http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47558
--- Comment #62 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2011-02-05 19:23:09 UTC --- > ... FYI, I don't > see why getting ___divdc3 fixed in time for Lion should be that difficult. >From the audit trail of PR42333, this is not a bug but a choice of speed over safety: the safe implementation of the complex division is not more accurate that the fast/naive implementation when the later works, it just extend the range for large/small values of the modulus. If you know that you data are in the safe region, you may prefer the fast case.