8352159: RISC-V: add more zfa support

[Hamlin-Li]

Hi,
Can you help to review this patch?

Previously in #23844, loadConH is implemented only with flh, but fli_h should be more efficient if Zfa is supported; min/max for HF could use fmin/maxm.h instead too.

Thanks!

---

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• Commit message must refer to an issue

Issue

• JDK-8352159: RISC-V: add more zfa support (Enhancement - P4)

Reviewers

• Fei Yang (@RealFYang - Reviewer)
• Ludovic Henry (@luhenry - Committer)
• Robbin Ehn (@robehn - Reviewer)

Reviewing

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👋 Welcome back mli! 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]

@Hamlin-Li 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:

8352159: RISC-V: add more zfa support

Reviewed-by: fyang, luhenry, rehn

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 36 new commits pushed to the master branch:

• b32be18: 8352178: Add precondition in VMThread::execute to prevent deadlock
• 07667ca: 8352506: Simplify make/test/JtregNativeHotspot.gmk
• b545b9e: 8352584: [Backout] G1: Pinned regions with pinned objects only reachable by native code crash VM
• 1c0fa0a: 8352512: TestVectorZeroCount: counter not reset between iterations
• 466f82a: 8314999: IR framework fails to detect allocation
• 06ba6cf: 8329173: LCMS_CFLAGS from configure are lost
• 56038fb: 8352317: Assertion failure during size estimation of BoxLockNode with -XX:+UseAPX
• 2bc4f64: 8335708: C2: Compile::verify_graph_edges must start at root and safepoints, just like CCP traversal
• 9a17a6f: 8350749: Upgrade JLine to 3.29.0
• 91836e1: 8352276: Skip jtreg tests using native executable with libjvm.so/libjli.so dependencies on static JDK
• ... and 26 more: https://git.openjdk.org/jdk/compare/b891bfa7e67c21478475642e2bfa2cdc65a3bffe...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.

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[mlbridge]

Webrevs

• 03: Full (59533263)
• 02: Full - Incremental (ec9f4725)
• 01: Full - Incremental (2b244afc)
• 00: Full (e4636ecb)

[RealFYang]

Looks good to me. I have a suggestion about the value searching. We can consider that in the future.

[Hamlin-Li]

Looks good to me. I have a suggestion about the value searching. We can consider that in the future.

Thank you!

[robehn]

Yes, good, thanks!

[Hamlin-Li]

Thank you @luhenry @robehn !

[Hamlin-Li]

/integrate

[openjdk]

Going to push as commit 04eac0c.
Since your change was applied there have been 41 commits pushed to the master branch:

• ac760dd: 8352423: RISC-V: simplify DivI/L ModI/L
• d1cf232: 8352248: Check if CMoveX is supported
• 2b55979: 8352529: RISC-V: enable loopopts tests
• 8469458: 8352511: Show additional level of headings in table of contents
• 28250f8: 8352151: Fix display issues in javadoc-generated docs
• b32be18: 8352178: Add precondition in VMThread::execute to prevent deadlock
• 07667ca: 8352506: Simplify make/test/JtregNativeHotspot.gmk
• b545b9e: 8352584: [Backout] G1: Pinned regions with pinned objects only reachable by native code crash VM
• 1c0fa0a: 8352512: TestVectorZeroCount: counter not reset between iterations
• 466f82a: 8314999: IR framework fails to detect allocation
• ... and 31 more: https://git.openjdk.org/jdk/compare/b891bfa7e67c21478475642e2bfa2cdc65a3bffe...master

Your commit was automatically rebased without conflicts.

[openjdk]

@Hamlin-Li Pushed as commit 04eac0c.

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