RFR: 8377658: G1: Cleanup g1ConcurrentMark.cpp for stricter warning flags [v2]

[Leo Korinth]

On Fri, 13 Feb 2026 11:10:09 GMT, Stefan Karlsson <stefank at openjdk.org> wrote:

>> Do you think I should open an enhancement for the barrierSetConfig.inline.hpp issue?
>
> Even though the goal is to make a G1 cpp file compile cleanly with this warning, you need to make changes to header files for various subsystems of HotSpot. I think that there should be separate PRs for the various sub-systems, or the PR needs to be named in a way that those sub-system maintainers notice them. There should also be a clear explanation for each non-obvious change.

I will move this to an enhancement of its own: https://bugs.openjdk.org/browse/JDK-8377995

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PR Review Comment: https://git.openjdk.org/jdk/pull/29701#discussion_r2812459071