https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66462
Bill Sacks <sacks at ucar dot edu> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |sacks at ucar dot edu --- Comment #9 from Bill Sacks <sacks at ucar dot edu> --- I have found that, with gfortran, the following all lead to a SIGFPE if I compile with -ffpe-trap=invalid: (1) ieee_value(my_nan, ieee_quiet_nan) (2) ieee_value(my_nan, ieee_signaling_nan) (3) ieee_is_nan called on a signaling NaN (4) gfortran's built-in isnan called on a signaling NaN (5) ieee_class called on a signaling NaN (See https://github.com/NCAR/billsacks-gfortran-snan/tree/master_n01 for test code and more information.) Are all of these duplicate problems to the one reported here, or are some of these separate issues that should be opened?