RFR: 8336685: Shenandoah: Remove experimental incremental update mode [v4]

[William Kemper]

On Thu, 25 Jul 2024 02:27:20 GMT, Y. Srinivas Ramakrishna <ysr at openjdk.org> wrote:

>> William Kemper 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 eight additional commits since the last revision:
>> 
>>  - Merge remote-tracking branch 'openjdk/master' into remove-incremental-update-mode
>>  - Simplify final mark now that incremental update mode is removed
>>  - Remove unintentional new line
>>  - Remove last vestiges of incremental update mode
>>  - Missed test, remove actual IU barrier flag
>>  - Remove missed iu_barrier usages for C1
>>  - Update test (all barriers can be enabled now for all modes)
>>  - WIP: Remove incremental update mode
>
> src/hotspot/share/gc/shenandoah/shenandoah_globals.hpp line 339:
> 
>> 337:   product(bool, ShenandoahIUBarrier, false, DIAGNOSTIC,                     \
>> 338:           "Turn on/off I-U barriers barriers in Shenandoah")                \
>> 339:                                                                             \
> 
> Not your change, but these doc comments should really say `"Enable blah-blah ..."` rather than `"Turn on/off blah-blah..."`.

Yes, next time we're in this file.

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PR Review Comment: https://git.openjdk.org/jdk/pull/20316#discussion_r1693259588