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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Assertion failure with UE4Editor and sb enabled"
href="https://bugs.freedesktop.org/show_bug.cgi?id=102387">102387</a>
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<th>Summary</th>
<td>Assertion failure with UE4Editor and sb enabled
</td>
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<th>Product</th>
<td>Mesa
</td>
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<th>Version</th>
<td>git
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>Drivers/Gallium/r600
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
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<th>Reporter</th>
<td>gw.fossdev@gmail.com
</td>
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<th>QA Contact</th>
<td>dri-devel@lists.freedesktop.org
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=133745" name="attach_133745" title="TGSI and byte code of the buggy shader">attachment 133745</a> <a href="attachment.cgi?id=133745&action=edit" title="TGSI and byte code of the buggy shader">[details]</a></span>
TGSI and byte code of the buggy shader
When running UE4Editor (4.17) on BARTS with -opengl3 and mesa (1e696b9) is
compiled in debug mode I get the following assertion failure on one shader
(attached), that then leads to UE4Editor shutting down:
error at : MUL_IEEE <a href="mailto:R17.x.5F@R124.x">R17.x.5F@R124.x</a>, <a href="mailto:R14.x.5F@R124.x">R14.x.5F@R124.x</a>, R90.x.22||<a href="mailto:F@R2.w">F@R2.w</a>
: expected operand value R90.x.22||<a href="mailto:F@R2.w">F@R2.w</a>, gpr contains t39||<a href="mailto:FP@R2.w">FP@R2.w</a>
sb/sb_ra_checker.cpp:46:run: Assertion `sh.errors.empty()' failed.
Sometimes it happens right away, when loading the assets, sometimes I have to
load a specific level. I guess it depends on what assets are actually
displayed.
If I disable the assertion then I can use UE4Editor (I still need to add a
patch to work around to a problem introduced by another shader that for some
bug in UE4 exceeds the limits of the GPRs, but this has nothing to do which
this assertion failure).
Best,
Gert</pre>
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