Gian-Carlo Pascutto c6f62363a6 Simplify Square Clipped ReLU code. ...

Squared numbers are never negative, so barring any wraparound there
is no need to clamp to 0. From reading the code, there's no obvious
way to get wraparound, so the entire operation can be simplified
away. Updated original truncated code comments to be sensible.

Verified by running ./stockfish bench 128 1 24 and by the following test:

STC: https://tests.stockfishchess.org/tests/view/64da4db95b17f7c21c0eabe7
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 60224 W: 15425 L: 15236 D: 29563
Ptnml(0-2): 195, 6576, 16382, 6763, 196

closes https://github.com/official-stockfish/Stockfish/pull/4751

No functional change

2023-08-22 11:14:19 +02:00

..

incbin

Change mode of incbin.h

2023-03-14 08:23:50 +01:00

nnue

Simplify Square Clipped ReLU code.

2023-08-22 11:14:19 +02:00

syzygy

Fix some 'possible loss of data' warnings

2023-08-22 10:39:03 +02:00

benchmark.cpp

Improve some comments

2023-07-28 23:38:49 +02:00

benchmark.h

Warn if a global function has no previous declaration

2023-01-09 20:18:39 +01:00

bitboard.cpp

Remove precomputed SquareBB

2023-01-22 10:55:32 +01:00

bitboard.h

Unused code cleanup

2023-07-19 21:38:39 +02:00

evaluate.cpp

Simplify material difference in evaluate

2023-08-13 11:59:06 +02:00

evaluate.h

Cleanup code after removal of classical evaluation

2023-07-13 08:19:37 +02:00

main.cpp

Remove classical psqt

2023-08-06 22:16:52 +02:00

Makefile

Fix some tabs in Makefile

2023-08-22 10:59:39 +02:00

misc.cpp

Fix some 'possible loss of data' warnings

2023-08-22 10:39:03 +02:00

misc.h

Unused code cleanup

2023-07-19 21:38:39 +02:00

movegen.cpp

Fix capturing underpromotions issue

2023-04-12 20:38:43 +02:00

movegen.h

Update copyright years

2023-01-02 19:07:38 +01:00

movepick.cpp

Simplify pieceValue to one phase.

2023-08-13 11:58:08 +02:00

movepick.h

Remove unneeded bitboard from MP

2023-04-05 08:10:34 +02:00

position.cpp

Simplify pieceValue to one phase.

2023-08-13 11:58:08 +02:00

position.h

Remove classical psqt

2023-08-06 22:16:52 +02:00

search.cpp

Simplify PvNode Reduction

2023-08-16 21:24:58 +02:00

search.h

Unify type alias declarations

2023-02-27 08:29:47 +01:00

thread_win32_osx.h

Modernize code base a little bit

2023-01-09 20:25:13 +01:00

thread.cpp

Simplify away complexity in evaluation

2023-04-22 10:43:29 +02:00

thread.h

Remove classical evaluation

2023-07-11 22:56:49 +02:00

timeman.cpp

Check clock more often

2023-07-24 01:56:20 +02:00

timeman.h

Update copyright years

2023-01-02 19:07:38 +01:00

tt.cpp

Use int conversion for Option class

2023-04-10 09:27:35 +02:00

tt.h

Update copyright years

2023-01-02 19:07:38 +01:00

tune.cpp

Remove all references to Score type

2023-08-09 18:27:16 +02:00

tune.h

Remove all references to Score type

2023-08-09 18:27:16 +02:00

types.h

Simplify pieceValue to one phase.

2023-08-13 11:58:08 +02:00

uci.cpp

Improve testing coverage, remove unused code

2023-08-11 19:27:46 +02:00

uci.h

Consolidate to centipawns conversion

2023-07-16 15:14:50 +02:00

ucioption.cpp

Remove classical evaluation

2023-07-11 22:56:49 +02:00