> While Araqs example macro is very interesting, I strongly assume that > performance impact of float literal types is only minimal in most cases.
But that's for floats, perhaps. The only reason I went down that road is because I found a noticeable speedup by putting `'i32` and `int32` everywhere, but it was easy to miss decorating a literal and made the code visually very messy. The example is the first post code but with N=100 million, and I run that exe 10 times. On my machine c++ (int32) takes about 7.5 seconds per run, and nim (int64) 8.5 seconds per run. If I liberally `i32` decorate, then nim becomes identical to the c++ version in runtime. With @cblake's suggestion, I tried `-march=native` and/or `-mavx` with no benefit for me.
