[Mesa-dev] [PATCH 0/9] Skip automatic execsize for instructions with a width of 4

[Pohjolainen, Topi]

On Mon, Mar 07, 2016 at 10:48:49AM +0100, Samuel Iglesias Gons?lvez wrote:
> Hello,
> 
> There is only one patch from this series that has been reviewed (patch
> 1).
> 
> Our plans is to start sending patches for adding fp64 support to i965
> driver in the coming weeks but they depend on these patches.
> 
> Can someone take a look at them? ;)
> 
> Sam
> 
> 
> On Thu, 2015-12-17 at 14:44 +0100, Samuel Iglesias Gonsálvez wrote:
> > Hello,
> > 
> > This patch series is a updated version of the one Iago sent last
> > week [0] that includes patches for gen6 too, as suggested by Jason.
> > 
> > We checked the gen9 code paths that work with a horizontal width of 4
> > and we think there won't be any regression on gen9... but we don't
> > have any gen9 machine to run piglit with these patches. Can someone
> > check it?

I rebased it and ran it through the test system, gen9 seems to be fine, I
only got one regression, and that was on old g965:

/tmp/build_root/m64/lib/piglit/bin/ext_framebuffer_multisample-accuracy all_samples srgb depthstencil -auto -fbo
Pixels that should be unlit
  count = 236444
  RMS error = 0.025355
Pixels that should be totally lit
  count = 13308
  Perfect output
The error threshold for unlit and totally lit pixels test is 0.016650
Pixels that should be partially lit
  count = 12392
  RMS error = 0.273876
The error threshold for partially lit pixels is 0.333000
Samples = 0, Result = fail


But I'm not sure if this is caused by your patches.