[8u] RFR for backport of 8154156: PPC64: improve array copy stubs by using vector instructions

[Kazunori Ogata]

Hi Martin,

Thank you for reviewing the patch.  I'll submit RFR to jdk8u-dev mailing 
list referring your reply.


Regards,
Ogata


"Doerr, Martin" <martin.doerr at sap.com> wrote on 2019/01/07 22:08:57:

> From: "Doerr, Martin" <martin.doerr at sap.com>
> To: Kazunori Ogata <OGATAK at jp.ibm.com>, "hotspot-compiler-
> dev at openjdk.java.net" <hotspot-compiler-dev at openjdk.java.net>, "ppc-aix-
> port-dev at openjdk.java.net" <ppc-aix-port-dev at openjdk.java.net>
> Date: 2019/01/07 22:09
> Subject: RE: [8u] RFR for backport of 8154156: PPC64: improve array copy 

> stubs by using vector instructions
> 
> Hi Ogata,
> 
> looks good to me. However, I'm not a jdk8u reviewer.
> 
> Best regards,
> Martin
> 
> 
> -----Original Message-----
> From: ppc-aix-port-dev <ppc-aix-port-dev-bounces at openjdk.java.net> On 
> Behalf Of Kazunori Ogata
> Sent: Montag, 7. Januar 2019 06:14
> To: hotspot-compiler-dev at openjdk.java.net; 
ppc-aix-port-dev at openjdk.java.net
> Subject: Re: [8u] RFR for backport of 8154156: PPC64: improve array copy 

> stubs by using vector instructions
> 
> Hi,
> 
> Ping.  Can anyone review this enhancement backport request?
> 
> Regards,
> Ogata
> 
> 
> Kazunori Ogata/Japan/IBM wrote on 2018/12/18 23:41:16:
> 
> > From: Kazunori Ogata/Japan/IBM
> > To: hotspot-compiler-dev at openjdk.java.net, 
> ppc-aix-port-dev at openjdk.java.net
> > Date: 2018/12/18 23:41
> > Subject: [8u] RFR for backport of 8154156: PPC64: improve array copy 
> stubs
> > by using vector instructions
> > 
> > Hi,
> > 
> > May I get review 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].
> > 
> > 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 relase 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
> 
>