<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <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#c13">Comment # 13</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 <a class="email" href="mailto:sroland@vmware.com" title="Roland Scheidegger <sroland@vmware.com>"> Roland Scheidegger</a> <pre>(In reply to Patrick Baggett from <a href="show_bug.cgi?id=27512#c11">comment #11</a>) > Created <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> <a href='page.cgi?id=splinter.html&bug=27512&attachment=120822'>[review]</a> [review] > 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. I don't see much point though in replacing the prefetch[w] instructions in the 3dnow functions however. Though I'd guess since this is x86_64 it should still work...</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>