RFR: 8257137: Revise smov and umov in aarch64 assembler [v5]

[Hao Sun]

On Tue, 2 Mar 2021 11:53:54 GMT, Andrew Haley <aph at openjdk.org> wrote:

>> Hao Sun has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Use macro INSN
>>   
>>   Use macro INSN to define smov and umov so that it would be easy for
>>   users to figure out the difference between these two instructions.
>
> Looks good, thanks.

Thanks for your review. @theRealAph @nsjian 

I suppose this patch is ready to be merged now.

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PR: https://git.openjdk.java.net/jdk/pull/1586