Add swiftlang llvm for bounds-safety RFC

.github/workflows/build-daily-clang_swiftlang.yml

@@ -0,0 +1,67 @@
+### DO NOT EDIT - created by a script ###
+name: clang_swiftlang via clang swiftlang-trunk
+
+on:
+  schedule:
+    - cron: '0 0 * * *'
+  workflow_dispatch:
+
+jobs:
+  check-activity:
+    runs-on: ubuntu-latest
+    outputs:
+      should_build: ${{ steps.check.outputs.should_build }}
+    steps:
+      - name: Check for recent commits
+        id: check
+        run: |
+          REPOS='["https://github.com/swiftlang/llvm-project/tree/next"]'
+          STALE_DAYS=7
+
+          SINCE_DATE=$(date -d "${STALE_DAYS} days ago" --iso-8601=seconds)
+          echo "Checking for commits since ${SINCE_DATE} (${STALE_DAYS} days ago)"
+          HAS_RECENT=false
+
+          for repo in $(echo "$REPOS" | jq -r '.[]'); do
+            REPO_PATH=$(echo "$repo" | sed -E 's|https://github.com/([^/]+/[^/]+).*|\1|')
+            BRANCH=$(echo "$repo" | sed -n -E 's|https://github.com/[^/]+/[^/]+/tree/(.+)|\1|p')
+
+            if [ -n "$BRANCH" ]; then
+              echo "Checking $REPO_PATH (branch: $BRANCH) for recent commits..."
+              COMMITS=$(curl -sf "https://api.github.com/repos/${REPO_PATH}/commits?sha=${BRANCH}&since=${SINCE_DATE}&per_page=1" || echo "[]")
+            else
+              echo "Checking $REPO_PATH (default branch) for recent commits..."
+              COMMITS=$(curl -sf "https://api.github.com/repos/${REPO_PATH}/commits?since=${SINCE_DATE}&per_page=1" || echo "[]")
+            fi
+
+            if [ "$(echo "$COMMITS" | jq 'length')" -gt 0 ]; then
+              echo "Found recent commits in $repo"
+              HAS_RECENT=true
+              break
+            fi
+          done
+
+          if [ "$HAS_RECENT" = "true" ]; then
+            echo "should_build=true" >> "$GITHUB_OUTPUT"
+          else
+            echo "No recent commits in any repo (within ${STALE_DAYS} days), skipping build"
+            echo "should_build=false" >> "$GITHUB_OUTPUT"
+          fi
+
+  daily-build:
+    needs: check-activity
+    if: ${{ needs.check-activity.outputs.should_build == 'true' }}
+    runs-on: [ 'self-hosted', 'ce', 'linux', 'x64' ]
+    steps:
+      - name: Start from a clean directory
+        uses: AutoModality/action-clean@v1.1.0
+      - uses: actions/checkout@v4
+      - name: Run the build
+        uses: ./.github/actions/daily-build
+        with:
+          image: clang
+          name: clang_swiftlang
+          command: build.sh
+          args: swiftlang-trunk
+          AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
+          AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}

build-status.md

@@ -44,6 +44,7 @@
 * [![Status](https://github.com/compiler-explorer/compiler-workflows/actions/workflows//build-daily-clang_patmat.yml/badge.svg)](https://github.com/compiler-explorer/compiler-workflows/actions/workflows//build-daily-clang_patmat.yml)![Last success](https://img.shields.io/badge/dynamic/json?color=success&label=Last+OK&query=%24.last_success.timestamp&url=https%3A%2F%2Flambda.compiler-explorer.com%2Fcompiler-build%2Fclang_patmat)![Last build](https://img.shields.io/badge/dynamic/json?color=yellow&label=Last+build&query=%24.last_build.timestamp&url=https%3A%2F%2Flambda.compiler-explorer.com%2Fcompiler-build%2Fclang_patmat)
 * [![Status](https://github.com/compiler-explorer/compiler-workflows/actions/workflows//build-daily-clang_reflection.yml/badge.svg)](https://github.com/compiler-explorer/compiler-workflows/actions/workflows//build-daily-clang_reflection.yml)![Last success](https://img.shields.io/badge/dynamic/json?color=success&label=Last+OK&query=%24.last_success.timestamp&url=https%3A%2F%2Flambda.compiler-explorer.com%2Fcompiler-build%2Fclang_reflection)![Last build](https://img.shields.io/badge/dynamic/json?color=yellow&label=Last+build&query=%24.last_build.timestamp&url=https%3A%2F%2Flambda.compiler-explorer.com%2Fcompiler-build%2Fclang_reflection)
 * [![Status](https://github.com/compiler-explorer/compiler-workflows/actions/workflows//build-daily-clang_relocatable.yml/badge.svg)](https://github.com/compiler-explorer/compiler-workflows/actions/workflows//build-daily-clang_relocatable.yml)![Last success](https://img.shields.io/badge/dynamic/json?color=success&label=Last+OK&query=%24.last_success.timestamp&url=https%3A%2F%2Flambda.compiler-explorer.com%2Fcompiler-build%2Fclang_relocatable)![Last build](https://img.shields.io/badge/dynamic/json?color=yellow&label=Last+build&query=%24.last_build.timestamp&url=https%3A%2F%2Flambda.compiler-explorer.com%2Fcompiler-build%2Fclang_relocatable)
+* [![Status](https://github.com/compiler-explorer/compiler-workflows/actions/workflows//build-daily-clang_swiftlang.yml/badge.svg)](https://github.com/compiler-explorer/compiler-workflows/actions/workflows//build-daily-clang_swiftlang.yml)![Last success](https://img.shields.io/badge/dynamic/json?color=success&label=Last+OK&query=%24.last_success.timestamp&url=https%3A%2F%2Flambda.compiler-explorer.com%2Fcompiler-build%2Fclang_swiftlang)![Last build](https://img.shields.io/badge/dynamic/json?color=yellow&label=Last+build&query=%24.last_build.timestamp&url=https%3A%2F%2Flambda.compiler-explorer.com%2Fcompiler-build%2Fclang_swiftlang)
 * [![Status](https://github.com/compiler-explorer/compiler-workflows/actions/workflows//build-daily-clang_variadic_friends.yml/badge.svg)](https://github.com/compiler-explorer/compiler-workflows/actions/workflows//build-daily-clang_variadic_friends.yml)![Last success](https://img.shields.io/badge/dynamic/json?color=success&label=Last+OK&query=%24.last_success.timestamp&url=https%3A%2F%2Flambda.compiler-explorer.com%2Fcompiler-build%2Fclang_variadic_friends)![Last build](https://img.shields.io/badge/dynamic/json?color=yellow&label=Last+build&query=%24.last_build.timestamp&url=https%3A%2F%2Flambda.compiler-explorer.com%2Fcompiler-build%2Fclang_variadic_friends)
 * [![Status](https://github.com/compiler-explorer/compiler-workflows/actions/workflows//build-daily-clspv.yml/badge.svg)](https://github.com/compiler-explorer/compiler-workflows/actions/workflows//build-daily-clspv.yml)![Last success](https://img.shields.io/badge/dynamic/json?color=success&label=Last+OK&query=%24.last_success.timestamp&url=https%3A%2F%2Flambda.compiler-explorer.com%2Fcompiler-build%2Fclspv)![Last build](https://img.shields.io/badge/dynamic/json?color=yellow&label=Last+build&query=%24.last_build.timestamp&url=https%3A%2F%2Flambda.compiler-explorer.com%2Fcompiler-build%2Fclspv)
 * [![Status](https://github.com/compiler-explorer/compiler-workflows/actions/workflows//build-daily-cppfront.yml/badge.svg)](https://github.com/compiler-explorer/compiler-workflows/actions/workflows//build-daily-cppfront.yml)![Last success](https://img.shields.io/badge/dynamic/json?color=success&label=Last+OK&query=%24.last_success.timestamp&url=https%3A%2F%2Flambda.compiler-explorer.com%2Fcompiler-build%2Fcppfront)![Last build](https://img.shields.io/badge/dynamic/json?color=yellow&label=Last+build&query=%24.last_build.timestamp&url=https%3A%2F%2Flambda.compiler-explorer.com%2Fcompiler-build%2Fcppfront)

compilers.yaml

@@ -57,6 +57,7 @@ compilers:
     - { image: clang, name: clang_relocatable, args: relocatable-trunk, repos: ["https://github.com/Quuxplusone/llvm-project/tree/trivially-relocatable"] }
     - { image: clang, name: clang_variadic_friends, args: variadic-friends-trunk, repos: ["https://github.com/dancrn/llvm-project/tree/cxx-variadic-friends"] }
     - { image: clang, name: clang_hana, args: hana-clang-trunk, repos: ["https://github.com/hanickadot/llvm-project/tree/compiler-explorer/hana-clang"] }
+    - { image: clang, name: clang_swiftlang, args: swiftlang-trunk, repos: ["https://github.com/swiftlang/llvm-project/tree/next"] }
     - { image: dotnet, name: dotnet, command: build.sh, args: trunk }
     - { image: clang, name: mlir_trunk, args: mlir-trunk }
     - { image: go, name: go }