[Mesa-dev] [Bug 91016] Piglit regression: shaders/glsl-floating-constant-120

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91016

            Bug ID: 91016
           Summary: Piglit regression: shaders/glsl-floating-constant-120
           Product: Mesa
           Version: 10.6
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Mesa core
          Assignee: mesa-dev at lists.freedesktop.org
          Reporter: brian.wilson at intel.com
        QA Contact: mesa-dev at lists.freedesktop.org

Piglit test: shaders/glsl-floating-constant-120

We are seeing this Piglit regression on pineview (chromebook, the only chrome
platform in our stable still using X and tested with Piglit)

The version of Mesa that ChromeOS is currently using passes this test in
piglit. It is based on the following commit plus an additional 34 patches:
    1291788 glsl: Generate unique names for each const array lowered to
uniforms [Nov 2014-ish]

It fails in the following Mesa commit:
    c2a0600 i965: Don't set NirOptions for stages that will use the vec4
backend [May 2015-ish]

It also fails in this recent Mesa commit:
    1a6e4f46ed117b393e26aff326e5b05d4aea7fb0 (gallium: remove explicit values
from PIPE_CAP_ enums) [~June 10, 2015]

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