test_clang_linux.yml

name: clang linux

on:
  push:
  pull_request:
  workflow_dispatch:
  schedule:
    - cron: '20 3 * * *'
  

env:
  TEST_DIR: ./tests


jobs:
  all:
    strategy:
      fail-fast: false
      matrix:
        clang_version: [13, 15]
        cpp_version: [c++17, c++20]
        stdlib: [libc++, libstdc++] # llvm library and gcc library
        arch: [m64, m32] # 64 and 32 bit
        buildmode: [~ ,  -O3 -DNDEBUG,  -O3 -DNDEBUG -ffast-math]
    
        # Also include a few variations with disabled UB tricks (not for all to limit resource consumption).
        include:
        - clang_version: 15
          cpp_version: c++20
          stdlib: libc++
          arch: m64
          buildmode: -DTINY_OPTIONAL_USE_SEPARATE_BOOL_INSTEAD_OF_UB_TRICKS
        - clang_version: 15
          cpp_version: c++20
          stdlib: libstdc++
          arch: m64
          buildmode: -DTINY_OPTIONAL_USE_SEPARATE_BOOL_INSTEAD_OF_UB_TRICKS

    runs-on: ubuntu-22.04
    timeout-minutes: 10

    steps:
    - uses: actions/checkout@v4

    - name: Install libc++ if required
      # libc++ is not installed for all clang versions by default.
      if: ${{ matrix.stdlib == 'libc++' && matrix.arch == 'm64' }}
      run: |
        sudo apt update
        sudo apt install ${{ format('libc++-{0}-dev libc++abi-{0}-dev', matrix.clang_version) }} -y 

    - name: Install gcc-multilib and libc++ for x86 if required
      # For x86: We require both gcc multilib and the 32-bit variant (i386) of libc++ for the 
      # used clang version. For libc++ we need to manually add the i386 architecture.
      if: ${{ matrix.arch == 'm32' }}
      run: |
        sudo dpkg --add-architecture i386
        sudo apt update
        sudo apt install gcc-multilib g++-multilib ${{ format('libc++-{0}-dev:i386 libc++abi-{0}-dev:i386', matrix.clang_version) }} -y 

    - name: Build and run tests
      working-directory: ${{env.TEST_DIR}}
      env:
        CXX: ${{ format('clang++-{0}', matrix.clang_version) }}
        ADDITIONAL_FLAGS: ${{ format('-{0} -std={1} -stdlib={2} {3}', matrix.arch, matrix.cpp_version, matrix.stdlib, matrix.buildmode) }}
      run: make generic