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

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

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

[bugzilla-daemon]

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

--- Comment #1 from Marek Olšák  ---
Only VI can do FP32 denormals at full rate, which means only VI can enable them
and not lose performance.

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

[bugzilla-dae...@freedesktop.org]

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 at lists.freedesktop.org
  Reporter: samuel.pitoiset at gmail.com
QA Contact: dri-devel at 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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