hg: shenandoah/jdk9/hotspot: Insert load-load fence in obj-eq-barrier, to prevent brooks ptr loads from floating above comparison.

[roman at kennke.org]

Changeset: a5ecc810e4b6
Author:    rkennke
Date:      2016-10-25 17:11 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk9/hotspot/rev/a5ecc810e4b6

Insert load-load fence in obj-eq-barrier, to prevent brooks ptr loads from floating above comparison.

! src/share/vm/gc/shenandoah/shenandoahBarrierSet.cpp