RFR: 8298345: Fix another two C2 IR matching tests for RISC-V

[Gui Cao]

On Thu, 8 Dec 2022 03:50:53 GMT, Fei Yang <fyang at openjdk.org> wrote:

>> Fix two IR matching tests that failed on RISC-V.
>> 
>> Vector api Node will be matched only when UseRVV is enabled:
>> - test/hotspot/jtreg/compiler/c2/irTests/TestAutoVectorization2DArray.java
>> - test/hotspot/jtreg/compiler/vectorization/TestAutoVecIntMinMax.java
>> 
>> Please take a look and have some reviews. Thanks a lot.
>> 
>> ## Testing:
>> -  fastdebug on unmatched board without support for RVV
>> - - test/hotspot/jtreg/compiler/c2/irTests/TestAutoVectorization2DArray.java - no tests selected as expected
>> - - test/hotspot/jtreg/compiler/vectorization/TestAutoVecIntMinMax.java -  no tests selected as expected
>> - fastdebug with -XX:+UseRVV on QEMU
>> - - test/hotspot/jtreg/compiler/c2/irTests/TestAutoVectorization2DArray.java - The C2 graph generated by the test is as expected
>> - -  test/hotspot/jtreg/compiler/vectorization/TestAutoVecIntMinMax.java  -The C2 graph generated by the test is as expected
>> - fastdebug with -XX:-UseRVV on QEMU
>> - - test/hotspot/jtreg/compiler/c2/irTests/TestAutoVectorization2DArray.java - no tests selected as expected
>> - -  test/hotspot/jtreg/compiler/vectorization/TestAutoVecIntMinMax.java  - no tests selected as expected
>
> Looks reasonable to me. Thanks.

@RealFYang @DingliZhang @feilongjiang Thanks for the review.

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PR: https://git.openjdk.org/jdk/pull/11577