https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71703
--- Comment #1 from Gerhard Steinmetz <gerhard.steinmetz.fort...@t-online.de> --- Backtrace with gfortran-7-20160626 : z2.f90:10:0: print *, same_type_as(x, y%a) internal compiler error: in wide_int_to_tree, at tree.c:1487 0xca0093 wide_int_to_tree(tree_node*, generic_wide_int<wide_int_ref_storage<false> > const&) ../../gcc/tree.c:1487 0xca0199 build_int_cst(tree_node*, long) ../../gcc/tree.c:1295 0x6eac8a gfc_conv_same_type_as ../../gcc/fortran/trans-intrinsic.c:6804 0x6f8429 gfc_conv_intrinsic_function(gfc_se*, gfc_expr*) ../../gcc/fortran/trans-intrinsic.c:7814 0x6db0d4 gfc_conv_function_expr ../../gcc/fortran/trans-expr.c:6569 0x6e10ca gfc_conv_expr_reference(gfc_se*, gfc_expr*) ../../gcc/fortran/trans-expr.c:7718 0x6fdd2d gfc_trans_transfer(gfc_code*) ../../gcc/fortran/trans-io.c:2382 0x6ab6f7 trans_code ../../gcc/fortran/trans.c:1886 0x6fb90f build_dt ../../gcc/fortran/trans-io.c:1909 0x6ab6d7 trans_code ../../gcc/fortran/trans.c:1858 0x6cf0c9 gfc_generate_function_code(gfc_namespace*) ../../gcc/fortran/trans-decl.c:6171 0x6665e6 translate_all_program_units ../../gcc/fortran/parse.c:5843 0x6665e6 gfc_parse_file() ../../gcc/fortran/parse.c:6049 0x6a7e12 gfc_be_parse_file ../../gcc/fortran/f95-lang.c:201