Further improve compatibility when compiling on OS X

[stockfish] / src / types.h

diff --git a/src/types.h b/src/types.h
index ce73cab2964c9ecf618adf6fd46ef24b0b3255d2..0774557e000a421aa63a5958368f0fb04237960c 100644 (file)
--- a/src/types.h
+++ b/src/types.h
@@ -41,7 +41,7 @@
 
 #include "platform.h"
 
-#if defined(_WIN64)
+#if defined(_WIN64) && !defined(IS_64BIT)
 #  include <intrin.h> // MSVC popcnt and bsfq instrinsics
 #  define IS_64BIT
 #  define USE_BSFQ
@@ -51,6 +51,10 @@
 #  include <nmmintrin.h> // Intel header for _mm_popcnt_u64() intrinsic
 #endif
 
+#  if !defined(NO_PREFETCH) && (defined(__INTEL_COMPILER) || defined(_MSC_VER))
+#   include <xmmintrin.h> // Intel and Microsoft header for _mm_prefetch()
+#  endif
+
 #if defined(_MSC_VER) || defined(__INTEL_COMPILER)
 #  define CACHE_LINE_ALIGNMENT __declspec(align(64))
 #else