From https://github.com/llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   4bc9d29fbaa7..4a9fdda9882d  main       -> origin/main
Auto packing the repository in background for optimum performance.
See "git help gc" for manual housekeeping.
Switched to branch 'main'
Your branch is behind 'origin/main' by 3 commits, and can be fast-forwarded.
  (use "git pull" to update your local branch)
HEAD is now at 4a9fdda9882d [MCA] Enable customization of individual instructions (#155420)