hg: jdk/submit: 8242029: AArch64: skip G1 array copy pre-barrier if marking not active

[nick.gasson at arm.com]

Changeset: e1c3f8f51d46
Author:    ngasson
Date:      2020-04-07 14:11 +0800
URL:       https://hg.openjdk.java.net/jdk/submit/rev/e1c3f8f51d46

8242029: AArch64: skip G1 array copy pre-barrier if marking not active
Reviewed-by: duke

! src/hotspot/cpu/aarch64/gc/g1/g1BarrierSetAssembler_aarch64.cpp