From https://github.com/llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   5cbf74b012c1..478ec6331258  main       -> origin/main
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  (use "git pull" to update your local branch)
Switched to branch 'main'
HEAD is now at 478ec6331258 [RISCV] Mark VFIRST and VCPOP as SignExtendingOpW (#77022)