https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70870
--- Comment #2 from Gerhard Steinmetz <gerhard.steinmetz.fort...@t-online.de> --- A variant that aborts with this message directly : $ gfortran-6 z1.f90 f951: internal compiler error: in gfc_assign_data_value, at fortran/data.c:449 $ cat z1.f90 program p type t integer :: n end type type(t), pointer :: z => null() data z%n / 3 / print *, z%n end --- A minimal change of z1.f90 immediately points to pr50410 : $ cat z2.f90 program p type t integer :: n end type type(t), pointer :: z data z%n / 3 / print *, z%n end $ gfortran-6 z2.f90 f951: internal compiler error: in record_reference, at cgraphbuild.c:64