[Bug 50999] New: [r300g, bisected] piglit glsl-fs-discard-04 fails

[Bug 50999] New: [r300g, bisected] piglit glsl-fs-discard-04 fails

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=50999

             Bug #: 50999
           Summary: [r300g, bisected] piglit glsl-fs-discard-04 fails
    Classification: Unclassified
           Product: Mesa
           Version: git
          Platform: Other
        OS/Version: All
            Status: NEW
          Keywords: regression
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r300
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: pavel.ondracka@email.cz
                CC: eric@anholt.net, tstellar@gmail.com


Created attachment 62924
  --> https://bugs.freedesktop.org/attachment.cgi?id=62924
RADEON_DEBUG=fp log

./bin/shader_runner tests/shaders/glsl-fs-discard-04.shader_test -auto -fbo
Probe at (0,0)
  Expected: 0.000000 1.000000 0.000000 0.000000
  Observed: 1.000000 0.000000 0.000000 0.000000
PIGLIT: {'result': 'fail' }

Regression test shows:
e21b9f1f19d2345026a7fbe095a776d0b64557ec is the first bad commit
commit e21b9f1f19d2345026a7fbe095a776d0b64557ec
Author: Eric Anholt <eric@anholt.net>
Date:   Fri May 4 13:37:08 2012 -0700

    glsl: Remove the opt_discard_simplification pass.

    This conflicts with the GLSL 1.30+ rules for derivatives after a
    discard has occurred.

    Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

llvmpipe works fine, so this may be another uncovered r300 compiler issue.

GPU:RV530
Kernel: 3.4.0-1.fc17.i686

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[Bug 50999] [r300g, bisected] piglit glsl-fs-discard-04 fails

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=50999

GitLab Migration User <gitlab-migration@fdo.invalid> changed:

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

--- Comment #1 from GitLab Migration User <gitlab-migration@fdo.invalid> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/mesa/mesa/issues/343.

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