8310042: [Lilliput/JDK17] ZGC fixes and cleanups

[rkennke]

In ZGC, we don't need to change zLiveMap.inline.hpp and can revert to upstream state. In zBarrierSetC2.cpp we need to relax an assert.

Testing:

• hotspot_gc
• tier -XX:+UseZGC

---

Progress

• Change must be properly reviewed (1 review required, with at least 1 Reviewer)
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• Commit message must refer to an issue

Issue

• JDK-8310042: [Lilliput/JDK17] ZGC fixes and cleanups (Bug - P4)

Reviewers

• Aleksey Shipilev (@shipilev - Reviewer)

Reviewing

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Checkout this PR locally:
$ git fetch https://git.openjdk.org/lilliput-jdk17u.git pull/31/head:pull/31
$ git checkout pull/31

Update a local copy of the PR:
$ git checkout pull/31
$ git pull https://git.openjdk.org/lilliput-jdk17u.git pull/31/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 31

View PR using the GUI difftool:
$ git pr show -t 31

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Download this PR as a diff file:
https://git.openjdk.org/lilliput-jdk17u/pull/31.diff

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[bridgekeeper]

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

[mlbridge]

Webrevs

• 00: Full (b5e85f3a)

[shipilev]

Excellent, looks good!

[openjdk]

@rkennke 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:

8310042: [Lilliput/JDK17] ZGC fixes and cleanups

Reviewed-by: shade

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[rkennke]

/integrate

[openjdk]

Going to push as commit 9d6bbff.

[openjdk]

@rkennke Pushed as commit 9d6bbff.

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