[Piglit] [Bug 87391] New: [i965 Bisected]Piglit shaders_glsl-deriv-varyings fails on Mesa 10.4

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87391

            Bug ID: 87391
           Summary: [i965 Bisected]Piglit shaders_glsl-deriv-varyings
                    fails on Mesa 10.4
           Product: piglit
           Version: unspecified
          Hardware: All
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: high
         Component: tests
          Assignee: piglit at lists.freedesktop.org
          Reporter: huax.lu at intel.com
        QA Contact: piglit at lists.freedesktop.org
                CC: agomez at igalia.com, idr at freedesktop.org,
                    mattst88 at gmail.com

System Environment:
--------------------------
Platform:   i965
Libdrm:       
(master)libdrm-2.4.58-19-gf99522e678dbbaffeca9462a8edcbe900574dc12
Mesa:        (10.4)bccfe7ae0f4e11a0219eb92f7070b1fc70bc6fd6
Xserver:    (server-1.16-branch)xorg-server-1.16.2.901
Xf86_video_intel:(master)2.99.916-177-g99537089346ed7a1bc6b02349fad93845e865bb9
Libva:        (master)8986ec692b19d8dd6bd2aa118b5dffbd05a8f909
Libva_intel_driver:(master)b5d6d9d425a6d539b27d22992bda05f79d1a0622
Kernel:   (drm-intel-fixes)b0616c5306b342ceca07044dbc4f917d95c4f825
Piglit: f18b947d7c03b81b989ed47551dc24bcc29cc0fc

Bug detailed description:
---------------------------
This case fails on Mesa 10.4 branch and works well on Mesa master branch.Bisect
shows it's a Piglit regression.

Bisect shows: b1ee0f3214028cd724028f697ac5ee7b6240de10 is the first bad commit.
commit b1ee0f3214028cd724028f697ac5ee7b6240de10
Author:     Andres Gomez <agomez at igalia.com>
AuthorDate: Fri Dec 12 17:13:55 2014 +0100
Commit:     Matt Turner <mattst88 at gmail.com>
CommitDate: Mon Dec 15 11:41:54 2014 -0800

    glsl-deriv-varyings: Added checks for derivatives on parameters with
negative or abs modifiers

    Exposes a bug in the i965 driver.

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=82991
    Reviewed-by: Matt Turner <mattst88 at gmail.com>


output:
libGL: screen 0 does not appear to be DRI3 capable
libGL: pci id for fd 4: 8086:0152, driver i965
libGL: OpenDriver: trying /opt/X11R7/lib/dri/tls/i965_dri.so
libGL: OpenDriver: trying /opt/X11R7/lib/dri/i965_dri.so
libGL: Error in /etc/drirc line 1, column 0: no element found.
libGL: Error in /root/.drirc line 1, column 0: no element found.
libGL: Error in /etc/drirc line 1, column 0: no element found.
libGL: Error in /root/.drirc line 1, column 0: no element found.
Probe color at (280,125)
  Expected: 0.800000 0.400000 0.000000
  Observed: 0.000000 0.000000 0.000000
PIGLIT: {"result": "fail" }


Reproduce steps:
-------------------------
1. xinit
2. bin/glsl-deriv-varyings -auto -fbo

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