<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/81779>81779</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [HLSL] Disallow 16-bit integer types if native 16-bit types are disabled
        </td>
    </tr>

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

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

    <tr>
      <th>Reporter</th>
      <td>
          llvm-beanz
      </td>
    </tr>
</table>

<pre>
    DXC disallows declarations of 16-bit types if the native 16-bit types are disabled. In Clang, we `#ifdef` out the 16-bit intrinsics to prevent generating 16-bit types.

### Acceptance Criteria
Test cases that produce diagnostics when users use 16-bit types without enabling native 16-bit types.
</pre>
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