=> 0x7f5669ac469c <g_type_check_instance_is_a+60>:	testb  $0x4,0x16(%rdi)
   0x7f5669ac46a0 <g_type_check_instance_is_a+64>:	je     0x7f5669ac4710 <g_type_check_instance_is_a+176>
   0x7f5669ac46a2 <g_type_check_instance_is_a+66>:	test   %rsi,%rsi
   0x7f5669ac46a5 <g_type_check_instance_is_a+69>:	je     0x7f5669ac4710 <g_type_check_instance_is_a+176>
   0x7f5669ac46a7 <g_type_check_instance_is_a+71>:	movzbl 0x14(%rsi),%eax
   0x7f5669ac46ab <g_type_check_instance_is_a+75>:	movzbl 0x14(%rdi),%edx
   0x7f5669ac46af <g_type_check_instance_is_a+79>:	cmp    %dl,%al
   0x7f5669ac46b1 <g_type_check_instance_is_a+81>:	ja     0x7f5669ac46c3 <g_type_check_instance_is_a+99>
   0x7f5669ac46b3 <g_type_check_instance_is_a+83>:	sub    %eax,%edx
   0x7f5669ac46b5 <g_type_check_instance_is_a+85>:	mov    0x48(%rsi),%rcx
   0x7f5669ac46b9 <g_type_check_instance_is_a+89>:	movslq %edx,%rdx
   0x7f5669ac46bc <g_type_check_instance_is_a+92>:	cmp    %rcx,0x48(%rdi,%rdx,8)
   0x7f5669ac46c1 <g_type_check_instance_is_a+97>:	je     0x7f5669ac4703 <g_type_check_instance_is_a+163>
   0x7f5669ac46c3 <g_type_check_instance_is_a+99>:	cltq   
   0x7f5669ac46c5 <g_type_check_instance_is_a+101>:	cmpq   $0x8,0x48(%rsi,%rax,8)
   0x7f5669ac46cb <g_type_check_instance_is_a+107>:	je     0x7f5669ac46f8 <g_type_check_instance_is_a+152>