From github.com:llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   ca9a44ef4791..821935bb5544  main       -> origin/main
Switched to branch 'main'
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  (use "git pull" to update your local branch)
HEAD is now at 821935bb5544 [AArch64][GlobalISel] Combine Shuffles of G_CONCAT_VECTORS (#87489)