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

[Doerr, Martin]

Hi Christian,

can I consider this change reviewed?
You had a look at it in your reply to my email announcing the C1 PPC64 port. Your reply:
http://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/2015-October/019220.html

I'm writing separate mails to get a confirmation in each mail thread.

Thanks,
  Martin


From: Doerr, Martin
Sent: Donnerstag, 8. Oktober 2015 23:49
To: 'hotspot compiler'
Subject: RFR(M) 8138895: C1: PPC64 Port needs special register for Locks in synchronization code

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

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