C implementation of mod_1_1

[Torbjorn Granlund]

nisse at lysator.liu.se (Niels Möller) writes:

  I'm very curious about tuneup results on other machines (and of course,
  if I have broken anything...).
  
Your mod_1 family improvements have moved MOD_1N_TO_MOD_1_1_THRESHOLD
and MOD_1U_TO_MOD_1_1_THRESHOLD down by a few notches, making the
average values 4 and 3, respectively.

Nice!

-- 
Torbjörn