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Simplify away pinnedPieces bitboard in EvalInfo (#975)

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Results for 20 tests for each version (pgo-builds):

            Base      Test      Diff      
    Mean    2110519   2118116   -7597     
    StDev   8727      4906      10112     

p-value: 0,774
speedup: 0,004

Further verified for no regression:
http://tests.stockfishchess.org/tests/view/5885abd10ebc5915193f79e6
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 21786 W: 3959 L: 3840 D: 13987

No functional change
This commit is contained in:
pb00068 2017-01-28 08:43:54 +01:00 • committed by Marco Costalba
parent cf4a38e0cb
commit 58c181de9a
1 changed files with 2 additions and 5 deletions
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7
src/evaluate.cpp
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@ -75,7 +75,6 @@ namespace {
Material::Entry* me; Material::Entry* me;
Pawns::Entry* pe; Pawns::Entry* pe;
Bitboard pinnedPieces[COLOR_NB];
Bitboard mobilityArea[COLOR_NB]; Bitboard mobilityArea[COLOR_NB];
// attackedBy[color][piece type] is a bitboard representing all squares // attackedBy[color][piece type] is a bitboard representing all squares
@ -230,8 +229,6 @@ namespace {
const Square Down = (Us == WHITE ? SOUTH : NORTH); const Square Down = (Us == WHITE ? SOUTH : NORTH);
const Bitboard LowRanks = (Us == WHITE ? Rank2BB | Rank3BB: Rank7BB | Rank6BB); const Bitboard LowRanks = (Us == WHITE ? Rank2BB | Rank3BB: Rank7BB | Rank6BB);
ei.pinnedPieces[Us] = pos.pinned_pieces(Us);
// Find our pawns on the first two ranks, and those which are blocked // Find our pawns on the first two ranks, and those which are blocked
Bitboard b = pos.pieces(Us, PAWN) & (shift<Down>(pos.pieces()) | LowRanks); Bitboard b = pos.pieces(Us, PAWN) & (shift<Down>(pos.pieces()) | LowRanks);
@ -283,7 +280,7 @@ namespace {
: Pt == ROOK ? attacks_bb< ROOK>(s, pos.pieces() ^ pos.pieces(Us, ROOK, QUEEN)) : Pt == ROOK ? attacks_bb< ROOK>(s, pos.pieces() ^ pos.pieces(Us, ROOK, QUEEN))
: pos.attacks_from<Pt>(s); : pos.attacks_from<Pt>(s);
if (ei.pinnedPieces[Us] & s) if (pos.pinned_pieces(Us) & s)
b &= LineBB[pos.square<KING>(Us)][s]; b &= LineBB[pos.square<KING>(Us)][s];
ei.attackedBy2[Us] |= ei.attackedBy[Us][ALL_PIECES] & b; ei.attackedBy2[Us] |= ei.attackedBy[Us][ALL_PIECES] & b;
@ -429,7 +426,7 @@ namespace {
kingDanger = std::min(807, ei.kingAttackersCount[Them] * ei.kingAttackersWeight[Them]) kingDanger = std::min(807, ei.kingAttackersCount[Them] * ei.kingAttackersWeight[Them])
+ 101 * ei.kingAdjacentZoneAttacksCount[Them] + 101 * ei.kingAdjacentZoneAttacksCount[Them]
+ 235 * popcount(undefended) + 235 * popcount(undefended)
+ 134 * (popcount(b) + !!ei.pinnedPieces[Us]) + 134 * (popcount(b) + !!pos.pinned_pieces(Us))
- 717 * !pos.count<QUEEN>(Them) - 717 * !pos.count<QUEEN>(Them)
- 7 * mg_value(score) / 5 - 5; - 7 * mg_value(score) / 5 - 5;