ass="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span><span class="stringliteral">    workgroupBarrier();</span></div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span><span class="stringliteral"></span> </div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span><span class="stringliteral">    // Down-sweep phase</span></div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span><span clas