<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/78488>78488</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Return type warning for `lookupExtensionByID` in release build
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

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

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

<pre>
    https://github.com/llvm/llvm-project/blob/0c6dc80531ed332e346934019095ad9518f465f3/llvm/lib/TargetParser/AArch64TargetParser.cpp#L156

```
/home/schrodingerzy/Documents/llvm/llvm-project/llvm/lib/TargetParser/AArch64TargetParser.cpp:157:1: warning: non-void function does not return a value in all control paths [-Wreturn-type]
}
```
</pre>
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