RFR: 8346280: C2: implement late barrier elision for G1 [v2]

Wed Feb 5 12:42:15 UTC 2025

On Fri, 31 Jan 2025 14:06:16 GMT, Roberto Castañeda Lozano <rcastanedalo at openjdk.org> wrote:

> > One question about elision for atomics.
> > Otherwise it seems good afaict, although a large part was checking that the code movement is/was correct.
> 
> Thanks for reviewing Thomas! Please let me know whether you want me to extend this changeset to elide barriers on atomic operations (happy to do so).

@tschatzl I did extend the changeset now to also elide barriers on atomic operations, as discussed offline. Please have a look again.

@offamitkumar @TheRealMDoerr @RealFYang @snazarkin you might want to re-test the changeset on your respective platforms. Thanks!

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PR Comment: https://git.openjdk.org/jdk/pull/23235#issuecomment-2636669816