pi benchmark on ldc and dmd

[bearophile]

Adam D. Ruppe:
 
> It was something that used bigint. I whipped it up myself earlier
> this morning, but left the code on my laptop. I'll post it when
> I have a chance.

OK.
In such situations it's never enough to compare the D code compiled with DMD to the D code compiled with LDC. You also need a reference point, like a C version compiled with GCC (here using GMP bignums). Such reference points are necessary to anchor performance discussions to something.

Bye,
bearophile