<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/88006>88006</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Support `-x` for clang-cl
        </td>
    </tr>

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

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

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

<pre>
    `clang-cl -help` shows that `-x` is supported directly. It was added by #68921 to support CUDA/HIP. 

But `clang-cl -x c++-module` report an error
```
unsupported option '-x c++-module'; did you mean '/TC' or '/TP'?
```

Support `-x` for clang-cl, so that we can use `/clang:` to compile C++20 modules (#64118).

</pre>
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