RFR: 8355074: RISC-V: C2: Support Vector-Scalar version of Zvbb Vector And-Not instruction [v3]

[Anjian-Wen]

On Fri, 25 Apr 2025 02:06:13 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 incrementally with one additional commit since the last revision:
> 
>   split the patch into cleanformat and enable zvbb

here is the another related pr for clean up
https://github.com/openjdk/jdk/pull/24865

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PR Comment: https://git.openjdk.org/jdk/pull/24709#issuecomment-2829231235