8326638: Crash in PhaseIdealLoop::remix_address_expressions due to unexpected Region instead of Loop

[TobiHartmann]

Hi all,

This pull request contains a backport of commit 9f0e7da6 from the openjdk/jdk repository.

The commit being backported was authored by Tobias Hartmann on 27 Feb 2024 and was reviewed by Christian Hagedorn and Vladimir Kozlov.

Thanks!

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8326638 needs maintainer approval

Issue

• JDK-8326638: Crash in PhaseIdealLoop::remix_address_expressions due to unexpected Region instead of Loop (Bug - P3 - Approved)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk22u.git pull/71/head:pull/71
$ git checkout pull/71

Update a local copy of the PR:
$ git checkout pull/71
$ git pull https://git.openjdk.org/jdk22u.git pull/71/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 71

View PR using the GUI difftool:
$ git pr show -t 71

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk22u/pull/71.diff

Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back thartmann! 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]

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

[mlbridge]

Webrevs

• 00: Full (4a23689b)

[openjdk]

@TobiHartmann 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:

8326638: Crash in PhaseIdealLoop::remix_address_expressions due to unexpected Region instead of Loop

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 no new commits pushed to the master branch. If another commit should be pushed before you perform the /integrate command, your PR will be automatically rebased. If you prefer to avoid any potential 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.

[TobiHartmann]

/integrate

[openjdk]

Going to push as commit 1a2b122.
Since your change was applied there have been 2 commits pushed to the master branch:

• aeb85fd: 8325326: [PPC64] Don't relocate in case of allocation failure
• e3ae81e: 8326101: [PPC64] Need to bailout cleanly if creation of stubs fails when code cache is out of space

Your commit was automatically rebased without conflicts.

[openjdk]

@TobiHartmann Pushed as commit 1a2b122.

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