8329545: [s390x] Fix garbage value being passed in Argument Register

[sid8606]

Hi all,

This pull request contains a backport of commit e0fd6c4c from the openjdk/jdk repository.

The commit being backported was authored by Sidraya Jayagond on 10 Apr 2024 and was reviewed by Amit Kumar and Martin Doerr.

Thanks!

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8329545 needs maintainer approval

Issue

• JDK-8329545: [s390x] Fix garbage value being passed in Argument Register (Bug - P2 - Approved)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk21u-dev.git pull/492/head:pull/492
$ git checkout pull/492

Update a local copy of the PR:
$ git checkout pull/492
$ git pull https://git.openjdk.org/jdk21u-dev.git pull/492/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 492

View PR using the GUI difftool:
$ git pr show -t 492

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk21u-dev/pull/492.diff

Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back sjayagond! 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]

@sid8606 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:

8329545: [s390x] Fix garbage value being passed in Argument Register

You can use pull request commands such as /summary, /contributor and /issue to adjust it as needed.

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[openjdk]

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

[openjdk]

⚠️ @sid8606 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 (2bf165b0)

[sid8606]

/approval request Fix sign extension on 4 byte load from argument stack slot to GPR, without this change the code is throwing segmentation fault while doing some operations.

[openjdk]

@sid8606
8329545: The approval request has been created successfully.

[sid8606]

I have tested this backport patch for jdk21u-dev for release and fastdebug build. I do not see failures related to this patch.
/integrate

[openjdk]

@sid8606
Your change (at version 2bf165b) is now ready to be sponsored by a Committer.

[sid8606]

@TheRealMDoerr Could you please sponsor this PR?

[TheRealMDoerr]

/sponsor

[openjdk]

Going to push as commit 807f21d.

[openjdk]

@TheRealMDoerr @sid8606 Pushed as commit 807f21d.

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