hg: shenandoah/jdk8u/hotspot: Prevent C2 optimization that turns oop arraycopy into int arraycopy and elide the required post-barrier.

[roman at kennke.org]

Changeset: cb8a8ef885c3
Author:    rkennke
Date:      2016-12-15 17:10 +0100
URL:       http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/cb8a8ef885c3

Prevent C2 optimization that turns oop arraycopy into int arraycopy and elide the required post-barrier.

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