Ian Romanick 535caaf3e0 nir: Optimize uniform iadd, fadd, and ixor reduction operations ... This adds optimizations for iadd, fadd, and ixor with reduce, inclusive scan, and exclusive scan. NOTE: The fadd and ixor optimizations had no shader-db or fossil-db changes on any Intel platform. NOTE 2: This change "fixes" arb_compute_variable_group_size-local-size and base-local-size.shader_test on DG2 and MTL. This is just changing the code path taken to not use whatever path was not working properly before. This is a subset of the things optimized by ACO. See also https://gitlab.freedesktop.org/mesa/mesa/-/issues/3731#note_682802. The min, max, iand, and ior exclusive_scan optimizations are not implemented. Broadwell on shader-db is not happy. I have not investigated. v2: Silence some warnings about discarding const. v3: Rename mbcnt to count_active_invocations. Add a big comment explaining the differences between the two paths. Suggested by Rhys. shader-db: All Gfx9 and newer platforms had similar results. (Ice Lake shown) total instructions in shared programs: 20300384 -> 20299545 (<.01%) instructions in affected programs: 19167 -> 18328 (-4.38%) helped: 35 / HURT: 0 total cycles in shared programs: 842809750 -> 842766381 (<.01%) cycles in affected programs: 2160249 -> 2116880 (-2.01%) helped: 33 / HURT: 2 total spills in shared programs: 4632 -> 4626 (-0.13%) spills in affected programs: 206 -> 200 (-2.91%) helped: 3 / HURT: 0 total fills in shared programs: 5594 -> 5581 (-0.23%) fills in affected programs: 664 -> 651 (-1.96%) helped: 3 / HURT: 1 fossil-db results: All Intel platforms had similar results. (Ice Lake shown) Totals: Instrs: 165551893 -> 165513303 (-0.02%) Cycles: 15132539132 -> 15125314947 (-0.05%); split: -0.05%, +0.00% Spill count: 45258 -> 45204 (-0.12%) Fill count: 74286 -> 74157 (-0.17%) Scratch Memory Size: 2467840 -> 2451456 (-0.66%) Totals from 712 (0.11% of 656120) affected shaders: Instrs: 598931 -> 560341 (-6.44%) Cycles: 184650167 -> 177425982 (-3.91%); split: -3.95%, +0.04% Spill count: 983 -> 929 (-5.49%) Fill count: 2274 -> 2145 (-5.67%) Scratch Memory Size: 52224 -> 35840 (-31.37%) Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27044>		2024-02-27 09:44:11 -08:00
..
clc	clc: include opencl-c.h for extensions needing it	2024-02-21 20:53:36 +00:00
glsl	glsl: move some lowering to the compiler	2024-02-22 05:26:16 +00:00
isaspec	isaspec: encode.py: Include util/log.h	2024-02-23 20:29:57 +00:00
nir	nir: Optimize uniform iadd, fadd, and ixor reduction operations	2024-02-27 09:44:11 -08:00
spirv	spirv: only consider IO variables when adjusting patch locations for TES	2024-02-21 10:36:07 +00:00
builtin_types.py	compiler/types: Use Python to generate code for builtin types	2023-09-16 15:17:01 +00:00
builtin_types_c.py	util,vulkan,mesa,compiler: Generate source files with utf8 encoding from mako template	2023-12-07 12:41:07 +00:00
builtin_types_h.py	util,vulkan,mesa,compiler: Generate source files with utf8 encoding from mako template	2023-12-07 12:41:07 +00:00
glsl_types.c	compiler/types: Add a contains_32bit helper	2024-02-12 13:23:14 +00:00
glsl_types.h	compiler/types: Add a contains_32bit helper	2024-02-12 13:23:14 +00:00
meson.build	meson: do not pull in clc for clover	2024-02-21 20:53:36 +00:00
shader_enums.c	radv: Remove ray_launch_size_addr_amd system value.	2024-02-17 11:08:16 +00:00
shader_enums.h	radv: Remove ray_launch_size_addr_amd system value.	2024-02-17 11:08:16 +00:00
shader_info.h	compiler: add a vs.tes_agx bit	2024-02-14 21:02:28 +00:00