git: openjdk/jdk21u: master: 8315082: [REDO] Generational ZGC: Tests crash with assert(index == 0 || is_power_of_2(index))

[Aleksey Shipilev]

Changeset: f01df290
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2023-11-27 11:35:28 +0000
URL:       https://git.openjdk.org/jdk21u/commit/f01df290a96510d400a48c063926ff61c10a567a

8315082: [REDO] Generational ZGC: Tests crash with assert(index == 0 || is_power_of_2(index))

Backport-of: ceff47b462ccbaff5cc16111dc65463a6d8d3d8d

! src/hotspot/share/gc/shared/c2/barrierSetC2.cpp
! src/hotspot/share/opto/arraycopynode.cpp
! src/hotspot/share/opto/graphKit.cpp
! src/hotspot/share/opto/library_call.cpp
+ test/hotspot/jtreg/compiler/arraycopy/TestCloneArrayWithDifferentLengthConstness.java
+ test/hotspot/jtreg/compiler/gcbarriers/TestArrayCopyWithLargeObjectAlignment.java