X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fmisc.cpp;h=608d772501fc54c70967d16e55ed80ba9cccb573;hp=ababdbc1d7df8d4276e0de838a0ef34e5faf3071;hb=dae843d4d6cba8593a0426c9a2f7418a3c76d7f8;hpb=92e759a676b5f2886160fc8f43744f137a0a19b1

diff --git a/src/misc.cpp b/src/misc.cpp
index ababdbc1..608d7725 100644
--- a/src/misc.cpp
+++ b/src/misc.cpp
@@ -68,6 +68,13 @@ const string engine_info(bool to_uci) {
 }
 
 
+/// Convert system time to milliseconds. That's all we need.
+
+Time::point Time::now() {
+  sys_time_t t; system_time(&t); return time_to_msec(t);
+}
+
+
 /// Debug functions used mainly to collect run-time statistics
 
 static uint64_t hits[2], means[2];
@@ -201,7 +208,7 @@ void timed_wait(WaitCondition& sleepCond, Lock& sleepLock, int msec) {
   int tm = msec;
 #else
   timespec ts, *tm = &ts;
-  uint64_t ms = Time::current_time().msec() + msec;
+  uint64_t ms = Time::now() + msec;
 
   ts.tv_sec = ms / 1000;
   ts.tv_nsec = (ms % 1000) * 1000000LL;
@@ -220,18 +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