8267212: test/jdk/java/util/Collections/FindSubList.java intermittent crash with "no reachable node should have no use"

[huishi-hs]

… crash with "no reachable node should have no use"

Please help reivew this fix.

StrIntrinsicNode::Ideal uses Node::set_req to replace memory input, old memory input might have 0 use, but not added into PhaseGVN worklist. Using set_req_X to ensure add 0 out old memory input node into PhaseGVN worklist.

Find other two similar problemtic code in LoadNode::Ideal.

Tier1/2/3 pass with release/fastdebug build.
test/jdk/java/util/Collections/FindSubList.java doesn't fail in 100 runs (before fix 2/3 failure in 10 runs).

---

Progress

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Issue

• JDK-8267212: test/jdk/java/util/Collections/FindSubList.java intermittent crash with "no reachable node should have no use"

Reviewers

• Roland Westrelin (@rwestrel - Reviewer)
• Tobias Hartmann (@TobiHartmann - Reviewer)

Reviewing

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[bridgekeeper]

👋 Welcome back hshi! 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]

@huishi-hs The following label will be automatically applied to this pull request:

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[mlbridge]

Webrevs

• 00: Full (ef8a859c)

[huishi-hs]

pre-submit tests have been passed https://github.com/huishi-hs/jdk/actions/runs/849445331

checking here still not completed. ignore.

[rwestrel]

Looks good to me.

[openjdk]

@huishi-hs 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:

8267212: test/jdk/java/util/Collections/FindSubList.java intermittent crash with "no reachable node should have no use"

Reviewed-by: roland, thartmann

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 23 new commits pushed to the master branch:

• 894547d: 8266897: com/sun/net/httpserver/FilterTest.java fails intermittently with AssertionError
• da7c846: 8264408: test_oopStorage no longer needs to disable some tests on WIN32
• f6c2891: 8267229: Split runtime/Metaspace/elastic test configurations for better scalability
• b60975d: 8267237: ARM32: bad AD file in matcher.cpp after 8266810
• 905b41a: 8265711: C1: Intrinsify Class.getModifier method
• 554caf3: 8251392: Consolidate Metaspace Statistics
• 3e97b07: 8267116: Lanai: Incorrect AlphaComposite for VolatileImage graphics
• cd1c17c: 8266404: Fatal error report generated with -XX:+CrashOnOutOfMemoryError should not contain suggestion to submit a bug report
• 2effdd1: 8267112: JVMCI compiler modules should be kept upgradable
• da4dfde: 8264777: Overload optimized FileInputStream::readAllBytes
• ... and 13 more: https://git.openjdk.java.net/jdk/compare/f4227879b0504bc4656bd84153b13b04c007aa66...master

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.

As you do not have Committer status in this project an existing Committer must agree to sponsor your change. Possible candidates are the reviewers of this PR (@rwestrel, @TobiHartmann) but any other Committer may sponsor as well.

➡️ To flag this PR as ready for integration with the above commit message, type /integrate in a new comment. (Afterwards, your sponsor types /sponsor in a new comment to perform the integration).

[TobiHartmann]

Looks good to me too.

[huishi-hs]

Thanks @TobiHartmann @rwestrel !

[huishi-hs]

/integrate

[openjdk]

@huishi-hs
Your change (at version ef8a859) is now ready to be sponsored by a Committer.

[DamonFool]

/sponsor

[openjdk]

@DamonFool @huishi-hs Since your change was applied there have been 32 commits pushed to the master branch:

• bdbe23b: 8265462: Handle multiple slots in the NSS Internal Module from SunPKCS11's Secmod
• 10236e7: 8263242: serviceability/sa/ClhsdbFindPC.java cannot find MaxJNILocalCapacity with ASLR
• e6705c0: 8266949: Check possibility to disable OperationTimedOut on Unix
• b92c5a4: 8265292: [macos_aarch64] java/foreign/TestDowncall.java crashes with SIGBUS
• fadf580: 8262952: [macos_aarch64] os::commit_memory failure
• f8f40ab: 8230486: G1BarrierSetAssembler::g1_write_barrier_post unnecessarily pushes/pops new_val
• 9d168e2: 8266973: Migrate to ClassHierarchyIterator when enumerating subclasses
• 02507bc: 8267166: Remove test file vmTestbase/vm/mlvm/tools/LoadClass.java
• ce88b33: 8266615: C2 incorrectly folds subtype checks involving an interface array
• 894547d: 8266897: com/sun/net/httpserver/FilterTest.java fails intermittently with AssertionError
• ... and 22 more: https://git.openjdk.java.net/jdk/compare/f4227879b0504bc4656bd84153b13b04c007aa66...master

Your commit was automatically rebased without conflicts.

Pushed as commit 324defe.

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