[Mesa-dev] [PATCH] nir: Copy-propagate vecN operations that are actually moves

[Matt Turner]

On Thu, Feb 19, 2015 at 11:01 PM, Connor Abbott <cwabbott0 at gmail.com> wrote:
> I agree with Ken that the regressions are small enough, and it seems
> they're mostly stuff we can prevent by being smarter when doing the
> sel peephole, so it seems like the cleanup that will probably help
> other passes is worth it.

So, usually we do that as a preparatory patch. Why aren't we doing that here?

NIR instruction counts is not the metric we care about.