CR for RFR 8142980

[Vladimir Ivanov]

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
>