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[libc++] Updates the compilers used post LLVM-20 branching. (#126564)

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Once LLVM 20 is released the clang-18 will no longer be supported.
This commit is contained in:
Mark de Wever
2025-02-18 19:26:44 +01:00
committed by GitHub
parent 7c104b63c7
commit b22fc43551
3 changed files with 25 additions and 21 deletions
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28
.github/workflows/libcxx-build-and-test.yaml vendored
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@@ -37,7 +37,7 @@ jobs:
stage1:
if: github.repository_owner == 'llvm'
runs-on: libcxx-self-hosted-linux
container: ghcr.io/llvm/libcxx-linux-builder:d8a0709b1090350a7fe3604d8ab78c7d62f10698
container: ghcr.io/llvm/libcxx-linux-builder:b319dfef21f6c7b0bc6a356d6b9f41a3b3b98ae9
continue-on-error: false
strategy:
fail-fast: false
@@ -48,8 +48,8 @@ jobs:
'generic-cxx26',
'generic-modules'
]
cc: [ 'clang-20' ]
cxx: [ 'clang++-20' ]
cc: [ 'clang-21' ]
cxx: [ 'clang++-21' ]
include:
- config: 'generic-gcc'
cc: 'gcc-14'
@@ -75,7 +75,7 @@ jobs:
stage2:
if: github.repository_owner == 'llvm'
runs-on: libcxx-self-hosted-linux
container: ghcr.io/llvm/libcxx-linux-builder:d8a0709b1090350a7fe3604d8ab78c7d62f10698
container: ghcr.io/llvm/libcxx-linux-builder:b319dfef21f6c7b0bc6a356d6b9f41a3b3b98ae9
needs: [ stage1 ]
continue-on-error: false
strategy:
@@ -88,18 +88,22 @@ jobs:
'generic-cxx20',
'generic-cxx23'
]
cc: [ 'clang-20' ]
cxx: [ 'clang++-20' ]
cc: [ 'clang-21' ]
cxx: [ 'clang++-21' ]
include:
- config: 'generic-gcc-cxx11'
cc: 'gcc-14'
cxx: 'g++-14'
- config: 'generic-cxx23'
cc: 'clang-18'
cxx: 'clang++-18'
- config: 'generic-cxx26'
cc: 'clang-20'
cxx: 'clang++-20'
- config: 'generic-cxx26'
cc: 'clang-19'
cxx: 'clang++-19'
# Release transition
- config: 'generic-cxx23'
cc: 'clang-18'
cxx: 'clang++-18'
steps:
- uses: actions/checkout@v4
- name: ${{ matrix.config }}
@@ -163,14 +167,14 @@ jobs:
- config: 'generic-msan'
machine: libcxx-self-hosted-linux
runs-on: ${{ matrix.machine }}
container: ghcr.io/llvm/libcxx-linux-builder:d8a0709b1090350a7fe3604d8ab78c7d62f10698
container: ghcr.io/llvm/libcxx-linux-builder:b319dfef21f6c7b0bc6a356d6b9f41a3b3b98ae9
steps:
- uses: actions/checkout@v4
- name: ${{ matrix.config }}
run: libcxx/utils/ci/run-buildbot ${{ matrix.config }}
env:
CC: clang-20
CXX: clang++-20
CC: clang-21
CXX: clang++-21
- uses: actions/upload-artifact@26f96dfa697d77e81fd5907df203aa23a56210a8 # v4.3.0
if: always()
with:

16
libcxx/docs/index.rst
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@@ -128,14 +128,14 @@ Libc++ aims to support common compilers that implement the C++11 Standard. In or
good balance between stability for users and maintenance cost, testing coverage and development
velocity, libc++ drops support for older compilers as newer ones are released.
============ =============== ========================== =====================
Compiler Versions Restrictions Support policy
============ =============== ========================== =====================
Clang 17, 18, 19-git latest two stable releases per `LLVM's release page <https://releases.llvm.org>`_ and the development version
AppleClang 15 latest stable release per `Xcode's release page <https://developer.apple.com/documentation/xcode-release-notes>`_
Open XL 17.1 (AIX) latest stable release per `Open XL's documentation page <https://www.ibm.com/docs/en/openxl-c-and-cpp-aix>`_
GCC 14 In C++11 or later only latest stable release per `GCC's release page <https://gcc.gnu.org/releases.html>`_
============ =============== ========================== =====================
============ =================== ========================== =====================
Compiler Versions Restrictions Support policy
============ =================== ========================== =====================
Clang 18, 19, 20, 21-git latest two stable releases per `LLVM's release page <https://releases.llvm.org>`_ and the development version
AppleClang 15 latest stable release per `Xcode's release page <https://developer.apple.com/documentation/xcode-release-notes>`_
Open XL 17.1 (AIX) latest stable release per `Open XL's documentation page <https://www.ibm.com/docs/en/openxl-c-and-cpp-aix>`_
GCC 14 In C++11 or later only latest stable release per `GCC's release page <https://gcc.gnu.org/releases.html>`_
============ =================== ========================== =====================
Libc++ also supports common platforms and architectures:

2
libcxx/test/libcxx/gdb/gdb_pretty_printer_test.sh.cpp
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@@ -12,7 +12,7 @@
// UNSUPPORTED: c++03
// TODO: Investigate these failures which break the CI.
// UNSUPPORTED: clang-18, clang-19, clang-20
// UNSUPPORTED: clang-18, clang-19, clang-20, clang-21
// The Android libc++ tests are run on a non-Android host, connected to an
// Android device over adb. gdb needs special support to make this work (e.g.