<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=http://email.email.llvm.org/c/eJylUsuO2zAM_Br5QtSQZTuJDzpkEbToYdFF0X6AHoytrSwZEr0L9-urOGl77KEAIZEckBoNqaPd5OcrvCOonNcZgR24929zrWY7mlDnWquUHKaSB5dBeTcGtLeCWW2QcI5vCI5ABcv4hfGzUWtG-LJgeH6BTy_fQS2Ld0aRiyFDDEATwvn5smMUQSNkWs0PiAneUwyj3-6N8hbMVBLuJ9r6nrqfX3GJiQoJvQHruFHJR42Joveurqxs7dAOqlIrTTHJVxsxXQtcrcnLiWjJrD0z8bHY6GhadW3iXILbtx_XhyXFVzRUQldkwVycvj0eu2qSnR5UfypBY7iw_NrxdjgM2OLxMBwbjZVXGn2WrH9iQsSiw7wUh_WX6v-fd1JwUaxpmlPXN12NKBreCNPaq-hOh6HogbNyvt6HGNNYJbm31OuYC-hdpvwXLEO_zRMfbP9o9SBMjjzKb9O_18LQqrzfIET6vSPVzl3uxH8BUzPJJw>53774</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            The `llvm.amdgcn.s.barrier` is actually not aligned
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            openmp
      </td>
    </tr>

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

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

<pre>
    If we assume `llvm.amdgcn.s.barrier` is aligned we may remove it and
cause OpenMP GPU applications on the AMD GPU to be stuck or wrongly
synchronized.

Reported by @carlobertolli.
</pre>
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