From github.com:llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   29164f464b69..645c5b1e7664  main       -> origin/main
Switched to branch 'main'
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  (use "git pull" to update your local branch)
HEAD is now at 645c5b1e7664 [AArch64] Codegen for AArch64 Return Address Authentication Hardening (#176187)