RFR: 8238669: Long.divideUnsigned is extremely slow for certain values (Needs to be Intrinsic) [v2]

[rgiulietti]

On Wed, 9 Sep 2020 06:25:40 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> rgiulietti has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   8238669: Long.divideUnsigned is extremely slow for certain values (Needs to be Intrinsic)
>>   
>>   Added helpful parentheses and comments to clarify aspects not discussed in "Hacker's Delight".
>
> Since this patch does not involve adding the intrinsic, maybe drop "(Needs to be intrinsic)" from the synopsis?

@shipilev I agree, but that's the title chosen by the reporter of the JBS issue. Not sure I can edit it without
impacting bots and tools.

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PR: https://git.openjdk.java.net/jdk/pull/31