<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/83117>83117</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [Question] Which warning flags do I need for switch enum handling now?
        </td>
    </tr>

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

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

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

<pre>
    I want the following behavior:

- Error when `switch(enumVal)` and not all cases are covered and also there is no `default`, ie. I want to be able to use default with enums to explicitly allow them without having to fallthrough all the values I don't want special cases for, but have a hard stop when I edit an enum and don't handle all the switch cases without a default because that's most likely a bug.
- Warning when `switch(enumVal)` and all cases are covered and there is a `default`, ie. all cases are covered and default is probably wrong because later editing the enum will make this a non-warning and probably produce a bug
- Warning when `switch(notEnumValPerhapsAnIntOrSomething)` and there is no `default`, because I probably want to do at lest something, or explicitly nothing to show that I didn't forget anything.

How do I achieve this now?
</pre>
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