Add missing clang to the monolithic pre-merge build

[joker-eph]

Clang has a custom separate pipeline integrated with libc++ that only runs in release mode. It means that changes which touches only clang won't run the clang tests in the configuration used by LLVM premerge and will break it unknowingly.

[llvmbot]

@llvm/pr-subscribers-clang

Author: Mehdi Amini (joker-eph)

Changes

Clang has a custom separate pipeline integrated with libc++ that only runs in release mode. It means that changes which touches only clang won't run the clang tests in the configuration used by LLVM premerge and will break it unknowingly.

---

Full diff: https://github.com/llvm/llvm-project/pull/85354.diff

2 Files Affected:

• (modified) .ci/generate-buildkite-pipeline-premerge (+1-1)
• (added) clang/empty_trigger ()

diff --git a/.ci/generate-buildkite-pipeline-premerge b/.ci/generate-buildkite-pipeline-premerge
index 4ebf304e23d587..b0a995dc8d7df4 100755
--- a/.ci/generate-buildkite-pipeline-premerge
+++ b/.ci/generate-buildkite-pipeline-premerge
@@ -224,7 +224,7 @@ fi
 # needs while letting them run on the infrastructure provided by LLVM.
 
 # Figure out which projects need to be built on each platform
-all_projects="bolt clang-tools-extra compiler-rt cross-project-tests flang libc libclc lld lldb llvm mlir openmp polly pstl"
+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})"
 
 linux_projects_to_test=$(exclude-linux $(compute-projects-to-test ${modified_projects}))
diff --git a/clang/empty_trigger b/clang/empty_trigger
new file mode 100644
index 00000000000000..e69de29bb2d1d6

[tstellar]

Good catch.