With gfortran version GNU Fortran 95 (GCC) 4.3.0 20070125 (experimental)
when compiling the attached source files with $ ~/gcc/bin/gfortran -ftrapv -c dissipation_coeff.f90 Dissipation_4_3_min_err_coeff.f90 I receive the error message gfortran: Internal error: Illegal instruction (program f951) Please submit a full bug report. See <URL:http://gcc.gnu.org/bugs.html> for instructions. -- Summary: ICE with -ftrapv Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: schnetter at aei dot mpg dot de GCC build triplet: i386-apple-darwin8.8.1 GCC host triplet: i386-apple-darwin8.8.1 GCC target triplet: i386-apple-darwin8.8.1 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30656