=> 0x7f8781f1b173 <_ZNSt15_List_node_base7_M_hookEPS_+19>:	mov    %rdi,(%rax)
   0x7f8781f1b176 <_ZNSt15_List_node_base7_M_hookEPS_+22>:	retq   
   0x7f8781f1b177:	nop
   0x7f8781f1b178:	nop
   0x7f8781f1b179:	nop
   0x7f8781f1b17a:	nop
   0x7f8781f1b17b:	nop
   0x7f8781f1b17c:	nop
   0x7f8781f1b17d:	nop
   0x7f8781f1b17e:	nop
   0x7f8781f1b17f:	nop
   0x7f8781f1b180 <_ZNSt15_List_node_base9_M_unhookEv>:	mov    (%rdi),%rax
   0x7f8781f1b183 <_ZNSt15_List_node_base9_M_unhookEv+3>:	mov    0x8(%rdi),%rdx
   0x7f8781f1b187 <_ZNSt15_List_node_base9_M_unhookEv+7>:	mov    %rax,(%rdx)
   0x7f8781f1b18a <_ZNSt15_List_node_base9_M_unhookEv+10>:	mov    %rdx,0x8(%rax)
   0x7f8781f1b18e <_ZNSt15_List_node_base9_M_unhookEv+14>:	retq