On 01/24/2013 11:16 AM, Walter Bright wrote:
If you use the 64 bit model, dmd will use SIMD instructions for float and double, which are much faster.
I generally find that dmd-compiled programs run at about half the speed of those built with gdc or ldc (the latter seem pretty much equivalent these days, some programs run faster compiled with one, some with the other). That's running off latest GitHub source for all compilers.
That's been a fairly consistent speed difference for a long time. And yes, I'm using 64-bit.
