ikrylov [Wed, 30 Mar 2016 17:04:09 +0200] rev 38335
8147844: new method j.l.Thread.onSpinWait() and the corresponding x86 hotspot instrinsic
Summary: see JEP-285 for details
Reviewed-by: psandoz, alanb, dholmes
Contributed-by: Gil Tene <gil@azul.com>, Ivan Krylov <ivan@azul.com>