RFR: 8302289: RISC-V: Use bgez instruction in arraycopy_simple_check when possible

[Gui Cao]

On Mon, 13 Feb 2023 03:05:37 GMT, Gui Cao <gcao at openjdk.org> wrote:

> HI,
> 
> Refer to src/hotspot/cpu/s390/c1_LIRAssembler_s390.cpp, because Klass::_lh_neutral_value is always 0, we can use bgez here instead of the combination of mv and bge.
> 
> Please take a look and have some reviews. Thanks a lot.
> ## Testing:
> - all tier1 on unmatched board without new failures

Thanks all for the review.

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PR: https://git.openjdk.org/jdk/pull/12525