//===--- CodeGenOptions.def - Code generation option database ------ C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// 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(Autolink          , 1, 1) ///< -fno-autolink
CODEGENOPT(AsmVerbose        , 1, 0) ///< -dA, -fverbose-asm.
CODEGENOPT(ObjCAutoRefCountExceptions , 1, 0) ///< Whether ARC should be EH-safe.
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(CUDAIsDevice      , 1, 0) ///< Set when compiling for CUDA device.
CODEGENOPT(CXAAtExit         , 1, 1) ///< Use __cxa_atexit for calling 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(DisableFPElim     , 1, 0) ///< Set when -fomit-frame-pointer is enabled.
CODEGENOPT(DisableFree       , 1, 0) ///< Don't free memory.
CODEGENOPT(DisableGCov       , 1, 0) ///< Don't run the GCov pass, for testing.
CODEGENOPT(DisableLLVMOpts   , 1, 0) ///< Don't run any optimizations, for use in
                                     ///< getting .bc files that correspond to the
                                     ///< internal state before optimizations are
                                     ///< done.
CODEGENOPT(DisableRedZone    , 1, 0) ///< Set when -mno-red-zone is enabled.
CODEGENOPT(DisableTailCalls  , 1, 0) ///< Do not emit tail calls.
CODEGENOPT(EmitDeclMetadata  , 1, 0) ///< Emit special metadata indicating what
                                     ///< Decl* various IR entities came from. 
                                     ///< Only useful when running CodeGen as a
                                     ///< subroutine.
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.
/// \brief FP_CONTRACT mode (on/off/fast).
ENUM_CODEGENOPT(FPContractMode, FPContractModeKind, 2, FPC_On)
CODEGENOPT(ForbidGuardVariables , 1, 0) ///< Issue errors if C++ guard variables
                                        ///< are required.
CODEGENOPT(FunctionSections  , 1, 0) ///< Set when -ffunction-sections is enabled.
CODEGENOPT(HiddenWeakVTables , 1, 0) ///< Emit weak vtables, RTTI, and thunks with
                                     ///< hidden visibility.
CODEGENOPT(InstrumentFunctions , 1, 0) ///< Set when -finstrument-functions is
                                       ///< enabled.
CODEGENOPT(InstrumentForProfiling , 1, 0) ///< Set when -pg is enabled.
CODEGENOPT(LessPreciseFPMAD  , 1, 0) ///< Enable less precise MAD instructions to
                                     ///< be generated.
CODEGENOPT(MergeAllConstants , 1, 1) ///< Merge identical constants.
CODEGENOPT(NoCommon          , 1, 0) ///< Set when -fno-common or C++ is enabled.
CODEGENOPT(NoDwarf2CFIAsm    , 1, 0) ///< Set when -fno-dwarf2-cfi-asm 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(EnableSegmentedStacks , 1, 0) ///< Set when -fsplit-stack is enabled.
CODEGENOPT(NoGlobalMerge     , 1, 0) ///< Set when -mno-global-merge is enabled.
CODEGENOPT(NoImplicitFloat   , 1, 0) ///< Set when -mno-implicit-float is enabled.
CODEGENOPT(NoInfsFPMath      , 1, 0) ///< Assume FP arguments, results not +-Inf.
CODEGENOPT(NoInline          , 1, 0) ///< Set when -fno-inline is enabled. 
                                     ///< Disables use of the inline keyword.
CODEGENOPT(NoNaNsFPMath      , 1, 0) ///< Assume FP arguments, results not NaN.
CODEGENOPT(NoZeroInitializedInBSS , 1, 0) ///< -fno-zero-initialized-in-bss.
/// \brief Method of Objective-C dispatch to use.
ENUM_CODEGENOPT(ObjCDispatchMethod, ObjCDispatchMethodKind, 2, Legacy) 
CODEGENOPT(OmitLeafFramePointer , 1, 0) ///< Set when -momit-leaf-frame-pointer is
                                        ///< enabled.
VALUE_CODEGENOPT(OptimizationLevel, 3, 0) ///< The -O[0-4] option specified.
VALUE_CODEGENOPT(OptimizeSize, 2, 0) ///< If -Os (==1) or -Oz (==2) is specified.

  /// 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(SaveTempLabels    , 1, 0) ///< Save temporary labels.
CODEGENOPT(SanitizeAddressZeroBaseShadow , 1, 0) ///< Map shadow memory at zero
                                                 ///< offset in AddressSanitizer.
CODEGENOPT(SanitizeMemoryTrackOrigins, 1, 0) ///< Enable tracking origins in
                                             ///< MemorySanitizer
CODEGENOPT(SanitizeUndefinedTrapOnError, 1, 0) ///< Set on
                                               /// -fsanitize-undefined-trap-on-error
CODEGENOPT(SimplifyLibCalls  , 1, 1) ///< Set when -fbuiltin is enabled.
CODEGENOPT(SoftFloat         , 1, 0) ///< -soft-float.
CODEGENOPT(StrictEnums       , 1, 0) ///< Optimize based on strict enum definition.
CODEGENOPT(TimePasses        , 1, 0) ///< Set when -ftime-report is enabled.
CODEGENOPT(UnitAtATime       , 1, 1) ///< Unused. For mirroring GCC optimization
                                     ///< selection.
CODEGENOPT(UnrollLoops       , 1, 0) ///< Control whether loops are unrolled.
CODEGENOPT(UnsafeFPMath      , 1, 0) ///< Allow unsafe floating point optzns.
CODEGENOPT(UnwindTables      , 1, 0) ///< Emit unwind tables.
CODEGENOPT(VectorizeBB       , 1, 0) ///< Run basic block vectorizer.
CODEGENOPT(VectorizeLoop     , 1, 0) ///< Run loop vectorizer.
CODEGENOPT(VectorizeSLP      , 1, 0) ///< Run SLP vectorizer.

  /// 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 permit 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.
CODEGENOPT(DebugColumnInfo, 1, 0) ///< Whether or not to use column information
                                  ///< in debug info.

/// 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, DebugInfoKind, 2, NoDebugInfo)

/// Dwarf version.
VALUE_CODEGENOPT(DwarfVersion, 3, 0)

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

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

CODEGENOPT(SanitizeRecover, 1, 1) ///< Attempt to recover from sanitizer checks
                                  ///< by continuing execution when possible

#undef CODEGENOPT
#undef ENUM_CODEGENOPT
#undef VALUE_CODEGENOPT

