git: openjdk/mobile: 8230565: ZGC: Redesign C2 load barrier to expand on the MachNode level

[duke]

Changeset: 42885307
Author:    Erik Österlund <eosterlund at openjdk.org>
Date:      2019-10-09 12:30:06 +0000
URL:       https://git.openjdk.java.net/mobile/commit/42885307

8230565: ZGC: Redesign C2 load barrier to expand on the MachNode level

Co-authored-by: Per Liden <per.liden at oracle.com>
Co-authored-by: Stefan Karlsson <stefan.karlsson at oracle.com>
Co-authored-by: Nils Eliasson <nils.eliasson at oracle.com>
Reviewed-by: pliden, stefank, neliasso

! src/hotspot/cpu/aarch64/aarch64.ad
! src/hotspot/cpu/aarch64/gc/z/zBarrierSetAssembler_aarch64.cpp
! src/hotspot/cpu/aarch64/gc/z/zBarrierSetAssembler_aarch64.hpp
! src/hotspot/cpu/aarch64/gc/z/z_aarch64.ad
! src/hotspot/cpu/aarch64/macroAssembler_aarch64.cpp
! src/hotspot/cpu/aarch64/macroAssembler_aarch64.hpp
! src/hotspot/cpu/aarch64/register_aarch64.hpp
! src/hotspot/cpu/x86/gc/z/zArguments_x86.cpp
! src/hotspot/cpu/x86/gc/z/zBarrierSetAssembler_x86.cpp
! src/hotspot/cpu/x86/gc/z/zBarrierSetAssembler_x86.hpp
! src/hotspot/cpu/x86/gc/z/z_x86_64.ad
! src/hotspot/cpu/x86/x86.ad
! src/hotspot/cpu/x86/x86_64.ad
! src/hotspot/share/adlc/formssel.cpp
! src/hotspot/share/compiler/compilerDirectives.hpp
! src/hotspot/share/gc/shared/c2/barrierSetC2.hpp
! src/hotspot/share/gc/shenandoah/c2/shenandoahBarrierSetC2.hpp
! src/hotspot/share/gc/z/c2/zBarrierSetC2.cpp
! src/hotspot/share/gc/z/c2/zBarrierSetC2.hpp
! src/hotspot/share/gc/z/zBarrierSetAssembler.hpp
! src/hotspot/share/opto/classes.cpp
! src/hotspot/share/opto/classes.hpp
! src/hotspot/share/opto/compile.cpp
! src/hotspot/share/opto/compile.hpp
! src/hotspot/share/opto/loopnode.cpp
! src/hotspot/share/opto/loopopts.cpp
! src/hotspot/share/opto/machnode.hpp
! src/hotspot/share/opto/matcher.cpp
! src/hotspot/share/opto/memnode.cpp
! src/hotspot/share/opto/memnode.hpp
! src/hotspot/share/opto/node.cpp
! src/hotspot/share/opto/node.hpp
! src/hotspot/share/opto/output.cpp
! src/hotspot/share/opto/output.hpp
! src/hotspot/share/opto/phaseX.cpp