simd_pr_workflow.yml

name: SIMD PR Workflow

concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref || github.ref }}
  cancel-in-progress: true

on:
  push:
    branches:
      - simd_for_upstream
    paths:
      - 'libcxx/test/std/experimental/simd/*'
      - 'libcxx/include/experimental/__simd/*'
      - 'libcxx/include/experimental/simd'
  pull_request:
    branches:    
      - simd_for_upstream
    paths:
      - 'libcxx/test/std/experimental/simd/*'
      - 'libcxx/include/experimental/__simd/*'
      - 'libcxx/include/experimental/simd'

jobs:
  build_and_test:
    runs-on: ubuntu-22.04
    steps:
      - name: Checkout repository
        uses: actions/checkout@v2

      - name: Install dependencies
        run: |
          sudo apt update
          sudo apt install ninja-build cmake python3 g++

      - name: Configure and build LLVM
        run: |
          mkdir build
          cmake -G Ninja -S llvm -B build -DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_PROJECTS="clang" -DLLVM_ENABLE_RUNTIMES="libcxx;libcxxabi;libunwind" -DLLVM_RUNTIME_TARGETS="x86_64-unknown-linux-gnu"
          ninja -C build runtimes

      - name: Build test dependencies
        run: |
          ninja -C build runtimes-test-depends

      - name: Run SIMD tests and check results
        run: |
          output=$(build/bin/llvm-lit --param=std=c++17 -sv --show-unsupported --xunit-xml-output test-results.xml --time-tests build/runtimes/runtimes-x86_64-unknown-linux-gnu-bins/libcxx/test/std/experimental/simd/)
          echo "$output"
          failures=$(cat test-results.xml | grep -oP 'failures="\K\d+')
          if [ "$failures" -ne 0 ]; then
            echo "There were $failures test failures"
            exit 1
          fi