1#R600 shader from NIR 2 3This code is an attempt to implement a NIR backend for r600. 4 5Supported hardware: Cayman, Evergreen and NI (tested on CAYMAN, CEDAR and BARTS) 6 7Thanks to soft fp64 the OpenGL version is now 4.5 also for EG. 8 9sb can bee enabled for nir, it still gives some improvements, e.g. with Xonotic 10The aim is still to get rid of it. 11 12 13## State 14 15TODO: 16 17piglits gpu passes mostly like with TGSI, there are some fixes but also a few regressions. 18 19piglit: 20 * spilling arrays is broken on Barts and CAYMAN (but it works on Cedar) 21 22## Needed optimizations: 23 24 - peepholes: 25 - compare + set predicate / kill 26 - use clause local registers 27 - reduce register usage 28 - don't rely on the backend to schedule addr load and Index load as well 29 - don't rely on the backend to merge some alu groups 30 31## There are still some hangs 32