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nak: run nir_opt_constant_folding after nak_nir_lower_load_store

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It seems beneficial to run constant_folding after we lower our load/stores
as it allows nir_opt_offsets to move even more constants into the base
index.

This will prevent perf regressions when moving more lowering into
nak_nir_lower_load_store.

Totals from 78165 (6.44% of 1212873) affected shaders:
CodeSize: 1834431840 -> 1780937808 (-2.92%); split: -2.92%, +0.00%
Number of GPRs: 5233739 -> 5234571 (+0.02%); split: -0.01%, +0.03%
Static cycle count: 1855933069 -> 1851091739 (-0.26%); split: -0.26%, +0.00%
Spills to memory: 12453 -> 12451 (-0.02%)
Fills from memory: 12453 -> 12451 (-0.02%)
Spills to reg: 69790 -> 69754 (-0.05%); split: -0.08%, +0.03%
Fills from reg: 57092 -> 57072 (-0.04%); split: -0.07%, +0.03%
Max warps/SM: 2572632 -> 2572196 (-0.02%); split: +0.01%, -0.02%
This commit is contained in:
Karol Herbst 2026-04-12 17:44:06 +02:00 • committed by Karol Herbst
parent ce1a530d41
commit 356c279daa
1 changed files with 2 additions and 1 deletions
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3
src/nouveau/compiler/nak_nir.c
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@ -1307,7 +1307,8 @@ nak_postprocess_nir(nir_shader *nir,
UNREACHABLE("Unsupported shader stage");
}
OPT(nir, nak_nir_lower_load_store, nak);
if (OPT(nir, nak_nir_lower_load_store, nak))
OPT(nir, nir_opt_constant_folding);
struct nir_opt_offsets_options nak_offset_options = {
.max_offset_cb = nak_nir_max_imm_offset,