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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - flightgear crashes on r600 (rs880) with llvm backend"
href="https://bugs.freedesktop.org/show_bug.cgi?id=72680#c4">Comment # 4</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - flightgear crashes on r600 (rs880) with llvm backend"
href="https://bugs.freedesktop.org/show_bug.cgi?id=72680">bug 72680</a>
from <span class="vcard"><a class="email" href="mailto:ptpzz@yandex.ru" title="Vadim Girlin <ptpzz@yandex.ru>"> <span class="fn">Vadim Girlin</span></a>
</span></b>
<pre>That assert in sb_bc_parser means that it can't find corresponding instruction
in the previous group for PV/PS. E.g.:
0648 801fa00b 61007210 78 t: LSHL_INT R8.w, R11.x,
[0x0000001f 0].x
0650 0000001f
0652 801facfe 61007010 79 t: ASHR_INT R8.w, PV.w,
[0x0000001f 0].x
0654 0000001f
Group 79 uses PV.w, but group 78 has nothing in W slot. LLVM backend produces
incorrect code in this case.</pre>
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