hg: shenandoah/jdk9/hotspot: Null check handling in PhaseIdealLoop::shenandoah_pin_and_expand_barriers() can break graph

[rwestrel at redhat.com]

Changeset: 119a579de3cd
Author:    roland
Date:      2016-11-07 14:37 +0100
URL:       http://hg.openjdk.java.net/shenandoah/jdk9/hotspot/rev/119a579de3cd

Null check handling in PhaseIdealLoop::shenandoah_pin_and_expand_barriers() can break graph

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