Retire CACHE_LINE_ALIGNMENT

Speed tests showed no benefit. No functional change. Resolves #97
official-stockfish · Nov 7, 2014 · 375797d · 375797d
1 parent 8e98bd6
commit 375797d
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Showing 4 changed files with 0 additions and 15 deletions.
diff --git a/src/bitboard.cpp b/src/bitboard.cpp
@@ -24,8 +24,6 @@
 #include "bitcount.h"
 #include "rkiss.h"
 
-CACHE_LINE_ALIGNMENT
-
 Bitboard RMasks[SQUARE_NB];
 Bitboard RMagics[SQUARE_NB];
 Bitboard* RAttacks[SQUARE_NB];
@@ -58,8 +56,6 @@ namespace {
   const uint64_t DeBruijn_64 = 0x3F79D71B4CB0A89ULL;
   const uint32_t DeBruijn_32 = 0x783A9B23;
 
-  CACHE_LINE_ALIGNMENT
-
   int MS1BTable[256];
   Square BSFTable[SQUARE_NB];
   Bitboard RTable[0x19000]; // Storage space for rook attacks

diff --git a/src/bitboard.h b/src/bitboard.h
@@ -57,8 +57,6 @@ const Bitboard Rank6BB = Rank1BB << (8 * 5);
 const Bitboard Rank7BB = Rank1BB << (8 * 6);
 const Bitboard Rank8BB = Rank1BB << (8 * 7);
 
-CACHE_LINE_ALIGNMENT
-
 extern Bitboard RMasks[SQUARE_NB];
 extern Bitboard RMagics[SQUARE_NB];
 extern Bitboard* RAttacks[SQUARE_NB];

diff --git a/src/position.cpp b/src/position.cpp
@@ -34,8 +34,6 @@
 
 using std::string;
 
-CACHE_LINE_ALIGNMENT
-
 Value PieceValue[PHASE_NB][PIECE_NB] = {
 { VALUE_ZERO, PawnValueMg, KnightValueMg, BishopValueMg, RookValueMg, QueenValueMg },
 { VALUE_ZERO, PawnValueEg, KnightValueEg, BishopValueEg, RookValueEg, QueenValueEg } };

diff --git a/src/types.h b/src/types.h
@@ -65,11 +65,6 @@
 #  endif
 
 #define CACHE_LINE_SIZE 64
-#if defined(_MSC_VER) || defined(__INTEL_COMPILER)
-#  define CACHE_LINE_ALIGNMENT __declspec(align(CACHE_LINE_SIZE))
-#else
-#  define CACHE_LINE_ALIGNMENT  __attribute__ ((aligned(CACHE_LINE_SIZE)))
-#endif
 
 #ifdef _MSC_VER
 #  define FORCE_INLINE  __forceinline
@@ -326,8 +321,6 @@ inline Score operator/(Score s, int i) {
   return make_score(mg_value(s) / i, eg_value(s) / i);
 }
 
-CACHE_LINE_ALIGNMENT
-
 extern Value PieceValue[PHASE_NB][PIECE_NB];
 
 struct ExtMove {