Hi Martin,

Thanks a lot for your review and testing on your side.


Best regards,
--
Michihiro,
IBM Research - Tokyo

Inactive hide details for "Doerr, Martin" ---2018/12/13 00:53:57---Hi Michihiro, this looks good to me. We should be able to te"Doerr, Martin" ---2018/12/13 00:53:57---Hi Michihiro, this looks good to me. We should be able to test it since it is for Power8. Maybe Gust

From: "Doerr, Martin" <martin.doerr@sap.com>
To: Michihiro Horie <HORIE@jp.ibm.com>, "ppc-aix-port-dev@openjdk.java.net" <ppc-aix-port-dev@openjdk.java.net>, hotspot compiler <hotspot-compiler-dev@openjdk.java.net>
Cc: Gustavo Romero <gromero@linux.vnet.ibm.com>, "Simonis, Volker" <volker.simonis@sap.com>
Date: 2018/12/13 00:53
Subject: RE: 8215262: PPC64: FMA Vectorization on PPC64




Hi Michihiro,

this looks good to me. We should be able to test it since it is for Power8. Maybe Gustavo would like to test in addition.

Best regards,
Martin


From: Michihiro Horie <HORIE@jp.ibm.com>
Sent: Mittwoch, 12. Dezember 2018 15:50
To: ppc-aix-port-dev@openjdk.java.net; hotspot compiler <hotspot-compiler-dev@openjdk.java.net>
Cc: Gustavo Romero <gromero@linux.vnet.ibm.com>; Doerr, Martin <martin.doerr@sap.com>; Simonis, Volker <volker.simonis@sap.com>
Subject: RFR: 8215262: PPC64: FMA Vectorization on PPC64

Dear all,

Would you please review the following change?
This change supports FMA vectorization on PPC64.

Bug: https://bugs.openjdk.java.net/browse/JDK-8215262
Webrev: http://cr.openjdk.java.net/~mhorie/8215262/webrev.00/

Microbenchmark I used is http://cr.openjdk.java.net/~mhorie/8215262/VFma.java
It showed ~50% reduction in the execution time.

I also tested with JTREG and there was no difference in the results compared to the original.


Best regards,
--
Michihiro,
IBM Research - Tokyo