Build and Test libc++ #38
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| # This file defines pre-commit CI for libc++, libc++abi, and libunwind (on Github). | |
| # | |
| # We split the configurations in multiple stages with the intent of saving compute time | |
| # when a job fails early in the pipeline. This is why the jobs are marked as `continue-on-error: false`. | |
| # We try to run the CI configurations with the most signal in the first stage. | |
| # | |
| # Stages 1 & 2 are meant to be "smoke tests", and are meant to catch most build/test failures quickly and without using | |
| # too many resources. | |
| # Stage 3 is "everything else", and is meant to catch breakages on more niche or unique configurations. | |
| # | |
| # Therefore, we "fail-fast" for any failures during stages 1 & 2, meaning any job failing cancels all other running jobs, | |
| # under the assumption that if the "smoke tests" fail, then the other configurations will likely fail in the same way. | |
| # However, stage 3 does not fail fast, as it's more likely that any one job failing is a flake or a configuration-specific | |
| # | |
| name: Build and Test libc++ | |
| on: | |
| pull_request: | |
| paths: | |
| - 'libcxx/**' | |
| - 'libcxxabi/**' | |
| - 'libunwind/**' | |
| - 'runtimes/**' | |
| - 'cmake/**' | |
| - '.github/workflows/libcxx-build-and-test.yaml' | |
| schedule: | |
| # Run nightly at 8 AM UTC (or roughly 3 AM eastern) | |
| - cron: '0 3 * * *' | |
| permissions: | |
| contents: read # Default everything to read-only | |
| concurrency: | |
| group: ${{ github.workflow }}-${{ github.event.pull_request.number }} | |
| cancel-in-progress: true | |
| env: | |
| CMAKE: "/opt/bin/cmake" | |
| # LLVM POST-BRANCH bump version | |
| # LLVM POST-BRANCH add compiler test for ToT - 1, e.g. "Clang 17" | |
| # LLVM RELEASE bump remove compiler ToT - 3, e.g. "Clang 15" | |
| LLVM_HEAD_VERSION: "18" # Used compiler, update POST-BRANCH. | |
| LLVM_PREVIOUS_VERSION: "17" | |
| LLVM_OLDEST_VERSION: "16" | |
| GCC_STABLE_VERSION: "13" | |
| LLVM_SYMBOLIZER_PATH: "/usr/bin/llvm-symbolizer-18" | |
| CLANG_CRASH_DIAGNOSTICS_DIR: "crash_diagnostics" | |
| jobs: | |
| stage1: | |
| if: github.repository_owner == 'llvm' | |
| runs-on: libcxx-runners-8-set | |
| continue-on-error: false | |
| strategy: | |
| fail-fast: false | |
| matrix: | |
| config: [ | |
| 'generic-cxx03', | |
| 'generic-cxx26', | |
| 'generic-modules' | |
| ] | |
| cc: [ 'clang-18' ] | |
| cxx: [ 'clang++-18' ] | |
| clang_tidy: [ 'ON' ] | |
| include: | |
| - config: 'generic-gcc' | |
| cc: 'gcc-13' | |
| cxx: 'g++-13' | |
| clang_tidy: 'OFF' | |
| steps: | |
| - uses: actions/checkout@v4 | |
| - name: ${{ matrix.config }}.${{ matrix.cxx }} | |
| run: libcxx/utils/ci/run-buildbot ${{ matrix.config }} | |
| env: | |
| CC: ${{ matrix.cc }} | |
| CXX: ${{ matrix.cxx }} | |
| ENABLE_CLANG_TIDY: ${{ matrix.clang_tidy }} | |
| - uses: actions/upload-artifact@v3 | |
| if: always() | |
| with: | |
| name: ${{ matrix.config }}-${{ matrix.cxx }}-results | |
| path: | | |
| **/test-results.xml | |
| **/*.abilist | |
| **/CMakeError.log | |
| **/CMakeOutput.log | |
| **/crash_diagnostics/* | |
| stage2: | |
| if: github.repository_owner == 'llvm' | |
| runs-on: libcxx-runners-8-set | |
| needs: [ stage1 ] | |
| continue-on-error: false | |
| strategy: | |
| fail-fast: false | |
| matrix: | |
| config: [ | |
| 'generic-cxx11', | |
| 'generic-cxx14', | |
| 'generic-cxx17', | |
| 'generic-cxx20', | |
| 'generic-cxx23' | |
| ] | |
| cc: [ 'clang-18' ] | |
| cxx: [ 'clang++-18' ] | |
| clang_tidy: [ 'ON' ] | |
| include: | |
| - config: 'generic-gcc-cxx11' | |
| cc: 'gcc-13' | |
| cxx: 'g++-13' | |
| clang_tidy: 'OFF' | |
| - config: 'generic-cxx23' | |
| cc: 'clang-16' | |
| cxx: 'clang++-16' | |
| clang_tidy: 'OFF' | |
| - config: 'generic-cxx23' | |
| cc: 'clang-17' | |
| cxx: 'clang++-17' | |
| clang_tidy: 'OFF' | |
| steps: | |
| - uses: actions/checkout@v4 | |
| - name: ${{ matrix.config }} | |
| run: libcxx/utils/ci/run-buildbot ${{ matrix.config }} | |
| env: | |
| CC: ${{ matrix.cc }} | |
| CXX: ${{ matrix.cxx }} | |
| ENABLE_CLANG_TIDY: ${{ matrix.clang_tidy }} | |
| - uses: actions/upload-artifact@v3 | |
| if: always() # Upload artifacts even if the build or test suite fails | |
| with: | |
| name: ${{ matrix.config }}-results | |
| path: | | |
| **/test-results.xml | |
| **/*.abilist | |
| **/CMakeError.log | |
| **/CMakeOutput.log | |
| **/crash_diagnostics/* | |
| stage3: | |
| if: github.repository_owner == 'llvm' | |
| needs: [ stage1, stage2 ] | |
| continue-on-error: false | |
| strategy: | |
| fail-fast: false | |
| max-parallel: 8 | |
| matrix: | |
| config: [ | |
| 'generic-abi-unstable', | |
| 'generic-hardening-mode-debug', | |
| 'generic-hardening-mode-extensive', | |
| 'generic-hardening-mode-fast', | |
| 'generic-hardening-mode-fast-with-abi-breaks', | |
| 'generic-merged', | |
| 'generic-modules-lsv', | |
| 'generic-no-exceptions', | |
| 'generic-no-experimental', | |
| 'generic-no-filesystem', | |
| 'generic-no-localization', | |
| 'generic-no-random_device', | |
| 'generic-no-threads', | |
| 'generic-no-tzdb', | |
| 'generic-no-unicode', | |
| 'generic-no-wide-characters', | |
| 'generic-no-rtti', | |
| 'generic-static', | |
| 'generic-with_llvm_unwinder', | |
| # TODO Find a better place for the benchmark and bootstrapping builds to live. They're either very expensive | |
| # or don't provide much value since the benchmark run results are too noise on the bots. | |
| 'benchmarks', | |
| 'bootstrapping-build' | |
| ] | |
| machine: [ 'libcxx-runners-8-set' ] | |
| std_modules: [ 'OFF' ] | |
| include: | |
| - config: 'generic-cxx26' | |
| machine: libcxx-runners-8-set | |
| std_modules: 'ON' | |
| - config: 'generic-asan' | |
| machine: libcxx-runners-8-set | |
| std_modules: 'OFF' | |
| - config: 'generic-tsan' | |
| machine: libcxx-runners-8-set | |
| std_modules: 'OFF' | |
| - config: 'generic-ubsan' | |
| machine: libcxx-runners-8-set | |
| std_modules: 'OFF' | |
| # Use a larger machine for MSAN to avoid timeout and memory allocation issues. | |
| - config: 'generic-msan' | |
| machine: libcxx-runners-32-set | |
| std_modules: 'OFF' | |
| runs-on: ${{ matrix.machine }} | |
| steps: | |
| - uses: actions/checkout@v4 | |
| - name: ${{ matrix.config }} | |
| run: libcxx/utils/ci/run-buildbot ${{ matrix.config }} | |
| env: | |
| CC: clang-18 | |
| CXX: clang++-18 | |
| ENABLE_CLANG_TIDY: "OFF" | |
| ENABLE_STD_MODULES: ${{ matrix.std_modules }} | |
| - uses: actions/upload-artifact@v3 | |
| if: always() | |
| with: | |
| name: ${{ matrix.config }}-results | |
| path: | | |
| **/test-results.xml | |
| **/*.abilist | |
| **/CMakeError.log | |
| **/CMakeOutput.log | |
| **/crash_diagnostics/* | |