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    <head>
      <base href="https://llvm.org/bugs/" />
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - xorg segfault/fail to start since AMDGPU: Remove unused control flow intrinsic"
   href="https://llvm.org/bugs/show_bug.cgi?id=28483">28483</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>xorg segfault/fail to start since AMDGPU: Remove unused control flow intrinsic
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>libraries
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>trunk
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux
          </td>
        </tr>

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

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

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Backend: AMDGPU
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>adf.lists@gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=16715" name="attach_16715" title="xorg log with backtrace.">attachment 16715</a> <a href="attachment.cgi?id=16715&action=edit" title="xorg log with backtrace.">[details]</a></span>
xorg log with backtrace.

AMD Tonga R9 285 xserver 1.18 branch, git mesa master, agd5f drm-next-4.8-wip
kernel.

Since -

commit 5e2ec03cf41651f2c0ec895390e24c209b290591
Author: Matt Arsenault <<a href="mailto:Matthew.Arsenault@amd.com">Matthew.Arsenault@amd.com</a>>
Date:   Fri Jul 8 21:39:44 2016 +0000

    AMDGPU: Remove unused control flow intrinsic

    git-svn-id: <a href="https://llvm.org/svn/llvm-project/llvm/trunk@274939">https://llvm.org/svn/llvm-project/llvm/trunk@274939</a>
91177308-0d34-0410-b5e6-96231b3b80d8

Starting X either fails with a blank screen, nothing logged, or produces a
backtrace as attached.</pre>
        </div>
      </p>
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