RFR: 8301818: RISC-V: Factor out function mvw from MacroAssembler [v2]

[Gui Cao]

On Sat, 4 Feb 2023 10:52:50 GMT, Ludovic Henry <luhenry at openjdk.org> wrote:

>> Gui Cao has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Revert use lwu
>
> src/hotspot/cpu/riscv/vtableStubs_riscv.cpp line 92:
> 
>> 90: 
>> 91:     // check offset vs vtable length
>> 92:     __ lwu(t0, Address(t2, Klass::vtable_length_offset()));
> 
> There is an extra `lwu` -> `lw` which doesn't happen anywhere else.

Thanks for your review. fixed.

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PR: https://git.openjdk.org/jdk/pull/12425