m feedback writes issued after
                        the barrier will wait on the completion of all shader writes issued
                        prior to the barrier.
                    </p>
            </dd>
            <dt>
              <span class="term">
                <code class="constant">GL_ATOMIC_COUNTER_BARRIER_BIT</code>
              </span>
            </dt>
            <dd>
              <p>
                        Accesses to atomic counters after the
                        barrier will