[aarch64-port-dev ] RFR: 8150394: aarch64: add support for 8.1 LSE CAS instructions

[Andrew Haley]

On 02/24/2016 12:49 PM, Andrew Haley wrote:
> One more thing: with 8148146 we have new entry points and C2 nodes
> for WeakCompareAndSwapX.  We'll need to add a "bool weak" parameter
> to MacroAssembler::cmpxchgw.  I suppose it's OK for this to be done
> in a later commit.

Forget that: hs-comp is currently broken because of Unsafe changes.  I'm
going to make it build again and push.  Your changes can go on top of
that.

Andrew.