[Bug 93333] [regression, HSW, IVB] spec.arb_compute_shader.execution.atomic-counter broken on 32 bit platforms

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93333

            Bug ID: 93333
           Summary: [regression, HSW, IVB]
                    spec.arb_compute_shader.execution.atomic-counter
                    broken on 32 bit platforms
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: blocker
          Priority: medium
         Component: Drivers/DRI/i965
          Assignee: idr at freedesktop.org
          Reporter: mark.a.janes at intel.com
        QA Contact: intel-3d-bugs at lists.freedesktop.org

d04612b60d98ff785646affaffc3d7243deecb74 regressed this test on 32 bit hsw/ivb:

Author:     Jordan Justen <jordan.l.justen at intel.com>
AuthorDate: Wed Sep 2 15:47:33 2015 -0700
Commit:     Jordan Justen <jordan.l.justen at intel.com>
CommitDate: Wed Dec 9 23:50:38 2015 -0800

    i965: Enable ARB_compute_shader extension on supported hardware

    Enable ARB_compute_shader on gen7+, on hardware that supports the
    OpenGL 4.3 requirements of a local group size of 1024.

    With SIMD16 support, this is limited to Ivy Bridge and Haswell.

    Broadwell will work with a local group size up to 896 on SIMD16
    meaning programs that use this size or lower should run when setting
    MESA_EXTENSION_OVERRIDE=GL_ARB_compute_shader.

    Signed-off-by: Jordan Justen <jordan.l.justen at intel.com>
    Reviewed-by: Iago Toral Quiroga <itoral at igalia.com>
    Reviewed-by: Kristian Høgsberg <krh at bitplanet.net>


Test output:
/tmp/build_root/m32/lib/piglit/bin/shader_runner
/tmp/build_root/m32/lib/piglit/tests/spec/arb_compute_shader/execution/atomic-counter.shader_test
-auto
piglit: debug: Requested an OpenGL 3.2 Core Context, and received a matching
3.3 context

Atomic counter 1 test failed: Reference == Observed
  Reference: 2147483647
  Observed:  4294966784

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