=> 0x7f969d186d80 <g_type_check_instance_cast+16>:	mov    (%rdi),%rax
   0x7f969d186d83 <g_type_check_instance_cast+19>:	test   %rax,%rax
   0x7f969d186d86 <g_type_check_instance_cast+22>:	je     0x7f969d186f90 <g_type_check_instance_cast+544>
   0x7f969d186d8c <g_type_check_instance_cast+28>:	mov    (%rax),%rbp
   0x7f969d186d8f <g_type_check_instance_cast+31>:	mov    %rbp,%r8
   0x7f969d186d92 <g_type_check_instance_cast+34>:	and    $0xfffffffffffffffc,%r8
   0x7f969d186d96 <g_type_check_instance_cast+38>:	cmp    $0x3fc,%rbp
   0x7f969d186d9d <g_type_check_instance_cast+45>:	jbe    0x7f969d186f30 <g_type_check_instance_cast+448>
   0x7f969d186da3 <g_type_check_instance_cast+51>:	xor    %edx,%edx
   0x7f969d186da5 <g_type_check_instance_cast+53>:	xor    %ecx,%ecx
   0x7f969d186da7 <g_type_check_instance_cast+55>:	test   %r8,%r8
   0x7f969d186daa <g_type_check_instance_cast+58>:	je     0x7f969d186dc2 <g_type_check_instance_cast+82>
   0x7f969d186dac <g_type_check_instance_cast+60>:	movzbl 0x16(%r8),%eax
   0x7f969d186db1 <g_type_check_instance_cast+65>:	and    $0x4,%eax
   0x7f969d186db4 <g_type_check_instance_cast+68>:	cmp    $0x1,%al
   0x7f969d186db6 <g_type_check_instance_cast+70>:	sbb    %edx,%edx