<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/66396>66396</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            `simplifycfg<switch-to-lookup>` generates wrapping `add nsw`
        </td>
    </tr>

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

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

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

<pre>
    [Upstream Rust issue](https://github.com/rust-lang/rust/issues/115681)

This issue has been fixed by #65882. I'd like to merge that change into the `17.x` release branch so I can integrate that fix into Rust. A local cherry-pick succeeded cleanly.
</pre>
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