------- Comment #6 from rguenth at gcc dot gnu dot org 2010-01-05 15:50 ------- IIRC the problem is that using fma causes the -0 argument for fsqrt (which behaves 100% correct). Thus a more sensible fix would be to do the 0+ on the fma result.
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42286
