gcd_22

[Torbjörn Granlund]

Marco Bodrato <bodrato at mail.dm.unipi.it> writes:

  For a generic code with variable N, one may prefer a code that chooses
  if a copy or a shorter shift is needed. But this means more code and
  the shift could not be an in-lined fixed size version...

I broke out the unlikely up[0] code into a separate function, a function
which can be common for any size.  A function which we might call from
asm.

I agree that the copy and the shift could be combined.

-- 
Torbjörn
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