=> 0x7f8b28335981 <g_type_check_instance_cast+49>:	mov    (%rdi),%rax
   0x7f8b28335984 <g_type_check_instance_cast+52>:	test   %rax,%rax
   0x7f8b28335987 <g_type_check_instance_cast+55>:	je     0x7f8b28335bf0 <g_type_check_instance_cast+672>
   0x7f8b2833598d <g_type_check_instance_cast+61>:	mov    (%rax),%rax
   0x7f8b28335990 <g_type_check_instance_cast+64>:	cmp    $0x3fc,%rax
   0x7f8b28335996 <g_type_check_instance_cast+70>:	ja     0x7f8b28335a50 <g_type_check_instance_cast+256>
   0x7f8b2833599c <g_type_check_instance_cast+76>:	lea    0x21af9d(%rip),%rdx        # 0x7f8b28550940
   0x7f8b283359a3 <g_type_check_instance_cast+83>:	shr    $0x2,%rax
   0x7f8b283359a7 <g_type_check_instance_cast+87>:	mov    (%rdx,%rax,8),%rax
   0x7f8b283359ab <g_type_check_instance_cast+91>:	test   %rax,%rax
   0x7f8b283359ae <g_type_check_instance_cast+94>:	je     0x7f8b283359c1 <g_type_check_instance_cast+113>
   0x7f8b283359b0 <g_type_check_instance_cast+96>:	testb  $0x4,0x16(%rax)
   0x7f8b283359b4 <g_type_check_instance_cast+100>:	mov    $0x1,%edx
   0x7f8b283359b9 <g_type_check_instance_cast+105>:	mov    $0x1,%r14d
   0x7f8b283359bf <g_type_check_instance_cast+111>:	jne    0x7f8b283359c6 <g_type_check_instance_cast+118>
   0x7f8b283359c1 <g_type_check_instance_cast+113>:	xor    %edx,%edx