Should we finally ditch the 32-bit build of dmd?

[max haughton]

On Wednesday, 16 June 2021 at 17:59:06 UTC, Andrei Alexandrescu 
wrote:
> By numerous reports the world is ditching 32 bit for good:
>
> https://www.androidauthority.com/arm-32-vs-64-bit-explained-1232065/
>
> There's significant effort needed in the dmd source code to 
> accommodate 32 bit builds, which nobody should use.
>
> Ditch?

Perhaps we can start by ditching the schedulers for Pentium chips 
from the 90s - even charitably (i.e. The P6 architecture did live 
for a while) it's obsolete (and more importantly not needed for 
supporting those targets). That way we gain experience pressing 
delete rather than making the code dead and leaving it, and we 
reduce the surface area of old/dead code which could be silently 
broken if other things change around it.

Andrei, you may recall this was discussed in a meeting gone by, 
and Walter seemed to agree in principle to some changes (this one 
wasn't discussed) to the older parts of the compiler.