=> 0x7fac7f7b62dc <g_type_check_instance_cast+28>:	mov    (%rax),%rdi
   0x7fac7f7b62df <g_type_check_instance_cast+31>:	cmp    $0x3fc,%rdi
   0x7fac7f7b62e6 <g_type_check_instance_cast+38>:	ja     0x7fac7f7b63a0 <g_type_check_instance_cast+224>
   0x7fac7f7b62ec <g_type_check_instance_cast+44>:	mov    %rdi,%rdx
   0x7fac7f7b62ef <g_type_check_instance_cast+47>:	lea    0x21e42a(%rip),%rax        # 0x7fac7f9d4720
   0x7fac7f7b62f6 <g_type_check_instance_cast+54>:	shr    $0x2,%rdx
   0x7fac7f7b62fa <g_type_check_instance_cast+58>:	mov    (%rax,%rdx,8),%r9
   0x7fac7f7b62fe <g_type_check_instance_cast+62>:	test   %r9,%r9
   0x7fac7f7b6301 <g_type_check_instance_cast+65>:	je     0x7fac7f7b63b0 <g_type_check_instance_cast+240>
   0x7fac7f7b6307 <g_type_check_instance_cast+71>:	movzbl 0x16(%r9),%eax
   0x7fac7f7b630c <g_type_check_instance_cast+76>:	and    $0x4,%eax
   0x7fac7f7b630f <g_type_check_instance_cast+79>:	cmp    $0x1,%al
   0x7fac7f7b6311 <g_type_check_instance_cast+81>:	sbb    %edx,%edx
   0x7fac7f7b6313 <g_type_check_instance_cast+83>:	add    $0x1,%edx
   0x7fac7f7b6316 <g_type_check_instance_cast+86>:	cmp    $0x1,%al
   0x7fac7f7b6318 <g_type_check_instance_cast+88>:	sbb    %r10d,%r10d