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| //===--- 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.
//
//===----------------------------------------------------------------------===//
#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
CODEGENOPT(DisableIntegratedAS, 1, 0) ///< -no-integrated-as
ENUM_CODEGENOPT(CompressDebugSections, llvm::DebugCompressionType, 2,
llvm::DebugCompressionType::None)
CODEGENOPT(RelaxELFRelocations, 1, 0) ///< -Wa,--mrelax-relocations
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(Autolink , 1, 1) ///< -fno-autolink
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(CoverageExtraChecksum, 1, 0) ///< Whether we need a second checksum for functions in GCNO files.
CODEGENOPT(CoverageNoFunctionNamesInData, 1, 0) ///< Do not include function names in GCDA files.
CODEGENOPT(CoverageExitBlockBeforeBody, 1, 0) ///< Whether to emit the exit block before the body blocks in GCNO files.
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.
ENUM_CODEGENOPT(FramePointer, FramePointerKind, 2, FramePointerKind::None) /// frame-pointer: all,non-leaf,none
CODEGENOPT(DisableFree , 1, 0) ///< Don't free memory.
CODEGENOPT(DiscardValueNames , 1, 0) ///< Discard Value Names from the IR (LLVMContext flag)
CODEGENOPT(DisableGCov , 1, 0) ///< Don't run the GCov pass, for testing.
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(ExperimentalNewPassManager, 1, 0) ///< Enables the new, experimental
///< pass manager.
CODEGENOPT(DebugPassManager, 1, 0) ///< Prints debug information for the new
///< pass manager.
CODEGENOPT(DisableRedZone , 1, 0) ///< Set when -mno-red-zone is enabled.
CODEGENOPT(EnableDebugEntryValues, 1, 0) ///< Emit call site parameter dbg info
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(EmitGcovArcs , 1, 0) ///< Emit coverage data files, aka. GCDA.
CODEGENOPT(EmitGcovNotes , 1, 0) ///< Emit coverage "notes" files, aka GCNO.
CODEGENOPT(EmitOpenCLArgMetadata , 1, 0) ///< Emit OpenCL kernel arg metadata.
CODEGENOPT(EmulatedTLS , 1, 0) ///< Set by default or -f[no-]emulated-tls.
CODEGENOPT(ExplicitEmulatedTLS , 1, 0) ///< Set if -f[no-]emulated-tls is used.
/// Embed Bitcode mode (off/all/bitcode/marker).
ENUM_CODEGENOPT(EmbedBitcode, EmbedBitcodeKind, 2, Embed_Off)
CODEGENOPT(ForbidGuardVariables , 1, 0) ///< Issue errors if C++ guard variables
///< are required.
CODEGENOPT(FunctionSections , 1, 0) ///< Set when -ffunction-sections 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(XRayInstrumentFunctions , 1, 0) ///< Set when -fxray-instrument is
///< enabled.
CODEGENOPT(StackSizeSection , 1, 0) ///< Set when -fstack-size-section is enabled.
///< 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 the minimum number of instructions in a function to determine selective
///< XRay instrumentation.
VALUE_CODEGENOPT(XRayInstructionThreshold , 32, 200)
CODEGENOPT(InstrumentForProfiling , 1, 0) ///< Set when -pg is enabled.
CODEGENOPT(CallFEntry , 1, 0) ///< Set when -mfentry 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(EnableSplitLTOUnit, 1, 0) ///< Enable LTO unit splitting to support
/// CFI and traditional whole program
/// devirtualization that require whole
/// program IR support.
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(MSVolatile , 1, 0) ///< Set when /volatile:ms is enabled.
CODEGENOPT(NoCommon , 1, 0) ///< Set when -fno-common or C++ is enabled.
CODEGENOPT(NoDwarfDirectoryAsm , 1, 0) ///< Set when -fno-dwarf-directory-asm 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(EnableSegmentedStacks , 1, 0) ///< Set when -fsplit-stack is enabled.
CODEGENOPT(NoImplicitFloat , 1, 0) ///< Set when -mno-implicit-float is enabled.
CODEGENOPT(NoInfsFPMath , 1, 0) ///< Assume FP arguments, results not +-Inf.
CODEGENOPT(NoSignedZeros , 1, 0) ///< Allow ignoring the signedness of FP zero
CODEGENOPT(NullPointerIsValid , 1, 0) ///< Assume Null pointer deference is defined.
CODEGENOPT(Reassociate , 1, 0) ///< Allow reassociation of FP math ops
CODEGENOPT(ReciprocalMath , 1, 0) ///< Allow FP divisions to be reassociated.
CODEGENOPT(NoTrappingMath , 1, 0) ///< Set when -fno-trapping-math is enabled.
CODEGENOPT(NoNaNsFPMath , 1, 0) ///< Assume FP arguments, results not NaN.
CODEGENOPT(FlushDenorm , 1, 0) ///< Allow FP denorm numbers to be flushed to zero
CODEGENOPT(CorrectlyRoundedDivSqrt, 1, 0) ///< -cl-fp32-correctly-rounded-divide-sqrt
/// 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(UniformWGSize , 1, 0) ///< -cl-uniform-work-group-size
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)
VALUE_CODEGENOPT(OptimizationLevel, 2, 0) ///< The -O[0-3] option specified.
VALUE_CODEGENOPT(OptimizeSize, 2, 0) ///< If -Os (==1) or -Oz (==2) is specified.
/// 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)
CODEGENOPT(CoverageMapping , 1, 0) ///< Generate coverage mapping regions to
///< enable code coverage analysis.
CODEGENOPT(DumpCoverageMapping , 1, 0) ///< Dump the generated coverage mapping
///< regions.
/// 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
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
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(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(SanitizeCoveragePCTable, 1, 0) ///< Create a PC Table.
CODEGENOPT(SanitizeCoverageNoPrune, 1, 0) ///< Disable coverage pruning.
CODEGENOPT(SanitizeCoverageStackDepth, 1, 0) ///< Enable max stack depth tracing
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 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.
CODEGENOPT(UnsafeFPMath , 1, 0) ///< Allow unsafe floating point optzns.
CODEGENOPT(UnwindTables , 1, 0) ///< Emit unwind tables.
CODEGENOPT(VectorizeLoop , 1, 0) ///< Run loop vectorizer.
CODEGENOPT(VectorizeSLP , 1, 0) ///< Run SLP vectorizer.
CODEGENOPT(ProfileSampleAccurate, 1, 0) ///< Sample profile is accurate.
/// 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(StackRealignment , 1, 0) ///< Control whether to force stack
///< realignment.
CODEGENOPT(UseInitArray , 1, 0) ///< Control whether to use .init_array or
///< .ctors.
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.
CODEGENOPT(NoStackArgProbe, 1, 0) ///< Set when -mno-stack-arg-probe is used
CODEGENOPT(DebugColumnInfo, 1, 0) ///< Whether or not to use column information
///< in debug info.
CODEGENOPT(DebugTypeExtRefs, 1, 0) ///< Whether or not debug info should contain
///< external references to a PCH or module.
CODEGENOPT(DebugExplicitImport, 1, 0) ///< Whether or not debug info should
///< contain explicit imports for
///< anonymous namespaces
CODEGENOPT(SplitDwarfInlining, 1, 1) ///< Whether to include inlining info in the
///< skeleton CU to allow for symbolication
///< of inline stack frames without .dwo files.
CODEGENOPT(DebugFwdTemplateParams, 1, 0) ///< Whether to emit complete
///< template parameter descriptions in
///< forward declarations (versus just
///< including them in the name).
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 lower bound for a buffer to be considered for stack protection.
VALUE_CODEGENOPT(SSPBufferSize, 32, 0)
/// The kind of generated debug info.
ENUM_CODEGENOPT(DebugInfo, codegenoptions::DebugInfoKind, 3, codegenoptions::NoDebugInfo)
/// Whether to generate macro debug info.
CODEGENOPT(MacroDebugInfo, 1, 0)
/// Tune the debug info for this debugger.
ENUM_CODEGENOPT(DebuggerTuning, llvm::DebuggerKind, 2,
llvm::DebuggerKind::Default)
/// Dwarf version. Version zero indicates to LLVM that no DWARF should be
/// emitted.
VALUE_CODEGENOPT(DwarfVersion, 3, 0)
/// Whether we should emit CodeView debug information. It's possible to emit
/// CodeView and DWARF into the same object.
CODEGENOPT(EmitCodeView, 1, 0)
/// Whether to emit the .debug$H section containing hashes of CodeView types.
CODEGENOPT(CodeViewGHash, 1, 0)
/// The kind of inlining to perform.
ENUM_CODEGENOPT(Inlining, InliningMethod, 2, NormalInlining)
// Vector functions library to use.
ENUM_CODEGENOPT(VecLib, VectorLibrary, 2, NoLibrary)
/// The default TLS model to use.
ENUM_CODEGENOPT(DefaultTLSModel, TLSModel, 2, GeneralDynamicTLSModel)
/// 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)
/// The minimum hotness value a diagnostic needs in order to be included in
/// optimization diagnostics.
VALUE_CODEGENOPT(DiagnosticsHotnessThreshold, 32, 0)
/// Whether copy relocations support is available when building as PIE.
CODEGENOPT(PIECopyRelocations, 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 extra debug info for sample pgo profile collection.
CODEGENOPT(DebugInfoForProfiling, 1, 0)
/// Whether 3-component vector type is preserved.
CODEGENOPT(PreserveVec3Type, 1, 0)
/// Whether to emit .debug_gnu_pubnames section instead of .debug_pubnames.
CODEGENOPT(DebugNameTable, 2, 0)
/// Whether to use DWARF base address specifiers in .debug_ranges.
CODEGENOPT(DebugRangesBaseAddress, 1, 0)
CODEGENOPT(NoPLT, 1, 0)
/// Whether to embed source in DWARF debug line section.
CODEGENOPT(EmbedSource, 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)
ENUM_CODEGENOPT(SignReturnAddress, SignReturnAddressScope, 2, None)
ENUM_CODEGENOPT(SignReturnAddressKey, SignReturnAddressKeyValue, 1, AKey)
CODEGENOPT(BranchTargetEnforcement, 1, 0)
/// Whether to emit unused static constants.
CODEGENOPT(KeepStaticConsts, 1, 0)
#undef CODEGENOPT
#undef ENUM_CODEGENOPT
#undef VALUE_CODEGENOPT
|