[all-commits] [llvm/llvm-project] cc308f: [clang] Support __typeof_unqual__ in all C modes (...

[Nathan Chancellor via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: cc308f60d41744b5920ec2e2e5b25e1273c8704b
      https://github.com/llvm/llvm-project/commit/cc308f60d41744b5920ec2e2e5b25e1273c8704b
  Author: Nathan Chancellor <nathan at kernel.org>
  Date:   2024-04-03 (Wed, 03 Apr 2024)

  Changed paths:
    M clang/docs/ReleaseNotes.rst
    M clang/include/clang/Basic/TokenKinds.def
    M clang/test/Parser/c2x-typeof-ext-warns.c
    A clang/test/SemaCXX/typeof_unqual.cpp

  Log Message:
  -----------
  [clang] Support __typeof_unqual__ in all C modes (#87392)

GCC has added __typeof_unqual__ to allow typeof_unqual to be used in all
C modes (not just C23 and newer), similar to __typeof__ and typeof.

https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=607d9d50ee44163cee621cd991600acaf78c2fee

The Linux kernel would like to start using __typeof_unqual__ to strip
type qualifiers such as address spaces from inputs to macros but cannot
switch to C23 due to compiler version requirements.

Match GCC and allow __typeof_unqual__ in all C modes.

Closes: https://github.com/llvm/llvm-project/issues/76423
Link: https://lore.kernel.org/CAFULd4YG21NdF_qNVBGDtXO6xnaYFeRPvKicB=gpgUUqYE=4jw@mail.gmail.com/



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