=> 0x771f4f:	mov    0x0(%r13),%rsi
   0x771f53:	mov    $0x1,%ecx
   0x771f58:	add    %rbp,%rdi
   0x771f5b:	callq  0x770260
   0x771f60:	jmp    0x771f12
   0x771f62:	nopw   0x0(%rax,%rax,1)
   0x771f68:	cmp    $0x1,%eax
   0x771f6b:	je     0x771fa0
   0x771f6d:	movzbl 0x14(%rbx),%eax
   0x771f71:	sub    $0x4,%eax
   0x771f74:	cmp    $0x1,%al
   0x771f76:	ja     0x771f12
   0x771f78:	mov    %rbx,%rdi
   0x771f7b:	callq  0x70a5f0 <gc_zval_possible_root>
   0x771f80:	jmp    0x771f12
   0x771f82:	nopw   0x0(%rax,%rax,1)