RFR: 8355074: RISC-V: C2: Support Vector-Scalar version of Zvbb Vector And-Not instruction [v4]

[Feilong Jiang]

On Fri, 25 Apr 2025 02:34:19 GMT, Anjian-Wen <duke at openjdk.org> wrote:

>> support zvbb vand-not vector-scalar version, which Op1 is the sign-extended or truncated value in scalar register rs1
>> add C2 match rule
>> add related Tests in IRNode structure
>> 
>> passed jtreg test test/hotspot/jtreg/compiler/vectorapi/*
>
> Anjian-Wen has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains seven additional commits since the last revision:
> 
>  - Merge branch 'openjdk:master' into Vector_And-Not_vx
>  - split the patch into cleanformat and enable zvbb
>  - add prefix for test String
>  - modify format
>    
>    change some '_imm' to '_vi'
>  - modify v0.t to $v0
>  - add format fix
>  - RISC-V: Support Zvbb Vector And-Not vx and add its tests
>    
>    Support Zvbb Vector And-Not vx and add its tests
>    modify name of the match rule and test name

Marked as reviewed by fjiang (Committer).

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PR Review: https://git.openjdk.org/jdk/pull/24709#pullrequestreview-2792876093