hgcd1/2

[Torbjörn Granlund]

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

  Not bad, is it?

Not at all bad!

  Must we use masks to obtain branchless code? Or should we let the compiler
  choose?

My experience is that the compiler cannot be trusted in this area; it
may or may not use cmov and its reasons for doing it either way are
subtle.

Therefore, using masking is the safest option.  One may then proceed to
asm code.

-- 
Torbjörn
Please encrypt, key id 0xC8601622