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<base href="https://bugs.freedesktop.org/" />
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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 --- - vs-temp-array-mat3-index-col-rd test fails with SB"
href="https://bugs.freedesktop.org/show_bug.cgi?id=71944">71944</a>
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<th>Assignee</th>
<td>mesa-dev@lists.freedesktop.org
</td>
</tr>
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<th>Summary</th>
<td>vs-temp-array-mat3-index-col-rd test fails with SB
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>g02maran@gmail.com
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</tr>
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<th>Hardware</th>
<td>x86-64 (AMD64)
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</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Version</th>
<td>git
</td>
</tr>
<tr>
<th>Component</th>
<td>Drivers/Gallium/r600
</td>
</tr>
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<th>Product</th>
<td>Mesa
</td>
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<pre>Created <span class=""><a href="attachment.cgi?id=89688" name="attach_89688" title="Shader dump when test fails">attachment 89688</a> <a href="attachment.cgi?id=89688&action=edit" title="Shader dump when test fails">[details]</a></span>
Shader dump when test fails
I did a little investigation on why the piglit test:
vs-temp-array-mat3-index-col-rd fails with SB.
If I disable SB with R600_DEBUG=nosb the test passes.
I did a bisect and found this commit:
<a href="http://cgit.freedesktop.org/mesa/mesa/commit/?id=7ae9cc71f097af5ae1f83f77f75de2198849faca">http://cgit.freedesktop.org/mesa/mesa/commit/?id=7ae9cc71f097af5ae1f83f77f75de2198849faca</a>
If I revert that commit the test passes with SB, but I'm pretty sure that
commit only exposed a bug that weren't hit before.
I looked at the shader dumps and the only thing I found that looked a little
strange was this.
before: 7ae9cc71f097af5ae1f83f77f75de2198849faca
z: SETE T0.z, R[2+AR].y, KC0[2].y
w: SETE T1.w, R[2+AR].z, KC0[2].z
x: SETE T1.x, R[2+AR].x, KC0[2].x
after: 7ae9cc71f097af5ae1f83f77f75de2198849faca
w: SETE_DX10 T0.w, R[2+AR].z, KC0[2].z
z: SETE_DX10 T0.z, R[2+AR].y, KC0[2].y
x: SETE_DX10 T1.x, R[0+AR].x, KC0[2].x
Is R[0+AR].x correct in the last line or should it be R[2+AR].x?
Tested with mesa master: 751e8697f2099a0ceaba09e0d8775e4636f209b1</pre>
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