[all-commits] [llvm/llvm-project] 7a0584: [libc++] Fix backdeployment annotations for std::f...

[Louis Dionne via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7a0584fe3fd6b342d56251e92acc437961c8d29d
      https://github.com/llvm/llvm-project/commit/7a0584fe3fd6b342d56251e92acc437961c8d29d
  Author: Louis Dionne <ldionne.2 at gmail.com>
  Date:   2021-11-24 (Wed, 24 Nov 2021)

  Changed paths:
    M libcxx/include/filesystem
    M libcxx/test/libcxx/iterators/iterator.requirements/iterator.assoc.types/iterator.traits/legacy_bidirectional_iterator.compile.pass.cpp
    M libcxx/test/libcxx/iterators/iterator.requirements/iterator.assoc.types/iterator.traits/legacy_forward_iterator.compile.pass.cpp
    M libcxx/test/libcxx/iterators/iterator.requirements/iterator.assoc.types/iterator.traits/legacy_input_iterator.compile.pass.cpp
    M libcxx/test/libcxx/iterators/iterator.requirements/iterator.assoc.types/iterator.traits/legacy_iterator.compile.pass.cpp
    M libcxx/test/libcxx/iterators/iterator.requirements/iterator.assoc.types/iterator.traits/legacy_random_access_iterator.compile.pass.cpp
    M libcxx/test/std/iterators/iterator.primitives/iterator.traits/cxx20_iterator_traits.compile.pass.cpp

  Log Message:
  -----------
  [libc++] Fix backdeployment annotations for std::filesystem

In 1fa27f2a10e8, we made <filesystem>'s iterator types model concepts
from <ranges>, but we forgot to add the appropriate availability
annotations. This broke back-deployment to platforms that don't have
<filesystem> for which we have availability annotations.

For some reason, this wasn't caught by our back-deployment CI.
I believe this is due to the fact that we use a slightly older
compiler in the CI, and perhaps that compiler does not honour
our `#pragma clang attribute push` properly.

Differential Revision: https://reviews.llvm.org/D114456