hg: jdk/jdk: 8208601: Introduce native oop barriers in C2 for OopHandle

[erik.osterlund at oracle.com]

Changeset: 0c7040d1d1ca
Author:    eosterlund
Date:      2018-08-22 13:06 +0200
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/0c7040d1d1ca

8208601: Introduce native oop barriers in C2 for OopHandle
Reviewed-by: neliasso, kvn

! src/hotspot/share/gc/shared/c2/barrierSetC2.cpp
! src/hotspot/share/gc/shared/c2/barrierSetC2.hpp
! src/hotspot/share/gc/z/c2/zBarrierSetC2.cpp
! src/hotspot/share/gc/z/c2/zBarrierSetC2.hpp
! src/hotspot/share/opto/graphKit.cpp
! src/hotspot/share/opto/graphKit.hpp
! src/hotspot/share/opto/library_call.cpp
! src/hotspot/share/opto/memnode.cpp
! src/hotspot/share/opto/phaseX.cpp
! src/hotspot/share/opto/subnode.cpp