RFR: 8302908: RISC-V: Support masked vector arithmetic instructions for Vector API [v16]

[Dingli Zhang]

On Thu, 13 Apr 2023 13:28:17 GMT, Feilong Jiang <fjiang at openjdk.org> wrote:

>> Dingli Zhang has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Fix typo
>
> src/hotspot/cpu/riscv/riscv_v.ad line 2108:
> 
>> 2106: 
>> 2107: instruct vsubS_masked(vReg dst_src1, vReg src2, vRegMask_V0 vmask) %{
>> 2108:   match(Set dst_src1 (SubVS (Binary dst_src1 src2) vmask));
> 
> Can we just merge those match rules in one instruct just like `vlsrIL`? Looks like those instructs only differ from BasicType.

Fixed.

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PR Review Comment: https://git.openjdk.org/jdk/pull/12682#discussion_r1166986311