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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [BDW]Piglit some spec_glsl-1.50_execution_built-in-functions* cases fail"
href="https://bugs.freedesktop.org/show_bug.cgi?id=81157#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [BDW]Piglit some spec_glsl-1.50_execution_built-in-functions* cases fail"
href="https://bugs.freedesktop.org/show_bug.cgi?id=81157">bug 81157</a>
from <span class="vcard"><a class="email" href="mailto:mattst88@gmail.com" title="Matt Turner <mattst88@gmail.com>"> <span class="fn">Matt Turner</span></a>
</span></b>
<pre>I don't know what the absolute value source modifier does on logic
instructions, but it doesn't seem to give the absolute value of a negative
argument. It doesn't appear to touch positive arguments though.
Not sure how I can investigate further, without being able to create an aub
file.
I suspect we should just disable copy propagation of (abs) arguments into
logical instructions on Broadwell.</pre>
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