8263644: Add Extract float nodes implementation for Arm SVE

[Wanghuang-Huawei]

We implement ExtractD & ExtractF Node for Arm SVE backend.

• overload encoding functions sve_lasta & sve_lastb
• for future JDK-8263424, we eliminate vector length judgements and use rscratch1

---

Progress

• Change must not contain extraneous whitespace
• Change must be properly reviewed

Issue

• JDK-8263644: Add Extract float nodes implementation for Arm SVE

Reviewers

• Xiaohong Gong (@XiaohongGong - no project role)
• Ningsheng Jian (@nsjian - Committer)

Contributors

• Wang Huang <whuang@openjdk.org>
• He Xuejin <hexuejin2@huawei.com>
• Ai Jiaming <aijiaming1@huawei.com>

Download

To checkout this PR locally:
$ git fetch https://git.openjdk.java.net/panama-vector pull/51/head:pull/51
$ git checkout pull/51

To update a local copy of the PR:
$ git checkout pull/51
$ git pull https://git.openjdk.java.net/panama-vector pull/51/head

[Wanghuang-Huawei]

/contributor add Wang Huang whuang@openjdk.org
/contributor add He Xuejin hexuejin2@huawei.com
/contributor add Ai Jiaming aijiaming1@huawei.com

[bridgekeeper]

👋 Welcome back whuang! A progress list of the required criteria for merging this PR into vectorIntrinsics will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

@Wanghuang-Huawei Could not parse Wang Huang whuang@openjdk.org as a valid contributor.
Syntax: /contributor (add|remove) [@user | openjdk-user | Full Name <email@address>]. For example:

• /contributor add @openjdk-bot
• /contributor add duke
• /contributor add J. Duke <duke@openjdk.org>

[openjdk]

@Wanghuang-Huawei Could not parse He Xuejin hexuejin2@huawei.com as a valid contributor.
Syntax: /contributor (add|remove) [@user | openjdk-user | Full Name <email@address>]. For example:

• /contributor add @openjdk-bot
• /contributor add duke
• /contributor add J. Duke <duke@openjdk.org>

[openjdk]

@Wanghuang-Huawei Could not parse Ai Jiaming aijiaming1@huawei.com as a valid contributor.
Syntax: /contributor (add|remove) [@user | openjdk-user | Full Name <email@address>]. For example:

• /contributor add @openjdk-bot
• /contributor add duke
• /contributor add J. Duke <duke@openjdk.org>

[mlbridge]

Webrevs

• 01: Full - Incremental (630a267)
• 00: Full (8b70753)

[Wanghuang-Huawei]

/contributor add Wang Huang whuang@openjdk.org
/contributor add He Xuejin hexuejin2@huawei.com
/contributor add Ai Jiaming aijiaming1@huawei.com

[openjdk]

@Wanghuang-Huawei
Contributor Wang Huang <whuang@openjdk.org> successfully added.

[openjdk]

@Wanghuang-Huawei
Contributor He Xuejin <hexuejin2@huawei.com> successfully added.

[openjdk]

@Wanghuang-Huawei
Contributor Ai Jiaming <aijiaming1@huawei.com> successfully added.

[XiaohongGong]

LGTM, thanks!

[openjdk]

@Wanghuang-Huawei This PR has not yet been marked as ready for integration.

[nsjian]

Looks good. Thanks!

[openjdk]

@Wanghuang-Huawei 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:

8263644: Add Extract float nodes implementation for Arm SVE

Co-authored-by: Wang Huang <whuang@openjdk.org>
Co-authored-by: He Xuejin <hexuejin2@huawei.com>
Co-authored-by: Ai Jiaming <aijiaming1@huawei.com>
Reviewed-by: xgong, njian

You can use pull request commands such as /summary, /contributor and /issue to adjust it as needed.

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[Wanghuang-Huawei]

/integrate

[openjdk]

@Wanghuang-Huawei
Your change (at version 630a267) is now ready to be sponsored by a Committer.

[nsjian]

/sponsor

[openjdk]

@nsjian @Wanghuang-Huawei Pushed as commit 47334c5.

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