src/share/vm/opto/classes.hpp

rev 10271 : 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
Reviewed-by: iveresov, kvn, vlivanov
Contributed-by: Ivan Krylov <ivan@azul.com>, Yuri Gaevsky <ygaevsky@azul.com>

*** 195,204 ****
--- 195,205 ----
  macro(MulL)
  macro(Multi)
  macro(NegD)
  macro(NegF)
  macro(NeverBranch)
+ macro(OnSpinWait)
  macro(Opaque1)
  macro(Opaque2)
  macro(Opaque3)
  macro(ProfileBoolean)
  macro(OrI)