DMD 1.039 and 2.023 releases

[bearophile]

V 1.039 compiles my dlibs fine, but I have not timed the compilation times yet.

The long divides are much faster than before and almost as the ones done by GCC, good work.

The timings of the division benchmark I have shown last time:
  DMD1.038: 63.7 s
  DMD1.039: 12.2 s
  GCC4.2.1: 11.1 s

Regarding the pure optimizations done by D2, how can the LDC compiler do the same? Are them done by the front-end?

Bye,
bearophile