8336702: C2 compilation fails with "all memory state should have been processed" assert

[satyenme]

Backporting JDK-8336702: C2 compilation fails with "all memory state should have been processed" assert. Change adjusts condition for converting a LongCountedLoop into a loop nest to handle edge case compilation failure outlined in original PR. Ran GHA Sanity Checks, local tier 1 and 2, and new test. Patch is clean.

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Progress

• JDK-8336702 needs maintainer approval
• Change must not contain extraneous whitespace
• Commit message must refer to an issue

Issue

• JDK-8336702: C2 compilation fails with "all memory state should have been processed" assert (Bug - P3 - Approved)

Reviewing

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[bridgekeeper]

👋 Welcome back ssubramaniam! 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]

@satyenme 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:

8336702: C2 compilation fails with "all memory state should have been processed" assert

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 21 new commits pushed to the master branch:

• 16e6e2a: 8350456: Test javax/crypto/CryptoPermissions/InconsistentEntries.java crashed: EXCEPTION_ACCESS_VIOLATION
• caec079: 8334457: Test javax/swing/JTabbedPane/bug4666224.java fail on macOS with because pressing the ‘C’ key does not switch the layout to WRAP_TAB_LAYOUT
• 58059ee: 8079786: [macosx] Test java/awt/Frame/DisposeParentGC/DisposeParentGC.java fails for Mac only
• ... and 18 more: https://git.openjdk.org/jdk21u-dev/compare/52a0b1143f8b6650a51c7b72891e3f148324d0e5...master

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 master branch, type /integrate in a new comment.

[openjdk]

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

[openjdk]

⚠️ @satyenme 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 (d767150d)

[satyenme]

/approval request for backport of JDK-8336702: C2 compilation fails with "all memory state should have been processed" assert

Motivation: Without this change the provide test code will fail to compile - this happens when converting a LongCountedLoop into a loop nest. With the fix, the intended behavior should be preserved, and the provided test code (and similar cases) will compile without issue.

Risk: Medium-Low. Ran GHA Sanity Checks, local Tier 1 and 2 and new test. Touches C2 code, but change has been in tip since October 2024. Patch is clean.

[openjdk]

@satyenme
8336702: The approval request has been created successfully.

[satyenme]

/integrate

[openjdk]

Going to push as commit e07ae66.
Since your change was applied there have been 26 commits pushed to the master branch:

• d2dfbd8: 8341178: TypeRawPtr::add_offset may be "miscompiled" due to UB
• 02a45b0: 8357253: Test test/jdk/sun/security/ssl/SSLSessionImpl/ResumeClientTLS12withSNI.java writes in src dir
• c730336: 8350830: Values converted incorrectly when reading TLS session tickets
• ... and 23 more: https://git.openjdk.org/jdk21u-dev/compare/52a0b1143f8b6650a51c7b72891e3f148324d0e5...master

Your commit was automatically rebased without conflicts.

[openjdk]

@satyenme Pushed as commit e07ae66.

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