benchmarks.yml

name: benchmarks

on:
  # allow to trigger manually (on default branch)
  workflow_dispatch:

  # run once a week
  schedule:
    - cron: '0 0 * * 0'

defaults:
  run:
    shell: bash

jobs:
  build-and-run:
    name: ${{ matrix.name }}
    runs-on: ${{ matrix.os }}

    strategy:
      matrix:

        include:
          # Linux
          - name: linux-gcc
            os: ubuntu-latest

          # macOS
          - name: macos-clang
            os: macos-latest

          # no Windows, as Kleenex generates non-portable C code

    steps:
      - name: Checkout Code
        uses: actions/checkout@v4

      - name: Setup Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.8'

      - name: Setup Java
        uses: actions/setup-java@v4
        with:
          distribution: 'adopt'
          java-version: '11'

      - name: Setup Common Prerequisites
        run: |
          case ${{ runner.os }} in
            Linux*)
              echo "CC=gcc" >> $GITHUB_ENV
              echo "CXX=g++" >> $GITHUB_ENV
              sudo apt update
              sudo apt install libre2-dev libbenchmark-dev
              ;;
            macOS*)
              sudo xcode-select -switch /Applications/Xcode.app
              echo "CC=$(xcrun -f clang)" >> $GITHUB_ENV
              echo "CXX=$(xcrun -f clang++)" >> $GITHUB_ENV
              echo "SDKROOT=$(xcodebuild -version -sdk macosx Path)" >> $GITHUB_ENV
              echo "$(xcodebuild -version -sdk macosx Path)" >> $GITHUB_PATH
              brew install re2 google-benchmark
              ;;
          esac
          pip install psutil

      - name: Configure
        run: |
          cmake -S . -B .build \
            -G "Unix Makefiles" \
            -DRE2C_BUILD_LIBS=ON \
            -DRE2C_BUILD_RE2D=OFF \
            -DRE2C_BUILD_RE2GO=OFF \
            -DRE2C_BUILD_RE2HS=OFF \
            -DRE2C_BUILD_RE2JAVA=OFF \
            -DRE2C_BUILD_RE2JS=OFF \
            -DRE2C_BUILD_RE2OCAML=OFF \
            -DRE2C_BUILD_RE2PY=OFF \
            -DRE2C_BUILD_RE2RUST=OFF \
            -DRE2C_BUILD_RE2V=OFF \
            -DRE2C_BUILD_RE2ZIG=OFF \
            -DRE2C_BUILD_BENCHMARKS=ON \
            -DCMAKE_CXX_FLAGS="-O3"

      - name: Build
        run: cmake --build .build

      - name: Run submatch DFA AOT benchmark
        working-directory: .build/benchmarks/submatch_dfa_aot
        run: |
          ./run.py --quickverify \
            && ./run.py --repetitions 5 --output results.json \
            && cat results.json

      - name: Run submatch DFA JIT benchmark
        working-directory: .build/benchmarks/submatch_dfa_jit
        run: ./bench_submatch_dfa_jit

      - name: Run submatch Java benchmark (ReTdfa)
        working-directory: .build/benchmarks/submatch_java
        run: ./run.py

      - name: Run submatch NFA benchmark
        working-directory: .build/benchmarks/submatch_nfa
        run: ./bench_submatch_nfa