=> 0x7f3736b6c88d <free+29>:	mov    -0x8(%rdi),%rsi
   0x7f3736b6c891 <free+33>:	lea    -0x10(%rdi),%r8
   0x7f3736b6c895 <free+37>:	test   $0x2,%sil
   0x7f3736b6c899 <free+41>:	jne    0x7f3736b6c908 <free+152>
   0x7f3736b6c89b <free+43>:	and    $0x4,%esi
   0x7f3736b6c89e <free+46>:	lea    0x31291b(%rip),%rbx        # 0x7f3736e7f1c0
   0x7f3736b6c8a5 <free+53>:	je     0x7f3736b6c8b3 <free+67>
   0x7f3736b6c8a7 <free+55>:	mov    %r8,%rax
   0x7f3736b6c8aa <free+58>:	and    $0xfffffffffc000000,%rax
   0x7f3736b6c8b0 <free+64>:	mov    (%rax),%rbx
   0x7f3736b6c8b3 <free+67>:	mov    $0x1,%esi
   0x7f3736b6c8b8 <free+72>:	xor    %eax,%eax
   0x7f3736b6c8ba <free+74>:	cmpl   $0x0,0x316927(%rip)        # 0x7f3736e831e8
   0x7f3736b6c8c1 <free+81>:	je     0x7f3736b6c8cf <free+95>
   0x7f3736b6c8c3 <free+83>:	lock cmpxchg %esi,(%rbx)
   0x7f3736b6c8c7 <free+87>:	jne    0x7f3736b6e800