<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/175771>175771</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            llvmbot did not add a backend:AArch64 label to a PR
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            infrastructure
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          pfusik
      </td>
    </tr>
</table>

<pre>
    I created PR #175739

Expected:
llvmbot added the backend:AArch64 label
Subscribers notification.

Actual:
Label not added.
No email notification.
</pre>
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