=> 0x7f38128b2e8c <g_type_check_instance_cast+28>:	mov    (%rax),%rbp
   0x7f38128b2e8f <g_type_check_instance_cast+31>:	cmp    $0x3fc,%rbp
   0x7f38128b2e96 <g_type_check_instance_cast+38>:	ja     0x7f38128b2f30 <g_type_check_instance_cast+192>
   0x7f38128b2e9c <g_type_check_instance_cast+44>:	mov    %rbp,%rdx
   0x7f38128b2e9f <g_type_check_instance_cast+47>:	lea    0x21d83a(%rip),%rax        # 0x7f3812ad06e0
   0x7f38128b2ea6 <g_type_check_instance_cast+54>:	shr    $0x2,%rdx
   0x7f38128b2eaa <g_type_check_instance_cast+58>:	mov    (%rax,%rdx,8),%r8
   0x7f38128b2eae <g_type_check_instance_cast+62>:	test   %r8,%r8
   0x7f38128b2eb1 <g_type_check_instance_cast+65>:	je     0x7f38128b2f40 <g_type_check_instance_cast+208>
   0x7f38128b2eb7 <g_type_check_instance_cast+71>:	movzbl 0x16(%r8),%eax
   0x7f38128b2ebc <g_type_check_instance_cast+76>:	and    $0x4,%eax
   0x7f38128b2ebf <g_type_check_instance_cast+79>:	cmp    $0x1,%al
   0x7f38128b2ec1 <g_type_check_instance_cast+81>:	sbb    %edx,%edx
   0x7f38128b2ec3 <g_type_check_instance_cast+83>:	add    $0x1,%edx
   0x7f38128b2ec6 <g_type_check_instance_cast+86>:	cmp    $0x1,%al
   0x7f38128b2ec8 <g_type_check_instance_cast+88>:	sbb    %edi,%edi