main.yml

name: Build and Test

on:
  workflow_dispatch:
  pull_request:
  push:
    branches:
      - "master"

permissions:
  contents: read

# This allows a subsequently queued workflow run to interrupt previous runs
concurrency:
  group: '${{ github.workflow }} @ ${{ github.ref_protected && github.run_id || github.event.pull_request.number || github.ref }}'
  cancel-in-progress: true

jobs:
  build:
    strategy:
      matrix:
        include:
          - os: ubuntu-latest
          - os: macos-latest
    runs-on: ${{ matrix.os }}
    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Setup LLVM (Linux)
        if: ${{ runner.os == 'Linux' }}
        run: |
          wget https://apt.llvm.org/llvm.sh
          chmod +x llvm.sh
          sudo ./llvm.sh 19 all
          sudo update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-19 160
          sudo update-alternatives --install /usr/bin/clang clang /usr/bin/clang-19 160
          sudo update-alternatives --install /usr/bin/lli lli /usr/bin/lli-19 160
          sudo update-alternatives --install /usr/bin/clang-format clang-format /usr/bin/clang-format-19 160

      - name: Setup LLVM and GCC (MacOS)
        if: ${{ runner.os == 'macOS' }}
        run: |
          brew install llvm@19 gcc@14
          echo "$(brew --prefix llvm@19)/bin" >> $GITHUB_PATH
          echo "CC=$(brew --prefix llvm@19)/bin/clang" >> $GITHUB_ENV
          echo "CXX=$(brew --prefix llvm@19)/bin/clang++" >> $GITHUB_ENV
          cd /usr/local/bin
          ln -s `which gcc-14` gcc

      - name: Update Python
        uses: actions/setup-python@v4
        with:
          python-version: '3.x'

      - name: Install PyTest
        run: |
          python -m pip install --upgrade pip
          pip install pytest pytest-xdist

      - name: Check formatting
        if: ${{ runner.os == 'Linux' }}
        run: find . -iname '*.h' -o -iname '*.cpp' | xargs clang-format -Werror --dry-run --style=LLVM --verbose

      - name: Build
        run: |
          mkdir build
          cmake -S . -B build -DLLVM_INCLUDE_TESTS=On -DLLVM_DIR=/usr/lib/llvm-19/cmake
          cmake --build build

      - name: Test
        run: |
          gcc --version
          pytest -n 16

  # The llvm-dev package doesn't exist for Windows, so we need to build LLVM ourselves.
  build-windows:
    runs-on: windows-latest
    env:
      SCCACHE_GHA_ENABLED: "true"
    steps:
      - name: Checkout LLVM
        id: checkout-llvm
        uses: actions/checkout@master
        with:
          repository: llvm/llvm-project
          ref: llvmorg-19.1.1

      - name: Checkout
        uses: actions/checkout@v3
        with:
          path: ${{ github.workspace }}/llvm/projects/llvm-cbe

      - name: Update Python
        uses: actions/setup-python@v4
        with:
          python-version: '3.x'

      - name: Install PyTest
        run: |
          python -m pip install --upgrade pip
          pip install pytest pytest-xdist

      - name: Initialize LLVM build cache
        uses: mozilla-actions/sccache-action@v0.0.3

      - name: Build
        shell: pwsh
        run: |
          $vsWhere = Join-Path ${env:ProgramFiles(x86)} 'Microsoft Visual Studio\Installer\vswhere.exe'
          $visualStudioInstallationPath = & $vsWhere -latest -property installationPath
          Import-Module (Join-Path $visualStudioInstallationPath 'Common7\Tools\Microsoft.VisualStudio.DevShell.dll')
          Enter-VsDevShell -VsInstallPath $visualStudioInstallationPath -DevCmdArguments '-arch=x64 -host_arch=x64'
          cd ${{ github.workspace }}
          if (!(Test-Path '${{ github.workspace }}\build\')) { mkdir '${{ github.workspace }}\build' }
          cmake -S llvm -B build -G Ninja -DLLVM_INCLUDE_TESTS=On -DCMAKE_BUILD_TYPE=Release -DCMAKE_C_COMPILER_LAUNCHER=sccache -DCMAKE_CXX_COMPILER_LAUNCHER=sccache
          cmake --build build

      - name: Test
        shell: pwsh
        run: |
          $vsWhere = Join-Path ${env:ProgramFiles(x86)} 'Microsoft Visual Studio\Installer\vswhere.exe'
          $visualStudioInstallationPath = & $vsWhere -latest -property installationPath
          Import-Module (Join-Path $visualStudioInstallationPath 'Common7\Tools\Microsoft.VisualStudio.DevShell.dll')
          Enter-VsDevShell -VsInstallPath $visualStudioInstallationPath -DevCmdArguments '-arch=x64 -host_arch=x64'
          cd (Join-Path '${{ github.workspace }}' 'llvm\projects\llvm-cbe')
          $env:PATH=$env:Path + ";${{ github.workspace }}\build\bin"
          $env:LLVMToolDir="${{ github.workspace }}\build\bin"
          pytest -n 16