[aarch64-port-dev ] population count intrinsic performance

[Andrew Haley]

On 06/11/2015 05:54 PM, Alexeev, Alexander wrote:
>>> Now, what I am not clear on, is whether if you just use iRegI here
>>> rather than iRregIorL2I you are guaranteed that the top 32 bits are 0.
>>
>> If you can't use movw then src should be an iRegI.
> Agreed.
> 
>> __ mov($tmp$$FloatRegister, __ T1D, 0, $src$$Register);
> I've fixed that.
> 
> What would be the next step?

Post it as an RFR to hotspot-dev

Andrew.