RFR: 8365017: The SegmentBulkOperations::copy method can be improved using overlaps [v2]

Fri Aug 8 10:02:16 UTC 2025

On Fri, 8 Aug 2025 09:36:14 GMT, Per Minborg <pminborg at openjdk.org> wrote:

>> This PR proposes to use overlapping memory areas in `SegmentBulkOperations::copy`, similar to what is proposed for `SegmentBulkOperations::fill` in https://github.com/openjdk/jdk/pull/25383.
>> 
>> This PR passes `tier1`, `tier2`, and `tier3`testing on multiple platforms.
>
> Per Minborg has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Optimize copy for certain lengths

Great win!

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

PR Comment: https://git.openjdk.org/jdk/pull/26672#issuecomment-3167295128