Remove the now redundant TT prefetch call from Position::do_move.

[stockfish] / src / movepick.cpp

diff --git a/src/movepick.cpp b/src/movepick.cpp
index 4e31037c0af48d39f9319a36d8fc2a857b358ef4..95172b944c13705182f6c1a7842deece827448e5 100644 (file)
--- a/src/movepick.cpp
+++ b/src/movepick.cpp
@@ -81,7 +81,7 @@ MovePicker::MovePicker(const Position& p, Move ttm, Depth d, const HistoryStats&
   followupmoves = fm;
   ss = s;
 
-  if (p.checkers())
+  if (pos.checkers())
       stage = EVASION;
 
   else
@@ -92,11 +92,11 @@ MovePicker::MovePicker(const Position& p, Move ttm, Depth d, const HistoryStats&
 }
 
 MovePicker::MovePicker(const Position& p, Move ttm, Depth d, const HistoryStats& h,
-                       Square sq) : pos(p), history(h), cur(moves), end(moves) {
+                       Square s) : pos(p), history(h), cur(moves), end(moves) {
 
   assert(d <= DEPTH_ZERO);
 
-  if (p.checkers())
+  if (pos.checkers())
       stage = EVASION;
 
   else if (d > DEPTH_QS_NO_CHECKS)
@@ -115,7 +115,7 @@ MovePicker::MovePicker(const Position& p, Move ttm, Depth d, const HistoryStats&
   else
   {
       stage = RECAPTURE;
-      recaptureSquare = sq;
+      recaptureSquare = s;
       ttm = MOVE_NONE;
   }
 
@@ -165,13 +165,13 @@ void MovePicker::score<CAPTURES>() {
   {
       m = it->move;
       it->value =  PieceValue[MG][pos.piece_on(to_sq(m))]
-                 - type_of(pos.moved_piece(m));
+                 - Value(type_of(pos.moved_piece(m)));
 
-      if (type_of(m) == PROMOTION)
-          it->value += PieceValue[MG][promotion_type(m)] - PieceValue[MG][PAWN];
-
-      else if (type_of(m) == ENPASSANT)
+      if (type_of(m) == ENPASSANT)
           it->value += PieceValue[MG][PAWN];
+
+      else if (type_of(m) == PROMOTION)
+          it->value += PieceValue[MG][promotion_type(m)] - PieceValue[MG][PAWN];
   }
 }
 
@@ -203,7 +203,7 @@ void MovePicker::score<EVASIONS>() {
 
       else if (pos.capture(m))
           it->value =  PieceValue[MG][pos.piece_on(to_sq(m))]
-                     - type_of(pos.moved_piece(m)) + HistoryStats::Max;
+                     - Value(type_of(pos.moved_piece(m))) + HistoryStats::Max;
       else
           it->value = history[pos.moved_piece(m)][to_sq(m)];
   }
@@ -283,6 +283,8 @@ void MovePicker::generate_next_stage() {
 
   case EVASION: case QSEARCH_0: case QSEARCH_1: case PROBCUT: case RECAPTURE:
       stage = STOP;
+      /* Fall through */
+
   case STOP:
       end = cur + 1; // Avoid another next_phase() call
       return;
@@ -328,8 +330,8 @@ Move MovePicker::next_move<false>() {
       case KILLERS_S1:
           move = (cur++)->move;
           if (    move != MOVE_NONE
-              &&  pos.pseudo_legal(move)
               &&  move != ttMove
+              &&  pos.pseudo_legal(move)
               && !pos.capture(move))
               return move;
           break;