[all-commits] [llvm/llvm-project] fc4bff: Update atomic feature macros, synopsis, signatures...

[ogiroux via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: fc4bff0cd37fa84ee74e6dff7170b643df3ffa42
      https://github.com/llvm/llvm-project/commit/fc4bff0cd37fa84ee74e6dff7170b643df3ffa42
  Author: Olivier Giroux <ogiroux at gmail.com>
  Date:   2020-09-09 (Wed, 09 Sep 2020)

  Changed paths:
    M libcxx/docs/FeatureTestMacroTable.rst
    M libcxx/include/atomic
    M libcxx/include/version
    A libcxx/test/std/atomics/atomics.flag/atomic_flag_test.pass.cpp
    A libcxx/test/std/atomics/atomics.flag/atomic_flag_test_explicit.pass.cpp
    M libcxx/test/std/atomics/atomics.lockfree/isalwayslockfree.pass.cpp
    M libcxx/test/std/atomics/atomics.types.operations/atomics.types.operations.req/atomic_helpers.h
    M libcxx/test/std/atomics/types.pass.cpp
    M libcxx/test/std/language.support/support.limits/support.limits.general/atomic.version.pass.cpp
    M libcxx/test/std/language.support/support.limits/support.limits.general/concepts.version.pass.cpp
    M libcxx/test/std/language.support/support.limits/support.limits.general/execution.version.pass.cpp
    M libcxx/test/std/language.support/support.limits/support.limits.general/memory.version.pass.cpp
    M libcxx/test/std/language.support/support.limits/support.limits.general/version.version.pass.cpp
    M libcxx/test/support/cmpxchg_loop.h
    M libcxx/utils/generate_feature_test_macro_components.py

  Log Message:
  -----------
  Update atomic feature macros, synopsis, signatures to match C++20. Improve test coverage for non-lock-free atomics.