[Bug 99343] dEQP-GLES31.functional.shaders.builtin_functions.precision.{min, max}.highp_compute.scalar failures - bugzilla-daemon

From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 99343] dEQP-GLES31.functional.shaders.builtin_functions.precision.{min, max}.highp_compute.scalar failures
Date: Tue, 10 Jan 2017 12:50:30 +0000	[thread overview]
Message-ID: <bug-99343-502@http.bugs.freedesktop.org/> (raw)

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https://bugs.freedesktop.org/show_bug.cgi?id=99343

            Bug ID: 99343
           Summary: dEQP-GLES31.functional.shaders.builtin_functions.preci
                    sion.{min,max}.highp_compute.scalar failures
           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: samuel.pitoiset@gmail.com
        QA Contact: dri-devel@lists.freedesktop.org

Hi,

I have noticed that the following dEQP GLES31 tests fail with latest mesa/llvm:

dEQP-GLES31.functional.shaders.builtin_functions.precision.min.highp_compute.scalar
dEQP-GLES31.functional.shaders.builtin_functions.precision.max.highp_compute.scalar

The same tests with lowp instead of highp work fine. Note that it's unrelated
to compute because they also fail with vertex shaders.

After glancing at the code, it seems like enabling denorms for 32-bit floats
fix them. But it's currently only enabled for 64-bit and 16-bit floats for some
reasons.

Marek, Nicolai, any thoughts about that?

I didn't try if these tests pass with Catalyst though, but they do at least on
NVIDIA hw.

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