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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - Illegal instruction _mesa_x86_64_transform_points4_general"
href="https://bugs.freedesktop.org/show_bug.cgi?id=27512#c11">Comment # 11</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - Illegal instruction _mesa_x86_64_transform_points4_general"
href="https://bugs.freedesktop.org/show_bug.cgi?id=27512">bug 27512</a>
from <span class="vcard"><a class="email" href="mailto:baggett.patrick@gmail.com" title="Patrick Baggett <baggett.patrick@gmail.com>"> <span class="fn">Patrick Baggett</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=120822" name="attach_120822" title="Use prefetcht1 instead of prefetch[w]">attachment 120822</a> <a href="attachment.cgi?id=120822&action=edit" title="Use prefetcht1 instead of prefetch[w]">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=27512&attachment=120822'>[review]</a>
Use prefetcht1 instead of prefetch[w]
This should fix the SIGILL when running this code. It replaces 3DNow!
prefetch[w] instructions with SSE prefetcht1. I'm still not convinced that the
prefetch logic actually has any beneficial performance characteristics.</pre>
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