[Bug 92696] [g965 CTS] 8 regressions in es2-cts.gtf.gl suite

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Oct 27 12:26:25 PDT 2015


https://bugs.freedesktop.org/show_bug.cgi?id=92696

            Bug ID: 92696
           Summary: [g965 CTS] 8 regressions in es2-cts.gtf.gl suite
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          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

commit 2458ea95c5676807a064f24ec720f12506975402 regressed 8 GL conformance
tests on g965:

Author:     Jason Ekstrand <jason.ekstrand at intel.com>
AuthorDate: Wed Sep 9 14:40:06 2015 -0700
Commit:     Jason Ekstrand <jason.ekstrand at intel.com>
CommitDate: Tue Sep 15 12:38:07 2015 -0700

    nir/lower_vec_to_movs: Coalesce movs on-the-fly when possible

    The old pass blindly inserted a bunch of moves into the shader with no
    concern for whether or not it was really needed.  This adds code to try and
    coalesce into the destination of the instruction providing the value.

    Shader-db results for vec4 shaders on Haswell:

       total instructions in shared programs: 1754420 -> 1747753 (-0.38%)
       instructions in affected programs:     231230 -> 224563 (-2.88%)
       helped:                                1017
       HURT:                                  2

    This approach is heavily based on a different patch by Eduardo Lima Mitev
    <elima at igalia.com>.  Eduardo's patch did this in a separate pass as opposed
    to integrating it into nir_lower_vec_to_movs.

    Reviewed-by: Eduardo Lima Mitev <elima at igalia.com>

Intel never submitted conformance results for g965, so I'm not sure if this bug
is a blocker.

Regressions:
es2-cts.gtf.gl.cross.cross_vec3_vert_xvaryyconst
es2-cts.gtf.gl.exp.exp_float_vert_xvaryneg
es2-cts.gtf.gl.exp.exp_vec2_vert_xvaryneg
es2-cts.gtf.gl.exp2.exp2_float_vert_xvaryneg
es2-cts.gtf.gl.exp2.exp2_vec2_vert_xvaryneg
es2-cts.gtf.gl.faceforward.faceforward_vec3_vert_nvaryiconst
es2-cts.gtf.gl.reflect.reflect_vec3_vert_ivarynconst
es2-cts.gtf.gl.refract.refract_vec3_vert_ivarynconst


Sample Standard Output:

/tmp/build_root/m64/bin/cts/glcts
--deqp-case=ES2-CTS.gtf.GL.exp.exp_float_vert_xvaryneg
dEQP Core GL-CTS-2.0 (0x0052484b) starting..
  target implementation = 'intel-gbm'

Test case 'ES2-CTS.gtf.GL.exp.exp_float_vert_xvaryneg'..
#+ GTF/GL/exp/exp_float_vert_xvaryneg.shader1.ppm and
GTF/GL/exp/exp_float_vert_xvaryneg.shader2.ppm are different
  Fail (Fail)

DONE!

Test run totals:
  Passed:        0/1 (0.00%)
  Failed:        1/1 (100.00%)
  Not supported: 0/1 (0.00%)
  Warnings:      0/1 (0.00%)

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-3d-bugs/attachments/20151027/81f04080/attachment.html>


More information about the intel-3d-bugs mailing list