<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=http://email.email.llvm.org/c/eJylks2OmzAUhZ_GbKwiYweIFyyY0EmlKpqomZHaFTLGEFqDkW2qzNv38pOOKnVWgxD3WNccvmNuZerX7PLjcrocy6dz-eXp8lw-f8vPZX74ijuHB-Oxm8bRWK9qbAZ8fPzOsRjqWUQkxC9jLbzCTg1171ospDS27oZWv4aIFIjk6zMfsLqJftQKmwY3otNg55XziG07MFyuvPtsFdH9TLYCInrA76AiyleXz7dRyRnVKjfpf90FMFhrLO6Vc6JVG5n0k9D_2_8RGozYA1aDNPNZgCtG8QO5sQbeIjdClsLXUjUoLoI6YzVnXARi8ldjs3q0ylRWBJPV2dX70c1s9BHutvPXqQql6WGh9e97-TRa8xPSw7JzblIOREw5YcE1S5ikLE6bJI3TRNIkSXacp6loOKFKqibQolLaZYCJKK0myErnhPNCyF-QHz6fn4rj-eWt08tZA_zHCbuMEhpFlO6jlNGIhnvC9jLZSVUlCakERzuiehibcPYJjW0Dmy2WwOqgqTvn3VtTONe1g1JboPtpbry-83ppbYniAvTpsNZ5wv-qiIDERedEBaP7zv8OljDZkuQPwN8DAQ>52903</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [AMDGPU][MC][GFX9][GFX10] Disable SYSMSG_OP_HOST_TRAP_ACK
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            bug,
            backend:AMDGPU,
            mc
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
            dpreobra
      </td>
    </tr>

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

<pre>
    SYSMSG_OP_HOST_TRAP_ACK is not supported on GFX9 and GFX10. Update sendmsg accordingly.

An example of failed test:
    s_sendmsg sendmsg(MSG_SYSMSG, SYSMSG_OP_HOST_TRAP_ACK)
Expected result:
    an error message
Actual result:
    s_sendmsg sendmsg(MSG_SYSMSG, SYSMSG_OP_HOST_TRAP_ACK) ; encoding: [0x3f,0x00,0x90,0xbf]
</pre>
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