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Revert "Delayed killers checking" 

It seems a slowdown when run with fishbench.

No functional change.
pull/268/head
Marco Costalba 2015-02-15 11:24:34 +01:00
parent e38eb2302d
commit 901bfb1f55
1 changed files with 20 additions and 11 deletions
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31
src/movepick.cpp
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@ -201,13 +201,28 @@ void MovePicker::generate_next_stage() {
case KILLERS_S1:
cur = killers;
endMoves = cur + 6;
endMoves = cur + 2;
killers[0] = ss->killers[0];
killers[1] = ss->killers[1];
killers[2] = countermoves[0];
killers[3] = countermoves[1];
killers[4] = followupmoves[0];
killers[5] = followupmoves[1];
killers[2].move = killers[3].move = MOVE_NONE;
killers[4].move = killers[5].move = MOVE_NONE;
// In SMP case countermoves[] and followupmoves[] could have duplicated entries
// in rare cases (less than 1 out of a million). This is harmless.
// Be sure countermoves and followupmoves are different from killers
for (int i = 0; i < 2; ++i)
if ( countermoves[i] != killers[0]
&& countermoves[i] != killers[1])
*endMoves++ = countermoves[i];
for (int i = 0; i < 2; ++i)
if ( followupmoves[i] != killers[0]
&& followupmoves[i] != killers[1]
&& followupmoves[i] != killers[2]
&& followupmoves[i] != killers[3])
*endMoves++ = followupmoves[i];
break;
case QUIETS_1_S1:
@ -292,13 +307,7 @@ Move MovePicker::next_move<false>() {
&& move != ttMove
&& pos.pseudo_legal(move)
&& !pos.capture(move))
{
for (int i = 0; i < cur - 1 - killers; i++) // Skip duplicated
if (move == killers[i])
goto skip;
return move;
}
skip:
break;
case QUIETS_1_S1: case QUIETS_2_S1: