[14] RFR (L): 8235756: C2: Merge AD instructions for DivV, SqrtV, FmaV, AddReductionV, and MulReductionV nodes

[Vladimir Kozlov]

webrev.03.vsqrt_double changes include code from webrev.02.vsqrt_float 
and webrev.05.vfma_double - from webrev.04.vfma_float.

Otherwise Div, Sqrt, Fma code changes are fine. Even with above mess-up.

May be you need to separate Reduction changes into a separate patch so 
we can have more time to review it. It is more complex.

Thanks,
Vladimir


On 12/11/19 3:53 AM, Vladimir Ivanov wrote:
> http://cr.openjdk.java.net/~vlivanov/jbhateja/8235756/webrev.00/all/
> https://bugs.openjdk.java.net/browse/JDK-8235756
> 
> Merge AD instructions for the following vector nodes:
>    - DivVF/DivVD
>    - SqrtVF/SqrtVD
>    - FmaVF/FmaVD
>    - AddReductionV*
>    - MulReductionV*
> 
> Individual patches:
> 
> http://cr.openjdk.java.net/~vlivanov/jbhateja/8235756/webrev.00/individual
> 
> Testing: tier1-4, test run on different CPU flavors (KNL, SKL, etc)
> 
> Contributed-by: Jatin Bhateja <jatin.bhateja at intel.com>
> Reviewed-by: vlivanov, sviswanathan, ?
> 
> Best regards,
> Vladimir Ivanov