hg: jdk8u/hs-dev/hotspot: 8054927: Missing MemNode::acquire ordering in some volatile Load nodes

[vladimir.kozlov at oracle.com]

Changeset: d8847542f83a
Author:    kvn
Date:      2014-08-13 13:05 -0700
URL:       http://hg.openjdk.java.net/jdk8u/hs-dev/hotspot/rev/d8847542f83a

8054927: Missing MemNode::acquire ordering in some volatile Load nodes
Summary: Fixed memory ordering parameter and added missing barriers for volatile loads.
Reviewed-by: roland, iveresov

! src/share/vm/opto/library_call.cpp