http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49813
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #51 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-07-28 06:47:43 UTC --- It isn't hard to implement it ourselves just on the REAL_VALUE_TYPE type. We'd just need to handle a few special cases (e.g. x NaN or y NaN I guess we'd normally just don't optimize), and then we'd just add_significand/sub_significand of all zeros but LSB bit set, if it returns non-zero, bump/decrease exponent if possible, if not possible, give up/set to zero.