RFR: 8350567: NMT: update VMATree::register_mapping to copy the existing tag of the region [v5]

[Afshin Zafari]

On Mon, 3 Mar 2025 14:28:07 GMT, Johan Sjölen <jsjolen at openjdk.org> wrote:

>> Afshin Zafari has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains six additional commits since the last revision:
>> 
>>  - Merge remote-tracking branch 'origin/master' into _8350567_copy_tag_in_place
>>  - out tag of the begin node (stA) is used for accounting.
>>  - new test name, removed unnecessary code
>>  - removed extra whitespace.
>>  - unit test added.
>>  - 8350567: NMT: update VMATree::register_mapping to copy the existing tag of the region
>
> Thanks!
> 
> This LGTM.

Thank you @jdksjolen and @tstuefe for your reviews.

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PR Comment: https://git.openjdk.org/jdk/pull/23771#issuecomment-2694798130