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aco: use nir_opt_uniform_atomics 

Significantly improves performance of a Control compute shader. Also seems
to increase FPS at the very start of the game by ~9% (RX 580, 1080p,
medium settings, no MSAA).

fossil-db (Navi):
Totals from 315 (0.23% of 135946) affected shaders:
SGPRs: 18296 -> 18336 (+0.22%); split: -0.26%, +0.48%
VGPRs: 11856 -> 11844 (-0.10%); split: -0.81%, +0.71%
CodeSize: 2233800 -> 2457508 (+10.01%)
MaxWaves: 4506 -> 4497 (-0.20%); split: +0.04%, -0.24%
Instrs: 438766 -> 486215 (+10.81%); split: -0.00%, +10.81%
Cycles: 7880180 -> 8963340 (+13.75%); split: -0.00%, +13.75%

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>
This commit is contained in:
Rhys Perry 2020-09-01 17:42:45 +01:00 committed by Marge Bot
parent f83bc5beb8
commit bcf7a70008
1 changed files with 3 additions and 0 deletions
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3
src/amd/compiler/aco_instruction_selection_setup.cpp
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@ -336,6 +336,8 @@ void apply_nuw_to_offsets(isel_context *ctx, nir_function_impl *impl)
struct hash_table *range_ht = _mesa_pointer_hash_table_create(NULL);
nir_metadata_require(impl, nir_metadata_dominance);
nir_foreach_block(block, impl) {
nir_foreach_instr(instr, block) {
if (instr->type != nir_instr_type_intrinsic)
@ -767,6 +769,7 @@ void init_context(isel_context *ctx, nir_shader *shader)
ctx->shader = shader;
nir_divergence_analysis(shader);
nir_opt_uniform_atomics(shader);
fill_desc_set_info(ctx, impl);