8293524: RISC-V: Use macro-assembler functions as appropriate

[RealFYang]

Use of assember functions on riscv can be improved. For example, we use 'fence(0xf, 0xf)' in function TemplateInterpreterGenerator::generate_safept_entry_for to emit a full memory fence instruction. Here we should use 'membar(MacroAssembler::AnyAny)' instead, which would make the code more readable. This also replace some calls to 'li' with 'mv' so that it will be more consistent when moving integer constant.

Testing: Tier1 tested on Linux-riscv64 SiFive Unmatched board.

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Issue

• JDK-8293524: RISC-V: Use macro-assembler functions as appropriate

Reviewers

• Aleksey Shipilev (@shipilev - Reviewer)
• Feilong Jiang (@feilongjiang - Author)

Reviewing

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[openjdk]

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[mlbridge]

Webrevs

• 00: Full (5e4da5bf)

[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:

8293524: RISC-V: Use macro-assembler functions as appropriate

Reviewed-by: shade, fjiang

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At the time when this comment was updated there had been 3 new commits pushed to the master branch:

• 8d3399b: 8292758: put support for UNSIGNED5 format into its own header file
• 6677227: 8293497: Build failure due to MaxVectorSize was not declared when C2 is disabled after JDK-8293254
• 986b834: 8293489: Accept CAs with BasicConstraints without pathLenConstraint

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.

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[feilongjiang]

Nice clean up, thanks! (Not a JDK reviewer)

[RealFYang]

@shipilev @feilongjiang : Thanks for reviewing this.
/integrate

[openjdk]

Going to push as commit 43e191d.
Since your change was applied there have been 12 commits pushed to the master branch:

• 14eb5ad: 8291753: Add JFR event for GC CPU Time
• 30d4145: 8293230: x86_64: Move AES and GHASH stub definitions into separate source files
• 4c5501c: 8293548: ProblemList sun/management/jmxremote/bootstrap/RmiBootstrapTest.java#id1 on linux-x64
• 46e6e41: 8293051: Further refactor javac after removal of -source/-target/--release 7
• c0ee30a: 8293348: A false cyclic inheritance error reported
• 85ec1f8: 8293492: ShenandoahControlThread missing from hs-err log and thread dump
• 6bd2794: 8293304: Replace some usages of INTPTR_FORMAT with PTR_FORMAT
• 98da03a: 8293432: Use diamond operator in java.management
• ffc249a: 8289613: Drop use of Thread.stop in jshell
• 8d3399b: 8292758: put support for UNSIGNED5 format into its own header file
• ... and 2 more: https://git.openjdk.org/jdk/compare/fc5f97fe379825cb927666ae26aef00082cfae56...master

Your commit was automatically rebased without conflicts.

[openjdk]

@RealFYang Pushed as commit 43e191d.

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