8281168: Micro-optimize VarForm.getMemberName for interpreter

[shipilev]

Clean backport to improve interpreter performance.

Additional testing:

• Linux x86_64 fastdebug tier1

---

Progress

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

Issue

• JDK-8281168: Micro-optimize VarForm.getMemberName for interpreter

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.java.net/jdk18u pull/40/head:pull/40
$ git checkout pull/40

Update a local copy of the PR:
$ git checkout pull/40
$ git pull https://git.openjdk.java.net/jdk18u pull/40/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 40

View PR using the GUI difftool:
$ git pr show -t 40

Using diff file

Download this PR as a diff file:
https://git.openjdk.java.net/jdk18u/pull/40.diff

[bridgekeeper]

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[openjdk]

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

[openjdk]

@shipilev 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:

8281168: Micro-optimize VarForm.getMemberName for interpreter

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[mlbridge]

Webrevs

• 01: Full - Incremental (f999c07d)
• 00: Full (73075ca8)

[shipilev]

Got the push approval.
/integrate

[openjdk]

Going to push as commit c66544f.
Since your change was applied there has been 1 commit pushed to the master branch:

• 6b5706a: 8279668: x86: AVX2 versions of vpxor should be asserted

Your commit was automatically rebased without conflicts.

[openjdk]

@shipilev Pushed as commit c66544f.

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