[all-commits] [llvm/llvm-project] 8a334a: [clang] Remove the deprecated flag `-frelaxed-temp...

[Matheus Izvekov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8a334af417ff2ef49e0bc74f9421b4f3aa479805
      https://github.com/llvm/llvm-project/commit/8a334af417ff2ef49e0bc74f9421b4f3aa479805
  Author: Matheus Izvekov <mizvekov at gmail.com>
  Date:   2025-01-29 (Wed, 29 Jan 2025)

  Changed paths:
    M clang/docs/ReleaseNotes.rst
    M clang/include/clang/Basic/DiagnosticDriverKinds.td
    M clang/include/clang/Basic/DiagnosticGroups.td
    M clang/include/clang/Basic/LangOptions.def
    M clang/include/clang/Driver/Options.td
    M clang/include/clang/Sema/Sema.h
    M clang/lib/Driver/ToolChains/Clang.cpp
    M clang/lib/Frontend/InitPreprocessor.cpp
    M clang/lib/Sema/SemaTemplate.cpp
    R clang/test/Driver/frelaxed-template-template-args.cpp
    M clang/test/Lexer/cxx-features.cpp
    M clang/test/SemaTemplate/cwg2398.cpp
    M clang/www/cxx_status.html

  Log Message:
  -----------
  [clang] Remove the deprecated flag `-frelaxed-template-template-args`. (#111894)

This flag has been deprecated since Clang 19, having been the default
since then.

It has remained because its negation was still useful to work around
backwards compatibility breaking changes from P0522.

However, in Clang 20 we have landed various changes which implemented
P3310R2 and beyond, which solve almost all of the expected issues, the
known remaining few being a bit obscure.

So this change removes the flag completely and all of its implementation
and support code.

Hopefully any remaining users can just stop using the flag. If there are
still important issues remaining, this removal will also shake the tree
and help us know.



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