8255287: aarch64: fix SVE patterns for vector shift count

[RealFYang]

SVE patterns for vector shift count cannot be matched due to bad matching rules.
Also code gen is not correct in certain cases for vlslS_imm and vlsrS_imm.
Please refer to JDK-8255287 for details.
Patch passed tier1 tests using QEMU system emulator which supports SVE.

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Progress

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

Testing

	Linux x32	Linux x64	Windows x64	macOS x64
Build	✔️ (1/1 passed)	✔️ (5/5 passed)	✔️ (2/2 passed)	✔️ (2/2 passed)
Test (tier1)		✔️ (9/9 passed)	✔️ (9/9 passed)	✔️ (9/9 passed)

Issue

• JDK-8255287: aarch64: fix SVE patterns for vector shift count

Reviewers

• Andrew Dinn (@adinn - Reviewer)

Contributors

• Yanhong Zhu <zhuyanhong2@huawei.com>

Download

$ git fetch https://git.openjdk.java.net/jdk pull/827/head:pull/827
$ git checkout pull/827

[bridgekeeper]

👋 Welcome back fyang! 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]

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

• hotspot

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.

[mlbridge]

Webrevs

• 00: Full (a56582b)

[RealFYang]

/contributor add Yanhong Zhu zhuyanhong2@huawei.com

[RealFYang]

/cc hotspot-compiler

[openjdk]

@RealFYang
Contributor Yanhong Zhu <zhuyanhong2@huawei.com> successfully added.

[openjdk]

@RealFYang
The hotspot-compiler label was successfully added.

[adinn]

These changes look ok.

[openjdk]

@RealFYang 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:

8255287: aarch64: fix SVE patterns for vector shift count

Co-authored-by: Yanhong Zhu <zhuyanhong2@huawei.com>
Reviewed-by: adinn

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 5 new commits pushed to the master branch:

• 9007bc2: 8255129: [PPC64, s390] Check vector_size_supported and add VectorReinterpret node
• df79257: 8255274: [PPC64, s390] wrong StringLatin1.indexOf version matched
• 55a0cad: 8254982: (tz) Upgrade time-zone data to tzdata2020c
• ac1748e: 8254670: SVE test uses linux-specific api
• 0e92053: 8254286: Wrong inference in switch expression with "null" arm

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.

[RealFYang]

Thanks for the quick review :-) @adinn

[RealFYang]

/integrate

[openjdk]

@RealFYang Since your change was applied there have been 6 commits pushed to the master branch:

• 12daf2b: 8255340: [s390] build failure after JDK-8255208
• 9007bc2: 8255129: [PPC64, s390] Check vector_size_supported and add VectorReinterpret node
• df79257: 8255274: [PPC64, s390] wrong StringLatin1.indexOf version matched
• 55a0cad: 8254982: (tz) Upgrade time-zone data to tzdata2020c
• ac1748e: 8254670: SVE test uses linux-specific api
• 0e92053: 8254286: Wrong inference in switch expression with "null" arm

Your commit was automatically rebased without conflicts.

Pushed as commit 5ec1b80.

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