RFR: Refactor asm acmp

[Roman Kennke]

Am 18.07.2017 um 18:14 schrieb Andrew Haley:
> On 18/07/17 17:00, Aleksey Shipilev wrote:
>> On 07/18/2017 05:57 PM, Roman Kennke wrote:
>>> Oops, some dead stuff sneaked into shenandoahBarrierSet.hpp. Removed:
>>>
>>> http://cr.openjdk.java.net/~rkennke/refactor-acmp/webrev.02/
>> Looks much nicer, go. Only x86, not AArch64?
> cmpoopptr is a strange name: I'd read it as comparing pointers to oops,
> not comparing oops.  Which does it actually do?
>
it compares oops with oops. cmpoop() is already taken (although we'll
probably do some refactoring and reuse it later, but it requires some
upstream work).