[Bug 64600] r600g pyrit OpenCL issue on HD6850

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=64600

Peter Wu <lekensteyn at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #21 from Peter Wu <lekensteyn at gmail.com> ---
Works now with the latest mesa and llvm. If the performance is still bad, you
are probably affected by a bad workgroup size. In that case, try Tom's
pyrit-perfs[1][2] patches on top of ac81b6f2be8779022e8641984b09118b57263128.

The second patch[2] is already upstreamed, but patch [1] does not apply on the
current master because of other changes in the area.

 [1]:
http://people.freedesktop.org/~tstellar/pyrit-perf/0001-XXX-clover-Calculate-the-optimal-work-group-size.patch
 [2]:
http://people.freedesktop.org/~tstellar/pyrit-perf/0001-radeon-llvm-Specify-the-DataLayout-when-running-opti.patch

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