die_get_pointer_type
ptr_type = die_get_pointer_type(&state->regs[reg].type, &ptr_die);
ptr_type_a = die_get_pointer_type(type_a, &ptr_a);
ptr_type_b = die_get_pointer_type(type_b, &ptr_b);
if (die_get_pointer_type(type_die, type_die) == NULL ||
ptr_type = die_get_pointer_type(&mem_die, &ptr_die);
ptr_type = die_get_pointer_type(&data->type, &ptr_die);
Dwarf_Die *die_get_pointer_type(Dwarf_Die *type_die, Dwarf_Die *die_mem);