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

[bugzilla-daemon at freedesktop.org]

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

--- Comment #8 from Lionel Landwerlin <lionel.g.landwerlin at linux.intel.com> ---
(In reply to Lionel Landwerlin from comment #7)
> (In reply to Eero Tamminen from comment #5)
> > (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.
> 
> Totally, about to do that.

Branch here :
https://gitlab.freedesktop.org/llandwerlin/shader-db/commits/master 

Need to fix the stub later.

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