What should happen here?

[Adam D Ruppe]

On Wednesday, 22 September 2021 at 18:30:41 UTC, Ali Çehreli 
wrote:
> Shouldn't preserving the contents of registers be the 
> responsibility of the compiler or the GC?

The compiler thinks the contents don't need to be preserved at 
all.

One thing we might do is if passing a pointer to an extern(C) 
function, the compiler assumes it shouldn't stomp the memory 
until end of scope.