RFR(M) 8138895: C1: PPC64 Port needs special register for Locks in synchronization code

[Lindenmaier, Goetz]

Hi Martin,

this change looks good, thanks.

@Vladimir, thanks for sponsoring these changes!  

Best regards,
  Goetz.

> -----Original Message-----
> From: hotspot-compiler-dev [mailto:hotspot-compiler-dev-
> bounces at openjdk.java.net] On Behalf Of Vladimir Ivanov
> Sent: Dienstag, 17. November 2015 12:07
> To: Doerr, Martin; hotspot compiler
> Subject: Re: RFR(M) 8138895: C1: PPC64 Port needs special register for Locks
> in synchronization code
> 
> Looks good, Martin.
> 
> I'll take care of the change.
> 
> Best regards,
> Vladimir Ivanov
> 
> On 10/9/15 12:49 AM, Doerr, Martin wrote:
> > Hi,
> >
> > This change introduces syncLockOpr like the existing syncTempOpr. Other
> > platforms than PPC64 just return a new register so it's no functional
> > change there.
> >
> > This change is a prerequisite for our C1 on PPC64 contribution.
> >
> > Webrev is here:
> >
> > http://cr.openjdk.java.net/~mdoerr/8138895_c1_syncLockOpr/webrev.00
> >
> > Implementation for aarch64 is included but not tested.
> >
> > Please review this change.  I need a sponsor, please.
> >
> > Best regards,
> >
> >    Martin
> >