8302907: [PPC64] Use more constexpr in class Register

[TheRealMDoerr]

Clean backport of JDK-8302907.

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8302907 needs maintainer approval

Issue

• JDK-8302907: [PPC64] Use more constexpr in class Register (Enhancement - P4 - Approved)

Reviewing

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Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk17u-dev.git pull/2461/head:pull/2461
$ git checkout pull/2461

Update a local copy of the PR:
$ git checkout pull/2461
$ git pull https://git.openjdk.org/jdk17u-dev.git pull/2461/head

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Checkout this PR locally:
$ git pr checkout 2461

View PR using the GUI difftool:
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https://git.openjdk.org/jdk17u-dev/pull/2461.diff

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[bridgekeeper]

👋 Welcome back mdoerr! 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]

@TheRealMDoerr 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:

8302907: [PPC64] Use more constexpr in class Register

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 5 new commits pushed to the master branch:

• e2791f3: 8286490: JvmtiEventControllerPrivate::set_event_callbacks CLEARING_MASK computation is incorrect
• f789e38: 8307423: [s390x] Represent Registers as values
• bf4b15c: 8321925: sun/security/mscapi/KeytoolChangeAlias.java fails with "Alias <246810> does not exist"
• ce1fb02: 8311964: Some jtreg tests failing on x86 with error 'unrecognized VM options' (C2 flags)
• 606c542: 8326201: [S390] Need to bailout cleanly if creation of stubs fails when code cache is out of space

Please see this link for an up-to-date comparison between the source branch of this pull request and the master branch.
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➡️ To integrate this PR with the above commit message to the master branch, type /integrate in a new comment.

[openjdk]

This backport pull request has now been updated with issue from the original commit.

[openjdk]

⚠️ @TheRealMDoerr This change is now ready for you to apply for maintainer approval. This can be done directly in each associated issue or by using the /approval command.

[mlbridge]

Webrevs

• 00: Full (e2b29905)

[TheRealMDoerr]

GHA failure is unrelated. This PR only touches one PPC64 file.

[TheRealMDoerr]

/approval request This is a follow-up change for JDK-8297445 which is already backported. This one is needed for some later changes. We should have it in order to be prepared for future backports. It's trivial and applies cleanly. SAP's testing has passed.

[openjdk]

@TheRealMDoerr
8302907: The approval request has been created successfully.

[TheRealMDoerr]

/integrate

[openjdk]

Going to push as commit d2b9c01.
Since your change was applied there have been 7 commits pushed to the master branch:

• e0dba38: 8280835: jdk/javadoc/tool/CheckManPageOptions.java depends on source hierarchy
• 8f0fa10: 8267796: vmTestbase/nsk/jvmti/scenarios/hotswap/HS201/hs201t002/TestDescription.java fails with NoClassDefFoundError
• e2791f3: 8286490: JvmtiEventControllerPrivate::set_event_callbacks CLEARING_MASK computation is incorrect
• f789e38: 8307423: [s390x] Represent Registers as values
• bf4b15c: 8321925: sun/security/mscapi/KeytoolChangeAlias.java fails with "Alias <246810> does not exist"
• ce1fb02: 8311964: Some jtreg tests failing on x86 with error 'unrecognized VM options' (C2 flags)
• 606c542: 8326201: [S390] Need to bailout cleanly if creation of stubs fails when code cache is out of space

Your commit was automatically rebased without conflicts.

[openjdk]

@TheRealMDoerr Pushed as commit d2b9c01.

💡 You may see a message that your pull request was closed with unmerged commits. This can be safely ignored.