<html>
<head>
<base href="https://bugs.freedesktop.org/">
</head>
<body>
<p>
<div>
<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [gallium-nine] missing geometry after commit ac: replace ac_build_kill with ac_build_kill_if_false"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105333#c18">Comment # 18</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [gallium-nine] missing geometry after commit ac: replace ac_build_kill with ac_build_kill_if_false"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105333">bug 105333</a>
from <span class="vcard"><a class="email" href="mailto:davyaxel0@gmail.com" title="Axel Davy <davyaxel0@gmail.com>"> <span class="fn">Axel Davy</span></a>
</span></b>
<pre>PixWin enables to use ProcessVertices which outputs the vs shader outputs.
I looked at the output which would give the IN[4].w
If found that for llvmpipe (used for ProcessVertices) the vs output is between
0 and 1.
However I tried with radeonsi, and... it displays a NaN for that output...
I guess one of the input is NaN and llvmpipe clamps it (the vs output is the
subtraction between two vs inputs).
If that output is really NaN, I guess it can explain the regression. A small
change (x < 0 vs 0 > x) will give different result with NaN.
I tried to change the order for the test in radeonsi's kil_emit, but the
generated isa doesn't change the test order between 0 and x.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the assignee for the bug.</li>
</ul>
</body>
</html>