8348599: [lworld] Unsafe.getValue() and Unsafe.putValue() have expensive lookup code

[fparain]

New version of Unsafe methods to read and write flat values.
More details in the CR.

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Progress

• Change must not contain extraneous whitespace

Issue

• JDK-8348599: [lworld] Unsafe.getValue() and Unsafe.putValue() have expensive lookup code (Bug - P3)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/valhalla.git pull/1336/head:pull/1336
$ git checkout pull/1336

Update a local copy of the PR:
$ git checkout pull/1336
$ git pull https://git.openjdk.org/valhalla.git pull/1336/head

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Checkout this PR locally:
$ git pr checkout 1336

View PR using the GUI difftool:
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Using diff file

Download this PR as a diff file:
https://git.openjdk.org/valhalla/pull/1336.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

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

[openjdk]

@fparain 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:

8348599: [lworld] Unsafe.getValue() and Unsafe.putValue() have expensive lookup code

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 1 new commit pushed to the lworld branch:

• 287a7b5: 8348428: [lworld] ProcessReaper stack size too small in debug build

Please see this link for an up-to-date comparison between the source branch of this pull request and the lworld branch.
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 lworld branch, type /integrate in a new comment.

[mlbridge]

Webrevs

• 00: Full (506443be)

[fparain]

/integrate

[openjdk]

Going to push as commit 4d7ba02.
Since your change was applied there has been 1 commit pushed to the lworld branch:

• 287a7b5: 8348428: [lworld] ProcessReaper stack size too small in debug build

Your commit was automatically rebased without conflicts.

[openjdk]

@fparain Pushed as commit 4d7ba02.

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