Are there any default dmd optimizations

[deadalnix]

On Tuesday, 26 February 2013 at 07:56:05 UTC, foobar wrote:
> The latest case was the huge properties debate and its 
> offshoots regarding ref semantics which I didn't even bother 
> participate in. Bartosz developed an ownership system for D to 
> address all the safety issues raised by ref *years ago* and it 
> was rejected due to complexity. Now, Andrei tries to achieve 
> similar safety guaranties by giving ref the semantics of 
> borrowed pointers. It all seems to me like trying to build an 
> airplane without wings cause they are too complex. Rust on the 
> other hand already integrated an ownership system and is 
> already far ahead of D's design. D had talked about macros 
> *years ago* and rust already implemented them.
>

Do you have a link to that ? I know that he did, but never could 
find the proposal itself.