D generates large assembly for simple function

[Seb]

On Saturday, 27 January 2018 at 19:43:50 UTC, Stefan Koch wrote:
> On Saturday, 27 January 2018 at 19:42:01 UTC, Matt wrote:
>> Godbolt link: https://godbolt.org/g/t5S976
> The actual code is :
>  imul edi, edi
>  mov eax, edi
>  ret
>
>
> The rest is runtime initialization.
> which you can remove using an undocumented -betterC switch.

BTW as asm.dlang.org is dead, you can use run.dlang.io for these 
things, e.g.

DMD: https://run.dlang.io/is/lLL1aJ
LDC: https://run.dlang.io/is/sVn5tu

(-output-s / -asm are only added for extra convenience)

Since a couple of days, it even does demangling of the symbols.
Though, of course, if you want to look only at LDC's output, 
godbolt is still the better choice.