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8303105: LoopRangeStrideTest fails IR verification on x86 #12938

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@jatin-bhateja jatin-bhateja commented Mar 9, 2023

SLP fails to recognize valid address expression during SWPointer creation for memory operands with 32 bit jvm, this prevents gathering adjacent memory operations.
Debug trace with -XX:+TraceSuperWord -XX:+TraceNewVectors -XX:CompileCommand=VectorizeDebug,,3 shows following errors .

SWPointer::memory_alignment: SWPointer p invalid, return bottom_align
SWPointer::memory_alignment: SWPointer p invalid, return bottom_align
SWPointer::memory_alignment: SWPointer p invalid, return bottom_align
SWPointer::memory_alignment: SWPointer p invalid, return bottom_align
SWPointer::memory_alignment: SWPointer p invalid, return bottom_align

Problem also exist in JDK17 LTS. As an interim solution to prevent this showing up as a GHA test failure, we can enable the test only for x86_64 and aarch64 targets. Difference in address expression b/w X86 32 and 64 bit jvm will be root caused in follow issue JDK-8303885.


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  • JDK-8303105: LoopRangeStrideTest fails IR verification on x86

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bridgekeeper bot commented Mar 9, 2023

👋 Welcome back jbhateja! 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 openjdk bot added the rfr Pull request is ready for review label Mar 9, 2023
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openjdk bot commented Mar 9, 2023

@jatin-bhateja The following label will be automatically applied to this pull request:

  • hotspot-compiler

When this pull request is ready to be reviewed, an "RFR" email will be sent to the corresponding mailing list. If you would like to change these labels, use the /label pull request command.

@openjdk openjdk bot added the hotspot-compiler hotspot-compiler-dev@openjdk.org label Mar 9, 2023
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mlbridge bot commented Mar 9, 2023

Webrevs

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Looks good and trivial.

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openjdk bot commented Mar 9, 2023

@jatin-bhateja 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:

8303105: LoopRangeStrideTest fails IR verification on x86

Reviewed-by: 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 1 new commit pushed to the master branch:

  • 34a9246: 8274264: Not all of G1 young collection verification honors the verification type

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@openjdk openjdk bot added the ready Pull request is ready to be integrated label Mar 9, 2023
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Thanks @TobiHartmann , integrating it.

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/integrate

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openjdk bot commented Mar 9, 2023

Going to push as commit 713def0.
Since your change was applied there has been 1 commit pushed to the master branch:

  • 34a9246: 8274264: Not all of G1 young collection verification honors the verification type

Your commit was automatically rebased without conflicts.

@openjdk openjdk bot added the integrated Pull request has been integrated label Mar 9, 2023
@openjdk openjdk bot closed this Mar 9, 2023
@openjdk openjdk bot removed ready Pull request is ready to be integrated rfr Pull request is ready for review labels Mar 9, 2023
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openjdk bot commented Mar 9, 2023

@jatin-bhateja Pushed as commit 713def0.

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

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