name: CI Benchmarks
on:
  pull_request:
    branches: [master]

env:
  CARGO_TERM_COLOR: always
  RUSTFLAGS: "-C target-cpu=native"

jobs:
  benchmark:
    name: Run benchmarks
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Install Rust
        uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: stable
          override: true

      - name: Install critcmp
        run: cargo install critcmp

      - name: Run benchmarks (master)
        run: |
          git checkout master
          cargo bench --bench parse -- --save-baseline master

      - name: Run benchmarks (PR)
        run: |
          git checkout ${{ github.event.pull_request.head.sha }}
          cargo bench --bench parse -- --save-baseline pr-${{ github.event.pull_request.number }}-${{ github.event.pull_request.head.sha }}

      - name: Compare benchmarks
        run: |
          critcmp -t 5 master pr-${{ github.event.pull_request.number }}-${{ github.event.pull_request.head.sha }}

  benchmark-x64:
    name: Run x64 benchmarks
    runs-on: ubuntu-latest
    strategy:
      matrix:
        feature: [swar, sse42, avx2]
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Install Rust
        uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: stable
          override: true

      - name: Install critcmp
        run: cargo install critcmp

      - name: Run benchmarks (master)
        run: |
          git checkout master
          cargo bench --bench parse -- --save-baseline master-${{ matrix.feature }}
        env:
          CARGO_CFG_HTTPARSE_DISABLE_SIMD: ${{ matrix.feature == 'swar' && '1' || '0' }}
          RUSTFLAGS: ${{ matrix.feature != 'swar' && format('-C target-feature=+{0}', matrix.feature) || '' }}

      - name: Run benchmarks (PR)
        run: |
          git checkout ${{ github.event.pull_request.head.sha }}
          cargo bench --bench parse -- --save-baseline pr-${{ github.event.pull_request.number }}-${{ github.event.pull_request.head.sha }}-${{ matrix.feature }}
        env:
          CARGO_CFG_HTTPARSE_DISABLE_SIMD: ${{ matrix.feature == 'swar' && '1' || '0' }}
          RUSTFLAGS: ${{ matrix.feature != 'swar' && format('-C target-feature=+{0}', matrix.feature) || '' }}

      - name: Compare benchmarks
        run: |
          critcmp -t 5 master-${{ matrix.feature }} pr-${{ github.event.pull_request.number }}-${{ github.event.pull_request.head.sha }}-${{ matrix.feature }}

  benchmark-aarch64:
    name: Run aarch64 benchmarks
    runs-on: macos-latest
    strategy:
      matrix:
        feature: [swar, neon]
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Install Rust
        uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: stable
          override: true

      - name: Install critcmp
        run: cargo install critcmp

      - name: Run benchmarks (master)
        run: |
          git checkout master
          cargo bench --bench parse -- --save-baseline master-aarch64-${{ matrix.feature }}
        env:
          CARGO_CFG_HTTPARSE_DISABLE_SIMD: ${{ matrix.feature == 'swar' && '1' || '0' }}
          RUSTFLAGS: ${{ matrix.feature == 'neon' && '-C target-feature=+neon' || '' }}

      - name: Run benchmarks (PR)
        run: |
          git checkout ${{ github.event.pull_request.head.sha }}
          cargo bench --bench parse -- --save-baseline pr-${{ github.event.pull_request.number }}-${{ github.event.pull_request.head.sha }}-aarch64-${{ matrix.feature }}
        env:
          CARGO_CFG_HTTPARSE_DISABLE_SIMD: ${{ matrix.feature == 'swar' && '1' || '0' }}
          RUSTFLAGS: ${{ matrix.feature == 'neon' && '-C target-feature=+neon' || '' }}

      - name: Compare benchmarks
        run: |
          critcmp -t 5 master-aarch64-${{ matrix.feature }} pr-${{ github.event.pull_request.number }}-${{ github.event.pull_request.head.sha }}-aarch64-${{ matrix.feature }}