nir: Make nir_dead_cf faster
This MR adds a couple of patches which should substantially improve the speed of nir_dead_cf by stopping relying on liveness analysis. I've marked it WIP because I have yet to give it any real testing.
This MR adds a couple of patches which should substantially improve the speed of nir_dead_cf by stopping relying on liveness analysis. I've marked it WIP because I have yet to give it any real testing.