CR for RFR 8142980

[Berg, Michael C]

Vladimir, since I have folks requesting more additions anyways, I will clean them up on the next round. 

Regards,
Michael

-----Original Message-----
From: Vladimir Ivanov [mailto:vladimir.x.ivanov at oracle.com] 
Sent: Thursday, November 19, 2015 12:38 PM
To: Berg, Michael C; 'hotspot-compiler-dev at openjdk.java.net'
Subject: Re: CR for RFR 8142980

I'm curious why some of CPU capability checks are 32-bit only, e.g.:
+  NOT_LP64(assert(VM_Version::supports_evex(), ""));

+  NOT_LP64(assert(VM_Version::supports_avx512dq(), ""));

Best regards,
Vladimir Ivanov

On 11/13/15 11:50 PM, Berg, Michael C wrote:
> Hi Folks,
>
> I would like to contribute bug fixes for AVX 512 which address 64-bit 
> derby on EVEX enabled targets as well as KNL support and instrinsic 
> support for AVX512.
>
> These changes are also needed for a follow on changeset which 
> introduces the use of these additions in the AVX512 instrinsic code.
>
> Bug-id: https://bugs.openjdk.java.net/browse/JDK-8142980
>
>
> webrev:
>
> http://cr.openjdk.java.net/~mcberg/8142980/webrev.01/
>
> The derby metric fails to run on 64-bit SKX and KNL EVEX enabled 
> platforms. Also code support is needed for AVX512 intrinsics and 
> include KNL support.
>
> Thanks,
>
> Michael
>