Bug 110784 - [regression][bisected] Reverting 'expose 0 shader binary formats for compat profiles for Qt' causes get_program_binary failures on Iris
Summary: [regression][bisected] Reverting 'expose 0 shader binary formats for compat p...
Alias: None
Product: Mesa
Classification: Unclassified
Component: Drivers/Gallium/Iris (show other bugs)
Version: git
Hardware: Other All
: medium normal
Assignee: Timothy Arceri
QA Contact: Intel 3D Bugs Mailing List
Keywords: bisected, regression
Depends on:
Reported: 2019-05-28 15:10 UTC by Clayton Craft
Modified: 2019-06-04 01:45 UTC (History)
0 users

See Also:
i915 platform:
i915 features:


Description Clayton Craft 2019-05-28 15:10:52 UTC
The following tests are failing on Iris when 55376cb31e2 was reverted:


/tmp/build_root/m64/lib/piglit/bin/shader_runner /tmp/build_root/m64/lib/piglit/tests/spec/arb_get_program_binary/execution/uniform-after-restore.shader_test -auto -fbo
Probe color at (0,0)
  Expected: 0 255 0 255
  Observed: 255 0 255 0
Test failure on line 35

/tmp/build_root/m64/lib/piglit/bin/arb_get_program_binary-reset-uniform -auto -fbo
uniform color didn't match expected color

Bisected to this commit:

commit 11e16ca7ce0a702088b35ccccea85e243d801ef9
Author: Timothy Arceri <tarceri@itsqueeze.com>
Date:   Mon May 27 20:07:41 2019 +1000

    Revert "st/mesa: expose 0 shader binary formats for compat profiles for Qt"
Comment 1 Timothy Arceri 2019-05-28 23:31:26 UTC
Just FYI this isn't a regression, the test was being skipped previously so it seems this was likely already broken we just weren't testing it where it was enabled (in core profiles).

Anyway I'll look into it.
Comment 2 Timothy Arceri 2019-05-29 03:15:08 UTC
This makes the test pass on radeonsi:

Comment 3 Timothy Arceri 2019-06-04 01:45:59 UTC
Thanks for the bug report. This should now be fixed by:

commit fea36a8f43ea010ce0581a63b4b5fa1213a35982
Author: Timothy Arceri <tarceri@itsqueeze.com>
Date:   Wed May 29 13:13:44 2019 +1000

    st/glsl: make sure to propagate initialisers to driver storage
    This essentially reverts 20234cfe3a20.
    Fixes piglit test:
    Fixes: 20234cfe3a20 "st/mesa: don't propagate uniforms when restoring from cache"
    Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110784

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