8258946: Fix optimization-unstable code involving signed integer overflow

[GoeLin]

I backport this for parity with 11.0.17-oracle.

Clean excpet for Copyright. Will mark as /clean.

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue

Issue

• JDK-8258946: Fix optimization-unstable code involving signed integer overflow

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk11u-dev pull/1272/head:pull/1272
$ git checkout pull/1272

Update a local copy of the PR:
$ git checkout pull/1272
$ git pull https://git.openjdk.org/jdk11u-dev pull/1272/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 1272

View PR using the GUI difftool:
$ git pr show -t 1272

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk11u-dev/pull/1272.diff

[bridgekeeper]

👋 Welcome back goetz! 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 (6d343241)

[GoeLin]

/clean

[openjdk]

@GoeLin This backport pull request is now marked as clean

[openjdk]

@GoeLin This change now passes all automated pre-integration checks.

After integration, the commit message for the final commit will be:

8258946: Fix optimization-unstable code involving signed integer overflow

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.

[GoeLin]

/integrate

[openjdk]

Going to push as commit c61acb5.
Since your change was applied there have been 6 commits pushed to the master branch:

• 5d20cb6: 8210960: Allow --with-boot-jdk-jvmargs to work during configure
• f00776b: 8285728: Alpine Linux build fails with busybox tar
• a625058: 8239379: ProblemList serviceability/sa/sadebugd/DebugdConnectTest.java on OSX
• 9de7c4c: 8282860: Write a regression test for JDK-4164779
• 0174134: 8284367: JQuery UI upgrade from 1.12.1 to 1.13.1
• 37ca256: 8285097: Duplicate XML keys in XPATHErrorResources.java and XSLTErrorResources.java

Your commit was automatically rebased without conflicts.

[openjdk]

@GoeLin Pushed as commit c61acb5.

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