[Mesa-dev] [PATCH 08/53] intel/fs: FS_OPCODE_REP_FB_WRITE has side effects

[Jason Ekstrand]

On Fri, May 25, 2018 at 11:29 AM, Matt Turner <mattst88 at gmail.com> wrote:

> On Thu, May 24, 2018 at 2:55 PM, Jason Ekstrand <jason at jlekstrand.net>
> wrote:
> > It doesn't matter since we don't ever run replicated write shaders
> > through the optimizer but it's good to be complete.
>
> Aside: Is there anything that would prevent us from detecting that all
> fragments are uniform and using this message?
>

We've considered that in the past.  Unfortunately, it also has other
restrictions such as not allowing color masking so we'd have to put more
stuff in the shader key.  It could be done though.

--Jason
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