM_CODEGENOPT(SwiftAsyncFramePointer, SwiftAsyncFramePointerKind, 2,
452                SwiftAsyncFramePointerKind::Always)
453
454#undef CODEGENOPT
455#undef ENUM_CODEGENOPT
456#undef VALUE_CODEGENOPT
457