The specific pattern from the unit test was observed in ray tracing
trampoline shaders.
v2: Refactor the is_raw_move tests out to a utility function. Suggested
by Ken.
v3: Fix a regression caused by being too picky about source
modifiers. This was introduced somewhere between when I did initial
shader-db runs an v2.
v4: Fix typo in comment. Noticed by Caio.
shader-db:
All Intel platforms had similar results. (Meteor Lake shown)
total instructions in shared programs: 19734086 -> 19733997 (<.01%)
instructions in affected programs: 135388 -> 135299 (-0.07%)
helped: 76 / HURT: 2
total cycles in shared programs: 916290451 -> 916264968 (<.01%)
cycles in affected programs: 41046002 -> 41020519 (-0.06%)
helped: 32 / HURT: 29
fossil-db:
Meteor Lake, DG2, and Skylake had similar results. (Meteor Lake shown)
Totals:
Instrs: 151531355 -> 151513669 (-0.01%); split: -0.01%, +0.00%
Cycle count: 17209372399 -> 17208178205 (-0.01%); split: -0.01%, +0.00%
Max live registers: 32016490 -> 32016493 (+0.00%)
Totals from 17361 (2.75% of 630198) affected shaders:
Instrs: 2642048 -> 2624362 (-0.67%); split: -0.67%, +0.00%
Cycle count: 79803066 -> 78608872 (-1.50%); split: -1.75%, +0.25%
Max live registers: 421668 -> 421671 (+0.00%)
Tiger Lake and Ice Lake had similar results. (Tiger Lake shown)
Totals:
Instrs: 149995644 -> 149977326 (-0.01%); split: -0.01%, +0.00%
Cycle count: 15567293770 -> 15566524840 (-0.00%); split: -0.02%, +0.01%
Spill count: 61241 -> 61238 (-0.00%)
Fill count: 107304 -> 107301 (-0.00%)
Max live registers: 31993109 -> 31993112 (+0.00%)
Totals from 17813 (2.83% of 629912) affected shaders:
Instrs: 3738236 -> 3719918 (-0.49%); split: -0.49%, +0.00%
Cycle count: 4251157049 -> 4250388119 (-0.02%); split: -0.06%, +0.04%
Spill count: 28268 -> 28265 (-0.01%)
Fill count: 50377 -> 50374 (-0.01%)
Max live registers: 470648 -> 470651 (+0.00%)
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30251>
There are already NIR algebraic optimizations (see also ac6646129f
("nir: Move fsat outside of fmin/fmax if second arg is 0 to 1.") that
will try to remove the saturate from things like
fmax(0.5, fsat(x))
This basically reverts 40aeb558ce ("i965/fs: Allow propagation of
instructions with saturate flag to sel"). That commit message had no
shader-db information, so it's unclear whether this actually helped
anything ever.
No shader-db changes on any Intel platform.
One shader in Far Cry New Dawn was affected.
Cycles in all programs: 10933090738 -> 10933090736 (-0.0%)
Cycles helped: 1
Reviewed-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22169>
It's not used by anything anymore now that so much lowering has been
moved into NIR. Sadly, we still need on in brw_compile_gs() for
geometry shaders on Sandy Bridge. Short of a lot of pointless work,
that one's probably not going away.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Mostly a dummy git mv with a couple of noticable parts:
- With the earlier header cleanups, nothing in src/intel depends
files from src/mesa/drivers/dri/i965/
- Both Autoconf and Android builds are addressed. Thanks to Mauro and
Tapani for the fixups in the latter
- brw_util.[ch] is not really compiler specific, so it's moved to i965.
v2:
- move brw_eu_defines.h instead of brw_defines.h
- remove no-longer applicable includes
- add missing vulkan/ prefix in the Android build (thanks Tapani)
v3:
- don't list brw_defines.h in src/intel/Makefile.sources (Jason)
- rebase on top of the oa patches
[Emil Velikov: commit message, various small fixes througout]
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Ian Romanick