name: LLVM

on:
    workflow_dispatch:

jobs:
  build:
    strategy:
      fail-fast: false
      matrix:
        config:
          - { os: ubuntu-22.04, platform: x64, cxx: g++-11, cc: gcc-11 }
          - { os: ubuntu-22.04, platform: arm64, cxx: g++-11, cc: gcc-11 }
          - { os: macos-11, platform: x64, cxx: clang++, cc: clang }
          - { os: macos-12, platform: x64, cxx: clang++, cc: clang }
          - { os: macos-12, platform: arm64, cxx: clang++, cc: clang }

    runs-on: ${{ matrix.config.os }}

    env:
      CC: ${{ matrix.config.cc }}
      CXX: ${{ matrix.config.cxx }}
      PLATFORM: ${{ matrix.config.platform }}
      ACTIONS_ALLOW_UNSECURE_COMMANDS: true

    steps:
      - uses: actions/checkout@v4
      - uses: lukka/get-cmake@latest

      - name: Install cross compilers
        if: startsWith(matrix.config.os, 'ubuntu') && startsWith(matrix.config.platform, 'arm64')
        run: sudo apt install -y g++-aarch64-linux-gnu gcc-aarch64-linux-gnu

      - name: Clone LLVM
        shell: bash
        run: build/build.sh clone_llvm
          
      - name: Build LLVM
        shell: bash
        run: build/build.sh build_llvm -platform $PLATFORM

      - name: Package LLVM
        shell: bash
        run: build/build.sh package_llvm -platform $PLATFORM

      - name: 'Upload Artifact'
        uses: actions/upload-artifact@v3
        with:
          name: llvm
          path: build/llvm/llvm-*-*.*