src/hotspot/share/oops/oop.hpp

*** 311,320 ****
--- 311,324 ----
    // marks are forwarded to stack when object is locked
    inline bool     has_displaced_mark_raw() const;
    inline markWord displaced_mark_raw() const;
    inline void     set_displaced_mark_raw(markWord m);
  
+   // Checks if the mark word needs to be preserved
+   inline bool mark_must_be_preserved(markWord m) const;
+   inline bool mark_must_be_preserved_for_promotion_failure(markWord m) const;
+ 
    static bool has_klass_gap();
  
    // for code generation
    static int mark_offset_in_bytes()      { return offset_of(oopDesc, _mark); }
    static int klass_offset_in_bytes()     { return offset_of(oopDesc, _metadata._klass); }