Rhys Perry
21422b1ff2
nir/opt_uniform_atomics: remove useless returns
...
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7117 >
2020-10-14 09:53:34 +00:00
Rhys Perry
a7114f3f46
nir/opt_uniform_atomics: don't optimize atomics twice
...
Applications sometimes already do this optimization themselves.
fossil-db (Navi):
Totals from 51 (0.04% of 135946) affected shaders:
CodeSize: 507484 -> 501860 (-1.11%)
Instrs: 99635 -> 98471 (-1.17%)
Cycles: 2421944 -> 2414780 (-0.30%)
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6558 >
2020-10-13 12:47:21 +00:00
Rhys Perry
bc43650522
nir/opt_uniform_atomics: optimize image atomics
...
fossil-db (Navi):
Totals from 65 (0.05% of 135946) affected shaders:
SGPRs: 3792 -> 3784 (-0.21%)
VGPRs: 2784 -> 2716 (-2.44%)
CodeSize: 707492 -> 713080 (+0.79%)
MaxWaves: 873 -> 887 (+1.60%)
Instrs: 133376 -> 134524 (+0.86%)
Cycles: 3004772 -> 3011440 (+0.22%)
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6558 >
2020-10-13 12:47:21 +00:00
Rhys Perry
f83bc5beb8
nir: add pass to optimize uniform atomics
...
This optimizes atomics with a uniform offset so that only one atomic
operation is done in the subgroup.
For shaders which do a very large amount of atomics, this can
significantly improve performance.
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6558 >
2020-10-13 12:47:21 +00:00
