verify.yml

name: Verify
concurrency: verify
on:
  push:
    branches: [ main ]
  workflow_dispatch:
  repository_dispatch:
    types: [on-llvm-update]

jobs:
  build-debug:
    runs-on: ubuntu-latest

    steps:
      - name: Install build dependencies.
        run: |
          sudo apt-get install cmake ninja-build lld
      - name: Check out the compiler.
        uses: actions/checkout@v2
        with:
          repository: 'llvm-mos/llvm-mos'
          path: 'llvm-mos'
      - name: Setup ccache
        uses: hendrikmuhs/ccache-action@v1.2
        with:
          # A full build of llvm, clang, lld, and lldb takes about 250MB
          # of ccache space. There's not much reason to have more than this,
          # because we usually won't need to save cache entries from older
          # builds.  Also, there is an overall 10GB cache limit, and each
          # run creates a new cache entry so we want to ensure that we have
          # enough cache space for all the tests to run at once and still
          # fit under the 10 GB limit.
          max-size: 500M
          key: sccache-${{ matrix.os }}
          variant: sccache
      - name: Build the compiler.
        run: |
          cd llvm-mos
          cmake -C clang/cmake/caches/MOS.cmake -G Ninja -S llvm -B build -DLLVM_ENABLE_ASSERTIONS=ON -DLLVM_USE_LINKER=lld -DCMAKE_C_COMPILER_LAUNCHER=sccache -DCMAKE_CXX_COMPILER_LAUNCHER=sccache
          cd build
          cmake --build . --target builtins clang lld llvm-ar llvm-ranlib llvm-size llvm-mlb
      - name: Archive the compiler.
        run: |
          for dir in build/{bin,lib/clang} llvm/utils; do
            mkdir -p staging/llvm-mos/$(dirname $dir)
            mv llvm-mos/$dir staging/llvm-mos/$(dirname $dir)
          done
          rm -rf llvm-mos
          cd staging
          tar --zstd -cf ../compiler.tar.zst llvm-mos
          cd ..
          rm -rf staging
      - name: Upload the compiler.
        uses: actions/upload-artifact@v4
        with:
          name: compiler
          path: compiler.tar.zst

  verify:
    needs: build-debug

    runs-on: ubuntu-latest

    strategy:
      matrix:
        opt: [O0, O3, Os, Oz]
      fail-fast: false

    steps:
      - name: Install build dependencies.
        run: |
          sudo apt-get install cmake ninja-build llvm
      - name: Download the compiler.
        uses: actions/download-artifact@v4
        with:
          name: compiler
      - name: Extract the compiler.
        run: tar -xpf compiler.tar.zst
      - name: Check out the SDK.
        uses: actions/checkout@v2
        with:
          repository: 'llvm-mos/llvm-mos-sdk'
          path: 'llvm-mos-sdk'
      - name: Build the SDK.
        run: |
          cd llvm-mos-sdk
          mkdir build
          cd build
          cmake -DCMAKE_INSTALL_PREFIX=$GITHUB_WORKSPACE/llvm-mos/build -G "Ninja" ..
          ninja install
      - name: Check out the test suite.
        uses: actions/checkout@v2
        with:
          path: 'llvm-test-suite'
      - name: Verify the test suite.
        run: |
          cd llvm-test-suite
          mkdir build
          cd build
          cmake -DLLVM_MOS=$GITHUB_WORKSPACE/llvm-mos/build \
            -C../cmake/caches/${{ matrix.opt }}.cmake \
            -C../cmake/caches/target-mos.cmake \
            -DTEST_SUITE_ARCH_FLAGS="-Wl,-mllvm,-verify-machineinstrs" \
            -G Ninja \
            ..
          ninja
      - name: Run the test suite.
        run: |
          cd llvm-test-suite/build
          $GITHUB_WORKSPACE/llvm-mos/build/bin/llvm-lit .