------- Comment #2 from rth at gcc dot gnu dot org 2007-02-01 00:28 ------- The generic implementation, including for SSE, is
isgreater (abs(f), FLT_MAX) For isfinite, use islessequal instead. For isnan, one can use isunordered(f, f) For isnormal, it'd be isgreaterequal(abs(f), FLT_MIN) & islessequal(abs(f), FLT_MAX) which is less likely to be friendly to inline. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30652