[Mesa-dev] i965: more dead code elimination

[Matt Turner]

On Wed, Apr 10, 2013 at 11:54 AM, Eric Anholt <eric at anholt.net> wrote:
> Motivated by some troubles in register allocation on Valve's shaders, I
> found a cheap (runtime and development time) way to cut some dead code.
> This looked like failure due to losing 16-wide programs, until I updated
> more apps in shader-db to use shader_tests (which provide more accurate
> simulation, since your FS attributes are no longer demoted to undefined
> temporary values).
>
> shader-db results:
> total instructions in shared programs: 1735753 -> 1731698 (-0.23%)
> instructions in affected programs:     492620 -> 488565 (-0.82%)
>
> There are also a few cleanup patches attached that have been kicking
> around several optimization branches I have.
>
> This series is on the local-dce branch of my tree.

Assuming the comment in #3 is addressed and my understanding of #4 is
correct, the series is

Reviewed-by: Matt Turner <mattst88 at gmail.com>