[jdk21u-dev] RFR: 8325372: Shenandoah: SIGSEGV crash in unnecessary_acquire due to LoadStore split through phi [v3]

[Aleksey Shipilev]

On Tue, 12 Mar 2024 22:02:34 GMT, Dan Lutker <dlutker at openjdk.org> wrote:

>> Backporting to 21 which also has the same issue.
>> 
>> Ran tier1, 2, 3, 4 on linux aarch64 with -XX:+UseShenandoahGC as well as jcstress quick.
>
> Dan Lutker has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains one commit:
> 
>   Backport 5d414da50459b7a1e6f0f537ff3b318854b2c427

While the patch is still relatively new in mainline, I think this one is good to have earlier in 21u-dev. This is going to be additionally tested by our 21u pipelines, in addition to mainline testing.

There is a GHA failure in x86_32 StringRepeat test, but it does not look relevant.

-------------

Marked as reviewed by shade (Reviewer).

PR Review: https://git.openjdk.org/jdk21u-dev/pull/306#pullrequestreview-1933668654