Generated binary size

[Dicebot]

On Friday, 13 September 2013 at 11:58:53 UTC, Joseph Rushton 
Wakeling wrote:
> On 13/09/13 13:45, Dicebot wrote:
>> I was experimenting with `--gc-sections` effect on D code 
>> (with great results)
>
> Can you expand on this?  Never heard of it before and can't 
> find it in gdc --help or manpages.

`--gc-sections` is ld flag that enabled garbage collection of 
unreferenced sections in resulting binary. For it to work gcc/gdc 
need to be run with `-fdata-sections`and `-ffunction-sections` 
placing each symbol into own section. That will, for example, 
remove template function bodies that got inlined for all calls. 
For template-heavy code with good inliner it can reduce binary 
sizes tremendously (running it on snippet from this topic will 
reduce gdc binary size to almost match dmd one).