hg: shenandoah/jdk9/hotspot: Add null-checking to write-barriers in aarch64 C1 cas and xchg impls.

[roman at kennke.org]

Changeset: 358cf8e1ce6a
Author:    rkennke
Date:      2016-11-16 17:51 +0000
URL:       http://hg.openjdk.java.net/shenandoah/jdk9/hotspot/rev/358cf8e1ce6a

Add null-checking to write-barriers in aarch64 C1 cas and xchg impls.

! src/cpu/aarch64/vm/c1_LIRGenerator_aarch64.cpp