hg: hsx/hotspot-main/jdk: 8004318: JEP-171: Support Unsafe fences intrinsics

[vladimir.kozlov at oracle.com]

Changeset: ad6097d547e1
Author:    kvn
Date:      2012-12-18 17:47 -0800
URL:       http://hg.openjdk.java.net/hsx/hotspot-main/jdk/rev/ad6097d547e1

8004318: JEP-171: Support Unsafe fences intrinsics
Summary: Add three memory-ordering intrinsics to the sun.misc.Unsafe class.
Reviewed-by: twisti, kvn
Contributed-by: Aleksey Shipilev <aleksey.shipilev at oracle.com>

! src/share/classes/sun/misc/Unsafe.java