[aarch64-port-dev ] Merge up to jdk8-b90

[Andrew Haley]

Hi,

> The attached changesets merge the aarch64 port up to jdk8-b90. jdk8-b90 is
> the first 'fully functional' tag according to Oracle, so is a good point to
> merge to. Hopefully after b90 the changes should start getting less.

This is just fantastic.  Thank you!

> I have built Zero, C1 & C2 and tested as follows:-
> 
> Cross compilation builds, tested on the RTSM model:-
> 
> client-release jtreg/hotspot(255/6/0)
> client-release jtreg/langtools(2668/16/31)
> client-fastdebug jtreg/hotspot(255/6/0)
> zero-release jtreg/hotspot(246/3/12)
> server-fastdebug (queens OK, jdhrystone FAIL, ecm
> sieve,loop,logic,float,method OK string FAIL)
> 
> The numbers in brackets show tests (PASSED/FAILED/Error) respectively for
> jtreg.
> 
> Builtin simulator builds:-
> 
> client-release jtreg/hotspot(239/10/26)
> client-slowdebug (eembc-grinderbench OK)
> server-slowdebug (jdhrystone OK, ecm sieve,loop,logic,float,method OK string
> FAIL)

Is that a regression?

> The changesets below are the changes to the aarch64 specific code to bring it
> in line with the merge up to b90.
> 
> OK to push?

OK, thanks.  There are some changes that I don't quite understand, but we
can look at those later.  It's good to be reasonably up-to-date.

Andrew.