<span class="lineno">  601</span>    <span class="keywordflow">if</span>(old_buffer.origin_data())</div>
<div class="line"><a id="l00602" name="l00602"></a><span class="lineno">  602</span>    {</div>
<div class="line"><a id="l00603" name="l00603"></a><span class="lineno">  603</span>        <span class="comment">// destruct on old buffer</span></div>
<div class="line"><a id="l00604" name="l00604"></a><span class="lineno">  604</span>        kernel_destruct&lt;T&gt;(grid_dim, block_dim, stream, old_buffer);