Small cleanup of unused code in sp_search

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index ac90531f8c618a44c983cbbc3d4454f71163a97f..64cdf1c4e5fac5f27d679e7ed4c2ad865c961a19 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -1328,11 +1328,11 @@ namespace {
     const TTEntry* tte;
     Move ttMove, move;
     Depth ext, newDepth;
-    Value staticValue, nullValue, value, futilityValue, futilityValueScaled;
+    Value bestValue, staticValue, nullValue, value, futilityValue, futilityValueScaled;
     bool isCheck, useFutilityPruning, singleEvasion, moveIsCheck, captureOrPromotion, dangerous;
     bool mateThreat = false;
     int moveCount = 0;
-    Value bestValue = -VALUE_INFINITE;
+    futilityValue = staticValue = bestValue = -VALUE_INFINITE;
 
     if (depth < OnePly)
         return qsearch(pos, ss, beta-1, beta, Depth(0), ply, threadID);
@@ -1817,7 +1817,6 @@ namespace {
                               && !isCheck;
 
     const int FutilityMoveCountMargin = 3 + (1 << (3 * int(sp->depth) / 8));
-    const int FutilityValueMargin = 112 * bitScanReverse32(int(sp->depth) * int(sp->depth) / 2);
 
     while (    sp->bestValue < sp->beta
            && !thread_should_stop(threadID)
@@ -1851,12 +1850,6 @@ namespace {
               continue;
 
           // Value based pruning
-          if (sp->futilityValue == VALUE_NONE)
-          {
-              EvalInfo ei;
-              sp->futilityValue = evaluate(pos, ei, threadID) + FutilityValueMargin;
-          }
-
           Value futilityValueScaled = sp->futilityValue - moveCount * IncrementalFutilityMargin;
 
           if (futilityValueScaled < sp->beta)