RFR(S): 8178811: Minimize the AVX <-> SSE transition penalty on x86

[Vladimir Kozlov]

What is important is 'Fix version'. 'Affected version' could be all 
current and previous releases.

 From the beginning I thought it is targeting JDK 10. To avoid confusion 
I set 'Fix version' to 10.

It may go into 9 Update as other small enchantments.

Regards,
Vladimir

On 4/16/17 3:03 AM, Andrew Haley wrote:
> Hi,
>
> On 14/04/17 19:17, Deshpande, Vivek R wrote:
>
>> This fix minimizes the AVX to SSE and SSE to AVX transition penalty
>> through generation of vzeroupper instruction.
>
> This looks like a performance enhancement, rather than a bug.  Is JDK
> 9 still open for performance enhancement?  I thought we were in
> rampdown, but the report is targeted to 9.
>
> Andrew.
>