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nak: Call nir_lower_undef_to_zero

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Totals:
CodeSize: 4571686864 -> 4545122720 (-0.58%); split: -0.59%, +0.01%
Number of GPRs: 10994283 -> 10963889 (-0.28%); split: -0.28%, +0.00%
SLM Size: 1893964 -> 1855380 (-2.04%)
Static cycle count: 1114502308 -> 1104322907 (-0.91%); split: -0.93%, +0.02%
Spills to memory: 573363 -> 480689 (-16.16%)
Fills from memory: 573363 -> 480689 (-16.16%)
Spills to reg: 1625502 -> 458804 (-71.77%); split: -71.78%, +0.00%
Fills from reg: 878478 -> 303068 (-65.50%); split: -65.50%, +0.00%
Max warps/SM: 7235748 -> 7245516 (+0.13%)

Totals from 25050 (12.75% of 196502) affected shaders:
CodeSize: 1870779504 -> 1844215360 (-1.42%); split: -1.45%, +0.03%
Number of GPRs: 2578387 -> 2547993 (-1.18%); split: -1.18%, +0.00%
SLM Size: 890840 -> 852256 (-4.33%)
Static cycle count: 439061010 -> 428881609 (-2.32%); split: -2.37%, +0.05%
Spills to memory: 268807 -> 176133 (-34.48%)
Fills from memory: 268807 -> 176133 (-34.48%)
Spills to reg: 1485538 -> 318840 (-78.54%); split: -78.54%, +0.00%
Fills from reg: 753623 -> 178213 (-76.35%); split: -76.35%, +0.00%
Max warps/SM: 556844 -> 566612 (+1.75%)

Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35100>
This commit is contained in:
Mel Henning
2025-05-22 18:23:33 -04:00
committed by Marge Bot
parent 9d620fabd2
commit 59308f92bf
1 changed files with 1 additions and 0 deletions
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src/nouveau/compiler/nak_nir.c
+1
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@@ -172,6 +172,7 @@ optimize_nir(nir_shader *nir, const struct nak_compiler *nak, bool allow_copies)
OPT(nir, nir_opt_gcm, false);
OPT(nir, nir_opt_undef);
} while (progress);
OPT(nir, nir_lower_undef_to_zero);
OPT(nir, nir_remove_dead_variables, nir_var_function_temp, NULL);
}