[PATCH] D133887: [Clang] Support label at end of compound statement

[Evgeny Shulgin via Phabricator via cfe-commits]

Izaron added a comment.

> It should definitely be without warning in C23 mode and give an extension warning in earlier modes.

@aaron.ballman we have this extension warning for pre-C++23:

  def ext_label_end_of_compound_statement : ExtWarn<
    "label at end of compound statement is a C++2b extension">,
     InGroup<CXX2b>;

Should I add a new warning for pre-C23? We could have two warnings for each language:

  ext_cxx_label_end_of_compound_statement
  ext_c_label_end_of_compound_statement


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D133887/new/

https://reviews.llvm.org/D133887