//===--- CodeGenOptions.def - Code generation option database ----- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file defines the code generation options. Users of this file
// must define the CODEGENOPT macro to make use of this information.
// Optionally, the user may also define ENUM_CODEGENOPT (for options
// that have enumeration type and VALUE_CODEGENOPT is a code
// generation option that describes a value rather than a flag.
//
// AFFECTING_VALUE_CODEGENOPT is used for code generation options that can
// affect the AST.
//
//===----------------------------------------------------------------------===//
#ifndef CODEGENOPT
#  error Define the CODEGENOPT macro to handle language options
#endif

#ifndef VALUE_CODEGENOPT
#  define VALUE_CODEGENOPT(Name, Bits, Default) \
CODEGENOPT(Name, Bits, Default)
#endif

#ifndef ENUM_CODEGENOPT
#  define ENUM_CODEGENOPT(Name, Type, Bits, Default) \
CODEGENOPT(Name, Bits, Default)
#endif

#ifndef AFFECTING_VALUE_CODEGENOPT
#  define AFFECTING_VALUE_CODEGENOPT(Name, Bits, Default) \
VALUE_CODEGENOPT(Name, Bits, Default)
#endif

CODEGENOPT(DisableIntegratedAS, 1, 0) ///< -no-integrated-as
CODEGENOPT(RelaxELFRelocations, 1, 1) ///< -Wa,-mrelax-relocations={yes,no}
CODEGENOPT(AsmVerbose        , 1, 0) ///< -dA, -fverbose-asm.
CODEGENOPT(PreserveAsmComments, 1, 1) ///< -dA, -fno-preserve-as-comments.
CODEGENOPT(AssumeSaneOperatorNew , 1, 1) ///< implicit __attribute__((malloc)) operator new
CODEGENOPT(AssumeUniqueVTables , 1, 1) ///< Assume a class has only one vtable.
CODEGENOPT(Autolink          , 1, 1) ///< -fno-autolink
CODEGENOPT(AutoImport        , 1, 1) ///< -fno-auto-import
CODEGENOPT(ObjCAutoRefCountExceptions , 1, 0) ///< Whether ARC should be EH-safe.
CODEGENOPT(Backchain         , 1, 0) ///< -mbackchain
CODEGENOPT(ControlFlowGuardNoChecks  , 1, 0) ///< -cfguard-no-checks
CODEGENOPT(ControlFlowGuard  , 1, 0) ///< -cfguard
CODEGENOPT(EHContGuard       , 1, 0) ///< -ehcontguard
CODEGENOPT(CXAAtExit         , 1, 1) ///< Use __cxa_atexit for calling destructors.
CODEGENOPT(RegisterGlobalDtorsWithAtExit, 1, 1) ///< Use atexit or __cxa_atexit to register global destructors.
CODEGENOPT(CXXCtorDtorAliases, 1, 0) ///< Emit complete ctors/dtors as linker
                                     ///< aliases to base ctors when possible.
CODEGENOPT(DataSections      , 1, 0) ///< Set when -fdata-sections is enabled.
CODEGENOPT(UniqueSectionNames, 1, 1) ///< Set for -funique-section-names.
CODEGENOPT(UniqueBasicBlockSectionNames, 1, 1) ///< Set for -funique-basic-block-section-names,
                                               ///< Produce unique section names with
                                               ///< basic block sections.
CODEGENOPT(EnableAIXExtendedAltivecABI, 1, 0) ///< Set for -mabi=vec-extabi. Enables the extended Altivec ABI on AIX.
CODEGENOPT(XCOFFReadOnlyPointers, 1, 0) ///< Set for -mxcoff-roptr.
CODEGENOPT(AllTocData, 1, 0) ///< AIX -mtocdata
ENUM_CODEGENOPT(FramePointer, FramePointerKind, 2, FramePointerKind::None) /// frame-pointer: all,non-leaf,none

CODEGENOPT(ClearASTBeforeBackend , 1, 0) ///< Free the AST before running backend code generation. Only works with -disable-free.
CODEGENOPT(DisableFree       , 1, 0) ///< Don't free memory.
CODEGENOPT(DiscardValueNames , 1, 0) ///< Discard Value Names from the IR (LLVMContext flag)
CODEGENOPT(DisableLLVMPasses , 1, 0) ///< Don't run any LLVM IR passes to get
                                     ///< the pristine IR generated by the
                                     ///< frontend.
CODEGENOPT(DisableLifetimeMarkers, 1, 0) ///< Don't emit any lifetime markers
CODEGENOPT(DisableO0ImplyOptNone , 1, 0) ///< Don't annonate function with optnone at O0
CODEGENOPT(ExperimentalStrictFloatingPoint, 1, 0) ///< Enables the new, experimental
                                                  ///< strict floating point.
CODEGENOPT(EnableNoundefAttrs, 1, 0) ///< Enable emitting `noundef` attributes on IR call arguments and return values
CODEGENOPT(DebugPassManager, 1, 0) ///< Prints debug information for the new
                                   ///< pass manager.
CODEGENOPT(DisableRedZone    , 1, 0) ///< Set when -mno-red-zone is enabled.
CODEGENOPT(CallGraphSection, 1, 0) ///< Emit a call graph section into the
                                   ///< object file.
CODEGENOPT(EmitCallSiteInfo, 1, 0) ///< Emit call site info only in the case of
                                   ///< '-g' + 'O>0' level.
CODEGENOPT(IndirectTlsSegRefs, 1, 0) ///< Set when -mno-tls-direct-seg-refs
                                     ///< is specified.
CODEGENOPT(DisableTailCalls  , 1, 0) ///< Do not emit tail calls.
CODEGENOPT(NoEscapingBlockTailCalls, 1, 0) ///< Do not emit tail calls from
                                           ///< escaping blocks.
CODEGENOPT(EmitDeclMetadata  , 1, 0) ///< Emit special metadata indicating what
                                     ///< Decl* various IR entities came from.
                                     ///< Only useful when running CodeGen as a
                                     ///< subroutine.
CODEGENOPT(EmitVersionIdentMetadata , 1, 1) ///< Emit compiler version metadata.
CODEGENOPT(EmitOpenCLArgMetadata , 1, 0) ///< Emit OpenCL kernel arg metadata.
CODEGENOPT(EmulatedTLS       , 1, 0) ///< Set by default or -f[no-]emulated-tls.
/// Embed Bitcode mode (off/all/bitcode/marker).
ENUM_CODEGENOPT(EmbedBitcode, EmbedBitcodeKind, 2, Embed_Off)
/// Inline asm dialect, -masm=(att|intel)
ENUM_CODEGENOPT(InlineAsmDialect, InlineAsmDialectKind, 1, IAD_ATT)
CODEGENOPT(ForbidGuardVariables , 1, 0) ///< Issue errors if C++ guard variables
                                        ///< are required.
CODEGENOPT(FunctionSections  , 1, 0) ///< Set when -ffunction-sections is enabled.
CODEGENOPT(BBAddrMap  , 1, 0) ///< Set when -fbasic-block-address-map is enabled.
CODEGENOPT(InstrumentFunctions , 1, 0) ///< Set when -finstrument-functions is
                                       ///< enabled.
CODEGENOPT(InstrumentFunctionsAfterInlining , 1, 0) ///< Set when
                          ///< -finstrument-functions-after-inlining is enabled.
CODEGENOPT(InstrumentFunctionEntryBare , 1, 0) ///< Set when
                               ///< -finstrument-function-entry-bare is enabled.
CODEGENOPT(CFProtectionReturn , 1, 0) ///< if -fcf-protection is
                                      ///< set to full or return.
CODEGENOPT(CFProtectionBranch , 1, 0) ///< if -fcf-protection is
                                      ///< set to full or branch.
CODEGENOPT(FunctionReturnThunks, 1, 0) ///< -mfunction-return={keep|thunk-extern}
CODEGENOPT(IndirectBranchCSPrefix, 1, 0) ///< if -mindirect-branch-cs-prefix
                                         ///< is set.

CODEGENOPT(XRayInstrumentFunctions , 1, 0) ///< Set when -fxray-instrument is
                                           ///< enabled.
CODEGENOPT(StackSizeSection  , 1, 0) ///< Set when -fstack-size-section is enabled.

///< Set when -femit-compact-unwind-non-canonical is enabled.
CODEGENOPT(EmitCompactUnwindNonCanonical, 1, 0)

///< Set when -fxray-always-emit-customevents is enabled.
CODEGENOPT(XRayAlwaysEmitCustomEvents , 1, 0)

///< Set when -fxray-always-emit-typedevents is enabled.
CODEGENOPT(XRayAlwaysEmitTypedEvents , 1, 0)

///< Set when -fxray-ignore-loops is enabled.
CODEGENOPT(XRayIgnoreLoops , 1, 0)

///< Emit the XRay function index section.
CODEGENOPT(XRayFunctionIndex , 1, 1)


///< Set the minimum number of instructions in a function to determine selective
///< XRay instrumentation.
VALUE_CODEGENOPT(XRayInstructionThreshold , 32, 200)

///< Only instrument 1 in N functions, by dividing functions into N total groups and
///< instrumenting only the specified group at a time. Group numbers start at 0
///< and end at N-1.
VALUE_CODEGENOPT(XRayTotalFunctionGroups, 32, 1)
VALUE_CODEGENOPT(XRaySelectedFunctionGroup, 32, 0)

VALUE_CODEGENOPT(PatchableFunctionEntryCount , 32, 0) ///< Number of NOPs at function entry
VALUE_CODEGENOPT(PatchableFunctionEntryOffset , 32, 0)

CODEGENOPT(HotPatch, 1, 0) ///< Supports the Microsoft /HOTPATCH flag and
                           ///< generates a 'patchable-function' attribute.

CODEGENOPT(JMCInstrument, 1, 0) ///< Set when -fjmc is enabled.
CODEGENOPT(InstrumentForProfiling , 1, 0) ///< Set when -pg is enabled.
CODEGENOPT(CallFEntry , 1, 0) ///< Set when -mfentry is enabled.
CODEGENOPT(MNopMCount , 1, 0) ///< Set when -mnop-mcount is enabled.
CODEGENOPT(RecordMCount , 1, 0) ///< Set when -mrecord-mcount is enabled.
CODEGENOPT(PackedStack , 1, 0) ///< Set when -mpacked-stack is enabled.
CODEGENOPT(LessPreciseFPMAD  , 1, 0) ///< Enable less precise MAD instructions to
                                     ///< be generated.
CODEGENOPT(PrepareForLTO     , 1, 0) ///< Set when -flto is enabled on the
                                     ///< compile step.
CODEGENOPT(PrepareForThinLTO , 1, 0) ///< Set when -flto=thin is enabled on the
                                     ///< compile step.
CODEGENOPT(LTOUnit, 1, 0) ///< Emit IR to support LTO unit features (CFI, whole
                          ///< program vtable opt).
CODEGENOPT(FatLTO, 1, 0) ///< Set when -ffat-lto-objects is enabled.
CODEGENOPT(EnableSplitLTOUnit, 1, 0) ///< Enable LTO unit splitting to support
				     /// CFI and traditional whole program
				     /// devirtualization that require whole
				     /// program IR support.
CODEGENOPT(UnifiedLTO, 1, 0) ///< Use the unified LTO pipeline.
CODEGENOPT(IncrementalLinkerCompatible, 1, 0) ///< Emit an object file which can
                                              ///< be used with an incremental
                                              ///< linker.
CODEGENOPT(MergeAllConstants , 1, 1) ///< Merge identical constants.
CODEGENOPT(MergeFunctions    , 1, 0) ///< Set when -fmerge-functions is enabled.
CODEGENOPT(NoCommon          , 1, 0) ///< Set when -fno-common or C++ is enabled.
CODEGENOPT(NoExecStack       , 1, 0) ///< Set when -Wa,--noexecstack is enabled.
CODEGENOPT(FatalWarnings     , 1, 0) ///< Set when -Wa,--fatal-warnings is
                                     ///< enabled.
CODEGENOPT(NoWarn            , 1, 0) ///< Set when -Wa,--no-warn is enabled.
CODEGENOPT(NoTypeCheck       , 1, 0) ///< Set when -Wa,--no-type-check is enabled.
CODEGENOPT(MisExpect         , 1, 0) ///< Set when -Wmisexpect is enabled
CODEGENOPT(EnableSegmentedStacks , 1, 0) ///< Set when -fsplit-stack is enabled.
CODEGENOPT(StackClashProtector, 1, 0) ///< Set when -fstack-clash-protection is enabled.
CODEGENOPT(NoImplicitFloat   , 1, 0) ///< Set when -mno-implicit-float is enabled.
CODEGENOPT(NullPointerIsValid , 1, 0) ///< Assume Null pointer deference is defined.
CODEGENOPT(OpenCLCorrectlyRoundedDivSqrt, 1, 0) ///< -cl-fp32-correctly-rounded-divide-sqrt
CODEGENOPT(HIPCorrectlyRoundedDivSqrt, 1, 1) ///< -fno-hip-fp32-correctly-rounded-divide-sqrt
CODEGENOPT(HIPSaveKernelArgName, 1, 0) ///< Set when -fhip-kernel-arg-name is enabled.
CODEGENOPT(UniqueInternalLinkageNames, 1, 0) ///< Internal Linkage symbols get unique names.
CODEGENOPT(SplitMachineFunctions, 1, 0) ///< Split machine functions using profile information.
CODEGENOPT(PPCUseFullRegisterNames, 1, 0) ///< Print full register names in assembly

/// When false, this attempts to generate code as if the result of an
/// overflowing conversion matches the overflowing behavior of a target's native
/// float-to-int conversion instructions.
CODEGENOPT(StrictFloatCastOverflow, 1, 1)

CODEGENOPT(NoZeroInitializedInBSS , 1, 0) ///< -fno-zero-initialized-in-bss.
/// Method of Objective-C dispatch to use.
ENUM_CODEGENOPT(ObjCDispatchMethod, ObjCDispatchMethodKind, 2, Legacy)
/// Replace certain message sends with calls to ObjC runtime entrypoints
CODEGENOPT(ObjCConvertMessagesToRuntimeCalls , 1, 1)
CODEGENOPT(ObjCAvoidHeapifyLocalBlocks, 1, 0)


// The optimization options affect frontend options, whicn in turn do affect the AST.
AFFECTING_VALUE_CODEGENOPT(OptimizationLevel, 2, 0) ///< The -O[0-3] option specified.
AFFECTING_VALUE_CODEGENOPT(OptimizeSize, 2, 0) ///< If -Os (==1) or -Oz (==2) is specified.

CODEGENOPT(AtomicProfileUpdate , 1, 0) ///< Set -fprofile-update=atomic
/// Choose profile instrumenation kind or no instrumentation.
ENUM_CODEGENOPT(ProfileInstr, ProfileInstrKind, 2, ProfileNone)
/// Choose profile kind for PGO use compilation.
ENUM_CODEGENOPT(ProfileUse, ProfileInstrKind, 2, ProfileNone)
/// Partition functions into N groups and select only functions in group i to be
/// instrumented. Selected group numbers can be 0 to N-1 inclusive.
VALUE_CODEGENOPT(ProfileTotalFunctionGroups, 32, 1)
VALUE_CODEGENOPT(ProfileSelectedFunctionGroup, 32, 0)
CODEGENOPT(CoverageMapping , 1, 0) ///< Generate coverage mapping regions to
                                   ///< enable code coverage analysis.
CODEGENOPT(DumpCoverageMapping , 1, 0) ///< Dump the generated coverage mapping
                                       ///< regions.
CODEGENOPT(MCDCCoverage , 1, 0) ///< Enable MC/DC code coverage criteria.

  /// If -fpcc-struct-return or -freg-struct-return is specified.
ENUM_CODEGENOPT(StructReturnConvention, StructReturnConventionKind, 2, SRCK_Default)

CODEGENOPT(RelaxAll          , 1, 0) ///< Relax all machine code instructions.
CODEGENOPT(RelaxedAliasing   , 1, 0) ///< Set when -fno-strict-aliasing is enabled.
CODEGENOPT(StructPathTBAA    , 1, 0) ///< Whether or not to use struct-path TBAA.
CODEGENOPT(NewStructPathTBAA , 1, 0) ///< Whether or not to use enhanced struct-path TBAA.
CODEGENOPT(SaveTempLabels    , 1, 0) ///< Save temporary labels.
CODEGENOPT(SanitizeAddressUseAfterScope , 1, 0) ///< Enable use-after-scope detection
                                                ///< in AddressSanitizer
ENUM_CODEGENOPT(SanitizeAddressUseAfterReturn,
                llvm::AsanDetectStackUseAfterReturnMode, 2,
                llvm::AsanDetectStackUseAfterReturnMode::Runtime
                ) ///< Set detection mode for stack-use-after-return.
CODEGENOPT(SanitizeAddressPoisonCustomArrayCookie, 1,
           0) ///< Enable poisoning operator new[] which is not a replaceable
              ///< global allocation function in AddressSanitizer
CODEGENOPT(SanitizeAddressGlobalsDeadStripping, 1, 0) ///< Enable linker dead stripping
                                                      ///< of globals in AddressSanitizer
CODEGENOPT(SanitizeAddressUseOdrIndicator, 1, 0) ///< Enable ODR indicator globals
CODEGENOPT(SanitizeMemoryTrackOrigins, 2, 0) ///< Enable tracking origins in
                                             ///< MemorySanitizer
ENUM_CODEGENOPT(SanitizeAddressDtor, llvm::AsanDtorKind, 2,
                llvm::AsanDtorKind::Global)  ///< Set how ASan global
                                             ///< destructors are emitted.
CODEGENOPT(SanitizeMemoryParamRetval, 1, 0) ///< Enable detection of uninitialized
                                            ///< parameters and return values
                                            ///< in MemorySanitizer
CODEGENOPT(SanitizeMemoryUseAfterDtor, 1, 0) ///< Enable use-after-delete detection
                                             ///< in MemorySanitizer
CODEGENOPT(SanitizeCfiCrossDso, 1, 0) ///< Enable cross-dso support in CFI.
CODEGENOPT(SanitizeMinimalRuntime, 1, 0) ///< Use "_minimal" sanitizer runtime for
                                         ///< diagnostics.
CODEGENOPT(SanitizeCfiICallGeneralizePointers, 1, 0) ///< Generalize pointer types in
                                                     ///< CFI icall function signatures
CODEGENOPT(SanitizeCfiICallNormalizeIntegers, 1, 0) ///< Normalize integer types in
                                                    ///< CFI icall function signatures
CODEGENOPT(SanitizeCfiCanonicalJumpTables, 1, 0) ///< Make jump table symbols canonical
                                                 ///< instead of creating a local jump table.
CODEGENOPT(SanitizeCoverageType, 2, 0) ///< Type of sanitizer coverage
                                       ///< instrumentation.
CODEGENOPT(SanitizeCoverageIndirectCalls, 1, 0) ///< Enable sanitizer coverage
                                                ///< for indirect calls.
CODEGENOPT(SanitizeCoverageTraceBB, 1, 0) ///< Enable basic block tracing in
                                          ///< in sanitizer coverage.
CODEGENOPT(SanitizeCoverageTraceCmp, 1, 0) ///< Enable cmp instruction tracing
                                           ///< in sanitizer coverage.
CODEGENOPT(SanitizeCoverageTraceDiv, 1, 0) ///< Enable div instruction tracing
                                           ///< in sanitizer coverage.
CODEGENOPT(SanitizeCoverageTraceGep, 1, 0) ///< Enable GEP instruction tracing
                                           ///< in sanitizer coverage.
CODEGENOPT(SanitizeCoverage8bitCounters, 1, 0) ///< Use 8-bit frequency counters
                                               ///< in sanitizer coverage.
CODEGENOPT(SanitizeCoverageTracePC, 1, 0) ///< Enable PC tracing
                                          ///< in sanitizer coverage.
CODEGENOPT(SanitizeCoverageTracePCGuard, 1, 0) ///< Enable PC tracing with guard
                                               ///< in sanitizer coverage.
CODEGENOPT(SanitizeCoverageInline8bitCounters, 1, 0) ///< Use inline 8bit counters.
CODEGENOPT(SanitizeCoverageInlineBoolFlag, 1, 0) ///< Use inline bool flag.
CODEGENOPT(SanitizeCoveragePCTable, 1, 0) ///< Create a PC Table.
CODEGENOPT(SanitizeCoverageControlFlow, 1, 0) ///< Collect control flow
CODEGENOPT(SanitizeCoverageNoPrune, 1, 0) ///< Disable coverage pruning.
CODEGENOPT(SanitizeCoverageStackDepth, 1, 0) ///< Enable max stack depth tracing
CODEGENOPT(SanitizeCoverageTraceLoads, 1, 0) ///< Enable tracing of loads.
CODEGENOPT(SanitizeCoverageTraceStores, 1, 0) ///< Enable tracing of stores.
CODEGENOPT(SanitizeBinaryMetadataCovered, 1, 0) ///< Emit PCs for covered functions.
CODEGENOPT(SanitizeBinaryMetadataAtomics, 1, 0) ///< Emit PCs for atomic operations.
CODEGENOPT(SanitizeBinaryMetadataUAR, 1, 0) ///< Emit PCs for start of functions
                                            ///< that are subject for use-after-return checking.
CODEGENOPT(SanitizeStats     , 1, 0) ///< Collect statistics for sanitizers.
CODEGENOPT(SimplifyLibCalls  , 1, 1) ///< Set when -fbuiltin is enabled.
CODEGENOPT(SoftFloat         , 1, 0) ///< -soft-float.
CODEGENOPT(SpeculativeLoadHardening, 1, 0) ///< Enable speculative load hardening.
CODEGENOPT(FineGrainedBitfieldAccesses, 1, 0) ///< Enable fine-grained bitfield accesses.
CODEGENOPT(StrictEnums       , 1, 0) ///< Optimize based on strict enum definition.
CODEGENOPT(StrictVTablePointers, 1, 0) ///< Optimize based on the strict vtable pointers
CODEGENOPT(TimePasses        , 1, 0) ///< Set when -ftime-report or -ftime-report= is enabled.
CODEGENOPT(TimePassesPerRun  , 1, 0) ///< Set when -ftime-report=per-pass-run is enabled.
CODEGENOPT(TimeTrace         , 1, 0) ///< Set when -ftime-trace is enabled.
VALUE_CODEGENOPT(TimeTraceGranularity, 32, 500) ///< Minimum time granularity (in microseconds),
                                               ///< traced by time profiler
CODEGENOPT(UnrollLoops       , 1, 0) ///< Control whether loops are unrolled.
CODEGENOPT(RerollLoops       , 1, 0) ///< Control whether loops are rerolled.
CODEGENOPT(NoUseJumpTables   , 1, 0) ///< Set when -fno-jump-tables is enabled.
VALUE_CODEGENOPT(UnwindTables, 2, 0) ///< Unwind tables (1) or asynchronous unwind tables (2)
CODEGENOPT(VectorizeLoop     , 1, 0) ///< Run loop vectorizer.
CODEGENOPT(VectorizeSLP      , 1, 0) ///< Run SLP vectorizer.
CODEGENOPT(ProfileSampleAccurate, 1, 0) ///< Sample profile is accurate.

/// Treat loops as finite: language, always, never.
ENUM_CODEGENOPT(FiniteLoops, FiniteLoopsKind, 2, FiniteLoopsKind::Language)

  /// Attempt to use register sized accesses to bit-fields in structures, when
  /// possible.
CODEGENOPT(UseRegisterSizedBitfieldAccess , 1, 0)

CODEGENOPT(VerifyModule      , 1, 1) ///< Control whether the module should be run
                                     ///< through the LLVM Verifier.
CODEGENOPT(VerifyEach        , 1, 1) ///< Control whether the LLVM verifier
                                     ///< should run after every pass.

CODEGENOPT(StackRealignment  , 1, 0) ///< Control whether to force stack
                                     ///< realignment.
CODEGENOPT(UseInitArray      , 1, 0) ///< Control whether to use .init_array or
                                     ///< .ctors.
VALUE_CODEGENOPT(LoopAlignment     , 32, 0) ///< Overrides default loop
                                            ///< alignment, if not 0.
VALUE_CODEGENOPT(StackAlignment    , 32, 0) ///< Overrides default stack
                                            ///< alignment, if not 0.
VALUE_CODEGENOPT(StackProbeSize    , 32, 4096) ///< Overrides default stack
                                               ///< probe size, even if 0.
VALUE_CODEGENOPT(WarnStackSize     , 32, UINT_MAX) ///< Set via -fwarn-stack-size.
CODEGENOPT(NoStackArgProbe, 1, 0) ///< Set when -mno-stack-arg-probe is used
CODEGENOPT(EmitLLVMUseLists, 1, 0) ///< Control whether to serialize use-lists.

CODEGENOPT(WholeProgramVTables, 1, 0) ///< Whether to apply whole-program
                                      ///  vtable optimization.

CODEGENOPT(VirtualFunctionElimination, 1, 0) ///< Whether to apply the dead
                                             /// virtual function elimination
                                             /// optimization.

/// Whether to use public LTO visibility for entities in std and stdext
/// namespaces. This is enabled by clang-cl's /MT and /MTd flags.
CODEGENOPT(LTOVisibilityPublicStd, 1, 0)

/// The user specified number of registers to be used for integral arguments,
/// or 0 if unspecified.
VALUE_CODEGENOPT(NumRegisterParameters, 32, 0)

/// The threshold to put data into small data section.
VALUE_CODEGENOPT(SmallDataLimit, 32, 0)

/// The lower bound for a buffer to be considered for stack protection.
VALUE_CODEGENOPT(SSPBufferSize, 32, 0)

/// The kind of inlining to perform.
ENUM_CODEGENOPT(Inlining, InliningMethod, 2, NormalInlining)

/// The maximum stack size a function can have to be considered for inlining.
VALUE_CODEGENOPT(InlineMaxStackSize, 32, UINT_MAX)

// Vector functions library to use.
ENUM_CODEGENOPT(VecLib, llvm::driver::VectorLibrary, 3, llvm::driver::VectorLibrary::NoLibrary)

/// The default TLS model to use.
ENUM_CODEGENOPT(DefaultTLSModel, TLSModel, 2, GeneralDynamicTLSModel)

/// Whether to enable TLSDESC. AArch64 enables TLSDESC regardless of this value.
CODEGENOPT(EnableTLSDESC, 1, 0)

/// Bit size of immediate TLS offsets (0 == use the default).
VALUE_CODEGENOPT(TLSSize, 8, 0)

/// The default stack protector guard offset to use.
VALUE_CODEGENOPT(StackProtectorGuardOffset, 32, INT_MAX)

/// Number of path components to strip when emitting checks. (0 == full
/// filename)
VALUE_CODEGENOPT(EmitCheckPathComponentsToStrip, 32, 0)

/// Whether to report the hotness of the code region for optimization remarks.
CODEGENOPT(DiagnosticsWithHotness, 1, 0)

/// Whether to use direct access relocations (instead of GOT) to reference external data symbols.
CODEGENOPT(DirectAccessExternalData, 1, 0)

/// Whether we should use the undefined behaviour optimization for control flow
/// paths that reach the end of a function without executing a required return.
CODEGENOPT(StrictReturn, 1, 1)

/// Whether emit pseudo probes for sample pgo profile collection.
CODEGENOPT(PseudoProbeForProfiling, 1, 0)

/// Whether 3-component vector type is preserved.
CODEGENOPT(PreserveVec3Type, 1, 0)

CODEGENOPT(NoPLT, 1, 0)

/// Whether to emit all vtables
CODEGENOPT(ForceEmitVTables, 1, 0)

/// Whether to emit an address-significance table into the object file.
CODEGENOPT(Addrsig, 1, 0)

/// Whether to emit unused static constants.
CODEGENOPT(KeepStaticConsts, 1, 0)

/// Whether to emit all variables that have a persistent storage duration,
/// including global, static and thread local variables.
CODEGENOPT(KeepPersistentStorageVariables, 1, 0)

/// Whether to follow the AAPCS enforcing at least one read before storing to a volatile bitfield
CODEGENOPT(ForceAAPCSBitfieldLoad, 1, 0)

/// Assume that by-value parameters do not alias any other values.
CODEGENOPT(PassByValueIsNoAlias, 1, 0)

/// Whether to not follow the AAPCS that enforces volatile bit-field access width to be
/// according to the field declaring type width.
CODEGENOPT(AAPCSBitfieldWidth, 1, 1)

/// Sets the IEEE bit in the expected default floating point mode register.
/// Floating point opcodes that support exception flag gathering quiet and
/// propagate signaling NaN inputs per IEEE 754-2008 (AMDGPU Only)
CODEGENOPT(EmitIEEENaNCompliantInsts, 1, 1)

// Whether to emit Swift Async function extended frame information: auto,
// never, always.
ENUM_CODEGENOPT(SwiftAsyncFramePointer, SwiftAsyncFramePointerKind, 2,
                SwiftAsyncFramePointerKind::Always)

/// Whether to skip RAX setup when passing variable arguments (x86 only).
CODEGENOPT(SkipRaxSetup, 1, 0)

/// Whether to zero out caller-used registers before returning.
ENUM_CODEGENOPT(ZeroCallUsedRegs, llvm::ZeroCallUsedRegs::ZeroCallUsedRegsKind,
                5, llvm::ZeroCallUsedRegs::ZeroCallUsedRegsKind::Skip)

/// Modify C++ ABI to returning `this` pointer from constructors and
/// non-deleting destructors. (No effect on Microsoft ABI.)
CODEGENOPT(CtorDtorReturnThis, 1, 0)

/// FIXME: Make DebugOptions its own top-level .def file.
#include "DebugOptions.def"

#undef CODEGENOPT
#undef ENUM_CODEGENOPT
#undef VALUE_CODEGENOPT
#undef AFFECTING_VALUE_CODEGENOPT