[clang][cli] Specify KeyPath prefixes via TableGen classes

[jansvoboda11]

Summary

It turns out we need to handle LangOptions separately from the rest of the options. LangOptions used to be conditionally parsed only when !(DashX.getFormat() == InputKind::Precompiled || DashX.getLanguage() == Language::LLVM_IR) and we need to restore this order (for more info, see D94682).

We could do this similarly to how DiagnosticOptions are handled: via a counterpart to the IsDiag mix-in (e.g. IsLang). These mix-ins would prefix the option key path with the appropriate CompilerInvocation::XxxOpts member. However, this solution would be problematic, as we'd now have two kinds of options (Lang and Diag) with seemingly incomplete key paths in the same file. To understand what CompilerInvocation member an option affects, one would need to read the whole option definition and notice the IsDiag or IsLang class.

Instead, this patch introduces more robust way to handle different kinds of options separately: via the KeyPathAndMacroPrefix class. We have one specialization of that class per CompilerInvocation member (e.g. LangOpts, DiagnosticOpts, etc.). Now, instead of specifying a key path with "LangOpts->UndefPrefixes", we use LangOpts<"UndefPrefixes">. This keeps the readability intact (you don't have to look for the IsLang mix-in, the key path is complete on its own) and allows us to specify a custom macro prefix within LangOpts.

[Bigcheese]

LGTM.

clang/include/clang/Driver/Options.td

 // Retired with clang-10.0. Previously controlled X86 MPX ISA.
 def mmpx : Flag<["-"], "mmpx">, Group<clang_ignored_legacy_options_Group>;
 def mno_mpx : Flag<["-"], "mno-mpx">, Group<clang_ignored_legacy_options_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>, Flags<[Ignored]>;
 
-class IsDiag { string MacroPrefix = "DIAG_"; }
+class DiagnosticOpts<string base>
+  : KeyPathAndMacro<"DiagnosticOpts->", base, "DIAG_"> {}
+class LangOpts<string base>
+  : KeyPathAndMacro<"LangOpts->", base> {}
+class TargetOpts<string base>
+  : KeyPathAndMacro<"TargetOpts->", base> {}
+class FrontendOpts<string base>
+  : KeyPathAndMacro<"FrontendOpts.", base> {}
+class PreprocessorOutputOpts<string base>
+  : KeyPathAndMacro<"PreprocessorOutputOpts.", base> {}
+class DependencyOutputOpts<string base>
+  : KeyPathAndMacro<"DependencyOutputOpts.", base> {}
+class CodeGenOpts<string base>
+  : KeyPathAndMacro<"CodeGenOpts.", base> {}
+class HeaderSearchOpts<string base>
+  : KeyPathAndMacro<"HeaderSearchOpts->", base> {}
+class PreprocessorOpts<string base>
+  : KeyPathAndMacro<"PreprocessorOpts->", base> {}
+class FileSystemOpts<string base>
+  : KeyPathAndMacro<"FileSystemOpts.", base> {}
+class AnalyzerOpts<string base>
+  : KeyPathAndMacro<"AnalyzerOpts->", base> {}
+class MigratorOpts<string base>
+  : KeyPathAndMacro<"MigratorOpts.", base> {}
 
 // A boolean option which is opt-in in CC1. The positive option exists in CC1 and
 // Args.hasArg(OPT_ffoo) is used to check that the flag is enabled.
 // This is useful if the option is usually disabled.
 multiclass OptInFFlag<string name, string pos_prefix, string neg_prefix="",
-                      string help="", list<OptionFlag> flags=[], code keypath="",
+                      string help="", list<OptionFlag> flags=[],
+                      KeyPathAndMacro kpm = EmptyKPM,
                       list<Option> enablers = []> {
   def f#NAME : Flag<["-"], "f"#name>, Flags<!listconcat([CC1Option], flags)>,
                Group<f_Group>, HelpText<!strconcat(pos_prefix, help)>,
-               MarshallingInfoFlag<keypath, "false">,
+               MarshallingInfoFlag<kpm, "false">,
                ImpliedByAnyOf<enablers, "true">;
   def fno_#NAME : Flag<["-"], "fno-"#name>, Flags<flags>,
                Group<f_Group>, HelpText<!strconcat(neg_prefix, help)>;
 }
 
 // A boolean option which is opt-out in CC1. The negative option exists in CC1 and
 // Args.hasArg(OPT_fno_foo) is used to check that the flag is disabled.
 multiclass OptOutFFlag<string name, string pos_prefix, string neg_prefix,
-                       string help="", list<OptionFlag> flags=[], code keypath="",
+                       string help="", list<OptionFlag> flags=[],
+                       KeyPathAndMacro kpm = EmptyKPM,
                        list<Option> disablers = []> {
   def f#NAME : Flag<["-"], "f"#name>, Flags<flags>,
                Group<f_Group>, HelpText<!strconcat(pos_prefix, help)>;
   def fno_#NAME : Flag<["-"], "fno-"#name>, Flags<!listconcat([CC1Option], flags)>,
                Group<f_Group>, HelpText<!strconcat(neg_prefix, help)>,
-               MarshallingInfoFlag<keypath, "false">,
+               MarshallingInfoFlag<kpm, "false">,
                ImpliedByAnyOf<disablers, "true">;
 }
 
 //===----------------------------------------------------------------------===//
 // BoolOptionBase
 //===----------------------------------------------------------------------===//
 
 // Default value of the keypath associated with a marshalled bool option.
class FlagDefExpanded<FlagDef flag, string prefix, string name, string spelling>
   bit CanBeImplied = !not(!empty(flag.ImpliedBy));
 
   // C++ code that will be assigned to the keypath when the flag is present.
   code ValueAsCode = !cond(flag.Value : "true", true: "false");
 }
 
 // Creates record with a marshalled flag.
 class BoolOptionFlag<FlagDefExpanded flag, FlagDefExpanded other,
-                     FlagDefExpanded implied, code keypath, Default default>
+                     FlagDefExpanded implied, KeyPathAndMacro kpm, Default default>
   : Flag<["-"], flag.Spelling>, Flags<flag.OptionFlags>, HelpText<flag.Help>,
-    MarshallingInfoBooleanFlag<keypath, default.Value, flag.ValueAsCode,
+    MarshallingInfoBooleanFlag<kpm, default.Value, flag.ValueAsCode,
                                flag.RecordName, other.ValueAsCode,
                                other.RecordName>,
     ImpliedByAnyOf<implied.ImpliedBy, implied.ValueAsCode> {}
 
 // Generates TableGen records for two command line flags that control the same
 // keypath via the marshalling infrastructure.
 // Names of the records consist of the specified prefix, "no_" for the negative
 // flag, and NAME.
 // BoolOption is the API that should be used most of the time. Use this only
 // when you need more control (e.g. to represent a marshalled option whose
 // keypath defaults to an arbitrarily complex boolean expression).
-multiclass BoolOptionBase<string spelling_base, code keypath, Default default,
+multiclass BoolOptionBase<string spelling_base, KeyPathAndMacro kpm, Default default,
                           FlagDef flag1_base, FlagDef flag2_base,
                           FlagDefSuffix flags_suffix = FlagDefSuffix<[], "">,
                           string prefix = ""> {
   defvar flag1 = FlagDefExpanded<ApplySuffix<flag1_base, flags_suffix>.Result,
                                  prefix, NAME, spelling_base>;
 
   defvar flag2 = FlagDefExpanded<ApplySuffix<flag2_base, flags_suffix>.Result,
                                  prefix, NAME, spelling_base>;
 
   // TODO: Assert that the flags have different polarity.
   // TODO: Assert that the flags have different value.
   // TODO: Assert that only one of the flags can be implied.
 
   defvar implied = !cond(flag1.CanBeImplied: flag1, true: flag2);
 
-  def flag1.RecordName : BoolOptionFlag<flag1, flag2, implied, keypath, default>;
-  def flag2.RecordName : BoolOptionFlag<flag2, flag1, implied, keypath, default>;
+  def flag1.RecordName : BoolOptionFlag<flag1, flag2, implied, kpm, default>;
+  def flag2.RecordName : BoolOptionFlag<flag2, flag1, implied, kpm, default>;
 }
 
 //===----------------------------------------------------------------------===//
 // BoolOption
 //===----------------------------------------------------------------------===//
 
 class DefaultsToBool<bit value> { bit Value = value; }
 def DefaultsToTrue : DefaultsToBool<true> {}
class BothFlags<list<OptionFlag> option_flags = [], string help = ""> {
   list<OptionFlag> OptionFlags = option_flags;
   string Help = help;
 }
 
 /// Creates two command line flags that control the same boolean keypath.
 ///
 /// Example:
 ///   defm my_boolean_option : BoolOption<"my-boolean-option",
-///     "CodeGenOpts.MyBooleanOption", DefaultsToFalse,
+///     CodeGenOpts<"MyBooleanOption">, DefaultsToFalse,
 ///     ChangedBy<PosFlag, [CC1Option], "Enable">,
 ///     ResetBy<NegFlag, [], "Disable">,
 ///     BothFlags<[CoreOption], " my boolean option.">;
 ///
 ///   The Clang driver now knows two new command line flags: the "positive"
 ///   -my-boolean-option and the "negative" -no-my-boolean-option. The positive
 ///   flag is also available on the CC1 command line.
 ///
 ///   * When the command line contains neither of the flags, the keypath value
 ///     defaults to false.
 ///   * When the command line contains the positive -my-boolean-option, the
 ///     keypath value changes to true.
 ///   * When the command line contains the negative -no-my-bool-option, the
 ///     keypath value resets to false.
 ///
 ///   The help text for -my-boolean-option is "Enable my boolean option." and
 ///   "Disable my boolean option." for -no-my-boolean-option.
-multiclass BoolOption<string spelling_base, code keypath,
+multiclass BoolOption<string spelling_base, KeyPathAndMacro kpm,
                       DefaultsToBool defaults_to, ChangedBy changed_by,
                       ResetBy reset_by, BothFlags both = BothFlags<[], "">,
                       string name_prefix = ""> {
   defvar default = Default<!cond(defaults_to.Value : "true", true: "false")>;
 
   defvar changed_by_flag = FlagDef<changed_by.Polarity, !not(defaults_to.Value),
                                    changed_by.OptionFlags, changed_by.Help,
                                    changed_by.ChangedByOptions>;
 
   defvar reset_by_flag = FlagDef<reset_by.Polarity, defaults_to.Value,
                                  reset_by.OptionFlags, reset_by.Help>;
 
   defvar flag_suffix = FlagDefSuffix<both.OptionFlags, both.Help>;
 
-  defm NAME : BoolOptionBase<spelling_base, keypath, default, changed_by_flag,
+  defm NAME : BoolOptionBase<spelling_base, kpm, default, changed_by_flag,
                              reset_by_flag, flag_suffix, name_prefix>;
 }
 
 /// Creates a BoolOption with the changing available on the CC1 command line.
-multiclass BoolCC1Option<string flag_base, code keypath,
+multiclass BoolCC1Option<string flag_base, KeyPathAndMacro kpm,
                          DefaultsToBool defaults_to, ChangedBy changed_by,
                          ResetBy reset_by, BothFlags both = BothFlags<[], "">,
                          string name_prefix = ""> {
   defvar changed_by_cc1
     = ChangedBy<changed_by.Polarity,
                 !listconcat(changed_by.OptionFlags, [CC1Option]),
                 changed_by.Help, changed_by.ChangedByOptions>;
 
-  defm NAME : BoolOption<flag_base, keypath, defaults_to, changed_by_cc1,
+  defm NAME : BoolOption<flag_base, kpm, defaults_to, changed_by_cc1,
                          reset_by, both, name_prefix>;
 }
 
 /// Creates a BoolOption where both of the flags are prefixed with "f", are in
 /// the Group<f_Group>, and the changing flag is also available on the CC1
 /// command line.
-multiclass BoolFOption<string flag_base, code keypath,
+multiclass BoolFOption<string flag_base, KeyPathAndMacro kpm,
                        DefaultsToBool defaults_to, ChangedBy changed_by,
                        ResetBy reset_by, BothFlags both = BothFlags<[], "">> {
-  defm NAME : BoolCC1Option<flag_base, keypath, defaults_to, changed_by,
+  defm NAME : BoolCC1Option<flag_base, kpm, defaults_to, changed_by,
                             reset_by, both, "f">,
               Group<f_Group>;
 }
 
 // Creates a BoolOption where both of the flags are prefixed with "g", are in
 // the Group<g_Group>, and the changing flag is also available on the CC1
 // command line.
-multiclass BoolGOption<string flag_base, code keypath,
+multiclass BoolGOption<string flag_base, KeyPathAndMacro kpm,
                        DefaultsToBool defaults_to, ChangedBy changed_by,
                        ResetBy reset_by, BothFlags both = BothFlags<[], "">> {
-  defm NAME : BoolCC1Option<flag_base, keypath, defaults_to, changed_by,
+  defm NAME : BoolCC1Option<flag_base, kpm, defaults_to, changed_by,
                             reset_by, both, "g">,
               Group<g_Group>;
 }
 
 /////////
 // Options
 
 // The internal option ID must be a valid C++ identifier and results in a

 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]>,
-  MarshallingInfoString<"FrontendOpts.ARCMTMigrateReportOut">;
+  MarshallingInfoString<FrontendOpts<"ARCMTMigrateReportOut">>;
 def arcmt_migrate_emit_arc_errors : Flag<["-"], "arcmt-migrate-emit-errors">,
   HelpText<"Emit ARC errors even if the migrator can fix them">, Flags<[CC1Option]>,
-  MarshallingInfoFlag<"FrontendOpts.ARCMTMigrateEmitARCErrors">;
+  MarshallingInfoFlag<FrontendOpts<"ARCMTMigrateEmitARCErrors">>;
 def gen_reproducer: Flag<["-"], "gen-reproducer">, InternalDebugOpt,
   HelpText<"Auto-generates preprocessed source files and a reproduction script">;
 def gen_cdb_fragment_path: Separate<["-"], "gen-cdb-fragment-path">, InternalDebugOpt,
   HelpText<"Emit a compilation database fragment to the specified directory">;
 
 def _migrate : Flag<["--"], "migrate">, Flags<[NoXarchOption]>,
   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">,
-  MarshallingInfoBitfieldFlag<"FrontendOpts.ObjCMTAction", "FrontendOptions::ObjCMT_Literals">;
+  MarshallingInfoBitfieldFlag<FrontendOpts<"ObjCMTAction">, "FrontendOptions::ObjCMT_Literals">;
 def objcmt_migrate_subscripting : Flag<["-"], "objcmt-migrate-subscripting">, Flags<[CC1Option]>,
   HelpText<"Enable migration to modern ObjC subscripting">,
-  MarshallingInfoBitfieldFlag<"FrontendOpts.ObjCMTAction", "FrontendOptions::ObjCMT_Subscripting">;
+  MarshallingInfoBitfieldFlag<FrontendOpts<"ObjCMTAction">, "FrontendOptions::ObjCMT_Subscripting">;
 def objcmt_migrate_property : Flag<["-"], "objcmt-migrate-property">, Flags<[CC1Option]>,
   HelpText<"Enable migration to modern ObjC property">,
-  MarshallingInfoBitfieldFlag<"FrontendOpts.ObjCMTAction", "FrontendOptions::ObjCMT_Property">;
+  MarshallingInfoBitfieldFlag<FrontendOpts<"ObjCMTAction">, "FrontendOptions::ObjCMT_Property">;
 def objcmt_migrate_all : Flag<["-"], "objcmt-migrate-all">, Flags<[CC1Option]>,
   HelpText<"Enable migration to modern ObjC">,
-  MarshallingInfoBitfieldFlag<"FrontendOpts.ObjCMTAction", "FrontendOptions::ObjCMT_MigrateDecls">;
+  MarshallingInfoBitfieldFlag<FrontendOpts<"ObjCMTAction">, "FrontendOptions::ObjCMT_MigrateDecls">;
 def objcmt_migrate_readonly_property : Flag<["-"], "objcmt-migrate-readonly-property">, Flags<[CC1Option]>,
   HelpText<"Enable migration to modern ObjC readonly property">,
-  MarshallingInfoBitfieldFlag<"FrontendOpts.ObjCMTAction", "FrontendOptions::ObjCMT_ReadonlyProperty">;
+  MarshallingInfoBitfieldFlag<FrontendOpts<"ObjCMTAction">, "FrontendOptions::ObjCMT_ReadonlyProperty">;
 def objcmt_migrate_readwrite_property : Flag<["-"], "objcmt-migrate-readwrite-property">, Flags<[CC1Option]>,
   HelpText<"Enable migration to modern ObjC readwrite property">,
-  MarshallingInfoBitfieldFlag<"FrontendOpts.ObjCMTAction", "FrontendOptions::ObjCMT_ReadwriteProperty">;
+  MarshallingInfoBitfieldFlag<FrontendOpts<"ObjCMTAction">, "FrontendOptions::ObjCMT_ReadwriteProperty">;
 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">,
-  MarshallingInfoBitfieldFlag<"FrontendOpts.ObjCMTAction", "FrontendOptions::ObjCMT_PropertyDotSyntax">;
+  MarshallingInfoBitfieldFlag<FrontendOpts<"ObjCMTAction">, "FrontendOptions::ObjCMT_PropertyDotSyntax">;
 def objcmt_migrate_annotation : Flag<["-"], "objcmt-migrate-annotation">, Flags<[CC1Option]>,
   HelpText<"Enable migration to property and method annotations">,
-  MarshallingInfoBitfieldFlag<"FrontendOpts.ObjCMTAction", "FrontendOptions::ObjCMT_Annotation">;
+  MarshallingInfoBitfieldFlag<FrontendOpts<"ObjCMTAction">, "FrontendOptions::ObjCMT_Annotation">;
 def objcmt_migrate_instancetype : Flag<["-"], "objcmt-migrate-instancetype">, Flags<[CC1Option]>,
   HelpText<"Enable migration to infer instancetype for method result type">,
-  MarshallingInfoBitfieldFlag<"FrontendOpts.ObjCMTAction", "FrontendOptions::ObjCMT_Instancetype">;
+  MarshallingInfoBitfieldFlag<FrontendOpts<"ObjCMTAction">, "FrontendOptions::ObjCMT_Instancetype">;
 def objcmt_migrate_nsmacros : Flag<["-"], "objcmt-migrate-ns-macros">, Flags<[CC1Option]>,
   HelpText<"Enable migration to NS_ENUM/NS_OPTIONS macros">,
-  MarshallingInfoBitfieldFlag<"FrontendOpts.ObjCMTAction", "FrontendOptions::ObjCMT_NsMacros">;
+  MarshallingInfoBitfieldFlag<FrontendOpts<"ObjCMTAction">, "FrontendOptions::ObjCMT_NsMacros">;
 def objcmt_migrate_protocol_conformance : Flag<["-"], "objcmt-migrate-protocol-conformance">, Flags<[CC1Option]>,
   HelpText<"Enable migration to add protocol conformance on classes">,
-  MarshallingInfoBitfieldFlag<"FrontendOpts.ObjCMTAction", "FrontendOptions::ObjCMT_ProtocolConformance">;
+  MarshallingInfoBitfieldFlag<FrontendOpts<"ObjCMTAction">, "FrontendOptions::ObjCMT_ProtocolConformance">;
 def objcmt_atomic_property : Flag<["-"], "objcmt-atomic-property">, Flags<[CC1Option]>,
   HelpText<"Make migration to 'atomic' properties">,
-  MarshallingInfoBitfieldFlag<"FrontendOpts.ObjCMTAction", "FrontendOptions::ObjCMT_AtomicProperty">;
+  MarshallingInfoBitfieldFlag<FrontendOpts<"ObjCMTAction">, "FrontendOptions::ObjCMT_AtomicProperty">;
 def objcmt_returns_innerpointer_property : Flag<["-"], "objcmt-returns-innerpointer-property">, Flags<[CC1Option]>,
   HelpText<"Enable migration to annotate property with NS_RETURNS_INNER_POINTER">,
-  MarshallingInfoBitfieldFlag<"FrontendOpts.ObjCMTAction", "FrontendOptions::ObjCMT_ReturnsInnerPointerProperty">;
+  MarshallingInfoBitfieldFlag<FrontendOpts<"ObjCMTAction">, "FrontendOptions::ObjCMT_ReturnsInnerPointerProperty">;
 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">,
-  MarshallingInfoBitfieldFlag<"FrontendOpts.ObjCMTAction", "FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty">;
+  MarshallingInfoBitfieldFlag<FrontendOpts<"ObjCMTAction">, "FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty">;
 def objcmt_migrate_designated_init : Flag<["-"], "objcmt-migrate-designated-init">, Flags<[CC1Option]>,
   HelpText<"Enable migration to infer NS_DESIGNATED_INITIALIZER for initializer methods">,
-  MarshallingInfoBitfieldFlag<"FrontendOpts.ObjCMTAction", "FrontendOptions::ObjCMT_DesignatedInitializer">;
+  MarshallingInfoBitfieldFlag<FrontendOpts<"ObjCMTAction">, "FrontendOptions::ObjCMT_DesignatedInitializer">;
 
 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">,
-  MarshallingInfoString<"FrontendOpts.ObjCMTWhiteListPath">;
+  MarshallingInfoString<FrontendOpts<"ObjCMTWhiteListPath">>;
 // The misspelt "white-list" [sic] alias is due for removal.
 def : Joined<["-"], "objcmt-white-list-dir-path=">, Flags<[CC1Option]>,
     Alias<objcmt_whitelist_dir_path>;
 
 // 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<[NoXarchOption, CoreOption, FlangOption]>,
     HelpText<"Print (but do not run) the commands to run for this compilation">;
 def _DASH_DASH : Option<["--"], "", KIND_REMAINING_ARGS>,
     Flags<[NoXarchOption, CoreOption]>;
 def A : JoinedOrSeparate<["-"], "A">, Flags<[RenderJoined]>, Group<gfortran_Group>;
 def B : JoinedOrSeparate<["-"], "B">, MetaVarName<"<dir>">,
     HelpText<"Add <dir> to search path for binaries and object files used implicitly">;
 def CC : Flag<["-"], "CC">, Flags<[CC1Option]>, Group<Preprocessor_Group>,
     HelpText<"Include comments from within macros in preprocessed output">,
-    MarshallingInfoFlag<"PreprocessorOutputOpts.ShowMacroComments">;
+    MarshallingInfoFlag<PreprocessorOutputOpts<"ShowMacroComments">>;
 def C : Flag<["-"], "C">, Flags<[CC1Option]>, Group<Preprocessor_Group>,
     HelpText<"Include comments in preprocessed output">,
-    MarshallingInfoFlag<"PreprocessorOutputOpts.ShowComments">;
+    MarshallingInfoFlag<PreprocessorOutputOpts<"ShowComments">>;
 def D : JoinedOrSeparate<["-"], "D">, Group<Preprocessor_Group>,
     Flags<[CC1Option, FlangOption, FC1Option]>, MetaVarName<"<macro>=<value>">,
     HelpText<"Define <macro> to <value> (or 1 if <value> omitted)">;
 def E : Flag<["-"], "E">, Flags<[NoXarchOption,CC1Option, FlangOption, FC1Option]>, 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<[NoXarchOption]>, Group<m_Group>,
     MetaVarName<"<size>">, HelpText<"Put objects of at most <size> bytes "
     "into small data section (MIPS / Hexagon)">;
 def G_EQ : Joined<["-"], "G=">, Flags<[NoXarchOption]>, Group<m_Group>, Alias<G>;
 def H : Flag<["-"], "H">, Flags<[CC1Option]>, Group<Preprocessor_Group>,
     HelpText<"Show header includes and nesting depth">,
-    MarshallingInfoFlag<"DependencyOutputOpts.ShowHeaderIncludes">;
+    MarshallingInfoFlag<DependencyOutputOpts<"ShowHeaderIncludes">>;
 def I_ : Flag<["-"], "I-">, Group<I_Group>,
     HelpText<"Restrict all prior -I flags to double-quoted inclusion and "
              "remove current directory from include path">;
 def I : JoinedOrSeparate<["-"], "I">, Group<I_Group>,
     Flags<[CC1Option,CC1AsOption]>, MetaVarName<"<dir>">,
     HelpText<"Add directory to the end of the list of include search paths">,
     DocBrief<[{Add directory to include search path. For C++ inputs, if
 there are multiple -I options, these directories are searched
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">,
-    MarshallingInfoFlag<"DependencyOutputOpts.AddMissingHeaderDeps">;
+    MarshallingInfoFlag<DependencyOutputOpts<"AddMissingHeaderDeps">>;
 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)">,
-    MarshallingInfoFlag<"DependencyOutputOpts.UsePhonyTargets">;
+    MarshallingInfoFlag<DependencyOutputOpts<"UsePhonyTargets">>;
 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">,
-    MarshallingInfoStringVector<"DependencyOutputOpts.Targets">;
+    MarshallingInfoStringVector<DependencyOutputOpts<"Targets">>;
 def MV : Flag<["-"], "MV">, Group<M_Group>, Flags<[CC1Option]>,
     HelpText<"Use NMake/Jom format for the depfile">,
-    MarshallingInfoFlag<"DependencyOutputOpts.OutputFormat", "DependencyOutputFormat::Make">,
+    MarshallingInfoFlag<DependencyOutputOpts<"OutputFormat">, "DependencyOutputFormat::Make">,
     Normalizer<"makeFlagToValueNormalizer(DependencyOutputFormat::NMake)">;
 def Mach : Flag<["-"], "Mach">, Group<Link_Group>;
 def O0 : Flag<["-"], "O0">, Group<O_Group>, Flags<[CC1Option, HelpHidden]>;
 def O4 : Flag<["-"], "O4">, Group<O_Group>, Flags<[CC1Option, HelpHidden]>;
 def ObjCXX : Flag<["-"], "ObjC++">, Flags<[NoXarchOption]>,
   HelpText<"Treat source input files as Objective-C++ inputs">;
 def ObjC : Flag<["-"], "ObjC">, Flags<[NoXarchOption]>,
   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<["1"]>;
 def Ofast : Joined<["-"], "Ofast">, Group<O_Group>, Flags<[CC1Option]>;
 def P : Flag<["-"], "P">, Flags<[CC1Option]>, Group<Preprocessor_Group>,
   HelpText<"Disable linemarker output in -E mode">,
-  MarshallingInfoNegativeFlag<"PreprocessorOutputOpts.ShowLineMarkers">;
+  MarshallingInfoNegativeFlag<PreprocessorOutputOpts<"ShowLineMarkers">>;
 def Qy : Flag<["-"], "Qy">, Flags<[CC1Option]>,
   HelpText<"Emit metadata containing compiler name and version">;
 def Qn : Flag<["-"], "Qn">, Flags<[CC1Option]>,
   HelpText<"Do not emit metadata containing compiler name and version">;
 def : Flag<["-"], "fident">, Group<f_Group>, Alias<Qy>, Flags<[CC1Option]>;
 def : Flag<["-"], "fno-ident">, Group<f_Group>, Alias<Qn>, Flags<[CC1Option]>;
 def Qunused_arguments : Flag<["-"], "Qunused-arguments">, Flags<[NoXarchOption, CoreOption]>,
   HelpText<"Don't emit warning for unused driver arguments">;

 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>">, Group<Preprocessor_Group>;
 def Wundef_prefix_EQ : CommaJoined<["-"], "Wundef-prefix=">, Group<W_value_Group>,
   Flags<[CC1Option, CoreOption, HelpHidden]>, MetaVarName<"<arg>">,
   HelpText<"Enable warnings for undefined macros with a prefix in the comma separated list <arg>">,
-  MarshallingInfoStringVector<"UndefPrefixes">, IsDiag;
+  MarshallingInfoStringVector<DiagnosticOpts<"UndefPrefixes">>;
 def Wwrite_strings : Flag<["-"], "Wwrite-strings">, Group<W_Group>, Flags<[CC1Option, HelpHidden]>;
 def Wno_write_strings : Flag<["-"], "Wno-write-strings">, Group<W_Group>, Flags<[CC1Option, HelpHidden]>;
 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>">,
   Group<StaticAnalyzer_Group>;
 def Xarch__ : JoinedAndSeparate<["-"], "Xarch_">, Flags<[NoXarchOption]>;

 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.">,
-  MarshallingInfoFlag<"LangOpts->SinglePrecisionConstants">;
+  MarshallingInfoFlag<LangOpts<"SinglePrecisionConstants">>;
 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.">,
-  MarshallingInfoFlag<"LangOpts->CLFiniteMathOnly">;
+  MarshallingInfoFlag<LangOpts<"CLFiniteMathOnly">>;
 def cl_kernel_arg_info : Flag<["-"], "cl-kernel-arg-info">, Group<opencl_Group>, Flags<[CC1Option]>,
   HelpText<"OpenCL only. Generate kernel argument metadata.">,
-  MarshallingInfoFlag<"CodeGenOpts.EmitOpenCLArgMetadata">;
+  MarshallingInfoFlag<CodeGenOpts<"EmitOpenCLArgMetadata">>;
 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.">,
-  MarshallingInfoFlag<"LangOpts->CLUnsafeMath">;
+  MarshallingInfoFlag<LangOpts<"CLUnsafeMath">>;
 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__.">,
-  MarshallingInfoFlag<"LangOpts->FastRelaxedMath">;
+  MarshallingInfoFlag<LangOpts<"FastRelaxedMath">>;
 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.">,
-  MarshallingInfoFlag<"CodeGenOpts.LessPreciseFPMAD">,
+  MarshallingInfoFlag<CodeGenOpts<"LessPreciseFPMAD">>,
   ImpliedByAnyOf<[cl_unsafe_math_optimizations, cl_fast_relaxed_math]>;
 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.">,
-  MarshallingInfoFlag<"LangOpts->CLNoSignedZero">;
+  MarshallingInfoFlag<LangOpts<"CLNoSignedZero">>;
 def cl_std_EQ : Joined<["-"], "cl-std=">, Group<opencl_Group>, Flags<[CC1Option]>,
   HelpText<"OpenCL language standard to compile for.">, Values<"cl,CL,cl1.0,CL1.0,cl1.1,CL1.1,cl1.2,CL1.2,cl2.0,CL2.0,cl3.0,CL3.0,clc++,CLC++">;
 def cl_denorms_are_zero : Flag<["-"], "cl-denorms-are-zero">, Group<opencl_Group>,
   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.">,
-  MarshallingInfoFlag<"CodeGenOpts.CorrectlyRoundedDivSqrt">;
+  MarshallingInfoFlag<CodeGenOpts<"CorrectlyRoundedDivSqrt">>;
 def cl_uniform_work_group_size : Flag<["-"], "cl-uniform-work-group-size">, Group<opencl_Group>, Flags<[CC1Option]>,
   HelpText<"OpenCL only. Defines that the global work-size be a multiple of the work-group size specified to clEnqueueNDRangeKernel">,
-  MarshallingInfoFlag<"CodeGenOpts.UniformWGSize">;
+  MarshallingInfoFlag<CodeGenOpts<"UniformWGSize">>;
 def client__name : JoinedOrSeparate<["-"], "client_name">;
 def combine : Flag<["-", "--"], "combine">, Flags<[NoXarchOption, Unsupported]>;
 def compatibility__version : JoinedOrSeparate<["-"], "compatibility_version">;
 def config : Separate<["--"], "config">, Flags<[NoXarchOption]>,
   HelpText<"Specifies configuration file">;
 def config_system_dir_EQ : Joined<["--"], "config-system-dir=">, Flags<[NoXarchOption, HelpHidden]>,
   HelpText<"System directory for configuration files">;
 def config_user_dir_EQ : Joined<["--"], "config-user-dir=">, Flags<[NoXarchOption, HelpHidden]>,

 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">,
   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">;
 defm cuda_approx_transcendentals : OptInFFlag<"cuda-approx-transcendentals", "Use", "Don't use",
   " approximate transcendental functions">;
 defm gpu_rdc : BoolFOption<"gpu-rdc",
-  "LangOpts->GPURelocatableDeviceCode", DefaultsToFalse,
+  LangOpts<"GPURelocatableDeviceCode">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Generate relocatable device code, also known as separate compilation mode">,
   ResetBy<NegFlag>>;
 def : Flag<["-"], "fcuda-rdc">, Alias<fgpu_rdc>;
 def : Flag<["-"], "fno-cuda-rdc">, Alias<fno_gpu_rdc>;
 defm cuda_short_ptr : OptInFFlag<"cuda-short-ptr",
   "Use 32-bit pointers for accessing const/local/shared address spaces", "", "",
-  [], "TargetOpts->NVPTXUseShortPointers">;
+  [], TargetOpts<"NVPTXUseShortPointers">>;
 def rocm_path_EQ : Joined<["--"], "rocm-path=">, Group<i_Group>,
   HelpText<"ROCm installation path, used for finding and automatically linking required bitcode libraries.">;
 def rocm_device_lib_path_EQ : Joined<["--"], "rocm-device-lib-path=">, Group<Link_Group>,
   HelpText<"ROCm device library path. Alternative to rocm-path.">;
 def : Joined<["--"], "hip-device-lib-path=">, Alias<rocm_device_lib_path_EQ>;
 def hip_device_lib_EQ : Joined<["--"], "hip-device-lib=">, Group<Link_Group>,
   HelpText<"HIP device library">;
 def hip_version_EQ : Joined<["--"], "hip-version=">,
   HelpText<"HIP version in the format of major.minor.patch">;
 def fhip_dump_offload_linker_script : Flag<["-"], "fhip-dump-offload-linker-script">,
   Group<f_Group>, Flags<[NoArgumentUnused, HelpHidden]>;
 defm hip_new_launch_api : BoolFOption<"hip-new-launch-api",
-  "LangOpts->HIPUseNewLaunchAPI", DefaultsToFalse,
+  LangOpts<"HIPUseNewLaunchAPI">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Use">, ResetBy<NegFlag, [], "Don't use">,
   BothFlags<[], " new kernel launching API for HIP">>;
 defm gpu_allow_device_init : OptInFFlag<"gpu-allow-device-init",
   "Allow", "Don't allow", " device side init function in HIP">;
 defm gpu_defer_diag : BoolFOption<"gpu-defer-diag",
-  "LangOpts->GPUDeferDiag", DefaultsToFalse,
+  LangOpts<"GPUDeferDiag">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Defer">, ResetBy<NegFlag, [], "Don't defer">,
   BothFlags<[], " host/device related diagnostic messages for CUDA/HIP">>;
 defm gpu_exclude_wrong_side_overloads : BoolFOption<"gpu-exclude-wrong-side-overloads",
-  "LangOpts->GPUExcludeWrongSideOverloads", DefaultsToFalse,
+  LangOpts<"GPUExcludeWrongSideOverloads">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Always exclude wrong side overloads">,
   ResetBy<NegFlag, [], "Exclude wrong side overloads only if there are same side overloads">,
   BothFlags<[HelpHidden], " in overloading resolution for CUDA/HIP">>;
 def gpu_max_threads_per_block_EQ : Joined<["--"], "gpu-max-threads-per-block=">,
   Flags<[CC1Option]>,
   HelpText<"Default max threads per block for kernel launch bounds for HIP">;
 def gpu_instrument_lib_EQ : Joined<["--"], "gpu-instrument-lib=">,
   HelpText<"Instrument device library for HIP, which is a LLVM bitcode containing "
   "__cyg_profile_func_enter and __cyg_profile_func_exit">;
 def libomptarget_nvptx_path_EQ : Joined<["--"], "libomptarget-nvptx-path=">, Group<i_Group>,
   HelpText<"Path to libomptarget-nvptx libraries">;
 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">,
-  MarshallingInfoFlag<"PreprocessorOutputOpts.ShowIncludeDirectives">;
+  MarshallingInfoFlag<PreprocessorOutputOpts<"ShowIncludeDirectives">>;
 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">,
-  MarshallingInfoString<"DependencyOutputOpts.OutputFile">;
+  MarshallingInfoString<DependencyOutputOpts<"OutputFile">>;
 def dependency_dot : Separate<["-"], "dependency-dot">, Flags<[CC1Option]>,
   HelpText<"Filename to write DOT-formatted header dependencies to">,
-  MarshallingInfoString<"DependencyOutputOpts.DOTOutputFile">;
+  MarshallingInfoString<DependencyOutputOpts<"DOTOutputFile">>;
 def module_dependency_dir : Separate<["-"], "module-dependency-dir">,
   Flags<[CC1Option]>, HelpText<"Directory to dump module dependencies to">,
-  MarshallingInfoString<"DependencyOutputOpts.ModuleDependencyOutputDir">;
+  MarshallingInfoString<DependencyOutputOpts<"ModuleDependencyOutputDir">>;
 def dsym_dir : JoinedOrSeparate<["-"], "dsym-dir">,
   Flags<[NoXarchOption, RenderAsInput]>,
   HelpText<"Directory to output dSYM's (if any) to">, MetaVarName<"<dir>">;
 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 emit_merged_ifs : Flag<["-"], "emit-merged-ifs">,
   Flags<[CC1Option]>, Group<Action_Group>,
   HelpText<"Generate Interface Stub Files, emit merged text not binary.">;
 def interface_stub_version_EQ : JoinedOrSeparate<["-"], "interface-stub-version=">, Flags<[CC1Option]>;
 def exported__symbols__list : Separate<["-"], "exported_symbols_list">;
 def e : JoinedOrSeparate<["-"], "e">, Flags<[LinkerInput]>, Group<Link_Group>;
 def fmax_tokens_EQ : Joined<["-"], "fmax-tokens=">, Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"Max total number of preprocessed tokens for -Wmax-tokens.">,
-  MarshallingInfoStringInt<"LangOpts->MaxTokens">;
+  MarshallingInfoStringInt<LangOpts<"MaxTokens">>;
 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>;
 defm access_control : BoolFOption<"access-control",
-  "LangOpts->AccessControl", DefaultsToTrue,
+  LangOpts<"AccessControl">, DefaultsToTrue,
   ChangedBy<NegFlag, [], "Disable C++ access control">,
   ResetBy<PosFlag>>;
 def falign_functions : Flag<["-"], "falign-functions">, Group<f_Group>;
 def falign_functions_EQ : Joined<["-"], "falign-functions=">, Group<f_Group>;
 def fno_align_functions: Flag<["-"], "fno-align-functions">, Group<f_Group>;
 defm allow_editor_placeholders : BoolFOption<"allow-editor-placeholders",
-  "LangOpts->AllowEditorPlaceholders", DefaultsToFalse,
+  LangOpts<"AllowEditorPlaceholders">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Treat editor placeholders as valid source code">,
   ResetBy<NegFlag>>;
 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">,
-  MarshallingInfoFlag<"LangOpts->AppleKext">;
+  MarshallingInfoFlag<LangOpts<"AppleKext">>;
 defm apple_pragma_pack : BoolFOption<"apple-pragma-pack",
-  "LangOpts->ApplePragmaPack", DefaultsToFalse,
+  LangOpts<"ApplePragmaPack">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Enable Apple gcc-compatible #pragma pack handling">,
   ResetBy<NegFlag>>;
 def fxl_pragma_pack : Flag<["-"], "fxl-pragma-pack">, Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"Enable IBM XL #pragma pack handling">;
 def shared_libsan : Flag<["-"], "shared-libsan">,
   HelpText<"Dynamically link the sanitizer runtime">;
 def static_libsan : Flag<["-"], "static-libsan">,
   HelpText<"Statically link the sanitizer runtime">;

 def fdouble_square_bracket_attributes : Flag<[ "-" ], "fdouble-square-bracket-attributes">,
   Group<f_Group>, Flags<[NoXarchOption, CC1Option]>,
   HelpText<"Enable '[[]]' attributes in all C and C++ language modes">;
 def fno_double_square_bracket_attributes : Flag<[ "-" ], "fno-double-square-bracket-attributes">,
   Group<f_Group>, Flags<[NoXarchOption, CC1Option]>,
   HelpText<"Disable '[[]]' attributes in all C and C++ language modes">;
 
 defm autolink : BoolFOption<"autolink",
-  "CodeGenOpts.Autolink", DefaultsToTrue,
+  CodeGenOpts<"Autolink">, DefaultsToTrue,
   ChangedBy<NegFlag, [CC1Option], "Disable generation of linker directives for automatic library linking">,
   ResetBy<PosFlag>>;
 
 // C++ Coroutines TS
 defm coroutines_ts : OptInFFlag<"coroutines-ts", "Enable support for the C++ Coroutines TS">;
 
 def fembed_bitcode_EQ : Joined<["-"], "fembed-bitcode=">,
     Group<f_Group>, Flags<[NoXarchOption, CC1Option, CC1AsOption]>, MetaVarName<"<option>">,
     HelpText<"Embed LLVM bitcode (option: off, all, bitcode, marker)">,
     Values<"off,all,bitcode,marker">, NormalizedValuesScope<"CodeGenOptions">,
     NormalizedValues<["Embed_Off", "Embed_All", "Embed_Bitcode", "Embed_Marker"]>,
-    MarshallingInfoString<"CodeGenOpts.EmbedBitcode", "Embed_Off">, AutoNormalizeEnum;
+    MarshallingInfoString<CodeGenOpts<"EmbedBitcode">, "Embed_Off">, AutoNormalizeEnum;
 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">;
 defm gnu_inline_asm : BoolFOption<"gnu-inline-asm",
-  "LangOpts->GNUAsm", DefaultsToTrue,
+  LangOpts<"GNUAsm">, DefaultsToTrue,
   ChangedBy<NegFlag, [], "Disable GNU style inline asm">, ResetBy<PosFlag>>;
 
 def fprofile_sample_use : Flag<["-"], "fprofile-sample-use">, Group<f_Group>,
     Flags<[CoreOption]>;
 def fno_profile_sample_use : Flag<["-"], "fno-profile-sample-use">, Group<f_Group>,
     Flags<[CoreOption]>;
 def fprofile_sample_use_EQ : Joined<["-"], "fprofile-sample-use=">,
     Group<f_Group>, Flags<[NoXarchOption, CC1Option]>,
     HelpText<"Enable sample-based profile guided optimizations">,
-    MarshallingInfoString<"CodeGenOpts.SampleProfileFile">;
+    MarshallingInfoString<CodeGenOpts<"SampleProfileFile">>;
 def fprofile_sample_accurate : Flag<["-"], "fprofile-sample-accurate">,
     Group<f_Group>, Flags<[NoXarchOption, CC1Option]>,
     HelpText<"Specifies that the sample profile is accurate">,
     DocBrief<[{Specifies that the sample profile is accurate. If the sample
                profile is accurate, callsites without profile samples are marked
                as cold. Otherwise, treat callsites without profile samples as if
                we have no profile}]>,
-   MarshallingInfoFlag<"CodeGenOpts.ProfileSampleAccurate">;
+   MarshallingInfoFlag<CodeGenOpts<"ProfileSampleAccurate">>;
 def fno_profile_sample_accurate : Flag<["-"], "fno-profile-sample-accurate">,
   Group<f_Group>, Flags<[NoXarchOption]>;
 def fauto_profile : Flag<["-"], "fauto-profile">, Group<f_Group>,
     Alias<fprofile_sample_use>;
 def fno_auto_profile : Flag<["-"], "fno-auto-profile">, Group<f_Group>,
     Alias<fno_profile_sample_use>;
 def fauto_profile_EQ : Joined<["-"], "fauto-profile=">,
     Alias<fprofile_sample_use_EQ>;
 def fauto_profile_accurate : Flag<["-"], "fauto-profile-accurate">,
     Group<f_Group>, Alias<fprofile_sample_accurate>;
 def fno_auto_profile_accurate : Flag<["-"], "fno-auto-profile-accurate">,
     Group<f_Group>, Alias<fno_profile_sample_accurate>;
 def fdebug_compilation_dir : Separate<["-"], "fdebug-compilation-dir">,
     Group<f_Group>, Flags<[CC1Option, CC1AsOption, CoreOption]>,
     HelpText<"The compilation directory to embed in the debug info.">,
-    MarshallingInfoString<"CodeGenOpts.DebugCompilationDir">;
+    MarshallingInfoString<CodeGenOpts<"DebugCompilationDir">>;
 def fdebug_compilation_dir_EQ : Joined<["-"], "fdebug-compilation-dir=">,
     Group<f_Group>, Flags<[CC1Option, CC1AsOption, CoreOption]>,
     Alias<fdebug_compilation_dir>;
 defm debug_info_for_profiling : BoolFOption<"debug-info-for-profiling",
-  "CodeGenOpts.DebugInfoForProfiling", DefaultsToFalse,
+  CodeGenOpts<"DebugInfoForProfiling">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Emit extra debug info to make sample profile more accurate">,
   ResetBy<NegFlag>>;
 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 (overridden 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 fprofile_remapping_file_EQ : Joined<["-"], "fprofile-remapping-file=">,
     Group<f_Group>, Flags<[CC1Option, CoreOption]>, MetaVarName<"<file>">,
     HelpText<"Use the remappings described in <file> to match the profile data against names in the program">,
-    MarshallingInfoString<"CodeGenOpts.ProfileRemappingFile">;
+    MarshallingInfoString<CodeGenOpts<"ProfileRemappingFile">>;
 def fprofile_remapping_file : Separate<["-"], "fprofile-remapping-file">,
     Group<f_Group>, Flags<[CoreOption]>, Alias<fprofile_remapping_file_EQ>;
 defm coverage_mapping : BoolFOption<"coverage-mapping",
-  "CodeGenOpts.CoverageMapping", DefaultsToFalse,
+  CodeGenOpts<"CoverageMapping">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Generate coverage mapping to enable code coverage analysis">,
   ResetBy<NegFlag, [], "Disable code coverage analysis">, BothFlags<[CoreOption]>>;
 def fprofile_generate : Flag<["-"], "fprofile-generate">,
     Group<f_Group>, Flags<[CoreOption]>,
     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<[CoreOption]>, MetaVarName<"<directory>">,
     HelpText<"Generate instrumented code to collect execution counts into <directory>/default.profraw (overridden by LLVM_PROFILE_FILE env var)">;
def fno_profile_generate : Flag<["-"], "fno-profile-generate">,
     Group<f_Group>, Flags<[CoreOption]>,
     HelpText<"Disable generation of profile instrumentation.">;
 def fno_profile_instr_use : Flag<["-"], "fno-profile-instr-use">,
     Group<f_Group>, Flags<[CoreOption]>,
     HelpText<"Disable using instrumentation data for profile-guided optimization">;
 def fno_profile_use : Flag<["-"], "fno-profile-use">,
     Alias<fno_profile_instr_use>;
 defm profile_arcs : BoolFOption<"profile-arcs",
-  "CodeGenOpts.EmitGcovArcs", DefaultsToFalse,
+  CodeGenOpts<"EmitGcovArcs">, DefaultsToFalse,
   ChangedBy<PosFlag, [LinkOption]>, ResetBy<NegFlag>>;
 defm test_coverage : BoolFOption<"test-coverage",
-  "CodeGenOpts.EmitGcovNotes", DefaultsToFalse,
+  CodeGenOpts<"EmitGcovNotes">, DefaultsToFalse,
   ChangedBy<PosFlag>, ResetBy<NegFlag>>;
 def fprofile_filter_files_EQ : Joined<["-"], "fprofile-filter-files=">,
     Group<f_Group>, Flags<[CC1Option, CoreOption]>,
     HelpText<"Instrument only functions from files where names match any regex separated by a semi-colon">,
-    MarshallingInfoString<"CodeGenOpts.ProfileFilterFiles">,
+    MarshallingInfoString<CodeGenOpts<"ProfileFilterFiles">>,
     ShouldParseIf<!strconcat(fprofile_arcs.KeyPath, "||", ftest_coverage.KeyPath)>;
 def fprofile_exclude_files_EQ : Joined<["-"], "fprofile-exclude-files=">,
     Group<f_Group>, Flags<[CC1Option, CoreOption]>,
     HelpText<"Instrument only functions from files where names don't match all the regexes separated by a semi-colon">,
-    MarshallingInfoString<"CodeGenOpts.ProfileExcludeFiles">,
+    MarshallingInfoString<CodeGenOpts<"ProfileExcludeFiles">>,
     ShouldParseIf<!strconcat(fprofile_arcs.KeyPath, "||", ftest_coverage.KeyPath)>;
 def fprofile_update_EQ : Joined<["-"], "fprofile-update=">,
     Group<f_Group>, Flags<[CC1Option, CoreOption]>, Values<"atomic,prefer-atomic,single">,
     MetaVarName<"<method>">, HelpText<"Set update method of profile counters (atomic,prefer-atomic,single)">,
-    MarshallingInfoFlag<"CodeGenOpts.AtomicProfileUpdate">;
+    MarshallingInfoFlag<CodeGenOpts<"AtomicProfileUpdate">>;
 defm pseudo_probe_for_profiling : BoolFOption<"pseudo-probe-for-profiling",
-  "CodeGenOpts.PseudoProbeForProfiling", DefaultsToFalse,
+  CodeGenOpts<"PseudoProbeForProfiling">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Emit">, ResetBy<NegFlag, [], "Do not emit">,
   BothFlags<[NoXarchOption, CC1Option], " pseudo probes for sample profiler">>;
 def forder_file_instrumentation : Flag<["-"], "forder-file-instrumentation">,
     Group<f_Group>, Flags<[CC1Option, CoreOption]>,
     HelpText<"Generate instrumented code to collect order file into default.profraw file (overridden by '=' form of option or LLVM_PROFILE_FILE env var)">;
 
 defm addrsig : BoolFOption<"addrsig",
-  "CodeGenOpts.Addrsig", DefaultsToFalse,
+  CodeGenOpts<"Addrsig">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Emit">, ResetBy<NegFlag, [], "Don't emit">,
   BothFlags<[CoreOption], " an address-significance table">>;
 defm blocks : OptInFFlag<"blocks", "Enable the 'blocks' language feature", "", "", [CoreOption]>;
 def fbootclasspath_EQ : Joined<["-"], "fbootclasspath=">, Group<f_Group>;
 defm borland_extensions : BoolFOption<"borland-extensions",
-  "LangOpts->Borland", DefaultsToFalse,
+  LangOpts<"Borland">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Accept non-standard constructs supported by the Borland compiler">,
   ResetBy<NegFlag>>;
 def fbuiltin : Flag<["-"], "fbuiltin">, Group<f_Group>, Flags<[CoreOption]>;
 def fbuiltin_module_map : Flag <["-"], "fbuiltin-module-map">, Group<f_Group>,
   Flags<[NoXarchOption]>, HelpText<"Load the clang builtins module map file.">;
 defm caret_diagnostics : BoolFOption<"caret-diagnostics",
-  "ShowCarets", DefaultsToTrue,
-  ChangedBy<NegFlag>, ResetBy<PosFlag>>, IsDiag;
+  DiagnosticOpts<"ShowCarets">, DefaultsToTrue,
+  ChangedBy<NegFlag>, ResetBy<PosFlag>>;
 def fclang_abi_compat_EQ : Joined<["-"], "fclang-abi-compat=">, Group<f_clang_Group>,
   Flags<[CC1Option]>, MetaVarName<"<version>">, Values<"<major>.<minor>,latest">,
   HelpText<"Attempt to match the ABI of Clang <version>">;
 def fclasspath_EQ : Joined<["-"], "fclasspath=">, Group<f_Group>;
 defm color_diagnostics : OptInFFlag<"color-diagnostics", "Enable", "Disable", " colors in diagnostics",
   [CoreOption, FlangOption]>;
 def fdiagnostics_color : Flag<["-"], "fdiagnostics-color">, Group<f_Group>,
   Flags<[CoreOption, NoXarchOption]>;
 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">,
-  MarshallingInfoFlag<"UseANSIEscapeCodes">, IsDiag;
+  MarshallingInfoFlag<DiagnosticOpts<"UseANSIEscapeCodes">>;
 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>">, MarshallingInfoStringVector<"LangOpts->CommentOpts.BlockCommandNames">;
+  MetaVarName<"<arg>">, MarshallingInfoStringVector<LangOpts<"CommentOpts.BlockCommandNames">>;
 def fparse_all_comments : Flag<["-"], "fparse-all-comments">, Group<f_clang_Group>, Flags<[CC1Option]>,
-  MarshallingInfoFlag<"LangOpts->CommentOpts.ParseAllComments">;
+  MarshallingInfoFlag<LangOpts<"CommentOpts.ParseAllComments">>;
 def frecord_command_line : Flag<["-"], "frecord-command-line">,
   Group<f_clang_Group>;
 def fno_record_command_line : Flag<["-"], "fno-record-command-line">,
   Group<f_clang_Group>;
 def : Flag<["-"], "frecord-gcc-switches">, Alias<frecord_command_line>;
 def : Flag<["-"], "fno-record-gcc-switches">, Alias<fno_record_command_line>;
 def fcommon : Flag<["-"], "fcommon">, Group<f_Group>,
   Flags<[CoreOption, CC1Option]>, HelpText<"Place uninitialized global variables in a common block">,
-  MarshallingInfoNegativeFlag<"CodeGenOpts.NoCommon">;
+  MarshallingInfoNegativeFlag<CodeGenOpts<"NoCommon">>;
 def fcompile_resource_EQ : Joined<["-"], "fcompile-resource=">, Group<f_Group>;
 defm complete_member_pointers : BoolOption<"complete-member-pointers",
-  "LangOpts->CompleteMemberPointers", DefaultsToFalse,
+  LangOpts<"CompleteMemberPointers">, DefaultsToFalse,
   ChangedBy<PosFlag, [CC1Option], "Require">, ResetBy<NegFlag, [], "Do not require">,
   BothFlags<[CoreOption], " member pointer base types to be complete if they"
             " would be significant under the Microsoft ABI">, "f">,
   Group<f_clang_Group>;
 def fcf_runtime_abi_EQ : Joined<["-"], "fcf-runtime-abi=">, Group<f_Group>,
     Flags<[CC1Option]>, Values<"unspecified,standalone,objc,swift,swift-5.0,swift-4.2,swift-4.1">,
     NormalizedValuesScope<"LangOptions::CoreFoundationABI">,
     NormalizedValues<["ObjectiveC", "ObjectiveC", "ObjectiveC", "Swift5_0", "Swift5_0", "Swift4_2", "Swift4_1"]>,
-    MarshallingInfoString<"LangOpts->CFRuntime", "ObjectiveC">, AutoNormalizeEnum;
+    MarshallingInfoString<LangOpts<"CFRuntime">, "ObjectiveC">, AutoNormalizeEnum;
 defm constant_cfstrings : BoolFOption<"constant-cfstrings",
-  "LangOpts->NoConstantCFStrings", DefaultsToFalse,
+  LangOpts<"NoConstantCFStrings">, DefaultsToFalse,
   ChangedBy<NegFlag, [], "Disable creation of CodeFoundation-type constant strings">,
   ResetBy<PosFlag>>;
 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 fexperimental_new_constant_interpreter : Flag<["-"], "fexperimental-new-constant-interpreter">, Group<f_Group>,
   HelpText<"Enable the experimental new constant interpreter">, Flags<[CC1Option]>,
-  MarshallingInfoFlag<"LangOpts->EnableNewConstInterp">;
+  MarshallingInfoFlag<LangOpts<"EnableNewConstInterp">>;
 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, CoreOption]>,
   HelpText<"Disable auto-generation of preprocessed source files and a script for reproduction during a clang crash">;
 def fcrash_diagnostics_dir : Joined<["-"], "fcrash-diagnostics-dir=">, Group<f_clang_Group>, Flags<[NoArgumentUnused, CoreOption]>;
 def fcreate_profile : Flag<["-"], "fcreate-profile">, Group<f_Group>;
 defm cxx_exceptions: BoolFOption<"cxx-exceptions",
-  "LangOpts->CXXExceptions", DefaultsToFalse,
+  LangOpts<"CXXExceptions">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Enable C++ exceptions">, ResetBy<NegFlag>>;
 def fcxx_modules : Flag <["-"], "fcxx-modules">, Group<f_Group>,
   Flags<[NoXarchOption]>;
 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 fno_diagnostics_fixit_info : Flag<["-"], "fno-diagnostics-fixit-info">, Group<f_Group>,
   Flags<[CC1Option]>, HelpText<"Do not include fixit information in diagnostics">,
-  MarshallingInfoNegativeFlag<"ShowFixits">, IsDiag;
+  MarshallingInfoNegativeFlag<DiagnosticOpts<"ShowFixits">>;
 def fdiagnostics_parseable_fixits : Flag<["-"], "fdiagnostics-parseable-fixits">, Group<f_clang_Group>,
     Flags<[CoreOption, CC1Option]>, HelpText<"Print fix-its in machine parseable form">,
-    MarshallingInfoFlag<"ShowParseableFixits">, IsDiag;
+    MarshallingInfoFlag<DiagnosticOpts<"ShowParseableFixits">>;
 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">,
-    MarshallingInfoFlag<"ShowSourceRanges">, IsDiag;
+    MarshallingInfoFlag<DiagnosticOpts<"ShowSourceRanges">>;
 defm diagnostics_show_hotness : BoolFOption<"diagnostics-show-hotness",
-  "CodeGenOpts.DiagnosticsWithHotness", DefaultsToFalse,
+  CodeGenOpts<"DiagnosticsWithHotness">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Enable profile hotness information in diagnostic line">,
   ResetBy<NegFlag>>;
 def fdiagnostics_hotness_threshold_EQ : Joined<["-"], "fdiagnostics-hotness-threshold=">,
     Group<f_Group>, Flags<[CC1Option]>, MetaVarName<"<value>">,
     HelpText<"Prevent optimization remarks from being output if they do not have at least this profile count. "
     "Use 'auto' to apply the threshold from profile summary">;
 defm diagnostics_show_option : BoolFOption<"diagnostics-show-option",
-    "ShowOptionNames", DefaultsToTrue,
-    ChangedBy<NegFlag>, ResetBy<PosFlag, [], "Print option name with mappable diagnostics">>, IsDiag;
+    DiagnosticOpts<"ShowOptionNames">, DefaultsToTrue,
+    ChangedBy<NegFlag>, ResetBy<PosFlag, [], "Print option name with mappable diagnostics">>;
 defm diagnostics_show_note_include_stack : BoolFOption<"diagnostics-show-note-include-stack",
-    "ShowNoteIncludeStack", DefaultsToFalse,
+    DiagnosticOpts<"ShowNoteIncludeStack">, DefaultsToFalse,
     ChangedBy<PosFlag, [], "Display include stacks for diagnostic notes">,
-    ResetBy<NegFlag>, BothFlags<[CC1Option]>>, IsDiag;
+    ResetBy<NegFlag>, BothFlags<[CC1Option]>>;
 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">,
-    MarshallingInfoFlag<"ShowTemplateTree">, IsDiag;
+    MarshallingInfoFlag<DiagnosticOpts<"ShowTemplateTree">>;
 def fdeclspec : Flag<["-"], "fdeclspec">, Group<f_clang_Group>,
   HelpText<"Allow __declspec as a keyword">, Flags<[CC1Option]>;
 def fdiscard_value_names : Flag<["-"], "fdiscard-value-names">, Group<f_clang_Group>,
   HelpText<"Discard value names in LLVM IR">, Flags<[NoXarchOption]>;
 def fno_discard_value_names : Flag<["-"], "fno-discard-value-names">, Group<f_clang_Group>,
   HelpText<"Do not discard value names in LLVM IR">, Flags<[NoXarchOption]>;
 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>;
 defm dwarf_directory_asm : BoolFOption<"dwarf-directory-asm",
-  "CodeGenOpts.NoDwarfDirectoryAsm", DefaultsToFalse,
+  CodeGenOpts<"NoDwarfDirectoryAsm">, DefaultsToFalse,
   ChangedBy<NegFlag>, ResetBy<PosFlag>>;
 defm elide_constructors : BoolFOption<"elide-constructors",
-  "LangOpts->ElideConstructors", DefaultsToTrue,
+  LangOpts<"ElideConstructors">, DefaultsToTrue,
   ChangedBy<NegFlag, [], "Disable C++ copy constructor elision">,
   ResetBy<PosFlag>>;
 def fno_elide_type : Flag<["-"], "fno-elide-type">, Group<f_Group>,
     Flags<[CC1Option]>,
     HelpText<"Do not elide types when printing diagnostics">,
-    MarshallingInfoNegativeFlag<"ElideType">, IsDiag;
+    MarshallingInfoNegativeFlag<DiagnosticOpts<"ElideType">>;
 def feliminate_unused_debug_symbols : Flag<["-"], "feliminate-unused-debug-symbols">, Group<f_Group>;
 defm eliminate_unused_debug_types : OptOutFFlag<"eliminate-unused-debug-types",
   "Do not emit ", "Emit ", " debug info for defined but unused types">;
 def femit_all_decls : Flag<["-"], "femit-all-decls">, Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"Emit all declarations, even if unused">,
-  MarshallingInfoFlag<"LangOpts->EmitAllDecls">;
+  MarshallingInfoFlag<LangOpts<"EmitAllDecls">>;
 defm emulated_tls : BoolFOption<"emulated-tls",
-  "CodeGenOpts.EmulatedTLS", DefaultsToFalse,
+  CodeGenOpts<"EmulatedTLS">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Use emutls functions to access thread_local variables">,
   ResetBy<NegFlag>, BothFlags<[CC1Option]>>;
 def fencoding_EQ : Joined<["-"], "fencoding=">, Group<f_Group>;
 def ferror_limit_EQ : Joined<["-"], "ferror-limit=">, Group<f_Group>, Flags<[CoreOption]>;
 defm exceptions : BoolFOption<"exceptions",
-  "LangOpts->Exceptions", DefaultsToFalse,
+  LangOpts<"Exceptions">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Enable">, ResetBy<NegFlag, [], "Disable">,
   BothFlags<[], " support for exception handling">>;
 def fdwarf_exceptions : Flag<["-"], "fdwarf-exceptions">, Group<f_Group>,
   HelpText<"Use DWARF style exceptions">;
 def fsjlj_exceptions : Flag<["-"], "fsjlj-exceptions">, Group<f_Group>,
   HelpText<"Use SjLj style exceptions">;
 def fseh_exceptions : Flag<["-"], "fseh-exceptions">, Group<f_Group>,
   HelpText<"Use SEH style exceptions">;
 def fwasm_exceptions : Flag<["-"], "fwasm-exceptions">, Group<f_Group>,
   HelpText<"Use WebAssembly style exceptions">;
 def exception_model : Separate<["-"], "exception-model">,
   Flags<[CC1Option, NoDriverOption]>, HelpText<"The exception model: dwarf|sjlj|seh|wasm">,
   Values<"dwarf,sjlj,seh,wasm">,
   NormalizedValuesScope<"llvm::ExceptionHandling">,
   NormalizedValues<["DwarfCFI", "SjLj", "WinEH", "Wasm"]>,
-  MarshallingInfoString<"LangOpts->ExceptionHandling", "None">,
+  MarshallingInfoString<LangOpts<"ExceptionHandling">, "None">,
   AutoNormalizeEnum;
 def exception_model_EQ : Joined<["-"], "exception-model=">,
   Flags<[CC1Option, NoDriverOption]>, Alias<exception_model>;
 def fignore_exceptions : Flag<["-"], "fignore-exceptions">, Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"Enable support for ignoring exception handling constructs">,
-  MarshallingInfoFlag<"LangOpts->IgnoreExceptions">;
+  MarshallingInfoFlag<LangOpts<"IgnoreExceptions">>;
 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 ffp_model_EQ : Joined<["-"], "ffp-model=">, Group<f_Group>, Flags<[NoXarchOption]>,
   HelpText<"Controls the semantics of floating-point calculations.">;
 def ffp_exception_behavior_EQ : Joined<["-"], "ffp-exception-behavior=">, Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"Specifies the exception behavior of floating-point operations.">;
 defm fast_math : OptInFFlag<"fast-math", "Allow aggressive, lossy floating-point optimizations", "", "", [],
-  "LangOpts->FastMath", [cl_fast_relaxed_math]>;
+  LangOpts<"FastMath">, [cl_fast_relaxed_math]>;
 def menable_unsafe_fp_math : Flag<["-"], "menable-unsafe-fp-math">, Flags<[CC1Option]>,
   HelpText<"Allow unsafe floating-point math optimizations which may decrease precision">,
-  MarshallingInfoFlag<"LangOpts->UnsafeFPMath">,
+  MarshallingInfoFlag<LangOpts<"UnsafeFPMath">>,
   ImpliedByAnyOf<[cl_unsafe_math_optimizations, ffast_math]>;
 defm math_errno : OptInFFlag<"math-errno", "Require math functions to indicate errors by setting errno">;
 def fbracket_depth_EQ : Joined<["-"], "fbracket-depth=">, Group<f_Group>, Flags<[CoreOption]>;
 def fsignaling_math : Flag<["-"], "fsignaling-math">, Group<f_Group>;
 def fno_signaling_math : Flag<["-"], "fno-signaling-math">, Group<f_Group>;
 defm jump_tables : BoolFOption<"jump-tables",
-  "CodeGenOpts.NoUseJumpTables", DefaultsToFalse,
+  CodeGenOpts<"NoUseJumpTables">, DefaultsToFalse,
   ChangedBy<NegFlag, [], "Do not use">, ResetBy<PosFlag, [], "Use">,
   BothFlags<[], " jump tables for lowering switches">>;
-defm force_enable_int128 : OptInFFlag<"force-enable-int128", "Enable", "Disable", " support for int128_t type", [], "TargetOpts->ForceEnableInt128">;
+defm force_enable_int128 : OptInFFlag<"force-enable-int128", "Enable", "Disable", " support for int128_t type", [], TargetOpts<"ForceEnableInt128">>;
 defm keep_static_consts : BoolFOption<"keep-static-consts",
-  "CodeGenOpts.KeepStaticConsts", DefaultsToFalse,
+  CodeGenOpts<"KeepStaticConsts">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Keep">, ResetBy<NegFlag, [], "Don't keep">,
   BothFlags<[NoXarchOption], " static const variables if unused">>;
 defm fixed_point : OptInFFlag<"fixed-point", "Enable", "Disable", " fixed point types">;
 defm cxx_static_destructors : BoolFOption<"c++-static-destructors",
-  "LangOpts->RegisterStaticDestructors", DefaultsToTrue,
+  LangOpts<"RegisterStaticDestructors">, DefaultsToTrue,
   ChangedBy<NegFlag, [], "Disable C++ static destructor registration">,
   ResetBy<PosFlag>>;
 def fsymbol_partition_EQ : Joined<["-"], "fsymbol-partition=">, Group<f_Group>,
-  Flags<[CC1Option]>, MarshallingInfoString<"CodeGenOpts.SymbolPartition">;
+  Flags<[CC1Option]>, MarshallingInfoString<CodeGenOpts<"SymbolPartition">>;
 
 defm memory_profile : OptInFFlag<"memory-profile", "Enable", "Disable", " heap memory profiling">;
 def fmemory_profile_EQ : Joined<["-"], "fmemory-profile=">,
     Group<f_Group>, Flags<[CC1Option]>, MetaVarName<"<directory>">,
     HelpText<"Enable heap memory profiling and dump results into <directory>">;
 
 // Begin sanitizer flags. These should all be core options exposed in all driver
 // modes.
 let Flags = [CC1Option, CoreOption] in {
 
 def fsanitize_EQ : CommaJoined<["-"], "fsanitize=">, Group<f_clang_Group>,
                    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, NoXarchOption]>;
 def fsanitize_blacklist : Joined<["-"], "fsanitize-blacklist=">,
                           Group<f_clang_Group>,
                           HelpText<"Path to blacklist file for sanitizers">,
-                          MarshallingInfoStringVector<"LangOpts->SanitizerBlacklistFiles">;
+                          MarshallingInfoStringVector<LangOpts<"SanitizerBlacklistFiles">>;
 def fsanitize_system_blacklist : Joined<["-"], "fsanitize-system-blacklist=">,
   HelpText<"Path to system blacklist file for sanitizers">,
   Flags<[CC1Option]>;
 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>,
       HelpText<"Specify the type of coverage instrumentation for Sanitizers">;
 def fno_sanitize_coverage
     : CommaJoined<["-"], "fno-sanitize-coverage=">,
       Group<f_clang_Group>, Flags<[CoreOption, NoXarchOption]>,
       HelpText<"Disable specified features of coverage instrumentation for "
                "Sanitizers">, Values<"func,bb,edge,indirect-calls,trace-bb,trace-cmp,trace-div,trace-gep,8bit-counters,trace-pc,trace-pc-guard,no-prune,inline-8bit-counters,inline-bool-flag">;
 def fsanitize_coverage_allowlist : Joined<["-"], "fsanitize-coverage-allowlist=">,
     Group<f_clang_Group>, Flags<[CoreOption, NoXarchOption]>,
     HelpText<"Restrict sanitizer coverage instrumentation exclusively to modules and functions that match the provided special case list, except the blocked ones">,
-    MarshallingInfoStringVector<"CodeGenOpts.SanitizeCoverageAllowlistFiles">;
+    MarshallingInfoStringVector<CodeGenOpts<"SanitizeCoverageAllowlistFiles">>;
 def : Joined<["-"], "fsanitize-coverage-whitelist=">,
   Group<f_clang_Group>, Flags<[CoreOption, HelpHidden]>, Alias<fsanitize_coverage_allowlist>,
   HelpText<"Deprecated, use -fsanitize-coverage-allowlist= instead">;
 def fsanitize_coverage_blocklist : Joined<["-"], "fsanitize-coverage-blocklist=">,
     Group<f_clang_Group>, Flags<[CoreOption, NoXarchOption]>,
     HelpText<"Disable sanitizer coverage instrumentation for modules and functions that match the provided special case list, even the allowed ones">,
-    MarshallingInfoStringVector<"CodeGenOpts.SanitizeCoverageBlocklistFiles">;
+    MarshallingInfoStringVector<CodeGenOpts<"SanitizeCoverageBlocklistFiles">>;
 def : Joined<["-"], "fsanitize-coverage-blacklist=">,
   Group<f_clang_Group>, Flags<[CoreOption, HelpHidden]>, Alias<fsanitize_coverage_blocklist>,
   HelpText<"Deprecated, use -fsanitize-coverage-blocklist= instead">;
 def fsanitize_memory_track_origins_EQ : Joined<["-"], "fsanitize-memory-track-origins=">,
                                         Group<f_clang_Group>,
                                         HelpText<"Enable origins tracking in MemorySanitizer">,
-                                        MarshallingInfoStringInt<"CodeGenOpts.SanitizeMemoryTrackOrigins">;
+                                        MarshallingInfoStringInt<CodeGenOpts<"SanitizeMemoryTrackOrigins">>;
 def fsanitize_memory_track_origins : Flag<["-"], "fsanitize-memory-track-origins">,
                                      Group<f_clang_Group>,
                                      HelpText<"Enable origins tracking in MemorySanitizer">;
 def fno_sanitize_memory_track_origins : Flag<["-"], "fno-sanitize-memory-track-origins">,
                                         Group<f_clang_Group>,
                                         Flags<[CoreOption, NoXarchOption]>,
                                         HelpText<"Disable origins tracking in MemorySanitizer">;
 defm sanitize_memory_use_after_dtor : BoolOption<"sanitize-memory-use-after-dtor",
-  "CodeGenOpts.SanitizeMemoryUseAfterDtor", DefaultsToFalse,
+  CodeGenOpts<"SanitizeMemoryUseAfterDtor">, DefaultsToFalse,
   ChangedBy<PosFlag, [CC1Option], "Enable">, ResetBy<NegFlag, [], "Disable">,
   BothFlags<[], " use-after-destroy detection in MemorySanitizer">, "f">,
   Group<f_clang_Group>;
 def fsanitize_address_field_padding : Joined<["-"], "fsanitize-address-field-padding=">,
                                         Group<f_clang_Group>,
                                         HelpText<"Level of field padding for AddressSanitizer">,
-                                        MarshallingInfoStringInt<"LangOpts->SanitizeAddressFieldPadding">;
+                                        MarshallingInfoStringInt<LangOpts<"SanitizeAddressFieldPadding">>;
 defm sanitize_address_use_after_scope : BoolOption<"sanitize-address-use-after-scope",
-  "CodeGenOpts.SanitizeAddressUseAfterScope", DefaultsToFalse,
+  CodeGenOpts<"SanitizeAddressUseAfterScope">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Enable">, ResetBy<NegFlag, [CoreOption, NoXarchOption], "Disable">,
   BothFlags<[], " use-after-scope detection in AddressSanitizer">, "f">,
   Group<f_clang_Group>;
 defm sanitize_address_poison_custom_array_cookie : BoolOption<"sanitize-address-poison-custom-array-cookie",
-  "CodeGenOpts.SanitizeAddressPoisonCustomArrayCookie", DefaultsToFalse,
+  CodeGenOpts<"SanitizeAddressPoisonCustomArrayCookie">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Enable">, ResetBy<NegFlag, [], "Disable">,
   BothFlags<[], " poisoning array cookies when using custom operator new[] in AddressSanitizer">, "f">,
   Group<f_clang_Group>;
 def fsanitize_address_globals_dead_stripping : Flag<["-"], "fsanitize-address-globals-dead-stripping">,
   Group<f_clang_Group>, HelpText<"Enable linker dead stripping of globals in AddressSanitizer">,
-  MarshallingInfoFlag<"CodeGenOpts.SanitizeAddressGlobalsDeadStripping", "false">;
+  MarshallingInfoFlag<CodeGenOpts<"SanitizeAddressGlobalsDeadStripping">, "false">;
 defm sanitize_address_use_odr_indicator : BoolOption<"sanitize-address-use-odr-indicator",
-  "CodeGenOpts.SanitizeAddressUseOdrIndicator", DefaultsToFalse,
+  CodeGenOpts<"SanitizeAddressUseOdrIndicator">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Enable ODR indicator globals to avoid false ODR violation"
             " reports in partially sanitized programs at the cost of an increase in binary size">,
   ResetBy<NegFlag, [], "Disable ODR indicator globals">, BothFlags<[]>, "f">,
   Group<f_clang_Group>;
 // Note: This flag was introduced when it was necessary to distinguish between
 //       ABI for correct codegen.  This is no longer needed, but the flag is
 //       not removed since targeting either ABI will behave the same.
 //       This way we cause no disturbance to existing scripts & code, and if we
def fno_sanitize_trap : Flag<["-"], "fno-sanitize-trap">, Group<f_clang_Group>,
                         HelpText<"Disable trapping for all sanitizers">;
 def fsanitize_undefined_trap_on_error
     : Flag<["-"], "fsanitize-undefined-trap-on-error">, Group<f_clang_Group>,
       Alias<fsanitize_trap_EQ>, AliasArgs<["undefined"]>;
 def fno_sanitize_undefined_trap_on_error
     : Flag<["-"], "fno-sanitize-undefined-trap-on-error">, Group<f_clang_Group>,
       Alias<fno_sanitize_trap_EQ>, AliasArgs<["undefined"]>;
 defm sanitize_minimal_runtime : BoolOption<"sanitize-minimal-runtime",
-  "CodeGenOpts.SanitizeMinimalRuntime", DefaultsToFalse,
+  CodeGenOpts<"SanitizeMinimalRuntime">, DefaultsToFalse,
   ChangedBy<PosFlag>, ResetBy<NegFlag>, BothFlags<[]>, "f">,
   Group<f_clang_Group>;
 def fsanitize_link_runtime : Flag<["-"], "fsanitize-link-runtime">,
                            Group<f_clang_Group>;
 def fno_sanitize_link_runtime : Flag<["-"], "fno-sanitize-link-runtime">,
                               Group<f_clang_Group>;
 def fsanitize_link_cxx_runtime : Flag<["-"], "fsanitize-link-c++-runtime">,
                                  Group<f_clang_Group>;
 def fno_sanitize_link_cxx_runtime : Flag<["-"], "fno-sanitize-link-c++-runtime">,
                                     Group<f_clang_Group>;
 defm sanitize_cfi_cross_dso : BoolOption<"sanitize-cfi-cross-dso",
-  "CodeGenOpts.SanitizeCfiCrossDso", DefaultsToFalse,
+  CodeGenOpts<"SanitizeCfiCrossDso">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Enable">, ResetBy<NegFlag, [CoreOption, NoXarchOption], "Disable">,
   BothFlags<[], " control flow integrity (CFI) checks for cross-DSO calls.">, "f">,
   Group<f_clang_Group>;
 def fsanitize_cfi_icall_generalize_pointers : Flag<["-"], "fsanitize-cfi-icall-generalize-pointers">,
                                               Group<f_clang_Group>,
                                               HelpText<"Generalize pointers in CFI indirect call type signature checks">,
-                                              MarshallingInfoFlag<"CodeGenOpts.SanitizeCfiICallGeneralizePointers">;
+                                              MarshallingInfoFlag<CodeGenOpts<"SanitizeCfiICallGeneralizePointers">>;
 defm sanitize_cfi_canonical_jump_tables : BoolOption<"sanitize-cfi-canonical-jump-tables",
-  "CodeGenOpts.SanitizeCfiCanonicalJumpTables", DefaultsToFalse,
+  CodeGenOpts<"SanitizeCfiCanonicalJumpTables">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Make">, ResetBy<NegFlag, [CoreOption, NoXarchOption], "Do not make">,
   BothFlags<[], " the jump table addresses canonical in the symbol table">, "f">,
   Group<f_clang_Group>;
 defm sanitize_stats : BoolOption<"sanitize-stats",
-  "CodeGenOpts.SanitizeStats", DefaultsToFalse,
+  CodeGenOpts<"SanitizeStats">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Enable">, ResetBy<NegFlag, [CoreOption, NoXarchOption], "Disable">,
   BothFlags<[], " sanitizer statistics gathering.">, "f">,
   Group<f_clang_Group>;
 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>,

 def fno_sanitize_thread_atomics : Flag<["-"], "fno-sanitize-thread-atomics">,
                                   Group<f_clang_Group>,
                                   Flags<[CoreOption, NoXarchOption]>,
                                   HelpText<"Disable atomic operations instrumentation in ThreadSanitizer">;
 def fsanitize_undefined_strip_path_components_EQ : Joined<["-"], "fsanitize-undefined-strip-path-components=">,
   Group<f_clang_Group>, MetaVarName<"<number>">,
   HelpText<"Strip (or keep only, if negative) a given number of path components "
            "when emitting check metadata.">,
-  MarshallingInfoStringInt<"CodeGenOpts.EmitCheckPathComponentsToStrip", "0", "int">;
+  MarshallingInfoStringInt<CodeGenOpts<"EmitCheckPathComponentsToStrip">, "0", "int">;
 
 } // end -f[no-]sanitize* flags
 
 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>;
 defm reciprocal_math : OptInFFlag<"reciprocal-math", "Allow division operations to be reassociated", "", "", [],
-  "LangOpts->AllowRecip", [menable_unsafe_fp_math]>;
+  LangOpts<"AllowRecip">, [menable_unsafe_fp_math]>;
 def fapprox_func : Flag<["-"], "fapprox-func">, Group<f_Group>, Flags<[CC1Option, NoDriverOption]>,
-  MarshallingInfoFlag<"LangOpts->ApproxFunc">, ImpliedByAnyOf<[menable_unsafe_fp_math]>;
+  MarshallingInfoFlag<LangOpts<"ApproxFunc">>, ImpliedByAnyOf<[menable_unsafe_fp_math]>;
 defm finite_math_only : OptInFFlag<"finite-math-only", "", "", "", [],
-  "LangOpts->FiniteMathOnly", [cl_finite_math_only, ffast_math]>;
+  LangOpts<"FiniteMathOnly">, [cl_finite_math_only, ffast_math]>;
 defm signed_zeros : BoolFOption<"signed-zeros",
-  "LangOpts->NoSignedZero", DefaultsToFalse,
+  LangOpts<"NoSignedZero">, DefaultsToFalse,
   ChangedBy<NegFlag, [], "Allow optimizations that ignore the sign of floating point zeros",
             [cl_no_signed_zeros, menable_unsafe_fp_math]>,
   ResetBy<PosFlag>>;
 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 frounding_math : Flag<["-"], "frounding-math">, Group<f_Group>, Flags<[CC1Option]>,
-  MarshallingInfoFlag<"LangOpts->FPRoundingMode", "llvm::RoundingMode::NearestTiesToEven">,
+  MarshallingInfoFlag<LangOpts<"FPRoundingMode">, "llvm::RoundingMode::NearestTiesToEven">,
   Normalizer<"makeFlagToValueNormalizer(llvm::RoundingMode::Dynamic)">;
 def fno_rounding_math : Flag<["-"], "fno-rounding-math">, Group<f_Group>, Flags<[CC1Option]>;
 def ftrapping_math : Flag<["-"], "ftrapping-math">, Group<f_Group>;
 def fno_trapping_math : Flag<["-"], "fno-trapping-math">, Group<f_Group>;
 def ffp_contract : Joined<["-"], "ffp-contract=">, Group<f_Group>,
   Flags<[CC1Option]>, HelpText<"Form fused FP ops (e.g. FMAs):"
   " fast (fuses across statements disregarding pragmas)"
   " | on (only fuses in the same statement unless dictated by pragmas)"
   " | off (never fuses)"
   " | fast-honor-pragmas (fuses across statements unless diectated by pragmas)."
   " Default is 'fast' for CUDA, 'fast-honor-pragmas' for HIP, and 'on' otherwise.">,
   Values<"fast,on,off,fast-honor-pragmas">;
 
 defm strict_float_cast_overflow : BoolFOption<"strict-float-cast-overflow",
-  "CodeGenOpts.StrictFloatCastOverflow", DefaultsToTrue,
+  CodeGenOpts<"StrictFloatCastOverflow">, DefaultsToTrue,
   ChangedBy<NegFlag, [], "Relax language rules and try to match the behavior"
             " of the target's native float-to-int conversion instructions">,
   ResetBy<PosFlag, [], "Assume that overflowing float-to-int casts are undefined (default)">>;
 
 def ffor_scope : Flag<["-"], "ffor-scope">, Group<f_Group>;
 def fno_for_scope : Flag<["-"], "fno-for-scope">, Group<f_Group>;
 
 defm rewrite_imports : BoolFOption<"rewrite-imports",
-  "PreprocessorOutputOpts.RewriteImports", DefaultsToFalse,
+  PreprocessorOutputOpts<"RewriteImports">, DefaultsToFalse,
   ChangedBy<PosFlag>, ResetBy<NegFlag>>;
 defm rewrite_includes : BoolFOption<"rewrite-includes",
-  "PreprocessorOutputOpts.RewriteIncludes", DefaultsToFalse,
+  PreprocessorOutputOpts<"RewriteIncludes">, DefaultsToFalse,
   ChangedBy<PosFlag>, ResetBy<NegFlag>>;
 
 defm delete_null_pointer_checks : BoolFOption<"delete-null-pointer-checks",
-  "CodeGenOpts.NullPointerIsValid", DefaultsToFalse,
+  CodeGenOpts<"NullPointerIsValid">, DefaultsToFalse,
   ChangedBy<NegFlag, [], "Do not treat usage of null pointers as undefined behavior">,
   ResetBy<PosFlag, [], "Treat usage of null pointers as undefined behavior (default)">,
   BothFlags<[CoreOption]>>;
 
 def frewrite_map_file : Separate<["-"], "frewrite-map-file">,
                         Group<f_Group>,
                         Flags<[ NoXarchOption, CC1Option ]>,
-                        MarshallingInfoStringVector<"CodeGenOpts.RewriteMapFiles">;
+                        MarshallingInfoStringVector<CodeGenOpts<"RewriteMapFiles">>;
 def frewrite_map_file_EQ : Joined<["-"], "frewrite-map-file=">,
                            Group<f_Group>,
                            Flags<[NoXarchOption]>;
 
 defm use_line_directives : BoolFOption<"use-line-directives",
-  "PreprocessorOutputOpts.UseLineDirectives", DefaultsToFalse,
+  PreprocessorOutputOpts<"UseLineDirectives">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Use #line in preprocessed output">, ResetBy<NegFlag>>;
 
 def ffreestanding : Flag<["-"], "ffreestanding">, Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"Assert that the compilation takes place in a freestanding environment">,
-  MarshallingInfoFlag<"LangOpts->Freestanding">;
+  MarshallingInfoFlag<LangOpts<"Freestanding">>;
 def fgnuc_version_EQ : Joined<["-"], "fgnuc-version=">, Group<f_Group>,
   HelpText<"Sets various macros to claim compatibility with the given GCC version (default is 4.2.1)">,
   Flags<[CC1Option, CoreOption]>;
 def fgnu_keywords : Flag<["-"], "fgnu-keywords">, Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"Allow GNU-extension keywords regardless of language standard">;
 defm gnu89_inline : OptInFFlag<"gnu89-inline", "Use the gnu89 inline semantics">;
 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]>,
-  MarshallingInfoFlag<"LangOpts->HeinousExtensions">;
+  MarshallingInfoFlag<LangOpts<"HeinousExtensions">>;
 def filelist : Separate<["-"], "filelist">, Flags<[LinkerInput]>,
                Group<Link_Group>;
 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 which are (explicitly or implicitly) marked inline">;
 def finline : Flag<["-"], "finline">, Group<clang_ignored_f_Group>;
 def fglobal_isel : Flag<["-"], "fglobal-isel">, Group<f_clang_Group>,
   HelpText<"Enables the global instruction selector">;
 def fexperimental_isel : Flag<["-"], "fexperimental-isel">, Group<f_clang_Group>,
   Alias<fglobal_isel>;
 defm legacy_pass_manager : BoolOptionBase<"legacy-pass-manager",
-  "CodeGenOpts.LegacyPassManager", Default<"!static_cast<unsigned>(LLVM_ENABLE_NEW_PASS_MANAGER)">,
+  CodeGenOpts<"LegacyPassManager">, Default<"!static_cast<unsigned>(LLVM_ENABLE_NEW_PASS_MANAGER)">,
   FlagDef<PosFlag, true, [], "Use the legacy pass manager in LLVM">,
   FlagDef<NegFlag, false, [], "Use the new pass manager in LLVM">,
   FlagDefSuffix<[CC1Option], "">, "f">, Group<f_clang_Group>;
 def fexperimental_new_pass_manager : Flag<["-"], "fexperimental-new-pass-manager">,
   Group<f_clang_Group>, Flags<[CC1Option]>, Alias<fno_legacy_pass_manager>;
 def fno_experimental_new_pass_manager : Flag<["-"], "fno-experimental-new-pass-manager">,
   Group<f_clang_Group>, Flags<[CC1Option]>, Alias<flegacy_pass_manager>;
 def fexperimental_strict_floating_point : Flag<["-"], "fexperimental-strict-floating-point">,
   Group<f_clang_Group>, Flags<[CC1Option]>,
   HelpText<"Enables experimental strict floating point in LLVM.">,
-  MarshallingInfoFlag<"LangOpts->ExpStrictFP">;
+  MarshallingInfoFlag<LangOpts<"ExpStrictFP">>;
 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">,
-  MarshallingInfoFlag<"CodeGenOpts.InstrumentFunctions">;
+  MarshallingInfoFlag<CodeGenOpts<"InstrumentFunctions">>;
 def finstrument_functions_after_inlining : Flag<["-"], "finstrument-functions-after-inlining">, Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"Like -finstrument-functions, but insert the calls after inlining">,
-  MarshallingInfoFlag<"CodeGenOpts.InstrumentFunctionsAfterInlining">;
+  MarshallingInfoFlag<CodeGenOpts<"InstrumentFunctionsAfterInlining">>;
 def finstrument_function_entry_bare : Flag<["-"], "finstrument-function-entry-bare">, Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"Instrument function entry only, after inlining, without arguments to the instrumentation call">,
-  MarshallingInfoFlag<"CodeGenOpts.InstrumentFunctionEntryBare">;
+  MarshallingInfoFlag<CodeGenOpts<"InstrumentFunctionEntryBare">>;
 def fcf_protection_EQ : Joined<["-"], "fcf-protection=">, Flags<[CoreOption, CC1Option]>, Group<f_Group>,
   HelpText<"Instrument control-flow architecture protection. Options: return, branch, full, none.">, Values<"return,branch,full,none">;
 def fcf_protection : Flag<["-"], "fcf-protection">, Group<f_Group>, Flags<[CoreOption, CC1Option]>,
   Alias<fcf_protection_EQ>, AliasArgs<["full"]>,
   HelpText<"Enable cf-protection in 'full' mode">;
 
-defm xray_instrument : OptInFFlag<"xray-instrument", "Generate XRay instrumentation sleds on function entry and exit", "", "", [], "LangOpts->XRayInstrument">;
+defm xray_instrument : OptInFFlag<"xray-instrument", "Generate XRay instrumentation sleds on function entry and exit", "", "", [], LangOpts<"XRayInstrument">>;
 
 def fxray_instruction_threshold_EQ :
   JoinedOrSeparate<["-"], "fxray-instruction-threshold=">,
   Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"Sets the minimum function size to instrument with XRay">,
-  MarshallingInfoStringInt<"CodeGenOpts.XRayInstructionThreshold", "200">;
+  MarshallingInfoStringInt<CodeGenOpts<"XRayInstructionThreshold">, "200">;
 def fxray_instruction_threshold_ :
   JoinedOrSeparate<["-"], "fxray-instruction-threshold">,
   Group<f_Group>, Flags<[CC1Option]>;
 
 def fxray_always_instrument :
   JoinedOrSeparate<["-"], "fxray-always-instrument=">,
   Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"DEPRECATED: Filename defining the whitelist for imbuing the 'always instrument' XRay attribute.">,
-  MarshallingInfoStringVector<"LangOpts->XRayAlwaysInstrumentFiles">;
+  MarshallingInfoStringVector<LangOpts<"XRayAlwaysInstrumentFiles">>;
 def fxray_never_instrument :
   JoinedOrSeparate<["-"], "fxray-never-instrument=">,
   Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"DEPRECATED: Filename defining the whitelist for imbuing the 'never instrument' XRay attribute.">,
-  MarshallingInfoStringVector<"LangOpts->XRayNeverInstrumentFiles">;
+  MarshallingInfoStringVector<LangOpts<"XRayNeverInstrumentFiles">>;
 def fxray_attr_list :
   JoinedOrSeparate<["-"], "fxray-attr-list=">,
   Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"Filename defining the list of functions/types for imbuing XRay attributes.">,
-  MarshallingInfoStringVector<"LangOpts->XRayAttrListFiles">;
+  MarshallingInfoStringVector<LangOpts<"XRayAttrListFiles">>;
 def fxray_modes :
   JoinedOrSeparate<["-"], "fxray-modes=">,
   Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"List of modes to link in by default into XRay instrumented binaries.">;
 
 defm xray_always_emit_customevents : OptInFFlag<"xray-always-emit-customevents",
-  "Always emit __xray_customevent(...) calls even if the containing function is not always instrumented", "", "", [], "LangOpts->XRayAlwaysEmitCustomEvents">;
+  "Always emit __xray_customevent(...) calls even if the containing function is not always instrumented", "", "", [], LangOpts<"XRayAlwaysEmitCustomEvents">>;
 
 defm xray_always_emit_typedevents : OptInFFlag<"xray-always-emit-typedevents",
-  "Always emit __xray_typedevent(...) calls even if the containing function is not always instrumented", "", "", [], "LangOpts->XRayAlwaysEmitTypedEvents">;
+  "Always emit __xray_typedevent(...) calls even if the containing function is not always instrumented", "", "", [], LangOpts<"XRayAlwaysEmitTypedEvents">>;
 
 defm xray_ignore_loops : OptInFFlag<"xray-ignore-loops",
-  "Don't instrument functions with loops unless they also meet the minimum function size", "", "", [], "CodeGenOpts.XRayIgnoreLoops">;
+  "Don't instrument functions with loops unless they also meet the minimum function size", "", "", [], CodeGenOpts<"XRayIgnoreLoops">>;
 defm xray_function_index : OptOutFFlag<"xray-function-index", "",
-  "Omit function index section at the expense of single-function patching performance", "", [], "CodeGenOpts.XRayOmitFunctionIndex">;
+  "Omit function index section at the expense of single-function patching performance", "", [], CodeGenOpts<"XRayOmitFunctionIndex">>;
 
 def fxray_link_deps : Flag<["-"], "fxray-link-deps">, Group<f_Group>,
   Flags<[CC1Option]>,
   HelpText<"Tells clang to add the link dependencies for XRay.">;
 def fnoxray_link_deps : Flag<["-"], "fnoxray-link-deps">, Group<f_Group>,
   Flags<[CC1Option]>;
 
 def fxray_instrumentation_bundle :
   JoinedOrSeparate<["-"], "fxray-instrumentation-bundle=">,
   Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"Select which XRay instrumentation points to emit. Options: all, none, function-entry, function-exit, function, custom. Default is 'all'.  'function' includes both 'function-entry' and 'function-exit'.">;
 
 def fxray_function_groups :
   Joined<["-"], "fxray-function-groups=">,
   Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"Only instrument 1 of N groups">,
-  MarshallingInfoStringInt<"CodeGenOpts.XRayTotalFunctionGroups", "1">;
+  MarshallingInfoStringInt<CodeGenOpts<"XRayTotalFunctionGroups">, "1">;
 
 def fxray_selected_function_group :
   Joined<["-"], "fxray-selected-function-group=">,
   Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"When using -fxray-function-groups, select which group of functions to instrument. Valid range is 0 to fxray-function-groups - 1">,
-  MarshallingInfoStringInt<"CodeGenOpts.XRaySelectedFunctionGroup", "0">;
+  MarshallingInfoStringInt<CodeGenOpts<"XRaySelectedFunctionGroup">, "0">;
 
 
 defm fine_grained_bitfield_accesses : BoolOption<"fine-grained-bitfield-accesses",
-  "CodeGenOpts.FineGrainedBitfieldAccesses", DefaultsToFalse,
+  CodeGenOpts<"FineGrainedBitfieldAccesses">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Use separate accesses for consecutive bitfield runs with legal widths and alignments.">,
   ResetBy<NegFlag, [], "Use large-integer access for consecutive bitfield runs.">,
   BothFlags<[CC1Option]>, "f">,
   Group<f_clang_Group>;
 
 defm experimental_relative_cxx_abi_vtables : BoolFOption<"experimental-relative-c++-abi-vtables",
-  "LangOpts->RelativeCXXABIVTables", DefaultsToFalse,
+  LangOpts<"RelativeCXXABIVTables">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Use">, ResetBy<NegFlag, [], "Do not use">,
   BothFlags<[CC1Option], " the experimental C++ class ABI for classes with virtual tables">>;
 
 def flat__namespace : Flag<["-"], "flat_namespace">;
 def flax_vector_conversions_EQ : Joined<["-"], "flax-vector-conversions=">, Group<f_Group>,
   HelpText<"Enable implicit vector bit-casts">, Values<"none,integer,all">, Flags<[CC1Option]>,
   NormalizedValuesScope<"LangOptions::LaxVectorConversionKind">,
   NormalizedValues<["None", "Integer", "All"]>,
-  MarshallingInfoString<"LangOpts->LaxVectorConversions", "All">, AutoNormalizeEnum;
+  MarshallingInfoString<LangOpts<"LaxVectorConversions">, "All">, AutoNormalizeEnum;
 def flax_vector_conversions : Flag<["-"], "flax-vector-conversions">, Group<f_Group>,
   Alias<flax_vector_conversions_EQ>, AliasArgs<["integer"]>;
 def flimited_precision_EQ : Joined<["-"], "flimited-precision=">, Group<f_Group>;
 def fapple_link_rtlib : Flag<["-"], "fapple-link-rtlib">, Group<f_Group>,
   HelpText<"Force linking the clang builtins runtime library">;
 def flto_EQ : Joined<["-"], "flto=">, Flags<[CoreOption, CC1Option]>, Group<f_Group>,
   HelpText<"Set LTO mode to either 'full' or 'thin'">, Values<"thin,full">;
 def flto : Flag<["-"], "flto">, Flags<[CoreOption, CC1Option]>, Group<f_Group>,
   HelpText<"Enable LTO in 'full' mode">;
 def fno_lto : Flag<["-"], "fno-lto">, Flags<[CoreOption, CC1Option]>, 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<[CoreOption, CC1Option]>, Group<f_Group>,
   HelpText<"Perform ThinLTO importing using provided function summary index">;
 def fthin_link_bitcode_EQ : Joined<["-"], "fthin-link-bitcode=">,
   Flags<[CoreOption, CC1Option]>, Group<f_Group>,
   HelpText<"Write minimized bitcode to <file> for the ThinLTO thin link only">,
-  MarshallingInfoString<"CodeGenOpts.ThinLinkBitcodeFile">;
+  MarshallingInfoString<CodeGenOpts<"ThinLinkBitcodeFile">>;
 def fmacro_backtrace_limit_EQ : Joined<["-"], "fmacro-backtrace-limit=">,
                                 Group<f_Group>, Flags<[NoXarchOption, CoreOption]>;
 defm merge_all_constants : BoolFOption<"merge-all-constants",
-  "CodeGenOpts.MergeAllConstants", DefaultsToFalse,
+  CodeGenOpts<"MergeAllConstants">, DefaultsToFalse,
   ChangedBy<PosFlag, [CoreOption], "Allow">, ResetBy<NegFlag, [], "Disallow">,
   BothFlags<[], " merging of constants">>;
 def fmessage_length_EQ : Joined<["-"], "fmessage-length=">, Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"Format message diagnostics so that they fit within N columns">,
-  MarshallingInfoStringInt<"MessageLength">, IsDiag;
+  MarshallingInfoStringInt<DiagnosticOpts<"MessageLength">>;
 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">,
-  MarshallingInfoFlag<"LangOpts->MSVCCompat">;
+  MarshallingInfoFlag<LangOpts<"MSVCCompat">>;
 def fms_volatile : Flag<["-"], "fms-volatile">, Group<f_Group>, Flags<[CC1Option]>,
-  MarshallingInfoFlag<"CodeGenOpts.MSVolatile">;
+  MarshallingInfoFlag<CodeGenOpts<"MSVolatile">>;
 def fmsc_version : Joined<["-"], "fmsc-version=">, Group<f_Group>, Flags<[NoXarchOption, 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))">;
 defm delayed_template_parsing : BoolFOption<"delayed-template-parsing",
-  "LangOpts->DelayedTemplateParsing", DefaultsToFalse,
+  LangOpts<"DelayedTemplateParsing">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Parse templated function definitions at the end of the translation unit">,
   ResetBy<NegFlag, [NoXarchOption], "Disable delayed template parsing">,
   BothFlags<[CoreOption]>>;
 def fms_memptr_rep_EQ : Joined<["-"], "fms-memptr-rep=">, Group<f_Group>, Flags<[CC1Option]>,
   Values<"single,multiple,virtual">, NormalizedValuesScope<"LangOptions">,
   NormalizedValues<["PPTMK_FullGeneralitySingleInheritance", "PPTMK_FullGeneralityMultipleInheritance",
                     "PPTMK_FullGeneralityVirtualInheritance"]>,
-  MarshallingInfoString<"LangOpts->MSPointerToMemberRepresentationMethod", "PPTMK_BestCase">,
+  MarshallingInfoString<LangOpts<"MSPointerToMemberRepresentationMethod">, "PPTMK_BestCase">,
   AutoNormalizeEnum;
 def fmodules_cache_path : Joined<["-"], "fmodules-cache-path=">, Group<i_Group>,
   Flags<[NoXarchOption, CC1Option]>, MetaVarName<"<directory>">,
   HelpText<"Specify the module cache path">;
 def fmodules_user_build_path : Separate<["-"], "fmodules-user-build-path">, Group<i_Group>,
   Flags<[NoXarchOption, CC1Option]>, MetaVarName<"<directory>">,
   HelpText<"Specify the module user build path">,
-  MarshallingInfoString<"HeaderSearchOpts->ModuleUserBuildPath">;
+  MarshallingInfoString<HeaderSearchOpts<"ModuleUserBuildPath">>;
 def fprebuilt_module_path : Joined<["-"], "fprebuilt-module-path=">, Group<i_Group>,
   Flags<[NoXarchOption, CC1Option]>, MetaVarName<"<directory>">,
   HelpText<"Specify the prebuilt module path">;
 defm prebuilt_implicit_modules : OptInFFlag<"prebuilt-implicit-modules",
   "Look up implicit modules in the prebuilt module path", "", "",
-  [NoXarchOption, CC1Option], "HeaderSearchOpts->EnablePrebuiltImplicitModules">;
+  [NoXarchOption, CC1Option], HeaderSearchOpts<"EnablePrebuiltImplicitModules">>;
 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">,
-  MarshallingInfoStringInt<"HeaderSearchOpts->ModuleCachePruneInterval", "7 * 24 * 60 * 60">;
+  MarshallingInfoStringInt<HeaderSearchOpts<"ModuleCachePruneInterval">, "7 * 24 * 60 * 60">;
 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">,
-  MarshallingInfoStringInt<"HeaderSearchOpts->ModuleCachePruneAfter", "31 * 24 * 60 * 60">;
+  MarshallingInfoStringInt<HeaderSearchOpts<"ModuleCachePruneAfter">, "31 * 24 * 60 * 60">;
 def fmodules_search_all : Flag <["-"], "fmodules-search-all">, Group<f_Group>,
   Flags<[NoXarchOption, 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">,
-  MarshallingInfoStringInt<"HeaderSearchOpts->BuildSessionTimestamp", "0", "uint64_t">;
+  MarshallingInfoStringInt<HeaderSearchOpts<"BuildSessionTimestamp">, "0", "uint64_t">;
 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">,
-  MarshallingInfoFlag<"HeaderSearchOpts->ModulesValidateOncePerBuildSession">;
+  MarshallingInfoFlag<HeaderSearchOpts<"ModulesValidateOncePerBuildSession">>;
 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">,
-  MarshallingInfoNegativeFlag<"HeaderSearchOpts->ModulesValidateDiagnosticOptions">;
+  MarshallingInfoNegativeFlag<HeaderSearchOpts<"ModulesValidateDiagnosticOptions">>;
 defm modules_validate_system_headers : BoolOption<"modules-validate-system-headers",
-  "HeaderSearchOpts->ModulesValidateSystemHeaders", DefaultsToFalse,
+  HeaderSearchOpts<"ModulesValidateSystemHeaders">, DefaultsToFalse,
   ChangedBy<PosFlag, [CC1Option], "Validate the system headers that a module depends on when loading the module">,
   ResetBy<NegFlag, [NoXarchOption]>, BothFlags<[]>, "f">, Group<i_Group>;
 
 def fvalidate_ast_input_files_content:
   Flag <["-"], "fvalidate-ast-input-files-content">,
   Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"Compute and store the hash of input files used to build an AST."
            " Files with mismatching mtime's are considered valid"
            " if both contents is identical">,
-  MarshallingInfoFlag<"HeaderSearchOpts->ValidateASTInputFilesContent">;
+  MarshallingInfoFlag<HeaderSearchOpts<"ValidateASTInputFilesContent">>;
 def fmodules_validate_input_files_content:
   Flag <["-"], "fmodules-validate-input-files-content">,
   Group<f_Group>, Flags<[NoXarchOption]>,
   HelpText<"Validate PCM input files based on content if mtime differs">;
 def fno_modules_validate_input_files_content:
   Flag <["-"], "fno_modules-validate-input-files-content">,
   Group<f_Group>, Flags<[NoXarchOption]>;
 def fpch_validate_input_files_content:
   Flag <["-"], "fpch-validate-input-files-content">,
   Group<f_Group>, Flags<[NoXarchOption]>,
   HelpText<"Validate PCH input files based on content if mtime differs">;
 def fno_pch_validate_input_files_content:
   Flag <["-"], "fno_pch-validate-input-files-content">,
   Group<f_Group>, Flags<[NoXarchOption]>;
 defm pch_instantiate_templates : BoolFOption<"pch-instantiate-templates",
-  "LangOpts->PCHInstantiateTemplates", DefaultsToFalse,
+  LangOpts<"PCHInstantiateTemplates">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Instantiate templates already while building a PCH">,
   ResetBy<NegFlag>, BothFlags<[CC1Option, CoreOption]>>;
 defm pch_codegen: OptInFFlag<"pch-codegen", "Generate ", "Do not generate ",
   "code for uses of this PCH that assumes an explicit object file will be built for the PCH">;
 defm pch_debuginfo: OptInFFlag<"pch-debuginfo", "Generate ", "Do not generate ",
   "debug info for types in an object file built from this PCH and do not generate them elsewhere">;
 
 def fmodules : Flag <["-"], "fmodules">, Group<f_Group>,
   Flags<[NoXarchOption, CC1Option]>,
   HelpText<"Enable the 'modules' language feature">;
 def fimplicit_module_maps : Flag <["-"], "fimplicit-module-maps">, Group<f_Group>,
   Flags<[NoXarchOption, CC1Option]>,
   HelpText<"Implicitly search the file system for module map files.">,
-  MarshallingInfoFlag<"HeaderSearchOpts->ImplicitModuleMaps">;
+  MarshallingInfoFlag<HeaderSearchOpts<"ImplicitModuleMaps">>;
 def fmodules_ts : Flag <["-"], "fmodules-ts">, Group<f_Group>,
   Flags<[CC1Option]>, HelpText<"Enable support for the C++ Modules TS">,
-  MarshallingInfoFlag<"LangOpts->ModulesTS">;
+  MarshallingInfoFlag<LangOpts<"ModulesTS">>;
 def fmodule_maps : Flag <["-"], "fmodule-maps">, Alias<fimplicit_module_maps>;
 def fmodule_name_EQ : Joined<["-"], "fmodule-name=">, Group<f_Group>,
   Flags<[NoXarchOption,CC1Option]>, MetaVarName<"<name>">,
   HelpText<"Specify the name of the module to build">,
-  MarshallingInfoString<"LangOpts->ModuleName">;
+  MarshallingInfoString<LangOpts<"ModuleName">>;
 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 fsystem_module : Flag<["-"], "fsystem-module">, Flags<[CC1Option]>,
   HelpText<"Build this module as a system module. Only used with -emit-module">,
-  MarshallingInfoFlag<"FrontendOpts.IsSystemModule">;
+  MarshallingInfoFlag<FrontendOpts<"IsSystemModule">>;
 def fmodule_map_file : Joined<["-"], "fmodule-map-file=">,
   Group<f_Group>, Flags<[NoXarchOption,CC1Option]>, MetaVarName<"<file>">,
   HelpText<"Load this module map file">,
-  MarshallingInfoStringVector<"FrontendOpts.ModuleMapFiles">;
+  MarshallingInfoStringVector<FrontendOpts<"ModuleMapFiles">>;
 def fmodule_file : Joined<["-"], "fmodule-file=">,
   Group<i_Group>, Flags<[NoXarchOption,CC1Option]>, MetaVarName<"[<name>=]<file>">,
   HelpText<"Specify the mapping of module name to precompiled module file, or load a module file if name is omitted.">;
 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<[NoXarchOption,CC1Option]>,
   HelpText<"Require declaration of modules used within a module">;
 def fmodules_strict_decluse : Flag <["-"], "fmodules-strict-decluse">, Group<f_Group>,
   Flags<[NoXarchOption,CC1Option]>,
   HelpText<"Like -fmodules-decluse but requires all headers to be in modules">,
-  MarshallingInfoFlag<"LangOpts->ModulesStrictDeclUse">;
+  MarshallingInfoFlag<LangOpts<"ModulesStrictDeclUse">>;
 def fno_modules_search_all : Flag <["-"], "fno-modules-search-all">, Group<f_Group>,
   Flags<[NoXarchOption, CC1Option]>;
 defm implicit_modules : BoolFOption<"implicit-modules",
-  "LangOpts->ImplicitModules", DefaultsToTrue,
+  LangOpts<"ImplicitModules">, DefaultsToTrue,
   ChangedBy<NegFlag>, ResetBy<PosFlag>, BothFlags<[NoXarchOption]>>;
 def fretain_comments_from_system_headers : Flag<["-"], "fretain-comments-from-system-headers">, Group<f_Group>, Flags<[CC1Option]>,
-  MarshallingInfoFlag<"LangOpts->RetainCommentsFromSystemHeaders">;
+  MarshallingInfoFlag<LangOpts<"RetainCommentsFromSystemHeaders">>;
 
 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_xl_pragma_pack : Flag<["-"], "fno-xl-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]>, MarshallingInfoNegativeFlag<"CodeGenOpts.AssumeSaneOperatorNew">;
+  Flags<[CC1Option]>, MarshallingInfoNegativeFlag<CodeGenOpts<"AssumeSaneOperatorNew">>;
 def fno_builtin : Flag<["-"], "fno-builtin">, Group<f_Group>, Flags<[CC1Option, CoreOption]>,
   HelpText<"Disable implicit builtin knowledge of functions">;
 def fno_builtin_ : Joined<["-"], "fno-builtin-">, Group<f_Group>, Flags<[CC1Option, CoreOption]>,
   HelpText<"Disable implicit builtin knowledge of a specific function">;
 def fno_diagnostics_color : Flag<["-"], "fno-diagnostics-color">, Group<f_Group>,
   Flags<[CoreOption, NoXarchOption]>;
 def fno_common : Flag<["-"], "fno-common">, Group<f_Group>, Flags<[CC1Option]>,
     HelpText<"Compile common globals like normal definitions">;
def fno_global_isel : Flag<["-"], "fno-global-isel">, Group<f_clang_Group>,
   HelpText<"Disables the global instruction selector">;
 def fno_experimental_isel : Flag<["-"], "fno-experimental-isel">, Group<f_clang_Group>,
   Alias<fno_global_isel>;
 def fveclib : Joined<["-"], "fveclib=">, Group<f_Group>, Flags<[CC1Option]>,
     HelpText<"Use the given vector functions library">,
     Values<"Accelerate,libmvec,MASSV,SVML,none">,
     NormalizedValuesScope<"CodeGenOptions">,
     NormalizedValues<["Accelerate", "LIBMVEC", "MASSV", "SVML", "NoLibrary"]>,
-    MarshallingInfoString<"CodeGenOpts.VecLib", "NoLibrary">, AutoNormalizeEnum;
+    MarshallingInfoString<CodeGenOpts<"VecLib">, "NoLibrary">, AutoNormalizeEnum;
 def fno_lax_vector_conversions : Flag<["-"], "fno-lax-vector-conversions">, Group<f_Group>,
   Alias<flax_vector_conversions_EQ>, AliasArgs<["none"]>;
 def fno_modules : Flag <["-"], "fno-modules">, Group<f_Group>,
   Flags<[NoXarchOption]>;
 def fno_implicit_module_maps : Flag <["-"], "fno-implicit-module-maps">, Group<f_Group>,
   Flags<[NoXarchOption]>;
 def fno_module_maps : Flag <["-"], "fno-module-maps">, Alias<fno_implicit_module_maps>;
 def fno_modules_decluse : Flag <["-"], "fno-modules-decluse">, 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 fdiagnostics_absolute_paths : Flag<["-"], "fdiagnostics-absolute-paths">, Group<f_Group>,
   Flags<[CC1Option, CoreOption]>, HelpText<"Print absolute paths in diagnostics">,
-  MarshallingInfoFlag<"AbsolutePath">, IsDiag;
+  MarshallingInfoFlag<DiagnosticOpts<"AbsolutePath">>;
 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<[NoXarchOption, 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_overflow : Flag<["-"], "fno-strict-overflow">, Group<f_Group>;
 def fno_temp_file : Flag<["-"], "fno-temp-file">, Group<f_Group>,
   Flags<[CC1Option, CoreOption]>, HelpText<
   "Directly create compilation output files. This may lead to incorrect incremental builds if the compiler crashes">,
-  MarshallingInfoNegativeFlag<"FrontendOpts.UseTemporary">;
+  MarshallingInfoNegativeFlag<FrontendOpts<"UseTemporary">>;
 defm use_cxa_atexit : BoolFOption<"use-cxa-atexit",
-  "CodeGenOpts.CXAAtExit", DefaultsToTrue,
+  CodeGenOpts<"CXAAtExit">, DefaultsToTrue,
   ChangedBy<NegFlag, [], "Don't use __cxa_atexit for calling destructors">,
   ResetBy<PosFlag>>;
 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>, Flags<[CC1Option]>,
-  MarshallingInfoNegativeFlag<"CodeGenOpts.AsmVerbose">;
+  MarshallingInfoNegativeFlag<CodeGenOpts<"AsmVerbose">>;
 def fno_working_directory : Flag<["-"], "fno-working-directory">, Group<f_Group>;
 def fno_wrapv : Flag<["-"], "fno-wrapv">, 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>;
 defm objc_convert_messages_to_runtime_calls : BoolFOption<"objc-convert-messages-to-runtime-calls",
-  "CodeGenOpts.ObjCConvertMessagesToRuntimeCalls", DefaultsToTrue,
+  CodeGenOpts<"ObjCConvertMessagesToRuntimeCalls">, DefaultsToTrue,
   ChangedBy<NegFlag>, ResetBy<PosFlag>>;
 defm objc_arc_exceptions : OptInFFlag<"objc-arc-exceptions",
   "Use EH-safe code when synthesizing retains and releases in -fobjc-arc",
-  "", "", [], "CodeGenOpts.ObjCAutoRefCountExceptions">;
+  "", "", [], CodeGenOpts<"ObjCAutoRefCountExceptions">>;
 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>;
 defm objc_exceptions : BoolFOption<"objc-exceptions",
-  "LangOpts->ObjCExceptions", DefaultsToFalse,
+  LangOpts<"ObjCExceptions">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Enable Objective-C exceptions">, ResetBy<NegFlag>>;
 defm application_extension : BoolFOption<"application-extension",
-  "LangOpts->AppExt", DefaultsToFalse,
+  LangOpts<"AppExt">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Restrict code to those available for App Extensions">,
   ResetBy<NegFlag>>;
 defm relaxed_template_template_args : BoolFOption<"relaxed-template-template-args",
-  "LangOpts->RelaxedTemplateTemplateArgs", DefaultsToFalse,
+  LangOpts<"RelaxedTemplateTemplateArgs">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Enable C++17 relaxed template template argument matching">,
   ResetBy<NegFlag>>;
 defm sized_deallocation : BoolFOption<"sized-deallocation",
-  "LangOpts->SizedDeallocation", DefaultsToFalse,
+  LangOpts<"SizedDeallocation">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Enable C++14 sized global deallocation functions">,
   ResetBy<NegFlag>>;
 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]>,
-  MarshallingInfoStringInt<"LangOpts->NewAlignOverride">;
+  MarshallingInfoStringInt<LangOpts<"NewAlignOverride">>;
 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>;
 defm objc_infer_related_result_type : BoolFOption<"objc-infer-related-result-type",
-  "LangOpts->ObjCInferRelatedResultType", DefaultsToTrue,
+  LangOpts<"ObjCInferRelatedResultType">, DefaultsToTrue,
   ChangedBy<NegFlag, [], "do not infer Objective-C related result type based on method family">,
   ResetBy<PosFlag>>;
 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, CoreOption]>,
   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]>,
   HelpText<"Parse OpenMP pragmas and generate parallel code.">,
-  MarshallingInfoFlag<"LangOpts->OpenMP", "0u">, Normalizer<"makeFlagToValueNormalizer(50u)">;
+  MarshallingInfoFlag<LangOpts<"OpenMP">, "0u">, Normalizer<"makeFlagToValueNormalizer(50u)">;
 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, HelpHidden]>;
 def fnoopenmp_use_tls : Flag<["-"], "fnoopenmp-use-tls">, Group<f_Group>,
   Flags<[CC1Option, NoArgumentUnused, HelpHidden]>;
 def fopenmp_targets_EQ : CommaJoined<["-"], "fopenmp-targets=">, Flags<[NoXarchOption, CC1Option]>,
def fno_openmp_cuda_force_full_runtime : Flag<["-"], "fno-openmp-cuda-force-full-runtime">, Group<f_Group>,
   Flags<[NoArgumentUnused, HelpHidden]>;
 def fopenmp_cuda_number_of_sm_EQ : Joined<["-"], "fopenmp-cuda-number-of-sm=">, Group<f_Group>,
   Flags<[CC1Option, NoArgumentUnused, HelpHidden]>;
 def fopenmp_cuda_blocks_per_sm_EQ : Joined<["-"], "fopenmp-cuda-blocks-per-sm=">, Group<f_Group>,
   Flags<[CC1Option, NoArgumentUnused, HelpHidden]>;
 def fopenmp_cuda_teams_reduction_recs_num_EQ : Joined<["-"], "fopenmp-cuda-teams-reduction-recs-num=">, Group<f_Group>,
   Flags<[CC1Option, NoArgumentUnused, HelpHidden]>;
 defm openmp_optimistic_collapse : BoolFOption<"openmp-optimistic-collapse",
-  "LangOpts->OpenMPOptimisticCollapse", DefaultsToFalse,
+  LangOpts<"OpenMPOptimisticCollapse">, DefaultsToFalse,
   ChangedBy<PosFlag>, ResetBy<NegFlag>, BothFlags<[NoArgumentUnused, HelpHidden]>>;
 def fopenmp_cuda_parallel_target_regions : Flag<["-"], "fopenmp-cuda-parallel-target-regions">, Group<f_Group>,
   Flags<[CC1Option, NoArgumentUnused, HelpHidden]>,
   HelpText<"Support parallel execution of target regions on Cuda-based devices.">;
 def fno_openmp_cuda_parallel_target_regions : Flag<["-"], "fno-openmp-cuda-parallel-target-regions">, Group<f_Group>,
   Flags<[NoArgumentUnused, HelpHidden]>,
   HelpText<"Support only serial execution of target regions on Cuda-based devices.">;
 def static_openmp: Flag<["-"], "static-openmp">,
   HelpText<"Use the static host OpenMP runtime while linking.">;
 def fno_optimize_sibling_calls : Flag<["-"], "fno-optimize-sibling-calls">, Group<f_Group>;
 def foptimize_sibling_calls : Flag<["-"], "foptimize-sibling-calls">, Group<f_Group>;
 defm escaping_block_tail_calls : BoolFOption<"escaping-block-tail-calls",
-  "CodeGenOpts.NoEscapingBlockTailCalls", DefaultsToFalse,
+  CodeGenOpts<"NoEscapingBlockTailCalls">, DefaultsToFalse,
   ChangedBy<NegFlag>, ResetBy<PosFlag>>;
 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">,
-  MarshallingInfoStringInt<"LangOpts->PackStruct">;
+  MarshallingInfoStringInt<LangOpts<"PackStruct">>;
 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">,
-  MarshallingInfoStringInt<"LangOpts->MaxTypeAlign">;
+  MarshallingInfoStringInt<LangOpts<"MaxTypeAlign">>;
 def fno_max_type_align : Flag<["-"], "fno-max-type-align">, Group<f_Group>;
 defm pascal_strings : BoolFOption<"pascal-strings",
-  "LangOpts->PascalStrings", DefaultsToFalse,
+  LangOpts<"PascalStrings">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Recognize and construct Pascal-style string literals">,
   ResetBy<NegFlag>>;
 // Note: This flag has different semantics in the driver and in -cc1. The driver accepts -fpatchable-function-entry=M,N
 // and forwards it to -cc1 as -fpatchable-function-entry=M and -fpatchable-function-entry-offset=N. In -cc1, both flags
 // are treated as a single integer.
 def fpatchable_function_entry_EQ : Joined<["-"], "fpatchable-function-entry=">, Group<f_Group>, Flags<[CC1Option]>,
   MetaVarName<"<N,M>">, HelpText<"Generate M NOPs before function entry and N-M NOPs after function entry">,
-  MarshallingInfoStringInt<"CodeGenOpts.PatchableFunctionEntryCount">;
+  MarshallingInfoStringInt<CodeGenOpts<"PatchableFunctionEntryCount">>;
 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 fdirect_access_external_data : Flag<["-"], "fdirect-access-external-data">, Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"Don't use GOT indirection to reference external data symbols">;
 def fno_direct_access_external_data : Flag<["-"], "fno-direct-access-external-data">, Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"Use GOT indirection to reference external data symbols">;
 defm plt : BoolFOption<"plt",
-  "CodeGenOpts.NoPLT", DefaultsToFalse,
+  CodeGenOpts<"NoPLT">, DefaultsToFalse,
   ChangedBy<NegFlag, [], "Use GOT indirection instead of PLT to make external function calls (x86 only)">,
   ResetBy<PosFlag>>;
 defm ropi : BoolFOption<"ropi",
-  "LangOpts->ROPI", DefaultsToFalse,
+  LangOpts<"ROPI">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Generate read-only position independent code (ARM only)">,
   ResetBy<NegFlag>>;
 defm rwpi : BoolFOption<"rwpi",
-  "LangOpts->RWPI", DefaultsToFalse,
+  LangOpts<"RWPI">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Generate read-write position independent code (ARM only)">,
   ResetBy<NegFlag>>;
 def fplugin_EQ : Joined<["-"], "fplugin=">, Group<f_Group>, Flags<[NoXarchOption]>, MetaVarName<"<dsopath>">,
   HelpText<"Load the named plugin (dynamic shared object)">;
 def fpass_plugin_EQ : Joined<["-"], "fpass-plugin=">,
   Group<f_Group>, Flags<[CC1Option]>, MetaVarName<"<dsopath>">,
   HelpText<"Load pass plugin from a dynamic shared object file (only with new pass manager).">,
-  MarshallingInfoStringVector<"CodeGenOpts.PassPlugins">;
+  MarshallingInfoStringVector<CodeGenOpts<"PassPlugins">>;
 defm preserve_as_comments : BoolFOption<"preserve-as-comments",
-  "CodeGenOpts.PreserveAsmComments", DefaultsToTrue,
+  CodeGenOpts<"PreserveAsmComments">, DefaultsToTrue,
   ChangedBy<NegFlag, [], "Do not preserve comments in inline assembly">,
   ResetBy<PosFlag>>;
 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">;
 defm rtti : OptOutFFlag<"rtti", "", "Disable generation of rtti information">;
 defm rtti_data : OptOutFFlag<"rtti-data", "", "Disable generation of RTTI data">;
 def : Flag<["-"], "fsched-interblock">, Group<clang_ignored_f_Group>;
 defm short_enums : BoolFOption<"short-enums",
-  "LangOpts->ShortEnums", DefaultsToFalse,
+  LangOpts<"ShortEnums">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Allocate to an enum type only as many bytes as it"
            " needs for the declared range of possible values">,
   ResetBy<NegFlag>>;
 def fchar8__t : Flag<["-"], "fchar8_t">, Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"Enable C++ builtin type char8_t">;
 def fno_char8__t : Flag<["-"], "fno-char8_t">, Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"Disable C++ builtin type char8_t">;
 def fshort_wchar : Flag<["-"], "fshort-wchar">, Group<f_Group>,
   HelpText<"Force wchar_t to be a short unsigned int">;
 def fno_short_wchar : Flag<["-"], "fno-short-wchar">, Group<f_Group>,
   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">, Values<"best,all">,
   NormalizedValues<["Ovl_Best", "Ovl_All"]>,
-  MarshallingInfoString<"ShowOverloads", "Ovl_All">, AutoNormalizeEnum, IsDiag;
+  MarshallingInfoString<DiagnosticOpts<"ShowOverloads">, "Ovl_All">, AutoNormalizeEnum;
 defm show_column : BoolFOption<"show-column",
-  "ShowColumn", DefaultsToTrue,
+  DiagnosticOpts<"ShowColumn">, DefaultsToTrue,
   ChangedBy<NegFlag, [], "Do not include column number on diagnostics">,
-  ResetBy<PosFlag>>, IsDiag;
+  ResetBy<PosFlag>>;
 defm show_source_location : BoolFOption<"show-source-location",
-  "ShowLocation", DefaultsToTrue,
+  DiagnosticOpts<"ShowLocation">, DefaultsToTrue,
   ChangedBy<NegFlag, [], "Do not include source location information with diagnostics">,
-  ResetBy<PosFlag>>, IsDiag;
+  ResetBy<PosFlag>>;
 defm spell_checking : BoolFOption<"spell-checking",
-  "LangOpts->SpellChecking", DefaultsToTrue,
+  LangOpts<"SpellChecking">, DefaultsToTrue,
   ChangedBy<NegFlag, [], "Disable spell-checking">, ResetBy<PosFlag>>;
 def fspell_checking_limit_EQ : Joined<["-"], "fspell-checking-limit=">, Group<f_Group>;
 def fsigned_bitfields : Flag<["-"], "fsigned-bitfields">, Group<f_Group>;
 defm signed_char : OptOutFFlag<"signed-char", "char is signed", "char is unsigned">;
 def fsplit_stack : Flag<["-"], "fsplit-stack">, Group<f_Group>;
 def fstack_protector_all : Flag<["-"], "fstack-protector-all">, Group<f_Group>,
   HelpText<"Enable stack protectors for all functions">;
 defm stack_clash_protection : BoolFOption<"stack-clash-protection",
-  "CodeGenOpts.StackClashProtector", DefaultsToFalse,
+  CodeGenOpts<"StackClashProtector">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Enable">, ResetBy<NegFlag, [], "Disable">,
   BothFlags<[], " stack clash protection">>;
 def fstack_protector_strong : Flag<["-"], "fstack-protector-strong">, Group<f_Group>,
   HelpText<"Enable stack protectors for some functions vulnerable to stack smashing. "
            "Compared to -fstack-protector, this uses a stronger heuristic "
            "that includes functions containing arrays of any size (and any type), "
            "as well as any calls to alloca or the taking of an address from a local variable">;
 def fstack_protector : Flag<["-"], "fstack-protector">, Group<f_Group>,
   HelpText<"Enable stack protectors for some functions vulnerable to stack smashing. "
            "This uses a loose heuristic which considers functions vulnerable if they "
            "contain a char (or 8bit integer) array or constant sized calls to alloca "
            ", which are of greater size than ssp-buffer-size (default: 8 bytes). All "
            "variable sized calls to alloca are considered vulnerable. A function with "
            "a stack protector has a guard value added to the stack frame that is "
            "checked on function exit. The guard value must be positioned in the "
            "stack frame such that a buffer overflow from a vulnerable variable will "
            "overwrite the guard value before overwriting the function's return "
            "address. The reference stack guard value is stored in a global variable.">;
 def ftrivial_auto_var_init : Joined<["-"], "ftrivial-auto-var-init=">, Group<f_Group>,
   Flags<[CC1Option, CoreOption]>, HelpText<"Initialize trivial automatic stack variables: uninitialized (default)"
   " | pattern">, Values<"uninitialized,zero,pattern">,
   NormalizedValuesScope<"LangOptions::TrivialAutoVarInitKind">,
   NormalizedValues<["Uninitialized", "Zero", "Pattern"]>,
-  MarshallingInfoString<"LangOpts->TrivialAutoVarInit", "Uninitialized">, AutoNormalizeEnum;
+  MarshallingInfoString<LangOpts<"TrivialAutoVarInit">, "Uninitialized">, AutoNormalizeEnum;
 def enable_trivial_var_init_zero : Flag<["-"], "enable-trivial-auto-var-init-zero-knowing-it-will-be-removed-from-clang">,
   Flags<[CC1Option, CoreOption]>,
   HelpText<"Trivial automatic variable initialization to zero is only here for benchmarks, it'll eventually be removed, and I'm OK with that because I'm only using it to benchmark">;
 def ftrivial_auto_var_init_stop_after : Joined<["-"], "ftrivial-auto-var-init-stop-after=">, Group<f_Group>,
   Flags<[CC1Option, CoreOption]>, HelpText<"Stop initializing trivial automatic stack variables after the specified number of instances">,
-  MarshallingInfoStringInt<"LangOpts->TrivialAutoVarInitStopAfter">;
+  MarshallingInfoStringInt<LangOpts<"TrivialAutoVarInitStopAfter">>;
 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 fdebug_macro : Flag<["-"], "fdebug-macro">, Group<f_Group>, Flags<[CoreOption]>,
   HelpText<"Emit macro debug information">;
 def fno_debug_macro : Flag<["-"], "fno-debug-macro">, Group<f_Group>, Flags<[CoreOption]>,
   HelpText<"Do not emit macro debug information">;
 def fstrict_aliasing : Flag<["-"], "fstrict-aliasing">, Group<f_Group>,
   Flags<[NoXarchOption, 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">,
-  MarshallingInfoFlag<"CodeGenOpts.StrictEnums">;
+  MarshallingInfoFlag<CodeGenOpts<"StrictEnums">>;
 defm strict_vtable_pointers : BoolFOption<"strict-vtable-pointers",
-  "CodeGenOpts.StrictVTablePointers", DefaultsToFalse,
+  CodeGenOpts<"StrictVTablePointers">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Enable optimizations based on the strict rules for"
             " overwriting polymorphic C++ objects">,
   ResetBy<NegFlag>>;
 def fstrict_overflow : Flag<["-"], "fstrict-overflow">, Group<f_Group>;
 def fsyntax_only : Flag<["-"], "fsyntax-only">,
   Flags<[NoXarchOption,CoreOption,CC1Option,FC1Option]>, Group<Action_Group>;
 def ftabstop_EQ : Joined<["-"], "ftabstop=">, Group<f_Group>;
 def ftemplate_depth_EQ : Joined<["-"], "ftemplate-depth=">, Group<f_Group>;
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 : 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]>,
-  MarshallingInfoStringInt<"LangOpts->NumLargeByValueCopy">;
+  MarshallingInfoStringInt<LangOpts<"NumLargeByValueCopy">>;
 
 // 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<[NoXarchOption]>;
 
 def : Flag<["-"], "fterminated-vtables">, Alias<fapple_kext>;
 defm threadsafe_statics : BoolFOption<"threadsafe-statics",
-  "LangOpts->ThreadsafeStatics", DefaultsToTrue,
+  LangOpts<"ThreadsafeStatics">, DefaultsToTrue,
   ChangedBy<NegFlag, [], "Do not emit code to make initialization of local statics thread safe">,
   ResetBy<PosFlag>>;
 def ftime_report : Flag<["-"], "ftime-report">, Group<f_Group>, Flags<[CC1Option]>,
-  MarshallingInfoFlag<"CodeGenOpts.TimePasses">;
+  MarshallingInfoFlag<CodeGenOpts<"TimePasses">>;
 def ftime_report_EQ: Joined<["-"], "ftime-report=">, Group<f_Group>,
   Flags<[CC1Option]>, Values<"per-pass,per-pass-run">,
-  MarshallingInfoFlag<"CodeGenOpts.TimePassesPerRun">,
+  MarshallingInfoFlag<CodeGenOpts<"TimePassesPerRun">>,
   HelpText<"(For new pass manager) \"per-pass\": one report for each pass; "
            "\"per-pass-run\": one report for each pass invocation">;
 def ftime_trace : Flag<["-"], "ftime-trace">, Group<f_Group>,
   HelpText<"Turn on time profiler. Generates JSON file based on output filename.">,
   DocBrief<[{
 Turn on time profiler. Generates JSON file based on output filename. Results
 can be analyzed with chrome://tracing or `Speedscope App
 <https://www.speedscope.app>`_ for flamegraph visualization.}]>,
   Flags<[CC1Option, CoreOption]>,
-  MarshallingInfoFlag<"FrontendOpts.TimeTrace">;
+  MarshallingInfoFlag<FrontendOpts<"TimeTrace">>;
 def ftime_trace_granularity_EQ : Joined<["-"], "ftime-trace-granularity=">, Group<f_Group>,
   HelpText<"Minimum time granularity (in microseconds) traced by time profiler">,
   Flags<[CC1Option, CoreOption]>,
-  MarshallingInfoStringInt<"FrontendOpts.TimeTraceGranularity", "500u">;
+  MarshallingInfoStringInt<FrontendOpts<"TimeTraceGranularity">, "500u">;
 def fproc_stat_report : Joined<["-"], "fproc-stat-report">, Group<f_Group>,
   HelpText<"Print subprocess statistics">;
 def fproc_stat_report_EQ : Joined<["-"], "fproc-stat-report=">, Group<f_Group>,
   HelpText<"Save subprocess statistics to the given file">;
 def ftlsmodel_EQ : Joined<["-"], "ftls-model=">, Group<f_Group>, Flags<[CC1Option]>,
   Values<"global-dynamic,local-dynamic,initial-exec,local-exec">,
   NormalizedValuesScope<"CodeGenOptions">,
   NormalizedValues<["GeneralDynamicTLSModel", "LocalDynamicTLSModel", "InitialExecTLSModel", "LocalExecTLSModel"]>,
-  MarshallingInfoString<"CodeGenOpts.DefaultTLSModel", "GeneralDynamicTLSModel">, AutoNormalizeEnum;
+  MarshallingInfoString<CodeGenOpts<"DefaultTLSModel">, "GeneralDynamicTLSModel">, AutoNormalizeEnum;
 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">,
-  MarshallingInfoString<"CodeGenOpts.TrapFuncName">;
+  MarshallingInfoString<CodeGenOpts<"TrapFuncName">>;
 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]>;
 defm reroll_loops : BoolFOption<"reroll-loops",
-  "CodeGenOpts.RerollLoops", DefaultsToFalse,
+  CodeGenOpts<"RerollLoops">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Turn on loop reroller">, ResetBy<NegFlag>>;
 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>;
 defm register_global_dtors_with_atexit : BoolFOption<"register-global-dtors-with-atexit",
-  "CodeGenOpts.RegisterGlobalDtorsWithAtExit", DefaultsToFalse,
+  CodeGenOpts<"RegisterGlobalDtorsWithAtExit">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Use">, ResetBy<NegFlag, [], "Don't use">,
   BothFlags<[], " atexit or __cxa_atexit to register global destructors">>;
 defm use_init_array : BoolFOption<"use-init-array",
-  "CodeGenOpts.UseInitArray", DefaultsToTrue,
+  CodeGenOpts<"UseInitArray">, DefaultsToTrue,
   ChangedBy<NegFlag, [], "Use .ctors/.dtors instead of .init_array/.fini_array">,
   ResetBy<PosFlag>>;
 def fno_var_tracking : Flag<["-"], "fno-var-tracking">, Group<clang_ignored_f_Group>;
 def fverbose_asm : Flag<["-"], "fverbose-asm">, Group<f_Group>,
   HelpText<"Generate verbose assembly output">;
 def dA : Flag<["-"], "dA">, Alias<fverbose_asm>;
 defm visibility_from_dllstorageclass : OptInFFlag<"visibility-from-dllstorageclass", "Set the visiblity of symbols in the generated code from their DLL storage class">;
 def fvisibility_dllexport_EQ : Joined<["-"], "fvisibility-dllexport=">, Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"The visibility for dllexport defintions [-fvisibility-from-dllstorageclass]">, Values<"hidden,protected,default">;
 def fvisibility_nodllstorageclass_EQ : Joined<["-"], "fvisibility-nodllstorageclass=">, Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"The visibility for defintiions without an explicit DLL export class [-fvisibility-from-dllstorageclass]">, Values<"hidden,protected,default">;
 def fvisibility_externs_dllimport_EQ : Joined<["-"], "fvisibility-externs-dllimport=">, Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"The visibility for dllimport external declarations [-fvisibility-from-dllstorageclass]">, Values<"hidden,protected,default">;
 def fvisibility_externs_nodllstorageclass_EQ : Joined<["-"], "fvisibility-externs-nodllstorageclass=">, Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"The visibility for external declarations without an explicit DLL dllstorageclass [-fvisibility-from-dllstorageclass]">, Values<"hidden,protected,default">;
 def fvisibility_EQ : Joined<["-"], "fvisibility=">, Group<f_Group>,
   HelpText<"Set the default symbol visibility for all global declarations">, Values<"hidden,default">;
 def fvisibility_inlines_hidden : Flag<["-"], "fvisibility-inlines-hidden">, Group<f_Group>,
   HelpText<"Give inline C++ member functions hidden visibility by default">,
-  Flags<[CC1Option]>, MarshallingInfoFlag<"LangOpts->InlineVisibilityHidden">;
+  Flags<[CC1Option]>, MarshallingInfoFlag<LangOpts<"InlineVisibilityHidden">>;
 defm visibility_inlines_hidden_static_local_var : BoolFOption<"visibility-inlines-hidden-static-local-var",
-  "LangOpts->VisibilityInlinesHiddenStaticLocalVar", DefaultsToFalse,
+  LangOpts<"VisibilityInlinesHiddenStaticLocalVar">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "When -fvisibility-inlines-hidden is enabled, static variables in"
             " inline C++ member functions will also be given hidden visibility by default">,
   ResetBy<NegFlag, [], "Disables -fvisibility-inlines-hidden-static-local-var"
          " (this is the default on non-darwin targets)">, BothFlags<[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 fvisibility_global_new_delete_hidden : Flag<["-"], "fvisibility-global-new-delete-hidden">, Group<f_Group>,
   HelpText<"Give global C++ operator new and delete declarations hidden visibility">, Flags<[CC1Option]>,
-  MarshallingInfoFlag<"LangOpts->GlobalAllocationFunctionVisibilityHidden">;
+  MarshallingInfoFlag<LangOpts<"GlobalAllocationFunctionVisibilityHidden">>;
 defm whole_program_vtables : BoolFOption<"whole-program-vtables",
-  "CodeGenOpts.WholeProgramVTables", DefaultsToFalse,
+  CodeGenOpts<"WholeProgramVTables">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Enables whole-program vtable optimization. Requires -flto">,
   ResetBy<NegFlag>, BothFlags<[CoreOption]>>;
 defm split_lto_unit : BoolFOption<"split-lto-unit",
-  "CodeGenOpts.EnableSplitLTOUnit", DefaultsToFalse,
+  CodeGenOpts<"EnableSplitLTOUnit">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Enables splitting of the LTO unit">,
   ResetBy<NegFlag>, BothFlags<[CoreOption]>>;
 defm force_emit_vtables : BoolFOption<"force-emit-vtables",
-  "CodeGenOpts.ForceEmitVTables", DefaultsToFalse,
+  CodeGenOpts<"ForceEmitVTables">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Emits more virtual tables to improve devirtualization">,
   ResetBy<NegFlag>, BothFlags<[CoreOption]>>;
 defm virtual_function_elimination : BoolFOption<"virtual-function-elimination",
-  "CodeGenOpts.VirtualFunctionElimination", DefaultsToFalse,
+  CodeGenOpts<"VirtualFunctionElimination">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Enables dead virtual function elimination optimization. Requires -flto=full">,
   ResetBy<NegFlag>, BothFlags<[CoreOption]>>;
 
 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">,
-  MarshallingInfoFlag<"LangOpts->WritableStrings">;
+  MarshallingInfoFlag<LangOpts<"WritableStrings">>;
 defm zero_initialized_in_bss : BoolFOption<"zero-initialized-in-bss",
-  "CodeGenOpts.NoZeroInitializedInBSS", DefaultsToFalse,
+  CodeGenOpts<"NoZeroInitializedInBSS">, DefaultsToFalse,
   ChangedBy<NegFlag, [], "Don't place zero initialized data in BSS">,
   ResetBy<PosFlag>>;
 defm function_sections : OptInFFlag<"function-sections", "Place each function in its own section">;
 def fbasic_block_sections_EQ : Joined<["-"], "fbasic-block-sections=">, Group<f_Group>,
   Flags<[CC1Option, CC1AsOption]>,
   HelpText<"Place each function's basic blocks in unique sections (ELF Only) : all | labels | none | list=<file>">,
   DocBrief<[{Generate labels for each basic block or place each basic block or a subset of basic blocks in its own section.}]>,
   Values<"all,labels,none,list=">,
-  MarshallingInfoString<"CodeGenOpts.BBSections", [{"none"}]>;
+  MarshallingInfoString<CodeGenOpts<"BBSections">, [{"none"}]>;
 defm data_sections : BoolFOption<"data-sections",
-  "CodeGenOpts.DataSections", DefaultsToFalse,
+  CodeGenOpts<"DataSections">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Place each data in its own section">, ResetBy<NegFlag>>;
 defm stack_size_section : BoolFOption<"stack-size-section",
-  "CodeGenOpts.StackSizeSection", DefaultsToFalse,
+  CodeGenOpts<"StackSizeSection">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Emit section containing metadata on function stack sizes">,
   ResetBy<NegFlag>>;
 
 defm unique_basic_block_section_names : BoolFOption<"unique-basic-block-section-names",
-  "CodeGenOpts.UniqueBasicBlockSectionNames", DefaultsToFalse,
+  CodeGenOpts<"UniqueBasicBlockSectionNames">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Use unique names for basic block sections (ELF Only)">,
   ResetBy<NegFlag>>;
 defm unique_internal_linkage_names : BoolFOption<"unique-internal-linkage-names",
-  "CodeGenOpts.UniqueInternalLinkageNames", DefaultsToFalse,
+  CodeGenOpts<"UniqueInternalLinkageNames">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Uniqueify Internal Linkage Symbol Names by appending"
             " the MD5 hash of the module path">,
   ResetBy<NegFlag>>;
 defm unique_section_names : BoolFOption<"unique-section-names",
-  "CodeGenOpts.UniqueSectionNames", DefaultsToTrue,
+  CodeGenOpts<"UniqueSectionNames">, DefaultsToTrue,
   ChangedBy<NegFlag, [], "Don't use unique names for text and data sections">,
   ResetBy<PosFlag>>;
 
 defm split_machine_functions: BoolFOption<"split-machine-functions",
-  "CodeGenOpts.SplitMachineFunctions", DefaultsToFalse,
+  CodeGenOpts<"SplitMachineFunctions">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Enable">, ResetBy<NegFlag, [], "Disable">,
   BothFlags<[], " late function splitting using profile information (x86 ELF)">>;
 
 defm strict_return : BoolFOption<"strict-return",
-  "CodeGenOpts.StrictReturn", DefaultsToTrue,
+  CodeGenOpts<"StrictReturn">, DefaultsToTrue,
   ChangedBy<NegFlag, [], "Don't treat control flow paths that fall off the end"
             " of a non-void function as unreachable">,
   ResetBy<PosFlag>>;
 
 def fenable_matrix : Flag<["-"], "fenable-matrix">, Group<f_Group>,
     Flags<[CC1Option]>,
     HelpText<"Enable matrix data type and related builtin functions">,
-    MarshallingInfoFlag<"LangOpts->MatrixTypes">;
+    MarshallingInfoFlag<LangOpts<"MatrixTypes">>;
 
 
 def fdebug_types_section: Flag <["-"], "fdebug-types-section">, Group<f_Group>,
   HelpText<"Place debug types in their own section (ELF Only)">;
 def fno_debug_types_section: Flag<["-"], "fno-debug-types-section">, Group<f_Group>;
 defm debug_ranges_base_address : BoolFOption<"debug-ranges-base-address",
-  "CodeGenOpts.DebugRangesBaseAddress", DefaultsToFalse,
+  CodeGenOpts<"DebugRangesBaseAddress">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Use DWARF base address selection entries in .debug_ranges">,
   ResetBy<NegFlag>>;
 defm split_dwarf_inlining : BoolFOption<"split-dwarf-inlining",
-  "CodeGenOpts.SplitDwarfInlining", DefaultsToTrue,
+  CodeGenOpts<"SplitDwarfInlining">, DefaultsToTrue,
   ChangedBy<NegFlag>,
   ResetBy<PosFlag, [], "Provide minimal debug info in the object/executable"
           " to facilitate online symbolication/stack traces in the absence of"
           " .dwo/.dwp files when using Split DWARF">>;
 def fdebug_default_version: Joined<["-"], "fdebug-default-version=">, Group<f_Group>,
   HelpText<"Default DWARF version to use, if a -g option caused DWARF debug info to be produced">;
 def fdebug_prefix_map_EQ
   : Joined<["-"], "fdebug-prefix-map=">, Group<f_Group>,
     Flags<[CC1Option,CC1AsOption]>,
     HelpText<"remap file source paths in debug info">;
 def ffile_prefix_map_EQ
   : Joined<["-"], "ffile-prefix-map=">, Group<f_Group>,
     HelpText<"remap file source paths in debug info and predefined preprocessor macros">;
 def fmacro_prefix_map_EQ
   : Joined<["-"], "fmacro-prefix-map=">, Group<Preprocessor_Group>, Flags<[CC1Option]>,
     HelpText<"remap file source paths in predefined preprocessor macros">;
 defm force_dwarf_frame : BoolFOption<"force-dwarf-frame",
-  "CodeGenOpts.ForceDwarfFrameSection", DefaultsToFalse,
+  CodeGenOpts<"ForceDwarfFrameSection">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Always emit a debug frame section">, ResetBy<NegFlag>>;
 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 gline_directives_only : Flag<["-"], "gline-directives-only">, Group<gN_Group>,
   Flags<[CoreOption]>, HelpText<"Emit debug line info directives only">;
 def gmlt : Flag<["-"], "gmlt">, Alias<gline_tables_only>;

 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 gdwarf64 : Flag<["-"], "gdwarf64">, Group<g_Group>, Flags<[CC1Option]>,
   HelpText<"Enables DWARF64 format for ELF binaries, if debug information emission is enabled.">,
-  MarshallingInfoFlag<"CodeGenOpts.Dwarf64">;
+  MarshallingInfoFlag<CodeGenOpts<"Dwarf64">>;
 def gdwarf32 : Flag<["-"], "gdwarf32">, Group<g_Group>, Flags<[CC1Option]>,
   HelpText<"Enables DWARF32 format for ELF binaries, if debug information emission is enabled.">;
 
 def gcodeview : Flag<["-"], "gcodeview">,
   HelpText<"Generate CodeView debug information">,
   Flags<[CC1Option, CC1AsOption, CoreOption]>,
-  MarshallingInfoFlag<"CodeGenOpts.EmitCodeView">;
+  MarshallingInfoFlag<CodeGenOpts<"EmitCodeView">>;
 defm codeview_ghash : BoolOption<"codeview-ghash",
-  "CodeGenOpts.CodeViewGHash", DefaultsToFalse,
+  CodeGenOpts<"CodeViewGHash">, DefaultsToFalse,
   ChangedBy<PosFlag, [CC1Option], "Emit type record hashes in a .debug$H section">,
   ResetBy<NegFlag>, BothFlags<[CoreOption]>, "g">;
 defm inline_line_tables : BoolGOption<"inline-line-tables",
-  "CodeGenOpts.NoInlineLineTables", DefaultsToFalse,
+  CodeGenOpts<"NoInlineLineTables">, DefaultsToFalse,
   ChangedBy<NegFlag, [], "Don't emit inline line tables.">,
   ResetBy<PosFlag>, BothFlags<[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_command_line : Flag<["-"], "grecord-command-line">,
   Group<g_flags_Group>;
 def gno_record_command_line : Flag<["-"], "gno-record-command-line">,
   Group<g_flags_Group>;
 def : Flag<["-"], "grecord-gcc-switches">, Alias<grecord_command_line>;
 def : Flag<["-"], "gno-record-gcc-switches">, Alias<gno_record_command_line>;
 def gstrict_dwarf : Flag<["-"], "gstrict-dwarf">, Group<g_flags_Group>;
 def gno_strict_dwarf : Flag<["-"], "gno-strict-dwarf">, Group<g_flags_Group>;
 defm column_info : BoolCC1Option<"column-info",
-  "CodeGenOpts.DebugColumnInfo", DefaultsToTrue,
+  CodeGenOpts<"DebugColumnInfo">, DefaultsToTrue,
   ChangedBy<NegFlag>, ResetBy<PosFlag>, BothFlags<[CoreOption]>, "g">,
   Group<g_flags_Group>;
 def gsplit_dwarf : Flag<["-"], "gsplit-dwarf">, Group<g_flags_Group>;
 def gsplit_dwarf_EQ : Joined<["-"], "gsplit-dwarf=">, Group<g_flags_Group>,
   HelpText<"Set DWARF fission mode to either 'split' or 'single'">,
   Values<"split,single">;
 def gno_split_dwarf : Flag<["-"], "gno-split-dwarf">, Group<g_flags_Group>;
 def ggnu_pubnames : Flag<["-"], "ggnu-pubnames">, Group<g_flags_Group>, Flags<[CC1Option]>;
 def gno_gnu_pubnames : Flag<["-"], "gno-gnu-pubnames">, Group<g_flags_Group>;
 def gpubnames : Flag<["-"], "gpubnames">, Group<g_flags_Group>, Flags<[CC1Option]>;
 def gno_pubnames : Flag<["-"], "gno-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 gz_EQ : Joined<["-"], "gz=">, Group<g_flags_Group>,
     HelpText<"DWARF debug sections compression type">;
 def gz : Flag<["-"], "gz">, Alias<gz_EQ>, AliasArgs<["zlib"]>, Group<g_flags_Group>;
 def gembed_source : Flag<["-"], "gembed-source">, Group<g_flags_Group>, Flags<[CC1Option]>,
     HelpText<"Embed source text in DWARF debug sections">,
-    MarshallingInfoFlag<"CodeGenOpts.EmbedSource">;
+    MarshallingInfoFlag<CodeGenOpts<"EmbedSource">>;
 def gno_embed_source : Flag<["-"], "gno-embed-source">, Group<g_flags_Group>,
     Flags<[NoXarchOption]>,
     HelpText<"Restore the default behavior of not embedding source text in DWARF debug sections">;
 def headerpad__max__install__names : Joined<["-"], "headerpad_max_install_names">;
 def help : Flag<["-", "--"], "help">, Flags<[CC1Option,CC1AsOption, FC1Option,
     FlangOption]>, HelpText<"Display available options">,
-    MarshallingInfoFlag<"FrontendOpts.ShowHelp">;
+    MarshallingInfoFlag<FrontendOpts<"ShowHelp">>;
 def ibuiltininc : Flag<["-"], "ibuiltininc">,
   HelpText<"Enable builtin #include directories even when -nostdinc is used "
            "before or after -ibuiltininc. "
            "Using -nobuiltininc after the option disables it">;
 def index_header_map : Flag<["-"], "index-header-map">, Flags<[CC1Option]>,
   HelpText<"Make the next included directory (-I or -F) an indexer header map">;
 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>">,
-  MarshallingInfoStringVector<"PreprocessorOpts->MacroIncludes">;
+  MarshallingInfoStringVector<PreprocessorOpts<"MacroIncludes">>;
 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>">,
-  MarshallingInfoString<"PreprocessorOpts->ImplicitPCHInclude">;
+  MarshallingInfoString<PreprocessorOpts<"ImplicitPCHInclude">>;
 def relocatable_pch : Flag<["-", "--"], "relocatable-pch">, Flags<[CC1Option]>,
   HelpText<"Whether to build a relocatable precompiled header">,
-  MarshallingInfoFlag<"FrontendOpts.RelocatablePCH">;
+  MarshallingInfoFlag<FrontendOpts<"RelocatablePCH">>;
 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>">,
-  MarshallingInfoString<"HeaderSearchOpts->Sysroot", [{"/"}]>;
+  MarshallingInfoString<HeaderSearchOpts<"Sysroot">, [{"/"}]>;
 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<[NoXarchOption]>, 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>">,

 def mlittle_endian : Flag<["-"], "mlittle-endian">, Flags<[NoXarchOption]>;
 def EL : Flag<["-"], "EL">, Alias<mlittle_endian>;
 def mbig_endian : Flag<["-"], "mbig-endian">, Flags<[NoXarchOption]>;
 def EB : Flag<["-"], "EB">, Alias<mbig_endian>;
 def m16 : Flag<["-"], "m16">, Group<m_Group>, Flags<[NoXarchOption, CoreOption]>;
 def m32 : Flag<["-"], "m32">, Group<m_Group>, Flags<[NoXarchOption, CoreOption]>;
 def mqdsp6_compat : Flag<["-"], "mqdsp6-compat">, Group<m_Group>, Flags<[NoXarchOption,CC1Option]>,
   HelpText<"Enable hexagon-qdsp6 backward compatibility">,
-  MarshallingInfoFlag<"LangOpts->HexagonQdsp6Compat">;
+  MarshallingInfoFlag<LangOpts<"HexagonQdsp6Compat">>;
 def m64 : Flag<["-"], "m64">, Group<m_Group>, Flags<[NoXarchOption, CoreOption]>;
 def mx32 : Flag<["-"], "mx32">, Group<m_Group>, Flags<[NoXarchOption, CoreOption]>;
 def mabi_EQ : Joined<["-"], "mabi=">, Group<m_Group>;
 def miamcu : Flag<["-"], "miamcu">, Group<m_Group>, Flags<[NoXarchOption, CoreOption]>,
   HelpText<"Use Intel MCU ABI">;
 def mno_iamcu : Flag<["-"], "mno-iamcu">, Group<m_Group>, Flags<[NoXarchOption, 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 malign_branch_EQ : CommaJoined<["-"], "malign-branch=">, Group<m_Group>, Flags<[NoXarchOption]>,
   HelpText<"Specify types of branches to align">;
 def malign_branch_boundary_EQ : Joined<["-"], "malign-branch-boundary=">, Group<m_Group>, Flags<[NoXarchOption]>,
   HelpText<"Specify the boundary's size to align branches">;
 def mpad_max_prefix_size_EQ : Joined<["-"], "mpad-max-prefix-size=">, Group<m_Group>, Flags<[NoXarchOption]>,
   HelpText<"Specify maximum number of prefixes to use for padding">;
 def mbranches_within_32B_boundaries : Flag<["-"], "mbranches-within-32B-boundaries">, Flags<[NoXarchOption]>, Group<m_Group>,
   HelpText<"Align selected branches (fused, jcc, jmp) within 32-byte boundary">;
 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 mdouble_EQ : Joined<["-"], "mdouble=">, Group<m_Group>, Values<"32,64">, Flags<[CC1Option]>,
   HelpText<"Force double to be 32 bits or 64 bits">,
-  MarshallingInfoStringInt<"LangOpts->DoubleSize", "0">;
+  MarshallingInfoStringInt<LangOpts<"DoubleSize">, "0">;
 def LongDouble_Group : OptionGroup<"<LongDouble group>">, Group<m_Group>,
   DocName<"Long double flags">,
   DocBrief<[{Selects the long double implementation}]>;
 def mlong_double_64 : Flag<["-"], "mlong-double-64">, Group<LongDouble_Group>, Flags<[CC1Option]>,
   HelpText<"Force long double to be 64 bits">;
 def mlong_double_80 : Flag<["-"], "mlong-double-80">, Group<LongDouble_Group>, Flags<[CC1Option]>,
   HelpText<"Force long double to be 80 bits, padded to 128 bits for storage">;
 def mlong_double_128 : Flag<["-"], "mlong-double-128">, Group<LongDouble_Group>, Flags<[CC1Option]>,

 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>, Flags<[CoreOption]>;
 def masm_EQ : Joined<["-"], "masm=">, Group<m_Group>, Flags<[NoXarchOption]>;
 def mcmodel_EQ : Joined<["-"], "mcmodel=">, Group<m_Group>, Flags<[CC1Option]>,
-  MarshallingInfoString<"TargetOpts->CodeModel", [{"default"}]>;
+  MarshallingInfoString<TargetOpts<"CodeModel">, [{"default"}]>;
 def mtls_size_EQ : Joined<["-"], "mtls-size=">, Group<m_Group>, Flags<[NoXarchOption, CC1Option]>,
   HelpText<"Specify bit size of immediate TLS offsets (AArch64 ELF only): "
            "12 (for 4KB) | 24 (for 16MB, default) | 32 (for 4GB) | 48 (for 256TB, needs -mcmodel=large)">,
-  MarshallingInfoStringInt<"CodeGenOpts.TLSSize">;
+  MarshallingInfoStringInt<CodeGenOpts<"TLSSize">>;
 def mimplicit_it_EQ : Joined<["-"], "mimplicit-it=">, Group<m_Group>;
 def mdefault_build_attributes : Joined<["-"], "mdefault-build-attributes">, Group<m_Group>;
 def mno_default_build_attributes : Joined<["-"], "mno-default-build-attributes">, Group<m_Group>;
 def mconstant_cfstrings : Flag<["-"], "mconstant-cfstrings">, Group<clang_ignored_m_Group>;
 def mconsole : Joined<["-"], "mconsole">, Group<m_Group>, Flags<[NoXarchOption]>;
 def mwindows : Joined<["-"], "mwindows">, Group<m_Group>, Flags<[NoXarchOption]>;
 def mdll : Joined<["-"], "mdll">, Group<m_Group>, Flags<[NoXarchOption]>;
 def municode : Joined<["-"], "municode">, Group<m_Group>, Flags<[NoXarchOption]>;
 def mthreads : Joined<["-"], "mthreads">, Group<m_Group>, Flags<[NoXarchOption]>;
 def mcpu_EQ : Joined<["-"], "mcpu=">, Group<m_Group>;
 def mmcu_EQ : Joined<["-"], "mmcu=">, Group<m_Group>;
 def msim : Flag<["-"], "msim">, 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)">,
-  MarshallingInfoFlag<"LangOpts->AlignDouble">;
+  MarshallingInfoFlag<LangOpts<"AlignDouble">>;
 def mfloat_abi_EQ : Joined<["-"], "mfloat-abi=">, Group<m_Group>, Values<"soft,softfp,hard">;
 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 mhwmult_EQ : Joined<["-"], "mhwmult=">, 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<[NoXarchOption]>;
 def mllvm : Separate<["-"], "mllvm">, Flags<[CC1Option,CC1AsOption,CoreOption]>,
   HelpText<"Additional arguments to forward to LLVM's option processing">,
-  MarshallingInfoStringVector<"FrontendOpts.LLVMArgs">;
+  MarshallingInfoStringVector<FrontendOpts<"LLVMArgs">>;
 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">,
-  MarshallingInfoFlag<"LangOpts->MSBitfields">;
+  MarshallingInfoFlag<LangOpts<"MSBitfields">>;
 def moutline : Flag<["-"], "moutline">, Group<f_clang_Group>, Flags<[CC1Option]>,
     HelpText<"Enable function outlining (AArch64 only)">;
 def mno_outline : Flag<["-"], "mno-outline">, Group<f_clang_Group>, Flags<[CC1Option]>,
     HelpText<"Disable function outlining (AArch64 only)">;
 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">,
-  MarshallingInfoFlag<"CodeGenOpts.StackRealignment">;
+  MarshallingInfoFlag<CodeGenOpts<"StackRealignment">>;
 def mstack_alignment : Joined<["-"], "mstack-alignment=">, Group<m_Group>, Flags<[CC1Option]>,
   HelpText<"Set the stack alignment">,
-  MarshallingInfoStringInt<"CodeGenOpts.StackAlignment">;
+  MarshallingInfoStringInt<CodeGenOpts<"StackAlignment">>;
 def mstack_probe_size : Joined<["-"], "mstack-probe-size=">, Group<m_Group>, Flags<[CC1Option]>,
   HelpText<"Set the stack probe size">,
-  MarshallingInfoStringInt<"CodeGenOpts.StackProbeSize", "4096">;
+  MarshallingInfoStringInt<CodeGenOpts<"StackProbeSize">, "4096">;
 def mstack_arg_probe : Flag<["-"], "mstack-arg-probe">, Group<m_Group>,
   HelpText<"Enable stack probes">;
 def mno_stack_arg_probe : Flag<["-"], "mno-stack-arg-probe">, Group<m_Group>, Flags<[CC1Option]>,
   HelpText<"Disable stack probes which are enabled by default">,
-  MarshallingInfoFlag<"CodeGenOpts.NoStackArgProbe">;
+  MarshallingInfoFlag<CodeGenOpts<"NoStackArgProbe">>;
 def mthread_model : Separate<["-"], "mthread-model">, Group<m_Group>, Flags<[CC1Option]>,
   HelpText<"The thread model to use, e.g. posix, single (posix by default)">, Values<"posix,single">;
 def meabi : Separate<["-"], "meabi">, Group<m_Group>, Flags<[CC1Option]>,
   HelpText<"Set EABI type, e.g. 4, 5 or gnu (default depends on triple)">, Values<"default,4,5,gnu">,
-  MarshallingInfoString<"TargetOpts->EABIVersion", "Default">,
+  MarshallingInfoString<TargetOpts<"EABIVersion">, "Default">,
   NormalizedValuesScope<"llvm::EABI">,
   NormalizedValues<["Default", "EABI4", "EABI5", "GNU"]>, AutoNormalizeEnum;
 
 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_pascal_strings : Flag<["-"], "mno-pascal-strings">,
   Alias<fno_pascal_strings>;
 def mno_red_zone : Flag<["-"], "mno-red-zone">, Group<m_Group>;
 def mno_tls_direct_seg_refs : Flag<["-"], "mno-tls-direct-seg-refs">, Group<m_Group>, Flags<[CC1Option]>,
   HelpText<"Disable direct TLS access through segment registers">,
-  MarshallingInfoFlag<"CodeGenOpts.IndirectTlsSegRefs">;
+  MarshallingInfoFlag<CodeGenOpts<"IndirectTlsSegRefs">>;
 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 mretpoline : Flag<["-"], "mretpoline">, Group<m_Group>, Flags<[CoreOption,NoXarchOption]>;
 def mno_retpoline : Flag<["-"], "mno-retpoline">, Group<m_Group>, Flags<[CoreOption,NoXarchOption]>;
 defm speculative_load_hardening : BoolOption<"speculative-load-hardening",
-  "CodeGenOpts.SpeculativeLoadHardening", DefaultsToFalse,
+  CodeGenOpts<"SpeculativeLoadHardening">, DefaultsToFalse,
   ChangedBy<PosFlag, [CC1Option]>, ResetBy<NegFlag>, BothFlags<[CoreOption]>,
   "m">, Group<m_Group>;
 def mlvi_hardening : Flag<["-"], "mlvi-hardening">, Group<m_Group>, Flags<[CoreOption,NoXarchOption]>,
   HelpText<"Enable all mitigations for Load Value Injection (LVI)">;
 def mno_lvi_hardening : Flag<["-"], "mno-lvi-hardening">, Group<m_Group>, Flags<[CoreOption,NoXarchOption]>,
   HelpText<"Disable mitigations for Load Value Injection (LVI)">;
 def mlvi_cfi : Flag<["-"], "mlvi-cfi">, Group<m_Group>, Flags<[CoreOption,NoXarchOption]>,
   HelpText<"Enable only control-flow mitigations for Load Value Injection (LVI)">;
def mcrc : Flag<["-"], "mcrc">, Group<m_Group>,
   HelpText<"Allow use of CRC instructions (ARM/Mips only)">;
 def mnocrc : Flag<["-"], "mnocrc">, Group<m_arm_Features_Group>,
   HelpText<"Disallow use of CRC instructions (ARM only)">;
 def mno_neg_immediates: Flag<["-"], "mno-neg-immediates">, Group<m_arm_Features_Group>,
   HelpText<"Disallow converting instructions with negative immediates to their negation or inversion.">;
 def mcmse : Flag<["-"], "mcmse">, Group<m_arm_Features_Group>,
   Flags<[NoXarchOption,CC1Option]>,
   HelpText<"Allow use of CMSE (Armv8-M Security Extensions)">,
-  MarshallingInfoFlag<"LangOpts->Cmse">;
+  MarshallingInfoFlag<LangOpts<"Cmse">>;
 def ForceAAPCSBitfieldLoad : Flag<["-"], "faapcs-bitfield-load">, Group<m_arm_Features_Group>,
   Flags<[NoXarchOption,CC1Option]>,
   HelpText<"Follows the AAPCS standard that all volatile bit-field write generates at least one load. (ARM only).">,
-  MarshallingInfoFlag<"CodeGenOpts.ForceAAPCSBitfieldLoad">;
+  MarshallingInfoFlag<CodeGenOpts<"ForceAAPCSBitfieldLoad">>;
 defm aapcs_bitfield_width : BoolOption<"aapcs-bitfield-width",
-  "CodeGenOpts.AAPCSBitfieldWidth", DefaultsToTrue,
+  CodeGenOpts<"AAPCSBitfieldWidth">, DefaultsToTrue,
   ChangedBy<NegFlag, [], "Do not follow">, ResetBy<PosFlag, [], "Follow">,
   BothFlags<[NoXarchOption, CC1Option], " the AAPCS standard requirement stating that"
             " volatile bit-field width is dictated by the field container type. (ARM only).">,
   "f">, Group<m_arm_Features_Group>;
 
 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">,

 def msvr4_struct_return : Flag<["-"], "msvr4-struct-return">,
   Group<m_Group>, Flags<[CC1Option]>,
   HelpText<"Return small structs in registers (PPC32 only)">;
 
 def mvx : Flag<["-"], "mvx">, Group<m_Group>;
 def mno_vx : Flag<["-"], "mno-vx">, Group<m_Group>;
 
 defm zvector : BoolFOption<"zvector",
-  "LangOpts->ZVector", DefaultsToFalse,
+  LangOpts<"ZVector">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Enable System z vector language extension">,
   ResetBy<NegFlag>>;
 def mzvector : Flag<["-"], "mzvector">, Alias<fzvector>;
 def mno_zvector : Flag<["-"], "mno-zvector">, Alias<fno_zvector>;
 
 def mignore_xcoff_visibility : Flag<["-"], "mignore-xcoff-visibility">, Group<m_Group>,
 HelpText<"Not emit the visibility attribute for asm in AIX OS or give all symbols 'unspecified' visibility in XCOFF object file">,
   Flags<[CC1Option]>;
 defm backchain : BoolOption<"backchain",
-  "CodeGenOpts.Backchain", DefaultsToFalse,
+  CodeGenOpts<"Backchain">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Link stack frames through backchain on System Z">,
   ResetBy<NegFlag>, BothFlags<[NoXarchOption,CC1Option]>, "m">, Group<m_Group>;
 
 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">;
 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 mtls_direct_seg_refs : Flag<["-"], "mtls-direct-seg-refs">, Group<m_Group>,
   HelpText<"Enable direct TLS access through segment registers (default)">;
 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">,
-  MarshallingInfoFlag<"CodeGenOpts.RelaxAll">;
+  MarshallingInfoFlag<CodeGenOpts<"RelaxAll">>;
 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">,
-  MarshallingInfoFlag<"CodeGenOpts.IncrementalLinkerCompatible">;
+  MarshallingInfoFlag<CodeGenOpts<"IncrementalLinkerCompatible">>;
 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>, Alias<G>;
 def msoft_float : Flag<["-"], "msoft-float">, Group<m_Group>, Flags<[CC1Option]>,
   HelpText<"Use software floating point">,
-  MarshallingInfoFlag<"CodeGenOpts.SoftFloat">;
+  MarshallingInfoFlag<CodeGenOpts<"SoftFloat">>;
 def moutline_atomics : Flag<["-"], "moutline-atomics">, Group<f_clang_Group>, Flags<[CC1Option]>,
   HelpText<"Generate local calls to out-of-line atomic operations">;
 def mno_outline_atomics : Flag<["-"], "mno-outline-atomics">, Group<f_clang_Group>, Flags<[CC1Option]>,
   HelpText<"Don't generate local calls to out-of-line atomic operations">;
 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]>,
-  MarshallingInfoStringVector<"CodeGenOpts.Reciprocals">;
+  MarshallingInfoStringVector<CodeGenOpts<"Reciprocals">>;
 def mprefer_vector_width_EQ : Joined<["-"], "mprefer-vector-width=">, Group<m_Group>, Flags<[CC1Option]>,
   HelpText<"Specifies preferred vector width for auto-vectorization. Defaults to 'none' which allows target specific decisions.">,
-  MarshallingInfoString<"CodeGenOpts.PreferVectorWidth">;
+  MarshallingInfoString<CodeGenOpts<"PreferVectorWidth">>;
 def mstack_protector_guard_EQ : Joined<["-"], "mstack-protector-guard=">, Group<m_Group>, Flags<[CC1Option]>,
   HelpText<"Use the given guard (global, tls) for addressing the stack-protector guard">,
-  MarshallingInfoString<"CodeGenOpts.StackProtectorGuard">;
+  MarshallingInfoString<CodeGenOpts<"StackProtectorGuard">>;
 def mstack_protector_guard_offset_EQ : Joined<["-"], "mstack-protector-guard-offset=">, Group<m_Group>, Flags<[CC1Option]>,
   HelpText<"Use the given offset for addressing the stack-protector guard">,
-  MarshallingInfoStringInt<"CodeGenOpts.StackProtectorGuardOffset", "(unsigned)-1">;
+  MarshallingInfoStringInt<CodeGenOpts<"StackProtectorGuardOffset">, "(unsigned)-1">;
 def mstack_protector_guard_reg_EQ : Joined<["-"], "mstack-protector-guard-reg=">, Group<m_Group>, Flags<[CC1Option]>,
   HelpText<"Use the given reg for addressing the stack-protector guard">,
-  MarshallingInfoString<"CodeGenOpts.StackProtectorGuardReg", [{"none"}]>;
+  MarshallingInfoString<CodeGenOpts<"StackProtectorGuardReg">, [{"none"}]>;
 def mpie_copy_relocations : Flag<["-"], "mpie-copy-relocations">,
   Alias<fdirect_access_external_data>, Group<m_Group>;
 def mno_pie_copy_relocations : Flag<["-"], "mno-pie-copy-relocations">,
   Alias<fno_direct_access_external_data>, Group<m_Group>;
 def mfentry : Flag<["-"], "mfentry">, HelpText<"Insert calls to fentry at function entry (x86/SystemZ only)">,
   Flags<[CC1Option]>, Group<m_Group>,
-  MarshallingInfoFlag<"CodeGenOpts.CallFEntry">;
+  MarshallingInfoFlag<CodeGenOpts<"CallFEntry">>;
 def mnop_mcount : Flag<["-"], "mnop-mcount">, HelpText<"Generate mcount/__fentry__ calls as nops. To activate they need to be patched in.">,
   Flags<[CC1Option]>, Group<m_Group>,
-  MarshallingInfoFlag<"CodeGenOpts.MNopMCount">;
+  MarshallingInfoFlag<CodeGenOpts<"MNopMCount">>;
 def mrecord_mcount : Flag<["-"], "mrecord-mcount">, HelpText<"Generate a __mcount_loc section entry for each __fentry__ call.">,
   Flags<[CC1Option]>, Group<m_Group>,
-  MarshallingInfoFlag<"CodeGenOpts.RecordMCount">;
+  MarshallingInfoFlag<CodeGenOpts<"RecordMCount">>;
 def mpacked_stack : Flag<["-"], "mpacked-stack">, HelpText<"Use packed stack layout (SystemZ only).">,
   Flags<[CC1Option]>, Group<m_Group>,
-  MarshallingInfoFlag<"CodeGenOpts.PackedStack">;
+  MarshallingInfoFlag<CodeGenOpts<"PackedStack">>;
 def mno_packed_stack : Flag<["-"], "mno-packed-stack">, Flags<[CC1Option]>, Group<m_Group>;
 def mips16 : Flag<["-"], "mips16">, Group<m_mips_Features_Group>;
 def mno_mips16 : Flag<["-"], "mno-mips16">, Group<m_mips_Features_Group>;
 def mmicromips : Flag<["-"], "mmicromips">, Group<m_mips_Features_Group>;
 def mno_micromips : Flag<["-"], "mno-micromips">, Group<m_mips_Features_Group>;
 def mxgot : Flag<["-"], "mxgot">, Group<m_mips_Features_Group>;
 def mno_xgot : Flag<["-"], "mno-xgot">, Group<m_mips_Features_Group>;
 def mldc1_sdc1 : Flag<["-"], "mldc1-sdc1">, Group<m_mips_Features_Group>;

 def no_canonical_prefixes : Flag<["-"], "no-canonical-prefixes">, Flags<[HelpHidden, CoreOption]>,
   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<[NoXarchOption]>;
 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, CoreOption]>,
   HelpText<"Disable builtin #include directories">,
-  MarshallingInfoNegativeFlag<"HeaderSearchOpts->UseBuiltinIncludes">;
+  MarshallingInfoNegativeFlag<HeaderSearchOpts<"UseBuiltinIncludes">>;
 def nogpuinc : Flag<["-"], "nogpuinc">, HelpText<"Do not add include paths for CUDA/HIP and"
   " do not include the default CUDA/HIP wrapper headers">;
 def : Flag<["-"], "nocudainc">, Alias<nogpuinc>;
 def nogpulib : Flag<["-"], "nogpulib">,
   HelpText<"Do not link device library for CUDA/HIP device compilation">;
 def : Flag<["-"], "nocudalib">, Alias<nogpulib>;
 def nodefaultlibs : Flag<["-"], "nodefaultlibs">;
 def nofixprebinding : Flag<["-"], "nofixprebinding">;
 def nolibc : Flag<["-"], "nolibc">;
 def nomultidefs : Flag<["-"], "nomultidefs">;
 def nopie : Flag<["-"], "nopie">;
 def no_pie : Flag<["-"], "no-pie">, Alias<nopie>;
 def noprebind : Flag<["-"], "noprebind">;
 def noprofilelib : Flag<["-"], "noprofilelib">;
 def noseglinkedit : Flag<["-"], "noseglinkedit">;
 def nostartfiles : Flag<["-"], "nostartfiles">, Group<Link_Group>;
 def nostdinc : Flag<["-"], "nostdinc">, Flags<[CoreOption]>;
 def nostdlibinc : Flag<["-"], "nostdlibinc">;
 def nostdincxx : Flag<["-"], "nostdinc++">, Flags<[CC1Option]>,
   HelpText<"Disable standard #include directories for the C++ standard library">,
-  MarshallingInfoNegativeFlag<"HeaderSearchOpts->UseStandardCXXIncludes">;
+  MarshallingInfoNegativeFlag<HeaderSearchOpts<"UseStandardCXXIncludes">>;
 def nostdlib : Flag<["-"], "nostdlib">, Group<Link_Group>;
 def nostdlibxx : Flag<["-"], "nostdlib++">;
 def object : Flag<["-"], "object">;
 def o : JoinedOrSeparate<["-"], "o">, Flags<[NoXarchOption, RenderAsInput,
   CC1Option, CC1AsOption, FC1Option, FlangOption]>,
   HelpText<"Write output to <file>">, MetaVarName<"<file>">,
-  MarshallingInfoString<"FrontendOpts.OutputFile">;
+  MarshallingInfoString<FrontendOpts<"OutputFile">>;
 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]>,
-  MarshallingInfoFlag<"PedanticErrors">, IsDiag;
+  MarshallingInfoFlag<DiagnosticOpts<"PedanticErrors">>;
 def pedantic : Flag<["-", "--"], "pedantic">, Group<pedantic_Group>, Flags<[CC1Option]>,
-  MarshallingInfoFlag<"Pedantic">, IsDiag;
+  MarshallingInfoFlag<DiagnosticOpts<"Pedantic">>;
 def pg : Flag<["-"], "pg">, HelpText<"Enable mcount instrumentation">, Flags<[CC1Option]>,
-  MarshallingInfoFlag<"CodeGenOpts.InstrumentForProfiling">;
+  MarshallingInfoFlag<CodeGenOpts<"InstrumentForProfiling">>;
 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">,
-  MarshallingInfoFlag<"LangOpts->ObjCGCBitmapPrint">;
+  MarshallingInfoFlag<LangOpts<"ObjCGCBitmapPrint">>;
 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_target_triple : Flag<["-", "--"], "print-target-triple">,
   HelpText<"Print the normalized target triple">;
 def print_effective_triple : Flag<["-", "--"], "print-effective-triple">,
   HelpText<"Print the effective target triple">;
 def print_prog_name_EQ : Joined<["-", "--"], "print-prog-name=">,
   HelpText<"Print the full program path of <name>">, MetaVarName<"<name>">;
 def print_resource_dir : Flag<["-", "--"], "print-resource-dir">,
   HelpText<"Print the resource directory pathname">;
 def print_search_dirs : Flag<["-", "--"], "print-search-dirs">,
   HelpText<"Print the paths used for finding libraries and programs">;
 def print_targets : Flag<["-", "--"], "print-targets">,
   HelpText<"Print the registered targets">;
 def private__bundle : Flag<["-"], "private_bundle">;
 def pthreads : Flag<["-"], "pthreads">;
 defm pthread : BoolOption<"pthread",
-  "LangOpts->POSIXThreads", DefaultsToFalse,
+  LangOpts<"POSIXThreads">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Support POSIX threads in generated code">,
   ResetBy<NegFlag>, BothFlags<[CC1Option]>>;
 def p : Flag<["-"], "p">;
 def pie : Flag<["-"], "pie">, Group<Link_Group>;
 def static_pie : Flag<["-"], "static-pie">, Group<Link_Group>;
 def read__only__relocs : Separate<["-"], "read_only_relocs">;
 def remap : Flag<["-"], "remap">;
 def rewrite_objc : Flag<["-"], "rewrite-objc">, Flags<[NoXarchOption,CC1Option]>,
   HelpText<"Rewrite Objective-C source to C++">, Group<Action_Group>;
 def rewrite_legacy_objc : Flag<["-"], "rewrite-legacy-objc">, Flags<[NoXarchOption]>,
   HelpText<"Rewrite Legacy Objective-C source to C++">;
 def rdynamic : Flag<["-"], "rdynamic">, Group<Link_Group>;
 def resource_dir : Separate<["-"], "resource-dir">,
   Flags<[NoXarchOption, CC1Option, CoreOption, HelpHidden]>,
   HelpText<"The directory which holds the compiler resource files">,
-  MarshallingInfoString<"HeaderSearchOpts->ResourceDir">;
+  MarshallingInfoString<HeaderSearchOpts<"ResourceDir">>;
 def resource_dir_EQ : Joined<["-"], "resource-dir=">, Flags<[NoXarchOption, CoreOption]>,
   Alias<resource_dir>;
 def rpath : Separate<["-"], "rpath">, Flags<[LinkerInput]>, Group<Link_Group>;
 def rtlib_EQ : Joined<["-", "--"], "rtlib=">,
   HelpText<"Compiler runtime library to use">;
 def frtlib_add_rpath: Flag<["-"], "frtlib-add-rpath">, Flags<[NoArgumentUnused]>,
   HelpText<"Add -rpath with architecture-specific resource directory to the linker flags">;
 def fno_rtlib_add_rpath: Flag<["-"], "fno-rtlib-add-rpath">, Flags<[NoArgumentUnused]>,

 def : Separate<["--"], "no-system-header-prefix">, Alias<no_system_header_prefix>;
 def s : Flag<["-"], "s">, Group<Link_Group>;
 def target : Joined<["--"], "target=">, Flags<[NoXarchOption, CoreOption]>,
   HelpText<"Generate code for the given target">;
 def print_supported_cpus : Flag<["-", "--"], "print-supported-cpus">,
   Group<CompileOnly_Group>, Flags<[CC1Option, CoreOption]>,
   HelpText<"Print supported cpu models for the given target (if target is not specified,"
            " it will print the supported cpus for the default target)">,
-  MarshallingInfoFlag<"FrontendOpts.PrintSupportedCPUs">;
+  MarshallingInfoFlag<FrontendOpts<"PrintSupportedCPUs">>;
 def mcpu_EQ_QUESTION : Flag<["-"], "mcpu=?">, Alias<print_supported_cpus>;
 def mtune_EQ_QUESTION : Flag<["-"], "mtune=?">, Alias<print_supported_cpus>;
 def gcc_toolchain : Joined<["--"], "gcc-toolchain=">, Flags<[NoXarchOption]>,
   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">,
-  MarshallingInfoFlag<"LangOpts->TraditionalCPP">;
+  MarshallingInfoFlag<LangOpts<"TraditionalCPP">>;
 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">, Group<Link_Group>;
 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">,
-  MarshallingInfoNegativeFlag<"PreprocessorOpts->UsePredefines">;
+  MarshallingInfoNegativeFlag<PreprocessorOpts<"UsePredefines">>;
 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">,
-  MarshallingInfoFlag<"HeaderSearchOpts->Verbose">;
+  MarshallingInfoFlag<HeaderSearchOpts<"Verbose">>;
 def verify_debug_info : Flag<["--"], "verify-debug-info">, Flags<[NoXarchOption]>,
   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]>,
-  MarshallingInfoFlag<"IgnoreWarnings">, IsDiag;
+  MarshallingInfoFlag<DiagnosticOpts<"IgnoreWarnings">>;
 def x : JoinedOrSeparate<["-"], "x">, Flags<[NoXarchOption,CC1Option]>,
   HelpText<"Treat subsequent input files as having type <language>">,
   MetaVarName<"<language>">;
 def y : Joined<["-"], "y">;
 
 defm integrated_as : BoolFOption<"integrated-as",
-  "CodeGenOpts.DisableIntegratedAS", DefaultsToFalse,
+  CodeGenOpts<"DisableIntegratedAS">, DefaultsToFalse,
   ChangedBy<NegFlag, [], "Disable">, ResetBy<PosFlag, [], "Enable">,
   BothFlags<[], " the integrated assembler">>;
 
 def fintegrated_cc1 : Flag<["-"], "fintegrated-cc1">,
                       Flags<[CoreOption, NoXarchOption]>, Group<f_Group>,
                       HelpText<"Run cc1 in-process">;
 def fno_integrated_cc1 : Flag<["-"], "fno-integrated-cc1">,
                          Flags<[CoreOption, NoXarchOption]>, Group<f_Group>,
                          HelpText<"Spawn a separate process for each cc1">;
 
 def : Flag<["-"], "integrated-as">, Alias<fintegrated_as>, Flags<[NoXarchOption]>;
 def : Flag<["-"], "no-integrated-as">, Alias<fno_integrated_as>,
       Flags<[CC1Option, NoXarchOption]>;
 
 def working_directory : JoinedOrSeparate<["-"], "working-directory">, Flags<[CC1Option]>,
   HelpText<"Resolve file paths relative to the specified directory">,
-  MarshallingInfoString<"FileSystemOpts.WorkingDir">;
+  MarshallingInfoString<FileSystemOpts<"WorkingDir">>;
 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 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 semantic_interposition : BoolFOption<"semantic-interposition",
-  "LangOpts->SemanticInterposition", DefaultsToFalse,
+  LangOpts<"SemanticInterposition">, DefaultsToFalse,
   ChangedBy<PosFlag>, ResetBy<NegFlag>>;
 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 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>;
 
 // C++ SYCL options
 defm sycl : BoolOption<"sycl",
-  "LangOpts->SYCL", DefaultsToFalse,
+  LangOpts<"SYCL">, DefaultsToFalse,
   ChangedBy<PosFlag, [CC1Option], "Enable">, ResetBy<NegFlag, [], "Disable">,
   BothFlags<[CoreOption], " SYCL kernels compilation for device">, "f">,
   Group<sycl_Group>;
 def sycl_std_EQ : Joined<["-"], "sycl-std=">, Group<sycl_Group>, Flags<[CC1Option, NoArgumentUnused, CoreOption]>,
   HelpText<"SYCL language standard to compile for.">, Values<"2017,121,1.2.1,sycl-1.2.1">,
   NormalizedValues<["SYCL_2017", "SYCL_2017", "SYCL_2017", "SYCL_2017"]>, NormalizedValuesScope<"LangOptions">,
-  MarshallingInfoString<"LangOpts->SYCLVersion", "SYCL_None">, ShouldParseIf<fsycl.KeyPath>, AutoNormalizeEnum;
+  MarshallingInfoString<LangOpts<"SYCLVersion">, "SYCL_None">, ShouldParseIf<fsycl.KeyPath>, AutoNormalizeEnum;
 
 //===----------------------------------------------------------------------===//
 // FlangOption and FC1 Options
 //===----------------------------------------------------------------------===//
 def test_io : Flag<["-"], "test-io">, Flags<[HelpHidden, FlangOption, FC1Option, FlangOnlyOption]>, Group<Action_Group>,
   HelpText<"Run the InputOuputTest action. Use for development and testing only.">;
 
 //===----------------------------------------------------------------------===//
 // CC1 Options
 //===----------------------------------------------------------------------===//
 
 let Flags = [CC1Option, NoDriverOption] in {
 
 //===----------------------------------------------------------------------===//
 // Target Options
 //===----------------------------------------------------------------------===//
 
 let Flags = [CC1Option, CC1AsOption, NoDriverOption] in {
 
 def target_cpu : Separate<["-"], "target-cpu">,
   HelpText<"Target a specific cpu type">,
-  MarshallingInfoString<"TargetOpts->CPU">;
+  MarshallingInfoString<TargetOpts<"CPU">>;
 def tune_cpu : Separate<["-"], "tune-cpu">,
   HelpText<"Tune for a specific cpu type">,
-  MarshallingInfoString<"TargetOpts->TuneCPU">;
+  MarshallingInfoString<TargetOpts<"TuneCPU">>;
 def target_feature : Separate<["-"], "target-feature">,
   HelpText<"Target specific attributes">,
-  MarshallingInfoStringVector<"TargetOpts->FeaturesAsWritten">;
+  MarshallingInfoStringVector<TargetOpts<"FeaturesAsWritten">>;
 def triple : Separate<["-"], "triple">,
   HelpText<"Specify target triple (e.g. i686-apple-darwin9)">,
-  MarshallingInfoString<"TargetOpts->Triple", "llvm::Triple::normalize(llvm::sys::getDefaultTargetTriple())">,
+  MarshallingInfoString<TargetOpts<"Triple">, "llvm::Triple::normalize(llvm::sys::getDefaultTargetTriple())">,
   AlwaysEmit, Normalizer<"normalizeTriple">;
 def target_abi : Separate<["-"], "target-abi">,
   HelpText<"Target a particular ABI type">,
-  MarshallingInfoString<"TargetOpts->ABI">;
+  MarshallingInfoString<TargetOpts<"ABI">>;
 def target_sdk_version_EQ : Joined<["-"], "target-sdk-version=">,
   HelpText<"The version of target SDK used for compilation">;
 
 }
 
 def target_linker_version : Separate<["-"], "target-linker-version">,
   HelpText<"Target linker version">,
-  MarshallingInfoString<"TargetOpts->LinkerVersion">;
+  MarshallingInfoString<TargetOpts<"LinkerVersion">>;
 def triple_EQ : Joined<["-"], "triple=">, Alias<triple>;
 def mfpmath : Separate<["-"], "mfpmath">,
   HelpText<"Which unit to use for fp math">,
-  MarshallingInfoString<"TargetOpts->FPMath">;
+  MarshallingInfoString<TargetOpts<"FPMath">>;
 
 def fpadding_on_unsigned_fixed_point : Flag<["-"], "fpadding-on-unsigned-fixed-point">,
   HelpText<"Force each unsigned fixed point type to have an extra bit of padding to align their scales with those of signed fixed point types">;
 def fno_padding_on_unsigned_fixed_point : Flag<["-"], "fno-padding-on-unsigned-fixed-point">;
 
 //===----------------------------------------------------------------------===//
 // Analyzer Options
 //===----------------------------------------------------------------------===//
 
 def analysis_UnoptimizedCFG : Flag<["-"], "unoptimized-cfg">,
   HelpText<"Generate unoptimized CFGs for all analyses">,
-  MarshallingInfoFlag<"AnalyzerOpts->UnoptimizedCFG">;
+  MarshallingInfoFlag<AnalyzerOpts<"UnoptimizedCFG">>;
 def analysis_CFGAddImplicitDtors : Flag<["-"], "cfg-add-implicit-dtors">,
   HelpText<"Add C++ implicit destructors to CFGs for all analyses">;
 
 def analyzer_store : Separate<["-"], "analyzer-store">,
   HelpText<"Source Code Analysis - Abstract Memory Store Models">;
 def analyzer_store_EQ : Joined<["-"], "analyzer-store=">, Alias<analyzer_store>;
 
 def analyzer_constraints : Separate<["-"], "analyzer-constraints">,
   HelpText<"Source Code Analysis - Symbolic Constraint Engines">;
 def analyzer_constraints_EQ : Joined<["-"], "analyzer-constraints=">,
   Alias<analyzer_constraints>;
 
 def analyzer_output : Separate<["-"], "analyzer-output">,
   HelpText<"Source Code Analysis - Output Options">;
 def analyzer_output_EQ : Joined<["-"], "analyzer-output=">,
   Alias<analyzer_output>;
 
 def analyzer_purge : Separate<["-"], "analyzer-purge">,
   HelpText<"Source Code Analysis - Dead Symbol Removal Frequency">;
 def analyzer_purge_EQ : Joined<["-"], "analyzer-purge=">, Alias<analyzer_purge>;
 
 def analyzer_opt_analyze_headers : Flag<["-"], "analyzer-opt-analyze-headers">,
   HelpText<"Force the static analyzer to analyze functions defined in header files">,
-  MarshallingInfoFlag<"AnalyzerOpts->AnalyzeAll">;
+  MarshallingInfoFlag<AnalyzerOpts<"AnalyzeAll">>;
 def analyzer_opt_analyze_nested_blocks : Flag<["-"], "analyzer-opt-analyze-nested-blocks">,
   HelpText<"Analyze the definitions of blocks in addition to functions">,
-  MarshallingInfoFlag<"AnalyzerOpts->AnalyzeNestedBlocks">;
+  MarshallingInfoFlag<AnalyzerOpts<"AnalyzeNestedBlocks">>;
 def analyzer_display_progress : Flag<["-"], "analyzer-display-progress">,
   HelpText<"Emit verbose output about the analyzer's progress">,
-  MarshallingInfoFlag<"AnalyzerOpts->AnalyzerDisplayProgress">;
+  MarshallingInfoFlag<AnalyzerOpts<"AnalyzerDisplayProgress">>;
 def analyze_function : Separate<["-"], "analyze-function">,
   HelpText<"Run analysis on specific function (for C++ include parameters in name)">,
-  MarshallingInfoString<"AnalyzerOpts->AnalyzeSpecificFunction">;
+  MarshallingInfoString<AnalyzerOpts<"AnalyzeSpecificFunction">>;
 def analyze_function_EQ : Joined<["-"], "analyze-function=">, Alias<analyze_function>;
 def trim_egraph : Flag<["-"], "trim-egraph">,
   HelpText<"Only show error-related paths in the analysis graph">,
-  MarshallingInfoFlag<"AnalyzerOpts->TrimGraph">;
+  MarshallingInfoFlag<AnalyzerOpts<"TrimGraph">>;
 def analyzer_viz_egraph_graphviz : Flag<["-"], "analyzer-viz-egraph-graphviz">,
   HelpText<"Display exploded graph using GraphViz">,
-  MarshallingInfoFlag<"AnalyzerOpts->visualizeExplodedGraphWithGraphViz">;
+  MarshallingInfoFlag<AnalyzerOpts<"visualizeExplodedGraphWithGraphViz">>;
 def analyzer_dump_egraph : Separate<["-"], "analyzer-dump-egraph">,
   HelpText<"Dump exploded graph to the specified file">,
-  MarshallingInfoString<"AnalyzerOpts->DumpExplodedGraphTo">;
+  MarshallingInfoString<AnalyzerOpts<"DumpExplodedGraphTo">>;
 def analyzer_dump_egraph_EQ : Joined<["-"], "analyzer-dump-egraph=">, Alias<analyzer_dump_egraph>;
 
 def analyzer_inline_max_stack_depth : Separate<["-"], "analyzer-inline-max-stack-depth">,
   HelpText<"Bound on stack depth while inlining (4 by default)">,
   // Cap the stack depth at 4 calls (5 stack frames, base + 4 calls).
-  MarshallingInfoStringInt<"AnalyzerOpts->InlineMaxStackDepth", "5">;
+  MarshallingInfoStringInt<AnalyzerOpts<"InlineMaxStackDepth">, "5">;
 def analyzer_inline_max_stack_depth_EQ : Joined<["-"], "analyzer-inline-max-stack-depth=">,
   Alias<analyzer_inline_max_stack_depth>;
 
 def analyzer_inlining_mode : Separate<["-"], "analyzer-inlining-mode">,
   HelpText<"Specify the function selection heuristic used during inlining">;
 def analyzer_inlining_mode_EQ : Joined<["-"], "analyzer-inlining-mode=">, Alias<analyzer_inlining_mode>;
 
 def analyzer_disable_retry_exhausted : Flag<["-"], "analyzer-disable-retry-exhausted">,
   HelpText<"Do not re-analyze paths leading to exhausted nodes with a different strategy (may decrease code coverage)">,
-  MarshallingInfoFlag<"AnalyzerOpts->NoRetryExhausted">;
+  MarshallingInfoFlag<AnalyzerOpts<"NoRetryExhausted">>;
 
 def analyzer_max_loop : Separate<["-"], "analyzer-max-loop">,
   HelpText<"The maximum number of times the analyzer will go through a loop">,
-  MarshallingInfoStringInt<"AnalyzerOpts->maxBlockVisitOnPath", "4">;
+  MarshallingInfoStringInt<AnalyzerOpts<"maxBlockVisitOnPath">, "4">;
 def analyzer_stats : Flag<["-"], "analyzer-stats">,
   HelpText<"Print internal analyzer statistics.">,
-  MarshallingInfoFlag<"AnalyzerOpts->PrintStats">;
+  MarshallingInfoFlag<AnalyzerOpts<"PrintStats">>;
 
 def analyzer_checker : Separate<["-"], "analyzer-checker">,
   HelpText<"Choose analyzer checkers to enable">,
   ValuesCode<[{
     const char *Values =
     #define GET_CHECKERS
     #define CHECKER(FULLNAME, CLASS, HT, DOC_URI, IS_HIDDEN)  FULLNAME ","
     #include "clang/StaticAnalyzer/Checkers/Checkers.inc"

 
 def analyzer_disable_checker : Separate<["-"], "analyzer-disable-checker">,
   HelpText<"Choose analyzer checkers to disable">;
 def analyzer_disable_checker_EQ : Joined<["-"], "analyzer-disable-checker=">,
   Alias<analyzer_disable_checker>;
 
 def analyzer_disable_all_checks : Flag<["-"], "analyzer-disable-all-checks">,
   HelpText<"Disable all static analyzer checks">,
-  MarshallingInfoFlag<"AnalyzerOpts->DisableAllCheckers">;
+  MarshallingInfoFlag<AnalyzerOpts<"DisableAllCheckers">>;
 
 def analyzer_checker_help : Flag<["-"], "analyzer-checker-help">,
   HelpText<"Display the list of analyzer checkers that are available">,
-  MarshallingInfoFlag<"AnalyzerOpts->ShowCheckerHelp">;
+  MarshallingInfoFlag<AnalyzerOpts<"ShowCheckerHelp">>;
 
 def analyzer_checker_help_alpha : Flag<["-"], "analyzer-checker-help-alpha">,
   HelpText<"Display the list of in development analyzer checkers. These "
            "are NOT considered safe, they are unstable and will emit incorrect "
            "reports. Enable ONLY FOR DEVELOPMENT purposes">,
-  MarshallingInfoFlag<"AnalyzerOpts->ShowCheckerHelpAlpha">;
+  MarshallingInfoFlag<AnalyzerOpts<"ShowCheckerHelpAlpha">>;
 
 def analyzer_checker_help_developer : Flag<["-"], "analyzer-checker-help-developer">,
   HelpText<"Display the list of developer-only checkers such as modeling "
            "and debug checkers">,
-  MarshallingInfoFlag<"AnalyzerOpts->ShowCheckerHelpDeveloper">;
+  MarshallingInfoFlag<AnalyzerOpts<"ShowCheckerHelpDeveloper">>;
 
 def analyzer_config_help : Flag<["-"], "analyzer-config-help">,
   HelpText<"Display the list of -analyzer-config options. These are meant for "
            "development purposes only!">,
-  MarshallingInfoFlag<"AnalyzerOpts->ShowConfigOptionsList">;
+  MarshallingInfoFlag<AnalyzerOpts<"ShowConfigOptionsList">>;
 
 def analyzer_list_enabled_checkers : Flag<["-"], "analyzer-list-enabled-checkers">,
   HelpText<"Display the list of enabled analyzer checkers">,
-  MarshallingInfoFlag<"AnalyzerOpts->ShowEnabledCheckerList">;
+  MarshallingInfoFlag<AnalyzerOpts<"ShowEnabledCheckerList">>;
 
 def analyzer_config : Separate<["-"], "analyzer-config">,
   HelpText<"Choose analyzer options to enable">;
 
 def analyzer_checker_option_help : Flag<["-"], "analyzer-checker-option-help">,
   HelpText<"Display the list of checker and package options">,
-  MarshallingInfoFlag<"AnalyzerOpts->ShowCheckerOptionList">;
+  MarshallingInfoFlag<AnalyzerOpts<"ShowCheckerOptionList">>;
 
 def analyzer_checker_option_help_alpha : Flag<["-"], "analyzer-checker-option-help-alpha">,
   HelpText<"Display the list of in development checker and package options. "
            "These are NOT considered safe, they are unstable and will emit "
            "incorrect reports. Enable ONLY FOR DEVELOPMENT purposes">,
-  MarshallingInfoFlag<"AnalyzerOpts->ShowCheckerOptionAlphaList">;
+  MarshallingInfoFlag<AnalyzerOpts<"ShowCheckerOptionAlphaList">>;
 
 def analyzer_checker_option_help_developer : Flag<["-"], "analyzer-checker-option-help-developer">,
   HelpText<"Display the list of checker and package options meant for "
            "development purposes only">,
-  MarshallingInfoFlag<"AnalyzerOpts->ShowCheckerOptionDeveloperList">;
+  MarshallingInfoFlag<AnalyzerOpts<"ShowCheckerOptionDeveloperList">>;
 
 def analyzer_config_compatibility_mode : Separate<["-"], "analyzer-config-compatibility-mode">,
   HelpText<"Don't emit errors on invalid analyzer-config inputs">;
 
 def analyzer_config_compatibility_mode_EQ : Joined<["-"], "analyzer-config-compatibility-mode=">,
   Alias<analyzer_config_compatibility_mode>;
 
 def analyzer_werror : Flag<["-"], "analyzer-werror">,
   HelpText<"Emit analyzer results as errors rather than warnings">,
-  MarshallingInfoFlag<"AnalyzerOpts->AnalyzerWerror">;
+  MarshallingInfoFlag<AnalyzerOpts<"AnalyzerWerror">>;
 
 //===----------------------------------------------------------------------===//
 // Migrator Options
 //===----------------------------------------------------------------------===//
 def migrator_no_nsalloc_error : Flag<["-"], "no-ns-alloc-error">,
   HelpText<"Do not error on use of NSAllocateCollectable/NSReallocateCollectable">,
-  MarshallingInfoFlag<"MigratorOpts.NoNSAllocReallocError">;
+  MarshallingInfoFlag<MigratorOpts<"NoNSAllocReallocError">>;
 
 def migrator_no_finalize_removal : Flag<["-"], "no-finalize-removal">,
   HelpText<"Do not remove finalize method in gc mode">,
-  MarshallingInfoFlag<"MigratorOpts.NoFinalizeRemoval">;
+  MarshallingInfoFlag<MigratorOpts<"NoFinalizeRemoval">>;
 
 //===----------------------------------------------------------------------===//
 // CodeGen Options
 //===----------------------------------------------------------------------===//
 
 let Flags = [CC1Option, CC1AsOption, NoDriverOption] in {
 def debug_info_kind_EQ : Joined<["-"], "debug-info-kind=">,
   Values<"line-tables-only,line-directives-only,constructor,limited,standalone,unused-types">,
   NormalizedValuesScope<"codegenoptions">,
   NormalizedValues<["DebugLineTablesOnly", "DebugDirectivesOnly", "DebugInfoConstructor",
                     "LimitedDebugInfo", "FullDebugInfo", "UnusedTypeInfo"]>,
-  MarshallingInfoString<"CodeGenOpts.DebugInfo", "NoDebugInfo">, AutoNormalizeEnum;
+  MarshallingInfoString<CodeGenOpts<"DebugInfo">, "NoDebugInfo">, AutoNormalizeEnum;
 def debug_info_macro : Flag<["-"], "debug-info-macro">,
   HelpText<"Emit macro debug information">,
-  MarshallingInfoFlag<"CodeGenOpts.MacroDebugInfo">;
+  MarshallingInfoFlag<CodeGenOpts<"MacroDebugInfo">>;
 def default_function_attr : Separate<["-"], "default-function-attr">,
   HelpText<"Apply given attribute to all functions">,
-  MarshallingInfoStringVector<"CodeGenOpts.DefaultFunctionAttrs">;
+  MarshallingInfoStringVector<CodeGenOpts<"DefaultFunctionAttrs">>;
 def dwarf_version_EQ : Joined<["-"], "dwarf-version=">,
-  MarshallingInfoStringInt<"CodeGenOpts.DwarfVersion">;
+  MarshallingInfoStringInt<CodeGenOpts<"DwarfVersion">>;
 def debugger_tuning_EQ : Joined<["-"], "debugger-tuning=">,
   Values<"gdb,lldb,sce">,
   NormalizedValuesScope<"llvm::DebuggerKind">, NormalizedValues<["GDB", "LLDB", "SCE"]>,
-  MarshallingInfoString<"CodeGenOpts.DebuggerTuning", "Default">, AutoNormalizeEnum;
+  MarshallingInfoString<CodeGenOpts<"DebuggerTuning">, "Default">, AutoNormalizeEnum;
 def dwarf_debug_flags : Separate<["-"], "dwarf-debug-flags">,
   HelpText<"The string to embed in the Dwarf debug flags record.">,
-  MarshallingInfoString<"CodeGenOpts.DwarfDebugFlags">;
+  MarshallingInfoString<CodeGenOpts<"DwarfDebugFlags">>;
 def record_command_line : Separate<["-"], "record-command-line">,
   HelpText<"The string to embed in the .LLVM.command.line section.">,
-  MarshallingInfoString<"CodeGenOpts.RecordCommandLine">;
+  MarshallingInfoString<CodeGenOpts<"RecordCommandLine">>;
 def compress_debug_sections_EQ : Joined<["-", "--"], "compress-debug-sections=">,
     HelpText<"DWARF debug sections compression type">, Values<"none,zlib,zlib-gnu">,
     NormalizedValuesScope<"llvm::DebugCompressionType">, NormalizedValues<["None", "Z", "GNU"]>,
-    MarshallingInfoString<"CodeGenOpts.CompressDebugSections", "None">, AutoNormalizeEnum;
+    MarshallingInfoString<CodeGenOpts<"CompressDebugSections">, "None">, AutoNormalizeEnum;
 def compress_debug_sections : Flag<["-", "--"], "compress-debug-sections">,
   Alias<compress_debug_sections_EQ>, AliasArgs<["zlib"]>;
 def mno_exec_stack : Flag<["-"], "mnoexecstack">,
   HelpText<"Mark the file as not needing an executable stack">,
-  MarshallingInfoFlag<"CodeGenOpts.NoExecStack">;
+  MarshallingInfoFlag<CodeGenOpts<"NoExecStack">>;
 def massembler_no_warn : Flag<["-"], "massembler-no-warn">,
   HelpText<"Make assembler not emit warnings">,
-  MarshallingInfoFlag<"CodeGenOpts.NoWarn">;
+  MarshallingInfoFlag<CodeGenOpts<"NoWarn">>;
 def massembler_fatal_warnings : Flag<["-"], "massembler-fatal-warnings">,
   HelpText<"Make assembler warnings fatal">,
-  MarshallingInfoFlag<"CodeGenOpts.FatalWarnings">;
+  MarshallingInfoFlag<CodeGenOpts<"FatalWarnings">>;
 def mrelax_relocations : Flag<["--"], "mrelax-relocations">,
     HelpText<"Use relaxable elf relocations">,
-    MarshallingInfoFlag<"CodeGenOpts.RelaxELFRelocations">;
+    MarshallingInfoFlag<CodeGenOpts<"RelaxELFRelocations">>;
 def msave_temp_labels : Flag<["-"], "msave-temp-labels">,
   HelpText<"Save temporary labels in the symbol table. "
            "Note this may change .s semantics and shouldn't generally be used "
            "on compiler-generated code.">,
-  MarshallingInfoFlag<"CodeGenOpts.SaveTempLabels">;
+  MarshallingInfoFlag<CodeGenOpts<"SaveTempLabels">>;
 def mrelocation_model : Separate<["-"], "mrelocation-model">,
   HelpText<"The relocation model to use">, Values<"static,pic,ropi,rwpi,ropi-rwpi,dynamic-no-pic">,
   NormalizedValuesScope<"llvm::Reloc">,
   NormalizedValues<["Static", "PIC_", "ROPI", "RWPI", "ROPI_RWPI", "DynamicNoPIC"]>,
-  MarshallingInfoString<"CodeGenOpts.RelocationModel", "PIC_">,
+  MarshallingInfoString<CodeGenOpts<"RelocationModel">, "PIC_">,
   AutoNormalizeEnum;
 def fno_math_builtin : Flag<["-"], "fno-math-builtin">,
   HelpText<"Disable implicit builtin knowledge of math functions">,
-  MarshallingInfoFlag<"LangOpts->NoMathBuiltin">;
+  MarshallingInfoFlag<LangOpts<"NoMathBuiltin">>;
 def fuse_ctor_homing: Flag<["-"], "fuse-ctor-homing">,
     HelpText<"Use constructor homing if we are using limited debug info already">;
 }
 
 def disable_llvm_verifier : Flag<["-"], "disable-llvm-verifier">,
   HelpText<"Don't run the LLVM IR verifier pass">,
-  MarshallingInfoNegativeFlag<"CodeGenOpts.VerifyModule">;
+  MarshallingInfoNegativeFlag<CodeGenOpts<"VerifyModule">>;
 def disable_llvm_passes : Flag<["-"], "disable-llvm-passes">,
   HelpText<"Use together with -emit-llvm to get pristine LLVM IR from the "
            "frontend by not running any LLVM passes at all">,
-  MarshallingInfoFlag<"CodeGenOpts.DisableLLVMPasses">;
+  MarshallingInfoFlag<CodeGenOpts<"DisableLLVMPasses">>;
 def disable_llvm_optzns : Flag<["-"], "disable-llvm-optzns">,
   Alias<disable_llvm_passes>;
 def disable_lifetimemarkers : Flag<["-"], "disable-lifetime-markers">,
   HelpText<"Disable lifetime-markers emission even when optimizations are "
            "enabled">,
-  MarshallingInfoFlag<"CodeGenOpts.DisableLifetimeMarkers">;
+  MarshallingInfoFlag<CodeGenOpts<"DisableLifetimeMarkers">>;
 def disable_O0_optnone : Flag<["-"], "disable-O0-optnone">,
   HelpText<"Disable adding the optnone attribute to functions at O0">,
-  MarshallingInfoFlag<"CodeGenOpts.DisableO0ImplyOptNone">;
+  MarshallingInfoFlag<CodeGenOpts<"DisableO0ImplyOptNone">>;
 def disable_red_zone : Flag<["-"], "disable-red-zone">,
   HelpText<"Do not emit code that uses the red zone.">,
-  MarshallingInfoFlag<"CodeGenOpts.DisableRedZone">;
+  MarshallingInfoFlag<CodeGenOpts<"DisableRedZone">>;
 def dwarf_ext_refs : Flag<["-"], "dwarf-ext-refs">,
   HelpText<"Generate debug info with external references to clang modules"
            " or precompiled headers">,
-  MarshallingInfoFlag<"CodeGenOpts.DebugTypeExtRefs">;
+  MarshallingInfoFlag<CodeGenOpts<"DebugTypeExtRefs">>;
 def dwarf_explicit_import : Flag<["-"], "dwarf-explicit-import">,
   HelpText<"Generate explicit import from anonymous namespace to containing"
            " scope">,
-  MarshallingInfoFlag<"CodeGenOpts.DebugExplicitImport">;
+  MarshallingInfoFlag<CodeGenOpts<"DebugExplicitImport">>;
 def debug_forward_template_params : Flag<["-"], "debug-forward-template-params">,
   HelpText<"Emit complete descriptions of template parameters in forward"
            " declarations">,
-  MarshallingInfoFlag<"CodeGenOpts.DebugFwdTemplateParams">;
+  MarshallingInfoFlag<CodeGenOpts<"DebugFwdTemplateParams">>;
 def fforbid_guard_variables : Flag<["-"], "fforbid-guard-variables">,
   HelpText<"Emit an error if a C++ static local initializer would need a guard variable">,
-  MarshallingInfoFlag<"CodeGenOpts.ForbidGuardVariables">;
+  MarshallingInfoFlag<CodeGenOpts<"ForbidGuardVariables">>;
 def no_implicit_float : Flag<["-"], "no-implicit-float">,
   HelpText<"Don't generate implicit floating point instructions">,
-  MarshallingInfoFlag<"CodeGenOpts.NoImplicitFloat">;
+  MarshallingInfoFlag<CodeGenOpts<"NoImplicitFloat">>;
 def fdump_vtable_layouts : Flag<["-"], "fdump-vtable-layouts">,
   HelpText<"Dump the layouts of all vtables that will be emitted in a translation unit">,
-  MarshallingInfoFlag<"LangOpts->DumpVTableLayouts">;
+  MarshallingInfoFlag<LangOpts<"DumpVTableLayouts">>;
 def fmerge_functions : Flag<["-"], "fmerge-functions">,
   HelpText<"Permit merging of identical functions when optimizing.">,
-  MarshallingInfoFlag<"CodeGenOpts.MergeFunctions">;
+  MarshallingInfoFlag<CodeGenOpts<"MergeFunctions">>;
 def coverage_data_file : Separate<["-"], "coverage-data-file">,
   HelpText<"Emit coverage data to this filename.">,
-  MarshallingInfoString<"CodeGenOpts.CoverageDataFile">,
+  MarshallingInfoString<CodeGenOpts<"CoverageDataFile">>,
   ShouldParseIf<!strconcat(fprofile_arcs.KeyPath, "||", ftest_coverage.KeyPath)>;
 def coverage_data_file_EQ : Joined<["-"], "coverage-data-file=">,
   Alias<coverage_data_file>;
 def coverage_notes_file : Separate<["-"], "coverage-notes-file">,
   HelpText<"Emit coverage notes to this filename.">,
-  MarshallingInfoString<"CodeGenOpts.CoverageNotesFile">,
+  MarshallingInfoString<CodeGenOpts<"CoverageNotesFile">>,
   ShouldParseIf<!strconcat(fprofile_arcs.KeyPath, "||", ftest_coverage.KeyPath)>;
 def coverage_notes_file_EQ : Joined<["-"], "coverage-notes-file=">,
   Alias<coverage_notes_file>;
 def coverage_version_EQ : Joined<["-"], "coverage-version=">,
   HelpText<"Four-byte version string for gcov files.">;
 def dump_coverage_mapping : Flag<["-"], "dump-coverage-mapping">,
   HelpText<"Dump the coverage mapping records, for testing">,
-  MarshallingInfoFlag<"CodeGenOpts.DumpCoverageMapping">;
+  MarshallingInfoFlag<CodeGenOpts<"DumpCoverageMapping">>;
 def fuse_register_sized_bitfield_access: Flag<["-"], "fuse-register-sized-bitfield-access">,
   HelpText<"Use register sized accesses to bit-fields, when possible.">,
-  MarshallingInfoFlag<"CodeGenOpts.UseRegisterSizedBitfieldAccess">;
+  MarshallingInfoFlag<CodeGenOpts<"UseRegisterSizedBitfieldAccess">>;
 def relaxed_aliasing : Flag<["-"], "relaxed-aliasing">,
   HelpText<"Turn off Type Based Alias Analysis">,
-  MarshallingInfoFlag<"CodeGenOpts.RelaxedAliasing">;
+  MarshallingInfoFlag<CodeGenOpts<"RelaxedAliasing">>;
 def no_struct_path_tbaa : Flag<["-"], "no-struct-path-tbaa">,
   HelpText<"Turn off struct-path aware Type Based Alias Analysis">,
-  MarshallingInfoNegativeFlag<"CodeGenOpts.StructPathTBAA">;
+  MarshallingInfoNegativeFlag<CodeGenOpts<"StructPathTBAA">>;
 def new_struct_path_tbaa : Flag<["-"], "new-struct-path-tbaa">,
   HelpText<"Enable enhanced struct-path aware Type Based Alias Analysis">;
 def mdebug_pass : Separate<["-"], "mdebug-pass">,
   HelpText<"Enable additional debug output">,
-  MarshallingInfoString<"CodeGenOpts.DebugPass">;
+  MarshallingInfoString<CodeGenOpts<"DebugPass">>;
 def mframe_pointer_EQ : Joined<["-"], "mframe-pointer=">,
   HelpText<"Specify which frame pointers to retain (all, non-leaf, none).">, Values<"all,non-leaf,none">,
   NormalizedValuesScope<"CodeGenOptions::FramePointerKind">, NormalizedValues<["All", "NonLeaf", "None"]>,
-  MarshallingInfoString<"CodeGenOpts.FramePointer", "None">, AutoNormalizeEnum;
+  MarshallingInfoString<CodeGenOpts<"FramePointer">, "None">, AutoNormalizeEnum;
 def mdisable_tail_calls : Flag<["-"], "mdisable-tail-calls">,
   HelpText<"Disable tail call optimization, keeping the call stack accurate">,
-  MarshallingInfoFlag<"CodeGenOpts.DisableTailCalls">;
+  MarshallingInfoFlag<CodeGenOpts<"DisableTailCalls">>;
 def menable_no_infinities : Flag<["-"], "menable-no-infs">,
   HelpText<"Allow optimization to assume there are no infinities.">,
-  MarshallingInfoFlag<"LangOpts->NoHonorInfs">, ImpliedByAnyOf<[ffinite_math_only]>;
+  MarshallingInfoFlag<LangOpts<"NoHonorInfs">>, ImpliedByAnyOf<[ffinite_math_only]>;
 def menable_no_nans : Flag<["-"], "menable-no-nans">,
   HelpText<"Allow optimization to assume there are no NaNs.">,
-  MarshallingInfoFlag<"LangOpts->NoHonorNaNs">, ImpliedByAnyOf<[ffinite_math_only]>;
+  MarshallingInfoFlag<LangOpts<"NoHonorNaNs">>, ImpliedByAnyOf<[ffinite_math_only]>;
 def mreassociate : Flag<["-"], "mreassociate">,
   HelpText<"Allow reassociation transformations for floating-point instructions">,
-  MarshallingInfoFlag<"LangOpts->AllowFPReassoc">, ImpliedByAnyOf<[menable_unsafe_fp_math]>;
+  MarshallingInfoFlag<LangOpts<"AllowFPReassoc">>, ImpliedByAnyOf<[menable_unsafe_fp_math]>;
 def mabi_EQ_ieeelongdouble : Flag<["-"], "mabi=ieeelongdouble">,
   HelpText<"Use IEEE 754 quadruple-precision for long double">,
-  MarshallingInfoFlag<"LangOpts->PPCIEEELongDouble">;
+  MarshallingInfoFlag<LangOpts<"PPCIEEELongDouble">>;
 def mfloat_abi : Separate<["-"], "mfloat-abi">,
   HelpText<"The float ABI to use">,
-  MarshallingInfoString<"CodeGenOpts.FloatABI">;
+  MarshallingInfoString<CodeGenOpts<"FloatABI">>;
 def mtp : Separate<["-"], "mtp">,
   HelpText<"Mode for reading thread pointer">;
 def mlimit_float_precision : Separate<["-"], "mlimit-float-precision">,
   HelpText<"Limit float precision to the given value">,
-  MarshallingInfoString<"CodeGenOpts.LimitFloatPrecision">;
+  MarshallingInfoString<CodeGenOpts<"LimitFloatPrecision">>;
 def split_stacks : Flag<["-"], "split-stacks">,
   HelpText<"Try to use a split stack if possible.">,
-  MarshallingInfoFlag<"CodeGenOpts.EnableSegmentedStacks">;
+  MarshallingInfoFlag<CodeGenOpts<"EnableSegmentedStacks">>;
 def mregparm : Separate<["-"], "mregparm">,
   HelpText<"Limit the number of registers available for integer arguments">,
-  MarshallingInfoStringInt<"CodeGenOpts.NumRegisterParameters">;
+  MarshallingInfoStringInt<CodeGenOpts<"NumRegisterParameters">>;
 def msmall_data_limit : Separate<["-"], "msmall-data-limit">,
   HelpText<"Put global and static data smaller than the limit into a special section">,
-  MarshallingInfoStringInt<"CodeGenOpts.SmallDataLimit">;
+  MarshallingInfoStringInt<CodeGenOpts<"SmallDataLimit">>;
 def munwind_tables : Flag<["-"], "munwind-tables">,
   HelpText<"Generate unwinding tables for all functions">,
-  MarshallingInfoFlag<"CodeGenOpts.UnwindTables">;
+  MarshallingInfoFlag<CodeGenOpts<"UnwindTables">>;
 def mconstructor_aliases : Flag<["-"], "mconstructor-aliases">,
   HelpText<"Emit complete constructors and destructors as aliases when possible">,
-  MarshallingInfoFlag<"CodeGenOpts.CXXCtorDtorAliases">;
+  MarshallingInfoFlag<CodeGenOpts<"CXXCtorDtorAliases">>;
 def mlink_bitcode_file : Separate<["-"], "mlink-bitcode-file">,
   HelpText<"Link the given bitcode file before performing optimizations.">;
 def mlink_builtin_bitcode : Separate<["-"], "mlink-builtin-bitcode">,
   HelpText<"Link and internalize needed symbols from the given bitcode file "
            "before performing optimizations.">;
 def mlink_cuda_bitcode : Separate<["-"], "mlink-cuda-bitcode">,
   Alias<mlink_builtin_bitcode>;
 def vectorize_loops : Flag<["-"], "vectorize-loops">,
   HelpText<"Run the Loop vectorization passes">,
-  MarshallingInfoFlag<"CodeGenOpts.VectorizeLoop">;
+  MarshallingInfoFlag<CodeGenOpts<"VectorizeLoop">>;
 def vectorize_slp : Flag<["-"], "vectorize-slp">,
   HelpText<"Run the SLP vectorization passes">,
-  MarshallingInfoFlag<"CodeGenOpts.VectorizeSLP">;
+  MarshallingInfoFlag<CodeGenOpts<"VectorizeSLP">>;
 def dependent_lib : Joined<["--"], "dependent-lib=">,
   HelpText<"Add dependent library">,
-  MarshallingInfoStringVector<"CodeGenOpts.DependentLibraries">;
+  MarshallingInfoStringVector<CodeGenOpts<"DependentLibraries">>;
 def linker_option : Joined<["--"], "linker-option=">,
   HelpText<"Add linker option">,
-  MarshallingInfoStringVector<"CodeGenOpts.LinkerOptions">;
+  MarshallingInfoStringVector<CodeGenOpts<"LinkerOptions">>;
 def fsanitize_coverage_type : Joined<["-"], "fsanitize-coverage-type=">,
                               HelpText<"Sanitizer coverage type">,
-                              MarshallingInfoStringInt<"CodeGenOpts.SanitizeCoverageType">;
+                              MarshallingInfoStringInt<CodeGenOpts<"SanitizeCoverageType">>;
 def fsanitize_coverage_indirect_calls
     : Flag<["-"], "fsanitize-coverage-indirect-calls">,
       HelpText<"Enable sanitizer coverage for indirect calls">,
-      MarshallingInfoFlag<"CodeGenOpts.SanitizeCoverageIndirectCalls">;
+      MarshallingInfoFlag<CodeGenOpts<"SanitizeCoverageIndirectCalls">>;
 def fsanitize_coverage_trace_bb
     : Flag<["-"], "fsanitize-coverage-trace-bb">,
       HelpText<"Enable basic block tracing in sanitizer coverage">,
-      MarshallingInfoFlag<"CodeGenOpts.SanitizeCoverageTraceBB">;
+      MarshallingInfoFlag<CodeGenOpts<"SanitizeCoverageTraceBB">>;
 def fsanitize_coverage_trace_cmp
     : Flag<["-"], "fsanitize-coverage-trace-cmp">,
       HelpText<"Enable cmp instruction tracing in sanitizer coverage">,
-      MarshallingInfoFlag<"CodeGenOpts.SanitizeCoverageTraceCmp">;
+      MarshallingInfoFlag<CodeGenOpts<"SanitizeCoverageTraceCmp">>;
 def fsanitize_coverage_trace_div
     : Flag<["-"], "fsanitize-coverage-trace-div">,
       HelpText<"Enable div instruction tracing in sanitizer coverage">,
-      MarshallingInfoFlag<"CodeGenOpts.SanitizeCoverageTraceDiv">;
+      MarshallingInfoFlag<CodeGenOpts<"SanitizeCoverageTraceDiv">>;
 def fsanitize_coverage_trace_gep
     : Flag<["-"], "fsanitize-coverage-trace-gep">,
       HelpText<"Enable gep instruction tracing in sanitizer coverage">,
-      MarshallingInfoFlag<"CodeGenOpts.SanitizeCoverageTraceGep">;
+      MarshallingInfoFlag<CodeGenOpts<"SanitizeCoverageTraceGep">>;
 def fsanitize_coverage_8bit_counters
     : Flag<["-"], "fsanitize-coverage-8bit-counters">,
       HelpText<"Enable frequency counters in sanitizer coverage">,
-      MarshallingInfoFlag<"CodeGenOpts.SanitizeCoverage8bitCounters">;
+      MarshallingInfoFlag<CodeGenOpts<"SanitizeCoverage8bitCounters">>;
 def fsanitize_coverage_inline_8bit_counters
     : Flag<["-"], "fsanitize-coverage-inline-8bit-counters">,
       HelpText<"Enable inline 8-bit counters in sanitizer coverage">,
-      MarshallingInfoFlag<"CodeGenOpts.SanitizeCoverageInline8bitCounters">;
+      MarshallingInfoFlag<CodeGenOpts<"SanitizeCoverageInline8bitCounters">>;
 def fsanitize_coverage_inline_bool_flag
     : Flag<["-"], "fsanitize-coverage-inline-bool-flag">,
       HelpText<"Enable inline bool flag in sanitizer coverage">,
-      MarshallingInfoFlag<"CodeGenOpts.SanitizeCoverageInlineBoolFlag">;
+      MarshallingInfoFlag<CodeGenOpts<"SanitizeCoverageInlineBoolFlag">>;
 def fsanitize_coverage_pc_table
     : Flag<["-"], "fsanitize-coverage-pc-table">,
       HelpText<"Create a table of coverage-instrumented PCs">,
-      MarshallingInfoFlag<"CodeGenOpts.SanitizeCoveragePCTable">;
+      MarshallingInfoFlag<CodeGenOpts<"SanitizeCoveragePCTable">>;
 def fsanitize_coverage_trace_pc
     : Flag<["-"], "fsanitize-coverage-trace-pc">,
       HelpText<"Enable PC tracing in sanitizer coverage">,
-      MarshallingInfoFlag<"CodeGenOpts.SanitizeCoverageTracePC">;
+      MarshallingInfoFlag<CodeGenOpts<"SanitizeCoverageTracePC">>;
 def fsanitize_coverage_trace_pc_guard
     : Flag<["-"], "fsanitize-coverage-trace-pc-guard">,
       HelpText<"Enable PC tracing with guard in sanitizer coverage">,
-      MarshallingInfoFlag<"CodeGenOpts.SanitizeCoverageTracePCGuard">;
+      MarshallingInfoFlag<CodeGenOpts<"SanitizeCoverageTracePCGuard">>;
 def fsanitize_coverage_no_prune
     : Flag<["-"], "fsanitize-coverage-no-prune">,
       HelpText<"Disable coverage pruning (i.e. instrument all blocks/edges)">,
-      MarshallingInfoFlag<"CodeGenOpts.SanitizeCoverageNoPrune">;
+      MarshallingInfoFlag<CodeGenOpts<"SanitizeCoverageNoPrune">>;
 def fsanitize_coverage_stack_depth
     : Flag<["-"], "fsanitize-coverage-stack-depth">,
       HelpText<"Enable max stack depth tracing">,
-      MarshallingInfoFlag<"CodeGenOpts.SanitizeCoverageStackDepth">;
+      MarshallingInfoFlag<CodeGenOpts<"SanitizeCoverageStackDepth">>;
 def fpatchable_function_entry_offset_EQ
     : Joined<["-"], "fpatchable-function-entry-offset=">, MetaVarName<"<M>">,
       HelpText<"Generate M NOPs before function entry">,
-      MarshallingInfoStringInt<"CodeGenOpts.PatchableFunctionEntryOffset">;
+      MarshallingInfoStringInt<CodeGenOpts<"PatchableFunctionEntryOffset">>;
 def fprofile_instrument_EQ : Joined<["-"], "fprofile-instrument=">,
     HelpText<"Enable PGO instrumentation. The accepted value is clang, llvm, "
              "or none">, Values<"none,clang,llvm,csllvm">,
     NormalizedValuesScope<"CodeGenOptions">,
     NormalizedValues<["ProfileNone", "ProfileClangInstr", "ProfileIRInstr", "ProfileCSIRInstr"]>,
-    MarshallingInfoString<"CodeGenOpts.ProfileInstr", "ProfileNone">, AutoNormalizeEnum;
+    MarshallingInfoString<CodeGenOpts<"ProfileInstr">, "ProfileNone">, AutoNormalizeEnum;
 def fprofile_instrument_path_EQ : Joined<["-"], "fprofile-instrument-path=">,
     HelpText<"Generate instrumented code to collect execution counts into "
              "<file> (overridden by LLVM_PROFILE_FILE env var)">,
-    MarshallingInfoString<"CodeGenOpts.InstrProfileOutput">;
+    MarshallingInfoString<CodeGenOpts<"InstrProfileOutput">>;
 def fprofile_instrument_use_path_EQ :
     Joined<["-"], "fprofile-instrument-use-path=">,
     HelpText<"Specify the profile path in PGO use compilation">,
-    MarshallingInfoString<"CodeGenOpts.ProfileInstrumentUsePath">;
+    MarshallingInfoString<CodeGenOpts<"ProfileInstrumentUsePath">>;
 def flto_visibility_public_std:
     Flag<["-"], "flto-visibility-public-std">,
     HelpText<"Use public LTO visibility for classes in std and stdext namespaces">,
-    MarshallingInfoFlag<"CodeGenOpts.LTOVisibilityPublicStd">;
+    MarshallingInfoFlag<CodeGenOpts<"LTOVisibilityPublicStd">>;
 defm lto_unit : BoolCC1Option<"lto-unit",
-  "CodeGenOpts.LTOUnit", DefaultsToFalse,
+  CodeGenOpts<"LTOUnit">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Emit IR to support LTO unit features (CFI, whole program vtable opt)">,
   ResetBy<NegFlag>, BothFlags<[]>, "f">;
 defm debug_pass_manager : BoolOption<"debug-pass-manager",
-  "CodeGenOpts.DebugPassManager", DefaultsToFalse,
+  CodeGenOpts<"DebugPassManager">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Prints debug information for the new pass manager">,
   ResetBy<NegFlag, [], "Disables debug printing for the new pass manager">,
   BothFlags<[]>, "f">;
 def fexperimental_debug_variable_locations : Flag<["-"],
     "fexperimental-debug-variable-locations">,
     HelpText<"Use experimental new value-tracking variable locations">,
-    MarshallingInfoFlag<"CodeGenOpts.ValueTrackingVariableLocations">;
+    MarshallingInfoFlag<CodeGenOpts<"ValueTrackingVariableLocations">>;
 // The driver option takes the key as a parameter to the -msign-return-address=
 // and -mbranch-protection= options, but CC1 has a separate option so we
 // don't have to parse the parameter twice.
 def msign_return_address_key_EQ : Joined<["-"], "msign-return-address-key=">,
     Values<"a_key,b_key">;
 def mbranch_target_enforce : Flag<["-"], "mbranch-target-enforce">,
-  MarshallingInfoFlag<"LangOpts->BranchTargetEnforcement">;
+  MarshallingInfoFlag<LangOpts<"BranchTargetEnforcement">>;
 def fno_dllexport_inlines : Flag<["-"], "fno-dllexport-inlines">,
-  MarshallingInfoNegativeFlag<"LangOpts->DllExportInlines">;
+  MarshallingInfoNegativeFlag<LangOpts<"DllExportInlines">>;
 def cfguard_no_checks : Flag<["-"], "cfguard-no-checks">,
     HelpText<"Emit Windows Control Flow Guard tables only (no checks)">,
-    MarshallingInfoFlag<"CodeGenOpts.ControlFlowGuardNoChecks">;
+    MarshallingInfoFlag<CodeGenOpts<"ControlFlowGuardNoChecks">>;
 def cfguard : Flag<["-"], "cfguard">,
     HelpText<"Emit Windows Control Flow Guard tables and checks">,
-    MarshallingInfoFlag<"CodeGenOpts.ControlFlowGuard">;
+    MarshallingInfoFlag<CodeGenOpts<"ControlFlowGuard">>;
 
 def fdenormal_fp_math_f32_EQ : Joined<["-"], "fdenormal-fp-math-f32=">,
    Group<f_Group>;
 
 //===----------------------------------------------------------------------===//
 // Dependency Output Options
 //===----------------------------------------------------------------------===//
 
 def sys_header_deps : Flag<["-"], "sys-header-deps">,
   HelpText<"Include system headers in dependency output">,
-  MarshallingInfoFlag<"DependencyOutputOpts.IncludeSystemHeaders">;
+  MarshallingInfoFlag<DependencyOutputOpts<"IncludeSystemHeaders">>;
 def module_file_deps : Flag<["-"], "module-file-deps">,
   HelpText<"Include module files in dependency output">,
-  MarshallingInfoFlag<"DependencyOutputOpts.IncludeModuleFiles">;
+  MarshallingInfoFlag<DependencyOutputOpts<"IncludeModuleFiles">>;
 def header_include_file : Separate<["-"], "header-include-file">,
   HelpText<"Filename (or -) to write header include output to">,
-  MarshallingInfoString<"DependencyOutputOpts.HeaderIncludeOutputFile">;
+  MarshallingInfoString<DependencyOutputOpts<"HeaderIncludeOutputFile">>;
 def show_includes : Flag<["--"], "show-includes">,
   HelpText<"Print cl.exe style /showIncludes to stdout">;
 
 //===----------------------------------------------------------------------===//
 // Diagnostic Options
 //===----------------------------------------------------------------------===//
 
 def diagnostic_log_file : Separate<["-"], "diagnostic-log-file">,
   HelpText<"Filename (or -) to log diagnostics to">,
-  MarshallingInfoString<"DiagnosticLogFile">, IsDiag;
+  MarshallingInfoString<DiagnosticOpts<"DiagnosticLogFile">>;
 def diagnostic_serialized_file : Separate<["-"], "serialize-diagnostic-file">,
   MetaVarName<"<filename>">,
   HelpText<"File for serializing diagnostics in a binary format">;
 
 def fdiagnostics_format : Separate<["-"], "fdiagnostics-format">,
   HelpText<"Change diagnostic formatting to match IDE and command line tools">, Values<"clang,msvc,msvc-fallback,vi">,
   NormalizedValuesScope<"DiagnosticOptions">, NormalizedValues<["Clang", "MSVC", "MSVC", "Vi"]>,
-  MarshallingInfoString<"Format", "Clang">, AutoNormalizeEnum, IsDiag;
+  MarshallingInfoString<DiagnosticOpts<"Format">, "Clang">, AutoNormalizeEnum;
 def fdiagnostics_show_category : Separate<["-"], "fdiagnostics-show-category">,
   HelpText<"Print diagnostic category">, Values<"none,id,name">,
   NormalizedValues<["0", "1", "2"]>,
-  MarshallingInfoString<"ShowCategories", "0">, AutoNormalizeEnum, IsDiag;
+  MarshallingInfoString<DiagnosticOpts<"ShowCategories">, "0">, AutoNormalizeEnum;
 def fno_diagnostics_use_presumed_location : Flag<["-"], "fno-diagnostics-use-presumed-location">,
   HelpText<"Ignore #line directives when displaying diagnostic locations">,
-  MarshallingInfoNegativeFlag<"ShowPresumedLoc">, IsDiag;
+  MarshallingInfoNegativeFlag<DiagnosticOpts<"ShowPresumedLoc">>;
 def ftabstop : Separate<["-"], "ftabstop">, MetaVarName<"<N>">,
   HelpText<"Set the tab stop distance.">,
-  MarshallingInfoStringInt<"TabStop", "DiagnosticOptions::DefaultTabStop">, IsDiag;
+  MarshallingInfoStringInt<DiagnosticOpts<"TabStop">, "DiagnosticOptions::DefaultTabStop">;
 def ferror_limit : Separate<["-"], "ferror-limit">, MetaVarName<"<N>">,
   HelpText<"Set the maximum number of errors to emit before stopping (0 = no limit).">,
-  MarshallingInfoStringInt<"ErrorLimit">, IsDiag;
+  MarshallingInfoStringInt<DiagnosticOpts<"ErrorLimit">>;
 def fmacro_backtrace_limit : Separate<["-"], "fmacro-backtrace-limit">, MetaVarName<"<N>">,
   HelpText<"Set the maximum number of entries to print in a macro expansion backtrace (0 = no limit).">,
-  MarshallingInfoStringInt<"MacroBacktraceLimit", "DiagnosticOptions::DefaultMacroBacktraceLimit">, IsDiag;
+  MarshallingInfoStringInt<DiagnosticOpts<"MacroBacktraceLimit">, "DiagnosticOptions::DefaultMacroBacktraceLimit">;
 def ftemplate_backtrace_limit : Separate<["-"], "ftemplate-backtrace-limit">, MetaVarName<"<N>">,
   HelpText<"Set the maximum number of entries to print in a template instantiation backtrace (0 = no limit).">,
-  MarshallingInfoStringInt<"TemplateBacktraceLimit", "DiagnosticOptions::DefaultTemplateBacktraceLimit">, IsDiag;
+  MarshallingInfoStringInt<DiagnosticOpts<"TemplateBacktraceLimit">, "DiagnosticOptions::DefaultTemplateBacktraceLimit">;
 def fconstexpr_backtrace_limit : Separate<["-"], "fconstexpr-backtrace-limit">, MetaVarName<"<N>">,
   HelpText<"Set the maximum number of entries to print in a constexpr evaluation backtrace (0 = no limit).">,
-  MarshallingInfoStringInt<"ConstexprBacktraceLimit", "DiagnosticOptions::DefaultConstexprBacktraceLimit">, IsDiag;
+  MarshallingInfoStringInt<DiagnosticOpts<"ConstexprBacktraceLimit">, "DiagnosticOptions::DefaultConstexprBacktraceLimit">;
 def fspell_checking_limit : Separate<["-"], "fspell-checking-limit">, MetaVarName<"<N>">,
   HelpText<"Set the maximum number of times to perform spell checking on unrecognized identifiers (0 = no limit).">,
-  MarshallingInfoStringInt<"SpellCheckingLimit", "DiagnosticOptions::DefaultSpellCheckingLimit">, IsDiag;
+  MarshallingInfoStringInt<DiagnosticOpts<"SpellCheckingLimit">, "DiagnosticOptions::DefaultSpellCheckingLimit">;
 def fcaret_diagnostics_max_lines :
   Separate<["-"], "fcaret-diagnostics-max-lines">, MetaVarName<"<N>">,
   HelpText<"Set the maximum number of source lines to show in a caret diagnostic">,
-  MarshallingInfoStringInt<"SnippetLineLimit", "DiagnosticOptions::DefaultSnippetLineLimit">, IsDiag;
+  MarshallingInfoStringInt<DiagnosticOpts<"SnippetLineLimit">, "DiagnosticOptions::DefaultSnippetLineLimit">;
 def verify_EQ : CommaJoined<["-"], "verify=">,
   MetaVarName<"<prefixes>">,
   HelpText<"Verify diagnostic output using comment directives that start with"
            " prefixes in the comma-separated sequence <prefixes>">,
-  MarshallingInfoStringVector<"VerifyPrefixes">, IsDiag;
+  MarshallingInfoStringVector<DiagnosticOpts<"VerifyPrefixes">>;
 def verify : Flag<["-"], "verify">,
   HelpText<"Equivalent to -verify=expected">;
 def verify_ignore_unexpected : Flag<["-"], "verify-ignore-unexpected">,
   HelpText<"Ignore unexpected diagnostic messages">;
 def verify_ignore_unexpected_EQ : CommaJoined<["-"], "verify-ignore-unexpected=">,
   HelpText<"Ignore unexpected diagnostic messages">;
 def Wno_rewrite_macros : Flag<["-"], "Wno-rewrite-macros">,
   HelpText<"Silence ObjC rewriting warnings">,
-  MarshallingInfoFlag<"NoRewriteMacros">, IsDiag;
+  MarshallingInfoFlag<DiagnosticOpts<"NoRewriteMacros">>;
 
 //===----------------------------------------------------------------------===//
 // Frontend Options
 //===----------------------------------------------------------------------===//
 
 // This isn't normally used, it is just here so we can parse a
 // CompilerInvocation out of a driver-derived argument vector.
 def cc1 : Flag<["-"], "cc1">;
 def cc1as : Flag<["-"], "cc1as">;
 
 def ast_merge : Separate<["-"], "ast-merge">,
   MetaVarName<"<ast file>">,
   HelpText<"Merge the given AST file into the translation unit being compiled.">,
-  MarshallingInfoStringVector<"FrontendOpts.ASTMergeFiles">;
+  MarshallingInfoStringVector<FrontendOpts<"ASTMergeFiles">>;
 def aux_target_cpu : Separate<["-"], "aux-target-cpu">,
   HelpText<"Target a specific auxiliary cpu type">;
 def aux_target_feature : Separate<["-"], "aux-target-feature">,
   HelpText<"Target specific auxiliary attributes">;
 def aux_triple : Separate<["-"], "aux-triple">,
   HelpText<"Auxiliary target triple.">,
-  MarshallingInfoString<"FrontendOpts.AuxTriple">;
+  MarshallingInfoString<FrontendOpts<"AuxTriple">>;
 def code_completion_at : Separate<["-"], "code-completion-at">,
   MetaVarName<"<file>:<line>:<column>">,
   HelpText<"Dump code-completion information at a location">;
 def remap_file : Separate<["-"], "remap-file">,
   MetaVarName<"<from>;<to>">,
   HelpText<"Replace the contents of the <from> file with the contents of the <to> file">;
 def code_completion_at_EQ : Joined<["-"], "code-completion-at=">,
   Alias<code_completion_at>;
 def code_completion_macros : Flag<["-"], "code-completion-macros">,
   HelpText<"Include macros in code-completion results">,
-  MarshallingInfoFlag<"FrontendOpts.CodeCompleteOpts.IncludeMacros">;
+  MarshallingInfoFlag<FrontendOpts<"CodeCompleteOpts.IncludeMacros">>;
 def code_completion_patterns : Flag<["-"], "code-completion-patterns">,
   HelpText<"Include code patterns in code-completion results">,
-  MarshallingInfoFlag<"FrontendOpts.CodeCompleteOpts.IncludeCodePatterns">;
+  MarshallingInfoFlag<FrontendOpts<"CodeCompleteOpts.IncludeCodePatterns">>;
 def no_code_completion_globals : Flag<["-"], "no-code-completion-globals">,
   HelpText<"Do not include global declarations in code-completion results.">,
-  MarshallingInfoNegativeFlag<"FrontendOpts.CodeCompleteOpts.IncludeGlobals">;
+  MarshallingInfoNegativeFlag<FrontendOpts<"CodeCompleteOpts.IncludeGlobals">>;
 def no_code_completion_ns_level_decls : Flag<["-"], "no-code-completion-ns-level-decls">,
   HelpText<"Do not include declarations inside namespaces (incl. global namespace) in the code-completion results.">,
-  MarshallingInfoNegativeFlag<"FrontendOpts.CodeCompleteOpts.IncludeNamespaceLevelDecls">;
+  MarshallingInfoNegativeFlag<FrontendOpts<"CodeCompleteOpts.IncludeNamespaceLevelDecls">>;
 def code_completion_brief_comments : Flag<["-"], "code-completion-brief-comments">,
   HelpText<"Include brief documentation comments in code-completion results.">,
-  MarshallingInfoFlag<"FrontendOpts.CodeCompleteOpts.IncludeBriefComments">;
+  MarshallingInfoFlag<FrontendOpts<"CodeCompleteOpts.IncludeBriefComments">>;
 def code_completion_with_fixits : Flag<["-"], "code-completion-with-fixits">,
   HelpText<"Include code completion results which require small fix-its.">,
-  MarshallingInfoFlag<"FrontendOpts.CodeCompleteOpts.IncludeFixIts">;
+  MarshallingInfoFlag<FrontendOpts<"CodeCompleteOpts.IncludeFixIts">>;
 def disable_free : Flag<["-"], "disable-free">,
   HelpText<"Disable freeing of memory on exit">,
-  MarshallingInfoFlag<"FrontendOpts.DisableFree">;
+  MarshallingInfoFlag<FrontendOpts<"DisableFree">>;
 def discard_value_names : Flag<["-"], "discard-value-names">,
   HelpText<"Discard value names in LLVM IR">,
-  MarshallingInfoFlag<"CodeGenOpts.DiscardValueNames">;
+  MarshallingInfoFlag<CodeGenOpts<"DiscardValueNames">>;
 def load : Separate<["-"], "load">, MetaVarName<"<dsopath>">,
   HelpText<"Load the named plugin (dynamic shared object)">;
 def plugin : Separate<["-"], "plugin">, MetaVarName<"<name>">,
   HelpText<"Use the named plugin action instead of the default action (use \"help\" to list available options)">;
 def plugin_arg : JoinedAndSeparate<["-"], "plugin-arg-">,
     MetaVarName<"<name> <arg>">,
     HelpText<"Pass <arg> to plugin <name>">;
 def add_plugin : Separate<["-"], "add-plugin">, MetaVarName<"<name>">,
   HelpText<"Use the named plugin action in addition to the default action">;
 def ast_dump_filter : Separate<["-"], "ast-dump-filter">,
   MetaVarName<"<dump_filter>">,
   HelpText<"Use with -ast-dump or -ast-print to dump/print only AST declaration"
            " nodes having a certain substring in a qualified name. Use"
            " -ast-list to list all filterable declaration node names.">,
-  MarshallingInfoString<"FrontendOpts.ASTDumpFilter">;
+  MarshallingInfoString<FrontendOpts<"ASTDumpFilter">>;
 def fno_modules_global_index : Flag<["-"], "fno-modules-global-index">,
   HelpText<"Do not automatically generate or update the global module index">,
-  MarshallingInfoNegativeFlag<"FrontendOpts.UseGlobalModuleIndex">;
+  MarshallingInfoNegativeFlag<FrontendOpts<"UseGlobalModuleIndex">>;
 def fno_modules_error_recovery : Flag<["-"], "fno-modules-error-recovery">,
   HelpText<"Do not automatically import modules for error recovery">,
-  MarshallingInfoNegativeFlag<"LangOpts->ModulesErrorRecovery">;
+  MarshallingInfoNegativeFlag<LangOpts<"ModulesErrorRecovery">>;
 def fmodule_map_file_home_is_cwd : Flag<["-"], "fmodule-map-file-home-is-cwd">,
   HelpText<"Use the current working directory as the home directory of "
            "module maps specified by -fmodule-map-file=<FILE>">,
-  MarshallingInfoFlag<"HeaderSearchOpts->ModuleMapFileHomeIsCwd">;
+  MarshallingInfoFlag<HeaderSearchOpts<"ModuleMapFileHomeIsCwd">>;
 def fmodule_feature : Separate<["-"], "fmodule-feature">,
   MetaVarName<"<feature>">,
   HelpText<"Enable <feature> in module map requires declarations">,
-  MarshallingInfoStringVector<"LangOpts->ModuleFeatures">;
+  MarshallingInfoStringVector<LangOpts<"ModuleFeatures">>;
 def fmodules_embed_file_EQ : Joined<["-"], "fmodules-embed-file=">,
   MetaVarName<"<file>">,
   HelpText<"Embed the contents of the specified file into the module file "
            "being compiled.">,
-  MarshallingInfoStringVector<"FrontendOpts.ModulesEmbedFiles">;
+  MarshallingInfoStringVector<FrontendOpts<"ModulesEmbedFiles">>;
 def fmodules_embed_all_files : Joined<["-"], "fmodules-embed-all-files">,
   HelpText<"Embed the contents of all files read by this compilation into "
            "the produced module file.">,
-  MarshallingInfoFlag<"FrontendOpts.ModulesEmbedAllFiles">;
+  MarshallingInfoFlag<FrontendOpts<"ModulesEmbedAllFiles">>;
 def fmodules_local_submodule_visibility :
   Flag<["-"], "fmodules-local-submodule-visibility">,
   HelpText<"Enforce name visibility rules across submodules of the same "
            "top-level module.">;
 def fmodules_codegen :
   Flag<["-"], "fmodules-codegen">,
   HelpText<"Generate code for uses of this module that assumes an explicit "
            "object file will be built for the module">,
-  MarshallingInfoFlag<"LangOpts->ModulesCodegen">;
+  MarshallingInfoFlag<LangOpts<"ModulesCodegen">>;
 def fmodules_debuginfo :
   Flag<["-"], "fmodules-debuginfo">,
   HelpText<"Generate debug info for types in an object file built from this "
            "module and do not generate them elsewhere">,
-  MarshallingInfoFlag<"LangOpts->ModulesDebugInfo">;
+  MarshallingInfoFlag<LangOpts<"ModulesDebugInfo">>;
 def fmodule_format_EQ : Joined<["-"], "fmodule-format=">,
   HelpText<"Select the container format for clang modules and PCH. "
            "Supported options are 'raw' and 'obj'.">,
-  MarshallingInfoString<"HeaderSearchOpts->ModuleFormat", [{"raw"}]>;
+  MarshallingInfoString<HeaderSearchOpts<"ModuleFormat">, [{"raw"}]>;
 def ftest_module_file_extension_EQ :
   Joined<["-"], "ftest-module-file-extension=">,
   HelpText<"introduce a module file extension for testing purposes. "
            "The argument is parsed as blockname:major:minor:hashed:user info">;
 def fconcepts_ts : Flag<["-"], "fconcepts-ts">,
   HelpText<"Enable C++ Extensions for Concepts. (deprecated - use -std=c++2a)">;
 def fno_concept_satisfaction_caching : Flag<["-"],
                                             "fno-concept-satisfaction-caching">,
   HelpText<"Disable satisfaction caching for C++2a Concepts.">,
-  MarshallingInfoNegativeFlag<"LangOpts->ConceptSatisfactionCaching">;
+  MarshallingInfoNegativeFlag<LangOpts<"ConceptSatisfactionCaching">>;
 
 defm recovery_ast : BoolOption<"recovery-ast",
-  "LangOpts->RecoveryAST", DefaultsToTrue,
+  LangOpts<"RecoveryAST">, DefaultsToTrue,
   ChangedBy<NegFlag>, ResetBy<PosFlag, [], "Preserve expressions in AST rather "
                               "than dropping them when encountering semantic errors">,
   BothFlags<[]>, "f">;
 defm recovery_ast_type : BoolOption<"recovery-ast-type",
-  "LangOpts->RecoveryASTType", DefaultsToTrue,
+  LangOpts<"RecoveryASTType">, DefaultsToTrue,
   ChangedBy<NegFlag>, ResetBy<PosFlag, [], "Preserve the type for recovery "
                               "expressions when possible">,
   BothFlags<[]>, "f">;
 
 let Group = Action_Group in {
 
 def Eonly : Flag<["-"], "Eonly">,
   HelpText<"Just run preprocessor, no output (for timings)">;
HelpText<"Build ASTs and then debug dump them in the specified format. "
            "Supported formats include: default, json">;
 def ast_dump_all : Flag<["-"], "ast-dump-all">,
   HelpText<"Build ASTs and then debug dump them, forcing deserialization">;
 def ast_dump_all_EQ : Joined<["-"], "ast-dump-all=">,
   HelpText<"Build ASTs and then debug dump them in the specified format, "
            "forcing deserialization. Supported formats include: default, json">;
 def ast_dump_decl_types : Flag<["-"], "ast-dump-decl-types">,
   HelpText<"Include declaration types in AST dumps">,
-  MarshallingInfoFlag<"FrontendOpts.ASTDumpDeclTypes">;
+  MarshallingInfoFlag<FrontendOpts<"ASTDumpDeclTypes">>;
 def templight_dump : Flag<["-"], "templight-dump">,
   HelpText<"Dump templight information to stdout">;
 def ast_dump_lookups : Flag<["-"], "ast-dump-lookups">,
   HelpText<"Build ASTs and then debug dump their name lookup tables">,
-  MarshallingInfoFlag<"FrontendOpts.ASTDumpLookups">;
+  MarshallingInfoFlag<FrontendOpts<"ASTDumpLookups">>;
 def ast_view : Flag<["-"], "ast-view">,
   HelpText<"Build ASTs and view them with GraphViz">;
 def emit_module : Flag<["-"], "emit-module">,
   HelpText<"Generate pre-compiled module file from a module map">;
 def emit_module_interface : Flag<["-"], "emit-module-interface">,
   HelpText<"Generate pre-compiled module file from a C++ module interface">;
 def emit_header_module : Flag<["-"], "emit-header-module">,
   HelpText<"Generate pre-compiled module file from a set of header files">;

 def compiler_options_dump : Flag<["-"], "compiler-options-dump">,
   HelpText<"Dump the compiler configuration options">;
 def print_dependency_directives_minimized_source : Flag<["-"],
   "print-dependency-directives-minimized-source">,
   HelpText<"Print the output of the dependency directives source minimizer">;
 }
 
 defm emit_llvm_uselists : BoolOption<"emit-llvm-uselists",
-  "CodeGenOpts.EmitLLVMUseLists", DefaultsToFalse,
+  CodeGenOpts<"EmitLLVMUseLists">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Preserve">,
   ResetBy<NegFlag, [], "Don't preserve">,
   BothFlags<[], " order of LLVM use-lists when serializing">>;
 
 def mt_migrate_directory : Separate<["-"], "mt-migrate-directory">,
   HelpText<"Directory for temporary files produced during ARC or ObjC migration">,
-  MarshallingInfoString<"FrontendOpts.MTMigrateDir">;
+  MarshallingInfoString<FrontendOpts<"MTMigrateDir">>;
 
 def arcmt_action_EQ : Joined<["-"], "arcmt-action=">, Flags<[CC1Option, NoDriverOption]>,
   HelpText<"The ARC migration action to take">, Values<"check,modify,migrate">,
   NormalizedValuesScope<"FrontendOptions">,
   NormalizedValues<["ARCMT_Check", "ARCMT_Modify", "ARCMT_Migrate"]>,
-  MarshallingInfoString<"FrontendOpts.ARCMTAction", "ARCMT_None">,
+  MarshallingInfoString<FrontendOpts<"ARCMTAction">, "ARCMT_None">,
   AutoNormalizeEnum;
 
 def opt_record_file : Separate<["-"], "opt-record-file">,
   HelpText<"File name to use for YAML optimization record output">,
-  MarshallingInfoString<"CodeGenOpts.OptRecordFile">;
+  MarshallingInfoString<CodeGenOpts<"OptRecordFile">>;
 def opt_record_passes : Separate<["-"], "opt-record-passes">,
   HelpText<"Only record remark information for passes whose names match the given regular expression">;
 def opt_record_format : Separate<["-"], "opt-record-format">,
   HelpText<"The format used for serializing remarks (default: YAML)">;
 
 def print_stats : Flag<["-"], "print-stats">,
   HelpText<"Print performance metrics and statistics">,
-  MarshallingInfoFlag<"FrontendOpts.ShowStats">;
+  MarshallingInfoFlag<FrontendOpts<"ShowStats">>;
 def stats_file : Joined<["-"], "stats-file=">,
   HelpText<"Filename to write statistics to">,
-  MarshallingInfoString<"FrontendOpts.StatsFile">;
+  MarshallingInfoString<FrontendOpts<"StatsFile">>;
 def fdump_record_layouts : Flag<["-"], "fdump-record-layouts">,
   HelpText<"Dump record layout information">;
 def fdump_record_layouts_simple : Flag<["-"], "fdump-record-layouts-simple">,
   HelpText<"Dump record layout information in a simple form used for testing">,
-  MarshallingInfoFlag<"LangOpts->DumpRecordLayoutsSimple">;
+  MarshallingInfoFlag<LangOpts<"DumpRecordLayoutsSimple">>;
 def fix_what_you_can : Flag<["-"], "fix-what-you-can">,
   HelpText<"Apply fix-it advice even in the presence of unfixable errors">,
-  MarshallingInfoFlag<"FrontendOpts.FixWhatYouCan">;
+  MarshallingInfoFlag<FrontendOpts<"FixWhatYouCan">>;
 def fix_only_warnings : Flag<["-"], "fix-only-warnings">,
   HelpText<"Apply fix-it advice only for warnings, not errors">,
-  MarshallingInfoFlag<"FrontendOpts.FixOnlyWarnings">;
+  MarshallingInfoFlag<FrontendOpts<"FixOnlyWarnings">>;
 def fixit_recompile : Flag<["-"], "fixit-recompile">,
   HelpText<"Apply fix-it changes and recompile">,
-  MarshallingInfoFlag<"FrontendOpts.FixAndRecompile">;
+  MarshallingInfoFlag<FrontendOpts<"FixAndRecompile">>;
 def fixit_to_temp : Flag<["-"], "fixit-to-temporary">,
   HelpText<"Apply fix-it changes to temporary files">,
-  MarshallingInfoFlag<"FrontendOpts.FixToTemporaries">;
+  MarshallingInfoFlag<FrontendOpts<"FixToTemporaries">>;
 
 def foverride_record_layout_EQ : Joined<["-"], "foverride-record-layout=">,
   HelpText<"Override record layouts with those in the given file">,
-  MarshallingInfoString<"FrontendOpts.OverrideRecordLayoutsFile">;
+  MarshallingInfoString<FrontendOpts<"OverrideRecordLayoutsFile">>;
 def pch_through_header_EQ : Joined<["-"], "pch-through-header=">,
   HelpText<"Stop PCH generation after including this file.  When using a PCH, "
            "skip tokens until after this file is included.">,
-  MarshallingInfoString<"PreprocessorOpts->PCHThroughHeader">;
+  MarshallingInfoString<PreprocessorOpts<"PCHThroughHeader">>;
 def pch_through_hdrstop_create : Flag<["-"], "pch-through-hdrstop-create">,
   HelpText<"When creating a PCH, stop PCH generation after #pragma hdrstop.">,
-  MarshallingInfoFlag<"PreprocessorOpts->PCHWithHdrStopCreate">;
+  MarshallingInfoFlag<PreprocessorOpts<"PCHWithHdrStopCreate">>;
 def pch_through_hdrstop_use : Flag<["-"], "pch-through-hdrstop-use">,
   HelpText<"When using a PCH, skip tokens until after a #pragma hdrstop.">;
 def fno_pch_timestamp : Flag<["-"], "fno-pch-timestamp">,
   HelpText<"Disable inclusion of timestamp in precompiled headers">,
-  MarshallingInfoNegativeFlag<"FrontendOpts.IncludeTimestamps">;
+  MarshallingInfoNegativeFlag<FrontendOpts<"IncludeTimestamps">>;
 def building_pch_with_obj : Flag<["-"], "building-pch-with-obj">,
   HelpText<"This compilation is part of building a PCH with corresponding object file.">,
-  MarshallingInfoFlag<"LangOpts->BuildingPCHWithObjectFile">;
+  MarshallingInfoFlag<LangOpts<"BuildingPCHWithObjectFile">>;
 
 def aligned_alloc_unavailable : Flag<["-"], "faligned-alloc-unavailable">,
   HelpText<"Aligned allocation/deallocation functions are unavailable">;
 
 //===----------------------------------------------------------------------===//
 // Language Options
 //===----------------------------------------------------------------------===//
 
 let Flags = [CC1Option, CC1AsOption, NoDriverOption] in {
 
 def version : Flag<["-"], "version">,
   HelpText<"Print the compiler version">,
-  MarshallingInfoFlag<"FrontendOpts.ShowVersion">;
+  MarshallingInfoFlag<FrontendOpts<"ShowVersion">>;
 def main_file_name : Separate<["-"], "main-file-name">,
   HelpText<"Main file name to use for debug info and source if missing">,
-  MarshallingInfoString<"CodeGenOpts.MainFileName">;
+  MarshallingInfoString<CodeGenOpts<"MainFileName">>;
 def split_dwarf_output : Separate<["-"], "split-dwarf-output">,
   HelpText<"File name to use for split dwarf debug info output">,
-  MarshallingInfoString<"CodeGenOpts.SplitDwarfOutput">;
+  MarshallingInfoString<CodeGenOpts<"SplitDwarfOutput">>;
 
 }
 
 def fblocks_runtime_optional : Flag<["-"], "fblocks-runtime-optional">,
   HelpText<"Weakly link in the blocks runtime">,
-  MarshallingInfoFlag<"LangOpts->BlocksRuntimeOptional">;
+  MarshallingInfoFlag<LangOpts<"BlocksRuntimeOptional">>;
 def fexternc_nounwind : Flag<["-"], "fexternc-nounwind">,
   HelpText<"Assume all functions with C linkage do not unwind">,
-  MarshallingInfoFlag<"LangOpts->ExternCNoUnwind">;
+  MarshallingInfoFlag<LangOpts<"ExternCNoUnwind">>;
 def split_dwarf_file : Separate<["-"], "split-dwarf-file">,
   HelpText<"Name of the split dwarf debug info file to encode in the object file">,
-  MarshallingInfoString<"CodeGenOpts.SplitDwarfFile">;
+  MarshallingInfoString<CodeGenOpts<"SplitDwarfFile">>;
 def fno_wchar : Flag<["-"], "fno-wchar">,
   HelpText<"Disable C++ builtin type wchar_t">;
 def fconstant_string_class : Separate<["-"], "fconstant-string-class">,
   MetaVarName<"<class name>">,
   HelpText<"Specify the class to use for constant Objective-C string objects.">,
-  MarshallingInfoString<"LangOpts->ObjCConstantStringClass">;
+  MarshallingInfoString<LangOpts<"ObjCConstantStringClass">>;
 def fobjc_arc_cxxlib_EQ : Joined<["-"], "fobjc-arc-cxxlib=">,
   HelpText<"Objective-C++ Automatic Reference Counting standard library kind">, Values<"libc++,libstdc++,none">,
   NormalizedValues<["ARCXX_libcxx", "ARCXX_libstdcxx", "ARCXX_nolib"]>,
-  MarshallingInfoString<"PreprocessorOpts->ObjCXXARCStandardLibrary", "ARCXX_nolib">, AutoNormalizeEnum;
+  MarshallingInfoString<PreprocessorOpts<"ObjCXXARCStandardLibrary">, "ARCXX_nolib">, AutoNormalizeEnum;
 def fobjc_runtime_has_weak : Flag<["-"], "fobjc-runtime-has-weak">,
   HelpText<"The target Objective-C runtime supports ARC weak operations">;
 def fobjc_dispatch_method_EQ : Joined<["-"], "fobjc-dispatch-method=">,
   HelpText<"Objective-C dispatch method to use">, Values<"legacy,non-legacy,mixed">,
   NormalizedValuesScope<"CodeGenOptions">, NormalizedValues<["Legacy", "NonLegacy", "Mixed"]>,
-  MarshallingInfoString<"CodeGenOpts.ObjCDispatchMethod", "Legacy">, AutoNormalizeEnum;
+  MarshallingInfoString<CodeGenOpts<"ObjCDispatchMethod">, "Legacy">, AutoNormalizeEnum;
 def disable_objc_default_synthesize_properties : Flag<["-"], "disable-objc-default-synthesize-properties">,
   HelpText<"disable the default synthesis of Objective-C properties">,
-  MarshallingInfoNegativeFlag<"LangOpts->ObjCDefaultSynthProperties">;
+  MarshallingInfoNegativeFlag<LangOpts<"ObjCDefaultSynthProperties">>;
 def fencode_extended_block_signature : Flag<["-"], "fencode-extended-block-signature">,
   HelpText<"enable extended encoding of block type signature">,
-  MarshallingInfoFlag<"LangOpts->EncodeExtendedBlockSig">;
+  MarshallingInfoFlag<LangOpts<"EncodeExtendedBlockSig">>;
 def function_alignment : Separate<["-"], "function-alignment">,
     HelpText<"default alignment for functions">,
-    MarshallingInfoStringInt<"LangOpts->FunctionAlignment">;
+    MarshallingInfoStringInt<LangOpts<"FunctionAlignment">>;
 def pic_level : Separate<["-"], "pic-level">,
   HelpText<"Value for __PIC__">;
 def pic_is_pie : Flag<["-"], "pic-is-pie">,
   HelpText<"File is for a position independent executable">,
-  MarshallingInfoFlag<"LangOpts->PIE">;
+  MarshallingInfoFlag<LangOpts<"PIE">>;
 def fhalf_no_semantic_interposition : Flag<["-"], "fhalf-no-semantic-interposition">,
   HelpText<"Like -fno-semantic-interposition but don't use local aliases">,
-  MarshallingInfoFlag<"LangOpts->HalfNoSemanticInterposition">;
+  MarshallingInfoFlag<LangOpts<"HalfNoSemanticInterposition">>;
 def fno_validate_pch : Flag<["-"], "fno-validate-pch">,
   HelpText<"Disable validation of precompiled headers">,
-  MarshallingInfoFlag<"PreprocessorOpts->DisablePCHValidation">;
+  MarshallingInfoFlag<PreprocessorOpts<"DisablePCHValidation">>;
 def fallow_pch_with_errors : Flag<["-"], "fallow-pch-with-compiler-errors">,
   HelpText<"Accept a PCH file that was created with compiler errors">;
 def fallow_pcm_with_errors : Flag<["-"], "fallow-pcm-with-compiler-errors">,
   HelpText<"Accept a PCM file that was created with compiler errors">;
 def dump_deserialized_pch_decls : Flag<["-"], "dump-deserialized-decls">,
   HelpText<"Dump declarations that are deserialized from PCH, for testing">,
-  MarshallingInfoFlag<"PreprocessorOpts->DumpDeserializedPCHDecls">;
+  MarshallingInfoFlag<PreprocessorOpts<"DumpDeserializedPCHDecls">>;
 def error_on_deserialized_pch_decl : Separate<["-"], "error-on-deserialized-decl">,
   HelpText<"Emit error if a specific declaration is deserialized from PCH, for testing">;
 def error_on_deserialized_pch_decl_EQ : Joined<["-"], "error-on-deserialized-decl=">,
   Alias<error_on_deserialized_pch_decl>;
 def static_define : Flag<["-"], "static-define">,
   HelpText<"Should __STATIC__ be defined">,
-  MarshallingInfoFlag<"LangOpts->Static">;
+  MarshallingInfoFlag<LangOpts<"Static">>;
 def stack_protector : Separate<["-"], "stack-protector">,
   HelpText<"Enable stack protectors">, Values<"0,1,2,3">,
   NormalizedValuesScope<"LangOptions">,
   NormalizedValues<["SSPOff", "SSPOn", "SSPStrong", "SSPReq"]>,
-  MarshallingInfoString<"LangOpts->StackProtector", "SSPOff">, AutoNormalizeEnum;
+  MarshallingInfoString<LangOpts<"StackProtector">, "SSPOff">, AutoNormalizeEnum;
 def stack_protector_buffer_size : Separate<["-"], "stack-protector-buffer-size">,
   HelpText<"Lower bound for a buffer to be considered for stack protection">,
-  MarshallingInfoStringInt<"CodeGenOpts.SSPBufferSize", "8">;
+  MarshallingInfoStringInt<CodeGenOpts<"SSPBufferSize">, "8">;
 // FIXME: diagnose if target does not support protected visibility
 // Good place for this is CompilerInvocation::fixupInvocation. Do the same for parseVisibility.
 def fvisibility : Separate<["-"], "fvisibility">,
   HelpText<"Default type and symbol visibility">, Values<"default,hidden,internal,protected">,
   NormalizedValues<["DefaultVisibility", "HiddenVisibility", "HiddenVisibility", "ProtectedVisibility"]>,
-  MarshallingInfoString<"LangOpts->ValueVisibilityMode", "DefaultVisibility">, AutoNormalizeEnum;
+  MarshallingInfoString<LangOpts<"ValueVisibilityMode">, "DefaultVisibility">, AutoNormalizeEnum;
 def ftype_visibility : Separate<["-"], "ftype-visibility">,
   HelpText<"Default type visibility">;
 def fapply_global_visibility_to_externs : Flag<["-"], "fapply-global-visibility-to-externs">,
   HelpText<"Apply global symbol visibility to external declarations without an explicit visibility">,
-  MarshallingInfoFlag<"LangOpts->SetVisibilityForExternDecls">;
+  MarshallingInfoFlag<LangOpts<"SetVisibilityForExternDecls">>;
 def ftemplate_depth : Separate<["-"], "ftemplate-depth">,
   HelpText<"Maximum depth of recursive template instantiation">,
-  MarshallingInfoStringInt<"LangOpts->InstantiationDepth", "1024">;
+  MarshallingInfoStringInt<LangOpts<"InstantiationDepth">, "1024">;
 def foperator_arrow_depth : Separate<["-"], "foperator-arrow-depth">,
   HelpText<"Maximum number of 'operator->'s to call for a member access">,
-  MarshallingInfoStringInt<"LangOpts->ArrowDepth", "256">;
+  MarshallingInfoStringInt<LangOpts<"ArrowDepth">, "256">;
 def fconstexpr_depth : Separate<["-"], "fconstexpr-depth">,
   HelpText<"Maximum depth of recursive constexpr function calls">,
-  MarshallingInfoStringInt<"LangOpts->ConstexprCallDepth", "512">;
+  MarshallingInfoStringInt<LangOpts<"ConstexprCallDepth">, "512">;
 def fconstexpr_steps : Separate<["-"], "fconstexpr-steps">,
   HelpText<"Maximum number of steps in constexpr function evaluation">,
-  MarshallingInfoStringInt<"LangOpts->ConstexprStepLimit", "1048576">;
+  MarshallingInfoStringInt<LangOpts<"ConstexprStepLimit">, "1048576">;
 def fbracket_depth : Separate<["-"], "fbracket-depth">,
   HelpText<"Maximum nesting level for parentheses, brackets, and braces">,
-  MarshallingInfoStringInt<"LangOpts->BracketDepth", "256">;
+  MarshallingInfoStringInt<LangOpts<"BracketDepth">, "256">;
 defm const_strings : BoolCC1Option<"const-strings",
-  "LangOpts->ConstStrings", DefaultsToFalse,
+  LangOpts<"ConstStrings">, DefaultsToFalse,
   ChangedBy<PosFlag, [], "Use">, ResetBy<NegFlag, [], "Don't use">,
   BothFlags<[], " a const qualified type for string literals in C and ObjC">, "f">;
 def fno_bitfield_type_align : Flag<["-"], "fno-bitfield-type-align">,
   HelpText<"Ignore bit-field types when aligning structures">,
-  MarshallingInfoFlag<"LangOpts->NoBitFieldTypeAlign">;
+  MarshallingInfoFlag<LangOpts<"NoBitFieldTypeAlign">>;
 def ffake_address_space_map : Flag<["-"], "ffake-address-space-map">,
   HelpText<"Use a fake address space map; OpenCL testing purposes only">,
-  MarshallingInfoFlag<"LangOpts->FakeAddressSpaceMap">;
+  MarshallingInfoFlag<LangOpts<"FakeAddressSpaceMap">>;
 def faddress_space_map_mangling_EQ : Joined<["-"], "faddress-space-map-mangling=">, MetaVarName<"<yes|no|target>">,
   HelpText<"Set the mode for address space map based mangling; OpenCL testing purposes only">,
   Values<"target,no,yes">, NormalizedValuesScope<"LangOptions">,
   NormalizedValues<["ASMM_Target", "ASMM_Off", "ASMM_On"]>,
-  MarshallingInfoString<"LangOpts->AddressSpaceMapMangling", "ASMM_Target">, AutoNormalizeEnum;
+  MarshallingInfoString<LangOpts<"AddressSpaceMapMangling">, "ASMM_Target">, AutoNormalizeEnum;
 def funknown_anytype : Flag<["-"], "funknown-anytype">,
   HelpText<"Enable parser support for the __unknown_anytype type; for testing purposes only">,
-  MarshallingInfoFlag<"LangOpts->ParseUnknownAnytype">;
+  MarshallingInfoFlag<LangOpts<"ParseUnknownAnytype">>;
 def fdebugger_support : Flag<["-"], "fdebugger-support">,
   HelpText<"Enable special debugger support behavior">,
-  MarshallingInfoFlag<"LangOpts->DebuggerSupport">;
+  MarshallingInfoFlag<LangOpts<"DebuggerSupport">>;
 def fdebugger_cast_result_to_id : Flag<["-"], "fdebugger-cast-result-to-id">,
   HelpText<"Enable casting unknown expression results to id">,
-  MarshallingInfoFlag<"LangOpts->DebuggerCastResultToId">;
+  MarshallingInfoFlag<LangOpts<"DebuggerCastResultToId">>;
 def fdebugger_objc_literal : Flag<["-"], "fdebugger-objc-literal">,
   HelpText<"Enable special debugger support for Objective-C subscripting and literals">,
-  MarshallingInfoFlag<"LangOpts->DebuggerObjCLiteral">;
+  MarshallingInfoFlag<LangOpts<"DebuggerObjCLiteral">>;
 def fdeprecated_macro : Flag<["-"], "fdeprecated-macro">,
   HelpText<"Defines the __DEPRECATED macro">;
 def fno_deprecated_macro : Flag<["-"], "fno-deprecated-macro">,
   HelpText<"Undefines the __DEPRECATED macro">;
 def fobjc_subscripting_legacy_runtime : Flag<["-"], "fobjc-subscripting-legacy-runtime">,
   HelpText<"Allow Objective-C array and dictionary subscripting in legacy runtime">;
 // TODO: Enforce values valid for MSVtorDispMode.
 def vtordisp_mode_EQ : Joined<["-"], "vtordisp-mode=">,
   HelpText<"Control vtordisp placement on win32 targets">,
-  MarshallingInfoStringInt<"LangOpts->VtorDispMode", "1">;
+  MarshallingInfoStringInt<LangOpts<"VtorDispMode">, "1">;
 def fnative_half_type: Flag<["-"], "fnative-half-type">,
   HelpText<"Use the native half type for __fp16 instead of promoting to float">;
 def fnative_half_arguments_and_returns : Flag<["-"], "fnative-half-arguments-and-returns">,
   HelpText<"Use the native __fp16 type for arguments and returns (and skip ABI-specific lowering)">;
 def fallow_half_arguments_and_returns : Flag<["-"], "fallow-half-arguments-and-returns">,
   HelpText<"Allow function arguments and returns of type half">;
 def fdefault_calling_conv_EQ : Joined<["-"], "fdefault-calling-conv=">,
   HelpText<"Set default calling convention">, Values<"cdecl,fastcall,stdcall,vectorcall,regcall">,
   NormalizedValuesScope<"LangOptions">,
   NormalizedValues<["DCC_CDecl", "DCC_FastCall", "DCC_StdCall", "DCC_VectorCall", "DCC_RegCall"]>,
-  MarshallingInfoString<"LangOpts->DefaultCallingConv", "DCC_None">, AutoNormalizeEnum;
+  MarshallingInfoString<LangOpts<"DefaultCallingConv">, "DCC_None">, AutoNormalizeEnum;
 def finclude_default_header : Flag<["-"], "finclude-default-header">,
   HelpText<"Include default header file for OpenCL">,
-  MarshallingInfoFlag<"LangOpts->IncludeDefaultHeader">;
+  MarshallingInfoFlag<LangOpts<"IncludeDefaultHeader">>;
 def fdeclare_opencl_builtins : Flag<["-"], "fdeclare-opencl-builtins">,
   HelpText<"Add OpenCL builtin function declarations (experimental)">,
-  MarshallingInfoFlag<"LangOpts->DeclareOpenCLBuiltins">;
+  MarshallingInfoFlag<LangOpts<"DeclareOpenCLBuiltins">>;
 def fpreserve_vec3_type : Flag<["-"], "fpreserve-vec3-type">,
   HelpText<"Preserve 3-component vector type">,
-  MarshallingInfoFlag<"CodeGenOpts.PreserveVec3Type">;
+  MarshallingInfoFlag<CodeGenOpts<"PreserveVec3Type">>;
 def fwchar_type_EQ : Joined<["-"], "fwchar-type=">,
   HelpText<"Select underlying type for wchar_t">, Values<"char,short,int">,
   NormalizedValues<["1", "2", "4"]>,
-  MarshallingInfoString<"LangOpts->WCharSize", "0">, AutoNormalizeEnum;
+  MarshallingInfoString<LangOpts<"WCharSize">, "0">, AutoNormalizeEnum;
 defm signed_wchar : BoolCC1Option<"signed-wchar",
-  "LangOpts->WCharIsSigned", DefaultsToTrue,
+  LangOpts<"WCharIsSigned">, DefaultsToTrue,
   ChangedBy<NegFlag, [], "Use an unsigned">, ResetBy<PosFlag, [], "Use a signed">,
   BothFlags<[], " type for wchar_t">, "f">;
 def fcompatibility_qualified_id_block_param_type_checking : Flag<["-"], "fcompatibility-qualified-id-block-type-checking">,
   HelpText<"Allow using blocks with parameters of more specific type than "
            "the type system guarantees when a parameter is qualified id">,
-  MarshallingInfoFlag<"LangOpts->CompatibilityQualifiedIdBlockParamTypeChecking">;
+  MarshallingInfoFlag<LangOpts<"CompatibilityQualifiedIdBlockParamTypeChecking">>;
 def fpass_by_value_is_noalias: Flag<["-"], "fpass-by-value-is-noalias">,
   HelpText<"Allows assuming by-value parameters do not alias any other value. "
            "Has no effect on non-trivially-copyable classes in C++.">, Group<f_Group>,
-  MarshallingInfoFlag<"CodeGenOpts.PassByValueIsNoAlias">;
+  MarshallingInfoFlag<CodeGenOpts<"PassByValueIsNoAlias">>;
 
 // FIXME: Remove these entirely once functionality/tests have been excised.
 def fobjc_gc_only : Flag<["-"], "fobjc-gc-only">, Group<f_Group>,
   HelpText<"Use GC exclusively for Objective-C related memory management">;
 def fobjc_gc : Flag<["-"], "fobjc-gc">, Group<f_Group>,
   HelpText<"Enable Objective-C garbage collection">;
 
 //===----------------------------------------------------------------------===//
 // Header Search Options
 //===----------------------------------------------------------------------===//
 
 def nostdsysteminc : Flag<["-"], "nostdsysteminc">,
   HelpText<"Disable standard system #include directories">,
-  MarshallingInfoNegativeFlag<"HeaderSearchOpts->UseStandardSystemIncludes">;
+  MarshallingInfoNegativeFlag<HeaderSearchOpts<"UseStandardSystemIncludes">>;
 def fdisable_module_hash : Flag<["-"], "fdisable-module-hash">,
   HelpText<"Disable the module hash">,
-  MarshallingInfoFlag<"HeaderSearchOpts->DisableModuleHash">;
+  MarshallingInfoFlag<HeaderSearchOpts<"DisableModuleHash">>;
 def fmodules_hash_content : Flag<["-"], "fmodules-hash-content">,
   HelpText<"Enable hashing the content of a module file">,
-  MarshallingInfoFlag<"HeaderSearchOpts->ModulesHashContent">;
+  MarshallingInfoFlag<HeaderSearchOpts<"ModulesHashContent">>;
 def fmodules_strict_context_hash : Flag<["-"], "fmodules-strict-context-hash">,
   HelpText<"Enable hashing of all compiler options that could impact the "
            "semantics of a module in an implicit build">,
-  MarshallingInfoFlag<"HeaderSearchOpts->ModulesStrictContextHash">;
+  MarshallingInfoFlag<HeaderSearchOpts<"ModulesStrictContextHash">>;
 def c_isystem : JoinedOrSeparate<["-"], "c-isystem">, MetaVarName<"<directory>">,
   HelpText<"Add directory to the C SYSTEM include search path">;
 def objc_isystem : JoinedOrSeparate<["-"], "objc-isystem">,
   MetaVarName<"<directory>">,
   HelpText<"Add directory to the ObjC SYSTEM include search path">;
 def objcxx_isystem : JoinedOrSeparate<["-"], "objcxx-isystem">,
   MetaVarName<"<directory>">,
   HelpText<"Add directory to the ObjC++ SYSTEM include search path">;

 
 def chain_include : Separate<["-"], "chain-include">, MetaVarName<"<file>">,
   HelpText<"Include and chain a header file after turning it into PCH">;
 def preamble_bytes_EQ : Joined<["-"], "preamble-bytes=">,
   HelpText<"Assume that the precompiled header is a precompiled preamble "
            "covering the first N bytes of the main file">;
 def detailed_preprocessing_record : Flag<["-"], "detailed-preprocessing-record">,
   HelpText<"include a detailed record of preprocessing actions">,
-  MarshallingInfoFlag<"PreprocessorOpts->DetailedRecord">;
+  MarshallingInfoFlag<PreprocessorOpts<"DetailedRecord">>;
 def setup_static_analyzer : Flag<["-"], "setup-static-analyzer">,
   HelpText<"Set up preprocessor for static analyzer (done automatically when static analyzer is run).">,
-  MarshallingInfoFlag<"PreprocessorOpts->SetUpStaticAnalyzer">;
+  MarshallingInfoFlag<PreprocessorOpts<"SetUpStaticAnalyzer">>;
 def disable_pragma_debug_crash : Flag<["-"], "disable-pragma-debug-crash">,
   HelpText<"Disable any #pragma clang __debug that can lead to crashing behavior. This is meant for testing.">,
-  MarshallingInfoFlag<"PreprocessorOpts->DisablePragmaDebugCrash">;
+  MarshallingInfoFlag<PreprocessorOpts<"DisablePragmaDebugCrash">>;
 
 //===----------------------------------------------------------------------===//
 // OpenCL Options
 //===----------------------------------------------------------------------===//
 
 def cl_ext_EQ : CommaJoined<["-"], "cl-ext=">,
   HelpText<"OpenCL only. Enable or disable OpenCL extensions. The argument is a comma-separated sequence of one or more extension names, each prefixed by '+' or '-'.">,
-  MarshallingInfoStringVector<"TargetOpts->OpenCLExtensionsAsWritten">;
+  MarshallingInfoStringVector<TargetOpts<"OpenCLExtensionsAsWritten">>;
 
 //===----------------------------------------------------------------------===//
 // CUDA Options
 //===----------------------------------------------------------------------===//
 
 def fcuda_is_device : Flag<["-"], "fcuda-is-device">,
   HelpText<"Generate code for CUDA device">,
-  MarshallingInfoFlag<"LangOpts->CUDAIsDevice">;
+  MarshallingInfoFlag<LangOpts<"CUDAIsDevice">>;
 def fcuda_include_gpubinary : Separate<["-"], "fcuda-include-gpubinary">,
   HelpText<"Incorporate CUDA device-side binary into host object file.">,
-  MarshallingInfoString<"CodeGenOpts.CudaGpuBinaryFileName">;
+  MarshallingInfoString<CodeGenOpts<"CudaGpuBinaryFileName">>;
 def fcuda_allow_variadic_functions : Flag<["-"], "fcuda-allow-variadic-functions">,
   HelpText<"Allow variadic functions in CUDA device code.">,
-  MarshallingInfoFlag<"LangOpts->CUDAAllowVariadicFunctions">;
+  MarshallingInfoFlag<LangOpts<"CUDAAllowVariadicFunctions">>;
 def fno_cuda_host_device_constexpr : Flag<["-"], "fno-cuda-host-device-constexpr">,
   HelpText<"Don't treat unattributed constexpr functions as __host__ __device__.">,
-  MarshallingInfoNegativeFlag<"LangOpts->CUDAHostDeviceConstexpr">;
+  MarshallingInfoNegativeFlag<LangOpts<"CUDAHostDeviceConstexpr">>;
 
 //===----------------------------------------------------------------------===//
 // OpenMP Options
 //===----------------------------------------------------------------------===//
 
 def fopenmp_is_device : Flag<["-"], "fopenmp-is-device">,
   HelpText<"Generate code only for an OpenMP target device.">;
 def fopenmp_host_ir_file_path : Separate<["-"], "fopenmp-host-ir-file-path">,

clang/lib/Frontend/CompilerInvocation.cpp

 //===- CompilerInvocation.cpp ---------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
                                 bool DefaultDiagColor) {
   Optional<DiagnosticsEngine> IgnoringDiags;
   if (!Diags) {
     IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(),
                           new IgnoringDiagConsumer());
     Diags = &*IgnoringDiags;
   }
 
+  // The key paths of diagnostic options defined in Options.td start with
+  // "DiagnosticOpts->". Let's provide the expected variable name and type.
+  DiagnosticOptions *DiagnosticOpts = &Opts;
   bool Success = true;
 
 #define DIAG_OPTION_WITH_MARSHALLING(                                          \
     PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM,        \
     HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH,   \
     DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER,     \
     MERGER, EXTRACTOR, TABLE_INDEX)                                            \
   PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, Success, ID, FLAGS, PARAM,       \
-                                SHOULD_PARSE, Opts.KEYPATH, DEFAULT_VALUE,     \
+                                SHOULD_PARSE, KEYPATH, DEFAULT_VALUE,          \
                                 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER,      \
                                 MERGER, TABLE_INDEX)
 #include "clang/Driver/Options.inc"
 #undef DIAG_OPTION_WITH_MARSHALLING
 
   llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes);
 
   if (Arg *A =
#define OPTION_WITH_MARSHALLING(                                               \
     HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH,   \
     DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER,     \
     MERGER, EXTRACTOR, TABLE_INDEX)                                            \
   GENERATE_OPTION_WITH_MARSHALLING(Args, SA, KIND, FLAGS, SPELLING,            \
                                    ALWAYS_EMIT, this->KEYPATH, DEFAULT_VALUE,  \
                                    IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, \
                                    EXTRACTOR, TABLE_INDEX)
 
-#define DIAG_OPTION_WITH_MARSHALLING(                                          \
-    PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM,        \
-    HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH,   \
-    DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER,     \
-    MERGER, EXTRACTOR, TABLE_INDEX)                                            \
-  GENERATE_OPTION_WITH_MARSHALLING(                                            \
-      Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT,                            \
-      this->DiagnosticOpts->KEYPATH, DEFAULT_VALUE, IMPLIED_CHECK,             \
-      IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX)
+#define DIAG_OPTION_WITH_MARSHALLING OPTION_WITH_MARSHALLING
 
 #include "clang/Driver/Options.inc"
 
 #undef DIAG_OPTION_WITH_MARSHALLING
 #undef OPTION_WITH_MARSHALLING
 #undef GENERATE_OPTION_WITH_MARSHALLING
 }
 

llvm/include/llvm/Option/OptParser.td

 class Group<OptionGroup group> { OptionGroup Group = group; }
 class HelpText<string text> { string HelpText = text; }
 class MetaVarName<string name> { string MetaVarName = name; }
 class Values<string value> { string Values = value; }
 class ValuesCode<code valuecode> { code ValuesCode = valuecode; }
 
 // Helpers for defining marshalling information.
 
+class KeyPathAndMacro<string key_path_prefix, string key_path_base,
+                      string macro_prefix = ""> {
+  code KeyPath = !strconcat(key_path_prefix, key_path_base);
+  code MacroPrefix = macro_prefix;
+}
+
+def EmptyKPM : KeyPathAndMacro<"", "">;
+
 class ImpliedByAnyOf<list<Option> options, code value = "true"> {
   code ImpliedCheck = !foldl("false", options, accumulator, option,
                              !strconcat(accumulator, " || ", option.KeyPath));
   code ImpliedValue = value;
 }
 
-class MarshallingInfo<code keypath, code defaultvalue> {
-  code KeyPath = keypath;
+class MarshallingInfo<KeyPathAndMacro kpm, code defaultvalue> {
+  code KeyPath = kpm.KeyPath;
+  code MacroPrefix = kpm.MacroPrefix;
   code DefaultValue = defaultvalue;
 }
 
-class MarshallingInfoString<code keypath, code defaultvalue="std::string()">
-  : MarshallingInfo<keypath, defaultvalue> {
+class MarshallingInfoString<KeyPathAndMacro kpm, code defaultvalue="std::string()">
+  : MarshallingInfo<kpm, defaultvalue> {
   code Normalizer = "normalizeString";
   code Denormalizer = "denormalizeString";
 }
 
-class MarshallingInfoStringInt<code keypath, code defaultvalue="0", code type="unsigned">
-  : MarshallingInfo<keypath, defaultvalue> {
+class MarshallingInfoStringInt<KeyPathAndMacro kpm, code defaultvalue="0", code type="unsigned">
+  : MarshallingInfo<kpm, defaultvalue> {
   code Normalizer = "normalizeStringIntegral<"#type#">";
   code Denormalizer = "denormalizeString";
 }
 
-class MarshallingInfoStringVector<code keypath>
-  : MarshallingInfo<keypath, "std::vector<std::string>({})"> {
+class MarshallingInfoStringVector<KeyPathAndMacro kpm>
+  : MarshallingInfo<kpm, "std::vector<std::string>({})"> {
   code Normalizer = "normalizeStringVector";
   code Denormalizer = "denormalizeStringVector";
 }
 
-class MarshallingInfoFlag<code keypath, code defaultvalue = "false">
-  : MarshallingInfo<keypath, defaultvalue> {
+class MarshallingInfoFlag<KeyPathAndMacro kpm, code defaultvalue = "false">
+  : MarshallingInfo<kpm, defaultvalue> {
   code Normalizer = "normalizeSimpleFlag";
   code Denormalizer = "denormalizeSimpleFlag";
 }
 
-class MarshallingInfoNegativeFlag<code keypath, code defaultvalue = "true">
-  : MarshallingInfo<keypath, defaultvalue> {
+class MarshallingInfoNegativeFlag<KeyPathAndMacro kpm, code defaultvalue = "true">
+  : MarshallingInfo<kpm, defaultvalue> {
   code Normalizer = "normalizeSimpleNegativeFlag";
   code Denormalizer = "denormalizeSimpleFlag";
 }
 
-class MarshallingInfoBitfieldFlag<code keypath, code value>
-  : MarshallingInfoFlag<keypath, "0u"> {
+class MarshallingInfoBitfieldFlag<KeyPathAndMacro kpm, code value>
+  : MarshallingInfoFlag<kpm, "0u"> {
   code Normalizer = "makeFlagToValueNormalizer("#value#")";
   code ValueMerger = "mergeMaskValue";
   code ValueExtractor = "(extractMaskValue<unsigned, decltype("#value#"), "#value#">)";
 }
 
 // Marshalling info for booleans. Applied to the flag setting keypath to false.
-class MarshallingInfoBooleanFlag<code keypath, code defaultvalue, code value, code name,
+class MarshallingInfoBooleanFlag<KeyPathAndMacro kpm, code defaultvalue, code value, code name,
                                  code other_value, code other_name>
-  : MarshallingInfoFlag<keypath, defaultvalue> {
+  : MarshallingInfoFlag<kpm, defaultvalue> {
   code Normalizer = "makeBooleanOptionNormalizer("#value#", "#other_value#", OPT_"#other_name#")";
   code Denormalizer = "makeBooleanOptionDenormalizer("#value#")";
 }
 
 // Mixins for additional marshalling attributes.
 
 class ShouldParseIf<code condition> { code ShouldParse = condition; }
 class AlwaysEmit { bit ShouldAlwaysEmit = true; }

llvm/unittests/Option/OptionMarshallingTest.cpp

 //===- unittest/Support/OptionMarshallingTest.cpp - OptParserEmitter tests ===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 

 TEST(OptionMarshalling, EmittedOrderSameAsDefinitionOrder) {
   ASSERT_STREQ(MarshallingTable[0].Name, "marshalled-flag-d");
   ASSERT_STREQ(MarshallingTable[1].Name, "marshalled-flag-c");
   ASSERT_STREQ(MarshallingTable[2].Name, "marshalled-flag-b");
   ASSERT_STREQ(MarshallingTable[3].Name, "marshalled-flag-a");
 }
 
 TEST(OptionMarshalling, EmittedSpecifiedKeyPath) {
-  ASSERT_STREQ(MarshallingTable[0].KeyPath, "MarshalledFlagD");
-  ASSERT_STREQ(MarshallingTable[1].KeyPath, "MarshalledFlagC");
-  ASSERT_STREQ(MarshallingTable[2].KeyPath, "MarshalledFlagB");
-  ASSERT_STREQ(MarshallingTable[3].KeyPath, "MarshalledFlagA");
+  ASSERT_STREQ(MarshallingTable[0].KeyPath, "X->MarshalledFlagD");
+  ASSERT_STREQ(MarshallingTable[1].KeyPath, "X->MarshalledFlagC");
+  ASSERT_STREQ(MarshallingTable[2].KeyPath, "X->MarshalledFlagB");
+  ASSERT_STREQ(MarshallingTable[3].KeyPath, "X->MarshalledFlagA");
 }
 
 TEST(OptionMarshalling, ImpliedCheckContainsDisjunctionOfKeypaths) {
   ASSERT_STREQ(MarshallingTable[0].ImpliedCheck, "false");
 
-  ASSERT_STREQ(MarshallingTable[1].ImpliedCheck, "false || MarshalledFlagD");
+  ASSERT_STREQ(MarshallingTable[1].ImpliedCheck, "false || X->MarshalledFlagD");
   ASSERT_STREQ(MarshallingTable[1].ImpliedValue, "true");
 
-  ASSERT_STREQ(MarshallingTable[2].ImpliedCheck, "false || MarshalledFlagD");
+  ASSERT_STREQ(MarshallingTable[2].ImpliedCheck, "false || X->MarshalledFlagD");
   ASSERT_STREQ(MarshallingTable[2].ImpliedValue, "true");
 
   ASSERT_STREQ(MarshallingTable[3].ImpliedCheck,
-               "false || MarshalledFlagC || MarshalledFlagB");
+               "false || X->MarshalledFlagC || X->MarshalledFlagB");
   ASSERT_STREQ(MarshallingTable[3].ImpliedValue, "true");
 }

llvm/unittests/Option/Opts.td

 
 def Glorrmp_eq : Flag<["--"], "glorrmp=">;
 
 def Blurmpq : Flag<["--"], "blurmp">;
 def Blurmpq_eq : Flag<["--"], "blurmp=">;
 
 def DashDash : Option<["--"], "", KIND_REMAINING_ARGS>;
 
+class XOpts<string base> : KeyPathAndMacro<"X->", base> {}
+
 def marshalled_flag_d : Flag<["-"], "marshalled-flag-d">,
-  MarshallingInfoFlag<"MarshalledFlagD">;
+  MarshallingInfoFlag<XOpts<"MarshalledFlagD">>;
 def marshalled_flag_c : Flag<["-"], "marshalled-flag-c">,
-  MarshallingInfoFlag<"MarshalledFlagC">,
+  MarshallingInfoFlag<XOpts<"MarshalledFlagC">>,
   ImpliedByAnyOf<[marshalled_flag_d], "true">;
 def marshalled_flag_b : Flag<["-"], "marshalled-flag-b">,
-  MarshallingInfoFlag<"MarshalledFlagB">,
+  MarshallingInfoFlag<XOpts<"MarshalledFlagB">>,
   ImpliedByAnyOf<[marshalled_flag_d], "true">;
 def marshalled_flag_a : Flag<["-"], "marshalled-flag-a">,
-  MarshallingInfoFlag<"MarshalledFlagA">,
+  MarshallingInfoFlag<XOpts<"MarshalledFlagA">>,
   ImpliedByAnyOf<[marshalled_flag_c, marshalled_flag_b]>;