git: openjdk/jdk: 8270098: ZGC: ZBarrierSetC2::clone_at_expansion fails with "Guard against surprises" assert

[Tobias Hartmann]

Changeset: 2384e128
Author:    Tobias Hartmann <thartmann at openjdk.org>
Date:      2021-08-10 05:37:55 +0000
URL:       https://git.openjdk.java.net/jdk/commit/2384e128886ce8d60cb76e6cdae3a76ccebb9e89

8270098: ZGC: ZBarrierSetC2::clone_at_expansion fails with "Guard against surprises" assert

Reviewed-by: neliasso, kvn

! src/hotspot/share/gc/z/c2/zBarrierSetC2.cpp
! test/hotspot/jtreg/compiler/arraycopy/TestObjectArrayClone.java