WIP

Author: ldionne

.ci/generate-buildkite-pipeline-premerge

@@ -54,6 +54,17 @@ echo "$modified_dirs" >&2
 
 . ./.ci/compute-projects.sh
 
+# If libc++ or one of the runtimes directories changed.
+if echo "$modified_dirs" | grep -q -E "^(libcxx|libcxxabi|libunwind|runtimes|cmake)$"; then
+  cat <<EOF
+- trigger: "libcxx-ci"
+  build:
+    message: "${buildMessage}"
+    commit: "${BUILDKITE_COMMIT}"
+    branch: "${BUILDKITE_BRANCH}"
+EOF
+fi
+
 # Figure out which projects need to be built on each platform
 all_projects="bolt clang clang-tools-extra compiler-rt cross-project-tests flang libc libclc lld lldb llvm mlir openmp polly pstl"
 modified_projects="$(keep-modified-projects ${all_projects})"