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<base href="https://bugs.freedesktop.org/" />
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<th>Priority</th>
<td>high
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [SNB Bisected]Ogles3conform GL3Tests_transform_feedback_transform_feedback_max_separate.test fails"
href="https://bugs.freedesktop.org/show_bug.cgi?id=73954">73954</a>
</td>
</tr>
<tr>
<th>CC</th>
<td>idr@freedesktop.org
</td>
</tr>
<tr>
<th>Assignee</th>
<td>mattst88@gmail.com
</td>
</tr>
<tr>
<th>Summary</th>
<td>[SNB Bisected]Ogles3conform GL3Tests_transform_feedback_transform_feedback_max_separate.test fails
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-3d-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>major
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>huax.lu@intel.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>Drivers/DRI/i965
</td>
</tr>
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<th>Product</th>
<td>Mesa
</td>
</tr></table>
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<pre>Created <span class=""><a href="attachment.cgi?id=92633" name="attach_92633" title="output">attachment 92633</a> <a href="attachment.cgi?id=92633&action=edit" title="output">[details]</a></span>
output
System Environment:
--------------------------
Platform: Sandybridge
Libdrm: (master)libdrm-2.4.52
Mesa: (master)1032c33cb93f1e8839be0f743b81492c2ca87e39
Xserver:
(master)xorg-server-1.15.0-1-ga92c6406e7f6c0b74fb1cb9361ad904facc0f722
Xf86_video_intel:(master)2.99.907-46-g2c441079cbd52902d356b652659e2be84726940e
Cairo: (master)2a7f133639bed86a29dd9693cb78c0aa42eaff30
Libva: (staging)79ddde6bab54618046f136471c020c08ff4fde50
Libva_intel_driver:(staging)6736a39fce442a8e5abb2a2e99adf56e3965d35f
Kernel: (drm-intel-nightly) 164a4cb4c1431a0689f85507868356fae24da638
Bug detailed description:
-----------------------------
It fails on Sandybridge with mesa master branch. It doesn't happen on mesa 10.0
branch.
Following Webglc cases also fail with same bisect commit:
conformance/glsl/functions/glsl-function-step-float.html
conformance/glsl/functions/glsl-function-step-gentype.html
Bisect shows: 4bd6e0d7c69b304be88996a6c2b96ce7d996e627 is the first bad commit.
commit 4bd6e0d7c69b304be88996a6c2b96ce7d996e627
Author: Matt Turner <<a href="mailto:mattst88@gmail.com">mattst88@gmail.com</a>>
AuthorDate: Sat Dec 21 11:28:05 2013 -0800
Commit: Matt Turner <<a href="mailto:mattst88@gmail.com">mattst88@gmail.com</a>>
CommitDate: Tue Jan 21 14:20:44 2014 -0800
glsl: Vectorize multiple scalar assignments
Reduces vertex shader instruction counts in DOTA2 by 6.42%, L4D2 by
4.61%, and CS:GO by 5.71%.
total instructions in shared programs: 1500153 -> 1498191 (-0.13%)
instructions in affected programs: 59919 -> 57957 (-3.27%)
Reviewed-by: Ian Romanick <<a href="mailto:ian.d.romanick@intel.com">ian.d.romanick@intel.com</a>>
Reproduce steps:
----------------------------
1. xinit
2. ./GTF -width=64 -height=64
-run=GL3Tests/transform_feedback/transform_feedback_max_separate.test</pre>
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