How to stop DMD from exploding the executable file size?

[max haughton]

On Tuesday, 30 August 2022 at 22:51:46 UTC, ryuukk_ wrote:
> Having this simple code makes the executable gigantic!
>
> ```D
> struct Big
> {
>     int[1024 * 1024] big = 0;
> }
>
> Big big;
> ```
>
> Only with DMD, LDC produces a tiny executable
>
> Is there a flag available to fix this behavior? it's not 
> sustainable

You really shouldn't have structs this big unless absolutely 
necessary.

The thing being elided is the initializer and pointer bitmap for 
the runtime to use.