Integrated: 8320888: Shenandoah: Enable ShenandoahVerifyOptoBarriers in debug builds

[Aleksey Shipilev]

On Tue, 28 Nov 2023 12:40:41 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Flag cleanup. Current barrier verification code is opt-in, and it is selected for a few tests. For extra safety, we want to have it enabled by default in debug builds. This also simplifies test configurations.
> 
> Additional testing:
>  - [x] Linux x86_64 server fastdebug, `hotspot_gc_shenandoah`
>  - [x] Linux AArch64 server fastdebug, `hotspot_gc_shenandoah`
>  - [x] Linux x86_64 server fastdebug, `tier{1,2,3,4}` with `-XX:+UseShenandoahGC`
>  - [x] Linux AArch64 server fastdebug, `tier{1,2,3,4}` with `-XX:+UseShenandoahGC`

This pull request has now been integrated.

Changeset: c8643176
Author:    Aleksey Shipilev <shade at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/c86431767e6802317dc2be6221a5d0990b976ddc
Stats:     39 lines in 4 files changed: 0 ins; 37 del; 2 mod

8320888: Shenandoah: Enable ShenandoahVerifyOptoBarriers in debug builds

Reviewed-by: wkemper, kdnilsen, rkennke

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PR: https://git.openjdk.org/jdk/pull/16849