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      <base href="https://bugs.freedesktop.org/" />
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        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - glbenchmark 2.7 assert"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=83239">83239</a>
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>idr@freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>glbenchmark 2.7 assert
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-3d-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>lemody@gmail.com
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>git
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Drivers/DRI/i965
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Mesa
          </td>
        </tr></table>
      <p>
        <div>
        <pre>With Mesa master (80771e4) glb2.7 does not start but instead says:

GLBenchmark: brw_fs_live_variables.cpp:141: void
brw::fs_live_variables::setup_def_use(): Assertion `ip == block->start_ip'
failed.

Bisected to:
------------------- 8< ------------------------------------
commit 20a849b4aa63c7fce96b04de674a4c70f054ed9c
Author: Matt Turner <<a href="mailto:mattst88@gmail.com">mattst88@gmail.com</a>>
Date:   Sat Jul 12 21:18:39 2014 -0700

    i965: Use basic-block aware insertion/removal functions.

    To avoid invalidating and recreating the control flow graph. Also stop
    invalidating the CFG in places we didn't add or remove an instruction.

    cfg calculations:     202951 -> 80307 (-60.43%)

    Reviewed-by: Topi Pohjolainen <<a href="mailto:topi.pohjolainen@intel.com">topi.pohjolainen@intel.com</a>></pre>
        </div>
      </p>
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