Null check optimization

[Jakob Bornecrantz via digitalmars-d-ldc]

On Friday, 4 December 2015 at 23:33:01 UTC, deadalnix wrote:
> Hi all,
>
> I was at the LLVM meetup yesterday and talked with a 
> contributor that use LLVM to run java code. One on the very 
> interesting that came up is a way to use segfault in order to 
> do null cheks. It is explained here:
>
> http://llvm.org/docs/FaultMaps.html#make-implicit-metadata
>
> I know that ldc generate null checks when calling various 
> functions. It may be a good idea, considering this is 
> unexpected, ot use the same mechanism in LDC.

Very intreresting, once support has been added to the druntime
other backends should be able to do the same optimization.

Cheers, Jakob.