Fw: [8u] Request for enhancement backport approval for 8154156: PPC64: improve array copy stubs by using vector instructions

[Kazunori Ogata]

Hi,

Ping.  Can anyone approve an enhancement backport request for 8154156: 
PPC64: improve array copy stubs by using vector instructions?

Regards,
Ogata

----- Forwarded by Kazunori Ogata/Japan/IBM on 2019/01/15 18:12 -----

Kazunori Ogata/Japan/IBM wrote on 2019/01/08 14:13:24:

> From: Kazunori Ogata/Japan/IBM
> To: jdk8u-dev at openjdk.java.net
> Date: 2019/01/08 14:13
> Subject: [8u] Request for enhancement  backport approval for 8154156: 
> PPC64: improve array copy stubs by using vector instructions
> 
> Hi,
> 
> May I get an approval for enhancement backport of 8154156: PPC64: 
improve 
> array copy stubs by using vector instructions?
> 
> To make this patch buildable (and usable by other planned backports 
listed
> in [1]), I cherry picked config_dscr() and its dependent code from [2,3] 

> and has_mfdscr() from [4].
> 
> These changes have been reviewed in hotspot-compiler-dev ML:
> 
https://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/2019-January/
> 031998.html
> 
> Original patch: http://hg.openjdk.java.net/jdk/jdk/rev/c9d756fa846e
> Weberv: 
http://cr.openjdk.java.net/~horii/jdk8u_aes_be/8154156/webrev.01/
> 
> I confirmed it was buildable for both release and fastdebug builds, and 
> JTREG caused no degradation.
> 
> Refs:
> [1] 
http://mail.openjdk.java.net/pipermail/ppc-aix-port-dev/2018-December/
> 003818.html
> [2] 8149655: PPC64: Implement CompactString intrinsics
>     http://hg.openjdk.java.net/jdk/jdk/rev/6241574f5982
> [3] 8080684: PPC64: Fix little-endian build after "8077838: Recent 
> developments for ppc"
>     http://hg.openjdk.java.net/jdk/jdk/rev/12ccf8b26eb0 
> [4] 8077838: Recent developments for ppc.
>     http://hg.openjdk.java.net/jdk/jdk/rev/c703c89fddbf
> 
> Regards,
> Ogata