[aarch64-port-dev ] RFR: JDK8: Add support for Neon implementation of CRC32

[Andrew Haley]

On 06/12/2014 01:12 PM, Edward Nevill wrote:
> On Thu, 2014-06-12 at 12:51 +0100, Andrew Haley wrote:
>> On 06/12/2014 11:34 AM, Edward Nevill wrote:
>>> I have added a -XX:+/-UseNeon switch to enable/disable the Neon CRC. This is off by default.
>>
>> Shouldn't we probe for Neon?
> 
> AFAIUI Neon is always available on aarch64.
> 
> It is only the 1Q extensions to PMULL/PMULL2 which may not be available because they are part of the crypto extensions.
> 
> I have turned it off by default for the moment until we have the opportunity to test it fully.

OK.

Andrew.