8256813: Simplify WeakProcessor counting of OopStorage entries

[kimbarrett]

Please review this change to WeakProcessor's counting of weak and dead
entries. After JDK-8212879 we no longer need different closure classes to
deal with the serial and oopstorage cases, since the serial case no longer
exists. We can collapse that down to one closure class that is tailored for
the remaining uses.

Also deleted a stale comment left over from JDK-8212879.

Testing:
mach5 tier1
Locally (linux-x64) hotspot:tier1 with Serial and Parallel GCs.

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• Change must be properly reviewed

Issue

• JDK-8256813: Simplify WeakProcessor counting of OopStorage entries

Reviewers

• Stefan Johansson (@kstefanj - Reviewer) ⚠️ Review applies to d6f1cee
• Stefan Karlsson (@stefank - Reviewer) ⚠️ Review applies to e8aa8ae

Download

$ git fetch https://git.openjdk.java.net/jdk pull/1362/head:pull/1362
$ git checkout pull/1362

[bridgekeeper]

👋 Welcome back kbarrett! 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]

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

• hotspot-gc

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[mlbridge]

Webrevs

• 02: Full - Incremental (460d4cd)
• 01: Full - Incremental (d6f1cee)
• 00: Full (e8aa8ae)

[kstefanj]

Nice cleanup, but I have one question around the accounting below.

[stefank]

Looks good, but would like to get StefanJ's question resolved.

[openjdk]

@kimbarrett 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:

8256813: Simplify WeakProcessor counting of OopStorage entries

Reviewed-by: sjohanss, stefank

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At the time when this comment was updated there had been 1 new commit pushed to the master branch:

• 67a9590: 8256614: AArch64: Add SVE backend implementation for integer min/max

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[kstefanj]

Looks good!

[kimbarrett]

Thanks @kstefanj and @stefank for reviews.

[kimbarrett]

/integrate

[openjdk]

@kimbarrett Since your change was applied there has been 1 commit pushed to the master branch:

• 67a9590: 8256614: AArch64: Add SVE backend implementation for integer min/max

Your commit was automatically rebased without conflicts.

Pushed as commit cc96b0a.

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