From github.com:llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   dc3a902abed7..1978b15e0c3b  main       -> origin/main
Switched to branch 'main'
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HEAD is now at 1978b15e0c3b [X86] Add support for llvm.clmul.i64 on 32-bit targets (#176449)