[all-commits] [llvm/llvm-project] fd4cc8: [libc++] Allow backdeployment CI to run on newer m...

[Louis Dionne via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: fd4cc870225eabdf2885585df55550ad011fcfc5
      https://github.com/llvm/llvm-project/commit/fd4cc870225eabdf2885585df55550ad011fcfc5
  Author: Louis Dionne <ldionne.2 at gmail.com>
  Date:   2022-02-15 (Tue, 15 Feb 2022)

  Changed paths:
    M libcxx/include/optional
    M libcxx/test/std/utilities/optional/optional.monadic/and_then.pass.cpp
    M libcxx/test/std/utilities/optional/optional.monadic/transform.pass.cpp
    M libcxx/utils/ci/buildkite-pipeline.yml

  Log Message:
  -----------
  [libc++] Allow backdeployment CI to run on newer macOS

This should work now that we are using a matching libunwind.dylib when
we run the tests in back-deployment scenarios. The only restriction we
have now is to run on macOS x86_64, since that's what the old dylibs
were compiled for. This should allow us to move to newer AppleClangs
in the CI.

As a fly-by, fix missing availability annotations on optional's
monadic operations.

Differential Revision: https://reviews.llvm.org/D119840