Bug 50999 - [r300g, bisected] piglit glsl-fs-discard-04 fails
Summary: [r300g, bisected] piglit glsl-fs-discard-04 fails
Alias: None
Product: Mesa
Classification: Unclassified
Component: Drivers/Gallium/r300 (show other bugs)
Version: git
Hardware: Other All
: medium normal
Assignee: Default DRI bug account
QA Contact:
Keywords: regression
Depends on:
Reported: 2012-06-12 02:31 UTC by Pavel Ondračka
Modified: 2019-09-18 18:51 UTC (History)
2 users (show)

See Also:
i915 platform:
i915 features:

RADEON_DEBUG=fp log (21.98 KB, text/plain)
2012-06-12 02:31 UTC, Pavel Ondračka

Description Pavel Ondračka 2012-06-12 02:31:47 UTC
Created attachment 62924 [details]

./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.

Kernel: 3.4.0-1.fc17.i686
Comment 1 GitLab Migration User 2019-09-18 18:51:05 UTC
-- GitLab Migration Automatic Message --

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