From github.com:llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   4a6f7b11e38e..e0500fa504b2  main       -> origin/main
Switched to branch 'main'
Your branch is behind 'origin/main' by 1 commit, and can be fast-forwarded.
  (use "git pull" to update your local branch)
HEAD is now at e0500fa504b2 DAG: Preserve poison in all-undef build_vector/concat_vectors folds (#206947)