<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/83784>83784</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [PAC] Add FPAC feature
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            backend:AArch64
      </td>
    </tr>

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

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

<pre>
    Plus corresponding codegen bits to simplify auth + resign sequences

Downstream commits:
 - https://github.com/ahmedbougacha/llvm-project/commit/2db77b8f45a90961ce42ea895d9bd152c04a6ca6
 - https://github.com/ahmedbougacha/llvm-project/commit/8e019667ad512500520925fdd8ac09cb249ad387
</pre>
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