[Bug 70322] [bisected] glsl: uniform vars turns undefined in mesa 9.1.4; mesa 9.0 OK

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=70322

Ian Romanick <idr at freedesktop.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         QA Contact|                            |intel-3d-bugs at lists.freedes
                   |                            |ktop.org
                 CC|                            |eric at anholt.net,
                   |                            |kenneth at whitecape.org
            Summary|glsl: uniform vars turns    |[bisected] glsl: uniform
                   |undefined in mesa 9.1.4;    |vars turns undefined in
                   |mesa 9.0 OK                 |mesa 9.1.4; mesa 9.0 OK
          Component|glsl-compiler               |Drivers/DRI/i965

--- Comment #7 from Ian Romanick <idr at freedesktop.org> ---
Bisected to:

commit c9e48e5b083b6cf97ecdb2d17c874ea631203b06
Author: Eric Anholt <eric at anholt.net>
Date:   Wed Aug 1 19:35:18 2012 -0700

    i965: Generalize VS compute-to-MRF for compute-to-another-GRF, too.

    No statistically significant performance difference on glbenchmark 2.7
    (n=60).  It reduces cycles spent in the vertex shader by 3.3% +/- 0.8%
    (n=5), but that's only about .3% of all cycles spent according to the
    fixed shader_time.

    Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

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