8286300: Port JEP 425 to S390X

[offamitkumar]

This is back port for s390x loom and JEP 491 port.

There was only one merge conflict in frame_s390.hpp file other than that it was clean.

Ran tier1 test with fastdebug-vm and results are clean.

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Progress

• Change must not contain extraneous whitespace
• JDK-8335163 needs maintainer approval
• Commit message must refer to an issue
• JDK-8286300 needs maintainer approval
• JDK-8377034 needs maintainer approval
• JDK-8380035 needs maintainer approval

Issues

• JDK-8286300: Port JEP 425 to S390X (Enhancement - P4 - Approved)
• JDK-8377034: Enable full JSR166TestCase.java test for s390x (Bug - P4 - Approved)
• JDK-8380035: compiler/intrinsics/TestReturnOopSetForJFRWriteCheckpoint.java crashes on s390x (Bug - P4 - Approved)
• JDK-8335163: [s390x] test failure - PrintClasses.java (Bug - P3 - Approved)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk27u.git pull/16/head:pull/16
$ git checkout pull/16

Update a local copy of the PR:
$ git checkout pull/16
$ git pull https://git.openjdk.org/jdk27u.git pull/16/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 16

View PR using the GUI difftool:
$ git pr show -t 16

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk27u/pull/16.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back amitkumar! 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]

@offamitkumar 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:

8286300: Port JEP 425 to S390X
8377034: Enable full JSR166TestCase.java test for s390x
8380035: compiler/intrinsics/TestReturnOopSetForJFRWriteCheckpoint.java crashes on s390x
8335163: [s390x] test failure - PrintClasses.java

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 40 new commits pushed to the master branch:

• f1ae5df: Merge
• 342d47f: 8382536: C2: sharpen_type_after_if: assert(val->find_edge(con) > 0) failed: mismatch
• 947dac4: 8378719: CompiledDirectCall::set_to_interpreted() fails with guarantee(chk == -1 || chk == 0) failed: Field too big for insn
• ... and 37 more: https://git.openjdk.org/jdk27u/compare/eecc16f7bc5be88985dfc2b04dab81067a62b4d6...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 issues from the original commit.

[openjdk]

⚠️ @offamitkumar 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

• 01: Full - Incremental (fddfb909)
• 00: Full (4ffc0822)

[offamitkumar]

/approval request Loom are JEP 491 are ported on JDK 28 for s390x. We are pushing the back port for JDK 27 releases as well as JDK 28 will be released by next year. Only s390x related code is affected and other architectures are unaffected. tier1 tests with fastdebug-vm are tested on s390x machine and no new failure appeared.

[openjdk]

@offamitkumar
8286300: The approval request has been created successfully.
8377034: The approval request has been created successfully.
8380035: The approval request has been created successfully.
8335163: The approval request has been created successfully.

[offamitkumar]

/integrate

[openjdk]

Going to push as commit d274f4e.
Since your change was applied there have been 40 commits pushed to the master branch:

• f1ae5df: Merge
• 342d47f: 8382536: C2: sharpen_type_after_if: assert(val->find_edge(con) > 0) failed: mismatch
• 947dac4: 8378719: CompiledDirectCall::set_to_interpreted() fails with guarantee(chk == -1 || chk == 0) failed: Field too big for insn
• ... and 37 more: https://git.openjdk.org/jdk27u/compare/eecc16f7bc5be88985dfc2b04dab81067a62b4d6...master

Your commit was automatically rebased without conflicts.

[openjdk]

@offamitkumar Pushed as commit d274f4e.

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