RFR: 8170106: AArch64: Multiple JVMCI issues

[Doug Simon]

(including hotspot-compiler-dev)

> On 21 Nov 2016, at 16:22, Andrew Haley <aph at redhat.com> wrote:
> 
> JVMCI nearly works, but there are multiple minor bugs which make it
> non-functional.  It's not possible to separate these into multiple
> issues, so this is a composite patch.
> 
> The handling of some relocs is wrong.
> Narrow klasses and OOPs have only partial support, returning Unimplemented()
> Register numbering for float registers is wrong
> Scratch registers r8 and r9 aren't marked as non-allocatable.
> 
> http://cr.openjdk.java.net/~aph/8170106
> 
> Andrew.