<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/133660>133660</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            `__bf16` Type Support Macros
        </td>
    </tr>

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

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

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

<pre>
    I can't find any macro that can indicate the availability of the `__bf16` type, all I can find is hardware support macros but no generic type availability macros or anything set in `clang` or `<float.h>`.

This is needed for `Bfloat16` GSoC project in `libc`.

If the solution is to gather the hardware support  macros available in `clang` and define a macro for the general type support in `<float.h>`, I'd like to work on this before April 8th (the start of GSoC).
</pre>
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