X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;ds=sidebyside;f=src%2Ftt.cpp;h=12e6b636d0b98be117782d5c20bf6486dfba5cab;hb=efdd1e697a15fba09355f3dbcb90d05524080665;hp=a2ad42d0e54f7af87e53b75fca03eb6a300da340;hpb=41816b7ced99c0bd096607fd8a35dbc0b427d455;p=stockfish

diff --git a/src/tt.cpp b/src/tt.cpp
index a2ad42d0..12e6b636 100644
--- a/src/tt.cpp
+++ b/src/tt.cpp
@@ -25,7 +25,7 @@
 #include <cassert>
 #include <cmath>
 #include <cstring>
-#if !(defined(__hpux) || defined(__ppc__) || defined(__ppc64__) || defined(__arm__))
+#if defined(USE_PREFETCH)
 #  include <xmmintrin.h>
 #endif
 
@@ -121,10 +121,6 @@ void TranspositionTable::store(const Key posKey, Value v, ValueType t, Depth d,
   {
       if (!tte->key() || tte->key() == posKey32) // empty or overwrite old
       {
-          // Do not overwrite when new type is VALUE_TYPE_EV_LO
-          if (tte->key() && t == VALUE_TYPE_EV_LO)
-              return;
-
           // Preserve any exsisting ttMove
           if (m == MOVE_NONE)
               m = tte->move();
@@ -170,8 +166,8 @@ TTEntry* TranspositionTable::retrieve(const Key posKey) const {
 /// to be loaded from RAM, that can be very slow. When we will
 /// subsequently call retrieve() the TT data will be already
 /// quickly accessible in L1/L2 CPU cache.
-#if defined(__hpux) || defined(__ppc__) || defined(__ppc64__) || defined(__arm__)
-void TranspositionTable::prefetch(const Key) const {} // Not supported on HP UX
+#if !defined(USE_PREFETCH)
+void TranspositionTable::prefetch(const Key) const {}
 #else
 
 void TranspositionTable::prefetch(const Key posKey) const {