build_flang_arm64.yml

name: Flang build & test ARM64

on:
  push:
    branches: [ master ]
    paths-ignore:
      - '**/.github/workflows/build_flang.yml'
      - '**/.github/workflows/build_flang_windows.yml'
  pull_request:
    branches: [ master ]
    paths-ignore:
      - '**/.github/workflows/build_flang.yml'
      - '**/.github/workflows/build_flang_windows.yml'

jobs:
  build_flang:
    if: github.repository_owner == 'flang-compiler'
    runs-on: self-hosted
    env:
      build_path: /home/github
      install_prefix: /home/github/usr/local
    container:
      image: ghcr.io/${{ github.repository_owner}}/ubuntu-flang-${{ matrix.llvm_branch }}:latest
      credentials:
        username: github
    strategy:
      matrix:
        target: [AArch64]
        llvm_branch: [release_17x, release_18x]

    steps:
      - name: Check tools
        run: |
          git --version
          cmake --version
          make --version
          ${{ env.install_prefix }}/bin/clang --version

      - name: Manual checkout to build in user's home dir (push)
        if: github.ref == 'refs/heads/master'
        run: |
          cd ${{ env.build_path }}
          git clone https://github.com/flang-compiler/flang.git

      - name: Manual checkout to build in user's home dir (pull_request)
        if: github.ref != 'refs/heads/master'
        run: |
          cd ${{ env.build_path }}
          git clone https://github.com/flang-compiler/flang.git
          cd flang
          git fetch origin ${{github.ref}}:pr_branch
          git checkout pr_branch

      - name: Build and install flang & libpgmath
        run: |
          cd ${{ env.build_path }}/flang
          ./build-flang.sh -t ${{ matrix.target }} -p ${{ env.install_prefix }} -n `nproc --ignore=1` -v -l /home/root/classic-flang-llvm-project/llvm

      - name: Copy llvm-lit
        run: |
          cd ${{ env.build_path }}/flang
          cp /home/root/classic-flang-llvm-project/build/bin/llvm-lit build/flang/bin/.

      - name: Test flang
        run: |
          cd ${{ env.build_path }}/flang/build/flang
          make check-flang-long