[Bug 109216] 4-27% performance drop in Vulkan benchmarks

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109216

--- Comment #5 from Eero Tamminen <eero.t.tamminen at intel.com> ---
(In reply to Lionel Landwerlin from comment #4)
> commit 8fb8ebfbb05d3323481c8ba6d320b3a3580bad99
> Author: Ian Romanick <ian.d.romanick at intel.com>
> Date:   Tue May 22 18:56:41 2018 -0700
> 
>     intel/compiler: More peephole select
>     
>     Shader-db results:
>     
>     The one shader hurt for instructions is a compute shader that had both
>     spills and fills hurt.

I think shaders in Sacha Willems' Vulkan demos would also need to be added to
shader-db.  According to INTEL_DEBUG output, Deferred Multisampling demo
doesn't have any compute shaders or spills/fills, and it regressed most.

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