DMD producing huge binaries

[Kagamin via Digitalmars-d]

On Friday, 20 May 2016 at 19:37:23 UTC, Andrei Alexandrescu wrote:
> Was talking to Walter on the phone and he just had one of those 
> great ideas: encode in the function mangle that it returns 
> "auto". I thought that was fantastic. Would that work? -- Andrei

Equivalent to not mangling return type at all. But this leaves 
you with 2^^n growth, still exponential. Also is there any 
evidence that compression is faster than hashing?