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Code Issues Releases Wiki Activity

Retire update_killers()

Browse source 
No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba 2011-04-01 13:36:14 +02:00
parent d173285da5
commit 8d4caebabe
1 changed files with 6 additions and 15 deletions
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21
src/search.cpp
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@ -300,7 +300,6 @@ namespace {
bool connected_threat(const Position& pos, Move m, Move threat); bool connected_threat(const Position& pos, Move m, Move threat);
Value refine_eval(const TTEntry* tte, Value defaultEval, int ply); Value refine_eval(const TTEntry* tte, Value defaultEval, int ply);
void update_history(const Position& pos, Move move, Depth depth, Move movesSearched[], int moveCount); void update_history(const Position& pos, Move move, Depth depth, Move movesSearched[], int moveCount);
void update_killers(Move m, Move killers[]);
void update_gains(const Position& pos, Move move, Value before, Value after); void update_gains(const Position& pos, Move move, Value before, Value after);
int current_search_time(); int current_search_time();
@ -1347,8 +1346,12 @@ split_point_start: // At split points actual search starts from here
if ( bestValue >= beta if ( bestValue >= beta
&& !pos.move_is_capture_or_promotion(move)) && !pos.move_is_capture_or_promotion(move))
{ {
if (move != ss->killers[0])
{
ss->killers[1] = ss->killers[0];
ss->killers[0] = move;
}
update_history(pos, move, depth, movesSearched, playedMoveCount); update_history(pos, move, depth, movesSearched, playedMoveCount);
update_killers(move, ss->killers);
} }
} }
@ -1867,19 +1870,6 @@ split_point_start: // At split points actual search starts from here
} }
// update_killers() add a good move that produced a beta-cutoff
// among the killer moves of that ply.
void update_killers(Move m, Move killers[]) {
if (m != killers[0])
{
killers[1] = killers[0];
killers[0] = m;
}
}
// update_gains() updates the gains table of a non-capture move given // update_gains() updates the gains table of a non-capture move given
// the static position evaluation before and after the move. // the static position evaluation before and after the move.
@ -1893,6 +1883,7 @@ split_point_start: // At split points actual search starts from here
H.update_gain(pos.piece_on(move_to(m)), move_to(m), -(before + after)); H.update_gain(pos.piece_on(move_to(m)), move_to(m), -(before + after));
} }
// current_search_time() returns the number of milliseconds which have passed // current_search_time() returns the number of milliseconds which have passed
// since the beginning of the current search. // since the beginning of the current search.