------- Comment #3 from dominiq at lps dot ens dot fr 2008-01-08 10:17 ------- I just had a look to the doc patch in http://gcc.gnu.org/ml/gcc-patches/2008-01/msg00273.html:
... +Note that while the throughput of the sequence is higher than the throughput +of the non-reciprocal instruction, the precision of the sequence can be +decreased up to 2 ulp. It looks nice, but could you add (after converting my frenglish) something along the line "in particular the inverse of 1.0 is no longer 1.0, but 0.99999994" (or nearest(1.0,-1.0) or its C* equivalent). -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34702
