src/hotspot/share/runtime/os.hpp

rev 51258 : [mq]: spin

*** 1032,1039 ****
--- 1032,1046 ----
  // Note that "PAUSE" is almost always used with synchronization
  // so arguably we should provide Atomic::SpinPause() instead
  // of the global SpinPause() with C linkage.
  // It'd also be eligible for inlining on many platforms.
  
+ #if defined(X86) && !defined(_WINDOWS)
+ extern "C" int inline SpinPause() {
+   __asm__ __volatile__ ("pause");
+   return 1;
+ }
+ #else
  extern "C" int SpinPause();
+ #endif
  
  #endif // SHARE_VM_RUNTIME_OS_HPP