[Mesa-dev] [PATCH 1/2] radeonsi: emit 1/sqrt for RSQ

[Michel Dänzer]

On 22.06.2016 22:13, Marek Olšák wrote:
> From: Marek Olšák <marek.olsak at amd.com>
> 
> We don't need the clamped version and we don't have to use any intrinsic.
> 
> Stats on Tonga:
> 
> 15382 shaders in 9128 tests
> Totals:
> SGPRS: 1230560 -> 1230560 (0.00 %)
> VGPRS: 469577 -> 462504 (-1.51 %)
> Code Size: 22089908 -> 21730052 (-1.63 %) bytes
> LDS: 598 -> 598 (0.00 %) blocks
> Scratch: 283648 -> 281600 (-0.72 %) bytes per wave
> Max Waves: 125664 -> 126969 (1.04 %)
> Wait states: 0 -> 0 (0.00 %)
> 
> Totals from affected shaders:
> SGPRS: 547280 -> 547280 (0.00 %)
> VGPRS: 269132 -> 262059 (-2.63 %)
> Code Size: 15709604 -> 15349748 (-2.29 %) bytes
> LDS: 198 -> 198 (0.00 %) blocks
> Scratch: 74752 -> 72704 (-2.74 %) bytes per wave
> Max Waves: 47840 -> 49145 (2.73 %)
> Wait states: 0 -> 0 (0.00 %)

Nice. This series is

Reviewed-by: Michel Dänzer <michel.daenzer at amd.com>


-- 
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer