RFR: 8235551: BitMap::count_one_bits should use population_count

Claes Redestad claes.redestad at oracle.com
Wed Dec 11 15:19:22 UTC 2019


Thanks for reviewing, Nils!

/Claes

On 2019-12-11 15:02, Nils Eliasson wrote:
> Hi Claes,
> 
> Looks good.
> 
> Regards,
> Nils
> 
> 
> On 2019-12-08 22:54, Claes Redestad wrote:
>> Hi,
>>
>> with some adjustments, BitMap::count_one_bits can be rewritten to use
>> the population_count utility method introduced in JDK-8217519
>>
>> Bug:    https://bugs.openjdk.java.net/browse/JDK-8235551
>> Webrev: http://cr.openjdk.java.net/~redestad/8235551/open.00/
>>
>> This generalizes population_count to accept any unsigned integer, to
>> accommodate that BitMap will use 32- or 64-bit integers depending on
>> platform.
>>
>> Testing: tier1-3
>>
>> Thanks!
>>
>> /Claes


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