=> 0x7f54ca9cc137 <g_type_check_instance_cast+71>:	movzbl 0x16(%r9),%eax
   0x7f54ca9cc13c <g_type_check_instance_cast+76>:	and    $0x4,%eax
   0x7f54ca9cc13f <g_type_check_instance_cast+79>:	cmp    $0x1,%al
   0x7f54ca9cc141 <g_type_check_instance_cast+81>:	sbb    %edx,%edx
   0x7f54ca9cc143 <g_type_check_instance_cast+83>:	add    $0x1,%edx
   0x7f54ca9cc146 <g_type_check_instance_cast+86>:	cmp    $0x1,%al
   0x7f54ca9cc148 <g_type_check_instance_cast+88>:	sbb    %r10d,%r10d
   0x7f54ca9cc14b <g_type_check_instance_cast+91>:	add    $0x1,%r10d
   0x7f54ca9cc14f <g_type_check_instance_cast+95>:	cmp    $0x3fc,%rsi
   0x7f54ca9cc156 <g_type_check_instance_cast+102>:	jbe    0x7f54ca9cc1f8 <g_type_check_instance_cast+264>
   0x7f54ca9cc15c <g_type_check_instance_cast+108>:	mov    %rsi,%r8
   0x7f54ca9cc15f <g_type_check_instance_cast+111>:	and    $0xfffffffffffffffc,%r8
   0x7f54ca9cc163 <g_type_check_instance_cast+115>:	test   %r8,%r8
   0x7f54ca9cc166 <g_type_check_instance_cast+118>:	jne    0x7f54ca9cc213 <g_type_check_instance_cast+291>
   0x7f54ca9cc16c <g_type_check_instance_cast+124>:	mov    %rdi,%rbp
   0x7f54ca9cc16f <g_type_check_instance_cast+127>:	test   %r10d,%r10d