=> 0x7f4051413c46:	add    $0x8,%rsp
   0x7f4051413c4a:	movzbl %al,%eax
   0x7f4051413c4d:	retq   
   0x7f4051413c4e:	xchg   %ax,%ax
   0x7f4051413c50:	mov    %rbx,-0x10(%rsp)
   0x7f4051413c55:	mov    %rbp,-0x8(%rsp)
   0x7f4051413c5a:	mov    %rsi,%rbx
   0x7f4051413c5d:	sub    $0x18,%rsp
   0x7f4051413c61:	mov    0x20(%rsi),%rsi
   0x7f4051413c65:	mov    0x8(%rdx),%rdi
   0x7f4051413c69:	mov    (%rdx),%rbp
   0x7f4051413c6c:	callq  0x7f40514296f0 <g_type_is_a>
   0x7f4051413c71:	test   %eax,%eax
   0x7f4051413c73:	jne    0x7f4051413c88
   0x7f4051413c75:	mov    0x8(%rsp),%rbx
   0x7f4051413c7a:	mov    0x10(%rsp),%rbp