RFR(M): 8248190: PPC: Enable Power10 system and use new byte-reverse instructions

[joserz at linux.ibm.com]

Hello team,

Here's the 2nd version, implementing the suggestions asked by Martin.

Webrev: https://cr.openjdk.java.net/~mhorie/8248190/webrev.01/
Bug: https://bugs.openjdk.java.net/browse/JDK-8248190

Thank you!!

Jose

On Sat, Jun 27, 2020 at 09:29:32AM +0000, Doerr, Martin wrote:
> Hi Jose,
> 
> Can you replace the outdated description of PowerArchitecturePPC64 in globals_poc.hpp by something generic, please?
> 
> Please update the Copyright year in vm_version_poc.hpp.
> 
> I can‘t test the change, but it looks good to me.
> 
> Best regards,
> Martin
> 
> > Am 26.06.2020 um 20:29 schrieb "joserz at linux.ibm.com" <joserz at linux.ibm.com>:
> > 
> > Hello team!
> > 
> > This patch introduces Power10 to OpenJDK and implements three new instructions:
> > - brh - byte-reverse halfword
> > - brw - byte-reverse word
> > - brd - byte-reverse doubleword
> > 
> > Webrev: https://cr.openjdk.java.net/~mhorie/8248190/webrev.00/
> > Bug: https://bugs.openjdk.java.net/browse/JDK-8248190
> > 
> > Thanks for your review!
> > 
> > Jose R. Ziviani