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small speed-up in movegen

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pass color as a template parameter.

closes https://github.com/official-stockfish/Stockfish/pull/2715

No functional change.
This commit is contained in:
protonspring 2020-06-03 18:06:49 -06:00 • committed by Joost VandeVondele
parent 784263596f
commit fd8e88427b
1 changed files with 8 additions and 9 deletions
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17
src/movegen.cpp
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@ -179,13 +179,12 @@ namespace {
}
template<PieceType Pt, bool Checks>
ExtMove* generate_moves(const Position& pos, ExtMove* moveList, Color us,
Bitboard target) {
template<Color Us, PieceType Pt, bool Checks>
ExtMove* generate_moves(const Position& pos, ExtMove* moveList, Bitboard target) {
static_assert(Pt != KING && Pt != PAWN, "Unsupported piece type in generate_moves()");
const Square* pl = pos.squares<Pt>(us);
const Square* pl = pos.squares<Pt>(Us);
for (Square from = *pl; from != SQ_NONE; from = *++pl)
{
@ -195,7 +194,7 @@ namespace {
&& !(attacks_bb<Pt>(from) & target & pos.check_squares(Pt)))
continue;
if (pos.blockers_for_king(~us) & from)
if (pos.blockers_for_king(~Us) & from)
continue;
}
@ -240,10 +239,10 @@ namespace {
}
moveList = generate_pawn_moves<Us, Type>(pos, moveList, target);
moveList = generate_moves<KNIGHT, Checks>(pos, moveList, Us, target);
moveList = generate_moves<BISHOP, Checks>(pos, moveList, Us, target);
moveList = generate_moves< ROOK, Checks>(pos, moveList, Us, target);
moveList = generate_moves< QUEEN, Checks>(pos, moveList, Us, target);
moveList = generate_moves<Us, KNIGHT, Checks>(pos, moveList, target);
moveList = generate_moves<Us, BISHOP, Checks>(pos, moveList, target);
moveList = generate_moves<Us, ROOK, Checks>(pos, moveList, target);
moveList = generate_moves<Us, QUEEN, Checks>(pos, moveList, target);
if (Type != QUIET_CHECKS && Type != EVASIONS)
{