Merge pull request #15 from BerkeleyLab/add-flang-to-ci

Add LLVM Flang to CI

.github/workflows/build-with-flang.yml

@@ -0,0 +1,31 @@
+name: Build with LLVM Flang
+
+on: [push, pull_request]
+
+
+jobs:
+  Build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-24.04]
+      fail-fast: true
+    container: gmao/llvm-flang:latest
+    env:
+      FC: flang-new
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v2
+
+    - uses: fortran-lang/setup-fpm@v4
+      with:
+        github-token: ${{ secrets.GITHUB_TOKEN }}
+
+    - name: Build and Test with LLVM Flang
+      if: contains(matrix.os, 'ubuntu')
+      run: |
+        fpm --version
+        $FC --version
+        export FPM_FC=$FC
+        fpm test --flag "-mmlir -allow-assumed-rank -O3"