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Clean up repetitive declarations for see_ge

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The occupied bitboard is only used in one place and is otherwise thrown away.
To simplify use, see_ge function can instead be overloaded.
Repetitive declarations for occupied bitboard can be removed.

Passed non-regression test
https://tests.stockfishchess.org/tests/view/6421c286db43ab2ba6f908eb
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 48912 W: 13196 L: 13001 D: 22715
Ptnml(0-2): 146, 5003, 13967, 5190, 150

closes https://github.com/official-stockfish/Stockfish/pull/4469

No functional change.
This commit is contained in:
Miguel Lahoz
2023-03-28 00:06:24 +08:00
committed by Joost VandeVondele
parent 37160c4b16
commit a9c26357de
5 changed files with 12 additions and 9 deletions
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8
src/search.cpp
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@@ -1058,9 +1058,8 @@ moves_loop: // When in check, search starts here
lmrDepth = std::max(lmrDepth, 0);
Bitboard occupied;
// Prune moves with negative SEE (~4 Elo)
if (!pos.see_ge(move, occupied, Value(-24 * lmrDepth * lmrDepth - 15 * lmrDepth)))
if (!pos.see_ge(move, Value(-24 * lmrDepth * lmrDepth - 15 * lmrDepth)))
continue;
}
}
@@ -1545,7 +1544,6 @@ moves_loop: // When in check, search starts here
prevSq);
int quietCheckEvasions = 0;
Bitboard occupied;
// Step 5. Loop through all pseudo-legal moves until no moves remain
// or a beta cutoff occurs.
@@ -1582,7 +1580,7 @@ moves_loop: // When in check, search starts here
continue;
}
if (futilityBase <= alpha && !pos.see_ge(move, occupied, VALUE_ZERO + 1))
if (futilityBase <= alpha && !pos.see_ge(move, VALUE_ZERO + 1))
{
bestValue = std::max(bestValue, futilityBase);
continue;
@@ -1601,7 +1599,7 @@ moves_loop: // When in check, search starts here
continue;
// Do not search moves with bad enough SEE values (~5 Elo)
if (!pos.see_ge(move, occupied, Value(-110)))
if (!pos.see_ge(move, Value(-110)))
continue;
}