1 files changed, 6 insertions, 0 deletions
diff --git a/include/clang/AST/DeclCXX.h b/include/clang/AST/DeclCXX.h
index 7267afdc7f..d321d19068 100644
--- a/include/clang/AST/DeclCXX.h
+++ b/include/clang/AST/DeclCXX.h
@@ -458,6 +458,9 @@ class CXXRecordDecl : public RecordDecl {
     /// \brief Whether we are currently parsing base specifiers.
     unsigned IsParsingBaseSpecifiers : 1;
 
+    /// \brief A hash of parts of the class to help in ODR checking.
+    unsigned ODRHash;
+
     /// \brief The number of base class specifiers in Bases.
     unsigned NumBases;
 
@@ -703,6 +706,9 @@ public:
     return data().IsParsingBaseSpecifiers;
   }
 
+  void computeODRHash();
+  unsigned getODRHash() const { return data().ODRHash; }
+
   /// \brief Sets the base classes of this struct or class.
   void setBases(CXXBaseSpecifier const * const *Bases, unsigned NumBases);