ckquote>
       <p>
        The intent for this optimization pass is to catch all of the small, easy to catch peephole optimizations you might be interested in doing.
       </p>
       <dl class="simple">
        <dt>
         Right now, it does:
        </dt>
        <dd>
         <ul class="simple">
          <li>
           <p>
            Eliminate no-op ‘expand’ nodes
           </p>
          </li>
          <li>
           <p>
            Simply x.t().t() to x
           </p>
          </li>
   