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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [llvmpipe] piglit arb_color_buffer_float-render GL_RGBA16F regression"
href="https://bugs.freedesktop.org/show_bug.cgi?id=72624">72624</a>
</td>
</tr>
<tr>
<th>Keywords</th>
<td>regression
</td>
</tr>
<tr>
<th>CC</th>
<td>jfonseca@vmware.com, sroland@vmware.com, zackr@vmware.com
</td>
</tr>
<tr>
<th>Assignee</th>
<td>mesa-dev@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[llvmpipe] piglit arb_color_buffer_float-render GL_RGBA16F regression
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>vlee@freedesktop.org
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>git
</td>
</tr>
<tr>
<th>Component</th>
<td>Other
</td>
</tr>
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<th>Product</th>
<td>Mesa
</td>
</tr></table>
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<pre>mesa: e84a1ab3c400f819408a7ebe01c2325cd59d94d3 (master)
$ ./bin/arb_color_buffer_float-render GL_RGBA16F -auto
Testing 16-bit floating-point FBO
Intrinsic has incorrect argument type!
void (i32*)* @llvm.x86.sse.stmxcsr
Intrinsic has incorrect argument type!
void (i32*)* @llvm.x86.sse.stmxcsr
Intrinsic has incorrect argument type!
void (i32*)* @llvm.x86.sse.ldmxcsr
Intrinsic has incorrect argument type!
void (i32*)* @llvm.x86.sse.ldmxcsr
Broken module found, verification continues.
155139059ba588da1161eaa692515cacdead9f4e is the first bad commit
commit 155139059ba588da1161eaa692515cacdead9f4e
Author: Zack Rusin <<a href="mailto:zackr@vmware.com">zackr@vmware.com</a>>
Date: Fri Dec 6 01:28:25 2013 -0500
llvmpipe: fix blending with half-float formats
The fact that we flush denorms to zero breaks our half-float
conversion and blending. This patches enables denorms for
blending. It's a little tricky due to the llvm bug that makes
it incorrectly reorder the mxcsr intrinsics:
<a href="http://llvm.org/bugs/show_bug.cgi?id=6393">http://llvm.org/bugs/show_bug.cgi?id=6393</a>
Signed-off-by: Zack Rusin <<a href="mailto:zackr@vmware.com">zackr@vmware.com</a>>
Reviewed-by: José Fonseca <<a href="mailto:jfonseca@vmware.com">jfonseca@vmware.com</a>>
Reviewed-by: Roland Scheidegger <<a href="mailto:sroland@vmware.com">sroland@vmware.com</a>>
Signed-off-by: Zack Rusin <<a href="mailto:zackr@vmware.com">zackr@vmware.com</a>></pre>
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