hg: jdk/sandbox: 8233401: Shenandoah: Refactor/cleanup Shenandoah load barrier code

[chris.hegarty at oracle.com]

Changeset: 83810b7d12e7
Author:    zgu
Date:      2019-11-06 09:50 -0500
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/83810b7d12e7

8233401: Shenandoah: Refactor/cleanup Shenandoah load barrier code
Reviewed-by: aph, shade, rkennke

! src/hotspot/cpu/aarch64/gc/shenandoah/shenandoahBarrierSetAssembler_aarch64.cpp
! src/hotspot/cpu/x86/gc/shenandoah/shenandoahBarrierSetAssembler_x86.cpp
! src/hotspot/share/gc/shenandoah/c1/shenandoahBarrierSetC1.cpp
! src/hotspot/share/gc/shenandoah/c2/shenandoahBarrierSetC2.cpp