Uncalled functions in hello world

[Basile B.]

On Wednesday, 8 April 2020 at 13:57:47 UTC, Stefan Koch wrote:
> The current phobos hello world
> import std.stdio;
> void main() { "Hello World".writeln; }
> generates a list of 36 functions which are generated and 
> emitted but not called, and therefore presumably only used at 
> compile time
>
> Those are:
>
> [...]
>
> So you can see that there is something to be won even in the 
> most trivial examples if we have facilities to disable codegen 
> for functions which are only used at compiletime.

Are you sure that this is not also caused by bad speculative 
template instantiation ?
In case I'd use the wrong wording, I mean "some function 
templates that are wrongly determined to be emitted ".