From github.com:llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   5c29b64fda6a..8eac375a4bff  main       -> origin/main
Switched to branch 'main'
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HEAD is now at 8eac375a4bff Revert "[CGObjC] Allow clang.arc.attachedcall on -O0 (#164875)"