8370774: Merge ModRefBarrierSet into CardTableBarrierSet

[albertnetymk]

Merge a class into its sole subclass.

Many files are changed in this PR, and they can be largely divided into two groups, moving content of ModRefBarrierSet into CardTableBarrierSet (src/hotspot/share/gc/) and platform specific moving content of ModRefBarrierSetAssembler into CardTableBarrierSetAssembler (src/hotspot/cpu/).

Test: tier1-5 for x64 and aarch64; GHA

---

Progress

• Change must be properly reviewed (1 review required, with at least 1 Reviewer)
• Change must not contain extraneous whitespace
• Commit message must refer to an issue

Issue

• JDK-8370774: Merge ModRefBarrierSet into CardTableBarrierSet (Enhancement - P4)

Reviewers

• Thomas Schatzl (@tschatzl - Reviewer)
• Ivan Walulya (@walulyai - Reviewer)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk.git pull/28013/head:pull/28013
$ git checkout pull/28013

Update a local copy of the PR:
$ git checkout pull/28013
$ git pull https://git.openjdk.org/jdk.git pull/28013/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 28013

View PR using the GUI difftool:
$ git pr show -t 28013

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk/pull/28013.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back ayang! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

@albertnetymk This change now passes all automated pre-integration checks.

ℹ️ This project also has non-automated pre-integration requirements. Please see the file CONTRIBUTING.md for details.

After integration, the commit message for the final commit will be:

8370774: Merge ModRefBarrierSet into CardTableBarrierSet

Reviewed-by: tschatzl, iwalulya

You can use pull request commands such as /summary, /contributor and /issue to adjust it as needed.

At the time when this comment was updated there had been 108 new commits pushed to the master branch:

• 02a7217: 8366364: Return enabled signature schemes with SSLConfiguration#getSSLParameters() call
• 18e8873: 8369111: G1: Determining concurrent start uses inconsistent predicates
• 20ff33c: 8370260: Test jdk/jfr/event/oldobject/TestEmergencyDumpAtOOM.java timed out
• ... and 105 more: https://git.openjdk.org/jdk/compare/d5ce66698d2f15c5f8316110a6118a10baa4013d...master

As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid this automatic rebasing, please check the documentation for the /integrate command for further details.

➡️ To integrate this PR with the above commit message to the master branch, type /integrate in a new comment.

[openjdk]

@albertnetymk The following label will be automatically applied to this pull request:

• hotspot

When this pull request is ready to be reviewed, an "RFR" email will be sent to the corresponding mailing list. If you would like to change these labels, use the /label pull request command.

[mlbridge]

Webrevs

• 00: Full (9e325782)

[albertnetymk]

/cc hotspot-gc

[openjdk]

@albertnetymk
The hotspot-gc label was successfully added.

[tschatzl]

Seems good.

[walulyai]

LGTM!