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(ClearASTBeforeBackend , 1, 0) ///< Free the AST before running backend code generation. Only works with -disable-free.
58CODEGENOPT(DisableFree       , 1, 0) ///< Don't free memory.
59CODEGENOPT(DiscardValueNames , 1, 0) ///< Discard Value Names from the IR (LLVMContext flag)
60CODEGENOPT(DisableLLVMPasses , 1, 0) ///< Don't run any LLVM IR passes to get
61                                     ///< the pristine IR generated by the
62                                     ///< frontend.
63CODEGENOPT(DisableLifetimeMarkers, 1, 0) ///< Don't emit any lifetime markers
64CODEGENOPT(DisableO0ImplyOptNone , 1, 0) ///< Don't annonate function with optnone at O0
65CODEGENOPT(ExperimentalStrictFloatingPoint, 1, 0) ///< Enables the new, experimental
66                                                  ///< strict floating point.
67CODEGENOPT(EnableNoundefAttrs, 1, 0) ///< Enable emitting `noundef` attributes on IR call arguments and return values
68CODEGENOPT(LegacyPassManager, 1, 0) ///< Use the legacy pass manager.
69CODEGENOPT(DebugPassManager, 1, 0) ///< Prints debug information for the new
70                                   ///< pass manager.
71CODEGENOPT(DisableRedZone    , 1, 0) ///< Set when -mno-red-zone is enabled.
72CODEGENOPT(EmitCallSiteInfo, 1, 0) ///< Emit call site info only in the case of
73                                   ///< '-g' + 'O>0' level.
74CODEGENOPT(EnableDIPreservationVerify, 1, 0) ///< Enable di preservation verify
75                                             ///< each (it means check
76                                             ///< the original debug info
77                                             ///< metadata preservation).
78CODEGENOPT(IndirectTlsSegRefs, 1, 0) ///< Set when -mno-tls-direct-seg-refs
79                                     ///< is specified.
80CODEGENOPT(DisableTailCalls  , 1, 0) ///< Do not emit tail calls.
81CODEGENOPT(NoEscapingBlockTailCalls, 1, 0) ///< Do not emit tail calls from
82                                           ///< escaping blocks.
83CODEGENOPT(EmitDeclMetadata  , 1, 0) ///< Emit special metadata indicating what
84                                     ///< Decl* various IR entities came from.
85                                     ///< Only useful when running CodeGen as a
86                                     ///< subroutine.
87CODEGENOPT(EmitVersionIdentMetadata , 1, 1) ///< Emit compiler version metadata.
88CODEGENOPT(EmitGcovArcs      , 1, 0) ///< Emit coverage data files, aka. GCDA.
89CODEGENOPT(EmitGcovNotes     , 1, 0) ///< Emit coverage "notes" files, aka GCNO.
90CODEGENOPT(EmitOpenCLArgMetadata , 1, 0) ///< Emit OpenCL kernel arg metadata.
91CODEGENOPT(EmulatedTLS       , 1, 0) ///< Set by default or -f[no-]emulated-tls.
92CODEGENOPT(ExplicitEmulatedTLS , 1, 0) ///< Set if -f[no-]emulated-tls is used.
93/// Embed Bitcode mode (off/all/bitcode/marker).
94ENUM_CODEGENOPT(EmbedBitcode, EmbedBitcodeKind, 2, Embed_Off)
95CODEGENOPT(ForbidGuardVariables , 1, 0) ///< Issue errors if C++ guard variables
96                                        ///< are required.
97CODEGENOPT(FunctionSections  , 1, 0) ///< Set when -ffunction-sections is enabled.
98CODEGENOPT(InstrumentFunctions , 1, 0) ///< Set when -finstrument-functions is
99                                       ///< enabled.
100CODEGENOPT(InstrumentFunctionsAfterInlining , 1, 0) ///< Set when
101                          ///< -finstrument-functions-after-inlining is enabled.
102CODEGENOPT(InstrumentFunctionEntryBare , 1, 0) ///< Set when
103                               ///< -finstrument-function-entry-bare is enabled.
104CODEGENOPT(CFProtectionReturn , 1, 0) ///< if -fcf-protection is
105                                      ///< set to full or return.
106CODEGENOPT(CFProtectionBranch , 1, 0) ///< if -fcf-protection is
107                                      ///< set to full or branch.
108CODEGENOPT(XRayInstrumentFunctions , 1, 0) ///< Set when -fxray-instrument is
109                                           ///< enabled.
110CODEGENOPT(StackSizeSection  , 1, 0) ///< Set when -fstack-size-section is enabled.
111CODEGENOPT(ForceDwarfFrameSection , 1, 0) ///< Set when -fforce-dwarf-frame is
112                                          ///< enabled.
113
114///< Set when -fxray-always-emit-customevents is enabled.
115CODEGENOPT(XRayAlwaysEmitCustomEvents , 1, 0)
116
117///< Set when -fxray-always-emit-typedevents is enabled.
118CODEGENOPT(XRayAlwaysEmitTypedEvents , 1, 0)
119
120///< Set when -fxray-ignore-loops is enabled.
121CODEGENOPT(XRayIgnoreLoops , 1, 0)
122
123///< Set with -fno-xray-function-index to omit the index section.
124CODEGENOPT(XRayOmitFunctionIndex , 1, 0)
125
126
127///< Set the minimum number of instructions in a function to determine selective
128///< XRay instrumentation.
129VALUE_CODEGENOPT(XRayInstructionThreshold , 32, 200)
130
131///< Only instrument 1 in N functions, by dividing functions into N total groups and
132///< instrumenting only the specified group at a time. Group numbers start at 0
133///< and end at N-1.
134VALUE_CODEGENOPT(XRayTotalFunctionGroups, 32, 1)
135VALUE_CODEGENOPT(XRaySelectedFunctionGroup, 32, 0)
136
137VALUE_CODEGENOPT(PatchableFunctionEntryCount , 32, 0) ///< Number of NOPs at function entry
138VALUE_CODEGENOPT(PatchableFunctionEntryOffset , 32, 0)
139
140CODEGENOPT(InstrumentForProfiling , 1, 0) ///< Set when -pg is enabled.
141CODEGENOPT(CallFEntry , 1, 0) ///< Set when -mfentry is enabled.
142CODEGENOPT(MNopMCount , 1, 0) ///< Set when -mnop-mcount is enabled.
143CODEGENOPT(RecordMCount , 1, 0) ///< Set when -mrecord-mcount is enabled.
144CODEGENOPT(PackedStack , 1, 0) ///< Set when -mpacked-stack is enabled.
145CODEGENOPT(LessPreciseFPMAD  , 1, 0) ///< Enable less precise MAD instructions to
146                                     ///< be generated.
147CODEGENOPT(PrepareForLTO     , 1, 0) ///< Set when -flto is enabled on the
148                                     ///< compile step.
149CODEGENOPT(PrepareForThinLTO , 1, 0) ///< Set when -flto=thin is enabled on the
150                                     ///< compile step.
151CODEGENOPT(LTOUnit, 1, 0) ///< Emit IR to support LTO unit features (CFI, whole
152                          ///< program vtable opt).
153CODEGENOPT(EnableSplitLTOUnit, 1, 0) ///< Enable LTO unit splitting to support
154				     /// CFI and traditional whole program
155				     /// devirtualization that require whole
156				     /// program IR support.
157CODEGENOPT(IncrementalLinkerCompatible, 1, 0) ///< Emit an object file which can
158                                              ///< be used with an incremental
159                                              ///< linker.
160CODEGENOPT(MergeAllConstants , 1, 1) ///< Merge identical constants.
161CODEGENOPT(MergeFunctions    , 1, 0) ///< Set when -fmerge-functions is enabled.
162CODEGENOPT(MSVolatile        , 1, 0) ///< Set when /volatile:ms is enabled.
163CODEGENOPT(NoCommon          , 1, 0) ///< Set when -fno-common or C++ is enabled.
164CODEGENOPT(NoDwarfDirectoryAsm , 1, 0) ///< Set when -fno-dwarf-directory-asm is
165                                       ///< enabled.
166CODEGENOPT(NoExecStack       , 1, 0) ///< Set when -Wa,--noexecstack is enabled.
167CODEGENOPT(FatalWarnings     , 1, 0) ///< Set when -Wa,--fatal-warnings is
168                                     ///< enabled.
169CODEGENOPT(NoWarn            , 1, 0) ///< Set when -Wa,--no-warn is enabled.
170CODEGENOPT(EnableSegmentedStacks , 1, 0) ///< Set when -fsplit-stack is enabled.
171CODEGENOPT(NoInlineLineTables, 1, 0) ///< Whether debug info should contain
172                                     ///< inline line tables.
173CODEGENOPT(StackClashProtector, 1, 0) ///< Set when -fstack-clash-protection is enabled.
174CODEGENOPT(NoImplicitFloat   , 1, 0) ///< Set when -mno-implicit-float is enabled.
175CODEGENOPT(NullPointerIsValid , 1, 0) ///< Assume Null pointer deference is defined.
176CODEGENOPT(OpenCLCorrectlyRoundedDivSqrt, 1, 0) ///< -cl-fp32-correctly-rounded-divide-sqrt
177CODEGENOPT(HIPCorrectlyRoundedDivSqrt, 1, 1) ///< -fno-hip-fp32-correctly-rounded-divide-sqrt
178CODEGENOPT(UniqueInternalLinkageNames, 1, 0) ///< Internal Linkage symbols get unique names.
179CODEGENOPT(SplitMachineFunctions, 1, 0) ///< Split machine functions using profile information.
180
181/// When false, this attempts to generate code as if the result of an
182/// overflowing conversion matches the overflowing behavior of a target's native
183/// float-to-int conversion instructions.
184CODEGENOPT(StrictFloatCastOverflow, 1, 1)
185
186CODEGENOPT(UniformWGSize     , 1, 0) ///< -cl-uniform-work-group-size
187CODEGENOPT(NoZeroInitializedInBSS , 1, 0) ///< -fno-zero-initialized-in-bss.
188/// Method of Objective-C dispatch to use.
189ENUM_CODEGENOPT(ObjCDispatchMethod, ObjCDispatchMethodKind, 2, Legacy)
190/// Replace certain message sends with calls to ObjC runtime entrypoints
191CODEGENOPT(ObjCConvertMessagesToRuntimeCalls , 1, 1)
192CODEGENOPT(ObjCAvoidHeapifyLocalBlocks, 1, 0)
193
194VALUE_CODEGENOPT(OptimizationLevel, 2, 0) ///< The -O[0-3] option specified.
195VALUE_CODEGENOPT(OptimizeSize, 2, 0) ///< If -Os (==1) or -Oz (==2) is specified.
196
197CODEGENOPT(AtomicProfileUpdate , 1, 0) ///< Set -fprofile-update=atomic
198/// Choose profile instrumenation kind or no instrumentation.
199ENUM_CODEGENOPT(ProfileInstr, ProfileInstrKind, 2, ProfileNone)
200/// Choose profile kind for PGO use compilation.
201ENUM_CODEGENOPT(ProfileUse, ProfileInstrKind, 2, ProfileNone)
202CODEGENOPT(CoverageMapping , 1, 0) ///< Generate coverage mapping regions to
203                                   ///< enable code coverage analysis.
204CODEGENOPT(DumpCoverageMapping , 1, 0) ///< Dump the generated coverage mapping
205                                       ///< regions.
206
207  /// If -fpcc-struct-return or -freg-struct-return is specified.
208ENUM_CODEGENOPT(StructReturnConvention, StructReturnConventionKind, 2, SRCK_Default)
209
210CODEGENOPT(RelaxAll          , 1, 0) ///< Relax all machine code instructions.
211CODEGENOPT(RelaxedAliasing   , 1, 0) ///< Set when -fno-strict-aliasing is enabled.
212CODEGENOPT(StructPathTBAA    , 1, 0) ///< Whether or not to use struct-path TBAA.
213CODEGENOPT(NewStructPathTBAA , 1, 0) ///< Whether or not to use enhanced struct-path TBAA.
214CODEGENOPT(SaveTempLabels    , 1, 0) ///< Save temporary labels.
215CODEGENOPT(SanitizeAddressUseAfterScope , 1, 0) ///< Enable use-after-scope detection
216                                                ///< in AddressSanitizer
217ENUM_CODEGENOPT(SanitizeAddressUseAfterReturn,
218                llvm::AsanDetectStackUseAfterReturnMode, 2,
219                llvm::AsanDetectStackUseAfterReturnMode::Runtime
220                ) ///< Set detection mode for stack-use-after-return.
221CODEGENOPT(SanitizeAddressPoisonCustomArrayCookie, 1,
222           0) ///< Enable poisoning operator new[] which is not a replaceable
223              ///< global allocation function in AddressSanitizer
224CODEGENOPT(SanitizeAddressGlobalsDeadStripping, 1, 0) ///< Enable linker dead stripping
225                                                      ///< of globals in AddressSanitizer
226CODEGENOPT(SanitizeAddressUseOdrIndicator, 1, 0) ///< Enable ODR indicator globals
227CODEGENOPT(SanitizeMemoryTrackOrigins, 2, 0) ///< Enable tracking origins in
228                                             ///< MemorySanitizer
229ENUM_CODEGENOPT(SanitizeAddressDtor, llvm::AsanDtorKind, 2,
230                llvm::AsanDtorKind::Global)  ///< Set how ASan global
231                                             ///< destructors are emitted.
232CODEGENOPT(SanitizeMemoryUseAfterDtor, 1, 0) ///< Enable use-after-delete detection
233                                             ///< in MemorySanitizer
234CODEGENOPT(SanitizeCfiCrossDso, 1, 0) ///< Enable cross-dso support in CFI.
235CODEGENOPT(SanitizeMinimalRuntime, 1, 0) ///< Use "_minimal" sanitizer runtime for
236                                         ///< diagnostics.
237CODEGENOPT(SanitizeCfiICallGeneralizePointers, 1, 0) ///< Generalize pointer types in
238                                                     ///< CFI icall function signatures
239CODEGENOPT(SanitizeCfiCanonicalJumpTables, 1, 0) ///< Make jump table symbols canonical
240                                                 ///< instead of creating a local jump table.
241CODEGENOPT(SanitizeCoverageType, 2, 0) ///< Type of sanitizer coverage
242                                       ///< instrumentation.
243CODEGENOPT(SanitizeCoverageIndirectCalls, 1, 0) ///< Enable sanitizer coverage
244                                                ///< for indirect calls.
245CODEGENOPT(SanitizeCoverageTraceBB, 1, 0) ///< Enable basic block tracing in
246                                          ///< in sanitizer coverage.
247CODEGENOPT(SanitizeCoverageTraceCmp, 1, 0) ///< Enable cmp instruction tracing
248                                           ///< in sanitizer coverage.
249CODEGENOPT(SanitizeCoverageTraceDiv, 1, 0) ///< Enable div instruction tracing
250                                           ///< in sanitizer coverage.
251CODEGENOPT(SanitizeCoverageTraceGep, 1, 0) ///< Enable GEP instruction tracing
252                                           ///< in sanitizer coverage.
253CODEGENOPT(SanitizeCoverage8bitCounters, 1, 0) ///< Use 8-bit frequency counters
254                                               ///< in sanitizer coverage.
255CODEGENOPT(SanitizeCoverageTracePC, 1, 0) ///< Enable PC tracing
256                                          ///< in sanitizer coverage.
257CODEGENOPT(SanitizeCoverageTracePCGuard, 1, 0) ///< Enable PC tracing with guard
258                                               ///< in sanitizer coverage.
259CODEGENOPT(SanitizeCoverageInline8bitCounters, 1, 0) ///< Use inline 8bit counters.
260CODEGENOPT(SanitizeCoverageInlineBoolFlag, 1, 0) ///< Use inline bool flag.
261CODEGENOPT(SanitizeCoveragePCTable, 1, 0) ///< Create a PC Table.
262CODEGENOPT(SanitizeCoverageNoPrune, 1, 0) ///< Disable coverage pruning.
263CODEGENOPT(SanitizeCoverageStackDepth, 1, 0) ///< Enable max stack depth tracing
264CODEGENOPT(SanitizeStats     , 1, 0) ///< Collect statistics for sanitizers.
265CODEGENOPT(SimplifyLibCalls  , 1, 1) ///< Set when -fbuiltin is enabled.
266CODEGENOPT(SoftFloat         , 1, 0) ///< -soft-float.
267CODEGENOPT(SpeculativeLoadHardening, 1, 0) ///< Enable speculative load hardening.
268CODEGENOPT(FineGrainedBitfieldAccesses, 1, 0) ///< Enable fine-grained bitfield accesses.
269CODEGENOPT(StrictEnums       , 1, 0) ///< Optimize based on strict enum definition.
270CODEGENOPT(StrictVTablePointers, 1, 0) ///< Optimize based on the strict vtable pointers
271CODEGENOPT(TimePasses        , 1, 0) ///< Set when -ftime-report or -ftime-report= is enabled.
272CODEGENOPT(TimePassesPerRun  , 1, 0) ///< Set when -ftime-report=per-pass-run is enabled.
273CODEGENOPT(TimeTrace         , 1, 0) ///< Set when -ftime-trace is enabled.
274VALUE_CODEGENOPT(TimeTraceGranularity, 32, 500) ///< Minimum time granularity (in microseconds),
275                                               ///< traced by time profiler
276CODEGENOPT(UnrollLoops       , 1, 0) ///< Control whether loops are unrolled.
277CODEGENOPT(RerollLoops       , 1, 0) ///< Control whether loops are rerolled.
278CODEGENOPT(NoUseJumpTables   , 1, 0) ///< Set when -fno-jump-tables is enabled.
279VALUE_CODEGENOPT(UnwindTables, 2, 0) ///< Unwind tables (1) or asynchronous unwind tables (2)
280CODEGENOPT(VectorizeLoop     , 1, 0) ///< Run loop vectorizer.
281CODEGENOPT(VectorizeSLP      , 1, 0) ///< Run SLP vectorizer.
282CODEGENOPT(ProfileSampleAccurate, 1, 0) ///< Sample profile is accurate.
283
284/// Treat loops as finite: language, always, never.
285ENUM_CODEGENOPT(FiniteLoops, FiniteLoopsKind, 2, FiniteLoopsKind::Language)
286
287  /// Attempt to use register sized accesses to bit-fields in structures, when
288  /// possible.
289CODEGENOPT(UseRegisterSizedBitfieldAccess , 1, 0)
290
291CODEGENOPT(VerifyModule      , 1, 1) ///< Control whether the module should be run
292                                     ///< through the LLVM Verifier.
293
294CODEGENOPT(StackRealignment  , 1, 0) ///< Control whether to force stack
295                                     ///< realignment.
296CODEGENOPT(UseInitArray      , 1, 0) ///< Control whether to use .init_array or
297                                     ///< .ctors.
298VALUE_CODEGENOPT(LoopAlignment     , 32, 0) ///< Overrides default loop
299                                            ///< alignment, if not 0.
300VALUE_CODEGENOPT(StackAlignment    , 32, 0) ///< Overrides default stack
301                                            ///< alignment, if not 0.
302VALUE_CODEGENOPT(StackProbeSize    , 32, 4096) ///< Overrides default stack
303                                               ///< probe size, even if 0.
304VALUE_CODEGENOPT(WarnStackSize     , 32, UINT_MAX) ///< Set via -fwarn-stack-size.
305CODEGENOPT(NoStackArgProbe, 1, 0) ///< Set when -mno-stack-arg-probe is used
306CODEGENOPT(DebugStrictDwarf, 1, 1) ///< Whether or not to use strict DWARF info.
307CODEGENOPT(DebugColumnInfo, 1, 0) ///< Whether or not to use column information
308                                  ///< in debug info.
309
310CODEGENOPT(DebugTypeExtRefs, 1, 0) ///< Whether or not debug info should contain
311                                   ///< external references to a PCH or module.
312
313CODEGENOPT(DebugExplicitImport, 1, 0)  ///< Whether or not debug info should
314                                       ///< contain explicit imports for
315                                       ///< anonymous namespaces
316
317CODEGENOPT(SplitDwarfInlining, 1, 1) ///< Whether to include inlining info in the
318                                     ///< skeleton CU to allow for symbolication
319                                     ///< of inline stack frames without .dwo files.
320CODEGENOPT(DebugFwdTemplateParams, 1, 0) ///< Whether to emit complete
321                                         ///< template parameter descriptions in
322                                         ///< forward declarations (versus just
323                                         ///< including them in the name).
324ENUM_CODEGENOPT(DebugSimpleTemplateNames, codegenoptions::DebugTemplateNamesKind, 2, codegenoptions::DebugTemplateNamesKind::Full) ///< Whether to emit template parameters
325                                           ///< in the textual names of template
326					   ///< specializations.
327					   ///< Implies DebugFwdTemplateNames to
328					   ///< allow decorated names to be
329					   ///< reconstructed when needed.
330CODEGENOPT(EmitLLVMUseLists, 1, 0) ///< Control whether to serialize use-lists.
331
332CODEGENOPT(WholeProgramVTables, 1, 0) ///< Whether to apply whole-program
333                                      ///  vtable optimization.
334
335CODEGENOPT(VirtualFunctionElimination, 1, 0) ///< Whether to apply the dead
336                                             /// virtual function elimination
337                                             /// optimization.
338
339/// Whether to use public LTO visibility for entities in std and stdext
340/// namespaces. This is enabled by clang-cl's /MT and /MTd flags.
341CODEGENOPT(LTOVisibilityPublicStd, 1, 0)
342
343/// The user specified number of registers to be used for integral arguments,
344/// or 0 if unspecified.
345VALUE_CODEGENOPT(NumRegisterParameters, 32, 0)
346
347/// The threshold to put data into small data section.
348VALUE_CODEGENOPT(SmallDataLimit, 32, 0)
349
350/// The lower bound for a buffer to be considered for stack protection.
351VALUE_CODEGENOPT(SSPBufferSize, 32, 0)
352
353/// The kind of generated debug info.
354ENUM_CODEGENOPT(DebugInfo, codegenoptions::DebugInfoKind, 4, codegenoptions::NoDebugInfo)
355
356/// Whether to generate macro debug info.
357CODEGENOPT(MacroDebugInfo, 1, 0)
358
359/// Tune the debug info for this debugger.
360ENUM_CODEGENOPT(DebuggerTuning, llvm::DebuggerKind, 3,
361                llvm::DebuggerKind::Default)
362
363/// Dwarf version. Version zero indicates to LLVM that no DWARF should be
364/// emitted.
365VALUE_CODEGENOPT(DwarfVersion, 3, 0)
366
367/// Whether to use experimental new variable location tracking.
368CODEGENOPT(ValueTrackingVariableLocations, 1, 0)
369
370/// Whether we should emit CodeView debug information. It's possible to emit
371/// CodeView and DWARF into the same object.
372CODEGENOPT(EmitCodeView, 1, 0)
373
374/// Whether to emit the .debug$H section containing hashes of CodeView types.
375CODEGENOPT(CodeViewGHash, 1, 0)
376
377/// The kind of inlining to perform.
378ENUM_CODEGENOPT(Inlining, InliningMethod, 2, NormalInlining)
379
380// Vector functions library to use.
381ENUM_CODEGENOPT(VecLib, VectorLibrary, 3, NoLibrary)
382
383/// The default TLS model to use.
384ENUM_CODEGENOPT(DefaultTLSModel, TLSModel, 2, GeneralDynamicTLSModel)
385
386/// Bit size of immediate TLS offsets (0 == use the default).
387VALUE_CODEGENOPT(TLSSize, 8, 0)
388
389/// The default stack protector guard offset to use.
390VALUE_CODEGENOPT(StackProtectorGuardOffset, 32, INT_MAX)
391
392/// Number of path components to strip when emitting checks. (0 == full
393/// filename)
394VALUE_CODEGENOPT(EmitCheckPathComponentsToStrip, 32, 0)
395
396/// Whether to report the hotness of the code region for optimization remarks.
397CODEGENOPT(DiagnosticsWithHotness, 1, 0)
398
399/// Whether to use direct access relocations (instead of GOT) to reference external data symbols.
400CODEGENOPT(DirectAccessExternalData, 1, 0)
401
402/// Whether we should use the undefined behaviour optimization for control flow
403/// paths that reach the end of a function without executing a required return.
404CODEGENOPT(StrictReturn, 1, 1)
405
406/// Whether emit extra debug info for sample pgo profile collection.
407CODEGENOPT(DebugInfoForProfiling, 1, 0)
408
409/// Whether emit pseudo probes for sample pgo profile collection.
410CODEGENOPT(PseudoProbeForProfiling, 1, 0)
411
412/// Whether 3-component vector type is preserved.
413CODEGENOPT(PreserveVec3Type, 1, 0)
414
415/// Whether to emit .debug_gnu_pubnames section instead of .debug_pubnames.
416CODEGENOPT(DebugNameTable, 2, 0)
417
418/// Whether to use DWARF base address specifiers in .debug_ranges.
419CODEGENOPT(DebugRangesBaseAddress, 1, 0)
420
421CODEGENOPT(NoPLT, 1, 0)
422
423/// Whether to embed source in DWARF debug line section.
424CODEGENOPT(EmbedSource, 1, 0)
425
426/// Whether to emit all vtables
427CODEGENOPT(ForceEmitVTables, 1, 0)
428
429/// Whether to emit an address-significance table into the object file.
430CODEGENOPT(Addrsig, 1, 0)
431
432/// Whether to emit unused static constants.
433CODEGENOPT(KeepStaticConsts, 1, 0)
434
435/// Whether to follow the AAPCS enforcing at least one read before storing to a volatile bitfield
436CODEGENOPT(ForceAAPCSBitfieldLoad, 1, 0)
437
438/// Assume that by-value parameters do not alias any other values.
439CODEGENOPT(PassByValueIsNoAlias, 1, 0)
440
441/// Whether to not follow the AAPCS that enforces volatile bit-field access width to be
442/// according to the field declaring type width.
443CODEGENOPT(AAPCSBitfieldWidth, 1, 1)
444
445/// Sets the IEEE bit in the expected default floating point mode register.
446/// Floating point opcodes that support exception flag gathering quiet and
447/// propagate signaling NaN inputs per IEEE 754-2008 (AMDGPU Only)
448CODEGENOPT(EmitIEEENaNCompliantInsts, 1, 1)
449
450// Whether to emit Swift Async function extended frame information: auto,
451// never, always.
452ENUM_CODEGENOPT(SwiftAsyncFramePointer, SwiftAsyncFramePointerKind, 2,
453                SwiftAsyncFramePointerKind::Always)
454
455#undef CODEGENOPT
456#undef ENUM_CODEGENOPT
457#undef VALUE_CODEGENOPT
458