Files
stockfish/src/nnue
Linmiao XuandJoost VandeVondele 2cbf39f845 Split NEON sparse affine accumulation three ways
Speedup measured locally with apple-silicon M3 Pro:

```
Result of  50 runs
==================
base (./sf_master    ) =    1817788  +/- 4388
test (...on_sparse_3c) =    1839826  +/- 5482
diff                   =     +22039  +/- 3215

speedup        = +0.0121
P(speedup > 0) =  1.0000

CPU: 11 x arm
Hyperthreading: off
```

Passed STC:
https://tests.stockfishchess.org/tests/view/6a496a49f97ff95f78795b3d
LLR: 2.92 (-2.94,2.94) <0.00,2.00>
Total: 44384 W: 11659 L: 11351 D: 21374
Ptnml(0-2): 86, 4673, 12406, 4901, 126

closes https://github.com/official-stockfish/Stockfish/pull/6951

No functional change
2026-07-06 11:33:51 +02:00
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