From https://github.com/llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   15136f1c09d9..73e23f899f2a  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 73e23f899f2a [AMDGPU] Change placeholder from `undef` to `poison` (#130858)