X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Ftt.cpp;h=271b98b74009eaf8f7e5e6601c5225c33a5be7f5;hp=f4e5535430d85a47246b3921196171ac1af7dd14;hb=481eda4ca0121cfa16f5a29f364ca30ee2852409;hpb=a7cdf7299a771949332f8c7ef77ae8fd125d0f08

diff --git a/src/tt.cpp b/src/tt.cpp
index f4e55354..271b98b7 100644
--- a/src/tt.cpp
+++ b/src/tt.cpp
@@ -1,7 +1,7 @@
 /*
   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
   Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
-  Copyright (C) 2008-2012 Marco Costalba, Joona Kiiski, Tord Romstad
+  Copyright (C) 2008-2013 Marco Costalba, Joona Kiiski, Tord Romstad
 
   Stockfish is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -40,16 +40,18 @@ void TranspositionTable::set_size(size_t mbSize) {
       return;
 
   hashMask = size - ClusterSize;
-  delete [] table;
-  table = new (std::nothrow) TTEntry[size];
+  free(mem);
+  mem = malloc(size * sizeof(TTEntry) + CACHE_LINE_SIZE - 1);
 
-  if (!table)
+  if (!mem)
   {
       std::cerr << "Failed to allocate " << mbSize
                 << "MB for transposition table." << std::endl;
       exit(EXIT_FAILURE);
   }
 
+  // Align table start address to a cache line
+  for (char* c = (char*)mem; unsigned(table = (TTEntry*)(c)) % CACHE_LINE_SIZE; c++) {}
   clear(); // Operator new is not guaranteed to initialize memory to zero
 }