src/share/vm/c1/c1_LIRAssembler.cpp

rev 10065 : 8147844: new method j.l.Runtime.onSpinWait() and the corresponding x86 hotspot instrinsic
Summary: adds c1 & c2 x86 intrinsics for j.l.Runtime.onSpinWait() that utilize the 'pause' instruction
Contributed-by: ikrylov, ygaevsky
Reviewed-by: iveresov, vlivanov, kvn

@@ -677,10 +677,14 @@
 
     case lir_get_thread:
       get_thread(op->result_opr());
       break;
 
+    case lir_on_spin_wait:
+      on_spin_wait();
+      break;
+
     default:
       ShouldNotReachHere();
       break;
   }
 }