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Small micro-optimization in get_pawn_info()

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No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba 2009-10-09 11:29:11 +01:00
parent f05d059b17
commit 564ed5b38c
1 changed files with 4 additions and 5 deletions
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9
src/pawns.cpp
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@ -303,12 +303,11 @@ PawnInfo* PawnInfoTable::get_pawn_info(const Position& pos) {
// it cannot be backward. If can capture an enemy pawn or if // it cannot be backward. If can capture an enemy pawn or if
// there are friendly pawns behind on neighboring files it cannot // there are friendly pawns behind on neighboring files it cannot
// be backward either. // be backward either.
bool backward; bool backward;
if ( passed if ( (passed | isolated | chain)
|| isolated || (ourPawns & behind_bb(us, r) & neighboring_files_bb(f))
|| chain || (pos.attacks_from<PAWN>(s, us) & theirPawns))
|| (pos.attacks_from<PAWN>(s, us) & theirPawns)
|| (ourPawns & behind_bb(us, r) & neighboring_files_bb(f)))
backward = false; backward = false;
else else
{ {