------- Comment #3 from ubizjak at gmail dot com 2007-02-01 08:16 ------- (In reply to comment #2) > The generic implementation, including for SSE, is
I don't think we want to be too generic there. We should not implement proposed transformations as part of fold_builtin_classify() [builtins.c] as this would penalize soft-float targets too much. In this case, we would trade one call to isinf() to calls to __unorddf2 and__ledf2 plus fabs() bit-manipulation. For isnan(), we trade the call to isnan to the call to __unorddf2. IMO, we still need optabs here... -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30652
