8296912: C2: CreateExNode::Identity fails with assert(i < _max) failed: oob: i=1, _max=1

[GoeLin]

I backport this for parity with 11.0.19-oracle.

I had to resolve the test @run description because -XX:+StresssIGVN is not in 11.

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Progress

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Issue

• JDK-8296912: C2: CreateExNode::Identity fails with assert(i < _max) failed: oob: i=1, _max=1

Reviewers

• Richard Reingruber (@reinrich - Reviewer)

Reviewing

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$ git fetch https://git.openjdk.org/jdk11u-dev pull/1657/head:pull/1657
$ git checkout pull/1657

Update a local copy of the PR:
$ git checkout pull/1657
$ git pull https://git.openjdk.org/jdk11u-dev pull/1657/head

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[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 (99700e8d)

[reinrich]

Looks good.

Thanks, Richard.

[openjdk]

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

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

8296912: C2: CreateExNode::Identity fails with assert(i < _max) failed: oob: i=1, _max=1

Reviewed-by: rrich

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 13 new commits pushed to the master branch:

• 465b4f2: 8298093: improve cleanup and error handling of awt_parseColorModel in awt_parseImage.c
• 014c5ae: 8297480: GetPrimitiveArrayCritical in imageioJPEG misses result - NULL check
• edf4fb0: 8295211: Fix autoconf 2.71 warning "AC_CHECK_HEADERS: you should use literals"
• 15cb63e: 8261350: Create implementation for NSAccessibilityCheckBox protocol peer
• 8dd8122: 8296924: C2: assert(is_valid_AArch64_address(dest.target())) failed: bad address
• 6c3d4df: 8283719: java/util/logging/CheckZombieLockTest.java failing intermittently
• b52d8ad: 8283717: vmTestbase/nsk/jdi/ThreadStartEvent/thread/thread001 failed due to SocketTimeoutException
• 9c684a1: 8294947: Use 64bit atomics in patch_verified_entry on x86_64
• 71e89e1: 8297569: URLPermission constructor throws IllegalArgumentException: Invalid characters in hostname after JDK-8294378
• 8458368: 8294378: URLPermission constructor exception when using tr locale
• ... and 3 more: https://git.openjdk.org/jdk11u-dev/compare/7bbb6ba0c8e32d13db3350778c4e5ab00abb020d...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.

➡️ 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 9d7bb60.
Since your change was applied there have been 67 commits pushed to the master branch:

• 65180f1: 8290920: sspi_bridge.dll not built if BUILD_CRYPTO is false
• 7e74421: 8286962: java/net/httpclient/ServerCloseTest.java failed once with ConnectException
• ebac392: 8300742: jstat's CGCT is 5 percent higher than the pause time in -Xlog:gc.
• fc4b9de: 8218431: Improved platform checking in makefiles
• 6ffd006: 8241806: The sun/awt/shell/FileSystemViewMemoryLeak.java is unstable
• f5a04fb: 8299194: CustomTzIDCheckDST.java may fail at future date
• acedbcb: 8299296: Write a test to verify the components selection sends ItemEvent
• 37a15a1: 8286800: Assert in PhaseIdealLoop::dump_real_LCA is too strong
• 8547c80: 8300773: Address the inconsistency between the constant array and pool size
• b10ad19: 8282036: Change java/util/zip/ZipFile/DeleteTempJar.java to stop HttpServer cleanly in case of exceptions
• ... and 57 more: https://git.openjdk.org/jdk11u-dev/compare/7bbb6ba0c8e32d13db3350778c4e5ab00abb020d...master

Your commit was automatically rebased without conflicts.

[openjdk]

@GoeLin Pushed as commit 9d7bb60.

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