<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/91571>91571</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [BOLT] Bolt cannot correctly recognize tail calls on aarch64.
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            BOLT
      </td>
    </tr>

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

    <tr>
      <th>Reporter</th>
      <td>
          YuanSha0
      </td>
    </tr>
</table>

<pre>
    
I traced this function using GDB and found that the BR instruction is actually a tail call, but the result of BC.MIB->isTailCall() is false.
</pre>
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