ldionne added inline comments.
================
Comment at: clang/include/clang/Driver/Options.td:1186
-defm unstable : BoolFOption<"unstable",
- LangOpts<"Unstable">, DefaultFalse,
- PosFlag<SetTrue, [CC1Option, CoreOption], "Enable unstable and experimental
features">,
+defm experimental_library : BoolFOption<"experimental-library",
+ LangOpts<"ExperimentalLibrary">, DefaultFalse,
----------------
MaskRay wrote:
> This can be simplified with `OptInCC1FFlag` (both driver/CC1 for the pos
> form, but driver-only for the neg form).
> You'll need to set CoreOption to make the option available to clang-cl.
I was looking for documentation on `OptInCC1FFlag`, and I found:
```
// A boolean option which is opt-in in CC1. The positive option exists in CC1
and
// Args.hasArg(OPT_ffoo) can be used to check that the flag is enabled.
// This is useful if the option is usually disabled.
// Use this only when the option cannot be declared via BoolFOption.
multiclass OptInCC1FFlag<string name, string pos_prefix, string neg_prefix="",
```
It says to use `BoolFOption` is we can. So should I stick with `BoolFOption`?
================
Comment at: clang/lib/Driver/ToolChain.cpp:1016
CmdArgs.push_back("-lc++");
+ if (Args.hasArg(options::OPT_fexperimental_library))
+ CmdArgs.push_back("-lc++experimental");
----------------
MaskRay wrote:
> There may be an archive ordering problem.
I'm not sure I follow -- what problem are you concerned about?
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D121141/new/
https://reviews.llvm.org/D121141
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