8332368: ubsan aarch64: immediate_aarch64.cpp:298:31: runtime error: shift exponent 32 is too large for 32-bit type 'int'

[sendaoYan]

Hi all,

This pull request contains a backport of commit d783a940 from the openjdk/jdk repository.

The commit being backported was authored by Boris Ulasevich on 22 Apr 2025 and was reviewed by Andrew Dinn.

Thanks!

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8332368 needs maintainer approval

Warning

 ⚠️ Found leading lowercase letter in issue title for 8332368: ubsan aarch64: immediate_aarch64.cpp:298:31: runtime error: shift exponent 32 is too large for 32-bit type 'int'

Issue

• JDK-8332368: ubsan aarch64: immediate_aarch64.cpp:298:31: runtime error: shift exponent 32 is too large for 32-bit type 'int' (Bug - P4)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk24u.git pull/209/head:pull/209
$ git checkout pull/209

Update a local copy of the PR:
$ git checkout pull/209
$ git pull https://git.openjdk.org/jdk24u.git pull/209/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 209

View PR using the GUI difftool:
$ git pr show -t 209

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk24u/pull/209.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back syan! 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 change is not yet ready to be integrated.
See the Progress checklist in the description for automated requirements.

[openjdk]

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

[openjdk]

⚠️ @sendaoYan 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 (a3e6cd0e)

[bridgekeeper]

@sendaoYan This pull request has been inactive for more than 4 weeks and will be automatically closed if another 4 weeks passes without any activity. To avoid this, simply issue a /touch or /keepalive command to the pull request. Feel free to ask for assistance if you need help with progressing this pull request towards integration!

[sendaoYan]

wait

[bridgekeeper]

@sendaoYan This pull request has been inactive for more than 4 weeks and will be automatically closed if another 4 weeks passes without any activity. To avoid this, simply issue a /touch or /keepalive command to the pull request. Feel free to ask for assistance if you need help with progressing this pull request towards integration!

[sendaoYan]

I think jdk24 is not needed to backport.