https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88048
--- Comment #1 from G. Steinmetz <gs...@t-online.de> ---
Invalid code nearby, down to at least gcc-5 :
$ cat z4.f90
subroutine s(x)
integer, allocatable :: x(:)
data x(1:2) /3, 4/
end
$ gfortran-9-20181111 -c z4.f90
f951: internal compiler error: Segmentation fault
0xc88aff crash_signal
../../gcc/toplev.c:325
0x626f50 gfc_get_section_index(gfc_array_ref*, __mpz_struct (*) [1],
__mpz_struct (*) [1])
../../gcc/fortran/data.c:726
0x6b506f check_data_variable
../../gcc/fortran/resolve.c:15562
0x6b54c2 traverse_data_var
../../gcc/fortran/resolve.c:15764
0x6a6f71 resolve_data
../../gcc/fortran/resolve.c:15819
0x6a6f71 resolve_types
../../gcc/fortran/resolve.c:16644
0x6abcec gfc_resolve(gfc_namespace*)
../../gcc/fortran/resolve.c:16733
0x699ab7 resolve_all_program_units
../../gcc/fortran/parse.c:6064
0x699ab7 gfc_parse_file()
../../gcc/fortran/parse.c:6314
0x6e2b7f gfc_be_parse_file
../../gcc/fortran/f95-lang.c:204
