[llvm] workflows/premerge: Add macOS testing for release branch (PR #124303)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-github-workflow

Author: Tom Stellard (tstellar)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/124303.diff


1 Files Affected:

- (modified) .github/workflows/premerge.yaml (+68) 


``````````diff
diff --git a/.github/workflows/premerge.yaml b/.github/workflows/premerge.yaml
index 30f4fc807f3a57..bdbe0537c89a62 100644
--- a/.github/workflows/premerge.yaml
+++ b/.github/workflows/premerge.yaml
@@ -10,6 +10,7 @@ on:
   push:
     branches:
       - 'main'
+      - 'release/**'
 
 jobs:
   premerge-checks-linux:
@@ -70,3 +71,70 @@ jobs:
           export CXX=/opt/llvm/bin/clang++
 
           ./.ci/monolithic-linux.sh "$(echo ${linux_projects} | tr ' ' ';')" "$(echo ${linux_check_targets})" "$(echo ${linux_runtimes} | tr ' ' ';')" "$(echo ${linux_runtime_check_targets})"
+
+
+  permerge-check-macos:
+    runs-on: macos-14
+    if: >-
+      github.repository_owner == 'llvm' &&
+      (startswith(github.ref_name, 'release/') ||
+       startswith(github.base_ref, 'refs/heads/release/')
+    steps:
+      - name: Checkout LLVM
+        uses: actions/checkout at v4
+        with:
+          fetch-depth: 2
+      - name: Setup ccache
+        uses: hendrikmuhs/ccache-action at v1.2.14
+        with:
+          max-size: "2000M"
+      - name: Install Ninja
+        uses: llvm/actions/install-ninja at main
+      - name: Build and Test
+        run: |
+          git config --global --add safe.directory '*'
+
+          modified_files=$(git diff --name-only HEAD~1...HEAD)
+          modified_dirs=$(echo "$modified_files" | cut -d'/' -f1 | sort -u)
+
+          echo $modified_files
+          echo $modified_dirs
+
+          . ./.ci/compute-projects.sh
+
+          all_projects="clang clang-tools-extra lld lldb llvm mlir"
+          modified_projects="$(keep-modified-projects ${all_projects})"
+
+          mac_check_targets=$(check-targets ${modified_projects} | sort | uniq | tr '\n' ' ')
+          mac_projects=$(add-dependencies ${modified_projects} | sort | uniq | tr '\n' ' ')
+
+          mac_runtimes_to_test=$(compute-runtimes-to-test ${modified_projects})
+          mac_runtime_check_targets=$(check-targets ${mac_runtimes_to_test} | sort | uniq | tr '\n' ' ')
+          mac_runtimes=$(echo ${mac_runtimes_to_test} | tr ' ' '\n' | sort | uniq | tr '\n' ' ')
+
+          if [[ "${mac_projects}" == "" ]]; then
+            echo "No projects to build"
+            exit 0
+          fi
+
+          echo "Projects to test: ${modified_projects}"
+          echo "Runtimes to test: ${mac_runtimes_to_test}"
+          echo "Building projects: ${mac_projects}"
+          echo "Running project checks targets: ${mac_check_targets}"
+          echo "Building runtimes: ${mac_runtimes}"
+          echo "Running runtimes checks targets: ${mac_runtime_check_targets}"
+
+          # -DLLVM_DISABLE_ASSEMBLY_FILES=ON is for
+          # https://github.com/llvm/llvm-project/issues/81967
+          cmake -G Ninja \
+                -B build \
+                -S llvm \
+                -DLLVM_ENABLE_PROJECTS="$(echo ${mac_projects} | tr ' ' ';')" \
+                -DLLVM_ENABLE_RUNTIMES="$(echo ${mac_runtimes} | tr ' ' ';')" \
+                -DLLVM_DISABLE_ASSEMBLY_FILES=ON \
+                -DCMAKE_BUILD_TYPE=Release \
+                -DLLVM_ENABLE_ASSERTIONS=ON \
+                -DCMAKE_C_COMPILER_LAUNCHER=ccache \
+                -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
+
+          ninja -C build  $mac_check_targets $mac_runtime_check_targets

``````````

</details>


https://github.com/llvm/llvm-project/pull/124303