[Bug 43332] corrupted output in mesa-demo/fp-tri using r600g on evergreen

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=43332

--- Comment #2 from Stefano Teso <stefano.teso at gmail.com> 2011-12-15 09:37:46 PST ---
> The bug is also present in the libGL 7.11.2 shipped by debian, so I don't think
> it's a regression or a bug in my config.

It looks like that inst->Dst[0].Register.WriteMask == 3 in tgsi_scs (), so the
ZW components of the dest register are never written. Perhaps this could
explain the artifact. Not that I'm a GL expert or anything ;-)

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