=> 0x7f2cfbf78540 <g_type_check_instance_is_a+176>:	testb  $0x4,0x16(%rdx)
   0x7f2cfbf78544 <g_type_check_instance_is_a+180>:	je     0x7f2cfbf784fe <g_type_check_instance_is_a+110>
   0x7f2cfbf78546 <g_type_check_instance_is_a+182>:	movzbl 0x14(%rbp),%eax
   0x7f2cfbf7854a <g_type_check_instance_is_a+186>:	movzbl 0x14(%rdx),%ecx
   0x7f2cfbf7854e <g_type_check_instance_is_a+190>:	cmp    %cl,%al
   0x7f2cfbf78550 <g_type_check_instance_is_a+192>:	movzbl %al,%esi
   0x7f2cfbf78553 <g_type_check_instance_is_a+195>:	jbe    0x7f2cfbf78630 <g_type_check_instance_is_a+416>
   0x7f2cfbf78559 <g_type_check_instance_is_a+201>:	movslq %esi,%rsi
   0x7f2cfbf7855c <g_type_check_instance_is_a+204>:	xor    %eax,%eax
   0x7f2cfbf7855e <g_type_check_instance_is_a+206>:	cmpq   $0x8,0x48(%rbp,%rsi,8)
   0x7f2cfbf78564 <g_type_check_instance_is_a+212>:	jne    0x7f2cfbf78500 <g_type_check_instance_is_a+112>
   0x7f2cfbf78566 <g_type_check_instance_is_a+214>:	add    $0x38,%rdx
   0x7f2cfbf7856a <g_type_check_instance_is_a+218>:	lea    0x38(%rbp),%r14
   0x7f2cfbf7856e <g_type_check_instance_is_a+222>:	movabs $0xaaaaaaaaaaaaaaab,%r15
   0x7f2cfbf78578 <g_type_check_instance_is_a+232>:	mov    %rdx,%rdi
   0x7f2cfbf7857b <g_type_check_instance_is_a+235>:	mov    %rdx,0x8(%rsp)