RFR: In ASM SATB barrier, mov pre_val to c_rarg0 before call early, to protect c_rarg1

[Roman Kennke]

Am 20.06.2018 um 16:09 schrieb Aleksey Shipilev:
> On 06/20/2018 04:08 PM, Roman Kennke wrote:
>> Am 20. Juni 2018 15:38:23 MESZ schrieb Aleksey Shipilev <shade at redhat.com>:
>>> On 06/20/2018 02:45 PM, Roman Kennke wrote:
>>>> http://cr.openjdk.java.net/~rkennke/c1-satb-regs/webrev.00/
>>>
>>> I verified with VerifyJCStress in my failing workload -- it passes.
>>>
>>> Minor nit: "smarged"?
>>>  266   assert(thread != c_rarg0, "smarged arg");
>>
>> You've never heard of 'smarged' ? It's like 'smashed', but Mordor-speak ;-)
> 
> Well, I looked it up in Urban Dictionary, and it was unsettling ;)
>   https://www.urbandictionary.com/define.php?term=smarged
> 

Haha. Ewww.

'Smarged' also goes well as shortcut for smashed arg btw.

Roman