8268019: C2: assert(no_dead_loop) failed: dead loop detected

[TheRealMDoerr]

Backport of JDK-8268019. Applies cleanly, but test needs modification. Some VM options from the original test are not available in 11u.

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Progress

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

Issue

• JDK-8268019: C2: assert(no_dead_loop) failed: dead loop detected

Reviewers

• Paul Hohensee (@phohensee - Reviewer)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.java.net/jdk11u-dev pull/342/head:pull/342
$ git checkout pull/342

Update a local copy of the PR:
$ git checkout pull/342
$ git pull https://git.openjdk.java.net/jdk11u-dev pull/342/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 342

View PR using the GUI difftool:
$ git pr show -t 342

Using diff file

Download this PR as a diff file:
https://git.openjdk.java.net/jdk11u-dev/pull/342.diff

[bridgekeeper]

👋 Welcome back mdoerr! 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 (20781de7)

[openjdk]

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

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

8268019: C2: assert(no_dead_loop) failed: dead loop detected

Reviewed-by: phh

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 1 new commit pushed to the master branch:

• 124f3ac: 8211227: Inconsistent TLS protocol version in debug output

Please see this link for an up-to-date comparison between the source branch of this pull request and the master branch.
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.

[TheRealMDoerr]

Thanks for the review!
/integrate

[openjdk]

Going to push as commit 87299f3.
Since your change was applied there have been 8 commits pushed to the master branch:

• 625690e: 8263303: C2 compilation fails with assert(found_sfpt) failed: no node in loop that's not input to safepoint
• 977ca31: 8273671: Backport of 8260616 misses one JNF header inclusion removal
• 59f0ea3: 8213301: Fix legal headers in jdk logging tests
• dc43ace: 8213328: Update test copyrights in test/java/util/zip and test/jdk/tools
• 1d09112: 8213306: Fix legal headers in test/java/nio
• 97d37b8: 8213305: Fix legal headers in test/java/math
• 77bbf1e: 8213296: Fix legal headers in test/jdk/java/net
• 124f3ac: 8211227: Inconsistent TLS protocol version in debug output

Your commit was automatically rebased without conflicts.

[openjdk]

@TheRealMDoerr Pushed as commit 87299f3.

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