From github.com:llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   4ef5cef58134..88273a063c5a  main       -> origin/main
Switched to branch 'main'
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HEAD is now at 88273a063c5a [AArch64] Disable cortex-a53-835769 when compiling for armv8.1-a or later (#170649)