<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/60904>60904</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [C2x] Support for _Atomic _BitInt(N)
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            c2x,
            rejects-valid
      </td>
    </tr>

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

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

<pre>
    Clang currently diagnoses use of `_Atomic _BitInt` as being invalid despite the C standard requiring support for it.
```
_Atomic _BitInt(32) val; // error: _Atomic cannot be applied to integer type '_BitInt(32)' 
```
An atomic `_BitInt(N)` is conceptually the same as an atomic structure containing a bit-field of width N, so it should be possible to support.
</pre>
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