[libcxx] [llvm] [libc++] Updates the compilers used post LLVM-20 branching. (PR #126564)
Mark de Wever via llvm-commits
llvm-commits at lists.llvm.org
Wed Feb 12 08:53:16 PST 2025
https://github.com/mordante updated https://github.com/llvm/llvm-project/pull/126564
>From cb49571151792562dafaba7f822d7d961ae39c94 Mon Sep 17 00:00:00 2001
From: Mark de Wever <koraq at xs4all.nl>
Date: Mon, 10 Feb 2025 19:08:13 +0100
Subject: [PATCH 1/2] [libc++] Updates the compilers used post LLVM-20
branching.
Once LLVM 20 is released the clang-18 will no longer be supported.
---
.github/workflows/libcxx-build-and-test.yaml | 28 +++++++++++---------
libcxx/docs/index.rst | 16 +++++------
2 files changed, 24 insertions(+), 20 deletions(-)
diff --git a/.github/workflows/libcxx-build-and-test.yaml b/.github/workflows/libcxx-build-and-test.yaml
index ee77e83363d37..d0193a4ec2faa 100644
--- a/.github/workflows/libcxx-build-and-test.yaml
+++ b/.github/workflows/libcxx-build-and-test.yaml
@@ -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 at 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 at 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 at 26f96dfa697d77e81fd5907df203aa23a56210a8 # v4.3.0
if: always()
with:
diff --git a/libcxx/docs/index.rst b/libcxx/docs/index.rst
index 37912e9f8d03e..58ff1232e97fa 100644
--- a/libcxx/docs/index.rst
+++ b/libcxx/docs/index.rst
@@ -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:
>From bd0d864fd3915834cb750b2ee9638713dc1a6fbf Mon Sep 17 00:00:00 2001
From: Mark de Wever <koraq at xs4all.nl>
Date: Wed, 12 Feb 2025 17:52:49 +0100
Subject: [PATCH 2/2] Fixes CI.
---
libcxx/test/libcxx/gdb/gdb_pretty_printer_test.sh.cpp | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libcxx/test/libcxx/gdb/gdb_pretty_printer_test.sh.cpp b/libcxx/test/libcxx/gdb/gdb_pretty_printer_test.sh.cpp
index 6509bb58140ab..dcdce261298c1 100644
--- a/libcxx/test/libcxx/gdb/gdb_pretty_printer_test.sh.cpp
+++ b/libcxx/test/libcxx/gdb/gdb_pretty_printer_test.sh.cpp
@@ -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.
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