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diff --git a/clang/lib/StaticAnalyzer/Core/SimpleConstraintManager.h b/clang/lib/StaticAnalyzer/Core/SimpleConstraintManager.h
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+++ b/clang/lib/StaticAnalyzer/Core/SimpleConstraintManager.h
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+//== SimpleConstraintManager.h ----------------------------------*- C++ -*--==//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//  Code shared between BasicConstraintManager and RangeConstraintManager.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_GR_SIMPLE_CONSTRAINT_MANAGER_H
+#define LLVM_CLANG_GR_SIMPLE_CONSTRAINT_MANAGER_H
+
+#include "clang/StaticAnalyzer/Core/PathSensitive/ConstraintManager.h"
+#include "clang/StaticAnalyzer/Core/PathSensitive/ProgramState.h"
+
+namespace clang {
+
+namespace ento {
+
+class SimpleConstraintManager : public ConstraintManager {
+  SubEngine &SU;
+public:
+  SimpleConstraintManager(SubEngine &subengine) : SU(subengine) {}
+  virtual ~SimpleConstraintManager();
+
+  //===------------------------------------------------------------------===//
+  // Common implementation for the interface provided by ConstraintManager.
+  //===------------------------------------------------------------------===//
+
+  ProgramStateRef assume(ProgramStateRef state, DefinedSVal Cond,
+                        bool Assumption);
+
+  ProgramStateRef assume(ProgramStateRef state, Loc Cond, bool Assumption);
+
+  ProgramStateRef assume(ProgramStateRef state, NonLoc Cond, bool Assumption);
+
+  ProgramStateRef assumeSymRel(ProgramStateRef state,
+                              const SymExpr *LHS,
+                              BinaryOperator::Opcode op,
+                              const llvm::APSInt& Int);
+
+protected:
+
+  //===------------------------------------------------------------------===//
+  // Interface that subclasses must implement.
+  //===------------------------------------------------------------------===//
+
+  // Each of these is of the form "$sym+Adj <> V", where "<>" is the comparison
+  // operation for the method being invoked.
+  virtual ProgramStateRef assumeSymNE(ProgramStateRef state, SymbolRef sym,
+                                     const llvm::APSInt& V,
+                                     const llvm::APSInt& Adjustment) = 0;
+
+  virtual ProgramStateRef assumeSymEQ(ProgramStateRef state, SymbolRef sym,
+                                     const llvm::APSInt& V,
+                                     const llvm::APSInt& Adjustment) = 0;
+
+  virtual ProgramStateRef assumeSymLT(ProgramStateRef state, SymbolRef sym,
+                                     const llvm::APSInt& V,
+                                     const llvm::APSInt& Adjustment) = 0;
+
+  virtual ProgramStateRef assumeSymGT(ProgramStateRef state, SymbolRef sym,
+                                     const llvm::APSInt& V,
+                                     const llvm::APSInt& Adjustment) = 0;
+
+  virtual ProgramStateRef assumeSymLE(ProgramStateRef state, SymbolRef sym,
+                                     const llvm::APSInt& V,
+                                     const llvm::APSInt& Adjustment) = 0;
+
+  virtual ProgramStateRef assumeSymGE(ProgramStateRef state, SymbolRef sym,
+                                     const llvm::APSInt& V,
+                                     const llvm::APSInt& Adjustment) = 0;
+
+  //===------------------------------------------------------------------===//
+  // Internal implementation.
+  //===------------------------------------------------------------------===//
+
+  bool canReasonAbout(SVal X) const;
+
+  ProgramStateRef assumeAux(ProgramStateRef state,
+                                Loc Cond,
+                                bool Assumption);
+
+  ProgramStateRef assumeAux(ProgramStateRef state,
+                                NonLoc Cond,
+                                bool Assumption);
+
+  ProgramStateRef assumeAuxForSymbol(ProgramStateRef State,
+                                         SymbolRef Sym,
+                                         bool Assumption);
+};
+
+} // end GR namespace
+
+} // end clang namespace
+
+#endif