Update clang to r86140.

22 files changed, 156 insertions, 110 deletions

diff --git a/include/clang/AST/ASTConsumer.h b/include/clang/AST/ASTConsumer.h
index af6bf30..53bb785 100644
--- a/include/clang/AST/ASTConsumer.h
+++ b/include/clang/AST/ASTConsumer.h
@@ -38,17 +38,17 @@ public:
   virtual ~ASTConsumer() {}
 
   /// Initialize - This is called to initialize the consumer, providing the
-  /// ASTContext and the Action.
+  /// ASTContext.
   virtual void Initialize(ASTContext &Context) {}
 
   /// HandleTopLevelDecl - Handle the specified top-level declaration.  This is
-  ///  called by the parser to process every top-level Decl*. Note that D can
-  ///  be the head of a chain of Decls (e.g. for `int a, b` the chain will have
-  ///  two elements). Use Decl::getNextDeclarator() to walk the chain.
+  /// called by the parser to process every top-level Decl*. Note that D can be
+  /// the head of a chain of Decls (e.g. for `int a, b` the chain will have two
+  /// elements). Use Decl::getNextDeclarator() to walk the chain.
   virtual void HandleTopLevelDecl(DeclGroupRef D);
 
   /// HandleTranslationUnit - This method is called when the ASTs for entire
-  ///  translation unit have been parsed.
+  /// translation unit have been parsed.
   virtual void HandleTranslationUnit(ASTContext &Ctx) {}
 
   /// HandleTagDeclDefinition - This callback is invoked each time a TagDecl
@@ -57,9 +57,9 @@ public:
   /// can be defined in declspecs).
   virtual void HandleTagDeclDefinition(TagDecl *D) {}
 
-  /// \brief Callback invoked at the end of a translation unit to
-  /// notify the consumer that the given tentative definition should
-  /// be completed.
+  /// CompleteTentativeDefinition - Callback invoked at the end of a translation
+  /// unit to notify the consumer that the given tentative definition should be
+  /// completed.
   ///
   /// The variable declaration itself will be a tentative
   /// definition. If it had an incomplete array type, its type will
@@ -69,8 +69,7 @@ public:
   virtual void CompleteTentativeDefinition(VarDecl *D) {}
 
   /// PrintStats - If desired, print any statistics.
-  virtual void PrintStats() {
-  }
+  virtual void PrintStats() {}
 
   // Support isa/cast/dyn_cast
   static bool classof(const ASTConsumer *) { return true; }
diff --git a/include/clang/Analysis/PathDiagnostic.h b/include/clang/Analysis/PathDiagnostic.h
index a08afe2..efc6677 100644
--- a/include/clang/Analysis/PathDiagnostic.h
+++ b/include/clang/Analysis/PathDiagnostic.h
@@ -43,8 +43,18 @@ class Preprocessor;
 class PathDiagnosticClient : public DiagnosticClient  {
 public:
   PathDiagnosticClient() {}
-  virtual ~PathDiagnosticClient() {}
-  virtual void SetPreprocessor(Preprocessor *PP) {}
+
+  virtual ~PathDiagnosticClient() {};
+  
+  virtual void
+  FlushDiagnostics(llvm::SmallVectorImpl<std::string> *FilesMade = 0) = 0;
+  
+  void FlushDiagnostics(llvm::SmallVectorImpl<std::string> &FilesMade) {
+    FlushDiagnostics(&FilesMade);
+  }
+  
+  virtual llvm::StringRef getName() const = 0;
+  
   virtual void HandleDiagnostic(Diagnostic::Level DiagLevel,
                                 const DiagnosticInfo &Info);
   virtual void HandlePathDiagnostic(const PathDiagnostic* D) = 0;
diff --git a/include/clang/Analysis/PathSensitive/AnalysisManager.h b/include/clang/Analysis/PathSensitive/AnalysisManager.h
index 1a64f56..4883346 100644
--- a/include/clang/Analysis/PathSensitive/AnalysisManager.h
+++ b/include/clang/Analysis/PathSensitive/AnalysisManager.h
@@ -66,6 +66,8 @@ public:
       VisualizeEGDot(vizdot), VisualizeEGUbi(vizubi), PurgeDead(purge),
       EagerlyAssume(eager), TrimGraph(trim) {}
   
+  ~AnalysisManager() { FlushDiagnostics(); }
+  
   void ClearContexts() {
     LocCtxMgr.clear();
     AnaCtxMgr.clear();
@@ -98,6 +100,11 @@ public:
   virtual PathDiagnosticClient *getPathDiagnosticClient() {
     return PD.get();
   }
+  
+  void FlushDiagnostics() {
+    if (PD.get())
+      PD->FlushDiagnostics();
+  }
 
   bool shouldVisualizeGraphviz() const { return VisualizeEGDot; }
 
diff --git a/include/clang/Analysis/PathSensitive/BugType.h b/include/clang/Analysis/PathSensitive/BugType.h
index 46b3edd..242b8e9 100644
--- a/include/clang/Analysis/PathSensitive/BugType.h
+++ b/include/clang/Analysis/PathSensitive/BugType.h
@@ -64,10 +64,10 @@ protected:
   const std::string desc;
 public:
   BuiltinBug(GRExprEngine *eng, const char* n, const char* d)
-    : BugType(n, "Logic errors"), Eng(*eng), desc(d) {}
+    : BugType(n, "Logic error"), Eng(*eng), desc(d) {}
 
   BuiltinBug(GRExprEngine *eng, const char* n)
-    : BugType(n, "Logic errors"), Eng(*eng), desc(n) {}
+    : BugType(n, "Logic error"), Eng(*eng), desc(n) {}
 
   const std::string &getDescription() const { return desc; }
 
diff --git a/include/clang/Analysis/PathSensitive/Checker.h b/include/clang/Analysis/PathSensitive/Checker.h
index 3bef08d..4fc0a61 100644
--- a/include/clang/Analysis/PathSensitive/Checker.h
+++ b/include/clang/Analysis/PathSensitive/Checker.h
@@ -116,12 +116,13 @@ private:
 
   void GR_VisitBind(ExplodedNodeSet &Dst,
                     GRStmtNodeBuilder &Builder, GRExprEngine &Eng,
-                    const Stmt *stmt, ExplodedNode *Pred, void *tag, 
+                    const Stmt *AssignE,
+                    const Stmt *StoreE, ExplodedNode *Pred, void *tag, 
                     SVal location, SVal val,
                     bool isPrevisit) {
     CheckerContext C(Dst, Builder, Eng, Pred, tag, isPrevisit);
     assert(isPrevisit && "Only previsit supported for now.");
-    PreVisitBind(C, stmt, location, val);
+    PreVisitBind(C, AssignE, StoreE, location, val);
   }
 
 public:
@@ -135,7 +136,8 @@ public:
     return Pred;
   }
   
-  virtual void PreVisitBind(CheckerContext &C, const Stmt *ST, 
+  virtual void PreVisitBind(CheckerContext &C,
+                            const Stmt *AssignE, const Stmt *StoreE, 
                             SVal location, SVal val) {}
 
   virtual ExplodedNode *CheckType(QualType T, ExplodedNode *Pred, 
diff --git a/include/clang/Analysis/PathSensitive/Checkers/UndefinedAssignmentChecker.h b/include/clang/Analysis/PathSensitive/Checkers/UndefinedAssignmentChecker.h
index 7fee501..13437eb 100644
--- a/include/clang/Analysis/PathSensitive/Checkers/UndefinedAssignmentChecker.h
+++ b/include/clang/Analysis/PathSensitive/Checkers/UndefinedAssignmentChecker.h
@@ -24,7 +24,8 @@ class UndefinedAssignmentChecker
 public:
   UndefinedAssignmentChecker() : BT(0) {}
   static void *getTag();
-  virtual void PreVisitBind(CheckerContext &C, const Stmt *S, SVal location,
+  virtual void PreVisitBind(CheckerContext &C, const Stmt *AssignE,
+                            const Stmt *StoreE, SVal location,
                             SVal val);
 };
 }
diff --git a/include/clang/Analysis/PathSensitive/GRExprEngine.h b/include/clang/Analysis/PathSensitive/GRExprEngine.h
index 2f2a11a..25e4703 100644
--- a/include/clang/Analysis/PathSensitive/GRExprEngine.h
+++ b/include/clang/Analysis/PathSensitive/GRExprEngine.h
@@ -412,7 +412,8 @@ protected:
   void CheckerVisit(Stmt *S, ExplodedNodeSet &Dst, ExplodedNodeSet &Src, 
                     bool isPrevisit);
   
-  void CheckerVisitBind(Stmt *S, ExplodedNodeSet &Dst, ExplodedNodeSet &Src, 
+  void CheckerVisitBind(const Stmt *AssignE, const Stmt *StoreE,
+                        ExplodedNodeSet &Dst, ExplodedNodeSet &Src, 
                         SVal location, SVal val, bool isPrevisit);
 
 
@@ -566,7 +567,8 @@ protected:
 
   /// EvalBind - Handle the semantics of binding a value to a specific location.
   ///  This method is used by EvalStore, VisitDeclStmt, and others.
-  void EvalBind(ExplodedNodeSet& Dst, Stmt* Ex, ExplodedNode* Pred,
+  void EvalBind(ExplodedNodeSet& Dst, Stmt *AssignE,
+                Stmt* StoreE, ExplodedNode* Pred,
                 const GRState* St, SVal location, SVal Val,
                 bool atDeclInit = false);
 
@@ -578,14 +580,10 @@ public:
                        const GRState* St, SVal location,
                        const void *tag = 0);
 
-
-  void EvalStore(ExplodedNodeSet& Dst, Expr* E, ExplodedNode* Pred, const GRState* St,
-                 SVal TargetLV, SVal Val, const void *tag = 0);
-
-  void EvalStore(ExplodedNodeSet& Dst, Expr* E, Expr* StoreE, ExplodedNode* Pred,
+  void EvalStore(ExplodedNodeSet& Dst, Expr* AssignE, Expr* StoreE,
+                 ExplodedNode* Pred,
                  const GRState* St, SVal TargetLV, SVal Val,
                  const void *tag = 0);
-
 };
 
 } // end clang namespace
diff --git a/include/clang/Basic/Diagnostic.h b/include/clang/Basic/Diagnostic.h
index 005aab3..77a2079 100644
--- a/include/clang/Basic/Diagnostic.h
+++ b/include/clang/Basic/Diagnostic.h
@@ -769,17 +769,28 @@ class DiagnosticClient {
 public:
   virtual ~DiagnosticClient();
 
-  /// setLangOptions - This is set by clients of diagnostics when they know the
-  /// language parameters of the diagnostics that may be sent through.  Note
-  /// that this can change over time if a DiagClient has multiple languages sent
-  /// through it.  It may also be set to null (e.g. when processing command line
-  /// options).
-  virtual void setLangOptions(const LangOptions *LO) {}
+  /// BeginSourceFile - Callback to inform the diagnostic client that processing
+  /// of a source file is beginning.
+  ///
+  /// Note that diagnostics may be emitted outside the processing of a source
+  /// file, for example during the parsing of command line options. However,
+  /// diagnostics with source range information are required to only be emitted
+  /// in between BeginSourceFile() and EndSourceFile().
+  ///
+  /// \arg LO - The language options for the source file being processed.
+  /// \arg PP - The preprocessor object being used for the source; this optional
+  /// and may not be present, for example when processing AST source files.
+  virtual void BeginSourceFile(const LangOptions &LangOpts) {}
+
+  /// EndSourceFile - Callback to inform the diagnostic client that processing
+  /// of a source file has ended. The diagnostic client should assume that any
+  /// objects made available via \see BeginSourceFile() are inaccessible.
+  virtual void EndSourceFile() {}
 
   /// IncludeInDiagnosticCounts - This method (whose default implementation
-  ///  returns true) indicates whether the diagnostics handled by this
-  ///  DiagnosticClient should be included in the number of diagnostics
-  ///  reported by Diagnostic.
+  /// returns true) indicates whether the diagnostics handled by this
+  /// DiagnosticClient should be included in the number of diagnostics reported
+  /// by Diagnostic.
   virtual bool IncludeInDiagnosticCounts() const;
 
   /// HandleDiagnostic - Handle this diagnostic, reporting it to the user or
diff --git a/include/clang/Basic/DiagnosticGroups.td b/include/clang/Basic/DiagnosticGroups.td
index c34bdc1..8cfdd40 100644
--- a/include/clang/Basic/DiagnosticGroups.td
+++ b/include/clang/Basic/DiagnosticGroups.td
@@ -23,6 +23,7 @@ def : DiagGroup<"address">;
 def : DiagGroup<"aggregate-return">;
 def : DiagGroup<"attributes">;
 def : DiagGroup<"bad-function-cast">;
+def : DiagGroup<"c++-compat">;
 def : DiagGroup<"cast-align">;
 def : DiagGroup<"cast-qual">;
 def : DiagGroup<"char-align">;
@@ -47,6 +48,7 @@ def : DiagGroup<"invalid-pch">;
 def : DiagGroup<"missing-braces">;
 def : DiagGroup<"missing-declarations">;
 def : DiagGroup<"missing-format-attribute">;
+def : DiagGroup<"missing-include-dirs">;
 def : DiagGroup<"missing-noreturn">;
 def MultiChar : DiagGroup<"multichar">;
 def : DiagGroup<"nested-externs">;
diff --git a/include/clang/Basic/DiagnosticParseKinds.td b/include/clang/Basic/DiagnosticParseKinds.td
index db8d580..e173cff 100644
--- a/include/clang/Basic/DiagnosticParseKinds.td
+++ b/include/clang/Basic/DiagnosticParseKinds.td
@@ -166,9 +166,6 @@ def err_use_of_tag_name_without_tag : Error<
   "use of tagged type %0 without '%1' tag">;
 def err_expected_ident_in_using : Error<
   "expected an identifier in using directive">;
-def err_using_decl_can_not_refer_to_template_spec : Error<
-  "using declaration can not refer to template specialization">;
-
 
 /// Objective-C parser diagnostics
 def err_objc_no_attributes_on_category : Error<
diff --git a/include/clang/Basic/DiagnosticSemaKinds.td b/include/clang/Basic/DiagnosticSemaKinds.td
index 99fddb5..2309908 100644
--- a/include/clang/Basic/DiagnosticSemaKinds.td
+++ b/include/clang/Basic/DiagnosticSemaKinds.td
@@ -107,8 +107,14 @@ def err_using_decl_nested_name_specifier_is_not_a_base_class : Error<
   "using declaration refers into '%0', which is not a base class of %1">;
 def err_using_decl_can_not_refer_to_class_member : Error<
   "using declaration can not refer to class member">;
- def err_using_decl_can_not_refer_to_namespace : Error<
+def err_using_decl_can_not_refer_to_namespace : Error<
   "using declaration can not refer to namespace">;
+def err_using_decl_constructor : Error<
+  "using declaration can not refer to a constructor">;
+def err_using_decl_destructor : Error<
+  "using declaration can not refer to a destructor">;
+def err_using_decl_template_id : Error<
+  "using declaration can not refer to a template specialization">;
 
 def err_invalid_thread : Error<
   "'__thread' is only allowed on variable declarations">;
@@ -512,6 +518,8 @@ def err_init_reference_member_uninitialized : Error<
   "reference member of type %0 uninitialized">;
 def note_uninit_reference_member : Note<
   "uninitialized reference member is here">;
+def warn_field_is_uninit : Warning<"field is uninitialized when used here">,
+  InGroup<DiagGroup<"uninitialized">>;
 
 // C++0x decltype
 def err_cannot_determine_declared_type_of_overloaded_function : Error<
@@ -1529,6 +1537,12 @@ def err_typecheck_vector_comparison : Error<
 def err_typecheck_assign_const : Error<"read-only variable is not assignable">;
 def err_stmtexpr_file_scope : Error<
   "statement expression not allowed at file scope">;
+def warn_mixed_sign_comparison : Warning<
+  "comparison of integers of different signs: %0 and %1">,
+  InGroup<DiagGroup<"sign-compare">>;
+def warn_mixed_sign_conditional : Warning<
+  "operands of ? are integers of different signs: %0 and %1">,
+  InGroup<DiagGroup<"sign-compare">>;
 
 def err_invalid_this_use : Error<
   "invalid use of 'this' outside of a nonstatic member function">;
diff --git a/include/clang/Frontend/ASTConsumers.h b/include/clang/Frontend/ASTConsumers.h
index f59a0a7..742813c 100644
--- a/include/clang/Frontend/ASTConsumers.h
+++ b/include/clang/Frontend/ASTConsumers.h
@@ -28,7 +28,6 @@ class ASTConsumer;
 class Diagnostic;
 class FileManager;
 class Preprocessor;
-class PreprocessorFactory;
 class CompileOptions;
 class LangOptions;
 
@@ -86,10 +85,11 @@ ASTConsumer *CreateBackendConsumer(BackendAction Action,
                                    llvm::raw_ostream *OS,
                                    llvm::LLVMContext& C);
 
-// HTML printer: uses the rewriter to convert source code to HTML with
-// syntax highlighting suitable for viewing in a web-browser.
-ASTConsumer* CreateHTMLPrinter(llvm::raw_ostream *OS, Diagnostic &D,
-                               Preprocessor *PP, PreprocessorFactory *PPF);
+/// CreateHTMLPrinter - Create an AST consumer which rewrites source code to
+/// HTML with syntax highlighting suitable for viewing in a web-browser.
+ASTConsumer *CreateHTMLPrinter(llvm::raw_ostream *OS, Preprocessor &PP,
+                               bool SyntaxHighlight = true,
+                               bool HighlightMacros = true);
 
 // PCH generator: generates a precompiled header file; this file can be
 // used later with the PCHReader (clang-cc option -include-pch)
diff --git a/include/clang/Frontend/AnalysisConsumer.h b/include/clang/Frontend/AnalysisConsumer.h
index 0e4b09b..34054a7 100644
--- a/include/clang/Frontend/AnalysisConsumer.h
+++ b/include/clang/Frontend/AnalysisConsumer.h
@@ -19,7 +19,6 @@ namespace clang {
 class ASTConsumer;
 class Diagnostic;
 class Preprocessor;
-class PreprocessorFactory;
 class LangOptions;
 
 /// Analysis - Set of available source code analyses.
@@ -69,9 +68,7 @@ struct AnalyzerOptions {
 /// CreateAnalysisConsumer - Creates an ASTConsumer to run various code
 /// analysis passes.  (The set of analyses run is controlled by command-line
 /// options.)
-ASTConsumer* CreateAnalysisConsumer(Diagnostic &diags, Preprocessor *pp,
-                                    PreprocessorFactory *ppf,
-                                    const LangOptions &lopts,
+ASTConsumer* CreateAnalysisConsumer(const Preprocessor &pp,
                                     const std::string &output,
                                     const AnalyzerOptions& Opts);
 
diff --git a/include/clang/Frontend/InitPreprocessor.h b/include/clang/Frontend/InitPreprocessor.h
index b29ee27..415acea 100644
--- a/include/clang/Frontend/InitPreprocessor.h
+++ b/include/clang/Frontend/InitPreprocessor.h
@@ -29,7 +29,16 @@ class PreprocessorInitOptions {
   std::vector<std::pair<std::string, bool/*isPTH*/> > Includes;
   std::vector<std::string> MacroIncludes;
 
+  unsigned UsePredefines : 1; /// Initialize the preprocessor with the compiler
+                              /// and target specific predefines.
+
 public:
+  PreprocessorInitOptions() : UsePredefines(true) {}
+
+  bool getUsePredefines() const { return UsePredefines; }
+  void setUsePredefines(bool Value) {
+    UsePredefines = Value;
+  }
 
   void addMacroDef(const std::string &Name) {
     Macros.push_back(std::make_pair(Name, false));
@@ -60,11 +69,10 @@ public:
 };
 
 /// InitializePreprocessor - Initialize the preprocessor getting it and the
-/// environment ready to process a single file. This returns true on error.
+/// environment ready to process a single file.
 ///
-bool InitializePreprocessor(Preprocessor &PP,
-                            const PreprocessorInitOptions& InitOptions,
-                            bool undef_macros);
+void InitializePreprocessor(Preprocessor &PP,
+                            const PreprocessorInitOptions& InitOptions);
 
 } // end namespace clang
 
diff --git a/include/clang/Frontend/PathDiagnosticClients.h b/include/clang/Frontend/PathDiagnosticClients.h
index 8cb6898..98831ba 100644
--- a/include/clang/Frontend/PathDiagnosticClients.h
+++ b/include/clang/Frontend/PathDiagnosticClients.h
@@ -22,33 +22,13 @@ namespace clang {
 
 class PathDiagnosticClient;
 class Preprocessor;
-class PreprocessorFactory;
-
-class PathDiagnosticClientFactory {
-public:
-  PathDiagnosticClientFactory() {}
-  virtual ~PathDiagnosticClientFactory() {}
-
-  virtual const char *getName() const = 0;
-
-  virtual PathDiagnosticClient*
-  createPathDiagnosticClient(llvm::SmallVectorImpl<std::string> *FilesMade) = 0;
-};
 
 PathDiagnosticClient*
-CreateHTMLDiagnosticClient(const std::string& prefix, Preprocessor* PP = 0,
-                           PreprocessorFactory* PPF = 0,
-                           llvm::SmallVectorImpl<std::string>* FilesMade = 0);
-
-PathDiagnosticClientFactory*
-CreateHTMLDiagnosticClientFactory(const std::string& prefix,
-                                  Preprocessor* PP = 0,
-                                  PreprocessorFactory* PPF = 0);
+CreateHTMLDiagnosticClient(const std::string& prefix, const Preprocessor &PP);
 
 PathDiagnosticClient*
-CreatePlistDiagnosticClient(const std::string& prefix, Preprocessor* PP,
-                            PreprocessorFactory* PPF,
-                            PathDiagnosticClientFactory *PF = 0);
+CreatePlistDiagnosticClient(const std::string& prefix, const Preprocessor &PP,
+                            PathDiagnosticClient *SubPD = 0);
 
 } // end clang namespace
 #endif
diff --git a/include/clang/Frontend/TextDiagnosticPrinter.h b/include/clang/Frontend/TextDiagnosticPrinter.h
index 98e5a75..3c5c626 100644
--- a/include/clang/Frontend/TextDiagnosticPrinter.h
+++ b/include/clang/Frontend/TextDiagnosticPrinter.h
@@ -39,8 +39,12 @@ class TextDiagnosticPrinter : public DiagnosticClient {
 public:
   TextDiagnosticPrinter(llvm::raw_ostream &os, const DiagnosticOptions &diags);
 
-  void setLangOptions(const LangOptions *LO) {
-    LangOpts = LO;
+  void BeginSourceFile(const LangOptions &LO) {
+    LangOpts = &LO;
+  }
+
+  void EndSourceFile() {
+    LangOpts = 0;
   }
 
   void PrintIncludeStack(SourceLocation Loc, const SourceManager &SM);
diff --git a/include/clang/Frontend/Utils.h b/include/clang/Frontend/Utils.h
index 9cbcf8e..3c67028 100644
--- a/include/clang/Frontend/Utils.h
+++ b/include/clang/Frontend/Utils.h
@@ -30,7 +30,6 @@ class Diagnostic;
 class ASTConsumer;
 class IdentifierTable;
 class SourceManager;
-class PreprocessorFactory;
 class LangOptions;
 class Decl;
 class Stmt;
diff --git a/include/clang/Lex/Preprocessor.h b/include/clang/Lex/Preprocessor.h
index 35960ff..2783716 100644
--- a/include/clang/Lex/Preprocessor.h
+++ b/include/clang/Lex/Preprocessor.h
@@ -96,7 +96,7 @@ class Preprocessor {
 
   /// Identifiers - This is mapping/lookup information for all identifiers in
   /// the program, including program keywords.
-  IdentifierTable Identifiers;
+  mutable IdentifierTable Identifiers;
 
   /// Selectors - This table contains all the selectors in the program. Unlike
   /// IdentifierTable above, this table *isn't* populated by the preprocessor.
@@ -296,12 +296,8 @@ public:
   /// pointers is preferred unless the identifier is already available as a
   /// string (this avoids allocation and copying of memory to construct an
   /// std::string).
-  IdentifierInfo *getIdentifierInfo(const char *NameStart,
-                                    const char *NameEnd) {
-    return &Identifiers.get(NameStart, NameEnd);
-  }
-  IdentifierInfo *getIdentifierInfo(const char *NameStr) {
-    return getIdentifierInfo(NameStr, NameStr+strlen(NameStr));
+  IdentifierInfo *getIdentifierInfo(llvm::StringRef Name) const {
+    return &Identifiers.get(Name);
   }
 
   /// AddPragmaHandler - Add the specified pragma handler to the preprocessor.
@@ -583,7 +579,7 @@ public:
   /// LookUpIdentifierInfo - Given a tok::identifier token, look up the
   /// identifier information for the token and install it into the token.
   IdentifierInfo *LookUpIdentifierInfo(Token &Identifier,
-                                       const char *BufPtr = 0);
+                                       const char *BufPtr = 0) const;
 
   /// HandleIdentifier - This callback is invoked when the lexer reads an
   /// identifier and has filled in the tokens IdentifierInfo member.  This
@@ -831,14 +827,6 @@ public:
   void HandleComment(SourceRange Comment);
 };
 
-/// PreprocessorFactory - A generic factory interface for lazily creating
-///  Preprocessor objects on-demand when they are needed.
-class PreprocessorFactory {
-public:
-  virtual ~PreprocessorFactory();
-  virtual Preprocessor* CreatePreprocessor() = 0;
-};
-
 /// \brief Abstract base class that describes a handler that will receive
 /// source ranges for each of the comments encountered in the source file.
 class CommentHandler {
diff --git a/include/clang/Parse/Action.h b/include/clang/Parse/Action.h
index 073365d..657a14f 100644
--- a/include/clang/Parse/Action.h
+++ b/include/clang/Parse/Action.h
@@ -1174,14 +1174,41 @@ public:
     return DeclPtrTy();
   }
 
-  /// ActOnUsingDirective - This is called when using-directive is parsed.
+  /// \brief Parsed a C++ using-declaration.
+  ///
+  /// This callback will be invoked when the parser has parsed a C++
+  /// using-declaration, e.g.,
+  ///
+  /// \code
+  /// namespace std {
+  ///   template<typename T, typename Alloc> class vector;
+  /// }
+  ///
+  /// using std::vector; // using-declaration here
+  /// \endcode
+  ///
+  /// \param CurScope the scope in which this using declaration was parsed.
+  ///
+  /// \param AS the currently-active access specifier.
+  ///
+  /// \param UsingLoc the location of the 'using' keyword.
+  ///
+  /// \param SS the nested-name-specifier that precedes the name.
+  ///
+  /// \param Name the name to which the using declaration refers.
+  ///
+  /// \param AttrList attributes applied to this using declaration, if any.
+  ///
+  /// \param IsTypeName whether this using declaration started with the 
+  /// 'typename' keyword. FIXME: This will eventually be split into a 
+  /// separate action.
+  ///
+  /// \returns a representation of the using declaration.
   virtual DeclPtrTy ActOnUsingDeclaration(Scope *CurScope,
                                           AccessSpecifier AS,
                                           SourceLocation UsingLoc,
                                           const CXXScopeSpec &SS,
-                                          SourceLocation IdentLoc,
-                                          IdentifierInfo *TargetName,
-                                          OverloadedOperatorKind Op,
+                                          UnqualifiedId &Name,
                                           AttributeList *AttrList,
                                           bool IsTypeName);
 
diff --git a/include/clang/Parse/DeclSpec.h b/include/clang/Parse/DeclSpec.h
index dccb8bc..d539508 100644
--- a/include/clang/Parse/DeclSpec.h
+++ b/include/clang/Parse/DeclSpec.h
@@ -131,6 +131,9 @@ private:
   // friend-specifier
   bool Friend_specified : 1;
 
+  // constexpr-specifier
+  bool Constexpr_specified : 1;
+
   /// TypeRep - This contains action-specific information about a specific TST.
   /// For example, for a typedef or struct, it might contain the declaration for
   /// these.
@@ -155,7 +158,7 @@ private:
   SourceLocation TSWLoc, TSCLoc, TSSLoc, TSTLoc;
   SourceLocation TQ_constLoc, TQ_restrictLoc, TQ_volatileLoc;
   SourceLocation FS_inlineLoc, FS_virtualLoc, FS_explicitLoc;
-  SourceLocation FriendLoc;
+  SourceLocation FriendLoc, ConstexprLoc;
 
   DeclSpec(const DeclSpec&);       // DO NOT IMPLEMENT
   void operator=(const DeclSpec&); // DO NOT IMPLEMENT
@@ -174,6 +177,7 @@ public:
       FS_virtual_specified(false),
       FS_explicit_specified(false),
       Friend_specified(false),
+      Constexpr_specified(false),
       TypeRep(0),
       AttrList(0),
       ProtocolQualifiers(0),
@@ -309,9 +313,15 @@ public:
   bool SetFriendSpec(SourceLocation Loc, const char *&PrevSpec,
                      unsigned &DiagID);
 
+  bool SetConstexprSpec(SourceLocation Loc, const char *&PrevSpec,
+                        unsigned &DiagID);
+
   bool isFriendSpecified() const { return Friend_specified; }
   SourceLocation getFriendSpecLoc() const { return FriendLoc; }
 
+  bool isConstexprSpecified() const { return Constexpr_specified; }
+  SourceLocation getConstexprSpecLoc() const { return ConstexprLoc; }
+
   /// AddAttributes - contatenates two attribute lists.
   /// The GCC attribute syntax allows for the following:
   ///
diff --git a/include/clang/Parse/Parser.h b/include/clang/Parse/Parser.h
index f34d469..1ca92ed 100644
--- a/include/clang/Parse/Parser.h
+++ b/include/clang/Parse/Parser.h
@@ -1321,13 +1321,6 @@ private:
                           UnqualifiedId &Result);
     
   //===--------------------------------------------------------------------===//
-  // C++ 13.5: Overloaded operators [over.oper]
-  // EndLoc, if non-NULL, is filled with the location of the last token of
-  // the ID.
-  OverloadedOperatorKind TryParseOperatorFunctionId(SourceLocation *EndLoc = 0);
-  TypeTy *ParseConversionFunctionId(SourceLocation *EndLoc = 0);
-
-  //===--------------------------------------------------------------------===//
   // C++ 14: Templates [temp]
   typedef llvm::SmallVector<DeclPtrTy, 4> TemplateParameterList;
 
diff --git a/include/clang/Rewrite/HTMLRewrite.h b/include/clang/Rewrite/HTMLRewrite.h
index f77e0c6..88caf85 100644
--- a/include/clang/Rewrite/HTMLRewrite.h
+++ b/include/clang/Rewrite/HTMLRewrite.h
@@ -23,7 +23,6 @@ namespace clang {
 class Rewriter;
 class RewriteBuffer;
 class Preprocessor;
-class PreprocessorFactory;
 
 namespace html {
 
@@ -68,14 +67,14 @@ namespace html {
 
   /// SyntaxHighlight - Relex the specified FileID and annotate the HTML with
   /// information about keywords, comments, etc.
-  void SyntaxHighlight(Rewriter &R, FileID FID, Preprocessor &PP);
+  void SyntaxHighlight(Rewriter &R, FileID FID, const Preprocessor &PP);
 
   /// HighlightMacros - This uses the macro table state from the end of the
   /// file, to reexpand macros and insert (into the HTML) information about the
   /// macro expansions.  This won't be perfectly perfect, but it will be
   /// reasonably close.
-  void HighlightMacros(Rewriter &R, FileID FID, Preprocessor &PP);
-  void HighlightMacros(Rewriter &R, FileID FID, PreprocessorFactory &PPF);
+  void HighlightMacros(Rewriter &R, FileID FID, const Preprocessor &PP);
+
 } // end html namespace
 } // end clang namespace