src/hotspot/share/opto/valuetypenode.hpp

*** 104,113 ****
--- 104,116 ----
    }
  
    // Checks if the value type is loaded from memory and if so returns the oop
    Node* is_loaded(PhaseGVN* phase, ciValueKlass* vk = NULL, Node* base = NULL, int holder_offset = 0);
  
+   // Checks if the value type fields are all set to default values
+   bool is_default(PhaseGVN& gvn) const;
+ 
    const TypeValueTypePtr* value_type_ptr() const { return TypeValueTypePtr::make(TypePtr::BotPTR, value_klass()); }
    ciValueKlass* value_klass() const { return type()->is_valuetype()->value_klass(); }
  
  public:
    // Create uninitialized