=> 0x7f49e49b1952:	cmp    0x90(%rdi),%rdi
   0x7f49e49b1959:	sete   %al
   0x7f49e49b195c:	retq   
   0x7f49e49b195d:	nopl   (%rax)
   0x7f49e49b1960:	push   %r13
   0x7f49e49b1962:	push   %r12
   0x7f49e49b1964:	mov    %rsi,%r12
   0x7f49e49b1967:	push   %rbp
   0x7f49e49b1968:	push   %rbx
   0x7f49e49b1969:	sub    $0x8,%rsp
   0x7f49e49b196d:	test   %rdi,%rdi
   0x7f49e49b1970:	je     0x7f49e49b1a0e
   0x7f49e49b1976:	mov    0x48(%rdi),%rbx
   0x7f49e49b197a:	lea    0x48(%rdi),%r13
   0x7f49e49b197e:	test   %rbx,%rbx
   0x7f49e49b1981:	jne    0x7f49e49b1990