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Change from [Color][PieceType] to [Piece]

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Speed up of almost 1% in both normal and
pgo builds.

No functional change.
This commit is contained in:
syzygy
2016-09-03 18:14:01 +02:00
committed by Marco Costalba
parent c5828c4eba
commit ca6c9f85a5
6 changed files with 124 additions and 119 deletions
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14
src/psqt.cpp
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@@ -99,25 +99,25 @@ const Score Bonus[][RANK_NB][int(FILE_NB) / 2] = {
#undef S
Score psq[COLOR_NB][PIECE_TYPE_NB][SQUARE_NB];
Score psq[PIECE_NB][SQUARE_NB];
// init() initializes piece-square tables: the white halves of the tables are
// copied from Bonus[] adding the piece value, then the black halves of the
// tables are initialized by flipping and changing the sign of the white scores.
void init() {
for (PieceType pt = PAWN; pt <= KING; ++pt)
for (Piece pc = W_PAWN; pc <= W_KING; ++pc)
{
PieceValue[MG][make_piece(BLACK, pt)] = PieceValue[MG][pt];
PieceValue[EG][make_piece(BLACK, pt)] = PieceValue[EG][pt];
PieceValue[MG][~pc] = PieceValue[MG][pc];
PieceValue[EG][~pc] = PieceValue[EG][pc];
Score v = make_score(PieceValue[MG][pt], PieceValue[EG][pt]);
Score v = make_score(PieceValue[MG][pc], PieceValue[EG][pc]);
for (Square s = SQ_A1; s <= SQ_H8; ++s)
{
File f = std::min(file_of(s), FILE_H - file_of(s));
psq[WHITE][pt][ s] = v + Bonus[pt][rank_of(s)][f];
psq[BLACK][pt][~s] = -psq[WHITE][pt][s];
psq[ pc][ s] = v + Bonus[pc][rank_of(s)][f];
psq[~pc][~s] = -psq[pc][s];
}
}
}