=> 0x7f987ccff26c <g_type_check_instance_cast+28>:	mov    (%rax),%rdi
   0x7f987ccff26f <g_type_check_instance_cast+31>:	cmp    $0x3fc,%rdi
   0x7f987ccff276 <g_type_check_instance_cast+38>:	ja     0x7f987ccff330 <g_type_check_instance_cast+224>
   0x7f987ccff27c <g_type_check_instance_cast+44>:	mov    %rdi,%rdx
   0x7f987ccff27f <g_type_check_instance_cast+47>:	lea    0x21f49a(%rip),%rax        # 0x7f987cf1e720
   0x7f987ccff286 <g_type_check_instance_cast+54>:	shr    $0x2,%rdx
   0x7f987ccff28a <g_type_check_instance_cast+58>:	mov    (%rax,%rdx,8),%r9
   0x7f987ccff28e <g_type_check_instance_cast+62>:	test   %r9,%r9
   0x7f987ccff291 <g_type_check_instance_cast+65>:	je     0x7f987ccff340 <g_type_check_instance_cast+240>
   0x7f987ccff297 <g_type_check_instance_cast+71>:	movzbl 0x16(%r9),%eax
   0x7f987ccff29c <g_type_check_instance_cast+76>:	and    $0x4,%eax
   0x7f987ccff29f <g_type_check_instance_cast+79>:	cmp    $0x1,%al
   0x7f987ccff2a1 <g_type_check_instance_cast+81>:	sbb    %edx,%edx
   0x7f987ccff2a3 <g_type_check_instance_cast+83>:	add    $0x1,%edx
   0x7f987ccff2a6 <g_type_check_instance_cast+86>:	cmp    $0x1,%al
   0x7f987ccff2a8 <g_type_check_instance_cast+88>:	sbb    %r10d,%r10d