.github/workflows/compiler-rt-libc-builtins-tests.yml

# Pre-commit CI for the compiler-rt + LLVM-libc builtins integration.
name: compiler-rt + libc Builtins Tests
permissions:
  contents: read
on:
  pull_request:
    paths:
      - "compiler-rt/lib/builtins/**"
      - "compiler-rt/test/builtins/**"
      - "libc/shared/builtins.h"
      - "libc/shared/builtins/**"
      - "libc/src/__support/builtins/**"
      - "libc/src/__support/FPUtil/**"
      - ".github/workflows/compiler-rt-libc-builtins-tests.yml"

jobs:
  build:
    name: builtins (${{ matrix.os }})
    if: github.repository_owner == 'llvm'
    runs-on: ${{ matrix.os }}
    container:
      image: ${{ (startsWith(matrix.os, 'ubuntu-24.04-arm') && 'ghcr.io/llvm/arm64v8/libc-ubuntu-24.04') || 'ghcr.io/llvm/libc-ubuntu-24.04' }}
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-24.04, ubuntu-24.04-arm]

    steps:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          persist-credentials: false

      - name: Configure CMake
        run: |
          cmake \
            -B build \
            -S runtimes \
            -DLLVM_ENABLE_RUNTIMES=compiler-rt \
            -G Ninja \
            -DCMAKE_C_COMPILER=clang-23 \
            -DCMAKE_CXX_COMPILER=clang++-23 \
            -DCMAKE_BUILD_TYPE=Release \
            -DLLVM_ENABLE_ASSERTIONS=ON \
            -DCOMPILER_RT_STANDALONE_BUILD=ON \
            -DCOMPILER_RT_USE_LIBC_MATH=ON \
            -DLLVM_EXTERNAL_LIT=$(which lit-23) \
            -DCOMPILER_RT_INCLUDE_TESTS=ON

      - name: Test compiler-rt builtins
        run: |
          cmake \
            --build build \
            --parallel \
            --target check-builtins