=> 0x7f016c537b8d <g_type_check_instance_cast+61>:	mov    (%rsi),%r13
   0x7f016c537b90 <g_type_check_instance_cast+64>:	mov    %r13,%rcx
   0x7f016c537b93 <g_type_check_instance_cast+67>:	and    $0xfffffffffffffffc,%rcx
   0x7f016c537b97 <g_type_check_instance_cast+71>:	cmp    $0x3fc,%r13
   0x7f016c537b9e <g_type_check_instance_cast+78>:	jbe    0x7f016c537ce0 <g_type_check_instance_cast+400>
   0x7f016c537ba4 <g_type_check_instance_cast+84>:	xor    %edx,%edx
   0x7f016c537ba6 <g_type_check_instance_cast+86>:	xor    %ebp,%ebp
   0x7f016c537ba8 <g_type_check_instance_cast+88>:	test   %rcx,%rcx
   0x7f016c537bab <g_type_check_instance_cast+91>:	je     0x7f016c537bc2 <g_type_check_instance_cast+114>
   0x7f016c537bad <g_type_check_instance_cast+93>:	movzbl 0x16(%rcx),%eax
   0x7f016c537bb1 <g_type_check_instance_cast+97>:	and    $0x4,%eax
   0x7f016c537bb4 <g_type_check_instance_cast+100>:	cmp    $0x1,%al
   0x7f016c537bb6 <g_type_check_instance_cast+102>:	sbb    %edx,%edx
   0x7f016c537bb8 <g_type_check_instance_cast+104>:	add    $0x1,%edx
   0x7f016c537bbb <g_type_check_instance_cast+107>:	cmp    $0x1,%al
   0x7f016c537bbd <g_type_check_instance_cast+109>:	sbb    %ebp,%ebp