https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77518
--- Comment #2 from Gerhard Steinmetz <gerhard.steinmetz.fort...@t-online.de> --- New backtrace : $ gfortran-7-20161106 -fcoarray=single z1.f90 z1.f90:5:0: print *, sizeof(z) internal compiler error: Segmentation fault 0xc3a64f crash_signal ../../gcc/toplev.c:338 0x787698 gfc_conv_intrinsic_sizeof ../../gcc/fortran/trans-intrinsic.c:6717 0x78ff19 gfc_conv_intrinsic_function(gfc_se*, gfc_expr*) ../../gcc/fortran/trans-intrinsic.c:8990 0x768432 gfc_conv_expr(gfc_se*, gfc_expr*) ../../gcc/fortran/trans-expr.c:7695 0x76ff28 gfc_conv_expr_reference(gfc_se*, gfc_expr*) ../../gcc/fortran/trans-expr.c:7830 0x796cc6 gfc_trans_transfer(gfc_code*) ../../gcc/fortran/trans-io.c:2482 0x728a07 trans_code ../../gcc/fortran/trans.c:1902 0x793a20 build_dt ../../gcc/fortran/trans-io.c:1980 0x728a27 trans_code ../../gcc/fortran/trans.c:1874 0x758cd8 gfc_generate_function_code(gfc_namespace*) ../../gcc/fortran/trans-decl.c:6258 0x6e1d90 translate_all_program_units ../../gcc/fortran/parse.c:5944 0x6e1d90 gfc_parse_file() ../../gcc/fortran/parse.c:6144 0x725822 gfc_be_parse_file ../../gcc/fortran/f95-lang.c:198