8361829: [TESTBUG] RISC-V: compiler/vectorization/runner/BasicIntOpTest.java fails with RVV but not Zvbb

[DingliZhang]

Hi all,
Please take a look and review this PR, thanks!

After JDK-8355293 , compiler/vectorization/runner/BasicIntOpTest.java failswith RVV but not Zvbb.
The reason for the error is that PopCountVI on RISC-V requires Zvbb, not just RVV.

Test

• Run compiler/vectorization/runner/BasicIntOpTest.java on k1
• Run compiler/vectorization/runner/BasicIntOpTest.java on qemu-system (enable RVV) w/ and w/o zvbb

---

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Issue

• JDK-8361829: [TESTBUG] RISC-V: compiler/vectorization/runner/BasicIntOpTest.java fails with RVV but not Zvbb (Bug - P4)

Reviewers

• Fei Yang (@RealFYang - Reviewer)

Reviewing

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[openjdk]

@DingliZhang This change now passes all automated pre-integration checks.

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After integration, the commit message for the final commit will be:

8361829: [TESTBUG] RISC-V: compiler/vectorization/runner/BasicIntOpTest.java fails with RVV but not Zvbb

Reviewed-by: fyang

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

• 73ab54e: 8360302: Update --release 25 symbol information for JDK 25 build 29
• 80662a4: 8361499: Intersection type cast causes javac crash with -Xjcov
• c118543: 8361704: Parallel: Simplify logic condition in MutableNUMASpace::initialize

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[RealFYang]

Thanks. Looks reasonable.