=> 0x7fc4bb961cfd <g_type_check_instance_cast+61>:	mov    (%rsi),%r13
   0x7fc4bb961d00 <g_type_check_instance_cast+64>:	cmp    $0x3fc,%r13
   0x7fc4bb961d07 <g_type_check_instance_cast+71>:	ja     0x7fc4bb961dc0 <g_type_check_instance_cast+256>
   0x7fc4bb961d0d <g_type_check_instance_cast+77>:	mov    %r13,%rdx
   0x7fc4bb961d10 <g_type_check_instance_cast+80>:	lea    0x21bc29(%rip),%rax        # 0x7fc4bbb7d940
   0x7fc4bb961d17 <g_type_check_instance_cast+87>:	shr    $0x2,%rdx
   0x7fc4bb961d1b <g_type_check_instance_cast+91>:	mov    (%rax,%rdx,8),%rcx
   0x7fc4bb961d1f <g_type_check_instance_cast+95>:	xor    %edx,%edx
   0x7fc4bb961d21 <g_type_check_instance_cast+97>:	xor    %ebp,%ebp
   0x7fc4bb961d23 <g_type_check_instance_cast+99>:	test   %rcx,%rcx
   0x7fc4bb961d26 <g_type_check_instance_cast+102>:	je     0x7fc4bb961d3d <g_type_check_instance_cast+125>
   0x7fc4bb961d28 <g_type_check_instance_cast+104>:	movzbl 0x16(%rcx),%eax
   0x7fc4bb961d2c <g_type_check_instance_cast+108>:	and    $0x4,%eax
   0x7fc4bb961d2f <g_type_check_instance_cast+111>:	cmp    $0x1,%al
   0x7fc4bb961d31 <g_type_check_instance_cast+113>:	sbb    %edx,%edx
   0x7fc4bb961d33 <g_type_check_instance_cast+115>:	add    $0x1,%edx