RFR: 8296602: RISC-V: improve performance of copy_memory stub [v2]

[Fei Yang]

On Thu, 17 Nov 2022 08:05:59 GMT, Vladimir Kempik <vkempik at openjdk.org> wrote:

>> src/hotspot/cpu/riscv/stubGenerator_riscv.cpp line 1042:
>> 
>>> 1040:     __ bind(copy32);
>>> 1041:     if (is_backwards) {
>>> 1042:       __ addi(src, src, -wordSize*4);
>> 
>> Can you leave a space before and after the operator here and other places?
>
> Not sure I'm getting you right here. Please elaborate

I am suggesting this style:

__ addi(src, src, -wordSize * 4);

instead of：

__ addi(src, src, -wordSize*4);

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PR: https://git.openjdk.org/jdk/pull/11058