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      <base href="https://bugs.freedesktop.org/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - opt_combine_constants failing fabsf(reg->f) == table.imm[i].val assertion"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=93560">93560</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>opt_combine_constants failing fabsf(reg->f) == table.imm[i].val assertion
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Mesa
          </td>
        </tr>

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

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

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

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

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

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

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

        <tr>
          <th>Assignee</th>
          <td>mattst88@gmail.com
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>kenneth@whitecape.org
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-3d-bugs@lists.freedesktop.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>$ shader_runner shaders/closed/UnrealEngine4/PlatformerGame/232.shader_test
-auto

shader_runner: brw_fs_combine_constants.cpp:302: bool
fs_visitor::opt_combine_constants(): Assertion `fabsf(reg->f) ==
table.imm[i].val' failed.

It looks like the value is some kind of NaN:

(gdb) p reg->f
$1 = -nan(0x400000)
(gdb) p table.imm[i].val
$2 = nan(0x400000)</pre>
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