RFR: 8222029: Optimize Math.floorMod

[Joseph D. Darcy]

Should any additional cases be added to 
test/jdk/java/lang/Math/DivModTests.java to cover the new implementation?

Thanks,

-Joe

On 4/5/2019 10:21 AM, Claes Redestad wrote:
>
>
> On 2019-04-05 17:41, Andrew Haley wrote:
>> On 4/5/19 2:44 PM, Claes Redestad wrote:
>>> Testing: tier1-2, all Math tests run locally, -prof perfasm 
>>> verification
>>> on the provided microbenchmark.
>>
>> Looks good.
>
> Thanks!
>
>>
>> I've kicked the tyres on AArch64, and it looks like a useful 
>> optimization. The
>> gains when the divisor is constant (a common case) are modest but 
>> worthwhile.
>>
>
> Thanks for trying it out and glad to hear it helps on AArch64 as well.
>
> /Claes