RFR: 8334078: RISC-V: TestIntVect.java fails after JDK-8332153 when running without RVV

[Gui Cao]

On Thu, 13 Jun 2024 05:49:59 GMT, Fei Yang <fyang at openjdk.org> wrote:

>> Hi, test/hotspot/jtreg/compiler/c2/cr7200264/TestIntVect.java fails without RVV after [JDK-8332153](https://bugs.openjdk.org/browse/JDK-8332153) in fastdebug mode.  see jbs issue for exception information.
>> 
>> As discussed on jbs, we prefixed the single letter cpu features with rv so that there would be no problem. And to synchronize the test cases.
>> 
>> After this patch, we can get cpu feature string like this:
>> 
>> ----------System.out:(4/168)----------
>> WB.getCPUFeatures(): "rv64 rvi rvm rva rvf rvd rvc rvv"
>> CPUInfo.getAdditionalCPUInfo(): ""
>> CPUInfo.getFeatures(): [rv64, rvi, rvm, rva, rvf, rvd, rvc, rvv]
>> TEST PASSED
>> 
>> 
>> ### Testing
>> - [x] All Tests related to all changes in this patch on Banana Pi BPI-F3 board (with RVV1.0) (fastdebug)
>> - [x] All Tests related to all changes in this patch on SOPHON SG2042 (fastdebug)
>> - [ ] Run tier1-3 tests on SOPHON SG2042 (fastdebug)
>
> Nice cleanup! Thanks!
> 
> Suggestion about the JBS title: `RISC-V: TestIntVect.java fails after JDK-8332153 when running without RVV`

@RealFYang @Hamlin-Li : Thanks for the review.

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PR Comment: https://git.openjdk.org/jdk/pull/19686#issuecomment-2173135628