X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fmisc.cpp;h=608d772501fc54c70967d16e55ed80ba9cccb573;hp=627b5d4132defdb754d0f811dcd4cd49e1320508;hb=55bd27b8f08a151128d7065fa2819aa3e9605299;hpb=3caeabf73b12ad53ac7ba64122a2feab819c6527

diff --git a/src/misc.cpp b/src/misc.cpp
index 627b5d41..608d7725 100644
--- a/src/misc.cpp
+++ b/src/misc.cpp
@@ -33,7 +33,7 @@ using namespace std;
 /// Version number. If Version is left empty, then Tag plus current
 /// date (in the format YYMMDD) is used as a version number.
 
-static const string Version = "2.3.1";
+static const string Version = "";
 static const string Tag = "";
 
 
@@ -227,18 +227,21 @@ void prefetch(char*) {}
 
 #else
 
-#   include <xmmintrin.h>
-
 void prefetch(char* addr) {
 
-#  if defined(__INTEL_COMPILER) || defined(__ICL)
+#  if defined(__INTEL_COMPILER)
    // This hack prevents prefetches to be optimized away by
    // Intel compiler. Both MSVC and gcc seems not affected.
    __asm__ ("");
 #  endif
 
-  _mm_prefetch(addr, _MM_HINT_T2);
-  _mm_prefetch(addr+64, _MM_HINT_T2); // 64 bytes ahead
+#  if defined(__INTEL_COMPILER) || defined(_MSC_VER)
+  _mm_prefetch(addr, _MM_HINT_T0);
+  _mm_prefetch(addr+64, _MM_HINT_T0); // 64 bytes ahead
+#  else
+  __builtin_prefetch(addr);
+  __builtin_prefetch(addr+64);
+#  endif
 }
 
 #endif