RFR(M): 8240248 : Extend superword reduction optimizations for x86

[Viswanathan, Sandhya]

Hi Eric,

Thanks, we will add the test/micro and send the updated webrev for review.

Best Regards,
Sandhya

-----Original Message-----
From: hotspot-compiler-dev <hotspot-compiler-dev-bounces at openjdk.java.net> On Behalf Of Eric Caspole
Sent: Monday, March 02, 2020 7:04 AM
To: hotspot-compiler-dev at openjdk.java.net
Subject: Re: RFR(M): 8240248 : Extend superword reduction optimizations for x86

Hi Sandhya and Shravya,
Are there already any micros in the test/micro/ that show the benefit of this optimization? If not could you add one to the webrev?
Thanks,
Eric


On 2/28/20 19:51, Viswanathan, Sandhya wrote:
> Shravya and I would like to submit a webrev which extends super-word reduction optimizations to support and, or, xor reduction for x86.
> 
> JBS: https://bugs.openjdk.java.net/browse/JDK-8240248
> Webrev: http://cr.openjdk.java.net/~sviswanathan/8240248/webrev.00/
> 
> Patch is extracted from vectorIntrinsics branch of Panama with additional changes to support auto-vectorization.
> 
> Please review,
> 
> Best Regards,
> Sandhya
>