=> 0x7fa5f92d7d6c <g_type_check_instance_is_a+60>:	testb  $0x4,0x16(%r8)
   0x7fa5f92d7d71 <g_type_check_instance_is_a+65>:	je     0x7fa5f92d7de0 <g_type_check_instance_is_a+176>
   0x7fa5f92d7d73 <g_type_check_instance_is_a+67>:	test   %rsi,%rsi
   0x7fa5f92d7d76 <g_type_check_instance_is_a+70>:	je     0x7fa5f92d7de0 <g_type_check_instance_is_a+176>
   0x7fa5f92d7d78 <g_type_check_instance_is_a+72>:	movzbl 0x14(%rsi),%eax
   0x7fa5f92d7d7c <g_type_check_instance_is_a+76>:	movzbl 0x14(%r8),%edx
   0x7fa5f92d7d81 <g_type_check_instance_is_a+81>:	cmp    %dl,%al
   0x7fa5f92d7d83 <g_type_check_instance_is_a+83>:	ja     0x7fa5f92d7d95 <g_type_check_instance_is_a+101>
   0x7fa5f92d7d85 <g_type_check_instance_is_a+85>:	sub    %eax,%edx
   0x7fa5f92d7d87 <g_type_check_instance_is_a+87>:	mov    0x48(%rsi),%rdi
   0x7fa5f92d7d8b <g_type_check_instance_is_a+91>:	movslq %edx,%rdx
   0x7fa5f92d7d8e <g_type_check_instance_is_a+94>:	cmp    %rdi,0x48(%r8,%rdx,8)
   0x7fa5f92d7d93 <g_type_check_instance_is_a+99>:	je     0x7fa5f92d7dd2 <g_type_check_instance_is_a+162>
   0x7fa5f92d7d95 <g_type_check_instance_is_a+101>:	cltq   
   0x7fa5f92d7d97 <g_type_check_instance_is_a+103>:	cmpq   $0x8,0x48(%rsi,%rax,8)
   0x7fa5f92d7d9d <g_type_check_instance_is_a+109>:	je     0x7fa5f92d7de8 <g_type_check_instance_is_a+184>