<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#c9">Comment # 9</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 Michael Harder from <a href="show_bug.cgi?id=27512#c8">comment #8</a>) > From 'cat /proc/cpuinfo' > model name : Intel(R) Pentium(R) 4 CPU 3.00GHz Using any special build flags? As said I can't see how this code could work with intel cpus. There's other functions which should work (like _mesa_sse_transform_points4_general) albeit these might be working in 32bit builds only. Not my area of expertise... At a quick glance USE_X86_64_ASM actually might be defined by default, but this particular cpu instruction just doesn't look like it could run on intel cpus. Unless some cpus tolerate that instruction even if the manuals don't say so (would not be all that surprising even, seems the OP also had a P4, so maybe all later cpus support prefetch/prefetchw for some reason regardless...). If so the code should be fixed up (replacing prefetch/prefetchw with one of prefetcht0/t1/t2/nta, these should run on all x86_64 capable cpus). I don't really know that code, though...</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>