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Simplify Declaration on Pawn Move Generation 

Removes possible micro-optimization in favor of readability.

STC:
LLR: 2.95 (-2.94,2.94) <-2.50,0.50>
Total: 75432 W: 5824 L: 5777 D: 63831
Ptnml(0-2): 178, 4648, 28036, 4657, 197
https://tests.stockfishchess.org/tests/view/611fa7f84977aa1525c9cb75

LTC:
LLR: 2.93 (-2.94,2.94) <-2.50,0.50>
Total: 41200 W: 1156 L: 1106 D: 38938
Ptnml(0-2): 13, 981, 18562, 1031, 13
https://tests.stockfishchess.org/tests/view/611fcc694977aa1525c9cb9b

Closes https://github.com/official-stockfish/Stockfish/pull/3669

No functional change
pull/3671/head
bmc4 2021-08-21 01:53:03 -03:00 committed by Joost VandeVondele
parent 590447d7a1
commit d754ea50a8
1 changed files with 3 additions and 3 deletions
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6
src/movegen.cpp
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@ -52,9 +52,9 @@ namespace {
constexpr Direction UpRight = (Us == WHITE ? NORTH_EAST : SOUTH_WEST);
constexpr Direction UpLeft = (Us == WHITE ? NORTH_WEST : SOUTH_EAST);
const Bitboard emptySquares = Type == QUIETS || Type == QUIET_CHECKS ? target : ~pos.pieces();
const Bitboard enemies = Type == EVASIONS ? pos.checkers()
: Type == CAPTURES ? target : pos.pieces(Them);
const Bitboard emptySquares = ~pos.pieces();
const Bitboard enemies = Type == EVASIONS ? pos.checkers()
: pos.pieces(Them);
Bitboard pawnsOn7 = pos.pieces(Us, PAWN) & TRank7BB;
Bitboard pawnsNotOn7 = pos.pieces(Us, PAWN) & ~TRank7BB;