How does D cope with aliasing

[#ponce]

Stewart Gordon Wrote:
> My recollection of reading the spec is that a D compiler is allowed to 
> optimise by assuming no pointer aliasing.  But I can't remember at the 
> moment where I read this.

I don't know if this is neat or nasty for a compiler to do so. 

OT : Is there a DMD switch to disable bound check exceptions ? This way I wouldn't have to rely on pointers so much.