RFR: JDK-8213199: GC abstraction for Assembler::needs_explicit_null_check()

[Roman Kennke]

> On 13/11/2018 12:26, Roman Kennke wrote:
>> The point is to *not* (accidentally) give it a free pass, but instead
>> force explicit null-checking on it.
> 
> Oops! Yes, which of course accords with the logic of the patch that I
> conveniently inverted.
> 
> In which case the correction you posted good.

Moved to proper RFR:
http://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/2018-November/031344.html

Roman