RFR: 8305008: RISC-V: Factor out immediate checking functions from assembler_riscv.inline.hpp [v2]

[Dingli Zhang]

On Wed, 29 Mar 2023 01:06:08 GMT, Feilong Jiang <fjiang at openjdk.org> wrote:

>> Dingli Zhang has updated the pull request incrementally with two additional commits since the last revision:
>> 
>>  - Remove unecessary zero checking
>>  - Fix assert
>
> Okay then.

@feilongjiang @RealFYang Thanks for the review!

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PR Comment: https://git.openjdk.org/jdk/pull/13202#issuecomment-1491150088