CR for RFR 8142980

Berg, Michael C michael.c.berg at
Thu Nov 19 19:57:36 UTC 2015

Yes to all with no issues.
We even extended compiler tests for 64bit and 32bit to cover AVX{0,1,2} as well as SpecJVM2008 on AVX {0..3}


From: Igor Veresov [mailto:igor.veresov at]
Sent: Wednesday, November 18, 2015 1:51 PM
To: Berg, Michael C
Cc: hotspot-compiler-dev at
Subject: Re: CR for RFR 8142980

Looks good to me. Have you tested it with all the jtreg tests available in the jdk repo (jdk/test, hospot/test)?


On Nov 13, 2015, at 12:50 PM, Berg, Michael C <michael.c.berg at<mailto:michael.c.berg at>> 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.



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.


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