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Retire ss->bestMove

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And introduce SPlitPoint bestMove to pass back the
best move after a split point.

This allow to define as const the search stack passed
to split.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2012-02-20 14:21:25 +01:00
parent 43f84efa15
commit 2608b9249d
4 changed files with 33 additions and 30 deletions
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10
src/thread.cpp
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@@ -299,8 +299,8 @@ bool ThreadsManager::available_slave_exists(int master) const {
template <bool Fake>
Value ThreadsManager::split(Position& pos, Stack* ss, Value alpha, Value beta,
Value bestValue, Depth depth, Move threatMove,
int moveCount, MovePicker* mp, int nodeType) {
Value bestValue, Move* bestMove, Depth depth,
Move threatMove, int moveCount, MovePicker *mp, int nodeType) {
assert(pos.pos_is_ok());
assert(bestValue > -VALUE_INFINITE);
assert(bestValue <= alpha);
@@ -324,6 +324,7 @@ Value ThreadsManager::split(Position& pos, Stack* ss, Value alpha, Value beta,
sp->cutoff = false;
sp->slavesMask = 1ULL << master;
sp->depth = depth;
sp->bestMove = *bestMove;
sp->threatMove = threatMove;
sp->alpha = alpha;
sp->beta = beta;
@@ -387,6 +388,7 @@ Value ThreadsManager::split(Position& pos, Stack* ss, Value alpha, Value beta,
masterThread.splitPointsCnt--;
masterThread.curSplitPoint = sp->parent;
pos.set_nodes_searched(pos.nodes_searched() + sp->nodes);
*bestMove = sp->bestMove;
lock_release(splitLock);
lock_release(sp->lock);
@@ -395,8 +397,8 @@ Value ThreadsManager::split(Position& pos, Stack* ss, Value alpha, Value beta,
}
// Explicit template instantiations
template Value ThreadsManager::split<false>(Position&, Stack*, Value, Value, Value, Depth, Move, int, MovePicker*, int);
template Value ThreadsManager::split<true>(Position&, Stack*, Value, Value, Value, Depth, Move, int, MovePicker*, int);
template Value ThreadsManager::split<false>(Position&, Stack*, Value, Value, Value, Move*, Depth, Move, int, MovePicker*, int);
template Value ThreadsManager::split<true>(Position&, Stack*, Value, Value, Value, Move*, Depth, Move, int, MovePicker*, int);
// ThreadsManager::set_timer() is used to set the timer to trigger after msec