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Optimize order of a few conditions in search

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Also fix size of KingDanger array to reduce memory footprint.

Small speed up of around 0.5%

No functional change.
This commit is contained in:
ajithcj
2016-08-31 13:47:45 +02:00
committed by Marco Costalba
parent 2731bbaf6b
commit 5cffc032da
2 changed files with 5 additions and 5 deletions
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src/search.cpp
+4 -4
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@@ -725,8 +725,8 @@ namespace {
// Step 6. Razoring (skipped when in check)
if ( !PvNode
&& depth < 4 * ONE_PLY
&& eval + razor_margin[depth / ONE_PLY] <= alpha
&& ttMove == MOVE_NONE)
&& ttMove == MOVE_NONE
&& eval + razor_margin[depth / ONE_PLY] <= alpha)
{
if ( depth <= ONE_PLY
&& eval + razor_margin[3 * ONE_PLY] <= alpha)
@@ -924,8 +924,8 @@ moves_loop: // When in check search starts from here
&& !captureOrPromotion
&& !inCheck
&& !givesCheck
&& !pos.advanced_pawn_push(move)
&& bestValue > VALUE_MATED_IN_MAX_PLY)
&& bestValue > VALUE_MATED_IN_MAX_PLY
&& !pos.advanced_pawn_push(move))
{
// Move count based pruning
if (moveCountPruning)