[jdk20u] RFR: 8306734: Shenandoah: Missing barriers on deoptimization path

[Aleksey Shipilev]

On Wed, 26 Apr 2023 10:54:11 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Clean backport to fix the recent regression introduced in 20u.
> 
> Testing:
>  - [x] Reproducer from the bug, fails 1/2 times without the fix, passes with a fix
>  - [x] Linux x86_64 fastdebug `hotspot_gc_shenandoah`
>  - [x] Linux AArch64 fastdebug `hotspot_gc_shenandoah`

Push approval is here.

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PR Comment: https://git.openjdk.org/jdk20u/pull/64#issuecomment-1529455833