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path: root/library/stdarch/.github/workflows/main.yml
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name: CI
on:
  pull_request:
  merge_group:

jobs:
  style:
    name: Check Style
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
    - name: Install Rust
      run: rustup update nightly --no-self-update && rustup default nightly
    - run: ci/style.sh

  docs:
    name: Build Documentation
    needs: [style]
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
    - name: Install Rust
      run: rustup update nightly --no-self-update && rustup default nightly
    - run: ci/dox.sh
      env:
        CI: 1

  verify:
    name: Automatic intrinsic verification
    needs: [style]
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
    - name: Install Rust
      run: rustup update nightly --no-self-update && rustup default nightly
    - run: cargo test --manifest-path crates/stdarch-verify/Cargo.toml

  test:
    needs: [style]
    name: Test
    runs-on: ${{ matrix.target.os }}
    strategy:
      matrix:
        profile:
        - dev
        - release
        target:
        # Dockers that are run through docker on linux
        - tuple: i686-unknown-linux-gnu
          os: ubuntu-latest
        - tuple: x86_64-unknown-linux-gnu
          os: ubuntu-latest
        - tuple: arm-unknown-linux-gnueabihf
          os: ubuntu-latest
        - tuple: armv7-unknown-linux-gnueabihf
          os: ubuntu-latest
        - tuple: aarch64-unknown-linux-gnu
          os: ubuntu-latest
        - tuple: aarch64_be-unknown-linux-gnu
          os: ubuntu-latest
        - tuple: riscv32gc-unknown-linux-gnu
          os: ubuntu-latest
        - tuple: riscv64gc-unknown-linux-gnu
          os: ubuntu-latest
        - tuple: powerpc-unknown-linux-gnu
          os: ubuntu-latest
        - tuple: powerpc64-unknown-linux-gnu
          os: ubuntu-latest
        - tuple: powerpc64le-unknown-linux-gnu
          os: ubuntu-latest
        # MIPS targets disabled since they are dropped to tier 3.
        # See https://github.com/rust-lang/compiler-team/issues/648
        #- tuple: mips-unknown-linux-gnu
        #  os: ubuntu-latest
        #- tuple: mips64-unknown-linux-gnuabi64
        #  os: ubuntu-latest
        #- tuple: mips64el-unknown-linux-gnuabi64
        #  os: ubuntu-latest
        #- tuple: mipsel-unknown-linux-musl
        #  os: ubuntu-latest
        - tuple: s390x-unknown-linux-gnu
          os: ubuntu-latest
        - tuple: i586-unknown-linux-gnu
          os: ubuntu-latest
        - tuple: nvptx64-nvidia-cuda
          os: ubuntu-latest
        - tuple: thumbv6m-none-eabi
          os: ubuntu-latest
        - tuple: thumbv7m-none-eabi
          os: ubuntu-latest
        - tuple: thumbv7em-none-eabi
          os: ubuntu-latest
        - tuple: thumbv7em-none-eabihf
          os: ubuntu-latest
        - tuple: loongarch64-unknown-linux-gnu
          os: ubuntu-latest
        - tuple: wasm32-wasip1
          os: ubuntu-latest

        # macOS targets
        - tuple: x86_64-apple-darwin
          os: macos-15-large
        - tuple: x86_64-apple-ios-macabi
          os: macos-15-large
        - tuple: aarch64-apple-darwin
          os: macos-15
        - tuple: aarch64-apple-ios-macabi
          os: macos-15
        # FIXME: gh-actions build environment doesn't have linker support
        # - tuple: i686-apple-darwin
        #   os: macos-13

        # Windows targets
        - tuple: x86_64-pc-windows-msvc
          os: windows-2025
        - tuple: i686-pc-windows-msvc
          os: windows-2025
        - tuple: aarch64-pc-windows-msvc
          os: windows-11-arm
        - tuple: x86_64-pc-windows-gnu
          os: windows-2025
        # - tuple: i686-pc-windows-gnu
        #   os: windows-latest

        # Add additional variables to the matrix variations generated above using `include`:
        include:
        # `TEST_EVERYTHING` setups - there should be at least 1 for each architecture
        - target:
            tuple: aarch64-unknown-linux-gnu
            os: ubuntu-latest
          test_everything: true
        - target:
            tuple: aarch64_be-unknown-linux-gnu
            os: ubuntu-latest
          test_everything: true
          build_std: true
        - target:
            tuple: armv7-unknown-linux-gnueabihf
            os: ubuntu-latest
          test_everything: true
        - target:
            tuple: loongarch64-unknown-linux-gnu
            os: ubuntu-latest
          test_everything: true
        - target:
            tuple: powerpc-unknown-linux-gnu
            os: ubuntu-latest
          disable_assert_instr: true
          test_everything: true
        - target:
            tuple: powerpc64-unknown-linux-gnu
            os: ubuntu-latest
          disable_assert_instr: true
          test_everything: true
        - target:
            tuple: powerpc64le-unknown-linux-gnu
            os: ubuntu-latest
          test_everything: true
        - target:
            tuple: riscv32gc-unknown-linux-gnu
            os: ubuntu-latest
          test_everything: true
          build_std: true
        - target:
            tuple: riscv64gc-unknown-linux-gnu
            os: ubuntu-latest
          test_everything: true
        - target:
            tuple: s390x-unknown-linux-gnu
            os: ubuntu-latest
          test_everything: true
        - target:
            tuple: x86_64-unknown-linux-gnu
            os: ubuntu-latest
          test_everything: true
        # MIPS targets disabled since they are dropped to tier 3.
        # See https://github.com/rust-lang/compiler-team/issues/648
        #- target:
        #    tuple: mips-unknown-linux-gnu
        #    os: ubuntu-latest
        #  norun: true
        #- target:
        #    tuple: mips64-unknown-linux-gnuabi64
        #    os: ubuntu-latest
        #  norun: true
        #- target:
        #    tuple: mips64el-unknown-linux-gnuabi64
        #    os: ubuntu-latest
        #  norun: true
        #- target:
        #    tuple: mipsel-unknown-linux-musl
        #    os: ubuntu-latest
        #  norun: true
        - target:
            tuple: aarch64-apple-darwin
            os: macos-15
          norun: true # https://github.com/rust-lang/stdarch/issues/1206
        - target:
            tuple: aarch64-apple-ios-macabi
            os: macos-15
          norun: true # https://github.com/rust-lang/stdarch/issues/1206

    steps:
    - uses: actions/checkout@v4
    - name: Install Rust
      run: |
        rustup update nightly --no-self-update
        rustup default nightly
      shell: bash
      if: matrix.target.os != 'windows-11-arm'
    - name: Install Rust for `windows-11-arm` runners
      # The arm runners don't have Rust pre-installed (https://github.com/actions/partner-runner-images/issues/77)
      run: |
        curl https://sh.rustup.rs | sh -s -- -y --default-toolchain nightly
        echo "$HOME/.cargo/bin" >> $GITHUB_PATH
      shell: bash
      if: matrix.target.os == 'windows-11-arm'

    - run: rustup target add ${{ matrix.target.tuple }}
      shell: bash
      if: matrix.build_std == ''
    - run: |
        rustup component add rust-src
        echo "CARGO_UNSTABLE_BUILD_STD=std" >> $GITHUB_ENV
      shell: bash
      if: matrix.build_std != ''

    # Configure some env vars based on matrix configuration
    - run: echo "PROFILE=--profile=${{matrix.profile}}" >> $GITHUB_ENV
      shell: bash
    - run: echo "NORUN=1" >> $GITHUB_ENV
      shell: bash
      if: matrix.norun != '' || startsWith(matrix.target.tuple, 'thumb') || matrix.target.tuple == 'nvptx64-nvidia-cuda'
    - run: echo "STDARCH_TEST_EVERYTHING=1" >> $GITHUB_ENV
      shell: bash
      if: matrix.test_everything != ''
    - run: echo "STDARCH_DISABLE_ASSERT_INSTR=1" >> $GITHUB_ENV
      shell: bash
      if: matrix.disable_assert_instr != ''
    - run: echo "NOSTD=1" >> $GITHUB_ENV
      shell: bash
      if: startsWith(matrix.target.tuple, 'thumb') || matrix.target.tuple == 'nvptx64-nvidia-cuda'

    # Windows & OSX go straight to `run.sh` ...
    - run: ./ci/run.sh
      shell: bash
      if: matrix.target.os != 'ubuntu-latest' || startsWith(matrix.target.tuple, 'thumb')
      env:
        TARGET: ${{ matrix.target.tuple }}

    # ... while Linux goes to `run-docker.sh`
    - run: ./ci/run-docker.sh ${{ matrix.target.tuple }}
      shell: bash
      if: matrix.target.os == 'ubuntu-latest' && !startsWith(matrix.target.tuple, 'thumb')
      env:
        TARGET: ${{ matrix.target.tuple }}

  # Check that the generated files agree with the checked-in versions.
  check-stdarch-gen:
    needs: [style]
    name: Check stdarch-gen-{arm, loongarch} output
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
    - name: Install Rust
      run: rustup update nightly && rustup default nightly && rustup component add rustfmt
    - name: Check arm spec
      run: |
        cargo run --bin=stdarch-gen-arm --release -- crates/stdarch-gen-arm/spec
        git diff --exit-code
    - name: Check lsx.spec
      run: |
        cargo run --bin=stdarch-gen-loongarch --release -- crates/stdarch-gen-loongarch/lsx.spec
        git diff --exit-code
    - name: Check lasx.spec
      run: |
        cargo run --bin=stdarch-gen-loongarch --release -- crates/stdarch-gen-loongarch/lasx.spec
        git diff --exit-code

  conclusion:
    needs:
      - docs
      - verify
      - test
      - check-stdarch-gen
    runs-on: ubuntu-latest
    # We need to ensure this job does *not* get skipped if its dependencies fail,
    # because a skipped job is considered a success by GitHub. So we have to
    # overwrite `if:`. We use `!cancelled()` to ensure the job does still not get run
    # when the workflow is canceled manually.
    #
    # ALL THE PREVIOUS JOBS NEED TO BE ADDED TO THE `needs` SECTION OF THIS JOB!
    if: ${{ !cancelled() }} # make sure this is never "skipped"
    steps:
      - name: Conclusion
        run: |
          # Print the dependent jobs to see them in the CI log
          jq -C <<< '${{ toJson(needs) }}'
          # Check if all jobs that we depend on (in the needs array) were successful.
          jq --exit-status 'all(.result == "success")' <<< '${{ toJson(needs) }}'