[Bug 99309] [radeonsi]glsl: Override the # of varying slots for ClipDistance and TessLevel*. broke chromium browser

[Bug 99309] [radeonsi]glsl: Override the # of varying slots for ClipDistance and TessLevel*. broke chromium browser

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=99309

            Bug ID: 99309
           Summary: [radeonsi]glsl: Override the # of varying slots for
                    ClipDistance and TessLevel*. broke chromium browser
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: arek.rusi@gmail.com
        QA Contact: dri-devel@lists.freedesktop.org

Hi, after upgrade mesa-git chromium starts looking like garbage.
I've tested this on polaris and i965(haswell) and only radeon is infected
kernel - 4.9 or 4.10-drm-next-wip
mesa - from git
llvm - r291295
ddx - amdgpu-git

bisecting:

8b5749f65ac434961308ccb579fb8a816e4f29d5 is the first bad commit
commit 8b5749f65ac434961308ccb579fb8a816e4f29d5
Author: Kenneth Graunke <kenneth@whitecape.org>
Date:   Sun Nov 15 04:37:50 2015 -0800

    glsl: Override the # of varying slots for ClipDistance and TessLevel*.

    Right now, this shouldn't have any effect, as all drivers use
    LowerClipDist and LowerTessFactors to turn the float[] arrays into
    vectors.

    However, it should help make it possible for drivers to avoid that
    lowering.
    me is the only issue for now
    Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
    Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
    Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>

after reverting, browser works corectly

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[Bug 99309] [radeonsi]glsl: Override the # of varying slots for ClipDistance and TessLevel*. broke chromium browser

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https://bugs.freedesktop.org/show_bug.cgi?id=99309

--- Comment #1 from Arek Ruśniak <arek.rusi@gmail.com> ---
Created attachment 128805
  --> https://bugs.freedesktop.org/attachment.cgi?id=128805&action=edit
chomium look

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[Bug 99309] [radeonsi]glsl: Override the # of varying slots for ClipDistance and TessLevel*. broke chromium browser

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=99309

--- Comment #2 from Edmondo Tommasina <edmondo.tommasina@gmail.com> ---
Same here. After updating to mesa-git Chromium with gpu acceleration shows only
garbage.

OpenGL renderer string: Gallium 0.4 on AMD POLARIS10 (DRM 3.8.0 / 4.9.0-gentoo,
LLVM 3.9.0)

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[Bug 99309] [radeonsi]glsl: Override the # of varying slots for ClipDistance and TessLevel*. broke chromium browser

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https://bugs.freedesktop.org/show_bug.cgi?id=99309

--- Comment #3 from Arek Ruśniak <arek.rusi@gmail.com> ---
ok, after commit "Revert recent GLSL slot counting fiasco" this raport should
disappear

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[Bug 99309] [radeonsi]glsl: Override the # of varying slots for ClipDistance and TessLevel*. broke chromium browser

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https://bugs.freedesktop.org/show_bug.cgi?id=99309

Arek Ruśniak <arek.rusi@gmail.com> changed:

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

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