8265132 : C2 compilation fails with assert "missing precedence edge"

[jamsheedcm]

This is PR for JDK17.
Original PR => openjdk/jdk#4200

---

Progress

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

Issue

• JDK-8265132: C2 compilation fails with assert "missing precedence edge"

Reviewers

• Igor Veresov (@veresov - Reviewer)
• Vladimir Kozlov (@vnkozlov - Reviewer)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.java.net/jdk17 pull/191/head:pull/191
$ git checkout pull/191

Update a local copy of the PR:
$ git checkout pull/191
$ git pull https://git.openjdk.java.net/jdk17 pull/191/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 191

View PR using the GUI difftool:
$ git pr show -t 191

Using diff file

Download this PR as a diff file:
https://git.openjdk.java.net/jdk17/pull/191.diff

[bridgekeeper]

👋 Welcome back jcm! 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]

@jamsheedcm The following label will be automatically applied to this pull request:

• hotspot-compiler

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[mlbridge]

Webrevs

• 00: Full (a3ac22fd)

[openjdk]

@jamsheedcm 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:

8265132: C2 compilation fails with assert "missing precedence edge"

Reviewed-by: iveresov, kvn

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 10 new commits pushed to the master branch:

• e377397: 8268566: java/foreign/TestResourceScope.java timed out
• 6c76e77: 8260684: vmTestbase/gc/gctests/PhantomReference/phantom002/TestDescription.java timed out
• 4bbf11d: 8269580: assert(is_valid()) failed: invalid register (-1)
• 54dd510: 8269704: Typo in j.t.Normalizer.normalize()
• a8385fe: 8269354: javac crashes when processing parenthesized pattern in instanceof
• c16d1fc: 8269285: Crash/miscompile in CallGenerator::for_method_handle_inline after JDK-8191998
• ad27d9b: 8269088: C2 fails with assert(!n->is_Store() && !n->is_LoadStore()) failed: no node with a side effect
• c67a7b0: 8269230: C2: main loop in micro benchmark never executed
• 962f1c1: 8262886: javadoc generates broken links with {@inheritdoc}
• f7ffd58: 8267602: [macos] [lanai] java/awt/PrintJob/Text/stringwidth.sh doesn't exit on cancelling print dialog

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.

[vnkozlov]

Good.

[jamsheedcm]

Thank you for the reviews Vladimir, Igor!
/integrate

[openjdk]

Going to push as commit 5644c4f.
Since your change was applied there have been 11 commits pushed to the master branch:

• a4d2a9a: 8269745: [JVMCI] restore original qualified exports to Graal
• e377397: 8268566: java/foreign/TestResourceScope.java timed out
• 6c76e77: 8260684: vmTestbase/gc/gctests/PhantomReference/phantom002/TestDescription.java timed out
• 4bbf11d: 8269580: assert(is_valid()) failed: invalid register (-1)
• 54dd510: 8269704: Typo in j.t.Normalizer.normalize()
• a8385fe: 8269354: javac crashes when processing parenthesized pattern in instanceof
• c16d1fc: 8269285: Crash/miscompile in CallGenerator::for_method_handle_inline after JDK-8191998
• ad27d9b: 8269088: C2 fails with assert(!n->is_Store() && !n->is_LoadStore()) failed: no node with a side effect
• c67a7b0: 8269230: C2: main loop in micro benchmark never executed
• 962f1c1: 8262886: javadoc generates broken links with {@inheritdoc}
• ... and 1 more: https://git.openjdk.java.net/jdk17/compare/4930ae96d8083070482f6ac78faed9ae9dda2df7...master

Your commit was automatically rebased without conflicts.

[openjdk]

@jamsheedcm Pushed as commit 5644c4f.

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