=> 0x405782:	cmp    %rsi,(%rdx)
   0x405785:	mov    $0x1,%al
   0x405787:	je     0x40574d
   0x405789:	mov    %rbx,%rdi
   0x40578c:	callq  0x403f20 <g_type_check_instance_is_a@plt>
   0x405791:	test   %eax,%eax
   0x405793:	setne  %al
   0x405796:	movzbl %al,%eax
   0x405799:	pop    %rbx
   0x40579a:	retq   
   0x40579b:	nopl   0x0(%rax,%rax,1)
   0x4057a0:	mov    %rbx,-0x20(%rsp)
   0x4057a5:	mov    %rbp,-0x18(%rsp)
   0x4057aa:	mov    %rdi,%rbx
   0x4057ad:	mov    %r12,-0x10(%rsp)
   0x4057b2:	mov    %r13,-0x8(%rsp)