[Mesa-dev] [Bug 82477] [softpipe] piglit fp-long-alu regression

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu Feb 12 13:36:50 PST 2015


Carl Worth <cworth at cworth.org> changed:

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

--- Comment #4 from Carl Worth <cworth at cworth.org> ---
commit 55a57834bf912916a5e07486b32f1778b35657f6
Author: Carl Worth <cworth at cworth.org>
Date:   Thu Feb 12 10:14:24 2015 -0800

    Revert use of Mesa IR optimizer for ARB_fragment_programs

    Commit f82f2fb3dc770902f1657ab1c22e6004faa3afab added use of the Mesa
    IR optimizer for both ARB_fragment_program and ARB_vertex_program, but
    only justified the vertex-program portions with measured performance

    Meanwhile, the optimizer was seen to generate hundreds of unused
    immediates without discarding them, causing failures.

    Discard the use of the optimizer for now to fix the regression. (In
    the future, we anticpate things moving from Mesa IR to NIR for better
    optimization anyway.)

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=82477

    Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>

    CC: "10.3 10.4 10.5" <mesa-stable at lists.freedesktop.org>

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