LDC optimized builds causing unexpected behaviour when sharing variable between threads

[Kagamin]

On Wednesday, 1 June 2022 at 13:35:45 UTC, Keivan Shah wrote:
> So to me it seemed like marking the variable as `shared` should 
> have made it accessible as well as it takes care of the memory 
> ordering.

No, `shared` is a low level primitive. If you want one size fits 
all concurrency, use mutex, synchronized statement or 
std.concurrency.