Run limited selection of tests with slimcc (#237)

Author: tekknolagi

.github/workflows/ci.yml

@@ -69,6 +69,27 @@ jobs:
       run: CC=${{matrix.CC}} CFLAGS="-fsanitize=undefined ${{matrix.USE_STATIC_HEAP}}" uv run python compiler_tests.py
     - name: Run compiler tests with Valgrind
       run: CC=${{matrix.CC}} CFLAGS="${{matrix.USE_STATIC_HEAP}}" USE_VALGRIND=1 uv run python compiler_tests.py
+  run_compiler_unit_tests_other_cc:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: Update local package lists
+      run: sudo apt update
+    - name: Install build tools
+      run: sudo apt install --yes make
+    - name: Install uv
+      uses: astral-sh/setup-uv@v5
+    - name: Install Python
+      run: uv python install 3.10
+    - name: Pin Python
+      run: uv python pin 3.010
+    # slimcc
+    - name: Clone slimcc
+      run: git clone --depth 1 https://github.com/fuhsnn/slimcc
+    - name: Build slimcc
+      run: make -C slimcc test-stage2 -j4
+    - name: Run compiler tests with slimcc
+      run: CC=slimcc/slimcc uv run python compiler_tests.py
   run_unit_tests:
     needs: [run_interpreter_unit_tests, run_compiler_unit_tests]
     # Fake, unnecessary