RFR: 8365844: RISC-V: TestBadFormat.java fails when running without RVV [v3]

[Dingli Zhang]

> Hi,
> Can you help to review this patch? Thanks!
> 
> We noticed that testlibrary_tests/ir_framework/tests/TestBadFormat.java fails when running tier4 tests on p550.
> The reason for the error is that the Vector test related to badVectorNodeSize requires RVV on riscv, otherwise the expected passing case will fail and cannot match FailCount.
> 
> ### Test (fastdebug)
> - [x] Run testlibrary_tests/ir_framework/tests/TestBadFormat.java on k1/k230/sg2042

Dingli Zhang has updated the pull request incrementally with one additional commit since the last revision:

  Add an additional comment

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Changes:
  - all: https://git.openjdk.org/jdk/pull/26855/files
  - new: https://git.openjdk.org/jdk/pull/26855/files/d4468d61..0390a6ef

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=26855&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=26855&range=01-02

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/26855.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/26855/head:pull/26855

PR: https://git.openjdk.org/jdk/pull/26855