//===--- Options.td - Options for clang -----------------------------------===//
//
//                     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 options accepted by clang.
//
//===----------------------------------------------------------------------===//

// Include the common option parsing interfaces.
include "llvm/Option/OptParser.td"

/////////
// Flags

// DriverOption - The option is a "driver" option, and should not be forwarded
// to other tools.
def DriverOption : OptionFlag;

// LinkerInput - The option is a linker input.
def LinkerInput : OptionFlag;

// NoArgumentUnused - Don't report argument unused warnings for this option; this
// is useful for options like -static or -dynamic which a user may always end up
// passing, even if the platform defaults to (or only supports) that option.
def NoArgumentUnused : OptionFlag;

// Unsupported - The option is unsupported, and the driver will reject command
// lines that use it.
def Unsupported : OptionFlag;

// CoreOption - This is considered a "core" Clang option, available in both
// clang and clang-cl modes.
def CoreOption : OptionFlag;

// CLOption - This is a cl.exe compatibility option. Options with this flag
// are made available when the driver is running in CL compatibility mode.
def CLOption : OptionFlag;

// CC1Option - This option should be accepted by clang -cc1.
def CC1Option : OptionFlag;

// CC1AsOption - This option should be accepted by clang -cc1as.
def CC1AsOption : OptionFlag;

// NoDriverOption - This option should not be accepted by the driver.
def NoDriverOption : OptionFlag;

/////////
// Groups

// Meta-group for options which are only used for compilation,
// and not linking etc.
def CompileOnly_Group     : OptionGroup<"<CompileOnly group>">;

def Action_Group          : OptionGroup<"<action group>">;

def I_Group               : OptionGroup<"<I group>">, Group<CompileOnly_Group>;
def M_Group               : OptionGroup<"<M group>">, Group<CompileOnly_Group>;
def T_Group               : OptionGroup<"<T group>">;
def O_Group               : OptionGroup<"<O group>">, Group<CompileOnly_Group>;
def R_Group               : OptionGroup<"<R group>">, Group<CompileOnly_Group>;
def R_value_Group         : OptionGroup<"<R (with value) group>">, Group<R_Group>;
def W_Group               : OptionGroup<"<W group>">, Group<CompileOnly_Group>;
def W_value_Group         : OptionGroup<"<W (with value) group>">, Group<W_Group>;
def d_Group               : OptionGroup<"<d group>">;
def f_Group               : OptionGroup<"<f group>">, Group<CompileOnly_Group>;
def f_clang_Group         : OptionGroup<"<f (clang-only) group>">, Group<CompileOnly_Group>;
def g_Group               : OptionGroup<"<g group>">;
def gN_Group              : OptionGroup<"<gN group>">, Group<g_Group>;
def ggdbN_Group           : OptionGroup<"<ggdbN group>">, Group<gN_Group>;
def gTune_Group           : OptionGroup<"<gTune group>">, Group<g_Group>;
def g_flags_Group         : OptionGroup<"<g flags group>">;
def i_Group               : OptionGroup<"<i group>">, Group<CompileOnly_Group>;
def clang_i_Group         : OptionGroup<"<clang i group>">, Group<i_Group>;
def m_Group               : OptionGroup<"<m group>">, Group<CompileOnly_Group>;
def opencl_Group          : OptionGroup<"<opencl group>">, Group<CompileOnly_Group>;

// Feature groups - these take command line options that correspond directly to
// target specific features and can be translated directly from command line
// options.
def m_x86_Features_Group : OptionGroup<"<x86 features group>">,
                           Group<m_Group>,
                           Flags<[CoreOption]>;
def m_hexagon_Features_Group : OptionGroup<"<hexagon features group>">,
                               Group<m_Group>;
def m_arm_Features_Group : OptionGroup<"<arm features group>">,
                           Group<m_Group>;
def m_aarch64_Features_Group : OptionGroup<"<aarch64 features group>">,
                               Group<m_Group>;
def m_ppc_Features_Group : OptionGroup<"<ppc features group>">,
                           Group<m_Group>;
def m_wasm_Features_Group : OptionGroup<"<wasm features group>">,
                            Group<m_Group>;
def m_amdgpu_Features_Group : OptionGroup<"<amdgpu features group>">,
                              Group<m_Group>;

def m_libc_Group          : OptionGroup<"<m libc group>">, Group<m_Group>;
def u_Group               : OptionGroup<"<u group>">;

def pedantic_Group        : OptionGroup<"<pedantic group>">,
  Group<CompileOnly_Group>;
def reserved_lib_Group   : OptionGroup<"<reserved libs group>">;

// Temporary groups for clang options which we know we don't support,
// but don't want to verbosely warn the user about.
def clang_ignored_f_Group : OptionGroup<"<clang ignored f group>">,
  Group<f_Group>;
def clang_ignored_m_Group : OptionGroup<"<clang ignored m group>">,
  Group<m_Group>;

// Group that ignores all gcc optimizations that won't be implemented
def clang_ignored_gcc_optimization_f_Group : OptionGroup<
  "<clang_ignored_gcc_optimization_f_Group>">, Group<f_Group>;

/////////
// Options

// The internal option ID must be a valid C++ identifier and results in a
// clang::driver::options::OPT_XX enum constant for XX.
//
// We want to unambiguously be able to refer to options from the driver source
// code, for this reason the option name is mangled into an ID. This mangling
// isn't guaranteed to have an inverse, but for practical purposes it does.
//
// The mangling scheme is to ignore the leading '-', and perform the following
// substitutions:
//   _ => __
//   - => _
//   / => _SLASH
//   # => _HASH
//   ? => _QUESTION
//   , => _COMMA
//   = => _EQ
//   C++ => CXX
//   . => _

// Developer Driver Options

def internal_Group : OptionGroup<"<clang internal options>">;
def internal_driver_Group : OptionGroup<"<clang driver internal options>">,
  Group<internal_Group>, HelpText<"DRIVER OPTIONS">;
def internal_debug_Group :
  OptionGroup<"<clang debug/development internal options>">,
  Group<internal_Group>, HelpText<"DEBUG/DEVELOPMENT OPTIONS">;

class InternalDriverOpt : Group<internal_driver_Group>,
  Flags<[DriverOption, HelpHidden]>;
def driver_mode : Joined<["--"], "driver-mode=">, Group<internal_driver_Group>,
  Flags<[CoreOption, DriverOption, HelpHidden]>,
  HelpText<"Set the driver mode to either 'gcc', 'g++', 'cpp', or 'cl'">;
def rsp_quoting : Joined<["--"], "rsp-quoting=">, Group<internal_driver_Group>,
  Flags<[CoreOption, DriverOption, HelpHidden]>,
  HelpText<"Set the rsp quoting to either 'posix', or 'windows'">;
def ccc_gcc_name : Separate<["-"], "ccc-gcc-name">, InternalDriverOpt,
  HelpText<"Name for native GCC compiler">,
  MetaVarName<"<gcc-path>">;
def ccc_pch_is_pch : Flag<["-"], "ccc-pch-is-pch">, InternalDriverOpt,
  HelpText<"Use lazy PCH for precompiled headers">;
def ccc_pch_is_pth : Flag<["-"], "ccc-pch-is-pth">, InternalDriverOpt,
  HelpText<"Use pretokenized headers for precompiled headers">;

class InternalDebugOpt : Group<internal_debug_Group>,
  Flags<[DriverOption, HelpHidden, CoreOption]>;
def ccc_install_dir : Separate<["-"], "ccc-install-dir">, InternalDebugOpt,
  HelpText<"Simulate installation in the given directory">;
def ccc_print_phases : Flag<["-"], "ccc-print-phases">, InternalDebugOpt,
  HelpText<"Dump list of actions to perform">;
def ccc_print_bindings : Flag<["-"], "ccc-print-bindings">, InternalDebugOpt,
  HelpText<"Show bindings of tools to actions">;

def ccc_arcmt_check : Flag<["-"], "ccc-arcmt-check">, InternalDriverOpt,
  HelpText<"Check for ARC migration issues that need manual handling">;
def ccc_arcmt_modify : Flag<["-"], "ccc-arcmt-modify">, InternalDriverOpt,
  HelpText<"Apply modifications to files to conform to ARC">;
def ccc_arcmt_migrate : Separate<["-"], "ccc-arcmt-migrate">, InternalDriverOpt,
  HelpText<"Apply modifications and produces temporary files that conform to ARC">;
def arcmt_migrate_report_output : Separate<["-"], "arcmt-migrate-report-output">,
  HelpText<"Output path for the plist report">,  Flags<[CC1Option]>;
def arcmt_migrate_emit_arc_errors : Flag<["-"], "arcmt-migrate-emit-errors">,
  HelpText<"Emit ARC errors even if the migrator can fix them">,
  Flags<[CC1Option]>;
def gen_reproducer: Flag<["-"], "gen-reproducer">, InternalDebugOpt,
  HelpText<"Auto-generates preprocessed source files and a reproduction script">;

def _migrate : Flag<["--"], "migrate">, Flags<[DriverOption]>,
  HelpText<"Run the migrator">;
def ccc_objcmt_migrate : Separate<["-"], "ccc-objcmt-migrate">,
  InternalDriverOpt,
  HelpText<"Apply modifications and produces temporary files to migrate to "
   "modern ObjC syntax">;
def objcmt_migrate_literals : Flag<["-"], "objcmt-migrate-literals">, Flags<[CC1Option]>,
  HelpText<"Enable migration to modern ObjC literals">;
def objcmt_migrate_subscripting : Flag<["-"], "objcmt-migrate-subscripting">, Flags<[CC1Option]>,
  HelpText<"Enable migration to modern ObjC subscripting">;
def objcmt_migrate_property : Flag<["-"], "objcmt-migrate-property">, Flags<[CC1Option]>,
  HelpText<"Enable migration to modern ObjC property">;
def objcmt_migrate_all : Flag<["-"], "objcmt-migrate-all">, Flags<[CC1Option]>,
  HelpText<"Enable migration to modern ObjC">;
def objcmt_migrate_readonly_property : Flag<["-"], "objcmt-migrate-readonly-property">, Flags<[CC1Option]>,
  HelpText<"Enable migration to modern ObjC readonly property">;
def objcmt_migrate_readwrite_property : Flag<["-"], "objcmt-migrate-readwrite-property">, Flags<[CC1Option]>,
  HelpText<"Enable migration to modern ObjC readwrite property">;
def objcmt_migrate_property_dot_syntax : Flag<["-"], "objcmt-migrate-property-dot-syntax">, Flags<[CC1Option]>,
  HelpText<"Enable migration of setter/getter messages to property-dot syntax">;
def objcmt_migrate_annotation : Flag<["-"], "objcmt-migrate-annotation">, Flags<[CC1Option]>,
  HelpText<"Enable migration to property and method annotations">;
def objcmt_migrate_instancetype : Flag<["-"], "objcmt-migrate-instancetype">, Flags<[CC1Option]>,
  HelpText<"Enable migration to infer instancetype for method result type">;
def objcmt_migrate_nsmacros : Flag<["-"], "objcmt-migrate-ns-macros">, Flags<[CC1Option]>,
  HelpText<"Enable migration to NS_ENUM/NS_OPTIONS macros">;
def objcmt_migrate_protocol_conformance : Flag<["-"], "objcmt-migrate-protocol-conformance">, Flags<[CC1Option]>,
  HelpText<"Enable migration to add protocol conformance on classes">;
def objcmt_atomic_property : Flag<["-"], "objcmt-atomic-property">, Flags<[CC1Option]>,
  HelpText<"Make migration to 'atomic' properties">;
def objcmt_returns_innerpointer_property : Flag<["-"], "objcmt-returns-innerpointer-property">, Flags<[CC1Option]>,
  HelpText<"Enable migration to annotate property with NS_RETURNS_INNER_POINTER">;
def objcmt_ns_nonatomic_iosonly: Flag<["-"], "objcmt-ns-nonatomic-iosonly">, Flags<[CC1Option]>,
  HelpText<"Enable migration to use NS_NONATOMIC_IOSONLY macro for setting property's 'atomic' attribute">;
def objcmt_migrate_designated_init : Flag<["-"], "objcmt-migrate-designated-init">, Flags<[CC1Option]>,
  HelpText<"Enable migration to infer NS_DESIGNATED_INITIALIZER for initializer methods">;
def objcmt_whitelist_dir_path: Joined<["-"], "objcmt-whitelist-dir-path=">, Flags<[CC1Option]>,
  HelpText<"Only modify files with a filename contained in the provided directory path">;
// The misspelt "white-list" [sic] alias is due for removal.
def : Joined<["-"], "objcmt-white-list-dir-path=">, Flags<[CC1Option]>,
    Alias<objcmt_whitelist_dir_path>;

def index_store_path : Separate<["-"], "index-store-path">, Flags<[CC1Option]>,
  HelpText<"Enable indexing with the specified data store path">;
def index_ignore_system_symbols : Flag<["-"], "index-ignore-system-symbols">, Flags<[CC1Option]>,
  HelpText<"Ignore symbols from system headers">;
def index_record_codegen_name : Flag<["-"], "index-record-codegen-name">, Flags<[CC1Option]>,
  HelpText<"Record the codegen name for symbols">;

// Make sure all other -ccc- options are rejected.
def ccc_ : Joined<["-"], "ccc-">, Group<internal_Group>, Flags<[Unsupported]>;

// Standard Options

def _HASH_HASH_HASH : Flag<["-"], "###">, Flags<[DriverOption, CoreOption]>,
    HelpText<"Print (but do not run) the commands to run for this compilation">;
def _DASH_DASH : Option<["--"], "", KIND_REMAINING_ARGS>,
    Flags<[DriverOption, CoreOption]>;
def A : JoinedOrSeparate<["-"], "A">, Flags<[RenderJoined]>;
def B : JoinedOrSeparate<["-"], "B">;
def CC : Flag<["-"], "CC">, Flags<[CC1Option]>;
def C : Flag<["-"], "C">, Flags<[CC1Option]>;
def D : JoinedOrSeparate<["-"], "D">, Group<CompileOnly_Group>, Flags<[CC1Option]>;
def E : Flag<["-"], "E">, Flags<[DriverOption,CC1Option]>, Group<Action_Group>,
  HelpText<"Only run the preprocessor">;
def F : JoinedOrSeparate<["-"], "F">, Flags<[RenderJoined,CC1Option]>,
    HelpText<"Add directory to framework include search path">;
def G : JoinedOrSeparate<["-"], "G">, Flags<[DriverOption]>;
def G_EQ : Joined<["-"], "G=">, Flags<[DriverOption]>;
def H : Flag<["-"], "H">, Flags<[CC1Option]>,
    HelpText<"Show header includes and nesting depth">;
def I_ : Flag<["-"], "I-">, Group<I_Group>;
def I : JoinedOrSeparate<["-"], "I">, Group<I_Group>, Flags<[CC1Option,CC1AsOption]>,
    HelpText<"Add directory to include search path">;
def L : JoinedOrSeparate<["-"], "L">, Flags<[RenderJoined]>;
def MD : Flag<["-"], "MD">, Group<M_Group>,
    HelpText<"Write a depfile containing user and system headers">;
def MMD : Flag<["-"], "MMD">, Group<M_Group>,
    HelpText<"Write a depfile containing user headers">;
def M : Flag<["-"], "M">, Group<M_Group>,
    HelpText<"Like -MD, but also implies -E and writes to stdout by default">;
def MM : Flag<["-"], "MM">, Group<M_Group>,
    HelpText<"Like -MMD, but also implies -E and writes to stdout by default">;
def MF : JoinedOrSeparate<["-"], "MF">, Group<M_Group>,
    HelpText<"Write depfile output from -MMD, -MD, -MM, or -M to <file>">,
    MetaVarName<"<file>">;
def MG : Flag<["-"], "MG">, Group<M_Group>, Flags<[CC1Option]>,
    HelpText<"Add missing headers to depfile">;
def MJ : JoinedOrSeparate<["-"], "MJ">, Group<M_Group>,
    HelpText<"Write a compilation database entry per input">;
def MP : Flag<["-"], "MP">, Group<M_Group>, Flags<[CC1Option]>,
    HelpText<"Create phony target for each dependency (other than main file)">;
def MQ : JoinedOrSeparate<["-"], "MQ">, Group<M_Group>, Flags<[CC1Option]>,
    HelpText<"Specify name of main file output to quote in depfile">;
def MT : JoinedOrSeparate<["-"], "MT">, Group<M_Group>, Flags<[CC1Option]>,
    HelpText<"Specify name of main file output in depfile">;
def MV : Flag<["-"], "MV">, Group<M_Group>, Flags<[CC1Option]>,
    HelpText<"Use NMake/Jom format for the depfile">;
def Mach : Flag<["-"], "Mach">;
def O0 : Flag<["-"], "O0">, Group<O_Group>, Flags<[CC1Option]>;
def O4 : Flag<["-"], "O4">, Group<O_Group>, Flags<[CC1Option]>;
def ObjCXX : Flag<["-"], "ObjC++">, Flags<[DriverOption]>,
  HelpText<"Treat source input files as Objective-C++ inputs">;
def ObjC : Flag<["-"], "ObjC">, Flags<[DriverOption]>,
  HelpText<"Treat source input files as Objective-C inputs">;
def O : Joined<["-"], "O">, Group<O_Group>, Flags<[CC1Option]>;
def O_flag : Flag<["-"], "O">, Flags<[CC1Option]>, Alias<O>, AliasArgs<["2"]>;
def Ofast : Joined<["-"], "Ofast">, Group<O_Group>, Flags<[CC1Option]>;
def P : Flag<["-"], "P">, Flags<[CC1Option]>,
  HelpText<"Disable linemarker output in -E mode">;
def Qn : Flag<["-"], "Qn">;
def Qunused_arguments : Flag<["-"], "Qunused-arguments">, Flags<[DriverOption, CoreOption]>,
  HelpText<"Don't emit warning for unused driver arguments">;
def Q : Flag<["-"], "Q">;
def Rpass_EQ : Joined<["-"], "Rpass=">, Group<R_value_Group>, Flags<[CC1Option]>,
  HelpText<"Report transformations performed by optimization passes whose "
           "name matches the given POSIX regular expression">;
def Rpass_missed_EQ : Joined<["-"], "Rpass-missed=">, Group<R_value_Group>,
  Flags<[CC1Option]>,
  HelpText<"Report missed transformations by optimization passes whose "
           "name matches the given POSIX regular expression">;
def Rpass_analysis_EQ : Joined<["-"], "Rpass-analysis=">, Group<R_value_Group>,
  Flags<[CC1Option]>,
  HelpText<"Report transformation analysis from optimization passes whose "
           "name matches the given POSIX regular expression">;
def R_Joined : Joined<["-"], "R">, Group<R_Group>, Flags<[CC1Option, CoreOption]>,
  MetaVarName<"<remark>">, HelpText<"Enable the specified remark">;
def S : Flag<["-"], "S">, Flags<[DriverOption,CC1Option]>, Group<Action_Group>,
  HelpText<"Only run preprocess and compilation steps">;
def Tbss : JoinedOrSeparate<["-"], "Tbss">, Group<T_Group>;
def Tdata : JoinedOrSeparate<["-"], "Tdata">, Group<T_Group>;
def Ttext : JoinedOrSeparate<["-"], "Ttext">, Group<T_Group>;
def T : JoinedOrSeparate<["-"], "T">, Group<T_Group>;
def U : JoinedOrSeparate<["-"], "U">, Group<CompileOnly_Group>, Flags<[CC1Option]>;
def V : JoinedOrSeparate<["-"], "V">, Flags<[DriverOption, Unsupported]>;
def Wa_COMMA : CommaJoined<["-"], "Wa,">,
  HelpText<"Pass the comma separated arguments in <arg> to the assembler">,
  MetaVarName<"<arg>">;
def Wall : Flag<["-"], "Wall">, Group<W_Group>, Flags<[CC1Option]>;
def WCL4 : Flag<["-"], "WCL4">, Group<W_Group>, Flags<[CC1Option]>;
def Wdeprecated : Flag<["-"], "Wdeprecated">, Group<W_Group>, Flags<[CC1Option]>;
def Wno_deprecated : Flag<["-"], "Wno-deprecated">, Group<W_Group>, Flags<[CC1Option]>;
def Wextra : Flag<["-"], "Wextra">, Group<W_Group>, Flags<[CC1Option]>;
def Wl_COMMA : CommaJoined<["-"], "Wl,">, Flags<[LinkerInput, RenderAsInput]>,
  HelpText<"Pass the comma separated arguments in <arg> to the linker">,
  MetaVarName<"<arg>">;
// FIXME: This is broken; these should not be Joined arguments.
def Wno_nonportable_cfstrings : Joined<["-"], "Wno-nonportable-cfstrings">, Group<W_Group>,
  Flags<[CC1Option]>;
def Wnonportable_cfstrings : Joined<["-"], "Wnonportable-cfstrings">, Group<W_Group>,
  Flags<[CC1Option]>;
def Wp_COMMA : CommaJoined<["-"], "Wp,">,
  HelpText<"Pass the comma separated arguments in <arg> to the preprocessor">,
  MetaVarName<"<arg>">;
def Wwrite_strings : Flag<["-"], "Wwrite-strings">, Group<W_Group>, Flags<[CC1Option]>;
def Wno_write_strings : Flag<["-"], "Wno-write-strings">, Group<W_Group>, Flags<[CC1Option]>;
def W_Joined : Joined<["-"], "W">, Group<W_Group>, Flags<[CC1Option, CoreOption]>,
  MetaVarName<"<warning>">, HelpText<"Enable the specified warning">;
def Xanalyzer : Separate<["-"], "Xanalyzer">,
  HelpText<"Pass <arg> to the static analyzer">, MetaVarName<"<arg>">;
def Xarch__ : JoinedAndSeparate<["-"], "Xarch_">, Flags<[DriverOption]>;
def Xassembler : Separate<["-"], "Xassembler">,
  HelpText<"Pass <arg> to the assembler">, MetaVarName<"<arg>">;
def Xclang : Separate<["-"], "Xclang">,
  HelpText<"Pass <arg> to the clang compiler">, MetaVarName<"<arg>">,
  Flags<[DriverOption, CoreOption]>, Group<CompileOnly_Group>;
def Xcuda_fatbinary : Separate<["-"], "Xcuda-fatbinary">,
  HelpText<"Pass <arg> to fatbinary invocation">, MetaVarName<"<arg>">;
def Xcuda_ptxas : Separate<["-"], "Xcuda-ptxas">,
  HelpText<"Pass <arg> to the ptxas assembler">, MetaVarName<"<arg>">;
def z : Separate<["-"], "z">, Flags<[LinkerInput, RenderAsInput]>,
  HelpText<"Pass -z <arg> to the linker">, MetaVarName<"<arg>">;
def Xlinker : Separate<["-"], "Xlinker">, Flags<[LinkerInput, RenderAsInput]>,
  HelpText<"Pass <arg> to the linker">, MetaVarName<"<arg>">;
def Xpreprocessor : Separate<["-"], "Xpreprocessor">,
  HelpText<"Pass <arg> to the preprocessor">, MetaVarName<"<arg>">;
def X_Flag : Flag<["-"], "X">;
def X_Joined : Joined<["-"], "X">;
def Z_Flag : Flag<["-"], "Z">;
def Z_Joined : Joined<["-"], "Z">;
def all__load : Flag<["-"], "all_load">;
def allowable__client : Separate<["-"], "allowable_client">;
def ansi : Flag<["-", "--"], "ansi">;
def arch__errors__fatal : Flag<["-"], "arch_errors_fatal">;
def arch : Separate<["-"], "arch">, Flags<[DriverOption]>;
def arch__only : Separate<["-"], "arch_only">;
def a : Joined<["-"], "a">;
def bind__at__load : Flag<["-"], "bind_at_load">;
def bundle__loader : Separate<["-"], "bundle_loader">;
def bundle : Flag<["-"], "bundle">;
def b : JoinedOrSeparate<["-"], "b">, Flags<[Unsupported]>;
def cl_opt_disable : Flag<["-"], "cl-opt-disable">, Group<opencl_Group>, Flags<[CC1Option]>,
  HelpText<"OpenCL only. This option disables all optimizations. By default optimizations are enabled.">;
def cl_strict_aliasing : Flag<["-"], "cl-strict-aliasing">, Group<opencl_Group>, Flags<[CC1Option]>,
  HelpText<"OpenCL only. This option is added for compatibility with OpenCL 1.0.">;
def cl_single_precision_constant : Flag<["-"], "cl-single-precision-constant">, Group<opencl_Group>, Flags<[CC1Option]>,
  HelpText<"OpenCL only. Treat double precision floating-point constant as single precision constant.">;
def cl_finite_math_only : Flag<["-"], "cl-finite-math-only">, Group<opencl_Group>, Flags<[CC1Option]>,
  HelpText<"OpenCL only. Allow floating-point optimizations that assume arguments and results are not NaNs or +-Inf.">;
def cl_kernel_arg_info : Flag<["-"], "cl-kernel-arg-info">, Group<opencl_Group>, Flags<[CC1Option]>,
  HelpText<"OpenCL only. Generate kernel argument metadata.">;
def cl_unsafe_math_optimizations : Flag<["-"], "cl-unsafe-math-optimizations">, Group<opencl_Group>, Flags<[CC1Option]>,
  HelpText<"OpenCL only. Allow unsafe floating-point optimizations.  Also implies -cl-no-signed-zeros and -cl-mad-enable.">;
def cl_fast_relaxed_math : Flag<["-"], "cl-fast-relaxed-math">, Group<opencl_Group>, Flags<[CC1Option]>,
  HelpText<"OpenCL only. Sets -cl-finite-math-only and -cl-unsafe-math-optimizations, and defines __FAST_RELAXED_MATH__.">;
def cl_mad_enable : Flag<["-"], "cl-mad-enable">, Group<opencl_Group>, Flags<[CC1Option]>,
  HelpText<"OpenCL only. Allow use of less precise MAD computations in the generated binary.">;
def cl_no_signed_zeros : Flag<["-"], "cl-no-signed-zeros">, Group<opencl_Group>, Flags<[CC1Option]>,
  HelpText<"OpenCL only. Allow use of less precise no signed zeros computations in the generated binary.">;
def cl_std_EQ : Joined<["-"], "cl-std=">, Group<opencl_Group>, Flags<[CC1Option]>,
  HelpText<"OpenCL language standard to compile for.">;
def cl_denorms_are_zero : Flag<["-"], "cl-denorms-are-zero">, Group<opencl_Group>, Flags<[CC1Option]>,
  HelpText<"OpenCL only. Allow denormals to be flushed to zero.">;
def cl_fp32_correctly_rounded_divide_sqrt : Flag<["-"], "cl-fp32-correctly-rounded-divide-sqrt">, Group<opencl_Group>, Flags<[CC1Option]>,
  HelpText<"OpenCL only. Specify that single precision floating-point divide and sqrt used in the program source are correctly rounded.">;
def client__name : JoinedOrSeparate<["-"], "client_name">;
def combine : Flag<["-", "--"], "combine">, Flags<[DriverOption, Unsupported]>;
def compatibility__version : JoinedOrSeparate<["-"], "compatibility_version">;
def coverage : Flag<["-", "--"], "coverage">;
def cpp_precomp : Flag<["-"], "cpp-precomp">, Group<clang_ignored_f_Group>;
def current__version : JoinedOrSeparate<["-"], "current_version">;
def cxx_isystem : JoinedOrSeparate<["-"], "cxx-isystem">, Group<clang_i_Group>,
  HelpText<"Add directory to the C++ SYSTEM include search path">, Flags<[CC1Option]>,
  MetaVarName<"<directory>">;
def c : Flag<["-"], "c">, Flags<[DriverOption]>,
  HelpText<"Only run preprocess, compile, and assemble steps">;
def cuda_device_only : Flag<["--"], "cuda-device-only">,
  HelpText<"Compile CUDA code for device only">;
def cuda_host_only : Flag<["--"], "cuda-host-only">,
  HelpText<"Compile CUDA code for host only.  Has no effect on non-CUDA "
           "compilations.">;
def cuda_compile_host_device : Flag<["--"], "cuda-compile-host-device">,
  HelpText<"Compile CUDA code for both host and device (default).  Has no "
           "effect on non-CUDA compilations.">;
def cuda_gpu_arch_EQ : Joined<["--"], "cuda-gpu-arch=">, Flags<[DriverOption]>,
  HelpText<"CUDA GPU architecture (e.g. sm_35).  May be specified more than once.">;
def no_cuda_gpu_arch_EQ : Joined<["--"], "no-cuda-gpu-arch=">, Flags<[DriverOption]>,
  HelpText<"Remove GPU architecture (e.g. sm_35) from the list of GPUs to compile for. "
           "'all' resets the list to its default value.">;
def cuda_noopt_device_debug : Flag<["--"], "cuda-noopt-device-debug">,
  HelpText<"Enable device-side debug info generation. Disables ptxas optimizations.">;
def no_cuda_version_check : Flag<["--"], "no-cuda-version-check">,
  HelpText<"Don't error out if the detected version of the CUDA install is "
           "too low for the requested CUDA gpu architecture.">;
def no_cuda_noopt_device_debug : Flag<["--"], "no-cuda-noopt-device-debug">;
def cuda_path_EQ : Joined<["--"], "cuda-path=">, Group<i_Group>,
  HelpText<"CUDA installation path">;
def ptxas_path_EQ : Joined<["--"], "ptxas-path=">, Group<i_Group>,
  HelpText<"Path to ptxas (used for compiling CUDA code)">;
def fcuda_flush_denormals_to_zero : Flag<["-"], "fcuda-flush-denormals-to-zero">,
  Flags<[CC1Option]>, HelpText<"Flush denormal floating point values to zero in CUDA device mode.">;
def fno_cuda_flush_denormals_to_zero : Flag<["-"], "fno-cuda-flush-denormals-to-zero">;
def fcuda_approx_transcendentals : Flag<["-"], "fcuda-approx-transcendentals">,
  Flags<[CC1Option]>, HelpText<"Use approximate transcendental functions">;
def fno_cuda_approx_transcendentals : Flag<["-"], "fno-cuda-approx-transcendentals">;
def dA : Flag<["-"], "dA">, Group<d_Group>;
def dD : Flag<["-"], "dD">, Group<d_Group>, Flags<[CC1Option]>,
  HelpText<"Print macro definitions in -E mode in addition to normal output">;
def dI : Flag<["-"], "dI">, Group<d_Group>, Flags<[CC1Option]>,
  HelpText<"Print include directives in -E mode in addition to normal output">;
def dM : Flag<["-"], "dM">, Group<d_Group>, Flags<[CC1Option]>,
  HelpText<"Print macro definitions in -E mode instead of normal output">;
def dead__strip : Flag<["-"], "dead_strip">;
def dependency_file : Separate<["-"], "dependency-file">, Flags<[CC1Option]>,
  HelpText<"Filename (or -) to write dependency output to">;
def dependency_dot : Separate<["-"], "dependency-dot">, Flags<[CC1Option]>,
  HelpText<"Filename to write DOT-formatted header dependencies to">;
def module_dependency_dir : Separate<["-"], "module-dependency-dir">,
  Flags<[CC1Option]>, HelpText<"Directory to dump module dependencies to">;
def dumpmachine : Flag<["-"], "dumpmachine">;
def dumpspecs : Flag<["-"], "dumpspecs">, Flags<[Unsupported]>;
def dumpversion : Flag<["-"], "dumpversion">;
def dylib__file : Separate<["-"], "dylib_file">;
def dylinker__install__name : JoinedOrSeparate<["-"], "dylinker_install_name">;
def dylinker : Flag<["-"], "dylinker">;
def dynamiclib : Flag<["-"], "dynamiclib">;
def dynamic : Flag<["-"], "dynamic">, Flags<[NoArgumentUnused]>;
def d_Flag : Flag<["-"], "d">, Group<d_Group>;
def d_Joined : Joined<["-"], "d">, Group<d_Group>;
def emit_ast : Flag<["-"], "emit-ast">,
  HelpText<"Emit Clang AST files for source inputs">;
def emit_llvm : Flag<["-"], "emit-llvm">, Flags<[CC1Option]>, Group<Action_Group>,
  HelpText<"Use the LLVM representation for assembler and object files">;
def exported__symbols__list : Separate<["-"], "exported_symbols_list">;
def e : JoinedOrSeparate<["-"], "e">;
def fPIC : Flag<["-"], "fPIC">, Group<f_Group>;
def fno_PIC : Flag<["-"], "fno-PIC">, Group<f_Group>;
def fPIE : Flag<["-"], "fPIE">, Group<f_Group>;
def fno_PIE : Flag<["-"], "fno-PIE">, Group<f_Group>;
def faccess_control : Flag<["-"], "faccess-control">, Group<f_Group>;
def fallow_unsupported : Flag<["-"], "fallow-unsupported">, Group<f_Group>;
def fapple_kext : Flag<["-"], "fapple-kext">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Use Apple's kernel extensions ABI">;
def fapple_pragma_pack : Flag<["-"], "fapple-pragma-pack">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Enable Apple gcc-compatible #pragma pack handling">;
def shared_libasan : Flag<["-"], "shared-libasan">;
def fasm : Flag<["-"], "fasm">, Group<f_Group>;

def fasm_blocks : Flag<["-"], "fasm-blocks">, Group<f_Group>, Flags<[CC1Option]>;
def fno_asm_blocks : Flag<["-"], "fno-asm-blocks">, Group<f_Group>;

def fassume_sane_operator_new : Flag<["-"], "fassume-sane-operator-new">, Group<f_Group>;
def fastcp : Flag<["-"], "fastcp">, Group<f_Group>;
def fastf : Flag<["-"], "fastf">, Group<f_Group>;
def fast : Flag<["-"], "fast">, Group<f_Group>;
def fasynchronous_unwind_tables : Flag<["-"], "fasynchronous-unwind-tables">, Group<f_Group>;

def fautolink : Flag <["-"], "fautolink">, Group<f_Group>;
def fno_autolink : Flag <["-"], "fno-autolink">, Group<f_Group>,
  Flags<[DriverOption, CC1Option]>,
  HelpText<"Disable generation of linker directives for automatic library linking">;

// C++ Coroutines TS
def fcoroutines_ts : Flag <["-"], "fcoroutines-ts">, Group<f_Group>,
  Flags<[DriverOption, CC1Option]>,
  HelpText<"Enable support for the C++ Coroutines TS">;
def fno_coroutines_ts : Flag <["-"], "fno-coroutines-ts">, Group<f_Group>,
  Flags<[DriverOption]>;

def fembed_bitcode_EQ : Joined<["-"], "fembed-bitcode=">,
    Group<f_Group>, Flags<[DriverOption, CC1Option]>, MetaVarName<"<option>">,
    HelpText<"Embed LLVM bitcode (option: off, all, bitcode, marker)">;
def fembed_bitcode : Flag<["-"], "fembed-bitcode">, Group<f_Group>,
  Alias<fembed_bitcode_EQ>, AliasArgs<["all"]>,
  HelpText<"Embed LLVM IR bitcode as data">;
def fembed_bitcode_marker : Flag<["-"], "fembed-bitcode-marker">,
  Alias<fembed_bitcode_EQ>, AliasArgs<["marker"]>,
  HelpText<"Embed placeholder LLVM IR data as a marker">;
def fgnu_inline_asm : Flag<["-"], "fgnu-inline-asm">, Group<f_Group>, Flags<[DriverOption]>;
def fno_gnu_inline_asm : Flag<["-"], "fno-gnu-inline-asm">, Group<f_Group>,
  Flags<[DriverOption, CC1Option]>,
  HelpText<"Disable GNU style inline asm">;

def fprofile_sample_use_EQ : Joined<["-"], "fprofile-sample-use=">,
    Group<f_Group>, Flags<[DriverOption, CC1Option]>,
    HelpText<"Enable sample-based profile guided optimizations">;
def fauto_profile_EQ : Joined<["-"], "fauto-profile=">,
    Alias<fprofile_sample_use_EQ>;
def fprofile_instr_generate : Flag<["-"], "fprofile-instr-generate">,
    Group<f_Group>, Flags<[CoreOption]>,
    HelpText<"Generate instrumented code to collect execution counts into default.profraw file (overriden by '=' form of option or LLVM_PROFILE_FILE env var)">;
def fprofile_instr_generate_EQ : Joined<["-"], "fprofile-instr-generate=">,
    Group<f_Group>, Flags<[CoreOption]>, MetaVarName<"<file>">,
    HelpText<"Generate instrumented code to collect execution counts into <file> (overridden by LLVM_PROFILE_FILE env var)">;
def fprofile_instr_use : Flag<["-"], "fprofile-instr-use">, Group<f_Group>,
    Flags<[CoreOption]>;
def fprofile_instr_use_EQ : Joined<["-"], "fprofile-instr-use=">,
    Group<f_Group>, Flags<[CoreOption]>,
    HelpText<"Use instrumentation data for profile-guided optimization">;
def fcoverage_mapping : Flag<["-"], "fcoverage-mapping">,
    Group<f_Group>, Flags<[CC1Option]>,
    HelpText<"Generate coverage mapping to enable code coverage analysis">;
def fno_coverage_mapping : Flag<["-"], "fno-coverage-mapping">,
    Group<f_Group>, Flags<[DriverOption]>,
    HelpText<"Disable code coverage analysis">;
def fprofile_generate : Flag<["-"], "fprofile-generate">,
    Group<f_Group>, Flags<[DriverOption]>,
    HelpText<"Generate instrumented code to collect execution counts into default.profraw (overridden by LLVM_PROFILE_FILE env var)">;
def fprofile_generate_EQ : Joined<["-"], "fprofile-generate=">,
    Group<f_Group>, Flags<[DriverOption]>, MetaVarName<"<directory>">,
    HelpText<"Generate instrumented code to collect execution counts into <directory>/default.profraw (overridden by LLVM_PROFILE_FILE env var)">;
def fprofile_use : Flag<["-"], "fprofile-use">, Group<f_Group>,
    Alias<fprofile_instr_use>;
def fprofile_use_EQ : Joined<["-"], "fprofile-use=">,
    Group<f_Group>, Flags<[DriverOption]>, MetaVarName<"<pathname>">,
    HelpText<"Use instrumentation data for profile-guided optimization. If pathname is a directory, it reads from <pathname>/default.profdata. Otherwise, it reads from file <pathname>.">;
def fno_profile_instr_generate : Flag<["-"], "fno-profile-instr-generate">,
    Group<f_Group>, Flags<[DriverOption]>,
    HelpText<"Disable generation of profile instrumentation.">;
def fno_profile_generate : Flag<["-"], "fno-profile-generate">,
    Group<f_Group>, Flags<[DriverOption]>,
    HelpText<"Disable generation of profile instrumentation.">;
def fno_profile_instr_use : Flag<["-"], "fno-profile-instr-use">,
    Group<f_Group>, Flags<[DriverOption]>,
    HelpText<"Disable using instrumentation data for profile-guided optimization">;
def fno_profile_use : Flag<["-"], "fno-profile-use">,
    Alias<fno_profile_instr_use>;

def fapinotes : Flag<["-"], "fapinotes">, Group<f_clang_Group>,
  Flags<[CC1Option]>, HelpText<"Enable external API notes support">;
def fapinotes_modules : Flag<["-"], "fapinotes-modules">, Group<f_clang_Group>,
  Flags<[CC1Option]>, HelpText<"Enable module-based external API notes support">;
def fno_apinotes : Flag<["-"], "fno-apinotes">, Group<f_clang_Group>,
  Flags<[CC1Option]>, HelpText<"Disable external API notes support">;
def fno_apinotes_modules : Flag<["-"], "fno-apinotes-modules">, Group<f_clang_Group>,
  Flags<[CC1Option]>, HelpText<"Disable module-based external API notes support">;
def fapinotes_cache_path : Joined<["-"], "fapinotes-cache-path=">,
  Group<i_Group>, Flags<[DriverOption, CC1Option]>, MetaVarName<"<directory>">,
  HelpText<"Specify the API notes cache path">;
def fapinotes_swift_version : Joined<["-"], "fapinotes-swift-version=">,
  Group<f_clang_Group>, Flags<[CC1Option]>, MetaVarName<"<version>">,
  HelpText<"Specify the Swift version to use when filtering API notes">;

def fblocks : Flag<["-"], "fblocks">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Enable the 'blocks' language feature">;
def fbootclasspath_EQ : Joined<["-"], "fbootclasspath=">, Group<f_Group>;
def fborland_extensions : Flag<["-"], "fborland-extensions">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Accept non-standard constructs supported by the Borland compiler">;
def fbuiltin : Flag<["-"], "fbuiltin">, Group<f_Group>;
def fbuiltin_module_map : Flag <["-"], "fbuiltin-module-map">, Group<f_Group>,
  Flags<[DriverOption]>, HelpText<"Load the clang builtins module map file.">;
def fcaret_diagnostics : Flag<["-"], "fcaret-diagnostics">, Group<f_Group>;
def fclasspath_EQ : Joined<["-"], "fclasspath=">, Group<f_Group>;
def fcolor_diagnostics : Flag<["-"], "fcolor-diagnostics">, Group<f_Group>,
  Flags<[CoreOption, CC1Option]>, HelpText<"Use colors in diagnostics">;
def fdiagnostics_color : Flag<["-"], "fdiagnostics-color">, Group<f_Group>,
  Flags<[CoreOption, DriverOption]>;
def fdiagnostics_color_EQ : Joined<["-"], "fdiagnostics-color=">, Group<f_Group>;
def fansi_escape_codes : Flag<["-"], "fansi-escape-codes">, Group<f_Group>,
  Flags<[CoreOption, CC1Option]>, HelpText<"Use ANSI escape codes for diagnostics">;
def fcomment_block_commands : CommaJoined<["-"], "fcomment-block-commands=">, Group<f_clang_Group>, Flags<[CC1Option]>,
  HelpText<"Treat each comma separated argument in <arg> as a documentation comment block command">,
  MetaVarName<"<arg>">;
def fparse_all_comments : Flag<["-"], "fparse-all-comments">, Group<f_clang_Group>, Flags<[CC1Option]>;
def fcommon : Flag<["-"], "fcommon">, Group<f_Group>;
def fcompile_resource_EQ : Joined<["-"], "fcompile-resource=">, Group<f_Group>;
def fconstant_cfstrings : Flag<["-"], "fconstant-cfstrings">, Group<f_Group>;
def fconstant_string_class_EQ : Joined<["-"], "fconstant-string-class=">, Group<f_Group>;
def fconstexpr_depth_EQ : Joined<["-"], "fconstexpr-depth=">, Group<f_Group>;
def fconstexpr_steps_EQ : Joined<["-"], "fconstexpr-steps=">, Group<f_Group>;
def fconstexpr_backtrace_limit_EQ : Joined<["-"], "fconstexpr-backtrace-limit=">,
                                    Group<f_Group>;
def fno_crash_diagnostics : Flag<["-"], "fno-crash-diagnostics">, Group<f_clang_Group>, Flags<[NoArgumentUnused]>,
  HelpText<"Disable auto-generation of preprocessed source files and a script for reproduction during a clang crash">;
def fcreate_profile : Flag<["-"], "fcreate-profile">, Group<f_Group>;
def fcxx_exceptions: Flag<["-"], "fcxx-exceptions">, Group<f_Group>,
  HelpText<"Enable C++ exceptions">, Flags<[CC1Option]>;
def fcxx_modules : Flag <["-"], "fcxx-modules">, Group<f_Group>,
  Flags<[DriverOption]>;
def fdebug_pass_arguments : Flag<["-"], "fdebug-pass-arguments">, Group<f_Group>;
def fdebug_pass_structure : Flag<["-"], "fdebug-pass-structure">, Group<f_Group>;
def fdepfile_entry : Joined<["-"], "fdepfile-entry=">,
    Group<f_clang_Group>, Flags<[CC1Option]>;
def fdiagnostics_fixit_info : Flag<["-"], "fdiagnostics-fixit-info">, Group<f_clang_Group>;
def fdiagnostics_parseable_fixits : Flag<["-"], "fdiagnostics-parseable-fixits">, Group<f_clang_Group>,
    Flags<[CoreOption, CC1Option]>, HelpText<"Print fix-its in machine parseable form">;
def fdiagnostics_print_source_range_info : Flag<["-"], "fdiagnostics-print-source-range-info">,
    Group<f_clang_Group>,  Flags<[CC1Option]>,
    HelpText<"Print source range spans in numeric form">;
def fdiagnostics_show_hotness : Flag<["-"], "fdiagnostics-show-hotness">, Group<f_Group>,
    Flags<[CC1Option]>, HelpText<"Enable profile hotness information in diagnostic line">;
def fdiagnostics_show_option : Flag<["-"], "fdiagnostics-show-option">, Group<f_Group>,
    Flags<[CC1Option]>, HelpText<"Print option name with mappable diagnostics">;
def fdiagnostics_show_note_include_stack : Flag<["-"], "fdiagnostics-show-note-include-stack">,
    Group<f_Group>,  Flags<[CC1Option]>, HelpText<"Display include stacks for diagnostic notes">;
def fdiagnostics_format_EQ : Joined<["-"], "fdiagnostics-format=">, Group<f_clang_Group>;
def fdiagnostics_show_category_EQ : Joined<["-"], "fdiagnostics-show-category=">, Group<f_clang_Group>;
def fdiagnostics_show_template_tree : Flag<["-"], "fdiagnostics-show-template-tree">,
    Group<f_Group>, Flags<[CC1Option]>,
    HelpText<"Print a template comparison tree for differing templates">;
def fdeclspec : Flag<["-"], "fdeclspec">, Group<f_clang_Group>,
  HelpText<"Allow __declspec as a keyword">, Flags<[CC1Option]>;
def fdollars_in_identifiers : Flag<["-"], "fdollars-in-identifiers">, Group<f_Group>,
  HelpText<"Allow '$' in identifiers">, Flags<[CC1Option]>;
def fdwarf2_cfi_asm : Flag<["-"], "fdwarf2-cfi-asm">, Group<clang_ignored_f_Group>;
def fno_dwarf2_cfi_asm : Flag<["-"], "fno-dwarf2-cfi-asm">, Group<clang_ignored_f_Group>;
def fdwarf_directory_asm : Flag<["-"], "fdwarf-directory-asm">, Group<f_Group>;
def fno_dwarf_directory_asm : Flag<["-"], "fno-dwarf-directory-asm">, Group<f_Group>, Flags<[CC1Option]>;
def felide_constructors : Flag<["-"], "felide-constructors">, Group<f_Group>;
def fno_elide_type : Flag<["-"], "fno-elide-type">, Group<f_Group>,
    Flags<[CC1Option]>,
    HelpText<"Do not elide types when printing diagnostics">;
def feliminate_unused_debug_symbols : Flag<["-"], "feliminate-unused-debug-symbols">, Group<f_Group>;
def femit_all_decls : Flag<["-"], "femit-all-decls">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Emit all declarations, even if unused">;
def femulated_tls : Flag<["-"], "femulated-tls">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Use emutls functions to access thread_local variables">;
def fno_emulated_tls : Flag<["-"], "fno-emulated-tls">, Group<f_Group>;
def fencoding_EQ : Joined<["-"], "fencoding=">, Group<f_Group>;
def ferror_limit_EQ : Joined<["-"], "ferror-limit=">, Group<f_Group>, Flags<[CoreOption]>;
def fexceptions : Flag<["-"], "fexceptions">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Enable support for exception handling">;
def fsjlj_exceptions : Flag<["-"], "fsjlj-exceptions">, Group<f_Group>,
  Flags<[CC1Option]>, HelpText<"Use SjLj style exceptions">;
def fexcess_precision_EQ : Joined<["-"], "fexcess-precision=">,
    Group<clang_ignored_gcc_optimization_f_Group>;
def : Flag<["-"], "fexpensive-optimizations">, Group<clang_ignored_gcc_optimization_f_Group>;
def : Flag<["-"], "fno-expensive-optimizations">, Group<clang_ignored_gcc_optimization_f_Group>;
def fextdirs_EQ : Joined<["-"], "fextdirs=">, Group<f_Group>;
def : Flag<["-"], "fdefer-pop">, Group<clang_ignored_gcc_optimization_f_Group>;
def : Flag<["-"], "fno-defer-pop">, Group<clang_ignored_gcc_optimization_f_Group>;
def : Flag<["-"], "fextended-identifiers">, Group<clang_ignored_f_Group>;
def : Flag<["-"], "fno-extended-identifiers">, Group<f_Group>, Flags<[Unsupported]>;
def fhosted : Flag<["-"], "fhosted">, Group<f_Group>;
def fdenormal_fp_math_EQ : Joined<["-"], "fdenormal-fp-math=">, Group<f_Group>, Flags<[CC1Option]>;
def ffast_math : Flag<["-"], "ffast-math">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Allow aggressive, lossy floating-point optimizations">;
def fno_fast_math : Flag<["-"], "fno-fast-math">, Group<f_Group>;
def fmath_errno : Flag<["-"], "fmath-errno">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Require math functions to indicate errors by setting errno">;
def fno_math_errno : Flag<["-"], "fno-math-errno">, Group<f_Group>;
def fbracket_depth_EQ : Joined<["-"], "fbracket-depth=">, Group<f_Group>;
def fsignaling_math : Flag<["-"], "fsignaling-math">, Group<f_Group>;
def fno_signaling_math : Flag<["-"], "fno-signaling-math">, Group<f_Group>;
def fjump_tables : Flag<["-"], "fjump-tables">, Group<f_Group>;
def fno_jump_tables : Flag<["-"], "fno-jump-tables">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Do not use jump tables for lowering switches">;
def fsanitize_EQ : CommaJoined<["-"], "fsanitize=">, Group<f_clang_Group>,
                   Flags<[CC1Option, CoreOption]>, MetaVarName<"<check>">,
                   HelpText<"Turn on runtime checks for various forms of undefined "
                            "or suspicious behavior. See user manual for available checks">;
def fno_sanitize_EQ : CommaJoined<["-"], "fno-sanitize=">, Group<f_clang_Group>,
                      Flags<[CoreOption]>;
def fsanitize_blacklist : Joined<["-"], "fsanitize-blacklist=">,
                          Group<f_clang_Group>, Flags<[CC1Option, CoreOption]>,
                          HelpText<"Path to blacklist file for sanitizers">;
def fno_sanitize_blacklist : Flag<["-"], "fno-sanitize-blacklist">,
                             Group<f_clang_Group>,
                             HelpText<"Don't use blacklist file for sanitizers">;
def fsanitize_coverage
    : CommaJoined<["-"], "fsanitize-coverage=">,
      Group<f_clang_Group>, Flags<[CoreOption]>,
      HelpText<"Specify the type of coverage instrumentation for Sanitizers">;
def fno_sanitize_coverage
    : CommaJoined<["-"], "fno-sanitize-coverage=">,
      Group<f_clang_Group>, Flags<[CoreOption]>,
      HelpText<"Disable specified features of coverage instrumentation for "
               "Sanitizers">;
def fsanitize_memory_track_origins_EQ : Joined<["-"], "fsanitize-memory-track-origins=">,
                                        Group<f_clang_Group>, Flags<[CC1Option]>,
                                        HelpText<"Enable origins tracking in MemorySanitizer">;
def fsanitize_memory_track_origins : Flag<["-"], "fsanitize-memory-track-origins">,
                                     Group<f_clang_Group>, Flags<[CC1Option]>,
                                     HelpText<"Enable origins tracking in MemorySanitizer">;
def fno_sanitize_memory_track_origins : Flag<["-"], "fno-sanitize-memory-track-origins">,
                                        Group<f_clang_Group>, Flags<[CC1Option]>,
                                        HelpText<"Disable origins tracking in MemorySanitizer">;
def fsanitize_memory_use_after_dtor : Flag<["-"], "fsanitize-memory-use-after-dtor">,
                                     Group<f_clang_Group>, Flags<[CC1Option]>,
                                     HelpText<"Enable use-after-destroy detection in MemorySanitizer">;
def fsanitize_address_field_padding : Joined<["-"], "fsanitize-address-field-padding=">,
                                        Group<f_clang_Group>, Flags<[CC1Option]>,
                                        HelpText<"Level of field padding for AddressSanitizer">;
def fsanitize_address_use_after_scope : Flag<["-"], "fsanitize-address-use-after-scope">,
                                        Group<f_clang_Group>, Flags<[CC1Option]>,
                                        HelpText<"Enable use-after-scope detection in AddressSanitizer">;
def fno_sanitize_address_use_after_scope : Flag<["-"], "fno-sanitize-address-use-after-scope">,
                                           Group<f_clang_Group>, Flags<[CC1Option]>,
                                           HelpText<"Disable use-after-scope detection in AddressSanitizer">;
def fsanitize_recover : Flag<["-"], "fsanitize-recover">, Group<f_clang_Group>,
                        Flags<[CoreOption]>;
def fno_sanitize_recover : Flag<["-"], "fno-sanitize-recover">,
                           Group<f_clang_Group>, Flags<[CoreOption]>;
def fsanitize_recover_EQ : CommaJoined<["-"], "fsanitize-recover=">,
                           Group<f_clang_Group>,
                           Flags<[CC1Option, CoreOption]>,
                           HelpText<"Enable recovery for specified sanitizers">;
def fno_sanitize_recover_EQ
    : CommaJoined<["-"], "fno-sanitize-recover=">,
      Group<f_clang_Group>, Flags<[CoreOption]>,
      HelpText<"Disable recovery for specified sanitizers">;
def fsanitize_trap_EQ : CommaJoined<["-"], "fsanitize-trap=">, Group<f_clang_Group>,
                        Flags<[CC1Option, CoreOption]>,
                        HelpText<"Enable trapping for specified sanitizers">;
def fno_sanitize_trap_EQ : CommaJoined<["-"], "fno-sanitize-trap=">, Group<f_clang_Group>,
                           Flags<[CoreOption]>,
                           HelpText<"Disable trapping for specified sanitizers">;
def fsanitize_undefined_trap_on_error : Flag<["-"], "fsanitize-undefined-trap-on-error">,
                                        Group<f_clang_Group>;
def fno_sanitize_undefined_trap_on_error : Flag<["-"], "fno-sanitize-undefined-trap-on-error">,
                                           Group<f_clang_Group>;
def fsanitize_link_cxx_runtime : Flag<["-"], "fsanitize-link-c++-runtime">,
                                 Group<f_clang_Group>;
def fsanitize_cfi_cross_dso : Flag<["-"], "fsanitize-cfi-cross-dso">,
                              Group<f_clang_Group>, Flags<[CC1Option]>,
                              HelpText<"Enable control flow integrity (CFI) checks for cross-DSO calls.">;
def fno_sanitize_cfi_cross_dso : Flag<["-"], "fno-sanitize-cfi-cross-dso">,
                                 Group<f_clang_Group>, Flags<[CC1Option]>,
                                 HelpText<"Disable control flow integrity (CFI) checks for cross-DSO calls.">;
def fsanitize_stats : Flag<["-"], "fsanitize-stats">,
                              Group<f_clang_Group>, Flags<[CC1Option]>,
                              HelpText<"Enable sanitizer statistics gathering.">;
def fno_sanitize_stats : Flag<["-"], "fno-sanitize-stats">,
                                 Group<f_clang_Group>, Flags<[CC1Option]>,
                                 HelpText<"Disable sanitizer statistics gathering.">;
def fsanitize_thread_memory_access : Flag<["-"], "fsanitize-thread-memory-access">,
                                     Group<f_clang_Group>,
                                     HelpText<"Enable memory access instrumentation in ThreadSanitizer (default)">;
def fno_sanitize_thread_memory_access : Flag<["-"], "fno-sanitize-thread-memory-access">,
                                        Group<f_clang_Group>,
                                        HelpText<"Disable memory access instrumentation in ThreadSanitizer">;
def fsanitize_thread_func_entry_exit : Flag<["-"], "fsanitize-thread-func-entry-exit">,
                                       Group<f_clang_Group>,
                                       HelpText<"Enable function entry/exit instrumentation in ThreadSanitizer (default)">;
def fno_sanitize_thread_func_entry_exit : Flag<["-"], "fno-sanitize-thread-func-entry-exit">,
                                          Group<f_clang_Group>,
                                          HelpText<"Disable function entry/exit instrumentation in ThreadSanitizer">;
def fsanitize_thread_atomics : Flag<["-"], "fsanitize-thread-atomics">,
                               Group<f_clang_Group>,
                               HelpText<"Enable atomic operations instrumentation in ThreadSanitizer (default)">;
def fno_sanitize_thread_atomics : Flag<["-"], "fno-sanitize-thread-atomics">,
                                  Group<f_clang_Group>,
                                  HelpText<"Disable atomic operations instrumentation in ThreadSanitizer">;
def fsanitize_undefined_strip_path_components_EQ : Joined<["-"], "fsanitize-undefined-strip-path-components=">,
  Group<f_clang_Group>, Flags<[CC1Option]>, MetaVarName<"<number>">,
  HelpText<"Strip (or keep only, if negative) a given number of path components "
           "when emitting check metadata.">;
def funsafe_math_optimizations : Flag<["-"], "funsafe-math-optimizations">,
  Group<f_Group>;
def fno_unsafe_math_optimizations : Flag<["-"], "fno-unsafe-math-optimizations">,
  Group<f_Group>;
def fassociative_math : Flag<["-"], "fassociative-math">, Group<f_Group>;
def fno_associative_math : Flag<["-"], "fno-associative-math">, Group<f_Group>;
def freciprocal_math :
  Flag<["-"], "freciprocal-math">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Allow division operations to be reassociated">;
def fno_reciprocal_math : Flag<["-"], "fno-reciprocal-math">, Group<f_Group>;
def ffinite_math_only : Flag<["-"], "ffinite-math-only">, Group<f_Group>, Flags<[CC1Option]>;
def fno_finite_math_only : Flag<["-"], "fno-finite-math-only">, Group<f_Group>;
def fsigned_zeros : Flag<["-"], "fsigned-zeros">, Group<f_Group>;
def fno_signed_zeros :
  Flag<["-"], "fno-signed-zeros">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Allow optimizations that ignore the sign of floating point zeros">;
def fhonor_nans : Flag<["-"], "fhonor-nans">, Group<f_Group>;
def fno_honor_nans : Flag<["-"], "fno-honor-nans">, Group<f_Group>;
def fhonor_infinities : Flag<["-"], "fhonor-infinities">, Group<f_Group>;
def fno_honor_infinities : Flag<["-"], "fno-honor-infinities">, Group<f_Group>;
// This option was originally misspelt "infinites" [sic].
def : Flag<["-"], "fhonor-infinites">, Alias<fhonor_infinities>;
def : Flag<["-"], "fno-honor-infinites">, Alias<fno_honor_infinities>;
def ftrapping_math : Flag<["-"], "ftrapping-math">, Group<f_Group>, Flags<[CC1Option]>;
def fno_trapping_math : Flag<["-"], "fno-trapping-math">, Group<f_Group>, Flags<[CC1Option]>;
def ffp_contract : Joined<["-"], "ffp-contract=">, Group<f_Group>,
  Flags<[CC1Option]>, HelpText<"Form fused FP ops (e.g. FMAs): fast (everywhere)"
  " | on (according to FP_CONTRACT pragma, default) | off (never fuse)">;

def ffor_scope : Flag<["-"], "ffor-scope">, Group<f_Group>;
def fno_for_scope : Flag<["-"], "fno-for-scope">, Group<f_Group>;

def frewrite_includes : Flag<["-"], "frewrite-includes">, Group<f_Group>,
  Flags<[CC1Option]>;
def fno_rewrite_includes : Flag<["-"], "fno-rewrite-includes">, Group<f_Group>;

def frewrite_map_file : Separate<["-"], "frewrite-map-file">,
                        Group<f_Group>,
                        Flags<[ DriverOption, CC1Option ]>;
def frewrite_map_file_EQ : Joined<["-"], "frewrite-map-file=">,
                           Group<f_Group>,
                           Flags<[DriverOption]>;

def fuse_line_directives : Flag<["-"], "fuse-line-directives">, Group<f_Group>,
  Flags<[CC1Option]>;
def fno_use_line_directives : Flag<["-"], "fno-use-line-directives">, Group<f_Group>;

def ffreestanding : Flag<["-"], "ffreestanding">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Assert that the compilation takes place in a freestanding environment">;
def fgnu_keywords : Flag<["-"], "fgnu-keywords">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Allow GNU-extension keywords regardless of language standard">;
def fgnu89_inline : Flag<["-"], "fgnu89-inline">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Use the gnu89 inline semantics">;
def fno_gnu89_inline : Flag<["-"], "fno-gnu89-inline">, Group<f_Group>;
def fgnu_runtime : Flag<["-"], "fgnu-runtime">, Group<f_Group>,
  HelpText<"Generate output compatible with the standard GNU Objective-C runtime">;
def fheinous_gnu_extensions : Flag<["-"], "fheinous-gnu-extensions">, Flags<[CC1Option]>;
def filelist : Separate<["-"], "filelist">, Flags<[LinkerInput]>;
def : Flag<["-"], "findirect-virtual-calls">, Alias<fapple_kext>;
def finline_functions : Flag<["-"], "finline-functions">, Group<f_clang_Group>, Flags<[CC1Option]>,
  HelpText<"Inline suitable functions">;
def finline_hint_functions: Flag<["-"], "finline-hint-functions">, Group<f_clang_Group>, Flags<[CC1Option]>,
  HelpText<"Inline functions wich are (explicitly or implicitly) marked inline">;
def finline : Flag<["-"], "finline">, Group<clang_ignored_f_Group>;
def fexperimental_new_pass_manager : Flag<["-"], "fexperimental-new-pass-manager">,
  Group<f_clang_Group>, Flags<[CC1Option]>,
  HelpText<"Enables an experimental new pass manager in LLVM.">;
def finput_charset_EQ : Joined<["-"], "finput-charset=">, Group<f_Group>;
def fexec_charset_EQ : Joined<["-"], "fexec-charset=">, Group<f_Group>;
def finstrument_functions : Flag<["-"], "finstrument-functions">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Generate calls to instrument function entry and exit">;

def fxray_instrument : Flag<["-"], "fxray-instrument">, Group<f_Group>,
  Flags<[CC1Option]>,
  HelpText<"Generate XRay instrumentation sleds on function entry and exit">;
def fnoxray_instrument : Flag<["-"], "fno-xray-instrument">, Group<f_Group>,
  Flags<[CC1Option]>;

def fxray_instruction_threshold_EQ :
  JoinedOrSeparate<["-"], "fxray-instruction-threshold=">,
  Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Sets the minimum function size to instrument with XRay">;
def fxray_instruction_threshold_ :
  JoinedOrSeparate<["-"], "fxray-instruction-threshold">,
  Group<f_Group>, Flags<[CC1Option]>;

def flat__namespace : Flag<["-"], "flat_namespace">;
def flax_vector_conversions : Flag<["-"], "flax-vector-conversions">, Group<f_Group>;
def flimited_precision_EQ : Joined<["-"], "flimited-precision=">, Group<f_Group>;
def flto_EQ : Joined<["-"], "flto=">, Flags<[CC1Option]>, Group<f_Group>,
  HelpText<"Set LTO mode to either 'full' or 'thin'">;
def flto : Flag<["-"], "flto">, Flags<[CoreOption, CC1Option]>, Group<f_Group>,
  HelpText<"Enable LTO in 'full' mode">;
def fno_lto : Flag<["-"], "fno-lto">, Group<f_Group>,
  HelpText<"Disable LTO mode (default)">;
def flto_jobs_EQ : Joined<["-"], "flto-jobs=">,
  Flags<[CC1Option]>, Group<f_Group>,
  HelpText<"Controls the backend parallelism of -flto=thin (default "
           "of 0 means the number of threads will be derived from "
           "the number of CPUs detected)">;
def fthinlto_index_EQ : Joined<["-"], "fthinlto-index=">,
  Flags<[CC1Option]>, Group<f_Group>,
  HelpText<"Perform ThinLTO importing using provided function summary index">;
def fmacro_backtrace_limit_EQ : Joined<["-"], "fmacro-backtrace-limit=">,
                                Group<f_Group>, Flags<[DriverOption, CoreOption]>;
def fmerge_all_constants : Flag<["-"], "fmerge-all-constants">, Group<f_Group>;
def fmessage_length_EQ : Joined<["-"], "fmessage-length=">, Group<f_Group>;
def fms_extensions : Flag<["-"], "fms-extensions">, Group<f_Group>, Flags<[CC1Option, CoreOption]>,
  HelpText<"Accept some non-standard constructs supported by the Microsoft compiler">;
def fms_compatibility : Flag<["-"], "fms-compatibility">, Group<f_Group>, Flags<[CC1Option, CoreOption]>,
  HelpText<"Enable full Microsoft Visual C++ compatibility">;
def fms_volatile : Joined<["-"], "fms-volatile">, Group<f_Group>, Flags<[CC1Option]>;
def fmsc_version : Joined<["-"], "fmsc-version=">, Group<f_Group>, Flags<[DriverOption, CoreOption]>,
  HelpText<"Microsoft compiler version number to report in _MSC_VER (0 = don't define it (default))">;
def fms_compatibility_version
    : Joined<["-"], "fms-compatibility-version=">,
      Group<f_Group>,
      Flags<[ CC1Option, CoreOption ]>,
      HelpText<"Dot-separated value representing the Microsoft compiler "
               "version number to report in _MSC_VER (0 = don't define it "
               "(default))">;
def fdelayed_template_parsing : Flag<["-"], "fdelayed-template-parsing">, Group<f_Group>,
  HelpText<"Parse templated function definitions at the end of the "
           "translation unit">,  Flags<[CC1Option, CoreOption]>;
def fms_memptr_rep_EQ : Joined<["-"], "fms-memptr-rep=">, Group<f_Group>, Flags<[CC1Option]>;
def fmodules_cache_path : Joined<["-"], "fmodules-cache-path=">, Group<i_Group>,
  Flags<[DriverOption, CC1Option]>, MetaVarName<"<directory>">,
  HelpText<"Specify the module cache path">;
def fmodules_user_build_path : Separate<["-"], "fmodules-user-build-path">, Group<i_Group>,
  Flags<[DriverOption, CC1Option]>, MetaVarName<"<directory>">,
  HelpText<"Specify the module user build path">;
def fprebuilt_module_path : Joined<["-"], "fprebuilt-module-path=">, Group<i_Group>,
  Flags<[DriverOption, CC1Option]>, MetaVarName<"<directory>">,
  HelpText<"Specify the prebuilt module path">;
def fmodules_prune_interval : Joined<["-"], "fmodules-prune-interval=">, Group<i_Group>,
  Flags<[CC1Option]>, MetaVarName<"<seconds>">,
  HelpText<"Specify the interval (in seconds) between attempts to prune the module cache">;
def fmodules_prune_after : Joined<["-"], "fmodules-prune-after=">, Group<i_Group>,
  Flags<[CC1Option]>, MetaVarName<"<seconds>">,
  HelpText<"Specify the interval (in seconds) after which a module file will be considered unused">;
def fmodules_search_all : Flag <["-"], "fmodules-search-all">, Group<f_Group>,
  Flags<[DriverOption, CC1Option]>,
  HelpText<"Search even non-imported modules to resolve references">;
def fbuild_session_timestamp : Joined<["-"], "fbuild-session-timestamp=">,
  Group<i_Group>, Flags<[CC1Option]>, MetaVarName<"<time since Epoch in seconds>">,
  HelpText<"Time when the current build session started">;
def fbuild_session_file : Joined<["-"], "fbuild-session-file=">,
  Group<i_Group>, MetaVarName<"<file>">,
  HelpText<"Use the last modification time of <file> as the build session timestamp">;
def fmodules_validate_once_per_build_session : Flag<["-"], "fmodules-validate-once-per-build-session">,
  Group<i_Group>, Flags<[CC1Option]>,
  HelpText<"Don't verify input files for the modules if the module has been "
           "successfully validated or loaded during this build session">;
def fmodules_disable_diagnostic_validation : Flag<["-"], "fmodules-disable-diagnostic-validation">,
  Group<i_Group>, Flags<[CC1Option]>,
  HelpText<"Disable validation of the diagnostic options when loading the module">;
def fmodules_validate_system_headers : Flag<["-"], "fmodules-validate-system-headers">,
  Group<i_Group>, Flags<[CC1Option]>,
  HelpText<"Validate the system headers that a module depends on when loading the module">;
def fmodules : Flag <["-"], "fmodules">, Group<f_Group>,
  Flags<[DriverOption, CC1Option]>,
  HelpText<"Enable the 'modules' language feature">;
def fimplicit_module_maps : Flag <["-"], "fimplicit-module-maps">, Group<f_Group>,
  Flags<[DriverOption, CC1Option]>,
  HelpText<"Implicitly search the file system for module map files.">;
def fmodules_ts : Flag <["-"], "fmodules-ts">, Group<f_Group>,
  Flags<[CC1Option]>, HelpText<"Enable support for the C++ Modules TS">;
def fmodule_maps : Flag <["-"], "fmodule-maps">, Alias<fimplicit_module_maps>;
def fmodule_name_EQ : Joined<["-"], "fmodule-name=">, Group<f_Group>,
  Flags<[DriverOption,CC1Option]>, MetaVarName<"<name>">,
  HelpText<"Specify the name of the module to build">;
def fmodule_name : Separate<["-"], "fmodule-name">, Alias<fmodule_name_EQ>;
def fmodule_implementation_of : Separate<["-"], "fmodule-implementation-of">,
  Flags<[CC1Option]>, Alias<fmodule_name_EQ>;
def fmodule_map_file : Joined<["-"], "fmodule-map-file=">,
  Group<f_Group>, Flags<[DriverOption,CC1Option]>, MetaVarName<"<file>">,
  HelpText<"Load this module map file">;
def fmodule_file : Joined<["-"], "fmodule-file=">,
  Group<f_Group>, Flags<[DriverOption,CC1Option]>,
  HelpText<"Load this precompiled module file">, MetaVarName<"<file>">;
def fmodules_ignore_macro : Joined<["-"], "fmodules-ignore-macro=">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Ignore the definition of the given macro when building and loading modules">;
def fmodules_decluse : Flag <["-"], "fmodules-decluse">, Group<f_Group>,
  Flags<[DriverOption,CC1Option]>,
  HelpText<"Require declaration of modules used within a module">;
def fmodules_strict_decluse : Flag <["-"], "fmodules-strict-decluse">, Group<f_Group>,
  Flags<[DriverOption,CC1Option]>,
  HelpText<"Like -fmodules-decluse but requires all headers to be in modules">;
def fno_modules_search_all : Flag <["-"], "fno-modules-search-all">, Group<f_Group>,
  Flags<[DriverOption, CC1Option]>;
def fno_implicit_modules :
  Flag <["-"], "fno-implicit-modules">,
  Group<f_Group>, Flags<[DriverOption, CC1Option]>;
def fretain_comments_from_system_headers : Flag<["-"], "fretain-comments-from-system-headers">, Group<f_Group>, Flags<[CC1Option]>;

def fmudflapth : Flag<["-"], "fmudflapth">, Group<f_Group>;
def fmudflap : Flag<["-"], "fmudflap">, Group<f_Group>;
def fnested_functions : Flag<["-"], "fnested-functions">, Group<f_Group>;
def fnext_runtime : Flag<["-"], "fnext-runtime">, Group<f_Group>;
def fno_access_control : Flag<["-"], "fno-access-control">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Disable C++ access control">;
def fno_apple_pragma_pack : Flag<["-"], "fno-apple-pragma-pack">, Group<f_Group>;
def fno_asm : Flag<["-"], "fno-asm">, Group<f_Group>;
def fno_asynchronous_unwind_tables : Flag<["-"], "fno-asynchronous-unwind-tables">, Group<f_Group>;
def fno_assume_sane_operator_new : Flag<["-"], "fno-assume-sane-operator-new">, Group<f_Group>,
  HelpText<"Don't assume that C++'s global operator new can't alias any pointer">,
  Flags<[CC1Option]>;
def fno_blocks : Flag<["-"], "fno-blocks">, Group<f_Group>;
def fno_borland_extensions : Flag<["-"], "fno-borland-extensions">, Group<f_Group>;
def fno_builtin : Flag<["-"], "fno-builtin">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Disable implicit builtin knowledge of functions">;
def fno_builtin_ : Joined<["-"], "fno-builtin-">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Disable implicit builtin knowledge of a specific function">;
def fno_caret_diagnostics : Flag<["-"], "fno-caret-diagnostics">, Group<f_Group>,
 Flags<[CC1Option]>;
def fno_color_diagnostics : Flag<["-"], "fno-color-diagnostics">, Group<f_Group>,
  Flags<[CoreOption, CC1Option]>;
def fno_diagnostics_color : Flag<["-"], "fno-diagnostics-color">, Group<f_Group>,
  Flags<[CoreOption, DriverOption]>;
def fno_common : Flag<["-"], "fno-common">, Group<f_Group>, Flags<[CC1Option]>,
    HelpText<"Compile common globals like normal definitions">;
def fno_constant_cfstrings : Flag<["-"], "fno-constant-cfstrings">, Group<f_Group>,
  Flags<[CC1Option]>,
  HelpText<"Disable creation of CodeFoundation-type constant strings">;
def fno_cxx_exceptions: Flag<["-"], "fno-cxx-exceptions">, Group<f_Group>;
def fno_cxx_modules : Flag <["-"], "fno-cxx-modules">, Group<f_Group>,
  Flags<[DriverOption]>;
def fno_diagnostics_fixit_info : Flag<["-"], "fno-diagnostics-fixit-info">, Group<f_Group>,
  Flags<[CC1Option]>, HelpText<"Do not include fixit information in diagnostics">;
def fno_diagnostics_show_hotness : Flag<["-"], "fno-diagnostics-show-hotness">, Group<f_Group>;
def fno_diagnostics_show_option : Flag<["-"], "fno-diagnostics-show-option">, Group<f_Group>;
def fno_diagnostics_show_note_include_stack : Flag<["-"], "fno-diagnostics-show-note-include-stack">,
    Flags<[CC1Option]>, Group<f_Group>;
def fno_declspec : Flag<["-"], "fno-declspec">, Group<f_clang_Group>,
  HelpText<"Disallow __declspec as a keyword">, Flags<[CC1Option]>;
def fno_dollars_in_identifiers : Flag<["-"], "fno-dollars-in-identifiers">, Group<f_Group>,
  HelpText<"Disallow '$' in identifiers">, Flags<[CC1Option]>;
def fno_elide_constructors : Flag<["-"], "fno-elide-constructors">, Group<f_Group>,
  HelpText<"Disable C++ copy constructor elision">, Flags<[CC1Option]>;
def fno_eliminate_unused_debug_symbols : Flag<["-"], "fno-eliminate-unused-debug-symbols">, Group<f_Group>;
def fno_exceptions : Flag<["-"], "fno-exceptions">, Group<f_Group>;
def fno_gnu_keywords : Flag<["-"], "fno-gnu-keywords">, Group<f_Group>, Flags<[CC1Option]>;
def fno_inline_functions : Flag<["-"], "fno-inline-functions">, Group<f_clang_Group>, Flags<[CC1Option]>;
def fno_inline : Flag<["-"], "fno-inline">, Group<f_clang_Group>, Flags<[CC1Option]>;
def fno_experimental_new_pass_manager : Flag<["-"], "fno-experimental-new-pass-manager">,
  Group<f_clang_Group>, Flags<[CC1Option]>,
  HelpText<"Disables an experimental new pass manager in LLVM.">;
def fveclib : Joined<["-"], "fveclib=">, Group<f_Group>, Flags<[CC1Option]>,
    HelpText<"Use the given vector functions library">;
def fno_lax_vector_conversions : Flag<["-"], "fno-lax-vector-conversions">, Group<f_Group>,
  HelpText<"Disallow implicit conversions between vectors with a different number of elements or different element types">, Flags<[CC1Option]>;
def fno_merge_all_constants : Flag<["-"], "fno-merge-all-constants">, Group<f_Group>,
    Flags<[CC1Option]>, HelpText<"Disallow merging of constants">;
def fno_modules : Flag <["-"], "fno-modules">, Group<f_Group>,
  Flags<[DriverOption]>;
def fno_implicit_module_maps : Flag <["-"], "fno-implicit-module-maps">, Group<f_Group>,
  Flags<[DriverOption]>;
def fno_module_maps : Flag <["-"], "fno-module-maps">, Alias<fno_implicit_module_maps>;
def fno_modules_decluse : Flag <["-"], "fno-modules-decluse">, Group<f_Group>,
  Flags<[DriverOption]>;
def fno_modules_strict_decluse : Flag <["-"], "fno-strict-modules-decluse">, Group<f_Group>,
  Flags<[DriverOption]>;
def fimplicit_modules : Flag <["-"], "fimplicit-modules">, Group<f_Group>,
  Flags<[DriverOption]>;
def fmodule_file_deps : Flag <["-"], "fmodule-file-deps">, Group<f_Group>,
  Flags<[DriverOption]>;
def fno_module_file_deps : Flag <["-"], "fno-module-file-deps">, Group<f_Group>,
  Flags<[DriverOption]>;
def fno_ms_extensions : Flag<["-"], "fno-ms-extensions">, Group<f_Group>,
  Flags<[CoreOption]>;
def fno_ms_compatibility : Flag<["-"], "fno-ms-compatibility">, Group<f_Group>,
  Flags<[CoreOption]>;
def fno_delayed_template_parsing : Flag<["-"], "fno-delayed-template-parsing">, Group<f_Group>,
  HelpText<"Disable delayed template parsing">,
  Flags<[DriverOption, CoreOption]>;
def fno_objc_exceptions: Flag<["-"], "fno-objc-exceptions">, Group<f_Group>;
def fno_objc_legacy_dispatch : Flag<["-"], "fno-objc-legacy-dispatch">, Group<f_Group>;
def fno_objc_weak : Flag<["-"], "fno-objc-weak">, Group<f_Group>, Flags<[CC1Option]>;
def fno_omit_frame_pointer : Flag<["-"], "fno-omit-frame-pointer">, Group<f_Group>;
def fno_operator_names : Flag<["-"], "fno-operator-names">, Group<f_Group>,
  HelpText<"Do not treat C++ operator name keywords as synonyms for operators">,
  Flags<[CC1Option]>;
def fno_pascal_strings : Flag<["-"], "fno-pascal-strings">, Group<f_Group>;
def fno_rtti : Flag<["-"], "fno-rtti">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Disable generation of rtti information">;
def fno_short_enums : Flag<["-"], "fno-short-enums">, Group<f_Group>;
def fno_show_column : Flag<["-"], "fno-show-column">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Do not include column number on diagnostics">;
def fno_show_source_location : Flag<["-"], "fno-show-source-location">, Group<f_Group>,
  Flags<[CC1Option]>, HelpText<"Do not include source location information with diagnostics">;
def fdiagnostics_absolute_paths : Flag<["-"], "fdiagnostics-absolute-paths">, Group<f_Group>,
  Flags<[CC1Option, CoreOption]>, HelpText<"Print absolute paths in diagnostics">;
def fno_spell_checking : Flag<["-"], "fno-spell-checking">, Group<f_Group>,
  Flags<[CC1Option]>, HelpText<"Disable spell-checking">;
def fno_stack_protector : Flag<["-"], "fno-stack-protector">, Group<f_Group>,
  HelpText<"Disable the use of stack protectors">;
def fno_strict_aliasing : Flag<["-"], "fno-strict-aliasing">, Group<f_Group>,
  Flags<[DriverOption, CoreOption]>;
def fstruct_path_tbaa : Flag<["-"], "fstruct-path-tbaa">, Group<f_Group>;
def fno_struct_path_tbaa : Flag<["-"], "fno-struct-path-tbaa">, Group<f_Group>;
def fno_strict_enums : Flag<["-"], "fno-strict-enums">, Group<f_Group>;
def fno_strict_vtable_pointers: Flag<["-"], "fno-strict-vtable-pointers">,
  Group<f_Group>;
def fno_strict_overflow : Flag<["-"], "fno-strict-overflow">, Group<f_Group>;
def fno_threadsafe_statics : Flag<["-"], "fno-threadsafe-statics">, Group<f_Group>,
  Flags<[CC1Option]>, HelpText<"Do not emit code to make initialization of local statics thread safe">;
def fno_use_cxa_atexit : Flag<["-"], "fno-use-cxa-atexit">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Don't use __cxa_atexit for calling destructors">;
def fno_use_init_array : Flag<["-"], "fno-use-init-array">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Don't use .init_array instead of .ctors">;
def fno_unit_at_a_time : Flag<["-"], "fno-unit-at-a-time">, Group<f_Group>;
def fno_unwind_tables : Flag<["-"], "fno-unwind-tables">, Group<f_Group>;
def fno_verbose_asm : Flag<["-"], "fno-verbose-asm">, Group<f_Group>;
def fno_working_directory : Flag<["-"], "fno-working-directory">, Group<f_Group>;
def fno_wrapv : Flag<["-"], "fno-wrapv">, Group<f_Group>;
def fno_zero_initialized_in_bss : Flag<["-"], "fno-zero-initialized-in-bss">, Group<f_Group>;
def fobjc_arc : Flag<["-"], "fobjc-arc">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Synthesize retain and release calls for Objective-C pointers">;
def fno_objc_arc : Flag<["-"], "fno-objc-arc">, Group<f_Group>;
def fobjc_arc_exceptions : Flag<["-"], "fobjc-arc-exceptions">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Use EH-safe code when synthesizing retains and releases in -fobjc-arc">;
def fno_objc_arc_exceptions : Flag<["-"], "fno-objc-arc-exceptions">, Group<f_Group>;
def fobjc_atdefs : Flag<["-"], "fobjc-atdefs">, Group<clang_ignored_f_Group>;
def fobjc_call_cxx_cdtors : Flag<["-"], "fobjc-call-cxx-cdtors">, Group<clang_ignored_f_Group>;
def fobjc_exceptions: Flag<["-"], "fobjc-exceptions">, Group<f_Group>,
  HelpText<"Enable Objective-C exceptions">, Flags<[CC1Option]>;
def fapplication_extension : Flag<["-"], "fapplication-extension">,
  Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Restrict code to those available for App Extensions">;
def fno_application_extension : Flag<["-"], "fno-application-extension">,
  Group<f_Group>;
def frelaxed_template_template_args : Flag<["-"], "frelaxed-template-template-args">,
  Flags<[CC1Option]>, HelpText<"Enable C++17 relaxed template template argument matching">,
  Group<f_Group>;
def fno_relaxed_template_template_args : Flag<["-"], "fno-relaxed-template-template-args">,
  Group<f_Group>;
def fsized_deallocation : Flag<["-"], "fsized-deallocation">, Flags<[CC1Option]>,
  HelpText<"Enable C++14 sized global deallocation functions">, Group<f_Group>;
def fno_sized_deallocation: Flag<["-"], "fno-sized-deallocation">, Group<f_Group>;
def faligned_allocation : Flag<["-"], "faligned-allocation">, Flags<[CC1Option]>,
  HelpText<"Enable C++17 aligned allocation functions">, Group<f_Group>;
def fno_aligned_allocation: Flag<["-"], "fno-aligned-allocation">,
  Group<f_Group>, Flags<[CC1Option]>;
def fnew_alignment_EQ : Joined<["-"], "fnew-alignment=">,
  HelpText<"Specifies the largest alignment guaranteed by '::operator new(size_t)'">,
  MetaVarName<"<align>">, Group<f_Group>, Flags<[CC1Option]>;
def : Separate<["-"], "fnew-alignment">, Alias<fnew_alignment_EQ>;
def : Flag<["-"], "faligned-new">, Alias<faligned_allocation>;
def : Flag<["-"], "fno-aligned-new">, Alias<fno_aligned_allocation>;
def faligned_new_EQ : Joined<["-"], "faligned-new=">;

def fobjc_legacy_dispatch : Flag<["-"], "fobjc-legacy-dispatch">, Group<f_Group>;
def fobjc_new_property : Flag<["-"], "fobjc-new-property">, Group<clang_ignored_f_Group>;
def fobjc_infer_related_result_type : Flag<["-"], "fobjc-infer-related-result-type">,
                                      Group<f_Group>;
def fno_objc_infer_related_result_type : Flag<["-"],
  "fno-objc-infer-related-result-type">, Group<f_Group>,
  HelpText<
    "do not infer Objective-C related result type based on method family">,
  Flags<[CC1Option]>;
def fobjc_link_runtime: Flag<["-"], "fobjc-link-runtime">, Group<f_Group>;
def fobjc_weak : Flag<["-"], "fobjc-weak">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Enable ARC-style weak references in Objective-C">;

// Objective-C ABI options.
def fobjc_runtime_EQ : Joined<["-"], "fobjc-runtime=">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Specify the target Objective-C runtime kind and version">;
def fobjc_abi_version_EQ : Joined<["-"], "fobjc-abi-version=">, Group<f_Group>;
def fobjc_nonfragile_abi_version_EQ : Joined<["-"], "fobjc-nonfragile-abi-version=">, Group<f_Group>;
def fobjc_nonfragile_abi : Flag<["-"], "fobjc-nonfragile-abi">, Group<f_Group>;
def fno_objc_nonfragile_abi : Flag<["-"], "fno-objc-nonfragile-abi">, Group<f_Group>;

def fobjc_sender_dependent_dispatch : Flag<["-"], "fobjc-sender-dependent-dispatch">, Group<f_Group>;
def fomit_frame_pointer : Flag<["-"], "fomit-frame-pointer">, Group<f_Group>;
def fopenmp : Flag<["-"], "fopenmp">, Group<f_Group>, Flags<[CC1Option, NoArgumentUnused]>;
def fno_openmp : Flag<["-"], "fno-openmp">, Group<f_Group>, Flags<[NoArgumentUnused]>;
def fopenmp_version_EQ : Joined<["-"], "fopenmp-version=">, Group<f_Group>, Flags<[CC1Option, NoArgumentUnused]>;
def fopenmp_EQ : Joined<["-"], "fopenmp=">, Group<f_Group>;
def fopenmp_use_tls : Flag<["-"], "fopenmp-use-tls">, Group<f_Group>, Flags<[NoArgumentUnused]>;
def fnoopenmp_use_tls : Flag<["-"], "fnoopenmp-use-tls">, Group<f_Group>, Flags<[CC1Option, NoArgumentUnused]>;
def fopenmp_targets_EQ : CommaJoined<["-"], "fopenmp-targets=">, Flags<[DriverOption, CC1Option]>,
  HelpText<"Specify comma-separated list of triples OpenMP offloading targets to be supported">;
def fopenmp_dump_offload_linker_script : Flag<["-"], "fopenmp-dump-offload-linker-script">, Group<f_Group>, 
  Flags<[NoArgumentUnused]>;
def fno_optimize_sibling_calls : Flag<["-"], "fno-optimize-sibling-calls">, Group<f_Group>;
def foptimize_sibling_calls : Flag<["-"], "foptimize-sibling-calls">, Group<f_Group>;
def force__cpusubtype__ALL : Flag<["-"], "force_cpusubtype_ALL">;
def force__flat__namespace : Flag<["-"], "force_flat_namespace">;
def force__load : Separate<["-"], "force_load">;
def force_addr : Joined<["-"], "fforce-addr">, Group<clang_ignored_f_Group>;
def foutput_class_dir_EQ : Joined<["-"], "foutput-class-dir=">, Group<f_Group>;
def fpack_struct : Flag<["-"], "fpack-struct">, Group<f_Group>;
def fno_pack_struct : Flag<["-"], "fno-pack-struct">, Group<f_Group>;
def fpack_struct_EQ : Joined<["-"], "fpack-struct=">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Specify the default maximum struct packing alignment">;
def fmax_type_align_EQ : Joined<["-"], "fmax-type-align=">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Specify the maximum alignment to enforce on pointers lacking an explicit alignment">;
def fno_max_type_align : Flag<["-"], "fno-max-type-align">, Group<f_Group>;
def fpascal_strings : Flag<["-"], "fpascal-strings">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Recognize and construct Pascal-style string literals">;
def fpcc_struct_return : Flag<["-"], "fpcc-struct-return">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Override the default ABI to return all structs on the stack">;
def fpch_preprocess : Flag<["-"], "fpch-preprocess">, Group<f_Group>;
def fpic : Flag<["-"], "fpic">, Group<f_Group>;
def fno_pic : Flag<["-"], "fno-pic">, Group<f_Group>;
def fpie : Flag<["-"], "fpie">, Group<f_Group>;
def fno_pie : Flag<["-"], "fno-pie">, Group<f_Group>;
def fropi : Flag<["-"], "fropi">, Group<f_Group>;
def fno_ropi : Flag<["-"], "fno-ropi">, Group<f_Group>;
def frwpi : Flag<["-"], "frwpi">, Group<f_Group>;
def fno_rwpi : Flag<["-"], "fno-rwpi">, Group<f_Group>;
def fplugin_EQ : Joined<["-"], "fplugin=">, Group<f_Group>, Flags<[DriverOption]>, MetaVarName<"<dsopath>">,
  HelpText<"Load the named plugin (dynamic shared object)">;
def fpreserve_as_comments : Flag<["-"], "fpreserve-as-comments">, Group<f_Group>;
def fno_preserve_as_comments : Flag<["-"], "fno-preserve-as-comments">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Do not preserve comments in inline assembly">;
def fprofile_arcs : Flag<["-"], "fprofile-arcs">, Group<f_Group>;
def fno_profile_arcs : Flag<["-"], "fno-profile-arcs">, Group<f_Group>;
def framework : Separate<["-"], "framework">, Flags<[LinkerInput]>;
def frandom_seed_EQ : Joined<["-"], "frandom-seed=">, Group<clang_ignored_f_Group>;
def freg_struct_return : Flag<["-"], "freg-struct-return">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Override the default ABI to return small structs in registers">;
def frtti : Flag<["-"], "frtti">, Group<f_Group>;
def : Flag<["-"], "fsched-interblock">, Group<clang_ignored_f_Group>;
def fshort_enums : Flag<["-"], "fshort-enums">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Allocate to an enum type only as many bytes as it needs for the declared range of possible values">;
def fshort_wchar : Flag<["-"], "fshort-wchar">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Force wchar_t to be a short unsigned int">;
def fno_short_wchar : Flag<["-"], "fno-short-wchar">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Force wchar_t to be an unsigned int">;
def fshow_overloads_EQ : Joined<["-"], "fshow-overloads=">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Which overload candidates to show when overload resolution fails: "
           "best|all; defaults to all">;
def fshow_column : Flag<["-"], "fshow-column">, Group<f_Group>, Flags<[CC1Option]>;
def fshow_source_location : Flag<["-"], "fshow-source-location">, Group<f_Group>;
def fspell_checking : Flag<["-"], "fspell-checking">, Group<f_Group>;
def fspell_checking_limit_EQ : Joined<["-"], "fspell-checking-limit=">, Group<f_Group>;
def fsigned_bitfields : Flag<["-"], "fsigned-bitfields">, Group<f_Group>;
def fsigned_char : Flag<["-"], "fsigned-char">, Group<f_Group>;
def fno_signed_char : Flag<["-"], "fno-signed-char">, Group<f_Group>,
    Flags<[CC1Option]>, HelpText<"Char is unsigned">;
def fsplit_stack : Flag<["-"], "fsplit-stack">, Group<f_Group>;
def fstack_protector_all : Flag<["-"], "fstack-protector-all">, Group<f_Group>,
  HelpText<"Force the usage of stack protectors for all functions">;
def fstack_protector_strong : Flag<["-"], "fstack-protector-strong">, Group<f_Group>,
  HelpText<"Use a strong heuristic to apply stack protectors to functions">;
def fstack_protector : Flag<["-"], "fstack-protector">, Group<f_Group>,
  HelpText<"Enable stack protectors for functions potentially vulnerable to stack smashing">;
def fstandalone_debug : Flag<["-"], "fstandalone-debug">, Group<f_Group>, Flags<[CoreOption]>,
  HelpText<"Emit full debug info for all types used by the program">;
def fno_standalone_debug : Flag<["-"], "fno-standalone-debug">, Group<f_Group>, Flags<[CoreOption]>,
  HelpText<"Limit debug information produced to reduce size of debug binary">;
def flimit_debug_info : Flag<["-"], "flimit-debug-info">, Flags<[CoreOption]>, Alias<fno_standalone_debug>;
def fno_limit_debug_info : Flag<["-"], "fno-limit-debug-info">, Flags<[CoreOption]>, Alias<fstandalone_debug>;
def fstrict_aliasing : Flag<["-"], "fstrict-aliasing">, Group<f_Group>,
  Flags<[DriverOption, CoreOption]>;
def fstrict_enums : Flag<["-"], "fstrict-enums">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Enable optimizations based on the strict definition of an enum's "
           "value range">;
def fstrict_vtable_pointers: Flag<["-"], "fstrict-vtable-pointers">,
  Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Enable optimizations based on the strict rules for overwriting "
             "polymorphic C++ objects">;
def fstrict_overflow : Flag<["-"], "fstrict-overflow">, Group<f_Group>;
def fsyntax_only : Flag<["-"], "fsyntax-only">,
  Flags<[DriverOption,CoreOption,CC1Option]>, Group<Action_Group>;
def ftabstop_EQ : Joined<["-"], "ftabstop=">, Group<f_Group>;
def ftemplate_depth_EQ : Joined<["-"], "ftemplate-depth=">, Group<f_Group>;
def ftemplate_depth_ : Joined<["-"], "ftemplate-depth-">, Group<f_Group>;
def ftemplate_backtrace_limit_EQ : Joined<["-"], "ftemplate-backtrace-limit=">,
                                   Group<f_Group>;
def foperator_arrow_depth_EQ : Joined<["-"], "foperator-arrow-depth=">,
                               Group<f_Group>;

def fsave_optimization_record : Flag<["-"], "fsave-optimization-record">,
  Group<f_Group>, HelpText<"Generate a YAML optimization record file">;
def fno_save_optimization_record : Flag<["-"], "fno-save-optimization-record">,
  Group<f_Group>, Flags<[NoArgumentUnused]>;
def foptimization_record_file_EQ : Joined<["-"], "foptimization-record-file=">,
  Group<f_Group>,
  HelpText<"Specify the file name of any generated YAML optimization record">;

def ftest_coverage : Flag<["-"], "ftest-coverage">, Group<f_Group>;
def fvectorize : Flag<["-"], "fvectorize">, Group<f_Group>,
  HelpText<"Enable the loop vectorization passes">;
def fno_vectorize : Flag<["-"], "fno-vectorize">, Group<f_Group>;
def : Flag<["-"], "ftree-vectorize">, Alias<fvectorize>;
def : Flag<["-"], "fno-tree-vectorize">, Alias<fno_vectorize>;
def fslp_vectorize : Flag<["-"], "fslp-vectorize">, Group<f_Group>,
  HelpText<"Enable the superword-level parallelism vectorization passes">;
def fno_slp_vectorize : Flag<["-"], "fno-slp-vectorize">, Group<f_Group>;
def fslp_vectorize_aggressive : Flag<["-"], "fslp-vectorize-aggressive">, Group<f_Group>,
  HelpText<"Enable the BB vectorization passes">;
def fno_slp_vectorize_aggressive : Flag<["-"], "fno-slp-vectorize-aggressive">, Group<f_Group>;
def : Flag<["-"], "ftree-slp-vectorize">, Alias<fslp_vectorize>;
def : Flag<["-"], "fno-tree-slp-vectorize">, Alias<fno_slp_vectorize>;
def Wlarge_by_value_copy_def : Flag<["-"], "Wlarge-by-value-copy">,
  HelpText<"Warn if a function definition returns or accepts an object larger "
           "in bytes than a given value">, Flags<[HelpHidden]>;
def Wlarge_by_value_copy_EQ : Joined<["-"], "Wlarge-by-value-copy=">, Flags<[CC1Option]>;

// These "special" warning flags are effectively processed as f_Group flags by the driver:
// Just silence warnings about -Wlarger-than for now.
def Wlarger_than_EQ : Joined<["-"], "Wlarger-than=">, Group<clang_ignored_f_Group>;
def Wlarger_than_ : Joined<["-"], "Wlarger-than-">, Alias<Wlarger_than_EQ>;
def Wframe_larger_than_EQ : Joined<["-"], "Wframe-larger-than=">, Group<f_Group>, Flags<[DriverOption]>;

def : Flag<["-"], "fterminated-vtables">, Alias<fapple_kext>;
def fthreadsafe_statics : Flag<["-"], "fthreadsafe-statics">, Group<f_Group>;
def ftime_report : Flag<["-"], "ftime-report">, Group<f_Group>, Flags<[CC1Option]>;
def ftlsmodel_EQ : Joined<["-"], "ftls-model=">, Group<f_Group>, Flags<[CC1Option]>;
def ftrapv : Flag<["-"], "ftrapv">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Trap on integer overflow">;
def ftrapv_handler_EQ : Joined<["-"], "ftrapv-handler=">, Group<f_Group>,
  MetaVarName<"<function name>">,
  HelpText<"Specify the function to be called on overflow">;
def ftrapv_handler : Separate<["-"], "ftrapv-handler">, Group<f_Group>, Flags<[CC1Option]>;
def ftrap_function_EQ : Joined<["-"], "ftrap-function=">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Issue call to specified function rather than a trap instruction">;
def funit_at_a_time : Flag<["-"], "funit-at-a-time">, Group<f_Group>;
def funroll_loops : Flag<["-"], "funroll-loops">, Group<f_Group>,
  HelpText<"Turn on loop unroller">, Flags<[CC1Option]>;
def fno_unroll_loops : Flag<["-"], "fno-unroll-loops">, Group<f_Group>,
  HelpText<"Turn off loop unroller">, Flags<[CC1Option]>;
def freroll_loops : Flag<["-"], "freroll-loops">, Group<f_Group>,
  HelpText<"Turn on loop reroller">, Flags<[CC1Option]>;
def fno_reroll_loops : Flag<["-"], "fno-reroll-loops">, Group<f_Group>,
  HelpText<"Turn off loop reroller">;
def ftrigraphs : Flag<["-"], "ftrigraphs">, Group<f_Group>,
  HelpText<"Process trigraph sequences">, Flags<[CC1Option]>;
def fno_trigraphs : Flag<["-"], "fno-trigraphs">, Group<f_Group>,
  HelpText<"Do not process trigraph sequences">, Flags<[CC1Option]>;
def funsigned_bitfields : Flag<["-"], "funsigned-bitfields">, Group<f_Group>;
def funsigned_char : Flag<["-"], "funsigned-char">, Group<f_Group>;
def fno_unsigned_char : Flag<["-"], "fno-unsigned-char">;
def funwind_tables : Flag<["-"], "funwind-tables">, Group<f_Group>;
def fuse_cxa_atexit : Flag<["-"], "fuse-cxa-atexit">, Group<f_Group>;
def fuse_init_array : Flag<["-"], "fuse-init-array">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Use .init_array instead of .ctors">;
def fno_var_tracking : Flag<["-"], "fno-var-tracking">, Group<clang_ignored_f_Group>;
def fverbose_asm : Flag<["-"], "fverbose-asm">, Group<f_Group>;
def fvisibility_EQ : Joined<["-"], "fvisibility=">, Group<f_Group>,
  HelpText<"Set the default symbol visibility for all global declarations">;
def fvisibility_inlines_hidden : Flag<["-"], "fvisibility-inlines-hidden">, Group<f_Group>,
  HelpText<"Give inline C++ member functions default visibility by default">,
  Flags<[CC1Option]>;
def fvisibility_ms_compat : Flag<["-"], "fvisibility-ms-compat">, Group<f_Group>,
  HelpText<"Give global types 'default' visibility and global functions and "
           "variables 'hidden' visibility by default">;
def fwhole_program_vtables : Flag<["-"], "fwhole-program-vtables">, Group<f_Group>,
  Flags<[CC1Option]>,
  HelpText<"Enables whole-program vtable optimization. Requires -flto">;
def fno_whole_program_vtables : Flag<["-"], "fno-whole-program-vtables">, Group<f_Group>;
def fwrapv : Flag<["-"], "fwrapv">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Treat signed integer overflow as two's complement">;
def fwritable_strings : Flag<["-"], "fwritable-strings">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Store string literals as writable data">;
def fzero_initialized_in_bss : Flag<["-"], "fzero-initialized-in-bss">, Group<f_Group>;
def ffunction_sections : Flag<["-"], "ffunction-sections">, Group<f_Group>,
  Flags<[CC1Option]>,
  HelpText<"Place each function in its own section (ELF Only)">;
def fno_function_sections : Flag<["-"], "fno-function-sections">,
  Group<f_Group>, Flags<[CC1Option]>;
def fdata_sections : Flag <["-"], "fdata-sections">, Group<f_Group>,
 Flags<[CC1Option]>, HelpText<"Place each data in its own section (ELF Only)">;
def fno_data_sections : Flag <["-"], "fno-data-sections">, Group<f_Group>,
  Flags<[CC1Option]>;

def funique_section_names : Flag <["-"], "funique-section-names">,
  Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Use unique names for text and data sections (ELF Only)">;
def fno_unique_section_names : Flag <["-"], "fno-unique-section-names">,
  Group<f_Group>, Flags<[CC1Option]>;

def fstrict_return : Flag<["-"], "fstrict-return">, Group<f_Group>,
  Flags<[CC1Option]>,
  HelpText<"Always treat control flow paths that fall off the end of a non-void"
           "function as unreachable">;
def fno_strict_return : Flag<["-"], "fno-strict-return">, Group<f_Group>,
  Flags<[CC1Option]>;

def fallow_editor_placeholders : Flag<["-"], "fallow-editor-placeholders">,
  Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Treat editor placeholders as valid source code">;
def fno_allow_editor_placeholders : Flag<["-"],
  "fno-allow-editor-placeholders">, Group<f_Group>;

def fdebug_types_section: Flag <["-"], "fdebug-types-section">, Group<f_Group>,
  Flags<[CC1Option]>, HelpText<"Place debug types in their own section (ELF Only)">;
def fno_debug_types_section: Flag<["-"], "fno-debug-types-section">, Group<f_Group>,
  Flags<[CC1Option]>;
def fsplit_dwarf_inlining: Flag <["-"], "fsplit-dwarf-inlining">, Group<f_Group>,
  Flags<[CC1Option]>, HelpText<"Place debug types in their own section (ELF Only)">;
def fno_split_dwarf_inlining: Flag<["-"], "fno-split-dwarf-inlining">, Group<f_Group>,
  Flags<[CC1Option]>;
def fdebug_prefix_map_EQ
  : Joined<["-"], "fdebug-prefix-map=">, Group<f_Group>, Flags<[CC1Option]>,
    HelpText<"remap file source paths in debug info">;
def g_Flag : Flag<["-"], "g">, Group<g_Group>,
  HelpText<"Generate source-level debug information">;
def gline_tables_only : Flag<["-"], "gline-tables-only">, Group<gN_Group>,
  Flags<[CoreOption]>, HelpText<"Emit debug line number tables only">;
def gmlt : Flag<["-"], "gmlt">, Alias<gline_tables_only>;
def g0 : Flag<["-"], "g0">, Group<gN_Group>;
def g1 : Flag<["-"], "g1">, Group<gN_Group>, Alias<gline_tables_only>;
def g2 : Flag<["-"], "g2">, Group<gN_Group>;
def g3 : Flag<["-"], "g3">, Group<gN_Group>;
def ggdb : Flag<["-"], "ggdb">, Group<gTune_Group>;
def ggdb0 : Flag<["-"], "ggdb0">, Group<ggdbN_Group>;
def ggdb1 : Flag<["-"], "ggdb1">, Group<ggdbN_Group>;
def ggdb2 : Flag<["-"], "ggdb2">, Group<ggdbN_Group>;
def ggdb3 : Flag<["-"], "ggdb3">, Group<ggdbN_Group>;
def glldb : Flag<["-"], "glldb">, Group<gTune_Group>;
def gsce : Flag<["-"], "gsce">, Group<gTune_Group>;
def gdwarf_2 : Flag<["-"], "gdwarf-2">, Group<g_Group>,
  HelpText<"Generate source-level debug information with dwarf version 2">;
def gdwarf_3 : Flag<["-"], "gdwarf-3">, Group<g_Group>,
  HelpText<"Generate source-level debug information with dwarf version 3">;
def gdwarf_4 : Flag<["-"], "gdwarf-4">, Group<g_Group>,
  HelpText<"Generate source-level debug information with dwarf version 4">;
def gdwarf_5 : Flag<["-"], "gdwarf-5">, Group<g_Group>,
  HelpText<"Generate source-level debug information with dwarf version 5">;
def gcodeview : Flag<["-"], "gcodeview">,
  HelpText<"Generate CodeView debug information">,
  Flags<[CC1Option, CC1AsOption, CoreOption]>;
// Equivalent to our default dwarf version. Forces usual dwarf emission when
// CodeView is enabled.
def gdwarf : Flag<["-"], "gdwarf">, Alias<gdwarf_4>, Flags<[CoreOption]>;

def gfull : Flag<["-"], "gfull">, Group<g_Group>;
def gused : Flag<["-"], "gused">, Group<g_Group>;
def gstabs : Joined<["-"], "gstabs">, Group<g_Group>, Flags<[Unsupported]>;
def gcoff : Joined<["-"], "gcoff">, Group<g_Group>, Flags<[Unsupported]>;
def gxcoff : Joined<["-"], "gxcoff">, Group<g_Group>, Flags<[Unsupported]>;
def gvms : Joined<["-"], "gvms">, Group<g_Group>, Flags<[Unsupported]>;
def gtoggle : Flag<["-"], "gtoggle">, Group<g_flags_Group>, Flags<[Unsupported]>;
def grecord_gcc_switches : Flag<["-"], "grecord-gcc-switches">, Group<g_flags_Group>;
def gno_record_gcc_switches : Flag<["-"], "gno-record-gcc-switches">,
  Group<g_flags_Group>;
def gstrict_dwarf : Flag<["-"], "gstrict-dwarf">, Group<g_flags_Group>;
def gno_strict_dwarf : Flag<["-"], "gno-strict-dwarf">, Group<g_flags_Group>;
def gcolumn_info : Flag<["-"], "gcolumn-info">, Group<g_flags_Group>, Flags<[CoreOption]>;
def gno_column_info : Flag<["-"], "gno-column-info">, Group<g_flags_Group>, Flags<[CoreOption]>;
def gsplit_dwarf : Flag<["-"], "gsplit-dwarf">, Group<g_flags_Group>;
def ggnu_pubnames : Flag<["-"], "ggnu-pubnames">, Group<g_flags_Group>;
def gdwarf_aranges : Flag<["-"], "gdwarf-aranges">, Group<g_flags_Group>;
def gmodules : Flag <["-"], "gmodules">, Group<gN_Group>,
  HelpText<"Generate debug info with external references to clang modules"
           " or precompiled headers">;
def headerpad__max__install__names : Joined<["-"], "headerpad_max_install_names">;
def help : Flag<["-", "--"], "help">, Flags<[CC1Option,CC1AsOption]>,
  HelpText<"Display available options">;
def index_header_map : Flag<["-"], "index-header-map">, Flags<[CC1Option]>,
  HelpText<"Make the next included directory (-I or -F) an indexer header map">;
def iapinotes_modules : JoinedOrSeparate<["-"], "iapinotes-modules">, Group<clang_i_Group>, Flags<[CC1Option]>,
  HelpText<"Add directory to the API notes search path referenced by module name">, MetaVarName<"<directory>">;
def idirafter : JoinedOrSeparate<["-"], "idirafter">, Group<clang_i_Group>, Flags<[CC1Option]>,
  HelpText<"Add directory to AFTER include search path">;
def iframework : JoinedOrSeparate<["-"], "iframework">, Group<clang_i_Group>, Flags<[CC1Option]>,
  HelpText<"Add directory to SYSTEM framework search path">;
def iframeworkwithsysroot : JoinedOrSeparate<["-"], "iframeworkwithsysroot">,
  Group<clang_i_Group>,
  HelpText<"Add directory to SYSTEM framework search path, "
           "absolute paths are relative to -isysroot">,
  MetaVarName<"<directory>">, Flags<[CC1Option]>;
def imacros : JoinedOrSeparate<["-", "--"], "imacros">, Group<clang_i_Group>, Flags<[CC1Option]>,
  HelpText<"Include macros from file before parsing">, MetaVarName<"<file>">;
def image__base : Separate<["-"], "image_base">;
def include_ : JoinedOrSeparate<["-", "--"], "include">, Group<clang_i_Group>, EnumName<"include">,
    MetaVarName<"<file>">, HelpText<"Include file before parsing">, Flags<[CC1Option]>;
def include_pch : Separate<["-"], "include-pch">, Group<clang_i_Group>, Flags<[CC1Option]>,
  HelpText<"Include precompiled header file">, MetaVarName<"<file>">;
def relocatable_pch : Flag<["-", "--"], "relocatable-pch">, Flags<[CC1Option]>,
  HelpText<"Whether to build a relocatable precompiled header">;
def verify_pch : Flag<["-"], "verify-pch">, Group<Action_Group>, Flags<[CC1Option]>,
  HelpText<"Load and verify that a pre-compiled header file is not stale">;
def init : Separate<["-"], "init">;
def install__name : Separate<["-"], "install_name">;
def iprefix : JoinedOrSeparate<["-"], "iprefix">, Group<clang_i_Group>, Flags<[CC1Option]>,
  HelpText<"Set the -iwithprefix/-iwithprefixbefore prefix">, MetaVarName<"<dir>">;
def iquote : JoinedOrSeparate<["-"], "iquote">, Group<clang_i_Group>, Flags<[CC1Option]>,
  HelpText<"Add directory to QUOTE include search path">, MetaVarName<"<directory>">;
def isysroot : JoinedOrSeparate<["-"], "isysroot">, Group<clang_i_Group>, Flags<[CC1Option]>,
  HelpText<"Set the system root directory (usually /)">, MetaVarName<"<dir>">;
def isystem : JoinedOrSeparate<["-"], "isystem">, Group<clang_i_Group>,
  Flags<[CC1Option]>,
  HelpText<"Add directory to SYSTEM include search path">, MetaVarName<"<directory>">;
def isystem_after : JoinedOrSeparate<["-"], "isystem-after">,
  Group<clang_i_Group>, Flags<[DriverOption]>, MetaVarName<"<directory>">,
  HelpText<"Add directory to end of the SYSTEM include search path">;
def iwithprefixbefore : JoinedOrSeparate<["-"], "iwithprefixbefore">, Group<clang_i_Group>,
  HelpText<"Set directory to include search path with prefix">, MetaVarName<"<dir>">,
  Flags<[CC1Option]>;
def iwithprefix : JoinedOrSeparate<["-"], "iwithprefix">, Group<clang_i_Group>, Flags<[CC1Option]>,
  HelpText<"Set directory to SYSTEM include search path with prefix">, MetaVarName<"<dir>">;
def iwithsysroot : JoinedOrSeparate<["-"], "iwithsysroot">, Group<clang_i_Group>,
  HelpText<"Add directory to SYSTEM include search path, "
           "absolute paths are relative to -isysroot">, MetaVarName<"<directory>">,
  Flags<[CC1Option]>;
def ivfsoverlay : JoinedOrSeparate<["-"], "ivfsoverlay">, Group<clang_i_Group>, Flags<[CC1Option]>,
  HelpText<"Overlay the virtual filesystem described by file over the real file system">;
def i : Joined<["-"], "i">, Group<i_Group>;
def keep__private__externs : Flag<["-"], "keep_private_externs">;
def l : JoinedOrSeparate<["-"], "l">, Flags<[LinkerInput, RenderJoined]>;
def lazy__framework : Separate<["-"], "lazy_framework">, Flags<[LinkerInput]>;
def lazy__library : Separate<["-"], "lazy_library">, Flags<[LinkerInput]>;
def mlittle_endian : Flag<["-"], "mlittle-endian">, Flags<[DriverOption]>;
def EL : Flag<["-"], "EL">, Alias<mlittle_endian>;
def mbig_endian : Flag<["-"], "mbig-endian">, Flags<[DriverOption]>;
def EB : Flag<["-"], "EB">, Alias<mbig_endian>;
def m16 : Flag<["-"], "m16">, Group<m_Group>, Flags<[DriverOption, CoreOption]>;
def m32 : Flag<["-"], "m32">, Group<m_Group>, Flags<[DriverOption, CoreOption]>;
def mqdsp6_compat : Flag<["-"], "mqdsp6-compat">, Group<m_Group>, Flags<[DriverOption,CC1Option]>,
  HelpText<"Enable hexagon-qdsp6 backward compatibility">;
def m3dnowa : Flag<["-"], "m3dnowa">, Group<m_x86_Features_Group>;
def m3dnow : Flag<["-"], "m3dnow">, Group<m_x86_Features_Group>;
def m64 : Flag<["-"], "m64">, Group<m_Group>, Flags<[DriverOption, CoreOption]>;
def mx32 : Flag<["-"], "mx32">, Group<m_Group>, Flags<[DriverOption, CoreOption]>;
def mabi_EQ : Joined<["-"], "mabi=">, Group<m_Group>;
def miamcu : Flag<["-"], "miamcu">, Group<m_Group>, Flags<[DriverOption, CoreOption]>,
  HelpText<"Use Intel MCU ABI">;
def mno_iamcu : Flag<["-"], "mno-iamcu">, Group<m_Group>, Flags<[DriverOption, CoreOption]>;
def malign_functions_EQ : Joined<["-"], "malign-functions=">, Group<clang_ignored_m_Group>;
def malign_loops_EQ : Joined<["-"], "malign-loops=">, Group<clang_ignored_m_Group>;
def malign_jumps_EQ : Joined<["-"], "malign-jumps=">, Group<clang_ignored_m_Group>;
def mfancy_math_387 : Flag<["-"], "mfancy-math-387">, Group<clang_ignored_m_Group>;
def mlong_calls : Flag<["-"], "mlong-calls">, Group<m_Group>,
  HelpText<"Generate branches with extended addressability, usually via indirect jumps.">;
def mno_long_calls : Flag<["-"], "mno-long-calls">, Group<m_Group>,
  HelpText<"Restore the default behaviour of not generating long calls">;
def mexecute_only : Flag<["-"], "mexecute-only">, Group<m_arm_Features_Group>,
  HelpText<"Disallow generation of data access to code sections (ARM only)">;
def mno_execute_only : Flag<["-"], "mno-execute-only">, Group<m_arm_Features_Group>,
  HelpText<"Allow generation of data access to code sections (ARM only)">;
def mpure_code : Flag<["-"], "mpure-code">, Alias<mexecute_only>; // Alias for GCC compatibility
def mno_pure_code : Flag<["-"], "mno-pure-code">, Alias<mno_execute_only>;
def mtvos_version_min_EQ : Joined<["-"], "mtvos-version-min=">, Group<m_Group>;
def mappletvos_version_min_EQ : Joined<["-"], "mappletvos-version-min=">, Alias<mtvos_version_min_EQ>;
def mtvos_simulator_version_min_EQ : Joined<["-"], "mtvos-simulator-version-min=">;
def mappletvsimulator_version_min_EQ : Joined<["-"], "mappletvsimulator-version-min=">, Alias<mtvos_simulator_version_min_EQ>;
def mwatchos_version_min_EQ : Joined<["-"], "mwatchos-version-min=">, Group<m_Group>;
def mwatchos_simulator_version_min_EQ : Joined<["-"], "mwatchos-simulator-version-min=">;
def mwatchsimulator_version_min_EQ : Joined<["-"], "mwatchsimulator-version-min=">, Alias<mwatchos_simulator_version_min_EQ>;
def march_EQ : Joined<["-"], "march=">, Group<m_Group>;
def masm_EQ : Joined<["-"], "masm=">, Group<m_Group>, Flags<[DriverOption]>;
def mcmodel_EQ : Joined<["-"], "mcmodel=">, Group<m_Group>;
def mimplicit_it_EQ : Joined<["-"], "mimplicit-it=">, Group<m_Group>;
def mconstant_cfstrings : Flag<["-"], "mconstant-cfstrings">, Group<clang_ignored_m_Group>;
def mconsole : Joined<["-"], "mconsole">, Group<m_Group>, Flags<[DriverOption]>;
def mwindows : Joined<["-"], "mwindows">, Group<m_Group>, Flags<[DriverOption]>;
def mdll : Joined<["-"], "mdll">, Group<m_Group>, Flags<[DriverOption]>;
def municode : Joined<["-"], "municode">, Group<m_Group>, Flags<[DriverOption]>;
def mthreads : Joined<["-"], "mthreads">, Group<m_Group>, Flags<[DriverOption]>;
def mcpu_EQ : Joined<["-"], "mcpu=">, Group<m_Group>;
def mdynamic_no_pic : Joined<["-"], "mdynamic-no-pic">, Group<m_Group>;
def mfix_and_continue : Flag<["-"], "mfix-and-continue">, Group<clang_ignored_m_Group>;
def mieee_fp : Flag<["-"], "mieee-fp">, Group<clang_ignored_m_Group>;
def minline_all_stringops : Flag<["-"], "minline-all-stringops">, Group<clang_ignored_m_Group>;
def mno_inline_all_stringops : Flag<["-"], "mno-inline-all-stringops">, Group<clang_ignored_m_Group>;
def malign_double : Flag<["-"], "malign-double">, Group<m_Group>, Flags<[CC1Option]>,
  HelpText<"Align doubles to two words in structs (x86 only)">;
def mfloat_abi_EQ : Joined<["-"], "mfloat-abi=">, Group<m_Group>;
def mfpmath_EQ : Joined<["-"], "mfpmath=">, Group<m_Group>;
def mfpu_EQ : Joined<["-"], "mfpu=">, Group<m_Group>;
def mhwdiv_EQ : Joined<["-"], "mhwdiv=">, Group<m_Group>;
def mglobal_merge : Flag<["-"], "mglobal-merge">, Group<m_Group>, Flags<[CC1Option]>,
  HelpText<"Enable merging of globals">;
def mhard_float : Flag<["-"], "mhard-float">, Group<m_Group>;
def miphoneos_version_min_EQ : Joined<["-"], "miphoneos-version-min=">, Group<m_Group>;
def mios_version_min_EQ : Joined<["-"], "mios-version-min=">,
  Alias<miphoneos_version_min_EQ>, HelpText<"Set iOS deployment target">;
def mios_simulator_version_min_EQ : Joined<["-"], "mios-simulator-version-min=">;
def miphonesimulator_version_min_EQ : Joined<["-"], "miphonesimulator-version-min=">, Alias<mios_simulator_version_min_EQ>;
def mkernel : Flag<["-"], "mkernel">, Group<m_Group>;
def mlinker_version_EQ : Joined<["-"], "mlinker-version=">,
  Flags<[DriverOption]>;
def mllvm : Separate<["-"], "mllvm">, Flags<[CC1Option,CC1AsOption,CoreOption]>,
  HelpText<"Additional arguments to forward to LLVM's option processing">;
def mmacosx_version_min_EQ : Joined<["-"], "mmacosx-version-min=">,
  Group<m_Group>, HelpText<"Set Mac OS X deployment target">;
def mmacos_version_min_EQ : Joined<["-"], "mmacos-version-min=">,
  Group<m_Group>, Alias<mmacosx_version_min_EQ>;
def mms_bitfields : Flag<["-"], "mms-bitfields">, Group<m_Group>, Flags<[CC1Option]>,
  HelpText<"Set the default structure layout to be compatible with the Microsoft compiler standard">;
def mno_ms_bitfields : Flag<["-"], "mno-ms-bitfields">, Group<m_Group>,
  HelpText<"Do not set the default structure layout to be compatible with the Microsoft compiler standard">;
def mstackrealign : Flag<["-"], "mstackrealign">, Group<m_Group>, Flags<[CC1Option]>,
  HelpText<"Force realign the stack at entry to every function">;
def mstack_alignment : Joined<["-"], "mstack-alignment=">, Group<m_Group>, Flags<[CC1Option]>,
  HelpText<"Set the stack alignment">;
def mstack_probe_size : Joined<["-"], "mstack-probe-size=">, Group<m_Group>, Flags<[CC1Option]>,
  HelpText<"Set the stack probe size">;
def mthread_model : Separate<["-"], "mthread-model">, Group<m_Group>, Flags<[CC1Option]>,
  HelpText<"The thread model to use, e.g. posix, single (posix by default)">;
def meabi : Separate<["-"], "meabi">, Group<m_Group>, Flags<[CC1Option]>,
  HelpText<"Set EABI type, e.g. 4, 5 or gnu (default depends on triple)">;

def mmmx : Flag<["-"], "mmmx">, Group<m_x86_Features_Group>;
def mno_3dnowa : Flag<["-"], "mno-3dnowa">, Group<m_x86_Features_Group>;
def mno_3dnow : Flag<["-"], "mno-3dnow">, Group<m_x86_Features_Group>;
def mno_constant_cfstrings : Flag<["-"], "mno-constant-cfstrings">, Group<m_Group>;
def mno_global_merge : Flag<["-"], "mno-global-merge">, Group<m_Group>, Flags<[CC1Option]>,
  HelpText<"Disable merging of globals">;
def mno_mmx : Flag<["-"], "mno-mmx">, Group<m_x86_Features_Group>;
def mno_pascal_strings : Flag<["-"], "mno-pascal-strings">,
  Alias<fno_pascal_strings>;
def mno_red_zone : Flag<["-"], "mno-red-zone">, Group<m_Group>;
def mno_relax_all : Flag<["-"], "mno-relax-all">, Group<m_Group>;
def mno_rtd: Flag<["-"], "mno-rtd">, Group<m_Group>;
def mno_soft_float : Flag<["-"], "mno-soft-float">, Group<m_Group>;
def mno_stackrealign : Flag<["-"], "mno-stackrealign">, Group<m_Group>;
def mno_x87 : Flag<["-"], "mno-x87">, Group<m_x86_Features_Group>;
def mno_80387 : Flag<["-"], "mno-80387">, Alias<mno_x87>;
def mno_sse2 : Flag<["-"], "mno-sse2">, Group<m_x86_Features_Group>;
def mno_sse3 : Flag<["-"], "mno-sse3">, Group<m_x86_Features_Group>;
def mno_sse4a : Flag<["-"], "mno-sse4a">, Group<m_x86_Features_Group>;
def mno_sse4_1 : Flag<["-"], "mno-sse4.1">, Group<m_x86_Features_Group>;
def mno_sse4_2 : Flag<["-"], "mno-sse4.2">, Group<m_x86_Features_Group>;
// -mno-sse4 turns off sse4.1 which has the effect of turning off everything
// later than 4.1. -msse4 turns on 4.2 which has the effect of turning on
// everything earlier than 4.2.
def mno_sse4 : Flag<["-"], "mno-sse4">, Alias<mno_sse4_1>;
def mno_sse : Flag<["-"], "mno-sse">, Group<m_x86_Features_Group>;
def mno_ssse3 : Flag<["-"], "mno-ssse3">, Group<m_x86_Features_Group>;
def mno_aes : Flag<["-"], "mno-aes">, Group<m_x86_Features_Group>;
def mno_avx : Flag<["-"], "mno-avx">, Group<m_x86_Features_Group>;
def mno_avx2 : Flag<["-"], "mno-avx2">, Group<m_x86_Features_Group>;
def mno_avx512f : Flag<["-"], "mno-avx512f">, Group<m_x86_Features_Group>;
def mno_avx512cd : Flag<["-"], "mno-avx512cd">, Group<m_x86_Features_Group>;
def mno_avx512er : Flag<["-"], "mno-avx512er">, Group<m_x86_Features_Group>;
def mno_avx512pf : Flag<["-"], "mno-avx512pf">, Group<m_x86_Features_Group>;
def mno_avx512dq : Flag<["-"], "mno-avx512dq">, Group<m_x86_Features_Group>;
def mno_avx512bw : Flag<["-"], "mno-avx512bw">, Group<m_x86_Features_Group>;
def mno_avx512vl : Flag<["-"], "mno-avx512vl">, Group<m_x86_Features_Group>;
def mno_avx512vbmi : Flag<["-"], "mno-avx512vbmi">, Group<m_x86_Features_Group>;
def mno_avx512ifma : Flag<["-"], "mno-avx512ifma">, Group<m_x86_Features_Group>;
def mno_pclmul : Flag<["-"], "mno-pclmul">, Group<m_x86_Features_Group>;
def mno_lzcnt : Flag<["-"], "mno-lzcnt">, Group<m_x86_Features_Group>;
def mno_rdrnd : Flag<["-"], "mno-rdrnd">, Group<m_x86_Features_Group>;
def mno_fsgsbase : Flag<["-"], "mno-fsgsbase">, Group<m_x86_Features_Group>;
def mno_bmi : Flag<["-"], "mno-bmi">, Group<m_x86_Features_Group>;
def mno_bmi2 : Flag<["-"], "mno-bmi2">, Group<m_x86_Features_Group>;
def mno_popcnt : Flag<["-"], "mno-popcnt">, Group<m_x86_Features_Group>;
def mno_tbm : Flag<["-"], "mno-tbm">, Group<m_x86_Features_Group>;
def mno_fma4 : Flag<["-"], "mno-fma4">, Group<m_x86_Features_Group>;
def mno_fma : Flag<["-"], "mno-fma">, Group<m_x86_Features_Group>;
def mno_xop : Flag<["-"], "mno-xop">, Group<m_x86_Features_Group>;
def mno_f16c : Flag<["-"], "mno-f16c">, Group<m_x86_Features_Group>;
def mno_rtm : Flag<["-"], "mno-rtm">, Group<m_x86_Features_Group>;
def mno_prfchw : Flag<["-"], "mno-prfchw">, Group<m_x86_Features_Group>;
def mno_rdseed : Flag<["-"], "mno-rdseed">, Group<m_x86_Features_Group>;
def mno_adx : Flag<["-"], "mno-adx">, Group<m_x86_Features_Group>;
def mno_sha : Flag<["-"], "mno-sha">, Group<m_x86_Features_Group>;
def mno_cx16 : Flag<["-"], "mno-cx16">, Group<m_x86_Features_Group>;
def mno_fxsr : Flag<["-"], "mno-fxsr">, Group<m_x86_Features_Group>;
def mno_xsave : Flag<["-"], "mno-xsave">, Group<m_x86_Features_Group>;
def mno_xsaveopt : Flag<["-"], "mno-xsaveopt">, Group<m_x86_Features_Group>;
def mno_xsavec : Flag<["-"], "mno-xsavec">, Group<m_x86_Features_Group>;
def mno_xsaves : Flag<["-"], "mno-xsaves">, Group<m_x86_Features_Group>;
def mno_mwaitx : Flag<["-"], "mno-mwaitx">, Group<m_x86_Features_Group>;
def mno_pku : Flag<["-"], "mno-pku">, Group<m_x86_Features_Group>;

def munaligned_access : Flag<["-"], "munaligned-access">, Group<m_arm_Features_Group>,
  HelpText<"Allow memory accesses to be unaligned (AArch32/AArch64 only)">;
def mno_unaligned_access : Flag<["-"], "mno-unaligned-access">, Group<m_arm_Features_Group>,
  HelpText<"Force all memory accesses to be aligned (AArch32/AArch64 only)">;
def mstrict_align : Flag<["-"], "mstrict-align">, Alias<mno_unaligned_access>, Flags<[CC1Option,HelpHidden]>,
  HelpText<"Force all memory accesses to be aligned (same as mno-unaligned-access)">;
def mno_thumb : Flag<["-"], "mno-thumb">, Group<m_arm_Features_Group>;
def mrestrict_it: Flag<["-"], "mrestrict-it">, Group<m_arm_Features_Group>,
  HelpText<"Disallow generation of deprecated IT blocks for ARMv8. It is on by default for ARMv8 Thumb mode.">;
def mno_restrict_it: Flag<["-"], "mno-restrict-it">, Group<m_arm_Features_Group>,
  HelpText<"Allow generation of deprecated IT blocks for ARMv8. It is off by default for ARMv8 Thumb mode">;
def marm : Flag<["-"], "marm">, Alias<mno_thumb>;
def ffixed_r9 : Flag<["-"], "ffixed-r9">, Group<m_arm_Features_Group>,
  HelpText<"Reserve the r9 register (ARM only)">;
def mno_movt : Flag<["-"], "mno-movt">, Group<m_arm_Features_Group>,
  HelpText<"Disallow use of movt/movw pairs (ARM only)">;
def mcrc : Flag<["-"], "mcrc">, Group<m_arm_Features_Group>,
  HelpText<"Allow use of CRC instructions (ARM only)">;
def mnocrc : Flag<["-"], "mnocrc">, Group<m_arm_Features_Group>,
  HelpText<"Disallow use of CRC instructions (ARM only)">;

def mgeneral_regs_only : Flag<["-"], "mgeneral-regs-only">, Group<m_aarch64_Features_Group>,
  HelpText<"Generate code which only uses the general purpose registers (AArch64 only)">;

def mfix_cortex_a53_835769 : Flag<["-"], "mfix-cortex-a53-835769">,
  Group<m_aarch64_Features_Group>,
  HelpText<"Workaround Cortex-A53 erratum 835769 (AArch64 only)">;
def mno_fix_cortex_a53_835769 : Flag<["-"], "mno-fix-cortex-a53-835769">,
  Group<m_aarch64_Features_Group>,
  HelpText<"Don't workaround Cortex-A53 erratum 835769 (AArch64 only)">;
def ffixed_x18 : Flag<["-"], "ffixed-x18">, Group<m_aarch64_Features_Group>,
  HelpText<"Reserve the x18 register (AArch64 only)">;

def msimd128 : Flag<["-"], "msimd128">, Group<m_wasm_Features_Group>;
def mno_simd128 : Flag<["-"], "mno-simd128">, Group<m_wasm_Features_Group>;

def mamdgpu_debugger_abi : Joined<["-"], "mamdgpu-debugger-abi=">,
  Flags<[HelpHidden]>,
  Group<m_Group>,
  HelpText<"Generate additional code for specified <version> of debugger ABI (AMDGPU only)">,
  MetaVarName<"<version>">;

def mvsx : Flag<["-"], "mvsx">, Group<m_ppc_Features_Group>;
def mno_vsx : Flag<["-"], "mno-vsx">, Group<m_ppc_Features_Group>;
def mpower8_vector : Flag<["-"], "mpower8-vector">,
    Group<m_ppc_Features_Group>;
def mno_power8_vector : Flag<["-"], "mno-power8-vector">,
    Group<m_ppc_Features_Group>;
def mpower9_vector : Flag<["-"], "mpower9-vector">,
    Group<m_ppc_Features_Group>;
def mno_power9_vector : Flag<["-"], "mno-power9-vector">,
    Group<m_ppc_Features_Group>;
def mpower8_crypto : Flag<["-"], "mcrypto">,
    Group<m_ppc_Features_Group>;
def mnopower8_crypto : Flag<["-"], "mno-crypto">,
    Group<m_ppc_Features_Group>;
def mdirect_move : Flag<["-"], "mdirect-move">,
    Group<m_ppc_Features_Group>;
def mnodirect_move : Flag<["-"], "mno-direct-move">,
    Group<m_ppc_Features_Group>;
def mhtm : Flag<["-"], "mhtm">, Group<m_ppc_Features_Group>;
def mno_htm : Flag<["-"], "mno-htm">, Group<m_ppc_Features_Group>;
def mfprnd : Flag<["-"], "mfprnd">, Group<m_ppc_Features_Group>;
def mno_fprnd : Flag<["-"], "mno-fprnd">, Group<m_ppc_Features_Group>;
def mcmpb : Flag<["-"], "mcmpb">, Group<m_ppc_Features_Group>;
def mno_cmpb : Flag<["-"], "mno-cmpb">, Group<m_ppc_Features_Group>;
def misel : Flag<["-"], "misel">, Group<m_ppc_Features_Group>;
def mno_isel : Flag<["-"], "mno-isel">, Group<m_ppc_Features_Group>;
def mmfocrf : Flag<["-"], "mmfocrf">, Group<m_ppc_Features_Group>;
def mmfcrf : Flag<["-"], "mmfcrf">, Alias<mmfocrf>;
def mno_mfocrf : Flag<["-"], "mno-mfocrf">, Group<m_ppc_Features_Group>;
def mno_mfcrf : Flag<["-"], "mno-mfcrf">, Alias<mno_mfocrf>;
def mpopcntd : Flag<["-"], "mpopcntd">, Group<m_ppc_Features_Group>;
def mno_popcntd : Flag<["-"], "mno-popcntd">, Group<m_ppc_Features_Group>;
def mqpx : Flag<["-"], "mqpx">, Group<m_ppc_Features_Group>;
def mno_qpx : Flag<["-"], "mno-qpx">, Group<m_ppc_Features_Group>;
def mcrbits : Flag<["-"], "mcrbits">, Group<m_ppc_Features_Group>;
def mno_crbits : Flag<["-"], "mno-crbits">, Group<m_ppc_Features_Group>;
def minvariant_function_descriptors :
  Flag<["-"], "minvariant-function-descriptors">, Group<m_ppc_Features_Group>;
def mno_invariant_function_descriptors :
  Flag<["-"], "mno-invariant-function-descriptors">,
  Group<m_ppc_Features_Group>;
def mfloat128: Flag<["-"], "mfloat128">,
    Group<m_ppc_Features_Group>;
def mno_float128 : Flag<["-"], "mno-float128">,
    Group<m_ppc_Features_Group>;
def mlongcall: Flag<["-"], "mlongcall">,
    Group<m_ppc_Features_Group>;
def mno_longcall : Flag<["-"], "mno-longcall">,
    Group<m_ppc_Features_Group>;

def faltivec : Flag<["-"], "faltivec">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Enable AltiVec vector initializer syntax">;
def fno_altivec : Flag<["-"], "fno-altivec">, Group<f_Group>, Flags<[CC1Option]>;
def maltivec : Flag<["-"], "maltivec">, Alias<faltivec>;
def mno_altivec : Flag<["-"], "mno-altivec">, Alias<fno_altivec>;

def mvx : Flag<["-"], "mvx">, Group<m_Group>;
def mno_vx : Flag<["-"], "mno-vx">, Group<m_Group>;

def fzvector : Flag<["-"], "fzvector">, Group<f_Group>, Flags<[CC1Option]>,
  HelpText<"Enable System z vector language extension">;
def fno_zvector : Flag<["-"], "fno-zvector">, Group<f_Group>,
  Flags<[CC1Option]>;
def mzvector : Flag<["-"], "mzvector">, Alias<fzvector>;
def mno_zvector : Flag<["-"], "mno-zvector">, Alias<fno_zvector>;

def mbackchain : Flag<["-"], "mbackchain">, Group<m_Group>, Flags<[DriverOption,CC1Option]>,
  HelpText<"Link stack frames through backchain on System Z">;
def mno_backchain : Flag<["-"], "mno-backchain">, Group<m_Group>, Flags<[DriverOption,CC1Option]>;

def mno_warn_nonportable_cfstrings : Flag<["-"], "mno-warn-nonportable-cfstrings">, Group<m_Group>;
def mno_omit_leaf_frame_pointer : Flag<["-"], "mno-omit-leaf-frame-pointer">, Group<m_Group>;
def momit_leaf_frame_pointer : Flag<["-"], "momit-leaf-frame-pointer">, Group<m_Group>,
  HelpText<"Omit frame pointer setup for leaf functions">, Flags<[CC1Option]>;
def moslib_EQ : Joined<["-"], "moslib=">, Group<m_Group>;
def mpascal_strings : Flag<["-"], "mpascal-strings">, Alias<fpascal_strings>;
def mred_zone : Flag<["-"], "mred-zone">, Group<m_Group>;
def mregparm_EQ : Joined<["-"], "mregparm=">, Group<m_Group>;
def mrelax_all : Flag<["-"], "mrelax-all">, Group<m_Group>, Flags<[CC1Option,CC1AsOption]>,
  HelpText<"(integrated-as) Relax all machine instructions">;
def mincremental_linker_compatible : Flag<["-"], "mincremental-linker-compatible">, Group<m_Group>,
  Flags<[CC1Option,CC1AsOption]>,
  HelpText<"(integrated-as) Emit an object file which can be used with an incremental linker">;
def mno_incremental_linker_compatible : Flag<["-"], "mno-incremental-linker-compatible">, Group<m_Group>,
  HelpText<"(integrated-as) Emit an object file which cannot be used with an incremental linker">;
def mrtd : Flag<["-"], "mrtd">, Group<m_Group>, Flags<[CC1Option]>,
  HelpText<"Make StdCall calling convention the default">;
def msmall_data_threshold_EQ : Joined <["-"], "msmall-data-threshold=">, Group<m_Group>;
def msoft_float : Flag<["-"], "msoft-float">, Group<m_Group>, Flags<[CC1Option]>,
  HelpText<"Use software floating point">;
def mno_implicit_float : Flag<["-"], "mno-implicit-float">, Group<m_Group>,
  HelpText<"Don't generate implicit floating point instructions">;
def mimplicit_float : Flag<["-"], "mimplicit-float">, Group<m_Group>;
def mrecip : Flag<["-"], "mrecip">, Group<m_Group>;
def mrecip_EQ : CommaJoined<["-"], "mrecip=">, Group<m_Group>, Flags<[CC1Option]>;
def mpie_copy_relocations : Flag<["-"], "mpie-copy-relocations">, Group<m_Group>,
  Flags<[CC1Option]>,
  HelpText<"Use copy relocations support for PIE builds">;
def mno_pie_copy_relocations : Flag<["-"], "mno-pie-copy-relocations">, Group<m_Group>;
def mx87 : Flag<["-"], "mx87">, Group<m_x86_Features_Group>;
def m80387 : Flag<["-"], "m80387">, Alias<mx87>;
def msse2 : Flag<["-"], "msse2">, Group<m_x86_Features_Group>;
def msse3 : Flag<["-"], "msse3">, Group<m_x86_Features_Group>;
def msse4a : Flag<["-"], "msse4a">, Group<m_x86_Features_Group>;
def msse4_1 : Flag<["-"], "msse4.1">, Group<m_x86_Features_Group>;
def msse4_2 : Flag<["-"], "msse4.2">, Group<m_x86_Features_Group>;
def msse4 : Flag<["-"], "msse4">, Alias<msse4_2>;
def msse : Flag<["-"], "msse">, Group<m_x86_Features_Group>;
def mssse3 : Flag<["-"], "mssse3">, Group<m_x86_Features_Group>;
def maes : Flag<["-"], "maes">, Group<m_x86_Features_Group>;
def mavx : Flag<["-"], "mavx">, Group<m_x86_Features_Group>;
def mavx2 : Flag<["-"], "mavx2">, Group<m_x86_Features_Group>;
def mavx512f : Flag<["-"], "mavx512f">, Group<m_x86_Features_Group>;
def mavx512cd : Flag<["-"], "mavx512cd">, Group<m_x86_Features_Group>;
def mavx512er : Flag<["-"], "mavx512er">, Group<m_x86_Features_Group>;
def mavx512pf : Flag<["-"], "mavx512pf">, Group<m_x86_Features_Group>;
def mavx512dq : Flag<["-"], "mavx512dq">, Group<m_x86_Features_Group>;
def mavx512bw : Flag<["-"], "mavx512bw">, Group<m_x86_Features_Group>;
def mavx512vl : Flag<["-"], "mavx512vl">, Group<m_x86_Features_Group>;
def mavx512vbmi : Flag<["-"], "mavx512vbmi">, Group<m_x86_Features_Group>;
def mavx512ifma : Flag<["-"], "mavx512ifma">, Group<m_x86_Features_Group>;
def mpclmul : Flag<["-"], "mpclmul">, Group<m_x86_Features_Group>;
def mlzcnt : Flag<["-"], "mlzcnt">, Group<m_x86_Features_Group>;
def mrdrnd : Flag<["-"], "mrdrnd">, Group<m_x86_Features_Group>;
def mfsgsbase : Flag<["-"], "mfsgsbase">, Group<m_x86_Features_Group>;
def mbmi : Flag<["-"], "mbmi">, Group<m_x86_Features_Group>;
def mbmi2 : Flag<["-"], "mbmi2">, Group<m_x86_Features_Group>;
def mpopcnt : Flag<["-"], "mpopcnt">, Group<m_x86_Features_Group>;
def mtbm : Flag<["-"], "mtbm">, Group<m_x86_Features_Group>;
def mfma4 : Flag<["-"], "mfma4">, Group<m_x86_Features_Group>;
def mfma : Flag<["-"], "mfma">, Group<m_x86_Features_Group>;
def mxop : Flag<["-"], "mxop">, Group<m_x86_Features_Group>;
def mf16c : Flag<["-"], "mf16c">, Group<m_x86_Features_Group>;
def mrtm : Flag<["-"], "mrtm">, Group<m_x86_Features_Group>;
def mprfchw : Flag<["-"], "mprfchw">, Group<m_x86_Features_Group>;
def mrdseed : Flag<["-"], "mrdseed">, Group<m_x86_Features_Group>;
def mpku : Flag<["-"], "mpku">, Group<m_x86_Features_Group>;
def madx : Flag<["-"], "madx">, Group<m_x86_Features_Group>;
def msha : Flag<["-"], "msha">, Group<m_x86_Features_Group>;
def mcx16 : Flag<["-"], "mcx16">, Group<m_x86_Features_Group>;
def mfxsr : Flag<["-"], "mfxsr">, Group<m_x86_Features_Group>;
def mxsave : Flag<["-"], "mxsave">, Group<m_x86_Features_Group>;
def mxsaveopt : Flag<["-"], "mxsaveopt">, Group<m_x86_Features_Group>;
def mxsavec : Flag<["-"], "mxsavec">, Group<m_x86_Features_Group>;
def mxsaves : Flag<["-"], "mxsaves">, Group<m_x86_Features_Group>;
def mmwaitx : Flag<["-"], "mmwaitx">, Group<m_x86_Features_Group>;
def mips16 : Flag<["-"], "mips16">, Group<m_Group>;
def mno_mips16 : Flag<["-"], "mno-mips16">, Group<m_Group>;
def mmicromips : Flag<["-"], "mmicromips">, Group<m_Group>;
def mno_micromips : Flag<["-"], "mno-micromips">, Group<m_Group>;
def mxgot : Flag<["-"], "mxgot">, Group<m_Group>;
def mno_xgot : Flag<["-"], "mno-xgot">, Group<m_Group>;
def mldc1_sdc1 : Flag<["-"], "mldc1-sdc1">, Group<m_Group>;
def mno_ldc1_sdc1 : Flag<["-"], "mno-ldc1-sdc1">, Group<m_Group>;
def mcheck_zero_division : Flag<["-"], "mcheck-zero-division">, Group<m_Group>;
def mno_check_zero_division : Flag<["-"], "mno-check-zero-division">,
                              Group<m_Group>;
def mcompact_branches_EQ : Joined<["-"], "mcompact-branches=">, Group<m_Group>;
def mdsp : Flag<["-"], "mdsp">, Group<m_Group>;
def mno_dsp : Flag<["-"], "mno-dsp">, Group<m_Group>;
def mdspr2 : Flag<["-"], "mdspr2">, Group<m_Group>;
def mno_dspr2 : Flag<["-"], "mno-dspr2">, Group<m_Group>;
def msingle_float : Flag<["-"], "msingle-float">, Group<m_Group>;
def mdouble_float : Flag<["-"], "mdouble-float">, Group<m_Group>;
def mmsa : Flag<["-"], "mmsa">, Group<m_Group>,
  HelpText<"Enable MSA ASE (MIPS only)">;
def mno_msa : Flag<["-"], "mno-msa">, Group<m_Group>,
  HelpText<"Disable MSA ASE (MIPS only)">;
def mfp64 : Flag<["-"], "mfp64">, Group<m_Group>,
  HelpText<"Use 64-bit floating point registers (MIPS only)">;
def mfp32 : Flag<["-"], "mfp32">, Group<m_Group>,
  HelpText<"Use 32-bit floating point registers (MIPS only)">;
def mnan_EQ : Joined<["-"], "mnan=">, Group<m_Group>;
def mabicalls : Flag<["-"], "mabicalls">, Group<m_Group>,
  HelpText<"Enable SVR4-style position-independent code (Mips only)">;
def mno_abicalls : Flag<["-"], "mno-abicalls">, Group<m_Group>,
  HelpText<"Disable SVR4-style position-independent code (Mips only)">;
def mips1 : Flag<["-"], "mips1">,
  Alias<march_EQ>, AliasArgs<["mips1"]>,
  HelpText<"Equivalent to -march=mips1">, Flags<[HelpHidden]>;
def mips2 : Flag<["-"], "mips2">,
  Alias<march_EQ>, AliasArgs<["mips2"]>,
  HelpText<"Equivalent to -march=mips2">, Flags<[HelpHidden]>;
def mips3 : Flag<["-"], "mips3">,
  Alias<march_EQ>, AliasArgs<["mips3"]>,
  HelpText<"Equivalent to -march=mips3">, Flags<[HelpHidden]>;
def mips4 : Flag<["-"], "mips4">,
  Alias<march_EQ>, AliasArgs<["mips4"]>,
  HelpText<"Equivalent to -march=mips4">, Flags<[HelpHidden]>;
def mips5 : Flag<["-"], "mips5">,
  Alias<march_EQ>, AliasArgs<["mips5"]>,
  HelpText<"Equivalent to -march=mips5">, Flags<[HelpHidden]>;
def mips32 : Flag<["-"], "mips32">,
  Alias<march_EQ>, AliasArgs<["mips32"]>,
  HelpText<"Equivalent to -march=mips32">, Flags<[HelpHidden]>;
def mips32r2 : Flag<["-"], "mips32r2">,
  Alias<march_EQ>, AliasArgs<["mips32r2"]>,
  HelpText<"Equivalent to -march=mips32r2">, Flags<[HelpHidden]>;
def mips32r3 : Flag<["-"], "mips32r3">,
  Alias<march_EQ>, AliasArgs<["mips32r3"]>,
  HelpText<"Equivalent to -march=mips32r3">, Flags<[HelpHidden]>;
def mips32r5 : Flag<["-"], "mips32r5">,
  Alias<march_EQ>, AliasArgs<["mips32r5"]>,
  HelpText<"Equivalent to -march=mips32r5">, Flags<[HelpHidden]>;
def mips32r6 : Flag<["-"], "mips32r6">,
  Alias<march_EQ>, AliasArgs<["mips32r6"]>,
  HelpText<"Equivalent to -march=mips32r6">, Flags<[HelpHidden]>;
def mips64 : Flag<["-"], "mips64">,
  Alias<march_EQ>, AliasArgs<["mips64"]>,
  HelpText<"Equivalent to -march=mips64">, Flags<[HelpHidden]>;
def mips64r2 : Flag<["-"], "mips64r2">,
  Alias<march_EQ>, AliasArgs<["mips64r2"]>,
  HelpText<"Equivalent to -march=mips64r2">, Flags<[HelpHidden]>;
def mips64r3 : Flag<["-"], "mips64r3">,
  Alias<march_EQ>, AliasArgs<["mips64r3"]>,
  HelpText<"Equivalent to -march=mips64r3">, Flags<[HelpHidden]>;
def mips64r5 : Flag<["-"], "mips64r5">,
  Alias<march_EQ>, AliasArgs<["mips64r5"]>,
  HelpText<"Equivalent to -march=mips64r5">, Flags<[HelpHidden]>;
def mips64r6 : Flag<["-"], "mips64r6">,
  Alias<march_EQ>, AliasArgs<["mips64r6"]>,
  HelpText<"Equivalent to -march=mips64r6">, Flags<[HelpHidden]>;
def mfpxx : Flag<["-"], "mfpxx">, Group<m_Group>,
  HelpText<"Avoid FPU mode dependent operations when used with the O32 ABI">,
  Flags<[HelpHidden]>;
def modd_spreg : Flag<["-"], "modd-spreg">, Group<m_Group>,
  HelpText<"Enable odd single-precision floating point registers">,
  Flags<[HelpHidden]>;
def mno_odd_spreg : Flag<["-"], "mno-odd-spreg">, Group<m_Group>,
  HelpText<"Disable odd single-precision floating point registers">,
  Flags<[HelpHidden]>;
def mglibc : Flag<["-"], "mglibc">, Group<m_libc_Group>, Flags<[HelpHidden]>;
def muclibc : Flag<["-"], "muclibc">, Group<m_libc_Group>, Flags<[HelpHidden]>;
def module_file_info : Flag<["-"], "module-file-info">, Flags<[DriverOption,CC1Option]>, Group<Action_Group>,
  HelpText<"Provide information about a particular module file">;
def mthumb : Flag<["-"], "mthumb">, Group<m_Group>;
def mtune_EQ : Joined<["-"], "mtune=">, Group<m_Group>;
def multi__module : Flag<["-"], "multi_module">;
def multiply__defined__unused : Separate<["-"], "multiply_defined_unused">;
def multiply__defined : Separate<["-"], "multiply_defined">;
def mwarn_nonportable_cfstrings : Flag<["-"], "mwarn-nonportable-cfstrings">, Group<m_Group>;
def no_canonical_prefixes : Flag<["-"], "no-canonical-prefixes">, Flags<[HelpHidden]>,
  HelpText<"Use relative instead of canonical paths">;
def no_cpp_precomp : Flag<["-"], "no-cpp-precomp">, Group<clang_ignored_f_Group>;
def no_integrated_cpp : Flag<["-", "--"], "no-integrated-cpp">, Flags<[DriverOption]>;
def no_pedantic : Flag<["-", "--"], "no-pedantic">, Group<pedantic_Group>;
def no__dead__strip__inits__and__terms : Flag<["-"], "no_dead_strip_inits_and_terms">;
def nobuiltininc : Flag<["-"], "nobuiltininc">, Flags<[CC1Option]>,
  HelpText<"Disable builtin #include directories">;
def nocudainc : Flag<["-"], "nocudainc">;
def nocudalib : Flag<["-"], "nocudalib">;
def nodefaultlibs : Flag<["-"], "nodefaultlibs">;
def nofixprebinding : Flag<["-"], "nofixprebinding">;
def nolibc : Flag<["-"], "nolibc">;
def nomultidefs : Flag<["-"], "nomultidefs">;
def nopie : Flag<["-"], "nopie">;
def noprebind : Flag<["-"], "noprebind">;
def noseglinkedit : Flag<["-"], "noseglinkedit">;
def nostartfiles : Flag<["-"], "nostartfiles">;
def nostdinc : Flag<["-"], "nostdinc">;
def nostdlibinc : Flag<["-"], "nostdlibinc">;
def nostdincxx : Flag<["-"], "nostdinc++">, Flags<[CC1Option]>,
  HelpText<"Disable standard #include directories for the C++ standard library">;
def nostdlib : Flag<["-"], "nostdlib">;
def object : Flag<["-"], "object">;
def o : JoinedOrSeparate<["-"], "o">, Flags<[DriverOption, RenderAsInput, CC1Option, CC1AsOption]>,
  HelpText<"Write output to <file>">, MetaVarName<"<file>">;
def pagezero__size : JoinedOrSeparate<["-"], "pagezero_size">;
def pass_exit_codes : Flag<["-", "--"], "pass-exit-codes">, Flags<[Unsupported]>;
def pedantic_errors : Flag<["-", "--"], "pedantic-errors">, Group<pedantic_Group>, Flags<[CC1Option]>;
def pedantic : Flag<["-", "--"], "pedantic">, Group<pedantic_Group>, Flags<[CC1Option]>;
def pg : Flag<["-"], "pg">, HelpText<"Enable mcount instrumentation">, Flags<[CC1Option]>;
def pipe : Flag<["-", "--"], "pipe">,
  HelpText<"Use pipes between commands, when possible">;
def prebind__all__twolevel__modules : Flag<["-"], "prebind_all_twolevel_modules">;
def prebind : Flag<["-"], "prebind">;
def preload : Flag<["-"], "preload">;
def print_file_name_EQ : Joined<["-", "--"], "print-file-name=">,
  HelpText<"Print the full library path of <file>">, MetaVarName<"<file>">;
def print_ivar_layout : Flag<["-"], "print-ivar-layout">, Flags<[CC1Option]>,
  HelpText<"Enable Objective-C Ivar layout bitmap print trace">;
def print_libgcc_file_name : Flag<["-", "--"], "print-libgcc-file-name">,
  HelpText<"Print the library path for the currently used compiler runtime "
           "library (\"libgcc.a\" or \"libclang_rt.builtins.*.a\")">;
def print_multi_directory : Flag<["-", "--"], "print-multi-directory">;
def print_multi_lib : Flag<["-", "--"], "print-multi-lib">;
def print_multi_os_directory : Flag<["-", "--"], "print-multi-os-directory">,
  Flags<[Unsupported]>;
def print_prog_name_EQ : Joined<["-", "--"], "print-prog-name=">,
  HelpText<"Print the full program path of <name>">, MetaVarName<"<name>">;
def print_search_dirs : Flag<["-", "--"], "print-search-dirs">,
  HelpText<"Print the paths used for finding libraries and programs">;
def private__bundle : Flag<["-"], "private_bundle">;
def pthreads : Flag<["-"], "pthreads">;
def pthread : Flag<["-"], "pthread">, Flags<[CC1Option]>,
  HelpText<"Support POSIX threads in generated code">;
def no_pthread : Flag<["-"], "no-pthread">, Flags<[CC1Option]>;
def p : Flag<["-"], "p">;
def pie : Flag<["-"], "pie">;
def read__only__relocs : Separate<["-"], "read_only_relocs">;
def remap : Flag<["-"], "remap">;
def rewrite_objc : Flag<["-"], "rewrite-objc">, Flags<[DriverOption,CC1Option]>,
  HelpText<"Rewrite Objective-C source to C++">, Group<Action_Group>;
def rewrite_legacy_objc : Flag<["-"], "rewrite-legacy-objc">, Flags<[DriverOption]>,
  HelpText<"Rewrite Legacy Objective-C source to C++">;
def rdynamic : Flag<["-"], "rdynamic">;
def resource_dir : Separate<["-"], "resource-dir">,
  Flags<[DriverOption, CC1Option, CoreOption, HelpHidden]>,
  HelpText<"The directory which holds the compiler resource files">;
def resource_dir_EQ : Joined<["-"], "resource-dir=">, Flags<[DriverOption, CoreOption]>,
  Alias<resource_dir>;
def rpath : Separate<["-"], "rpath">, Flags<[LinkerInput]>;
def rtlib_EQ : Joined<["-", "--"], "rtlib=">,
  HelpText<"Compiler runtime library to use">;
def r : Flag<["-"], "r">, Flags<[LinkerInput,NoArgumentUnused]>;
def save_temps_EQ : Joined<["-", "--"], "save-temps=">, Flags<[DriverOption]>,
  HelpText<"Save intermediate compilation results.">;
def save_temps : Flag<["-", "--"], "save-temps">, Flags<[DriverOption]>,
  Alias<save_temps_EQ>, AliasArgs<["cwd"]>,
  HelpText<"Save intermediate compilation results">;
def save_stats_EQ : Joined<["-", "--"], "save-stats=">, Flags<[DriverOption]>,
  HelpText<"Save llvm statistics.">;
def save_stats : Flag<["-", "--"], "save-stats">, Flags<[DriverOption]>,
  Alias<save_stats_EQ>, AliasArgs<["cwd"]>,
  HelpText<"Save llvm statistics.">;
def via_file_asm : Flag<["-", "--"], "via-file-asm">, InternalDebugOpt,
  HelpText<"Write assembly to file for input to assemble jobs">;
def sectalign : MultiArg<["-"], "sectalign", 3>;
def sectcreate : MultiArg<["-"], "sectcreate", 3>;
def sectobjectsymbols : MultiArg<["-"], "sectobjectsymbols", 2>;
def sectorder : MultiArg<["-"], "sectorder", 3>;
def seg1addr : JoinedOrSeparate<["-"], "seg1addr">;
def seg__addr__table__filename : Separate<["-"], "seg_addr_table_filename">;
def seg__addr__table : Separate<["-"], "seg_addr_table">;
def segaddr : MultiArg<["-"], "segaddr", 2>;
def segcreate : MultiArg<["-"], "segcreate", 3>;
def seglinkedit : Flag<["-"], "seglinkedit">;
def segprot : MultiArg<["-"], "segprot", 3>;
def segs__read__only__addr : Separate<["-"], "segs_read_only_addr">;
def segs__read__write__addr : Separate<["-"], "segs_read_write_addr">;
def segs__read__ : Joined<["-"], "segs_read_">;
def shared_libgcc : Flag<["-"], "shared-libgcc">;
def shared : Flag<["-", "--"], "shared">;
def single__module : Flag<["-"], "single_module">;
def specs_EQ : Joined<["-", "--"], "specs=">;
def specs : Separate<["-", "--"], "specs">, Flags<[Unsupported]>;
def static_libgcc : Flag<["-"], "static-libgcc">;
def static_libstdcxx : Flag<["-"], "static-libstdc++">;
def static : Flag<["-", "--"], "static">, Flags<[NoArgumentUnused]>;
def std_default_EQ : Joined<["-"], "std-default=">;
def std_EQ : Joined<["-", "--"], "std=">, Flags<[CC1Option]>,
  Group<CompileOnly_Group>, HelpText<"Language standard to compile for">;
def stdlib_EQ : Joined<["-", "--"], "stdlib=">, Flags<[CC1Option]>,
  HelpText<"C++ standard library to use">;
def sub__library : JoinedOrSeparate<["-"], "sub_library">;
def sub__umbrella : JoinedOrSeparate<["-"], "sub_umbrella">;
def system_header_prefix : Joined<["--"], "system-header-prefix=">,
  Group<clang_i_Group>, Flags<[CC1Option]>, MetaVarName<"<prefix>">,
  HelpText<"Treat all #include paths starting with <prefix> as including a "
           "system header.">;
def : Separate<["--"], "system-header-prefix">, Alias<system_header_prefix>;
def no_system_header_prefix : Joined<["--"], "no-system-header-prefix=">,
  Group<clang_i_Group>, Flags<[CC1Option]>, MetaVarName<"<prefix>">,
  HelpText<"Treat all #include paths starting with <prefix> as not including a "
           "system header.">;
def : Separate<["--"], "no-system-header-prefix">, Alias<no_system_header_prefix>;
def s : Flag<["-"], "s">;
def target : Joined<["--"], "target=">, Flags<[DriverOption, CoreOption]>,
  HelpText<"Generate code for the given target">;
def gcc_toolchain : Joined<["--"], "gcc-toolchain=">, Flags<[DriverOption]>,
  HelpText<"Use the gcc toolchain at the given directory">;
def time : Flag<["-"], "time">,
  HelpText<"Time individual commands">;
def traditional_cpp : Flag<["-", "--"], "traditional-cpp">, Flags<[CC1Option]>,
  HelpText<"Enable some traditional CPP emulation">;
def traditional : Flag<["-", "--"], "traditional">;
def trigraphs : Flag<["-", "--"], "trigraphs">, Alias<ftrigraphs>,
  HelpText<"Process trigraph sequences">;
def twolevel__namespace__hints : Flag<["-"], "twolevel_namespace_hints">;
def twolevel__namespace : Flag<["-"], "twolevel_namespace">;
def t : Flag<["-"], "t">;
def umbrella : Separate<["-"], "umbrella">;
def undefined : JoinedOrSeparate<["-"], "undefined">, Group<u_Group>;
def undef : Flag<["-"], "undef">, Group<u_Group>, Flags<[CC1Option]>,
  HelpText<"undef all system defines">;
def unexported__symbols__list : Separate<["-"], "unexported_symbols_list">;
def u : JoinedOrSeparate<["-"], "u">, Group<u_Group>;
def v : Flag<["-"], "v">, Flags<[CC1Option, CoreOption]>,
  HelpText<"Show commands to run and use verbose output">;
def verify_debug_info : Flag<["--"], "verify-debug-info">, Flags<[DriverOption]>,
  HelpText<"Verify the binary representation of debug output">;
def weak_l : Joined<["-"], "weak-l">, Flags<[LinkerInput]>;
def weak__framework : Separate<["-"], "weak_framework">, Flags<[LinkerInput]>;
def weak__library : Separate<["-"], "weak_library">, Flags<[LinkerInput]>;
def weak__reference__mismatches : Separate<["-"], "weak_reference_mismatches">;
def whatsloaded : Flag<["-"], "whatsloaded">;
def whyload : Flag<["-"], "whyload">;
def w : Flag<["-"], "w">, HelpText<"Suppress all warnings">, Flags<[CC1Option]>;
def x : JoinedOrSeparate<["-"], "x">, Flags<[DriverOption,CC1Option]>,
  HelpText<"Treat subsequent input files as having type <language>">,
  MetaVarName<"<language>">;
def y : Joined<["-"], "y">;

def fintegrated_as : Flag<["-"], "fintegrated-as">, Flags<[DriverOption]>,
                     Group<f_Group>, HelpText<"Enable the integrated assembler">;
def fno_integrated_as : Flag<["-"], "fno-integrated-as">,
                        Flags<[CC1Option, DriverOption]>, Group<f_Group>,
                        HelpText<"Disable the integrated assembler">;
def : Flag<["-"], "integrated-as">, Alias<fintegrated_as>, Flags<[DriverOption]>;
def : Flag<["-"], "no-integrated-as">, Alias<fno_integrated_as>,
      Flags<[CC1Option, DriverOption]>;

def working_directory : JoinedOrSeparate<["-"], "working-directory">, Flags<[CC1Option]>,
  HelpText<"Resolve file paths relative to the specified directory">;
def working_directory_EQ : Joined<["-"], "working-directory=">, Flags<[CC1Option]>,
  Alias<working_directory>;

// Double dash options, which are usually an alias for one of the previous
// options.

def _mhwdiv_EQ : Joined<["--"], "mhwdiv=">, Alias<mhwdiv_EQ>;
def _mhwdiv : Separate<["--"], "mhwdiv">, Alias<mhwdiv_EQ>;
def _CLASSPATH_EQ : Joined<["--"], "CLASSPATH=">, Alias<fclasspath_EQ>;
def _CLASSPATH : Separate<["--"], "CLASSPATH">, Alias<fclasspath_EQ>;
def _all_warnings : Flag<["--"], "all-warnings">, Alias<Wall>;
def _analyze_auto : Flag<["--"], "analyze-auto">, Flags<[DriverOption]>;
def _analyzer_no_default_checks : Flag<["--"], "analyzer-no-default-checks">, Flags<[DriverOption]>;
def _analyzer_output : JoinedOrSeparate<["--"], "analyzer-output">, Flags<[DriverOption]>,
  HelpText<"Static analyzer report output format (html|plist|plist-multi-file|plist-html|text).">;
def _analyze : Flag<["--"], "analyze">, Flags<[DriverOption, CoreOption]>,
  HelpText<"Run the static analyzer">;
def _assemble : Flag<["--"], "assemble">, Alias<S>;
def _assert_EQ : Joined<["--"], "assert=">, Alias<A>;
def _assert : Separate<["--"], "assert">, Alias<A>;
def _bootclasspath_EQ : Joined<["--"], "bootclasspath=">, Alias<fbootclasspath_EQ>;
def _bootclasspath : Separate<["--"], "bootclasspath">, Alias<fbootclasspath_EQ>;
def _classpath_EQ : Joined<["--"], "classpath=">, Alias<fclasspath_EQ>;
def _classpath : Separate<["--"], "classpath">, Alias<fclasspath_EQ>;
def _comments_in_macros : Flag<["--"], "comments-in-macros">, Alias<CC>;
def _comments : Flag<["--"], "comments">, Alias<C>;
def _compile : Flag<["--"], "compile">, Alias<c>;
def _constant_cfstrings : Flag<["--"], "constant-cfstrings">;
def _debug_EQ : Joined<["--"], "debug=">, Alias<g_Flag>;
def _debug : Flag<["--"], "debug">, Alias<g_Flag>;
def _define_macro_EQ : Joined<["--"], "define-macro=">, Alias<D>;
def _define_macro : Separate<["--"], "define-macro">, Alias<D>;
def _dependencies : Flag<["--"], "dependencies">, Alias<M>;
def _dyld_prefix_EQ : Joined<["--"], "dyld-prefix=">;
def _dyld_prefix : Separate<["--"], "dyld-prefix">, Alias<_dyld_prefix_EQ>;
def _encoding_EQ : Joined<["--"], "encoding=">, Alias<fencoding_EQ>;
def _encoding : Separate<["--"], "encoding">, Alias<fencoding_EQ>;
def _entry : Flag<["--"], "entry">, Alias<e>;
def _extdirs_EQ : Joined<["--"], "extdirs=">, Alias<fextdirs_EQ>;
def _extdirs : Separate<["--"], "extdirs">, Alias<fextdirs_EQ>;
def _extra_warnings : Flag<["--"], "extra-warnings">, Alias<W_Joined>;
def _for_linker_EQ : Joined<["--"], "for-linker=">, Alias<Xlinker>;
def _for_linker : Separate<["--"], "for-linker">, Alias<Xlinker>;
def _force_link_EQ : Joined<["--"], "force-link=">, Alias<u>;
def _force_link : Separate<["--"], "force-link">, Alias<u>;
def _help_hidden : Flag<["--"], "help-hidden">;
def _imacros_EQ : Joined<["--"], "imacros=">, Alias<imacros>;
def _include_barrier : Flag<["--"], "include-barrier">, Alias<I_>;
def _include_directory_after_EQ : Joined<["--"], "include-directory-after=">, Alias<idirafter>;
def _include_directory_after : Separate<["--"], "include-directory-after">, Alias<idirafter>;
def _include_directory_EQ : Joined<["--"], "include-directory=">, Alias<I>;
def _include_directory : Separate<["--"], "include-directory">, Alias<I>;
def _include_prefix_EQ : Joined<["--"], "include-prefix=">, Alias<iprefix>;
def _include_prefix : Separate<["--"], "include-prefix">, Alias<iprefix>;
def _include_with_prefix_after_EQ : Joined<["--"], "include-with-prefix-after=">, Alias<iwithprefix>;
def _include_with_prefix_after : Separate<["--"], "include-with-prefix-after">, Alias<iwithprefix>;
def _include_with_prefix_before_EQ : Joined<["--"], "include-with-prefix-before=">, Alias<iwithprefixbefore>;
def _include_with_prefix_before : Separate<["--"], "include-with-prefix-before">, Alias<iwithprefixbefore>;
def _include_with_prefix_EQ : Joined<["--"], "include-with-prefix=">, Alias<iwithprefix>;
def _include_with_prefix : Separate<["--"], "include-with-prefix">, Alias<iwithprefix>;
def _include_EQ : Joined<["--"], "include=">, Alias<include_>;
def _language_EQ : Joined<["--"], "language=">, Alias<x>;
def _language : Separate<["--"], "language">, Alias<x>;
def _library_directory_EQ : Joined<["--"], "library-directory=">, Alias<L>;
def _library_directory : Separate<["--"], "library-directory">, Alias<L>;
def _no_line_commands : Flag<["--"], "no-line-commands">, Alias<P>;
def _no_standard_includes : Flag<["--"], "no-standard-includes">, Alias<nostdinc>;
def _no_standard_libraries : Flag<["--"], "no-standard-libraries">, Alias<nostdlib>;
def _no_undefined : Flag<["--"], "no-undefined">, Flags<[LinkerInput]>;
def _no_warnings : Flag<["--"], "no-warnings">, Alias<w>;
def _optimize_EQ : Joined<["--"], "optimize=">, Alias<O>;
def _optimize : Flag<["--"], "optimize">, Alias<O>;
def _output_class_directory_EQ : Joined<["--"], "output-class-directory=">, Alias<foutput_class_dir_EQ>;
def _output_class_directory : Separate<["--"], "output-class-directory">, Alias<foutput_class_dir_EQ>;
def _output_EQ : Joined<["--"], "output=">, Alias<o>;
def _output : Separate<["--"], "output">, Alias<o>;
def _param : Separate<["--"], "param">, Group<CompileOnly_Group>;
def _param_EQ : Joined<["--"], "param=">, Alias<_param>;
def _precompile : Flag<["--"], "precompile">, Flags<[DriverOption]>,
  Group<Action_Group>, HelpText<"Only precompile the input">;
def _prefix_EQ : Joined<["--"], "prefix=">, Alias<B>;
def _prefix : Separate<["--"], "prefix">, Alias<B>;
def _preprocess : Flag<["--"], "preprocess">, Alias<E>;
def _print_diagnostic_categories : Flag<["--"], "print-diagnostic-categories">;
def _print_file_name : Separate<["--"], "print-file-name">, Alias<print_file_name_EQ>;
def _print_missing_file_dependencies : Flag<["--"], "print-missing-file-dependencies">, Alias<MG>;
def _print_prog_name : Separate<["--"], "print-prog-name">, Alias<print_prog_name_EQ>;
def _profile_blocks : Flag<["--"], "profile-blocks">, Alias<a>;
def _profile : Flag<["--"], "profile">, Alias<p>;
def _resource_EQ : Joined<["--"], "resource=">, Alias<fcompile_resource_EQ>;
def _resource : Separate<["--"], "resource">, Alias<fcompile_resource_EQ>;
def _rtlib : Separate<["--"], "rtlib">, Alias<rtlib_EQ>;
def _serialize_diags : Separate<["-", "--"], "serialize-diagnostics">, Flags<[DriverOption]>,
  HelpText<"Serialize compiler diagnostics to a file">;
// We give --version different semantics from -version.
def _version : Flag<["--"], "version">,  Flags<[CC1Option]>;
def _signed_char : Flag<["--"], "signed-char">, Alias<fsigned_char>;
def _std : Separate<["--"], "std">, Alias<std_EQ>;
def _stdlib : Separate<["--"], "stdlib">, Alias<stdlib_EQ>;
def _sysroot_EQ : Joined<["--"], "sysroot=">;
def _sysroot : Separate<["--"], "sysroot">, Alias<_sysroot_EQ>;
def _target_help : Flag<["--"], "target-help">;
def _trace_includes : Flag<["--"], "trace-includes">, Alias<H>;
def _undefine_macro_EQ : Joined<["--"], "undefine-macro=">, Alias<U>;
def _undefine_macro : Separate<["--"], "undefine-macro">, Alias<U>;
def _unsigned_char : Flag<["--"], "unsigned-char">, Alias<funsigned_char>;
def _user_dependencies : Flag<["--"], "user-dependencies">, Alias<MM>;
def _verbose : Flag<["--"], "verbose">, Alias<v>;
def _warn__EQ : Joined<["--"], "warn-=">, Alias<W_Joined>;
def _warn_ : Joined<["--"], "warn-">, Alias<W_Joined>;
def _write_dependencies : Flag<["--"], "write-dependencies">, Alias<MD>;
def _write_user_dependencies : Flag<["--"], "write-user-dependencies">, Alias<MMD>;
def _ : Joined<["--"], "">, Flags<[Unsupported]>;

def mieee_rnd_near : Flag<["-"], "mieee-rnd-near">, Group<m_hexagon_Features_Group>;
def mv4 : Flag<["-"], "mv4">, Group<m_hexagon_Features_Group>,
          Alias<mcpu_EQ>, AliasArgs<["hexagonv4"]>;
def mv5 : Flag<["-"], "mv5">, Group<m_hexagon_Features_Group>, Alias<mcpu_EQ>,
          AliasArgs<["hexagonv5"]>;
def mv55 : Flag<["-"], "mv55">, Group<m_hexagon_Features_Group>,
           Alias<mcpu_EQ>, AliasArgs<["hexagonv55"]>;
def mv60 : Flag<["-"], "mv60">, Group<m_hexagon_Features_Group>,
           Alias<mcpu_EQ>, AliasArgs<["hexagonv60"]>;
def mhexagon_hvx : Flag<["-"], "mhvx">, Group<m_hexagon_Features_Group>,
    Flags<[CC1Option]>, HelpText<"Enable Hexagon Vector eXtensions">;
def mno_hexagon_hvx : Flag<["-"], "mno-hvx">, Group<m_hexagon_Features_Group>,
    Flags<[CC1Option]>, HelpText<"Disable Hexagon Vector eXtensions">;
def mhexagon_hvx_double : Flag<["-"], "mhvx-double">, Group<m_hexagon_Features_Group>,
    Flags<[CC1Option]>, HelpText<"Enable Hexagon Double Vector eXtensions">;
def mno_hexagon_hvx_double : Flag<["-"], "mno-hvx-double">, Group<m_hexagon_Features_Group>,
    Flags<[CC1Option]>, HelpText<"Disable Hexagon Double Vector eXtensions">;

// These are legacy user-facing driver-level option spellings. They are always
// aliases for options that are spelled using the more common Unix / GNU flag
// style of double-dash and equals-joined flags.
def gcc_toolchain_legacy_spelling : Separate<["-"], "gcc-toolchain">, Alias<gcc_toolchain>;
def target_legacy_spelling : Separate<["-"], "target">, Alias<target>;

// Special internal option to handle -Xlinker --no-demangle.
def Z_Xlinker__no_demangle : Flag<["-"], "Z-Xlinker-no-demangle">,
    Flags<[Unsupported, NoArgumentUnused]>;

// Special internal option to allow forwarding arbitrary arguments to linker.
def Zlinker_input : Separate<["-"], "Zlinker-input">,
    Flags<[Unsupported, NoArgumentUnused]>;

// Reserved library options.
def Z_reserved_lib_stdcxx : Flag<["-"], "Z-reserved-lib-stdc++">,
    Flags<[LinkerInput, NoArgumentUnused, Unsupported]>, Group<reserved_lib_Group>;
def Z_reserved_lib_cckext : Flag<["-"], "Z-reserved-lib-cckext">,
    Flags<[LinkerInput, NoArgumentUnused, Unsupported]>, Group<reserved_lib_Group>;

// Ignored options
// FIXME: multiclasess produce suffixes, not prefixes. This is fine for now
// since it is only used in ignored options.
multiclass BooleanFFlag<string name> {
  def _f : Flag<["-"], "f"#name>;
  def _fno : Flag<["-"], "fno-"#name>;
}

defm : BooleanFFlag<"keep-inline-functions">, Group<clang_ignored_gcc_optimization_f_Group>;

def fprofile_dir : Joined<["-"], "fprofile-dir=">, Group<f_Group>;

def fuse_ld_EQ : Joined<["-"], "fuse-ld=">, Group<f_Group>, Flags<[CoreOption]>;

defm align_functions : BooleanFFlag<"align-functions">, Group<clang_ignored_gcc_optimization_f_Group>;
def falign_functions_EQ : Joined<["-"], "falign-functions=">, Group<clang_ignored_gcc_optimization_f_Group>;
defm align_labels : BooleanFFlag<"align-labels">, Group<clang_ignored_gcc_optimization_f_Group>;
def falign_labels_EQ : Joined<["-"], "falign-labels=">, Group<clang_ignored_gcc_optimization_f_Group>;
defm align_loops : BooleanFFlag<"align-loops">, Group<clang_ignored_gcc_optimization_f_Group>;
def falign_loops_EQ : Joined<["-"], "falign-loops=">, Group<clang_ignored_gcc_optimization_f_Group>;
defm align_jumps : BooleanFFlag<"align-jumps">, Group<clang_ignored_gcc_optimization_f_Group>;
def falign_jumps_EQ : Joined<["-"], "falign-jumps=">, Group<clang_ignored_gcc_optimization_f_Group>;

// FIXME: This option should be supported and wired up to our diognostics, but
// ignore it for now to avoid breaking builds that use it.
def fdiagnostics_show_location_EQ : Joined<["-"], "fdiagnostics-show-location=">, Group<clang_ignored_f_Group>;

defm fcheck_new : BooleanFFlag<"check-new">, Group<clang_ignored_f_Group>;
defm caller_saves : BooleanFFlag<"caller-saves">, Group<clang_ignored_gcc_optimization_f_Group>;
defm reorder_blocks : BooleanFFlag<"reorder-blocks">, Group<clang_ignored_gcc_optimization_f_Group>;
defm eliminate_unused_debug_types : BooleanFFlag<"eliminate-unused-debug-types">, Group<clang_ignored_f_Group>;
defm branch_count_reg : BooleanFFlag<"branch-count-reg">, Group<clang_ignored_gcc_optimization_f_Group>;
defm default_inline : BooleanFFlag<"default-inline">, Group<clang_ignored_gcc_optimization_f_Group>;
defm delete_null_pointer_checks : BooleanFFlag<"delete-null-pointer-checks">,
    Group<clang_ignored_gcc_optimization_f_Group>;
defm fat_lto_objects : BooleanFFlag<"fat-lto-objects">, Group<clang_ignored_gcc_optimization_f_Group>;
defm float_store : BooleanFFlag<"float-store">, Group<clang_ignored_gcc_optimization_f_Group>;
defm friend_injection : BooleanFFlag<"friend-injection">, Group<clang_ignored_f_Group>;
defm function_attribute_list : BooleanFFlag<"function-attribute-list">, Group<clang_ignored_f_Group>;
defm gcse : BooleanFFlag<"gcse">, Group<clang_ignored_gcc_optimization_f_Group>;
defm gcse_after_reload: BooleanFFlag<"gcse-after-reload">, Group<clang_ignored_gcc_optimization_f_Group>;
defm gcse_las: BooleanFFlag<"gcse-las">, Group<clang_ignored_gcc_optimization_f_Group>;
defm gcse_sm: BooleanFFlag<"gcse-sm">, Group<clang_ignored_gcc_optimization_f_Group>;
defm gnu : BooleanFFlag<"gnu">, Group<clang_ignored_f_Group>;
defm ident : BooleanFFlag<"ident">, Group<clang_ignored_f_Group>;
defm implicit_templates : BooleanFFlag<"implicit-templates">, Group<clang_ignored_f_Group>;
defm implement_inlines : BooleanFFlag<"implement-inlines">, Group<clang_ignored_f_Group>;
defm merge_constants : BooleanFFlag<"merge-constants">, Group<clang_ignored_gcc_optimization_f_Group>;
defm modulo_sched : BooleanFFlag<"modulo-sched">, Group<clang_ignored_gcc_optimization_f_Group>;
defm modulo_sched_allow_regmoves : BooleanFFlag<"modulo-sched-allow-regmoves">,
    Group<clang_ignored_gcc_optimization_f_Group>;
defm inline_functions_called_once : BooleanFFlag<"inline-functions-called-once">,
    Group<clang_ignored_gcc_optimization_f_Group>;
def finline_limit_EQ : Joined<["-"], "finline-limit=">, Group<clang_ignored_gcc_optimization_f_Group>;
defm finline_limit : BooleanFFlag<"inline-limit">, Group<clang_ignored_gcc_optimization_f_Group>;
defm inline_small_functions : BooleanFFlag<"inline-small-functions">,
    Group<clang_ignored_gcc_optimization_f_Group>;
defm ipa_cp : BooleanFFlag<"ipa-cp">,
    Group<clang_ignored_gcc_optimization_f_Group>;
defm ivopts : BooleanFFlag<"ivopts">, Group<clang_ignored_gcc_optimization_f_Group>;
defm non_call_exceptions : BooleanFFlag<"non-call-exceptions">, Group<clang_ignored_f_Group>;
defm peel_loops : BooleanFFlag<"peel-loops">, Group<clang_ignored_gcc_optimization_f_Group>;
defm permissive : BooleanFFlag<"permissive">, Group<clang_ignored_f_Group>;
defm prefetch_loop_arrays : BooleanFFlag<"prefetch-loop-arrays">, Group<clang_ignored_gcc_optimization_f_Group>;
defm printf : BooleanFFlag<"printf">, Group<clang_ignored_f_Group>;
defm profile : BooleanFFlag<"profile">, Group<clang_ignored_f_Group>;
defm profile_correction : BooleanFFlag<"profile-correction">, Group<clang_ignored_gcc_optimization_f_Group>;
defm profile_generate_sampling : BooleanFFlag<"profile-generate-sampling">, Group<clang_ignored_f_Group>;
defm profile_reusedist : BooleanFFlag<"profile-reusedist">, Group<clang_ignored_f_Group>;
defm profile_values : BooleanFFlag<"profile-values">, Group<clang_ignored_gcc_optimization_f_Group>;
defm regs_graph : BooleanFFlag<"regs-graph">, Group<clang_ignored_f_Group>;
defm rename_registers : BooleanFFlag<"rename-registers">, Group<clang_ignored_gcc_optimization_f_Group>;
defm ripa : BooleanFFlag<"ripa">, Group<clang_ignored_f_Group>;
defm rounding_math : BooleanFFlag<"rounding-math">, Group<clang_ignored_gcc_optimization_f_Group>;
defm schedule_insns : BooleanFFlag<"schedule-insns">, Group<clang_ignored_gcc_optimization_f_Group>;
defm schedule_insns2 : BooleanFFlag<"schedule-insns2">, Group<clang_ignored_gcc_optimization_f_Group>;
defm see : BooleanFFlag<"see">, Group<clang_ignored_f_Group>;
defm signaling_nans : BooleanFFlag<"signaling-nans">, Group<clang_ignored_gcc_optimization_f_Group>;
defm single_precision_constant : BooleanFFlag<"single-precision-constant">,
    Group<clang_ignored_gcc_optimization_f_Group>;
defm spec_constr_count : BooleanFFlag<"spec-constr-count">, Group<clang_ignored_f_Group>;
defm stack_check : BooleanFFlag<"stack-check">, Group<clang_ignored_f_Group>;
defm strength_reduce :
    BooleanFFlag<"strength-reduce">, Group<clang_ignored_gcc_optimization_f_Group>;
defm tls_model : BooleanFFlag<"tls-model">, Group<clang_ignored_f_Group>;
defm tracer : BooleanFFlag<"tracer">, Group<clang_ignored_gcc_optimization_f_Group>;
defm tree_dce : BooleanFFlag<"tree-dce">, Group<clang_ignored_gcc_optimization_f_Group>;
defm tree_loop_im : BooleanFFlag<"tree_loop_im">,  Group<clang_ignored_gcc_optimization_f_Group>;
defm tree_loop_ivcanon : BooleanFFlag<"tree_loop_ivcanon">,  Group<clang_ignored_gcc_optimization_f_Group>;
defm tree_loop_linear : BooleanFFlag<"tree_loop_linear">,  Group<clang_ignored_gcc_optimization_f_Group>;
defm tree_salias : BooleanFFlag<"tree-salias">, Group<clang_ignored_f_Group>;
defm tree_ter : BooleanFFlag<"tree-ter">, Group<clang_ignored_gcc_optimization_f_Group>;
defm tree_vectorizer_verbose : BooleanFFlag<"tree-vectorizer-verbose">, Group<clang_ignored_f_Group>;
defm tree_vrp : BooleanFFlag<"tree-vrp">, Group<clang_ignored_gcc_optimization_f_Group>;
defm unroll_all_loops : BooleanFFlag<"unroll-all-loops">, Group<clang_ignored_gcc_optimization_f_Group>;
defm unsafe_loop_optimizations : BooleanFFlag<"unsafe-loop-optimizations">,
    Group<clang_ignored_gcc_optimization_f_Group>;
defm unswitch_loops : BooleanFFlag<"unswitch-loops">, Group<clang_ignored_gcc_optimization_f_Group>;
defm use_linker_plugin : BooleanFFlag<"use-linker-plugin">, Group<clang_ignored_gcc_optimization_f_Group>;
defm vect_cost_model : BooleanFFlag<"vect-cost-model">, Group<clang_ignored_gcc_optimization_f_Group>;
defm variable_expansion_in_unroller : BooleanFFlag<"variable-expansion-in-unroller">,
    Group<clang_ignored_gcc_optimization_f_Group>;
defm web : BooleanFFlag<"web">, Group<clang_ignored_gcc_optimization_f_Group>;
defm whole_program : BooleanFFlag<"whole-program">, Group<clang_ignored_gcc_optimization_f_Group>;
defm devirtualize : BooleanFFlag<"devirtualize">, Group<clang_ignored_gcc_optimization_f_Group>;
defm devirtualize_speculatively : BooleanFFlag<"devirtualize-speculatively">,
    Group<clang_ignored_gcc_optimization_f_Group>;

// gfortran options that we recognize in the driver and pass along when
// invoking GCC to compile Fortran code.
def gfortran_Group : OptionGroup<"gfortran Group">;

// Generic gfortran options.
def A_DASH : Joined<["-"], "A-">, Group<gfortran_Group>;
def J : JoinedOrSeparate<["-"], "J">, Flags<[RenderJoined]>, Group<gfortran_Group>;
def cpp : Flag<["-"], "cpp">, Group<gfortran_Group>;
def nocpp : Flag<["-"], "nocpp">, Group<gfortran_Group>;
def static_libgfortran : Flag<["-"], "static-libgfortran">, Group<gfortran_Group>;

// "f" options with values for gfortran.
def fblas_matmul_limit_EQ : Joined<["-"], "fblas-matmul-limit=">, Group<gfortran_Group>;
def fcheck_EQ : Joined<["-"], "fcheck=">, Group<gfortran_Group>;
def fcoarray_EQ : Joined<["-"], "fcoarray=">, Group<gfortran_Group>;
def fconvert_EQ : Joined<["-"], "fconvert=">, Group<gfortran_Group>;
def ffixed_line_length_VALUE : Joined<["-"], "ffixed-line-length-">, Group<gfortran_Group>;
def ffpe_trap_EQ : Joined<["-"], "ffpe-trap=">, Group<gfortran_Group>;
def ffree_line_length_VALUE : Joined<["-"], "ffree-line-length-">, Group<gfortran_Group>;
def finit_character_EQ : Joined<["-"], "finit-character=">, Group<gfortran_Group>;
def finit_integer_EQ : Joined<["-"], "finit-integer=">, Group<gfortran_Group>;
def finit_logical_EQ : Joined<["-"], "finit-logical=">, Group<gfortran_Group>;
def finit_real_EQ : Joined<["-"], "finit-real=">, Group<gfortran_Group>;
def fmax_array_constructor_EQ : Joined<["-"], "fmax-array-constructor=">, Group<gfortran_Group>;
def fmax_errors_EQ : Joined<["-"], "fmax-errors=">, Group<gfortran_Group>;
def fmax_stack_var_size_EQ : Joined<["-"], "fmax-stack-var-size=">, Group<gfortran_Group>;
def fmax_subrecord_length_EQ : Joined<["-"], "fmax-subrecord-length=">, Group<gfortran_Group>;
def frecord_marker_EQ : Joined<["-"], "frecord-marker=">, Group<gfortran_Group>;

// "f" flags for gfortran.
defm aggressive_function_elimination : BooleanFFlag<"aggressive-function-elimination">, Group<gfortran_Group>;
defm align_commons : BooleanFFlag<"align-commons">, Group<gfortran_Group>;
defm all_intrinsics : BooleanFFlag<"all-intrinsics">, Group<gfortran_Group>;
defm automatic : BooleanFFlag<"automatic">, Group<gfortran_Group>;
defm backslash : BooleanFFlag<"backslash">, Group<gfortran_Group>;
defm backtrace : BooleanFFlag<"backtrace">, Group<gfortran_Group>;
defm bounds_check : BooleanFFlag<"bounds-check">, Group<gfortran_Group>;
defm check_array_temporaries : BooleanFFlag<"check-array-temporaries">, Group<gfortran_Group>;
defm cray_pointer : BooleanFFlag<"cray-pointer">, Group<gfortran_Group>;
defm d_lines_as_code : BooleanFFlag<"d-lines-as-code">, Group<gfortran_Group>;
defm d_lines_as_comments : BooleanFFlag<"d-lines-as-comments">, Group<gfortran_Group>;
defm default_double_8 : BooleanFFlag<"default-double-8">, Group<gfortran_Group>;
defm default_integer_8 : BooleanFFlag<"default-integer-8">, Group<gfortran_Group>;
defm default_real_8 : BooleanFFlag<"default-real-8">, Group<gfortran_Group>;
defm dollar_ok : BooleanFFlag<"dollar-ok">, Group<gfortran_Group>;
defm dump_fortran_optimized : BooleanFFlag<"dump-fortran-optimized">, Group<gfortran_Group>;
defm dump_fortran_original : BooleanFFlag<"dump-fortran-original">, Group<gfortran_Group>;
defm dump_parse_tree : BooleanFFlag<"dump-parse-tree">, Group<gfortran_Group>;
defm external_blas : BooleanFFlag<"external-blas">, Group<gfortran_Group>;
defm f2c : BooleanFFlag<"f2c">, Group<gfortran_Group>;
defm fixed_form : BooleanFFlag<"fixed-form">, Group<gfortran_Group>;
defm free_form : BooleanFFlag<"free-form">, Group<gfortran_Group>;
defm frontend_optimize : BooleanFFlag<"frontend-optimize">, Group<gfortran_Group>;
defm implicit_none : BooleanFFlag<"implicit-none">, Group<gfortran_Group>;
defm init_local_zero : BooleanFFlag<"init-local-zero">, Group<gfortran_Group>;
defm integer_4_integer_8 : BooleanFFlag<"integer-4-integer-8">, Group<gfortran_Group>;
defm intrinsic_modules_path : BooleanFFlag<"intrinsic-modules-path">, Group<gfortran_Group>;
defm max_identifier_length : BooleanFFlag<"max-identifier-length">, Group<gfortran_Group>;
defm module_private : BooleanFFlag<"module-private">, Group<gfortran_Group>;
defm pack_derived : BooleanFFlag<"pack-derived">, Group<gfortran_Group>;
defm protect_parens : BooleanFFlag<"protect-parens">, Group<gfortran_Group>;
defm range_check : BooleanFFlag<"range-check">, Group<gfortran_Group>;
defm real_4_real_10 : BooleanFFlag<"real-4-real-10">, Group<gfortran_Group>;
defm real_4_real_16 : BooleanFFlag<"real-4-real-16">, Group<gfortran_Group>;
defm real_4_real_8 : BooleanFFlag<"real-4-real-8">, Group<gfortran_Group>;
defm real_8_real_10 : BooleanFFlag<"real-8-real-10">, Group<gfortran_Group>;
defm real_8_real_16 : BooleanFFlag<"real-8-real-16">, Group<gfortran_Group>;
defm real_8_real_4 : BooleanFFlag<"real-8-real-4">, Group<gfortran_Group>;
defm realloc_lhs : BooleanFFlag<"realloc-lhs">, Group<gfortran_Group>;
defm recursive : BooleanFFlag<"recursive">, Group<gfortran_Group>;
defm repack_arrays : BooleanFFlag<"repack-arrays">, Group<gfortran_Group>;
defm second_underscore : BooleanFFlag<"second-underscore">, Group<gfortran_Group>;
defm sign_zero : BooleanFFlag<"sign-zero">, Group<gfortran_Group>;
defm stack_arrays : BooleanFFlag<"stack-arrays">, Group<gfortran_Group>;
defm underscoring : BooleanFFlag<"underscoring">, Group<gfortran_Group>;
defm whole_file : BooleanFFlag<"whole-file">, Group<gfortran_Group>;


include "CC1Options.td"

include "CLCompatOptions.td"