--- a/src/hotspot/cpu/aarch64/macroAssembler_aarch64.hpp	Wed Jun 13 06:35:04 2018 +0200
+++ b/src/hotspot/cpu/aarch64/macroAssembler_aarch64.hpp	Wed Jun 13 10:01:53 2018 +0200
@@ -979,6 +979,8 @@
   void addptr(const Address &dst, int32_t src);
   void cmpptr(Register src1, Address src2);
 
+  void cmpoop(Register obj1, Register obj2);
+
   // Various forms of CAS
 
   void cmpxchg_obj_header(Register oldv, Register newv, Register obj, Register tmp,