=> 0xb70ae8df <g_type_check_instance_cast+15>:	call   0xb7082e17
   0xb70ae8e4 <g_type_check_instance_cast+20>:	add    $0x1c710,%ebx
   0xb70ae8ea <g_type_check_instance_cast+26>:	mov    %edi,0x44(%esp)
   0xb70ae8ee <g_type_check_instance_cast+30>:	test   %esi,%esi
   0xb70ae8f0 <g_type_check_instance_cast+32>:	mov    %ebp,0x48(%esp)
   0xb70ae8f4 <g_type_check_instance_cast+36>:	je     0xb70ae998 <g_type_check_instance_cast+200>
   0xb70ae8fa <g_type_check_instance_cast+42>:	mov    0x50(%esp),%edx
   0xb70ae8fe <g_type_check_instance_cast+46>:	mov    (%edx),%eax
   0xb70ae900 <g_type_check_instance_cast+48>:	test   %eax,%eax
   0xb70ae902 <g_type_check_instance_cast+50>:	je     0xb70aeae8 <g_type_check_instance_cast+536>
   0xb70ae908 <g_type_check_instance_cast+56>:	mov    (%eax),%ebp
   0xb70ae90a <g_type_check_instance_cast+58>:	mov    %ebp,%esi
   0xb70ae90c <g_type_check_instance_cast+60>:	and    $0xfffffffc,%esi
   0xb70ae90f <g_type_check_instance_cast+63>:	cmp    $0x3fc,%ebp
   0xb70ae915 <g_type_check_instance_cast+69>:	jbe    0xb70aeaa8 <g_type_check_instance_cast+472>
   0xb70ae91b <g_type_check_instance_cast+75>:	xor    %eax,%eax