<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=http://email.email.llvm.org/c/eJylUcFu5SAM_BpyQY148JKQA4fua1faQ9VTP4AQJ2FF4Ak7XW2_viStdlv1WMnCHiyPxp4hjX_Nr8hZ8-MSbJz5Ja1XHyDzJ4TM7iXTgvU98gcbNxtYc8ekXoiuyNQtkz9LuH2uDuF5rVOey8eYHJa0E-DbWL3QGpjsOS2QgXvkMfEVIvkUeZp4upJf_Ys98BTsjBw3t3CLnLXi5vFUXiYvb2D-CCaL9I6BXF2NRo296m1lN1pSNs-eKGWfclohVVsO5rP42dOyDbVLawH7Du_p5prTb3BUoEfcYF-oUa0-VYvpOyc6rUSrzzA0XSthmlyrdTta5UCqKtgBAppyUyZlhD_8oCh1OV_1fQXeSCFLiF6Kk2q62nWdFVp1Sg19p88DOwtYrQ__TKmyOSiHbcbSDB4J_zctop8jwCG4KCRPAczjV09s8S4m4sXgbXcPxuqQZg5dr9JtvAg>53681</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Optimization flags are not documented
        </td>
    </tr>

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

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

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

<pre>
    In [Clang Compiler User’s Manual](https://clang.llvm.org/docs/UsersManual.html) there is no mention of optimization flags such as `-O1`, `-Og`, `-Ofast`, etc.
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJxlUMuO3CAQ_Bp8QWsxMH5w4JBMEmkP0Z7yAYDbNhGGEd3e1e7XB3tXeShSi6ZodVFVLk-v5jFx1n2-RZsWfsvbPUQo_AdCYV8lGwXTGvl3m3YbWfeFyXEluiNTn5j8Vssfe22Mz1uby1IfpuyxtoMA39falbbIpOa0QgEekKfMN0gUcuJ55vlOYQtv9sRztAty3P3KLXLWi4enSz2ZvL2D5W8wW6QPDOTbZjJq0krbhgJFME__E9sqIGXiVeV-SICp2Us0_3paAq27a33eKjisfbSHe8k_wVOFAXGHw2en-vHSrKYfvPNKy4ueh2sntLPad76_Qu-dE9PcROsgoqlRMykTvPCTot5rqk0wUshaQktxUd3Q-mGwYlSDUk4P49Wxq4DNhvg76aaYU5LbF6zDGJDwz9AihiUBnN9VfrvTmot5DkS5hFzyBrk5BZjTwC-OnKcU">