r265518 - [modules] Continue factoring encoding of AST records out of ASTWriter.

Dmitry Polukhin via cfe-commits cfe-commits at lists.llvm.org
Wed Apr 6 03:04:34 PDT 2016


Richard,

I'm sorry but it seems that your patch broke many tests on on the bots so
I'm going to revert it (one example
http://lab.llvm.org:8011/builders/clang-cmake-aarch64-quick/builds/5984).

    Dmitry

On Wed, Apr 6, 2016 at 9:26 AM, Richard Smith via cfe-commits <
cfe-commits at lists.llvm.org> wrote:

> Author: rsmith
> Date: Wed Apr  6 01:26:08 2016
> New Revision: 265518
>
> URL: http://llvm.org/viewvc/llvm-project?rev=265518&view=rev
> Log:
> [modules] Continue factoring encoding of AST records out of ASTWriter.
>
> Modified:
>     cfe/trunk/include/clang/AST/DeclCXX.h
>     cfe/trunk/include/clang/Serialization/ASTWriter.h
>     cfe/trunk/lib/Serialization/ASTWriter.cpp
>     cfe/trunk/lib/Serialization/ASTWriterDecl.cpp
>     cfe/trunk/lib/Serialization/ASTWriterStmt.cpp
>     cfe/trunk/utils/TableGen/ClangAttrEmitter.cpp
>
> Modified: cfe/trunk/include/clang/AST/DeclCXX.h
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/AST/DeclCXX.h?rev=265518&r1=265517&r2=265518&view=diff
>
> ==============================================================================
> --- cfe/trunk/include/clang/AST/DeclCXX.h (original)
> +++ cfe/trunk/include/clang/AST/DeclCXX.h Wed Apr  6 01:26:08 2016
> @@ -1714,6 +1714,7 @@ public:
>
>    friend class ASTDeclReader;
>    friend class ASTDeclWriter;
> +  friend class ASTRecordWriter;
>    friend class ASTReader;
>    friend class ASTWriter;
>  };
>
> Modified: cfe/trunk/include/clang/Serialization/ASTWriter.h
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Serialization/ASTWriter.h?rev=265518&r1=265517&r2=265518&view=diff
>
> ==============================================================================
> --- cfe/trunk/include/clang/Serialization/ASTWriter.h (original)
> +++ cfe/trunk/include/clang/Serialization/ASTWriter.h Wed Apr  6 01:26:08
> 2016
> @@ -90,6 +90,7 @@ public:
>
>    friend class ASTDeclWriter;
>    friend class ASTStmtWriter;
> +  friend class ASTTypeWriter;
>    friend class ASTRecordWriter;
>  private:
>    /// \brief Map that provides the ID numbers of each type within the
> @@ -391,14 +392,6 @@ private:
>    /// redeclaration chains.
>    llvm::DenseMap<const Decl *, const Decl *> FirstLocalDeclCache;
>
> -  /// \brief Statements that we've encountered while serializing a
> -  /// declaration or type.
> -  SmallVector<Stmt *, 16> StmtsToEmit;
> -
> -  /// \brief Statements collection to use for ASTWriter::AddStmt().
> -  /// It will point to StmtsToEmit unless it is overriden.
> -  SmallVector<Stmt *, 16> *CollectedStmts;
> -
>    /// \brief Mapping from SwitchCase statements to IDs.
>    llvm::DenseMap<SwitchCase *, unsigned> SwitchCaseIDs;
>
> @@ -555,7 +548,6 @@ private:
>
>    void WriteDeclAbbrevs();
>    void WriteDecl(ASTContext &Context, Decl *D);
> -  void AddFunctionDefinition(const FunctionDecl *FD, RecordDataImpl
> &Record);
>
>    uint64_t WriteASTCore(Sema &SemaRef,
>                          StringRef isysroot, const std::string &OutputFile,
> @@ -649,26 +641,6 @@ public:
>    /// \brief Determine the type ID of an already-emitted type.
>    serialization::TypeID getTypeID(QualType T) const;
>
> -  /// \brief Emits a reference to a declarator info.
> -  void AddTypeSourceInfo(TypeSourceInfo *TInfo, RecordDataImpl &Record);
> -
> -  /// \brief Emits a type with source-location information.
> -  void AddTypeLoc(TypeLoc TL, RecordDataImpl &Record);
> -
> -  /// \brief Emits a template argument location info.
> -  void AddTemplateArgumentLocInfo(TemplateArgument::ArgKind Kind,
> -                                  const TemplateArgumentLocInfo &Arg,
> -                                  RecordDataImpl &Record);
> -
> -  /// \brief Emits a template argument location.
> -  void AddTemplateArgumentLoc(const TemplateArgumentLoc &Arg,
> -                              RecordDataImpl &Record);
> -
> -  /// \brief Emits an AST template argument list info.
> -  void AddASTTemplateArgumentListInfo(
> -                          const ASTTemplateArgumentListInfo
> *ASTTemplArgList,
> -                          RecordDataImpl &Record);
> -
>    /// \brief Find the first local declaration of a given local
> redeclarable
>    /// decl.
>    const Decl *getFirstLocalDecl(const Decl *D);
> @@ -684,59 +656,26 @@ public:
>    /// declaration.
>    serialization::DeclID getDeclID(const Decl *D);
>
> -  void AddAttributes(ArrayRef<const Attr*> Attrs, RecordDataImpl &Record);
> -
>    /// \brief Emit a declaration name.
>    void AddDeclarationName(DeclarationName Name, RecordDataImpl &Record);
> -  void AddDeclarationNameLoc(const DeclarationNameLoc &DNLoc,
> -                             DeclarationName Name, RecordDataImpl
> &Record);
> -  void AddDeclarationNameInfo(const DeclarationNameInfo &NameInfo,
> -                              RecordDataImpl &Record);
> -  unsigned getAnonymousDeclarationNumber(const NamedDecl *D);
>
> -  void AddQualifierInfo(const QualifierInfo &Info, RecordDataImpl
> &Record);
> +  unsigned getAnonymousDeclarationNumber(const NamedDecl *D);
>
>    /// \brief Emit a nested name specifier.
>    void AddNestedNameSpecifier(NestedNameSpecifier *NNS, RecordDataImpl
> &Record);
>
> -  /// \brief Emit a nested name specifier with source-location
> information.
> -  void AddNestedNameSpecifierLoc(NestedNameSpecifierLoc NNS,
> -                                 RecordDataImpl &Record);
> -
> -  /// \brief Emit a template name.
> -  void AddTemplateName(TemplateName Name, RecordDataImpl &Record);
> -
> -  /// \brief Emit a template argument.
> -  void AddTemplateArgument(const TemplateArgument &Arg, RecordDataImpl
> &Record);
> -
>    /// \brief Emit a template parameter list.
>    void AddTemplateParameterList(const TemplateParameterList
> *TemplateParams,
>                                  RecordDataImpl &Record);
>
> -  /// \brief Emit a template argument list.
> -  void AddTemplateArgumentList(const TemplateArgumentList *TemplateArgs,
> -                                RecordDataImpl &Record);
> -
>    /// \brief Emit a UnresolvedSet structure.
>    void AddUnresolvedSet(const ASTUnresolvedSet &Set, RecordDataImpl
> &Record);
>
> -  /// \brief Emit a C++ base specifier.
> -  void AddCXXBaseSpecifier(const CXXBaseSpecifier &Base,
> -                           RecordDataImpl &Record);
> -
>    /// \brief Emit the ID for a CXXCtorInitializer array and register the
> array
>    /// for later serialization.
>    void AddCXXCtorInitializersRef(ArrayRef<CXXCtorInitializer *> Inits,
>                                   RecordDataImpl &Record);
>
> -  /// \brief Emit a CXXCtorInitializer array.
> -  void AddCXXCtorInitializers(
> -                             const CXXCtorInitializer * const
> *CtorInitializers,
> -                             unsigned NumCtorInitializers,
> -                             RecordDataImpl &Record);
> -
> -  void AddCXXDefinitionData(const CXXRecordDecl *D, RecordDataImpl
> &Record);
> -
>    /// \brief Add a string to the given record.
>    void AddString(StringRef Str, RecordDataImpl &Record);
>
> @@ -771,22 +710,6 @@ public:
>    /// within the method pool/selector table.
>    void SetSelectorOffset(Selector Sel, uint32_t Offset);
>
> -  /// \brief Add the given statement or expression to the queue of
> -  /// statements to emit.
> -  ///
> -  /// This routine should be used when emitting types and declarations
> -  /// that have expressions as part of their formulation. Once the
> -  /// type or declaration has been written, call FlushStmts() to write
> -  /// the corresponding statements just after the type or
> -  /// declaration.
> -  void AddStmt(Stmt *S) {
> -      CollectedStmts->push_back(S);
> -  }
> -
> -  /// \brief Flush all of the statements and expressions that have
> -  /// been added to the queue via AddStmt().
> -  void FlushStmts();
> -
>    /// \brief Flush all of the C++ base specifier sets that have been added
>    /// via \c AddCXXBaseSpecifiersRef().
>    void FlushCXXBaseSpecifiers();
> @@ -798,7 +721,6 @@ public:
>    /// \brief Flush all pending records that are tacked onto the end of
>    /// decl and decl update records.
>    void FlushPendingAfterDecl() {
> -    FlushStmts();
>      FlushCXXBaseSpecifiers();
>      FlushCXXCtorInitializers();
>    }
> @@ -871,6 +793,15 @@ class ASTRecordWriter {
>    ASTWriter *Writer;
>    ASTWriter::RecordDataImpl *Record;
>
> +  /// \brief Statements that we've encountered while serializing a
> +  /// declaration or type.
> +  SmallVector<Stmt *, 16> StmtsToEmit;
> +
> +  /// \brief Flush all of the statements and expressions that have
> +  /// been added to the queue via AddStmt().
> +  void FlushStmts();
> +  void FlushSubStmts();
> +
>  public:
>    /// Construct a ASTRecordWriter that uses the default encoding scheme.
>    ASTRecordWriter(ASTWriter &Writer, ASTWriter::RecordDataImpl &Record)
> @@ -896,15 +827,37 @@ public:
>    uint64_t &operator[](size_t N) { return (*Record)[N]; }
>    /// @}
>
> -
> -  /// \brief Emit the record to the stream, and return its offset.
> +  /// \brief Emit the record to the stream, followed by its
> substatements, and
> +  /// return its offset.
>    // FIXME: Allow record producers to suggest Abbrevs.
>    uint64_t Emit(unsigned Code, unsigned Abbrev = 0) {
>      uint64_t Offset = Writer->Stream.GetCurrentBitNo();
> -    Writer->Stream.EmitRecord(Code, *Record);
> +    Writer->Stream.EmitRecord(Code, *Record, Abbrev);
> +    FlushStmts();
>      return Offset;
>    }
>
> +  /// \brief Emit the record to the stream, preceded by its substatements.
> +  uint64_t EmitStmt(unsigned Code, unsigned Abbrev = 0) {
> +    FlushSubStmts();
> +    Writer->Stream.EmitRecord(Code, *Record, Abbrev);
> +    return Writer->Stream.GetCurrentBitNo();
> +  }
> +
> +  /// \brief Add the given statement or expression to the queue of
> +  /// statements to emit.
> +  ///
> +  /// This routine should be used when emitting types and declarations
> +  /// that have expressions as part of their formulation. Once the
> +  /// type or declaration has been written, Emit() will write
> +  /// the corresponding statements just after the record.
> +  void AddStmt(Stmt *S) {
> +    StmtsToEmit.push_back(S);
> +  }
> +
> +  /// \brief Add a definition for the given function to the queue of
> statements
> +  /// to emit.
> +  void AddFunctionDefinition(const FunctionDecl *FD);
>
>    /// \brief Emit a source location.
>    void AddSourceLocation(SourceLocation Loc) {
> @@ -958,26 +911,21 @@ public:
>    }
>
>    /// \brief Emits a reference to a declarator info.
> -  void AddTypeSourceInfo(TypeSourceInfo *TInfo) {
> -    return Writer->AddTypeSourceInfo(TInfo, *Record);
> -  }
> +  void AddTypeSourceInfo(TypeSourceInfo *TInfo);
> +
> +  /// \brief Emits a type with source-location information.
> +  void AddTypeLoc(TypeLoc TL);
>
>    /// \brief Emits a template argument location info.
>    void AddTemplateArgumentLocInfo(TemplateArgument::ArgKind Kind,
> -                                  const TemplateArgumentLocInfo &Arg) {
> -    return Writer->AddTemplateArgumentLocInfo(Kind, Arg, *Record);
> -  }
> +                                  const TemplateArgumentLocInfo &Arg);
>
>    /// \brief Emits a template argument location.
> -  void AddTemplateArgumentLoc(const TemplateArgumentLoc &Arg) {
> -    return Writer->AddTemplateArgumentLoc(Arg, *Record);
> -  }
> +  void AddTemplateArgumentLoc(const TemplateArgumentLoc &Arg);
>
>    /// \brief Emits an AST template argument list info.
>    void AddASTTemplateArgumentListInfo(
> -      const ASTTemplateArgumentListInfo *ASTTemplArgList) {
> -    return Writer->AddASTTemplateArgumentListInfo(ASTTemplArgList,
> *Record);
> -  }
> +      const ASTTemplateArgumentListInfo *ASTTemplArgList);
>
>    /// \brief Emit a reference to a declaration.
>    void AddDeclRef(const Decl *D) {
> @@ -989,17 +937,10 @@ public:
>    }
>
>    void AddDeclarationNameLoc(const DeclarationNameLoc &DNLoc,
> -                             DeclarationName Name) {
> -    return Writer->AddDeclarationNameLoc(DNLoc, Name, *Record);
> -  }
> +                             DeclarationName Name);
> +  void AddDeclarationNameInfo(const DeclarationNameInfo &NameInfo);
>
> -  void AddDeclarationNameInfo(const DeclarationNameInfo &NameInfo) {
> -    return Writer->AddDeclarationNameInfo(NameInfo, *Record);
> -  }
> -
> -  void AddQualifierInfo(const QualifierInfo &Info) {
> -    return Writer->AddQualifierInfo(Info, *Record);
> -  }
> +  void AddQualifierInfo(const QualifierInfo &Info);
>
>    /// \brief Emit a nested name specifier.
>    void AddNestedNameSpecifier(NestedNameSpecifier *NNS) {
> @@ -1007,19 +948,13 @@ public:
>    }
>
>    /// \brief Emit a nested name specifier with source-location
> information.
> -  void AddNestedNameSpecifierLoc(NestedNameSpecifierLoc NNS) {
> -    return Writer->AddNestedNameSpecifierLoc(NNS, *Record);
> -  }
> +  void AddNestedNameSpecifierLoc(NestedNameSpecifierLoc NNS);
>
>    /// \brief Emit a template name.
> -  void AddTemplateName(TemplateName Name) {
> -    return Writer->AddTemplateName(Name, *Record);
> -  }
> +  void AddTemplateName(TemplateName Name);
>
>    /// \brief Emit a template argument.
> -  void AddTemplateArgument(const TemplateArgument &Arg) {
> -    return Writer->AddTemplateArgument(Arg, *Record);
> -  }
> +  void AddTemplateArgument(const TemplateArgument &Arg);
>
>    /// \brief Emit a template parameter list.
>    void AddTemplateParameterList(const TemplateParameterList
> *TemplateParams) {
> @@ -1027,9 +962,7 @@ public:
>    }
>
>    /// \brief Emit a template argument list.
> -  void AddTemplateArgumentList(const TemplateArgumentList *TemplateArgs) {
> -    return Writer->AddTemplateArgumentList(TemplateArgs, *Record);
> -  }
> +  void AddTemplateArgumentList(const TemplateArgumentList *TemplateArgs);
>
>    /// \brief Emit a UnresolvedSet structure.
>    void AddUnresolvedSet(const ASTUnresolvedSet &Set) {
> @@ -1037,9 +970,7 @@ public:
>    }
>
>    /// \brief Emit a C++ base specifier.
> -  void AddCXXBaseSpecifier(const CXXBaseSpecifier &Base) {
> -    return Writer->AddCXXBaseSpecifier(Base, *Record);
> -  }
> +  void AddCXXBaseSpecifier(const CXXBaseSpecifier &Base);
>
>    /// \brief Emit the ID for a CXXCtorInitializer array and register the
> array
>    /// for later serialization.
> @@ -1049,14 +980,9 @@ public:
>
>    /// \brief Emit a CXXCtorInitializer array.
>    void AddCXXCtorInitializers(const CXXCtorInitializer *const
> *CtorInitializers,
> -                              unsigned NumCtorInitializers) {
> -    return Writer->AddCXXCtorInitializers(CtorInitializers,
> NumCtorInitializers,
> -                                          *Record);
> -  }
> +                              unsigned NumCtorInitializers);
>
> -  void AddCXXDefinitionData(const CXXRecordDecl *D) {
> -    return Writer->AddCXXDefinitionData(D, *Record);
> -  }
> +  void AddCXXDefinitionData(const CXXRecordDecl *D);
>
>    /// \brief Emit a string.
>    void AddString(StringRef Str) {
> @@ -1074,9 +1000,7 @@ public:
>    }
>
>    /// \brief Emit a list of attributes.
> -  void AddAttributes(ArrayRef<const Attr*> Attrs) {
> -    return Writer->AddAttributes(Attrs, *Record);
> -  }
> +  void AddAttributes(ArrayRef<const Attr*> Attrs);
>  };
>
>  /// \brief AST and semantic-analysis consumer that generates a
>
> Modified: cfe/trunk/lib/Serialization/ASTWriter.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Serialization/ASTWriter.cpp?rev=265518&r1=265517&r2=265518&view=diff
>
> ==============================================================================
> --- cfe/trunk/lib/Serialization/ASTWriter.cpp (original)
> +++ cfe/trunk/lib/Serialization/ASTWriter.cpp Wed Apr  6 01:26:08 2016
> @@ -82,19 +82,42 @@ static StringRef bytes(const SmallVector
>  // Type serialization
>
>  //===----------------------------------------------------------------------===//
>
> -namespace {
> +namespace clang {
>    class ASTTypeWriter {
>      ASTWriter &Writer;
>      ASTRecordWriter Record;
>
> -  public:
>      /// \brief Type code that corresponds to the record generated.
>      TypeCode Code;
>      /// \brief Abbreviation to use for the record, if any.
>      unsigned AbbrevToUse;
>
> +  public:
>      ASTTypeWriter(ASTWriter &Writer, ASTWriter::RecordDataImpl &Record)
> -      : Writer(Writer), Record(Writer, Record), Code(TYPE_EXT_QUAL) { }
> +      : Writer(Writer), Record(Writer, Record), Code((TypeCode)0),
> AbbrevToUse(0) { }
> +
> +    uint64_t Emit() {
> +      return Record.Emit(Code, AbbrevToUse);
> +    }
> +
> +    void Visit(QualType T) {
> +      if (T.hasLocalNonFastQualifiers()) {
> +        Qualifiers Qs = T.getLocalQualifiers();
> +        Record.AddTypeRef(T.getLocalUnqualifiedType());
> +        Record.push_back(Qs.getAsOpaqueValue());
> +        Code = TYPE_EXT_QUAL;
> +        AbbrevToUse = Writer.TypeExtQualAbbrev;
> +      } else {
> +        switch (T->getTypeClass()) {
> +          // For all of the concrete, non-dependent types, call the
> +          // appropriate visitor function.
> +#define TYPE(Class, Base) \
> +        case Type::Class: Visit##Class##Type(cast<Class##Type>(T)); break;
> +#define ABSTRACT_TYPE(Class, Base)
> +#include "clang/AST/TypeNodes.def"
> +        }
> +      }
> +    }
>
>      void VisitArrayType(const ArrayType *T);
>      void VisitFunctionType(const FunctionType *T);
> @@ -104,7 +127,7 @@ namespace {
>  #define ABSTRACT_TYPE(Class, Base)
>  #include "clang/AST/TypeNodes.def"
>    };
> -} // end anonymous namespace
> +} // end namespace clang
>
>  void ASTTypeWriter::VisitBuiltinType(const BuiltinType *T) {
>    llvm_unreachable("Built-in types are never serialized");
> @@ -174,7 +197,7 @@ void ASTTypeWriter::VisitVariableArrayTy
>    VisitArrayType(T);
>    Record.AddSourceLocation(T->getLBracketLoc());
>    Record.AddSourceLocation(T->getRBracketLoc());
> -  Writer.AddStmt(T->getSizeExpr());
> +  Record.AddStmt(T->getSizeExpr());
>    Code = TYPE_VARIABLE_ARRAY;
>  }
>
> @@ -209,15 +232,15 @@ void ASTTypeWriter::VisitFunctionNoProto
>    Code = TYPE_FUNCTION_NO_PROTO;
>  }
>
> -static void addExceptionSpec(ASTWriter &Writer, const FunctionProtoType
> *T,
> -                             ASTRecordWriter Record) {
> +static void addExceptionSpec(const FunctionProtoType *T,
> +                             ASTRecordWriter &Record) {
>    Record.push_back(T->getExceptionSpecType());
>    if (T->getExceptionSpecType() == EST_Dynamic) {
>      Record.push_back(T->getNumExceptions());
>      for (unsigned I = 0, N = T->getNumExceptions(); I != N; ++I)
>        Record.AddTypeRef(T->getExceptionType(I));
>    } else if (T->getExceptionSpecType() == EST_ComputedNoexcept) {
> -    Writer.AddStmt(T->getNoexceptExpr());
> +    Record.AddStmt(T->getNoexceptExpr());
>    } else if (T->getExceptionSpecType() == EST_Uninstantiated) {
>      Record.AddDeclRef(T->getExceptionSpecDecl());
>      Record.AddDeclRef(T->getExceptionSpecTemplate());
> @@ -233,7 +256,7 @@ void ASTTypeWriter::VisitFunctionProtoTy
>    Record.push_back(T->hasTrailingReturn());
>    Record.push_back(T->getTypeQuals());
>    Record.push_back(static_cast<unsigned>(T->getRefQualifier()));
> -  addExceptionSpec(Writer, T, Record);
> +  addExceptionSpec(T, Record);
>
>    Record.push_back(T->getNumParams());
>    for (unsigned I = 0, N = T->getNumParams(); I != N; ++I)
> @@ -265,7 +288,7 @@ void ASTTypeWriter::VisitTypedefType(con
>  }
>
>  void ASTTypeWriter::VisitTypeOfExprType(const TypeOfExprType *T) {
> -  Writer.AddStmt(T->getUnderlyingExpr());
> +  Record.AddStmt(T->getUnderlyingExpr());
>    Code = TYPE_TYPEOF_EXPR;
>  }
>
> @@ -276,7 +299,7 @@ void ASTTypeWriter::VisitTypeOfType(cons
>
>  void ASTTypeWriter::VisitDecltypeType(const DecltypeType *T) {
>    Record.AddTypeRef(T->getUnderlyingType());
> -  Writer.AddStmt(T->getUnderlyingExpr());
> +  Record.AddStmt(T->getUnderlyingExpr());
>    Code = TYPE_DECLTYPE;
>  }
>
> @@ -353,7 +376,7 @@ ASTTypeWriter::VisitTemplateSpecializati
>  void
>  ASTTypeWriter::VisitDependentSizedArrayType(const DependentSizedArrayType
> *T) {
>    VisitArrayType(T);
> -  Writer.AddStmt(T->getSizeExpr());
> +  Record.AddStmt(T->getSizeExpr());
>    Record.AddSourceRange(T->getBracketsRange());
>    Code = TYPE_DEPENDENT_SIZED_ARRAY;
>  }
> @@ -461,12 +484,11 @@ ASTTypeWriter::VisitPipeType(const PipeT
>  namespace {
>
>  class TypeLocWriter : public TypeLocVisitor<TypeLocWriter> {
> -  ASTWriter &Writer;
> -  ASTRecordWriter Record;
> +  ASTRecordWriter &Record;
>
>  public:
> -  TypeLocWriter(ASTWriter &Writer, ASTWriter::RecordDataImpl &Record)
> -    : Writer(Writer), Record(Writer, Record) { }
> +  TypeLocWriter(ASTRecordWriter &Record)
> +    : Record(Record) { }
>
>  #define ABSTRACT_TYPELOC(CLASS, PARENT)
>  #define TYPELOC(CLASS, PARENT) \
> @@ -521,7 +543,7 @@ void TypeLocWriter::VisitArrayTypeLoc(Ar
>    Record.AddSourceLocation(TL.getRBracketLoc());
>    Record.push_back(TL.getSizeExpr() ? 1 : 0);
>    if (TL.getSizeExpr())
> -    Writer.AddStmt(TL.getSizeExpr());
> +    Record.AddStmt(TL.getSizeExpr());
>  }
>  void TypeLocWriter::VisitConstantArrayTypeLoc(ConstantArrayTypeLoc TL) {
>    VisitArrayTypeLoc(TL);
> @@ -605,7 +627,7 @@ void TypeLocWriter::VisitAttributedTypeL
>    if (TL.hasAttrExprOperand()) {
>      Expr *operand = TL.getAttrExprOperand();
>      Record.push_back(operand ? 1 : 0);
> -    if (operand) Writer.AddStmt(operand);
> +    if (operand) Record.AddStmt(operand);
>    } else if (TL.hasAttrEnumOperand()) {
>      Record.AddSourceLocation(TL.getAttrEnumOperandLoc());
>    }
> @@ -2743,43 +2765,23 @@ void ASTWriter::WriteType(QualType T) {
>
>    assert(Idx.getIndex() >= FirstTypeID && "Re-writing a type from a prior
> AST");
>
> -  // Record the offset for this type.
> -  unsigned Index = Idx.getIndex() - FirstTypeID;
> -  if (TypeOffsets.size() == Index)
> -    TypeOffsets.push_back(Stream.GetCurrentBitNo());
> -  else if (TypeOffsets.size() < Index) {
> -    TypeOffsets.resize(Index + 1);
> -    TypeOffsets[Index] = Stream.GetCurrentBitNo();
> -  }
> -
>    RecordData Record;
>
>    // Emit the type's representation.
>    ASTTypeWriter W(*this, Record);
> -  W.AbbrevToUse = 0;
> +  W.Visit(T);
> +  uint64_t Offset = W.Emit();
>
> -  if (T.hasLocalNonFastQualifiers()) {
> -    Qualifiers Qs = T.getLocalQualifiers();
> -    AddTypeRef(T.getLocalUnqualifiedType(), Record);
> -    Record.push_back(Qs.getAsOpaqueValue());
> -    W.Code = TYPE_EXT_QUAL;
> -    W.AbbrevToUse = TypeExtQualAbbrev;
> +  // Record the offset for this type.
> +  unsigned Index = Idx.getIndex() - FirstTypeID;
> +  if (TypeOffsets.size() == Index)
> +    TypeOffsets.push_back(Offset);
> +  else if (TypeOffsets.size() < Index) {
> +    TypeOffsets.resize(Index + 1);
> +    TypeOffsets[Index] = Offset;
>    } else {
> -    switch (T->getTypeClass()) {
> -      // For all of the concrete, non-dependent types, call the
> -      // appropriate visitor function.
> -#define TYPE(Class, Base) \
> -    case Type::Class: W.Visit##Class##Type(cast<Class##Type>(T)); break;
> -#define ABSTRACT_TYPE(Class, Base)
> -#include "clang/AST/TypeNodes.def"
> -    }
> +    llvm_unreachable("Types emitted in wrong order");
>    }
> -
> -  // Emit the serialized record.
> -  Stream.EmitRecord(W.Code, Record, W.AbbrevToUse);
> -
> -  // Flush any expressions that were written as part of this type.
> -  FlushStmts();
>  }
>
>
>  //===----------------------------------------------------------------------===//
> @@ -3989,12 +3991,12 @@ void ASTWriter::WriteModuleFileExtension
>
>  //===----------------------------------------------------------------------===//
>
>  /// \brief Emit the list of attributes to the specified record.
> -void ASTWriter::AddAttributes(ArrayRef<const Attr *> Attrs,
> -                              RecordDataImpl &Record) {
> +void ASTRecordWriter::AddAttributes(ArrayRef<const Attr *> Attrs) {
> +  auto &Record = *this;
>    Record.push_back(Attrs.size());
>    for (const auto *A : Attrs) {
>      Record.push_back(A->getKind()); // FIXME: stable encoding, target
> attrs
> -    AddSourceRange(A->getRange(), Record);
> +    Record.AddSourceRange(A->getRange());
>
>  #include "clang/Serialization/AttrPCHWrite.inc"
>
> @@ -4099,7 +4101,7 @@ ASTWriter::ASTWriter(
>        NextMacroID(FirstMacroID),
> FirstSubmoduleID(NUM_PREDEF_SUBMODULE_IDS),
>        NextSubmoduleID(FirstSubmoduleID),
>        FirstSelectorID(NUM_PREDEF_SELECTOR_IDS),
> NextSelectorID(FirstSelectorID),
> -      CollectedStmts(&StmtsToEmit), NumStatements(0), NumMacros(0),
> +      NumStatements(0), NumMacros(0),
>        NumLexicalDeclContexts(0), NumVisibleDeclContexts(0),
>        NextCXXBaseSpecifiersID(1), NextCXXCtorInitializersID(1),
>        TypeExtQualAbbrev(0), TypeFunctionProtoAbbrev(0),
> DeclParmVarAbbrev(0),
> @@ -4683,8 +4685,8 @@ void ASTWriter::WriteDeclUpdatesBlocks(R
>          break;
>
>        case UPD_CXX_INSTANTIATED_DEFAULT_ARGUMENT:
> -        AddStmt(const_cast<Expr*>(
> -                  cast<ParmVarDecl>(Update.getDecl())->getDefaultArg()));
> +        Record.AddStmt(const_cast<Expr *>(
> +            cast<ParmVarDecl>(Update.getDecl())->getDefaultArg()));
>          break;
>
>        case UPD_CXX_INSTANTIATED_CLASS_DEFINITION: {
> @@ -4738,7 +4740,6 @@ void ASTWriter::WriteDeclUpdatesBlocks(R
>
>        case UPD_CXX_RESOLVED_EXCEPTION_SPEC:
>          addExceptionSpec(
> -            *this,
>              cast<FunctionDecl>(D)->getType()->castAs<FunctionProtoType>(),
>              Record);
>          break;
> @@ -4775,7 +4776,7 @@ void ASTWriter::WriteDeclUpdatesBlocks(R
>        Record.push_back(UPD_CXX_ADDED_FUNCTION_DEFINITION);
>        Record.push_back(Def->isInlined());
>        Record.AddSourceLocation(Def->getInnerLocStart());
> -      AddFunctionDefinition(Def, Record.getRecordData());
> +      Record.AddFunctionDefinition(Def);
>      }
>
>      OffsetsRecord.push_back(GetDeclRef(D));
> @@ -4897,24 +4898,23 @@ void ASTWriter::AddCXXBaseSpecifiersRef(
>    Record.push_back(NextCXXBaseSpecifiersID++);
>  }
>
> -void ASTWriter::AddTemplateArgumentLocInfo(TemplateArgument::ArgKind Kind,
> -                                           const TemplateArgumentLocInfo
> &Arg,
> -                                           RecordDataImpl &Record) {
> +void ASTRecordWriter::AddTemplateArgumentLocInfo(
> +    TemplateArgument::ArgKind Kind, const TemplateArgumentLocInfo &Arg) {
>    switch (Kind) {
>    case TemplateArgument::Expression:
>      AddStmt(Arg.getAsExpr());
>      break;
>    case TemplateArgument::Type:
> -    AddTypeSourceInfo(Arg.getAsTypeSourceInfo(), Record);
> +    AddTypeSourceInfo(Arg.getAsTypeSourceInfo());
>      break;
>    case TemplateArgument::Template:
> -    AddNestedNameSpecifierLoc(Arg.getTemplateQualifierLoc(), Record);
> -    AddSourceLocation(Arg.getTemplateNameLoc(), Record);
> +    AddNestedNameSpecifierLoc(Arg.getTemplateQualifierLoc());
> +    AddSourceLocation(Arg.getTemplateNameLoc());
>      break;
>    case TemplateArgument::TemplateExpansion:
> -    AddNestedNameSpecifierLoc(Arg.getTemplateQualifierLoc(), Record);
> -    AddSourceLocation(Arg.getTemplateNameLoc(), Record);
> -    AddSourceLocation(Arg.getTemplateEllipsisLoc(), Record);
> +    AddNestedNameSpecifierLoc(Arg.getTemplateQualifierLoc());
> +    AddSourceLocation(Arg.getTemplateNameLoc());
> +    AddSourceLocation(Arg.getTemplateEllipsisLoc());
>      break;
>    case TemplateArgument::Null:
>    case TemplateArgument::Integral:
> @@ -4926,35 +4926,32 @@ void ASTWriter::AddTemplateArgumentLocIn
>    }
>  }
>
> -void ASTWriter::AddTemplateArgumentLoc(const TemplateArgumentLoc &Arg,
> -                                       RecordDataImpl &Record) {
> -  AddTemplateArgument(Arg.getArgument(), Record);
> +void ASTRecordWriter::AddTemplateArgumentLoc(const TemplateArgumentLoc
> &Arg) {
> +  AddTemplateArgument(Arg.getArgument());
>
>    if (Arg.getArgument().getKind() == TemplateArgument::Expression) {
>      bool InfoHasSameExpr
>        = Arg.getArgument().getAsExpr() == Arg.getLocInfo().getAsExpr();
> -    Record.push_back(InfoHasSameExpr);
> +    Record->push_back(InfoHasSameExpr);
>      if (InfoHasSameExpr)
>        return; // Avoid storing the same expr twice.
>    }
> -  AddTemplateArgumentLocInfo(Arg.getArgument().getKind(),
> Arg.getLocInfo(),
> -                             Record);
> +  AddTemplateArgumentLocInfo(Arg.getArgument().getKind(),
> Arg.getLocInfo());
>  }
>
> -void ASTWriter::AddTypeSourceInfo(TypeSourceInfo *TInfo,
> -                                  RecordDataImpl &Record) {
> +void ASTRecordWriter::AddTypeSourceInfo(TypeSourceInfo *TInfo) {
>    if (!TInfo) {
> -    AddTypeRef(QualType(), Record);
> +    AddTypeRef(QualType());
>      return;
>    }
>
> -  AddTypeLoc(TInfo->getTypeLoc(), Record);
> +  AddTypeLoc(TInfo->getTypeLoc());
>  }
>
> -void ASTWriter::AddTypeLoc(TypeLoc TL, RecordDataImpl &Record) {
> -  AddTypeRef(TL.getType(), Record);
> +void ASTRecordWriter::AddTypeLoc(TypeLoc TL) {
> +  AddTypeRef(TL.getType());
>
> -  TypeLocWriter TLW(*this, Record);
> +  TypeLocWriter TLW(*this);
>    for (; !TL.isNull(); TL = TL.getNextTypeLoc())
>      TLW.Visit(TL);
>  }
> @@ -5144,28 +5141,25 @@ unsigned ASTWriter::getAnonymousDeclarat
>    return It->second;
>  }
>
> -void ASTWriter::AddDeclarationNameLoc(const DeclarationNameLoc &DNLoc,
> -                                     DeclarationName Name, RecordDataImpl
> &Record) {
> +void ASTRecordWriter::AddDeclarationNameLoc(const DeclarationNameLoc
> &DNLoc,
> +                                            DeclarationName Name) {
>    switch (Name.getNameKind()) {
>    case DeclarationName::CXXConstructorName:
>    case DeclarationName::CXXDestructorName:
>    case DeclarationName::CXXConversionFunctionName:
> -    AddTypeSourceInfo(DNLoc.NamedType.TInfo, Record);
> +    AddTypeSourceInfo(DNLoc.NamedType.TInfo);
>      break;
>
>    case DeclarationName::CXXOperatorName:
> +    AddSourceLocation(SourceLocation::getFromRawEncoding(
> +        DNLoc.CXXOperatorName.BeginOpNameLoc));
>      AddSourceLocation(
> -
>  SourceLocation::getFromRawEncoding(DNLoc.CXXOperatorName.BeginOpNameLoc),
> -       Record);
> -    AddSourceLocation(
> -
> SourceLocation::getFromRawEncoding(DNLoc.CXXOperatorName.EndOpNameLoc),
> -        Record);
> +
> SourceLocation::getFromRawEncoding(DNLoc.CXXOperatorName.EndOpNameLoc));
>      break;
>
>    case DeclarationName::CXXLiteralOperatorName:
> -    AddSourceLocation(
> -
>  SourceLocation::getFromRawEncoding(DNLoc.CXXLiteralOperatorName.OpNameLoc),
> -     Record);
> +    AddSourceLocation(SourceLocation::getFromRawEncoding(
> +        DNLoc.CXXLiteralOperatorName.OpNameLoc));
>      break;
>
>    case DeclarationName::Identifier:
> @@ -5177,19 +5171,18 @@ void ASTWriter::AddDeclarationNameLoc(co
>    }
>  }
>
> -void ASTWriter::AddDeclarationNameInfo(const DeclarationNameInfo
> &NameInfo,
> -                                       RecordDataImpl &Record) {
> -  AddDeclarationName(NameInfo.getName(), Record);
> -  AddSourceLocation(NameInfo.getLoc(), Record);
> -  AddDeclarationNameLoc(NameInfo.getInfo(), NameInfo.getName(), Record);
> +void ASTRecordWriter::AddDeclarationNameInfo(
> +    const DeclarationNameInfo &NameInfo) {
> +  AddDeclarationName(NameInfo.getName());
> +  AddSourceLocation(NameInfo.getLoc());
> +  AddDeclarationNameLoc(NameInfo.getInfo(), NameInfo.getName());
>  }
>
> -void ASTWriter::AddQualifierInfo(const QualifierInfo &Info,
> -                                 RecordDataImpl &Record) {
> -  AddNestedNameSpecifierLoc(Info.QualifierLoc, Record);
> -  Record.push_back(Info.NumTemplParamLists);
> +void ASTRecordWriter::AddQualifierInfo(const QualifierInfo &Info) {
> +  AddNestedNameSpecifierLoc(Info.QualifierLoc);
> +  Record->push_back(Info.NumTemplParamLists);
>    for (unsigned i=0, e=Info.NumTemplParamLists; i != e; ++i)
> -    AddTemplateParameterList(Info.TemplParamLists[i], Record);
> +    AddTemplateParameterList(Info.TemplParamLists[i]);
>  }
>
>  void ASTWriter::AddNestedNameSpecifier(NestedNameSpecifier *NNS,
> @@ -5239,8 +5232,7 @@ void ASTWriter::AddNestedNameSpecifier(N
>    }
>  }
>
> -void ASTWriter::AddNestedNameSpecifierLoc(NestedNameSpecifierLoc NNS,
> -                                          RecordDataImpl &Record) {
> +void ASTRecordWriter::AddNestedNameSpecifierLoc(NestedNameSpecifierLoc
> NNS) {
>    // Nested name specifiers usually aren't too long. I think that 8 would
>    // typically accommodate the vast majority.
>    SmallVector<NestedNameSpecifierLoc , 8> NestedNames;
> @@ -5252,137 +5244,136 @@ void ASTWriter::AddNestedNameSpecifierLo
>      NNS = NNS.getPrefix();
>    }
>
> -  Record.push_back(NestedNames.size());
> +  Record->push_back(NestedNames.size());
>    while(!NestedNames.empty()) {
>      NNS = NestedNames.pop_back_val();
>      NestedNameSpecifier::SpecifierKind Kind
>        = NNS.getNestedNameSpecifier()->getKind();
> -    Record.push_back(Kind);
> +    Record->push_back(Kind);
>      switch (Kind) {
>      case NestedNameSpecifier::Identifier:
> -      AddIdentifierRef(NNS.getNestedNameSpecifier()->getAsIdentifier(),
> Record);
> -      AddSourceRange(NNS.getLocalSourceRange(), Record);
> +      AddIdentifierRef(NNS.getNestedNameSpecifier()->getAsIdentifier());
> +      AddSourceRange(NNS.getLocalSourceRange());
>        break;
>
>      case NestedNameSpecifier::Namespace:
> -      AddDeclRef(NNS.getNestedNameSpecifier()->getAsNamespace(), Record);
> -      AddSourceRange(NNS.getLocalSourceRange(), Record);
> +      AddDeclRef(NNS.getNestedNameSpecifier()->getAsNamespace());
> +      AddSourceRange(NNS.getLocalSourceRange());
>        break;
>
>      case NestedNameSpecifier::NamespaceAlias:
> -      AddDeclRef(NNS.getNestedNameSpecifier()->getAsNamespaceAlias(),
> Record);
> -      AddSourceRange(NNS.getLocalSourceRange(), Record);
> +      AddDeclRef(NNS.getNestedNameSpecifier()->getAsNamespaceAlias());
> +      AddSourceRange(NNS.getLocalSourceRange());
>        break;
>
>      case NestedNameSpecifier::TypeSpec:
>      case NestedNameSpecifier::TypeSpecWithTemplate:
> -      Record.push_back(Kind == NestedNameSpecifier::TypeSpecWithTemplate);
> -      AddTypeLoc(NNS.getTypeLoc(), Record);
> -      AddSourceLocation(NNS.getLocalSourceRange().getEnd(), Record);
> +      Record->push_back(Kind ==
> NestedNameSpecifier::TypeSpecWithTemplate);
> +      AddTypeLoc(NNS.getTypeLoc());
> +      AddSourceLocation(NNS.getLocalSourceRange().getEnd());
>        break;
>
>      case NestedNameSpecifier::Global:
> -      AddSourceLocation(NNS.getLocalSourceRange().getEnd(), Record);
> +      AddSourceLocation(NNS.getLocalSourceRange().getEnd());
>        break;
>
>      case NestedNameSpecifier::Super:
> -      AddDeclRef(NNS.getNestedNameSpecifier()->getAsRecordDecl(), Record);
> -      AddSourceRange(NNS.getLocalSourceRange(), Record);
> +      AddDeclRef(NNS.getNestedNameSpecifier()->getAsRecordDecl());
> +      AddSourceRange(NNS.getLocalSourceRange());
>        break;
>      }
>    }
>  }
>
> -void ASTWriter::AddTemplateName(TemplateName Name, RecordDataImpl
> &Record) {
> +void ASTRecordWriter::AddTemplateName(TemplateName Name) {
>    TemplateName::NameKind Kind = Name.getKind();
> -  Record.push_back(Kind);
> +  Record->push_back(Kind);
>    switch (Kind) {
>    case TemplateName::Template:
> -    AddDeclRef(Name.getAsTemplateDecl(), Record);
> +    AddDeclRef(Name.getAsTemplateDecl());
>      break;
>
>    case TemplateName::OverloadedTemplate: {
>      OverloadedTemplateStorage *OvT = Name.getAsOverloadedTemplate();
> -    Record.push_back(OvT->size());
> +    Record->push_back(OvT->size());
>      for (const auto &I : *OvT)
> -      AddDeclRef(I, Record);
> +      AddDeclRef(I);
>      break;
>    }
>
>    case TemplateName::QualifiedTemplate: {
>      QualifiedTemplateName *QualT = Name.getAsQualifiedTemplateName();
> -    AddNestedNameSpecifier(QualT->getQualifier(), Record);
> -    Record.push_back(QualT->hasTemplateKeyword());
> -    AddDeclRef(QualT->getTemplateDecl(), Record);
> +    AddNestedNameSpecifier(QualT->getQualifier());
> +    Record->push_back(QualT->hasTemplateKeyword());
> +    AddDeclRef(QualT->getTemplateDecl());
>      break;
>    }
>
>    case TemplateName::DependentTemplate: {
>      DependentTemplateName *DepT = Name.getAsDependentTemplateName();
> -    AddNestedNameSpecifier(DepT->getQualifier(), Record);
> -    Record.push_back(DepT->isIdentifier());
> +    AddNestedNameSpecifier(DepT->getQualifier());
> +    Record->push_back(DepT->isIdentifier());
>      if (DepT->isIdentifier())
> -      AddIdentifierRef(DepT->getIdentifier(), Record);
> +      AddIdentifierRef(DepT->getIdentifier());
>      else
> -      Record.push_back(DepT->getOperator());
> +      Record->push_back(DepT->getOperator());
>      break;
>    }
>
>    case TemplateName::SubstTemplateTemplateParm: {
>      SubstTemplateTemplateParmStorage *subst
>        = Name.getAsSubstTemplateTemplateParm();
> -    AddDeclRef(subst->getParameter(), Record);
> -    AddTemplateName(subst->getReplacement(), Record);
> +    AddDeclRef(subst->getParameter());
> +    AddTemplateName(subst->getReplacement());
>      break;
>    }
>
>    case TemplateName::SubstTemplateTemplateParmPack: {
>      SubstTemplateTemplateParmPackStorage *SubstPack
>        = Name.getAsSubstTemplateTemplateParmPack();
> -    AddDeclRef(SubstPack->getParameterPack(), Record);
> -    AddTemplateArgument(SubstPack->getArgumentPack(), Record);
> +    AddDeclRef(SubstPack->getParameterPack());
> +    AddTemplateArgument(SubstPack->getArgumentPack());
>      break;
>    }
>    }
>  }
>
> -void ASTWriter::AddTemplateArgument(const TemplateArgument &Arg,
> -                                    RecordDataImpl &Record) {
> -  Record.push_back(Arg.getKind());
> +void ASTRecordWriter::AddTemplateArgument(const TemplateArgument &Arg) {
> +  Record->push_back(Arg.getKind());
>    switch (Arg.getKind()) {
>    case TemplateArgument::Null:
>      break;
>    case TemplateArgument::Type:
> -    AddTypeRef(Arg.getAsType(), Record);
> +    AddTypeRef(Arg.getAsType());
>      break;
>    case TemplateArgument::Declaration:
> -    AddDeclRef(Arg.getAsDecl(), Record);
> -    AddTypeRef(Arg.getParamTypeForDecl(), Record);
> +    AddDeclRef(Arg.getAsDecl());
> +    AddTypeRef(Arg.getParamTypeForDecl());
>      break;
>    case TemplateArgument::NullPtr:
> -    AddTypeRef(Arg.getNullPtrType(), Record);
> +    AddTypeRef(Arg.getNullPtrType());
>      break;
>    case TemplateArgument::Integral:
> -    AddAPSInt(Arg.getAsIntegral(), Record);
> -    AddTypeRef(Arg.getIntegralType(), Record);
> +    AddAPSInt(Arg.getAsIntegral());
> +    AddTypeRef(Arg.getIntegralType());
>      break;
>    case TemplateArgument::Template:
> -    AddTemplateName(Arg.getAsTemplateOrTemplatePattern(), Record);
> +    AddTemplateName(Arg.getAsTemplateOrTemplatePattern());
>      break;
>    case TemplateArgument::TemplateExpansion:
> -    AddTemplateName(Arg.getAsTemplateOrTemplatePattern(), Record);
> +    AddTemplateName(Arg.getAsTemplateOrTemplatePattern());
>      if (Optional<unsigned> NumExpansions = Arg.getNumTemplateExpansions())
> -      Record.push_back(*NumExpansions + 1);
> +      Record->push_back(*NumExpansions + 1);
>      else
> -      Record.push_back(0);
> +      Record->push_back(0);
>      break;
>    case TemplateArgument::Expression:
>      AddStmt(Arg.getAsExpr());
>      break;
>    case TemplateArgument::Pack:
> -    Record.push_back(Arg.pack_size());
> +    Record->push_back(Arg.pack_size());
>      for (const auto &P : Arg.pack_elements())
> -      AddTemplateArgument(P, Record);
> +      AddTemplateArgument(P);
>      break;
>    }
>  }
> @@ -5400,25 +5391,23 @@ ASTWriter::AddTemplateParameterList(cons
>  }
>
>  /// \brief Emit a template argument list.
> -void
> -ASTWriter::AddTemplateArgumentList(const TemplateArgumentList
> *TemplateArgs,
> -                                   RecordDataImpl &Record) {
> +void ASTRecordWriter::AddTemplateArgumentList(
> +    const TemplateArgumentList *TemplateArgs) {
>    assert(TemplateArgs && "No TemplateArgs!");
> -  Record.push_back(TemplateArgs->size());
> +  Record->push_back(TemplateArgs->size());
>    for (int i=0, e = TemplateArgs->size(); i != e; ++i)
> -    AddTemplateArgument(TemplateArgs->get(i), Record);
> +    AddTemplateArgument(TemplateArgs->get(i));
>  }
>
> -void
> -ASTWriter::AddASTTemplateArgumentListInfo
> -(const ASTTemplateArgumentListInfo *ASTTemplArgList, RecordDataImpl
> &Record) {
> +void ASTRecordWriter::AddASTTemplateArgumentListInfo(
> +    const ASTTemplateArgumentListInfo *ASTTemplArgList) {
>    assert(ASTTemplArgList && "No ASTTemplArgList!");
> -  AddSourceLocation(ASTTemplArgList->LAngleLoc, Record);
> -  AddSourceLocation(ASTTemplArgList->RAngleLoc, Record);
> -  Record.push_back(ASTTemplArgList->NumTemplateArgs);
> +  AddSourceLocation(ASTTemplArgList->LAngleLoc);
> +  AddSourceLocation(ASTTemplArgList->RAngleLoc);
> +  Record->push_back(ASTTemplArgList->NumTemplateArgs);
>    const TemplateArgumentLoc *TemplArgs =
> ASTTemplArgList->getTemplateArgs();
>    for (int i=0, e = ASTTemplArgList->NumTemplateArgs; i != e; ++i)
> -    AddTemplateArgumentLoc(TemplArgs[i], Record);
> +    AddTemplateArgumentLoc(TemplArgs[i]);
>  }
>
>  void
> @@ -5431,17 +5420,16 @@ ASTWriter::AddUnresolvedSet(const ASTUnr
>    }
>  }
>
> -void ASTWriter::AddCXXBaseSpecifier(const CXXBaseSpecifier &Base,
> -                                    RecordDataImpl &Record) {
> -  Record.push_back(Base.isVirtual());
> -  Record.push_back(Base.isBaseOfClass());
> -  Record.push_back(Base.getAccessSpecifierAsWritten());
> -  Record.push_back(Base.getInheritConstructors());
> -  AddTypeSourceInfo(Base.getTypeSourceInfo(), Record);
> -  AddSourceRange(Base.getSourceRange(), Record);
> +// FIXME: Move this out of the main ASTRecordWriter interface.
> +void ASTRecordWriter::AddCXXBaseSpecifier(const CXXBaseSpecifier &Base) {
> +  Record->push_back(Base.isVirtual());
> +  Record->push_back(Base.isBaseOfClass());
> +  Record->push_back(Base.getAccessSpecifierAsWritten());
> +  Record->push_back(Base.getInheritConstructors());
> +  AddTypeSourceInfo(Base.getTypeSourceInfo());
> +  AddSourceRange(Base.getSourceRange());
>    AddSourceLocation(Base.isPackExpansion()? Base.getEllipsisLoc()
> -                                          : SourceLocation(),
> -                    Record);
> +                                          : SourceLocation());
>  }
>
>  void ASTWriter::FlushCXXBaseSpecifiers() {
> @@ -5449,26 +5437,30 @@ void ASTWriter::FlushCXXBaseSpecifiers()
>    unsigned N = CXXBaseSpecifiersToWrite.size();
>    for (unsigned I = 0; I != N; ++I) {
>      Record.clear();
> +
> +    const CXXBaseSpecifier *B = CXXBaseSpecifiersToWrite[I].Bases,
> +                        *BEnd = CXXBaseSpecifiersToWrite[I].BasesEnd;
> +
> +    // Write the base specifier set.
> +    ASTRecordWriter Writer(*this, Record);
> +    Writer.push_back(BEnd - B);
> +    for (; B != BEnd; ++B)
> +      Writer.AddCXXBaseSpecifier(*B);
> +    uint64_t Offset =
> Writer.Emit(serialization::DECL_CXX_BASE_SPECIFIERS);
>
>      // Record the offset of this base-specifier set.
> +    //
> +    // FIXME: We don't need an indirect lookup table for these; instead,
> write
> +    // the base specifier record prior to the decl record and store its
> offset
> +    // from the decl record rather than its ID.
>      unsigned Index = CXXBaseSpecifiersToWrite[I].ID - 1;
>      if (Index == CXXBaseSpecifiersOffsets.size())
> -      CXXBaseSpecifiersOffsets.push_back(Stream.GetCurrentBitNo());
> +      CXXBaseSpecifiersOffsets.push_back(Offset);
>      else {
>        if (Index > CXXBaseSpecifiersOffsets.size())
>          CXXBaseSpecifiersOffsets.resize(Index + 1);
> -      CXXBaseSpecifiersOffsets[Index] = Stream.GetCurrentBitNo();
> +      CXXBaseSpecifiersOffsets[Index] = Offset;
>      }
> -
> -    const CXXBaseSpecifier *B = CXXBaseSpecifiersToWrite[I].Bases,
> -                        *BEnd = CXXBaseSpecifiersToWrite[I].BasesEnd;
> -    Record.push_back(BEnd - B);
> -    for (; B != BEnd; ++B)
> -      AddCXXBaseSpecifier(*B, Record);
> -    Stream.EmitRecord(serialization::DECL_CXX_BASE_SPECIFIERS, Record);
> -
> -    // Flush any expressions that were written as part of the base
> specifiers.
> -    FlushStmts();
>    }
>
>    assert(N == CXXBaseSpecifiersToWrite.size() &&
> @@ -5476,40 +5468,40 @@ void ASTWriter::FlushCXXBaseSpecifiers()
>    CXXBaseSpecifiersToWrite.clear();
>  }
>
> -void ASTWriter::AddCXXCtorInitializers(
> -                             const CXXCtorInitializer * const
> *CtorInitializers,
> -                             unsigned NumCtorInitializers,
> -                             RecordDataImpl &Record) {
> -  Record.push_back(NumCtorInitializers);
> +// FIXME: Move this out of the main ASTRecordWriter interface.
> +void ASTRecordWriter::AddCXXCtorInitializers(
> +    const CXXCtorInitializer *const *CtorInitializers,
> +    unsigned NumCtorInitializers) {
> +  Record->push_back(NumCtorInitializers);
>    for (unsigned i=0; i != NumCtorInitializers; ++i) {
>      const CXXCtorInitializer *Init = CtorInitializers[i];
>
>      if (Init->isBaseInitializer()) {
> -      Record.push_back(CTOR_INITIALIZER_BASE);
> -      AddTypeSourceInfo(Init->getTypeSourceInfo(), Record);
> -      Record.push_back(Init->isBaseVirtual());
> +      Record->push_back(CTOR_INITIALIZER_BASE);
> +      AddTypeSourceInfo(Init->getTypeSourceInfo());
> +      Record->push_back(Init->isBaseVirtual());
>      } else if (Init->isDelegatingInitializer()) {
> -      Record.push_back(CTOR_INITIALIZER_DELEGATING);
> -      AddTypeSourceInfo(Init->getTypeSourceInfo(), Record);
> +      Record->push_back(CTOR_INITIALIZER_DELEGATING);
> +      AddTypeSourceInfo(Init->getTypeSourceInfo());
>      } else if (Init->isMemberInitializer()){
> -      Record.push_back(CTOR_INITIALIZER_MEMBER);
> -      AddDeclRef(Init->getMember(), Record);
> +      Record->push_back(CTOR_INITIALIZER_MEMBER);
> +      AddDeclRef(Init->getMember());
>      } else {
> -      Record.push_back(CTOR_INITIALIZER_INDIRECT_MEMBER);
> -      AddDeclRef(Init->getIndirectMember(), Record);
> +      Record->push_back(CTOR_INITIALIZER_INDIRECT_MEMBER);
> +      AddDeclRef(Init->getIndirectMember());
>      }
>
> -    AddSourceLocation(Init->getMemberLocation(), Record);
> +    AddSourceLocation(Init->getMemberLocation());
>      AddStmt(Init->getInit());
> -    AddSourceLocation(Init->getLParenLoc(), Record);
> -    AddSourceLocation(Init->getRParenLoc(), Record);
> -    Record.push_back(Init->isWritten());
> +    AddSourceLocation(Init->getLParenLoc());
> +    AddSourceLocation(Init->getRParenLoc());
> +    Record->push_back(Init->isWritten());
>      if (Init->isWritten()) {
> -      Record.push_back(Init->getSourceOrder());
> +      Record->push_back(Init->getSourceOrder());
>      } else {
> -      Record.push_back(Init->getNumArrayIndices());
> +      Record->push_back(Init->getNumArrayIndices());
>        for (unsigned i=0, e=Init->getNumArrayIndices(); i != e; ++i)
> -        AddDeclRef(Init->getArrayIndex(i), Record);
> +        AddDeclRef(Init->getArrayIndex(i));
>      }
>    }
>  }
> @@ -5522,21 +5514,19 @@ void ASTWriter::FlushCXXCtorInitializers
>    for (auto &Init : CXXCtorInitializersToWrite) {
>      Record.clear();
>
> +    ASTRecordWriter Writer(*this, Record);
> +    Writer.AddCXXCtorInitializers(Init.Inits.data(), Init.Inits.size());
> +    uint64_t Offset =
> Writer.Emit(serialization::DECL_CXX_CTOR_INITIALIZERS);
> +
>      // Record the offset of this mem-initializer list.
>      unsigned Index = Init.ID - 1;
>      if (Index == CXXCtorInitializersOffsets.size())
> -      CXXCtorInitializersOffsets.push_back(Stream.GetCurrentBitNo());
> +      CXXCtorInitializersOffsets.push_back(Offset);
>      else {
>        if (Index > CXXCtorInitializersOffsets.size())
>          CXXCtorInitializersOffsets.resize(Index + 1);
> -      CXXCtorInitializersOffsets[Index] = Stream.GetCurrentBitNo();
> +      CXXCtorInitializersOffsets[Index] = Offset;
>      }
> -
> -    AddCXXCtorInitializers(Init.Inits.data(), Init.Inits.size(), Record);
> -    Stream.EmitRecord(serialization::DECL_CXX_CTOR_INITIALIZERS, Record);
> -
> -    // Flush any expressions that were written as part of the
> initializers.
> -    FlushStmts();
>    }
>
>    assert(N == CXXCtorInitializersToWrite.size() &&
> @@ -5544,82 +5534,81 @@ void ASTWriter::FlushCXXCtorInitializers
>    CXXCtorInitializersToWrite.clear();
>  }
>
> -void ASTWriter::AddCXXDefinitionData(const CXXRecordDecl *D,
> RecordDataImpl &Record) {
> +void ASTRecordWriter::AddCXXDefinitionData(const CXXRecordDecl *D) {
>    auto &Data = D->data();
> -  Record.push_back(Data.IsLambda);
> -  Record.push_back(Data.UserDeclaredConstructor);
> -  Record.push_back(Data.UserDeclaredSpecialMembers);
> -  Record.push_back(Data.Aggregate);
> -  Record.push_back(Data.PlainOldData);
> -  Record.push_back(Data.Empty);
> -  Record.push_back(Data.Polymorphic);
> -  Record.push_back(Data.Abstract);
> -  Record.push_back(Data.IsStandardLayout);
> -  Record.push_back(Data.HasNoNonEmptyBases);
> -  Record.push_back(Data.HasPrivateFields);
> -  Record.push_back(Data.HasProtectedFields);
> -  Record.push_back(Data.HasPublicFields);
> -  Record.push_back(Data.HasMutableFields);
> -  Record.push_back(Data.HasVariantMembers);
> -  Record.push_back(Data.HasOnlyCMembers);
> -  Record.push_back(Data.HasInClassInitializer);
> -  Record.push_back(Data.HasUninitializedReferenceMember);
> -  Record.push_back(Data.HasUninitializedFields);
> -  Record.push_back(Data.NeedOverloadResolutionForMoveConstructor);
> -  Record.push_back(Data.NeedOverloadResolutionForMoveAssignment);
> -  Record.push_back(Data.NeedOverloadResolutionForDestructor);
> -  Record.push_back(Data.DefaultedMoveConstructorIsDeleted);
> -  Record.push_back(Data.DefaultedMoveAssignmentIsDeleted);
> -  Record.push_back(Data.DefaultedDestructorIsDeleted);
> -  Record.push_back(Data.HasTrivialSpecialMembers);
> -  Record.push_back(Data.DeclaredNonTrivialSpecialMembers);
> -  Record.push_back(Data.HasIrrelevantDestructor);
> -  Record.push_back(Data.HasConstexprNonCopyMoveConstructor);
> -  Record.push_back(Data.HasDefaultedDefaultConstructor);
> -  Record.push_back(Data.DefaultedDefaultConstructorIsConstexpr);
> -  Record.push_back(Data.HasConstexprDefaultConstructor);
> -  Record.push_back(Data.HasNonLiteralTypeFieldsOrBases);
> -  Record.push_back(Data.ComputedVisibleConversions);
> -  Record.push_back(Data.UserProvidedDefaultConstructor);
> -  Record.push_back(Data.DeclaredSpecialMembers);
> -  Record.push_back(Data.ImplicitCopyConstructorHasConstParam);
> -  Record.push_back(Data.ImplicitCopyAssignmentHasConstParam);
> -  Record.push_back(Data.HasDeclaredCopyConstructorWithConstParam);
> -  Record.push_back(Data.HasDeclaredCopyAssignmentWithConstParam);
> +  Record->push_back(Data.IsLambda);
> +  Record->push_back(Data.UserDeclaredConstructor);
> +  Record->push_back(Data.UserDeclaredSpecialMembers);
> +  Record->push_back(Data.Aggregate);
> +  Record->push_back(Data.PlainOldData);
> +  Record->push_back(Data.Empty);
> +  Record->push_back(Data.Polymorphic);
> +  Record->push_back(Data.Abstract);
> +  Record->push_back(Data.IsStandardLayout);
> +  Record->push_back(Data.HasNoNonEmptyBases);
> +  Record->push_back(Data.HasPrivateFields);
> +  Record->push_back(Data.HasProtectedFields);
> +  Record->push_back(Data.HasPublicFields);
> +  Record->push_back(Data.HasMutableFields);
> +  Record->push_back(Data.HasVariantMembers);
> +  Record->push_back(Data.HasOnlyCMembers);
> +  Record->push_back(Data.HasInClassInitializer);
> +  Record->push_back(Data.HasUninitializedReferenceMember);
> +  Record->push_back(Data.HasUninitializedFields);
> +  Record->push_back(Data.NeedOverloadResolutionForMoveConstructor);
> +  Record->push_back(Data.NeedOverloadResolutionForMoveAssignment);
> +  Record->push_back(Data.NeedOverloadResolutionForDestructor);
> +  Record->push_back(Data.DefaultedMoveConstructorIsDeleted);
> +  Record->push_back(Data.DefaultedMoveAssignmentIsDeleted);
> +  Record->push_back(Data.DefaultedDestructorIsDeleted);
> +  Record->push_back(Data.HasTrivialSpecialMembers);
> +  Record->push_back(Data.DeclaredNonTrivialSpecialMembers);
> +  Record->push_back(Data.HasIrrelevantDestructor);
> +  Record->push_back(Data.HasConstexprNonCopyMoveConstructor);
> +  Record->push_back(Data.HasDefaultedDefaultConstructor);
> +  Record->push_back(Data.DefaultedDefaultConstructorIsConstexpr);
> +  Record->push_back(Data.HasConstexprDefaultConstructor);
> +  Record->push_back(Data.HasNonLiteralTypeFieldsOrBases);
> +  Record->push_back(Data.ComputedVisibleConversions);
> +  Record->push_back(Data.UserProvidedDefaultConstructor);
> +  Record->push_back(Data.DeclaredSpecialMembers);
> +  Record->push_back(Data.ImplicitCopyConstructorHasConstParam);
> +  Record->push_back(Data.ImplicitCopyAssignmentHasConstParam);
> +  Record->push_back(Data.HasDeclaredCopyConstructorWithConstParam);
> +  Record->push_back(Data.HasDeclaredCopyAssignmentWithConstParam);
>    // IsLambda bit is already saved.
>
> -  Record.push_back(Data.NumBases);
> +  Record->push_back(Data.NumBases);
>    if (Data.NumBases > 0)
> -    AddCXXBaseSpecifiersRef(Data.getBases(), Data.getBases() +
> Data.NumBases,
> -                            Record);
> +    AddCXXBaseSpecifiersRef(Data.getBases(), Data.getBases() +
> Data.NumBases);
>
>    // FIXME: Make VBases lazily computed when needed to avoid storing them.
> -  Record.push_back(Data.NumVBases);
> +  Record->push_back(Data.NumVBases);
>    if (Data.NumVBases > 0)
> -    AddCXXBaseSpecifiersRef(Data.getVBases(), Data.getVBases() +
> Data.NumVBases,
> -                            Record);
> +    AddCXXBaseSpecifiersRef(Data.getVBases(),
> +                            Data.getVBases() + Data.NumVBases);
>
> -  AddUnresolvedSet(Data.Conversions.get(*Context), Record);
> -  AddUnresolvedSet(Data.VisibleConversions.get(*Context), Record);
> +  AddUnresolvedSet(Data.Conversions.get(*Writer->Context));
> +  AddUnresolvedSet(Data.VisibleConversions.get(*Writer->Context));
>    // Data.Definition is the owning decl, no need to write it.
> -  AddDeclRef(D->getFirstFriend(), Record);
> +  AddDeclRef(D->getFirstFriend());
>
>    // Add lambda-specific data.
>    if (Data.IsLambda) {
>      auto &Lambda = D->getLambdaData();
> -    Record.push_back(Lambda.Dependent);
> -    Record.push_back(Lambda.IsGenericLambda);
> -    Record.push_back(Lambda.CaptureDefault);
> -    Record.push_back(Lambda.NumCaptures);
> -    Record.push_back(Lambda.NumExplicitCaptures);
> -    Record.push_back(Lambda.ManglingNumber);
> -    AddDeclRef(Lambda.ContextDecl, Record);
> -    AddTypeSourceInfo(Lambda.MethodTyInfo, Record);
> +    Record->push_back(Lambda.Dependent);
> +    Record->push_back(Lambda.IsGenericLambda);
> +    Record->push_back(Lambda.CaptureDefault);
> +    Record->push_back(Lambda.NumCaptures);
> +    Record->push_back(Lambda.NumExplicitCaptures);
> +    Record->push_back(Lambda.ManglingNumber);
> +    AddDeclRef(Lambda.ContextDecl);
> +    AddTypeSourceInfo(Lambda.MethodTyInfo);
>      for (unsigned I = 0, N = Lambda.NumCaptures; I != N; ++I) {
>        const LambdaCapture &Capture = Lambda.Captures[I];
> -      AddSourceLocation(Capture.getLocation(), Record);
> -      Record.push_back(Capture.isImplicit());
> -      Record.push_back(Capture.getCaptureKind());
> +      AddSourceLocation(Capture.getLocation());
> +      Record->push_back(Capture.isImplicit());
> +      Record->push_back(Capture.getCaptureKind());
>        switch (Capture.getCaptureKind()) {
>        case LCK_StarThis:
>        case LCK_This:
> @@ -5629,10 +5618,9 @@ void ASTWriter::AddCXXDefinitionData(con
>        case LCK_ByRef:
>          VarDecl *Var =
>              Capture.capturesVariable() ? Capture.getCapturedVar() :
> nullptr;
> -        AddDeclRef(Var, Record);
> +        AddDeclRef(Var);
>          AddSourceLocation(Capture.isPackExpansion() ?
> Capture.getEllipsisLoc()
> -                                                    : SourceLocation(),
> -                          Record);
> +                                                    : SourceLocation());
>          break;
>        }
>      }
>
> Modified: cfe/trunk/lib/Serialization/ASTWriterDecl.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Serialization/ASTWriterDecl.cpp?rev=265518&r1=265517&r2=265518&view=diff
>
> ==============================================================================
> --- cfe/trunk/lib/Serialization/ASTWriterDecl.cpp (original)
> +++ cfe/trunk/lib/Serialization/ASTWriterDecl.cpp Wed Apr  6 01:26:08 2016
> @@ -171,17 +171,6 @@ namespace clang {
>        Record.AddSourceLocation(typeParams->getRAngleLoc());
>      }
>
> -    void AddFunctionDefinition(const FunctionDecl *FD) {
> -      assert(FD->doesThisDeclarationHaveABody());
> -      if (auto *CD = dyn_cast<CXXConstructorDecl>(FD)) {
> -        Record.push_back(CD->NumCtorInitializers);
> -        if (CD->NumCtorInitializers)
> -          Record.AddCXXCtorInitializersRef(
> -              llvm::makeArrayRef(CD->init_begin(), CD->init_end()));
> -      }
> -      Writer.AddStmt(FD->getBody());
> -    }
> -
>      /// Add to the record the first declaration from each module file that
>      /// provides a declaration of D. The intent is to provide a sufficient
>      /// set such that reloading this set will load all current
> redeclarations.
> @@ -293,7 +282,7 @@ void ASTDeclWriter::Visit(Decl *D) {
>    if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
>      Record.push_back(FD->doesThisDeclarationHaveABody());
>      if (FD->doesThisDeclarationHaveABody())
> -      AddFunctionDefinition(FD);
> +      Record.AddFunctionDefinition(FD);
>    }
>  }
>
> @@ -508,7 +497,7 @@ void ASTDeclWriter::VisitEnumConstantDec
>    VisitValueDecl(D);
>    Record.push_back(D->getInitExpr()? 1 : 0);
>    if (D->getInitExpr())
> -    Writer.AddStmt(D->getInitExpr());
> +    Record.AddStmt(D->getInitExpr());
>    Record.AddAPSInt(D->getInitVal());
>
>    Code = serialization::DECL_ENUM_CONSTANT;
> @@ -629,7 +618,7 @@ void ASTDeclWriter::VisitObjCMethodDecl(
>                        D->getSelfDecl() != nullptr || D->getCmdDecl() !=
> nullptr;
>    Record.push_back(HasBodyStuff);
>    if (HasBodyStuff) {
> -    Writer.AddStmt(D->getBody());
> +    Record.AddStmt(D->getBody());
>      Record.AddDeclRef(D->getSelfDecl());
>      Record.AddDeclRef(D->getCmdDecl());
>    }
> @@ -846,8 +835,8 @@ void ASTDeclWriter::VisitObjCPropertyImp
>    Record.AddDeclRef(D->getPropertyDecl());
>    Record.AddDeclRef(D->getPropertyIvarDecl());
>    Record.AddSourceLocation(D->getPropertyIvarDeclLoc());
> -  Writer.AddStmt(D->getGetterCXXConstructor());
> -  Writer.AddStmt(D->getSetterCXXAssignment());
> +  Record.AddStmt(D->getGetterCXXConstructor());
> +  Record.AddStmt(D->getSetterCXXAssignment());
>    Code = serialization::DECL_OBJC_PROPERTY_IMPL;
>  }
>
> @@ -863,7 +852,7 @@ void ASTDeclWriter::VisitFieldDecl(Field
>          QualType(static_cast<Type *>(D->InitStorage.getPointer()), 0));
>    } else {
>      Record.push_back(D->InitStorage.getInt() + 1);
> -    Writer.AddStmt(static_cast<Expr *>(D->InitStorage.getPointer()));
> +    Record.AddStmt(static_cast<Expr *>(D->InitStorage.getPointer()));
>    }
>    if (!D->getDeclName())
>      Record.AddDeclRef(Context.getInstantiatedFromUnnamedFieldDecl(D));
> @@ -922,7 +911,7 @@ void ASTDeclWriter::VisitVarDecl(VarDecl
>
>    if (D->getInit()) {
>      Record.push_back(!D->isInitKnownICE() ? 1 : (D->isInitICE() ? 3 : 2));
> -    Writer.AddStmt(D->getInit());
> +    Record.AddStmt(D->getInit());
>    } else {
>      Record.push_back(0);
>    }
> @@ -984,7 +973,7 @@ void ASTDeclWriter::VisitParmVarDecl(Par
>    Record.push_back(D->hasInheritedDefaultArg());
>    Record.push_back(D->hasUninstantiatedDefaultArg());
>    if (D->hasUninstantiatedDefaultArg())
> -    Writer.AddStmt(D->getUninstantiatedDefaultArg());
> +    Record.AddStmt(D->getUninstantiatedDefaultArg());
>    Code = serialization::DECL_PARM_VAR;
>
>    assert(!D->isARCPseudoStrong()); // can be true of ImplicitParamDecl
> @@ -1023,7 +1012,7 @@ void ASTDeclWriter::VisitParmVarDecl(Par
>
>  void ASTDeclWriter::VisitFileScopeAsmDecl(FileScopeAsmDecl *D) {
>    VisitDecl(D);
> -  Writer.AddStmt(D->getAsmString());
> +  Record.AddStmt(D->getAsmString());
>    Record.AddSourceLocation(D->getRParenLoc());
>    Code = serialization::DECL_FILE_SCOPE_ASM;
>  }
> @@ -1035,7 +1024,7 @@ void ASTDeclWriter::VisitEmptyDecl(Empty
>
>  void ASTDeclWriter::VisitBlockDecl(BlockDecl *D) {
>    VisitDecl(D);
> -  Writer.AddStmt(D->getBody());
> +  Record.AddStmt(D->getBody());
>    Record.AddTypeSourceInfo(D->getSignatureAsWritten());
>    Record.push_back(D->param_size());
>    for (FunctionDecl::param_iterator P = D->param_begin(), PEnd =
> D->param_end();
> @@ -1055,7 +1044,7 @@ void ASTDeclWriter::VisitBlockDecl(Block
>      if (capture.hasCopyExpr()) flags |= 4;
>      Record.push_back(flags);
>
> -    if (capture.hasCopyExpr()) Writer.AddStmt(capture.getCopyExpr());
> +    if (capture.hasCopyExpr()) Record.AddStmt(capture.getCopyExpr());
>    }
>
>    Code = serialization::DECL_BLOCK;
> @@ -1505,7 +1494,7 @@ void ASTDeclWriter::VisitNonTypeTemplate
>                            !D->defaultArgumentWasInherited();
>      Record.push_back(OwnsDefaultArg);
>      if (OwnsDefaultArg)
> -      Writer.AddStmt(D->getDefaultArgument());
> +      Record.AddStmt(D->getDefaultArgument());
>      Code = serialization::DECL_NON_TYPE_TEMPLATE_PARM;
>    }
>  }
> @@ -1546,9 +1535,9 @@ void ASTDeclWriter::VisitTypeAliasTempla
>
>  void ASTDeclWriter::VisitStaticAssertDecl(StaticAssertDecl *D) {
>    VisitDecl(D);
> -  Writer.AddStmt(D->getAssertExpr());
> +  Record.AddStmt(D->getAssertExpr());
>    Record.push_back(D->isFailed());
> -  Writer.AddStmt(D->getMessage());
> +  Record.AddStmt(D->getMessage());
>    Record.AddSourceLocation(D->getRParenLoc());
>    Code = serialization::DECL_STATIC_ASSERT;
>  }
> @@ -1661,15 +1650,15 @@ void ASTDeclWriter::VisitOMPThreadPrivat
>    Record.push_back(D->varlist_size());
>    VisitDecl(D);
>    for (auto *I : D->varlists())
> -    Writer.AddStmt(I);
> +    Record.AddStmt(I);
>    Code = serialization::DECL_OMP_THREADPRIVATE;
>  }
>
>  void ASTDeclWriter::VisitOMPDeclareReductionDecl(OMPDeclareReductionDecl
> *D) {
>    VisitValueDecl(D);
>    Record.AddSourceLocation(D->getLocStart());
> -  Writer.AddStmt(D->getCombiner());
> -  Writer.AddStmt(D->getInitializer());
> +  Record.AddStmt(D->getCombiner());
> +  Record.AddStmt(D->getInitializer());
>    Record.AddDeclRef(D->getPrevDeclInScope());
>    Code = serialization::DECL_OMP_DECLARE_REDUCTION;
>  }
> @@ -2147,9 +2136,6 @@ static bool isRequiredDecl(const Decl *D
>  }
>
>  void ASTWriter::WriteDecl(ASTContext &Context, Decl *D) {
> -  // Switch case IDs are per Decl.
> -  ClearSwitchCaseIDs();
> -
>    // Determine the ID for this declaration.
>    serialization::DeclID ID;
>    assert(!D->isFromASTFile() && "should not be emitting imported decl");
> @@ -2208,10 +2194,16 @@ void ASTWriter::WriteDecl(ASTContext &Co
>      EagerlyDeserializedDecls.push_back(ID);
>  }
>
> -void ASTWriter::AddFunctionDefinition(const FunctionDecl *FD,
> -                                      RecordDataImpl &Record) {
> -  ClearSwitchCaseIDs();
> -
> -  ASTDeclWriter W(*this, FD->getASTContext(), Record);
> -  W.AddFunctionDefinition(FD);
> +void ASTRecordWriter::AddFunctionDefinition(const FunctionDecl *FD) {
> +  // Switch case IDs are per function body.
> +  Writer->ClearSwitchCaseIDs();
> +
> +  assert(FD->doesThisDeclarationHaveABody());
> +  if (auto *CD = dyn_cast<CXXConstructorDecl>(FD)) {
> +    Record->push_back(CD->getNumCtorInitializers());
> +    if (CD->getNumCtorInitializers())
> +      AddCXXCtorInitializersRef(
> +          llvm::makeArrayRef(CD->init_begin(), CD->init_end()));
> +  }
> +  AddStmt(FD->getBody());
>  }
>
> Modified: cfe/trunk/lib/Serialization/ASTWriterStmt.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Serialization/ASTWriterStmt.cpp?rev=265518&r1=265517&r2=265518&view=diff
>
> ==============================================================================
> --- cfe/trunk/lib/Serialization/ASTWriterStmt.cpp (original)
> +++ cfe/trunk/lib/Serialization/ASTWriterStmt.cpp Wed Apr  6 01:26:08 2016
> @@ -31,14 +31,23 @@ namespace clang {
>    class ASTStmtWriter : public StmtVisitor<ASTStmtWriter, void> {
>      friend class OMPClauseWriter;
>      ASTWriter &Writer;
> -    ASTWriter::RecordData &Record;
> +    ASTRecordWriter Record;
>
> -  public:
>      serialization::StmtCode Code;
>      unsigned AbbrevToUse;
>
> +  public:
>      ASTStmtWriter(ASTWriter &Writer, ASTWriter::RecordData &Record)
> -      : Writer(Writer), Record(Record) { }
> +        : Writer(Writer), Record(Writer, Record),
> +          Code(serialization::STMT_NULL_PTR), AbbrevToUse(0) {}
> +
> +    ASTStmtWriter(const ASTStmtWriter&) = delete;
> +
> +    uint64_t Emit(Stmt *S) {
> +      assert(Code != serialization::STMT_NULL_PTR &&
> +             "unhandled sub-statement writing AST file");
> +      return Record.EmitStmt(Code, AbbrevToUse);
> +    }
>
>      void AddTemplateKWAndArgsInfo(const ASTTemplateKWAndArgsInfo &ArgInfo,
>                                    const TemplateArgumentLoc *Args);
> @@ -52,11 +61,11 @@ namespace clang {
>
>  void ASTStmtWriter::AddTemplateKWAndArgsInfo(
>      const ASTTemplateKWAndArgsInfo &ArgInfo, const TemplateArgumentLoc
> *Args) {
> -  Writer.AddSourceLocation(ArgInfo.TemplateKWLoc, Record);
> -  Writer.AddSourceLocation(ArgInfo.LAngleLoc, Record);
> -  Writer.AddSourceLocation(ArgInfo.RAngleLoc, Record);
> +  Record.AddSourceLocation(ArgInfo.TemplateKWLoc);
> +  Record.AddSourceLocation(ArgInfo.LAngleLoc);
> +  Record.AddSourceLocation(ArgInfo.RAngleLoc);
>    for (unsigned i = 0; i != ArgInfo.NumTemplateArgs; ++i)
> -    Writer.AddTemplateArgumentLoc(Args[i], Record);
> +    Record.AddTemplateArgumentLoc(Args[i]);
>  }
>
>  void ASTStmtWriter::VisitStmt(Stmt *S) {
> @@ -64,7 +73,7 @@ void ASTStmtWriter::VisitStmt(Stmt *S) {
>
>  void ASTStmtWriter::VisitNullStmt(NullStmt *S) {
>    VisitStmt(S);
> -  Writer.AddSourceLocation(S->getSemiLoc(), Record);
> +  Record.AddSourceLocation(S->getSemiLoc());
>    Record.push_back(S->HasLeadingEmptyMacro);
>    Code = serialization::STMT_NULL;
>  }
> @@ -73,68 +82,68 @@ void ASTStmtWriter::VisitCompoundStmt(Co
>    VisitStmt(S);
>    Record.push_back(S->size());
>    for (auto *CS : S->body())
> -    Writer.AddStmt(CS);
> -  Writer.AddSourceLocation(S->getLBracLoc(), Record);
> -  Writer.AddSourceLocation(S->getRBracLoc(), Record);
> +    Record.AddStmt(CS);
> +  Record.AddSourceLocation(S->getLBracLoc());
> +  Record.AddSourceLocation(S->getRBracLoc());
>    Code = serialization::STMT_COMPOUND;
>  }
>
>  void ASTStmtWriter::VisitSwitchCase(SwitchCase *S) {
>    VisitStmt(S);
>    Record.push_back(Writer.getSwitchCaseID(S));
> -  Writer.AddSourceLocation(S->getKeywordLoc(), Record);
> -  Writer.AddSourceLocation(S->getColonLoc(), Record);
> +  Record.AddSourceLocation(S->getKeywordLoc());
> +  Record.AddSourceLocation(S->getColonLoc());
>  }
>
>  void ASTStmtWriter::VisitCaseStmt(CaseStmt *S) {
>    VisitSwitchCase(S);
> -  Writer.AddStmt(S->getLHS());
> -  Writer.AddStmt(S->getRHS());
> -  Writer.AddStmt(S->getSubStmt());
> -  Writer.AddSourceLocation(S->getEllipsisLoc(), Record);
> +  Record.AddStmt(S->getLHS());
> +  Record.AddStmt(S->getRHS());
> +  Record.AddStmt(S->getSubStmt());
> +  Record.AddSourceLocation(S->getEllipsisLoc());
>    Code = serialization::STMT_CASE;
>  }
>
>  void ASTStmtWriter::VisitDefaultStmt(DefaultStmt *S) {
>    VisitSwitchCase(S);
> -  Writer.AddStmt(S->getSubStmt());
> +  Record.AddStmt(S->getSubStmt());
>    Code = serialization::STMT_DEFAULT;
>  }
>
>  void ASTStmtWriter::VisitLabelStmt(LabelStmt *S) {
>    VisitStmt(S);
> -  Writer.AddDeclRef(S->getDecl(), Record);
> -  Writer.AddStmt(S->getSubStmt());
> -  Writer.AddSourceLocation(S->getIdentLoc(), Record);
> +  Record.AddDeclRef(S->getDecl());
> +  Record.AddStmt(S->getSubStmt());
> +  Record.AddSourceLocation(S->getIdentLoc());
>    Code = serialization::STMT_LABEL;
>  }
>
>  void ASTStmtWriter::VisitAttributedStmt(AttributedStmt *S) {
>    VisitStmt(S);
>    Record.push_back(S->getAttrs().size());
> -  Writer.AddAttributes(S->getAttrs(), Record);
> -  Writer.AddStmt(S->getSubStmt());
> -  Writer.AddSourceLocation(S->getAttrLoc(), Record);
> +  Record.AddAttributes(S->getAttrs());
> +  Record.AddStmt(S->getSubStmt());
> +  Record.AddSourceLocation(S->getAttrLoc());
>    Code = serialization::STMT_ATTRIBUTED;
>  }
>
>  void ASTStmtWriter::VisitIfStmt(IfStmt *S) {
>    VisitStmt(S);
> -  Writer.AddDeclRef(S->getConditionVariable(), Record);
> -  Writer.AddStmt(S->getCond());
> -  Writer.AddStmt(S->getThen());
> -  Writer.AddStmt(S->getElse());
> -  Writer.AddSourceLocation(S->getIfLoc(), Record);
> -  Writer.AddSourceLocation(S->getElseLoc(), Record);
> +  Record.AddDeclRef(S->getConditionVariable());
> +  Record.AddStmt(S->getCond());
> +  Record.AddStmt(S->getThen());
> +  Record.AddStmt(S->getElse());
> +  Record.AddSourceLocation(S->getIfLoc());
> +  Record.AddSourceLocation(S->getElseLoc());
>    Code = serialization::STMT_IF;
>  }
>
>  void ASTStmtWriter::VisitSwitchStmt(SwitchStmt *S) {
>    VisitStmt(S);
> -  Writer.AddDeclRef(S->getConditionVariable(), Record);
> -  Writer.AddStmt(S->getCond());
> -  Writer.AddStmt(S->getBody());
> -  Writer.AddSourceLocation(S->getSwitchLoc(), Record);
> +  Record.AddDeclRef(S->getConditionVariable());
> +  Record.AddStmt(S->getCond());
> +  Record.AddStmt(S->getBody());
> +  Record.AddSourceLocation(S->getSwitchLoc());
>    Record.push_back(S->isAllEnumCasesCovered());
>    for (SwitchCase *SC = S->getSwitchCaseList(); SC;
>         SC = SC->getNextSwitchCase())
> @@ -144,79 +153,79 @@ void ASTStmtWriter::VisitSwitchStmt(Swit
>
>  void ASTStmtWriter::VisitWhileStmt(WhileStmt *S) {
>    VisitStmt(S);
> -  Writer.AddDeclRef(S->getConditionVariable(), Record);
> -  Writer.AddStmt(S->getCond());
> -  Writer.AddStmt(S->getBody());
> -  Writer.AddSourceLocation(S->getWhileLoc(), Record);
> +  Record.AddDeclRef(S->getConditionVariable());
> +  Record.AddStmt(S->getCond());
> +  Record.AddStmt(S->getBody());
> +  Record.AddSourceLocation(S->getWhileLoc());
>    Code = serialization::STMT_WHILE;
>  }
>
>  void ASTStmtWriter::VisitDoStmt(DoStmt *S) {
>    VisitStmt(S);
> -  Writer.AddStmt(S->getCond());
> -  Writer.AddStmt(S->getBody());
> -  Writer.AddSourceLocation(S->getDoLoc(), Record);
> -  Writer.AddSourceLocation(S->getWhileLoc(), Record);
> -  Writer.AddSourceLocation(S->getRParenLoc(), Record);
> +  Record.AddStmt(S->getCond());
> +  Record.AddStmt(S->getBody());
> +  Record.AddSourceLocation(S->getDoLoc());
> +  Record.AddSourceLocation(S->getWhileLoc());
> +  Record.AddSourceLocation(S->getRParenLoc());
>    Code = serialization::STMT_DO;
>  }
>
>  void ASTStmtWriter::VisitForStmt(ForStmt *S) {
>    VisitStmt(S);
> -  Writer.AddStmt(S->getInit());
> -  Writer.AddStmt(S->getCond());
> -  Writer.AddDeclRef(S->getConditionVariable(), Record);
> -  Writer.AddStmt(S->getInc());
> -  Writer.AddStmt(S->getBody());
> -  Writer.AddSourceLocation(S->getForLoc(), Record);
> -  Writer.AddSourceLocation(S->getLParenLoc(), Record);
> -  Writer.AddSourceLocation(S->getRParenLoc(), Record);
> +  Record.AddStmt(S->getInit());
> +  Record.AddStmt(S->getCond());
> +  Record.AddDeclRef(S->getConditionVariable());
> +  Record.AddStmt(S->getInc());
> +  Record.AddStmt(S->getBody());
> +  Record.AddSourceLocation(S->getForLoc());
> +  Record.AddSourceLocation(S->getLParenLoc());
> +  Record.AddSourceLocation(S->getRParenLoc());
>    Code = serialization::STMT_FOR;
>  }
>
>  void ASTStmtWriter::VisitGotoStmt(GotoStmt *S) {
>    VisitStmt(S);
> -  Writer.AddDeclRef(S->getLabel(), Record);
> -  Writer.AddSourceLocation(S->getGotoLoc(), Record);
> -  Writer.AddSourceLocation(S->getLabelLoc(), Record);
> +  Record.AddDeclRef(S->getLabel());
> +  Record.AddSourceLocation(S->getGotoLoc());
> +  Record.AddSourceLocation(S->getLabelLoc());
>    Code = serialization::STMT_GOTO;
>  }
>
>  void ASTStmtWriter::VisitIndirectGotoStmt(IndirectGotoStmt *S) {
>    VisitStmt(S);
> -  Writer.AddSourceLocation(S->getGotoLoc(), Record);
> -  Writer.AddSourceLocation(S->getStarLoc(), Record);
> -  Writer.AddStmt(S->getTarget());
> +  Record.AddSourceLocation(S->getGotoLoc());
> +  Record.AddSourceLocation(S->getStarLoc());
> +  Record.AddStmt(S->getTarget());
>    Code = serialization::STMT_INDIRECT_GOTO;
>  }
>
>  void ASTStmtWriter::VisitContinueStmt(ContinueStmt *S) {
>    VisitStmt(S);
> -  Writer.AddSourceLocation(S->getContinueLoc(), Record);
> +  Record.AddSourceLocation(S->getContinueLoc());
>    Code = serialization::STMT_CONTINUE;
>  }
>
>  void ASTStmtWriter::VisitBreakStmt(BreakStmt *S) {
>    VisitStmt(S);
> -  Writer.AddSourceLocation(S->getBreakLoc(), Record);
> +  Record.AddSourceLocation(S->getBreakLoc());
>    Code = serialization::STMT_BREAK;
>  }
>
>  void ASTStmtWriter::VisitReturnStmt(ReturnStmt *S) {
>    VisitStmt(S);
> -  Writer.AddStmt(S->getRetValue());
> -  Writer.AddSourceLocation(S->getReturnLoc(), Record);
> -  Writer.AddDeclRef(S->getNRVOCandidate(), Record);
> +  Record.AddStmt(S->getRetValue());
> +  Record.AddSourceLocation(S->getReturnLoc());
> +  Record.AddDeclRef(S->getNRVOCandidate());
>    Code = serialization::STMT_RETURN;
>  }
>
>  void ASTStmtWriter::VisitDeclStmt(DeclStmt *S) {
>    VisitStmt(S);
> -  Writer.AddSourceLocation(S->getStartLoc(), Record);
> -  Writer.AddSourceLocation(S->getEndLoc(), Record);
> +  Record.AddSourceLocation(S->getStartLoc());
> +  Record.AddSourceLocation(S->getEndLoc());
>    DeclGroupRef DG = S->getDeclGroup();
>    for (DeclGroupRef::iterator D = DG.begin(), DEnd = DG.end(); D != DEnd;
> ++D)
> -    Writer.AddDeclRef(*D, Record);
> +    Record.AddDeclRef(*D);
>    Code = serialization::STMT_DECL;
>  }
>
> @@ -225,64 +234,65 @@ void ASTStmtWriter::VisitAsmStmt(AsmStmt
>    Record.push_back(S->getNumOutputs());
>    Record.push_back(S->getNumInputs());
>    Record.push_back(S->getNumClobbers());
> -  Writer.AddSourceLocation(S->getAsmLoc(), Record);
> +  Record.AddSourceLocation(S->getAsmLoc());
>    Record.push_back(S->isVolatile());
>    Record.push_back(S->isSimple());
>  }
>
>  void ASTStmtWriter::VisitGCCAsmStmt(GCCAsmStmt *S) {
>    VisitAsmStmt(S);
> -  Writer.AddSourceLocation(S->getRParenLoc(), Record);
> -  Writer.AddStmt(S->getAsmString());
> +  Record.AddSourceLocation(S->getRParenLoc());
> +  Record.AddStmt(S->getAsmString());
>
>    // Outputs
>    for (unsigned I = 0, N = S->getNumOutputs(); I != N; ++I) {
> -    Writer.AddIdentifierRef(S->getOutputIdentifier(I), Record);
> -    Writer.AddStmt(S->getOutputConstraintLiteral(I));
> -    Writer.AddStmt(S->getOutputExpr(I));
> +    Record.AddIdentifierRef(S->getOutputIdentifier(I));
> +    Record.AddStmt(S->getOutputConstraintLiteral(I));
> +    Record.AddStmt(S->getOutputExpr(I));
>    }
>
>    // Inputs
>    for (unsigned I = 0, N = S->getNumInputs(); I != N; ++I) {
> -    Writer.AddIdentifierRef(S->getInputIdentifier(I), Record);
> -    Writer.AddStmt(S->getInputConstraintLiteral(I));
> -    Writer.AddStmt(S->getInputExpr(I));
> +    Record.AddIdentifierRef(S->getInputIdentifier(I));
> +    Record.AddStmt(S->getInputConstraintLiteral(I));
> +    Record.AddStmt(S->getInputExpr(I));
>    }
>
>    // Clobbers
>    for (unsigned I = 0, N = S->getNumClobbers(); I != N; ++I)
> -    Writer.AddStmt(S->getClobberStringLiteral(I));
> +    Record.AddStmt(S->getClobberStringLiteral(I));
>
>    Code = serialization::STMT_GCCASM;
>  }
>
>  void ASTStmtWriter::VisitMSAsmStmt(MSAsmStmt *S) {
>    VisitAsmStmt(S);
> -  Writer.AddSourceLocation(S->getLBraceLoc(), Record);
> -  Writer.AddSourceLocation(S->getEndLoc(), Record);
> +  Record.AddSourceLocation(S->getLBraceLoc());
> +  Record.AddSourceLocation(S->getEndLoc());
>    Record.push_back(S->getNumAsmToks());
> -  Writer.AddString(S->getAsmString(), Record);
> +  Record.AddString(S->getAsmString());
>
>    // Tokens
>    for (unsigned I = 0, N = S->getNumAsmToks(); I != N; ++I) {
> -    Writer.AddToken(S->getAsmToks()[I], Record);
> +    // FIXME: Move this to ASTRecordWriter?
> +    Writer.AddToken(S->getAsmToks()[I], Record.getRecordData());
>    }
>
>    // Clobbers
>    for (unsigned I = 0, N = S->getNumClobbers(); I != N; ++I) {
> -    Writer.AddString(S->getClobber(I), Record);
> +    Record.AddString(S->getClobber(I));
>    }
>
>    // Outputs
>    for (unsigned I = 0, N = S->getNumOutputs(); I != N; ++I) {
> -    Writer.AddStmt(S->getOutputExpr(I));
> -    Writer.AddString(S->getOutputConstraint(I), Record);
> +    Record.AddStmt(S->getOutputExpr(I));
> +    Record.AddString(S->getOutputConstraint(I));
>    }
>
>    // Inputs
>    for (unsigned I = 0, N = S->getNumInputs(); I != N; ++I) {
> -    Writer.AddStmt(S->getInputExpr(I));
> -    Writer.AddString(S->getInputConstraint(I), Record);
> +    Record.AddStmt(S->getInputExpr(I));
> +    Record.AddString(S->getInputConstraint(I));
>    }
>
>    Code = serialization::STMT_MSASM;
> @@ -314,26 +324,26 @@ void ASTStmtWriter::VisitCapturedStmt(Ca
>    Record.push_back(std::distance(S->capture_begin(), S->capture_end()));
>
>    // CapturedDecl and captured region kind
> -  Writer.AddDeclRef(S->getCapturedDecl(), Record);
> +  Record.AddDeclRef(S->getCapturedDecl());
>    Record.push_back(S->getCapturedRegionKind());
>
> -  Writer.AddDeclRef(S->getCapturedRecordDecl(), Record);
> +  Record.AddDeclRef(S->getCapturedRecordDecl());
>
>    // Capture inits
>    for (auto *I : S->capture_inits())
> -    Writer.AddStmt(I);
> +    Record.AddStmt(I);
>
>    // Body
> -  Writer.AddStmt(S->getCapturedStmt());
> +  Record.AddStmt(S->getCapturedStmt());
>
>    // Captures
>    for (const auto &I : S->captures()) {
>      if (I.capturesThis() || I.capturesVariableArrayType())
> -      Writer.AddDeclRef(nullptr, Record);
> +      Record.AddDeclRef(nullptr);
>      else
> -      Writer.AddDeclRef(I.getCapturedVar(), Record);
> +      Record.AddDeclRef(I.getCapturedVar());
>      Record.push_back(I.getCaptureKind());
> -    Writer.AddSourceLocation(I.getLocation(), Record);
> +    Record.AddSourceLocation(I.getLocation());
>    }
>
>    Code = serialization::STMT_CAPTURED;
> @@ -341,7 +351,7 @@ void ASTStmtWriter::VisitCapturedStmt(Ca
>
>  void ASTStmtWriter::VisitExpr(Expr *E) {
>    VisitStmt(E);
> -  Writer.AddTypeRef(E->getType(), Record);
> +  Record.AddTypeRef(E->getType());
>    Record.push_back(E->isTypeDependent());
>    Record.push_back(E->isValueDependent());
>    Record.push_back(E->isInstantiationDependent());
> @@ -352,9 +362,9 @@ void ASTStmtWriter::VisitExpr(Expr *E) {
>
>  void ASTStmtWriter::VisitPredefinedExpr(PredefinedExpr *E) {
>    VisitExpr(E);
> -  Writer.AddSourceLocation(E->getLocation(), Record);
> +  Record.AddSourceLocation(E->getLocation());
>    Record.push_back(E->getIdentType()); // FIXME: stable encoding
> -  Writer.AddStmt(E->getFunctionName());
> +  Record.AddStmt(E->getFunctionName());
>    Code = serialization::EXPR_PREDEFINED;
>  }
>
> @@ -381,25 +391,25 @@ void ASTStmtWriter::VisitDeclRefExpr(Dec
>    }
>
>    if (E->hasQualifier())
> -    Writer.AddNestedNameSpecifierLoc(E->getQualifierLoc(), Record);
> +    Record.AddNestedNameSpecifierLoc(E->getQualifierLoc());
>
>    if (E->getDecl() != E->getFoundDecl())
> -    Writer.AddDeclRef(E->getFoundDecl(), Record);
> +    Record.AddDeclRef(E->getFoundDecl());
>
>    if (E->hasTemplateKWAndArgsInfo())
>
>  AddTemplateKWAndArgsInfo(*E->getTrailingObjects<ASTTemplateKWAndArgsInfo>(),
>
> E->getTrailingObjects<TemplateArgumentLoc>());
>
> -  Writer.AddDeclRef(E->getDecl(), Record);
> -  Writer.AddSourceLocation(E->getLocation(), Record);
> -  Writer.AddDeclarationNameLoc(E->DNLoc, E->getDecl()->getDeclName(),
> Record);
> +  Record.AddDeclRef(E->getDecl());
> +  Record.AddSourceLocation(E->getLocation());
> +  Record.AddDeclarationNameLoc(E->DNLoc, E->getDecl()->getDeclName());
>    Code = serialization::EXPR_DECL_REF;
>  }
>
>  void ASTStmtWriter::VisitIntegerLiteral(IntegerLiteral *E) {
>    VisitExpr(E);
> -  Writer.AddSourceLocation(E->getLocation(), Record);
> -  Writer.AddAPInt(E->getValue(), Record);
> +  Record.AddSourceLocation(E->getLocation());
> +  Record.AddAPInt(E->getValue());
>
>    if (E->getValue().getBitWidth() == 32) {
>      AbbrevToUse = Writer.getIntegerLiteralAbbrev();
> @@ -412,14 +422,14 @@ void ASTStmtWriter::VisitFloatingLiteral
>    VisitExpr(E);
>    Record.push_back(E->getRawSemantics());
>    Record.push_back(E->isExact());
> -  Writer.AddAPFloat(E->getValue(), Record);
> -  Writer.AddSourceLocation(E->getLocation(), Record);
> +  Record.AddAPFloat(E->getValue());
> +  Record.AddSourceLocation(E->getLocation());
>    Code = serialization::EXPR_FLOATING_LITERAL;
>  }
>
>  void ASTStmtWriter::VisitImaginaryLiteral(ImaginaryLiteral *E) {
>    VisitExpr(E);
> -  Writer.AddStmt(E->getSubExpr());
> +  Record.AddStmt(E->getSubExpr());
>    Code = serialization::EXPR_IMAGINARY_LITERAL;
>  }
>
> @@ -435,14 +445,14 @@ void ASTStmtWriter::VisitStringLiteral(S
>    // the AST file during deserialization.
>    Record.append(E->getBytes().begin(), E->getBytes().end());
>    for (unsigned I = 0, N = E->getNumConcatenated(); I != N; ++I)
> -    Writer.AddSourceLocation(E->getStrTokenLoc(I), Record);
> +    Record.AddSourceLocation(E->getStrTokenLoc(I));
>    Code = serialization::EXPR_STRING_LITERAL;
>  }
>
>  void ASTStmtWriter::VisitCharacterLiteral(CharacterLiteral *E) {
>    VisitExpr(E);
>    Record.push_back(E->getValue());
> -  Writer.AddSourceLocation(E->getLocation(), Record);
> +  Record.AddSourceLocation(E->getLocation());
>    Record.push_back(E->getKind());
>
>    AbbrevToUse = Writer.getCharacterLiteralAbbrev();
> @@ -452,9 +462,9 @@ void ASTStmtWriter::VisitCharacterLitera
>
>  void ASTStmtWriter::VisitParenExpr(ParenExpr *E) {
>    VisitExpr(E);
> -  Writer.AddSourceLocation(E->getLParen(), Record);
> -  Writer.AddSourceLocation(E->getRParen(), Record);
> -  Writer.AddStmt(E->getSubExpr());
> +  Record.AddSourceLocation(E->getLParen());
> +  Record.AddSourceLocation(E->getRParen());
> +  Record.AddStmt(E->getSubExpr());
>    Code = serialization::EXPR_PAREN;
>  }
>
> @@ -462,17 +472,17 @@ void ASTStmtWriter::VisitParenListExpr(P
>    VisitExpr(E);
>    Record.push_back(E->NumExprs);
>    for (unsigned i=0; i != E->NumExprs; ++i)
> -    Writer.AddStmt(E->Exprs[i]);
> -  Writer.AddSourceLocation(E->LParenLoc, Record);
> -  Writer.AddSourceLocation(E->RParenLoc, Record);
> +    Record.AddStmt(E->Exprs[i]);
> +  Record.AddSourceLocation(E->LParenLoc);
> +  Record.AddSourceLocation(E->RParenLoc);
>    Code = serialization::EXPR_PAREN_LIST;
>  }
>
>  void ASTStmtWriter::VisitUnaryOperator(UnaryOperator *E) {
>    VisitExpr(E);
> -  Writer.AddStmt(E->getSubExpr());
> +  Record.AddStmt(E->getSubExpr());
>    Record.push_back(E->getOpcode()); // FIXME: stable encoding
> -  Writer.AddSourceLocation(E->getOperatorLoc(), Record);
> +  Record.AddSourceLocation(E->getOperatorLoc());
>    Code = serialization::EXPR_UNARY_OPERATOR;
>  }
>
> @@ -480,34 +490,34 @@ void ASTStmtWriter::VisitOffsetOfExpr(Of
>    VisitExpr(E);
>    Record.push_back(E->getNumComponents());
>    Record.push_back(E->getNumExpressions());
> -  Writer.AddSourceLocation(E->getOperatorLoc(), Record);
> -  Writer.AddSourceLocation(E->getRParenLoc(), Record);
> -  Writer.AddTypeSourceInfo(E->getTypeSourceInfo(), Record);
> +  Record.AddSourceLocation(E->getOperatorLoc());
> +  Record.AddSourceLocation(E->getRParenLoc());
> +  Record.AddTypeSourceInfo(E->getTypeSourceInfo());
>    for (unsigned I = 0, N = E->getNumComponents(); I != N; ++I) {
>      const OffsetOfNode &ON = E->getComponent(I);
>      Record.push_back(ON.getKind()); // FIXME: Stable encoding
> -    Writer.AddSourceLocation(ON.getSourceRange().getBegin(), Record);
> -    Writer.AddSourceLocation(ON.getSourceRange().getEnd(), Record);
> +    Record.AddSourceLocation(ON.getSourceRange().getBegin());
> +    Record.AddSourceLocation(ON.getSourceRange().getEnd());
>      switch (ON.getKind()) {
>      case OffsetOfNode::Array:
>        Record.push_back(ON.getArrayExprIndex());
>        break;
>
>      case OffsetOfNode::Field:
> -      Writer.AddDeclRef(ON.getField(), Record);
> +      Record.AddDeclRef(ON.getField());
>        break;
>
>      case OffsetOfNode::Identifier:
> -      Writer.AddIdentifierRef(ON.getFieldName(), Record);
> +      Record.AddIdentifierRef(ON.getFieldName());
>        break;
>
>      case OffsetOfNode::Base:
> -      Writer.AddCXXBaseSpecifier(*ON.getBase(), Record);
> +      Record.AddCXXBaseSpecifier(*ON.getBase());
>        break;
>      }
>    }
>    for (unsigned I = 0, N = E->getNumExpressions(); I != N; ++I)
> -    Writer.AddStmt(E->getIndexExpr(I));
> +    Record.AddStmt(E->getIndexExpr(I));
>    Code = serialization::EXPR_OFFSETOF;
>  }
>
> @@ -515,42 +525,42 @@ void ASTStmtWriter::VisitUnaryExprOrType
>    VisitExpr(E);
>    Record.push_back(E->getKind());
>    if (E->isArgumentType())
> -    Writer.AddTypeSourceInfo(E->getArgumentTypeInfo(), Record);
> +    Record.AddTypeSourceInfo(E->getArgumentTypeInfo());
>    else {
>      Record.push_back(0);
> -    Writer.AddStmt(E->getArgumentExpr());
> +    Record.AddStmt(E->getArgumentExpr());
>    }
> -  Writer.AddSourceLocation(E->getOperatorLoc(), Record);
> -  Writer.AddSourceLocation(E->getRParenLoc(), Record);
> +  Record.AddSourceLocation(E->getOperatorLoc());
> +  Record.AddSourceLocation(E->getRParenLoc());
>    Code = serialization::EXPR_SIZEOF_ALIGN_OF;
>  }
>
>  void ASTStmtWriter::VisitArraySubscriptExpr(ArraySubscriptExpr *E) {
>    VisitExpr(E);
> -  Writer.AddStmt(E->getLHS());
> -  Writer.AddStmt(E->getRHS());
> -  Writer.AddSourceLocation(E->getRBracketLoc(), Record);
> +  Record.AddStmt(E->getLHS());
> +  Record.AddStmt(E->getRHS());
> +  Record.AddSourceLocation(E->getRBracketLoc());
>    Code = serialization::EXPR_ARRAY_SUBSCRIPT;
>  }
>
>  void ASTStmtWriter::VisitOMPArraySectionExpr(OMPArraySectionExpr *E) {
>    VisitExpr(E);
> -  Writer.AddStmt(E->getBase());
> -  Writer.AddStmt(E->getLowerBound());
> -  Writer.AddStmt(E->getLength());
> -  Writer.AddSourceLocation(E->getColonLoc(), Record);
> -  Writer.AddSourceLocation(E->getRBracketLoc(), Record);
> +  Record.AddStmt(E->getBase());
> +  Record.AddStmt(E->getLowerBound());
> +  Record.AddStmt(E->getLength());
> +  Record.AddSourceLocation(E->getColonLoc());
> +  Record.AddSourceLocation(E->getRBracketLoc());
>    Code = serialization::EXPR_OMP_ARRAY_SECTION;
>  }
>
>  void ASTStmtWriter::VisitCallExpr(CallExpr *E) {
>    VisitExpr(E);
>    Record.push_back(E->getNumArgs());
> -  Writer.AddSourceLocation(E->getRParenLoc(), Record);
> -  Writer.AddStmt(E->getCallee());
> +  Record.AddSourceLocation(E->getRParenLoc());
> +  Record.AddStmt(E->getCallee());
>    for (CallExpr::arg_iterator Arg = E->arg_begin(), ArgEnd = E->arg_end();
>         Arg != ArgEnd; ++Arg)
> -    Writer.AddStmt(*Arg);
> +    Record.AddStmt(*Arg);
>    Code = serialization::EXPR_CALL;
>  }
>
> @@ -559,43 +569,43 @@ void ASTStmtWriter::VisitMemberExpr(Memb
>
>    Record.push_back(E->hasQualifier());
>    if (E->hasQualifier())
> -    Writer.AddNestedNameSpecifierLoc(E->getQualifierLoc(), Record);
> +    Record.AddNestedNameSpecifierLoc(E->getQualifierLoc());
>
>    Record.push_back(E->HasTemplateKWAndArgsInfo);
>    if (E->HasTemplateKWAndArgsInfo) {
> -    Writer.AddSourceLocation(E->getTemplateKeywordLoc(), Record);
> +    Record.AddSourceLocation(E->getTemplateKeywordLoc());
>      unsigned NumTemplateArgs = E->getNumTemplateArgs();
>      Record.push_back(NumTemplateArgs);
> -    Writer.AddSourceLocation(E->getLAngleLoc(), Record);
> -    Writer.AddSourceLocation(E->getRAngleLoc(), Record);
> +    Record.AddSourceLocation(E->getLAngleLoc());
> +    Record.AddSourceLocation(E->getRAngleLoc());
>      for (unsigned i=0; i != NumTemplateArgs; ++i)
> -      Writer.AddTemplateArgumentLoc(E->getTemplateArgs()[i], Record);
> +      Record.AddTemplateArgumentLoc(E->getTemplateArgs()[i]);
>    }
>
>    Record.push_back(E->hadMultipleCandidates());
>
>    DeclAccessPair FoundDecl = E->getFoundDecl();
> -  Writer.AddDeclRef(FoundDecl.getDecl(), Record);
> +  Record.AddDeclRef(FoundDecl.getDecl());
>    Record.push_back(FoundDecl.getAccess());
>
> -  Writer.AddTypeRef(E->getType(), Record);
> +  Record.AddTypeRef(E->getType());
>    Record.push_back(E->getValueKind());
>    Record.push_back(E->getObjectKind());
> -  Writer.AddStmt(E->getBase());
> -  Writer.AddDeclRef(E->getMemberDecl(), Record);
> -  Writer.AddSourceLocation(E->getMemberLoc(), Record);
> +  Record.AddStmt(E->getBase());
> +  Record.AddDeclRef(E->getMemberDecl());
> +  Record.AddSourceLocation(E->getMemberLoc());
>    Record.push_back(E->isArrow());
> -  Writer.AddSourceLocation(E->getOperatorLoc(), Record);
> -  Writer.AddDeclarationNameLoc(E->MemberDNLoc,
> -                               E->getMemberDecl()->getDeclName(), Record);
> +  Record.AddSourceLocation(E->getOperatorLoc());
> +  Record.AddDeclarationNameLoc(E->MemberDNLoc,
> +                               E->getMemberDecl()->getDeclName());
>    Code = serialization::EXPR_MEMBER;
>  }
>
>  void ASTStmtWriter::VisitObjCIsaExpr(ObjCIsaExpr *E) {
>    VisitExpr(E);
> -  Writer.AddStmt(E->getBase());
> -  Writer.AddSourceLocation(E->getIsaMemberLoc(), Record);
> -  Writer.AddSourceLocation(E->getOpLoc(), Record);
> +  Record.AddStmt(E->getBase());
> +  Record.AddSourceLocation(E->getIsaMemberLoc());
> +  Record.AddSourceLocation(E->getOpLoc());
>    Record.push_back(E->isArrow());
>    Code = serialization::EXPR_OBJC_ISA;
>  }
> @@ -603,15 +613,15 @@ void ASTStmtWriter::VisitObjCIsaExpr(Obj
>  void ASTStmtWriter::
>  VisitObjCIndirectCopyRestoreExpr(ObjCIndirectCopyRestoreExpr *E) {
>    VisitExpr(E);
> -  Writer.AddStmt(E->getSubExpr());
> +  Record.AddStmt(E->getSubExpr());
>    Record.push_back(E->shouldCopy());
>    Code = serialization::EXPR_OBJC_INDIRECT_COPY_RESTORE;
>  }
>
>  void ASTStmtWriter::VisitObjCBridgedCastExpr(ObjCBridgedCastExpr *E) {
>    VisitExplicitCastExpr(E);
> -  Writer.AddSourceLocation(E->getLParenLoc(), Record);
> -  Writer.AddSourceLocation(E->getBridgeKeywordLoc(), Record);
> +  Record.AddSourceLocation(E->getLParenLoc());
> +  Record.AddSourceLocation(E->getBridgeKeywordLoc());
>    Record.push_back(E->getBridgeKind()); // FIXME: Stable encoding
>    Code = serialization::EXPR_OBJC_BRIDGED_CAST;
>  }
> @@ -619,51 +629,51 @@ void ASTStmtWriter::VisitObjCBridgedCast
>  void ASTStmtWriter::VisitCastExpr(CastExpr *E) {
>    VisitExpr(E);
>    Record.push_back(E->path_size());
> -  Writer.AddStmt(E->getSubExpr());
> +  Record.AddStmt(E->getSubExpr());
>    Record.push_back(E->getCastKind()); // FIXME: stable encoding
>
>    for (CastExpr::path_iterator
>           PI = E->path_begin(), PE = E->path_end(); PI != PE; ++PI)
> -    Writer.AddCXXBaseSpecifier(**PI, Record);
> +    Record.AddCXXBaseSpecifier(**PI);
>  }
>
>  void ASTStmtWriter::VisitBinaryOperator(BinaryOperator *E) {
>    VisitExpr(E);
> -  Writer.AddStmt(E->getLHS());
> -  Writer.AddStmt(E->getRHS());
> +  Record.AddStmt(E->getLHS());
> +  Record.AddStmt(E->getRHS());
>    Record.push_back(E->getOpcode()); // FIXME: stable encoding
> -  Writer.AddSourceLocation(E->getOperatorLoc(), Record);
> +  Record.AddSourceLocation(E->getOperatorLoc());
>    Record.push_back(E->isFPContractable());
>    Code = serialization::EXPR_BINARY_OPERATOR;
>  }
>
>  void ASTStmtWriter::VisitCompoundAssignOperator(CompoundAssignOperator
> *E) {
>    VisitBinaryOperator(E);
> -  Writer.AddTypeRef(E->getComputationLHSType(), Record);
> -  Writer.AddTypeRef(E->getComputationResultType(), Record);
> +  Record.AddTypeRef(E->getComputationLHSType());
> +  Record.AddTypeRef(E->getComputationResultType());
>    Code = serialization::EXPR_COMPOUND_ASSIGN_OPERATOR;
>  }
>
>  void ASTStmtWriter::VisitConditionalOperator(ConditionalOperator *E) {
>    VisitExpr(E);
> -  Writer.AddStmt(E->getCond());
> -  Writer.AddStmt(E->getLHS());
> -  Writer.AddStmt(E->getRHS());
> -  Writer.AddSourceLocation(E->getQuestionLoc(), Record);
> -  Writer.AddSourceLocation(E->getColonLoc(), Record);
> +  Record.AddStmt(E->getCond());
> +  Record.AddStmt(E->getLHS());
> +  Record.AddStmt(E->getRHS());
> +  Record.AddSourceLocation(E->getQuestionLoc());
> +  Record.AddSourceLocation(E->getColonLoc());
>    Code = serialization::EXPR_CONDITIONAL_OPERATOR;
>  }
>
>  void
>  ASTStmtWriter::VisitBinaryConditionalOperator(BinaryConditionalOperator
> *E) {
>    VisitExpr(E);
> -  Writer.AddStmt(E->getOpaqueValue());
> -  Writer.AddStmt(E->getCommon());
> -  Writer.AddStmt(E->getCond());
> -  Writer.AddStmt(E->getTrueExpr());
> -  Writer.AddStmt(E->getFalseExpr());
> -  Writer.AddSourceLocation(E->getQuestionLoc(), Record);
> -  Writer.AddSourceLocation(E->getColonLoc(), Record);
> +  Record.AddStmt(E->getOpaqueValue());
> +  Record.AddStmt(E->getCommon());
> +  Record.AddStmt(E->getCond());
> +  Record.AddStmt(E->getTrueExpr());
> +  Record.AddStmt(E->getFalseExpr());
> +  Record.AddSourceLocation(E->getQuestionLoc());
> +  Record.AddSourceLocation(E->getColonLoc());
>    Code = serialization::EXPR_BINARY_CONDITIONAL_OPERATOR;
>  }
>
> @@ -678,30 +688,30 @@ void ASTStmtWriter::VisitImplicitCastExp
>
>  void ASTStmtWriter::VisitExplicitCastExpr(ExplicitCastExpr *E) {
>    VisitCastExpr(E);
> -  Writer.AddTypeSourceInfo(E->getTypeInfoAsWritten(), Record);
> +  Record.AddTypeSourceInfo(E->getTypeInfoAsWritten());
>  }
>
>  void ASTStmtWriter::VisitCStyleCastExpr(CStyleCastExpr *E) {
>    VisitExplicitCastExpr(E);
> -  Writer.AddSourceLocation(E->getLParenLoc(), Record);
> -  Writer.AddSourceLocation(E->getRParenLoc(), Record);
> +  Record.AddSourceLocation(E->getLParenLoc());
> +  Record.AddSourceLocation(E->getRParenLoc());
>    Code = serialization::EXPR_CSTYLE_CAST;
>  }
>
>  void ASTStmtWriter::VisitCompoundLiteralExpr(CompoundLiteralExpr *E) {
>    VisitExpr(E);
> -  Writer.AddSourceLocation(E->getLParenLoc(), Record);
> -  Writer.AddTypeSourceInfo(E->getTypeSourceInfo(), Record);
> -  Writer.AddStmt(E->getInitializer());
> +  Record.AddSourceLocation(E->getLParenLoc());
> +  Record.AddTypeSourceInfo(E->getTypeSourceInfo());
> +  Record.AddStmt(E->getInitializer());
>    Record.push_back(E->isFileScope());
>    Code = serialization::EXPR_COMPOUND_LITERAL;
>  }
>
>  void ASTStmtWriter::VisitExtVectorElementExpr(ExtVectorElementExpr *E) {
>    VisitExpr(E);
> -  Writer.AddStmt(E->getBase());
> -  Writer.AddIdentifierRef(&E->getAccessor(), Record);
> -  Writer.AddSourceLocation(E->getAccessorLoc(), Record);
> +  Record.AddStmt(E->getBase());
> +  Record.AddIdentifierRef(&E->getAccessor());
> +  Record.AddSourceLocation(E->getAccessorLoc());
>    Code = serialization::EXPR_EXT_VECTOR_ELEMENT;
>  }
>
> @@ -709,15 +719,15 @@ void ASTStmtWriter::VisitInitListExpr(In
>    VisitExpr(E);
>    // NOTE: only add the (possibly null) syntactic form.
>    // No need to serialize the isSemanticForm flag and the semantic form.
> -  Writer.AddStmt(E->getSyntacticForm());
> -  Writer.AddSourceLocation(E->getLBraceLoc(), Record);
> -  Writer.AddSourceLocation(E->getRBraceLoc(), Record);
> +  Record.AddStmt(E->getSyntacticForm());
> +  Record.AddSourceLocation(E->getLBraceLoc());
> +  Record.AddSourceLocation(E->getRBraceLoc());
>    bool isArrayFiller = E->ArrayFillerOrUnionFieldInit.is<Expr*>();
>    Record.push_back(isArrayFiller);
>    if (isArrayFiller)
> -    Writer.AddStmt(E->getArrayFiller());
> +    Record.AddStmt(E->getArrayFiller());
>    else
> -    Writer.AddDeclRef(E->getInitializedFieldInUnion(), Record);
> +    Record.AddDeclRef(E->getInitializedFieldInUnion());
>    Record.push_back(E->hadArrayRangeDesignator());
>    Record.push_back(E->getNumInits());
>    if (isArrayFiller) {
> @@ -725,10 +735,10 @@ void ASTStmtWriter::VisitInitListExpr(In
>      // Replace them by 0 to indicate that the filler goes in that place.
>      Expr *filler = E->getArrayFiller();
>      for (unsigned I = 0, N = E->getNumInits(); I != N; ++I)
> -      Writer.AddStmt(E->getInit(I) != filler ? E->getInit(I) : nullptr);
> +      Record.AddStmt(E->getInit(I) != filler ? E->getInit(I) : nullptr);
>    } else {
>      for (unsigned I = 0, N = E->getNumInits(); I != N; ++I)
> -      Writer.AddStmt(E->getInit(I));
> +      Record.AddStmt(E->getInit(I));
>    }
>    Code = serialization::EXPR_INIT_LIST;
>  }
> @@ -737,8 +747,8 @@ void ASTStmtWriter::VisitDesignatedInitE
>    VisitExpr(E);
>    Record.push_back(E->getNumSubExprs());
>    for (unsigned I = 0, N = E->getNumSubExprs(); I != N; ++I)
> -    Writer.AddStmt(E->getSubExpr(I));
> -  Writer.AddSourceLocation(E->getEqualOrColonLoc(), Record);
> +    Record.AddStmt(E->getSubExpr(I));
> +  Record.AddSourceLocation(E->getEqualOrColonLoc());
>    Record.push_back(E->usesGNUSyntax());
>    for (DesignatedInitExpr::designators_iterator D =
> E->designators_begin(),
>                                               DEnd = E->designators_end();
> @@ -746,25 +756,25 @@ void ASTStmtWriter::VisitDesignatedInitE
>      if (D->isFieldDesignator()) {
>        if (FieldDecl *Field = D->getField()) {
>          Record.push_back(serialization::DESIG_FIELD_DECL);
> -        Writer.AddDeclRef(Field, Record);
> +        Record.AddDeclRef(Field);
>        } else {
>          Record.push_back(serialization::DESIG_FIELD_NAME);
> -        Writer.AddIdentifierRef(D->getFieldName(), Record);
> +        Record.AddIdentifierRef(D->getFieldName());
>        }
> -      Writer.AddSourceLocation(D->getDotLoc(), Record);
> -      Writer.AddSourceLocation(D->getFieldLoc(), Record);
> +      Record.AddSourceLocation(D->getDotLoc());
> +      Record.AddSourceLocation(D->getFieldLoc());
>      } else if (D->isArrayDesignator()) {
>        Record.push_back(serialization::DESIG_ARRAY);
>        Record.push_back(D->getFirstExprIndex());
> -      Writer.AddSourceLocation(D->getLBracketLoc(), Record);
> -      Writer.AddSourceLocation(D->getRBracketLoc(), Record);
> +      Record.AddSourceLocation(D->getLBracketLoc());
> +      Record.AddSourceLocation(D->getRBracketLoc());
>      } else {
>        assert(D->isArrayRangeDesignator() && "Unknown designator");
>        Record.push_back(serialization::DESIG_ARRAY_RANGE);
>        Record.push_back(D->getFirstExprIndex());
> -      Writer.AddSourceLocation(D->getLBracketLoc(), Record);
> -      Writer.AddSourceLocation(D->getEllipsisLoc(), Record);
> -      Writer.AddSourceLocation(D->getRBracketLoc(), Record);
> +      Record.AddSourceLocation(D->getLBracketLoc());
> +      Record.AddSourceLocation(D->getEllipsisLoc());
> +      Record.AddSourceLocation(D->getRBracketLoc());
>      }
>    }
>    Code = serialization::EXPR_DESIGNATED_INIT;
> @@ -772,8 +782,8 @@ void ASTStmtWriter::VisitDesignatedInitE
>
>  void
> ASTStmtWriter::VisitDesignatedInitUpdateExpr(DesignatedInitUpdateExpr *E) {
>    VisitExpr(E);
> -  Writer.AddStmt(E->getBase());
> -  Writer.AddStmt(E->getUpdater());
> +  Record.AddStmt(E->getBase());
> +  Record.AddStmt(E->getUpdater());
>    Code = serialization::EXPR_DESIGNATED_INIT_UPDATE;
>  }
>
> @@ -789,44 +799,44 @@ void ASTStmtWriter::VisitImplicitValueIn
>
>  void ASTStmtWriter::VisitVAArgExpr(VAArgExpr *E) {
>    VisitExpr(E);
> -  Writer.AddStmt(E->getSubExpr());
> -  Writer.AddTypeSourceInfo(E->getWrittenTypeInfo(), Record);
> -  Writer.AddSourceLocation(E->getBuiltinLoc(), Record);
> -  Writer.AddSourceLocation(E->getRParenLoc(), Record);
> +  Record.AddStmt(E->getSubExpr());
> +  Record.AddTypeSourceInfo(E->getWrittenTypeInfo());
> +  Record.AddSourceLocation(E->getBuiltinLoc());
> +  Record.AddSourceLocation(E->getRParenLoc());
>    Record.push_back(E->isMicrosoftABI());
>    Code = serialization::EXPR_VA_ARG;
>  }
>
>  void ASTStmtWriter::VisitAddrLabelExpr(AddrLabelExpr *E) {
>    VisitExpr(E);
> -  Writer.AddSourceLocation(E->getAmpAmpLoc(), Record);
> -  Writer.AddSourceLocation(E->getLabelLoc(), Record);
> -  Writer.AddDeclRef(E->getLabel(), Record);
> +  Record.AddSourceLocation(E->getAmpAmpLoc());
> +  Record.AddSourceLocation(E->getLabelLoc());
> +  Record.AddDeclRef(E->getLabel());
>    Code = serialization::EXPR_ADDR_LABEL;
>  }
>
>  void ASTStmtWriter::VisitStmtExpr(StmtExpr *E) {
>    VisitExpr(E);
> -  Writer.AddStmt(E->getSubStmt());
> -  Writer.AddSourceLocation(E->getLParenLoc(), Record);
> -  Writer.AddSourceLocation(E->getRParenLoc(), Record);
> +  Record.AddStmt(E->getSubStmt());
> +  Record.AddSourceLocation(E->getLParenLoc());
> +  Record.AddSourceLocation(E->getRParenLoc());
>    Code = serialization::EXPR_STMT;
>  }
>
>  void ASTStmtWriter::VisitChooseExpr(ChooseExpr *E) {
>    VisitExpr(E);
> -  Writer.AddStmt(E->getCond());
> -  Writer.AddStmt(E->getLHS());
> -  Writer.AddStmt(E->getRHS());
> -  Writer.AddSourceLocation(E->getBuiltinLoc(), Record);
> -  Writer.AddSourceLocation(E->getRParenLoc(), Record);
> +  Record.AddStmt(E->getCond());
> +  Record.AddStmt(E->getLHS());
> +  Record.AddStmt(E->getRHS());
> +  Record.AddSourceLocation(E->getBuiltinLoc());
> +  Record.AddSourceLocation(E->getRParenLoc());
>    Record.push_back(E->isConditionDependent() ? false :
> E->isConditionTrue());
>    Code = serialization::EXPR_CHOOSE;
>  }
>
>  void ASTStmtWriter::VisitGNUNullExpr(GNUNullExpr *E) {
>    VisitExpr(E);
> -  Writer.AddSourceLocation(E->getTokenLocation(), Record);
> +  Record.AddSourceLocation(E->getTokenLocation());
>    Code = serialization::EXPR_GNU_NULL;
>  }
>
> @@ -834,24 +844,24 @@ void ASTStmtWriter::VisitShuffleVectorEx
>    VisitExpr(E);
>    Record.push_back(E->getNumSubExprs());
>    for (unsigned I = 0, N = E->getNumSubExprs(); I != N; ++I)
> -    Writer.AddStmt(E->getExpr(I));
> -  Writer.AddSourceLocation(E->getBuiltinLoc(), Record);
> -  Writer.AddSourceLocation(E->getRParenLoc(), Record);
> +    Record.AddStmt(E->getExpr(I));
> +  Record.AddSourceLocation(E->getBuiltinLoc());
> +  Record.AddSourceLocation(E->getRParenLoc());
>    Code = serialization::EXPR_SHUFFLE_VECTOR;
>  }
>
>  void ASTStmtWriter::VisitConvertVectorExpr(ConvertVectorExpr *E) {
>    VisitExpr(E);
> -  Writer.AddSourceLocation(E->getBuiltinLoc(), Record);
> -  Writer.AddSourceLocation(E->getRParenLoc(), Record);
> -  Writer.AddTypeSourceInfo(E->getTypeSourceInfo(), Record);
> -  Writer.AddStmt(E->getSrcExpr());
> +  Record.AddSourceLocation(E->getBuiltinLoc());
> +  Record.AddSourceLocation(E->getRParenLoc());
> +  Record.AddTypeSourceInfo(E->getTypeSourceInfo());
> +  Record.AddStmt(E->getSrcExpr());
>    Code = serialization::EXPR_CONVERT_VECTOR;
>  }
>
>  void ASTStmtWriter::VisitBlockExpr(BlockExpr *E) {
>    VisitExpr(E);
> -  Writer.AddDeclRef(E->getBlockDecl(), Record);
> +  Record.AddDeclRef(E->getBlockDecl());
>    Code = serialization::EXPR_BLOCK;
>  }
>
> @@ -859,16 +869,16 @@ void ASTStmtWriter::VisitGenericSelectio
>    VisitExpr(E);
>    Record.push_back(E->getNumAssocs());
>
> -  Writer.AddStmt(E->getControllingExpr());
> +  Record.AddStmt(E->getControllingExpr());
>    for (unsigned I = 0, N = E->getNumAssocs(); I != N; ++I) {
> -    Writer.AddTypeSourceInfo(E->getAssocTypeSourceInfo(I), Record);
> -    Writer.AddStmt(E->getAssocExpr(I));
> +    Record.AddTypeSourceInfo(E->getAssocTypeSourceInfo(I));
> +    Record.AddStmt(E->getAssocExpr(I));
>    }
>    Record.push_back(E->isResultDependent() ? -1U : E->getResultIndex());
>
> -  Writer.AddSourceLocation(E->getGenericLoc(), Record);
> -  Writer.AddSourceLocation(E->getDefaultLoc(), Record);
> -  Writer.AddSourceLocation(E->getRParenLoc(), Record);
> +  Record.AddSourceLocation(E->getGenericLoc());
> +  Record.AddSourceLocation(E->getDefaultLoc());
> +  Record.AddSourceLocation(E->getRParenLoc());
>    Code = serialization::EXPR_GENERIC_SELECTION;
>  }
>
> @@ -882,10 +892,10 @@ void ASTStmtWriter::VisitPseudoObjectExp
>    result = (result == PseudoObjectExpr::NoResult ? 0 : result + 1);
>    Record.push_back(result);
>
> -  Writer.AddStmt(E->getSyntacticForm());
> +  Record.AddStmt(E->getSyntacticForm());
>    for (PseudoObjectExpr::semantics_iterator
>           i = E->semantics_begin(), e = E->semantics_end(); i != e; ++i) {
> -    Writer.AddStmt(*i);
> +    Record.AddStmt(*i);
>    }
>    Code = serialization::EXPR_PSEUDO_OBJECT;
>  }
> @@ -894,9 +904,9 @@ void ASTStmtWriter::VisitAtomicExpr(Atom
>    VisitExpr(E);
>    Record.push_back(E->getOp());
>    for (unsigned I = 0, N = E->getNumSubExprs(); I != N; ++I)
> -    Writer.AddStmt(E->getSubExprs()[I]);
> -  Writer.AddSourceLocation(E->getBuiltinLoc(), Record);
> -  Writer.AddSourceLocation(E->getRParenLoc(), Record);
> +    Record.AddStmt(E->getSubExprs()[I]);
> +  Record.AddSourceLocation(E->getBuiltinLoc());
> +  Record.AddSourceLocation(E->getRParenLoc());
>    Code = serialization::EXPR_ATOMIC;
>  }
>
> @@ -906,16 +916,16 @@ void ASTStmtWriter::VisitAtomicExpr(Atom
>
>  void ASTStmtWriter::VisitObjCStringLiteral(ObjCStringLiteral *E) {
>    VisitExpr(E);
> -  Writer.AddStmt(E->getString());
> -  Writer.AddSourceLocation(E->getAtLoc(), Record);
> +  Record.AddStmt(E->getString());
> +  Record.AddSourceLocation(E->getAtLoc());
>    Code = serialization::EXPR_OBJC_STRING_LITERAL;
>  }
>
>  void ASTStmtWriter::VisitObjCBoxedExpr(ObjCBoxedExpr *E) {
>    VisitExpr(E);
> -  Writer.AddStmt(E->getSubExpr());
> -  Writer.AddDeclRef(E->getBoxingMethod(), Record);
> -  Writer.AddSourceRange(E->getSourceRange(), Record);
> +  Record.AddStmt(E->getSubExpr());
> +  Record.AddDeclRef(E->getBoxingMethod());
> +  Record.AddSourceRange(E->getSourceRange());
>    Code = serialization::EXPR_OBJC_BOXED_EXPRESSION;
>  }
>
> @@ -923,9 +933,9 @@ void ASTStmtWriter::VisitObjCArrayLitera
>    VisitExpr(E);
>    Record.push_back(E->getNumElements());
>    for (unsigned i = 0; i < E->getNumElements(); i++)
> -    Writer.AddStmt(E->getElement(i));
> -  Writer.AddDeclRef(E->getArrayWithObjectsMethod(), Record);
> -  Writer.AddSourceRange(E->getSourceRange(), Record);
> +    Record.AddStmt(E->getElement(i));
> +  Record.AddDeclRef(E->getArrayWithObjectsMethod());
> +  Record.AddSourceRange(E->getSourceRange());
>    Code = serialization::EXPR_OBJC_ARRAY_LITERAL;
>  }
>
> @@ -935,10 +945,10 @@ void ASTStmtWriter::VisitObjCDictionaryL
>    Record.push_back(E->HasPackExpansions);
>    for (unsigned i = 0; i < E->getNumElements(); i++) {
>      ObjCDictionaryElement Element = E->getKeyValueElement(i);
> -    Writer.AddStmt(Element.Key);
> -    Writer.AddStmt(Element.Value);
> +    Record.AddStmt(Element.Key);
> +    Record.AddStmt(Element.Value);
>      if (E->HasPackExpansions) {
> -      Writer.AddSourceLocation(Element.EllipsisLoc, Record);
> +      Record.AddSourceLocation(Element.EllipsisLoc);
>        unsigned NumExpansions = 0;
>        if (Element.NumExpansions)
>          NumExpansions = *Element.NumExpansions + 1;
> @@ -946,42 +956,42 @@ void ASTStmtWriter::VisitObjCDictionaryL
>      }
>    }
>
> -  Writer.AddDeclRef(E->getDictWithObjectsMethod(), Record);
> -  Writer.AddSourceRange(E->getSourceRange(), Record);
> +  Record.AddDeclRef(E->getDictWithObjectsMethod());
> +  Record.AddSourceRange(E->getSourceRange());
>    Code = serialization::EXPR_OBJC_DICTIONARY_LITERAL;
>  }
>
>  void ASTStmtWriter::VisitObjCEncodeExpr(ObjCEncodeExpr *E) {
>    VisitExpr(E);
> -  Writer.AddTypeSourceInfo(E->getEncodedTypeSourceInfo(), Record);
> -  Writer.AddSourceLocation(E->getAtLoc(), Record);
> -  Writer.AddSourceLocation(E->getRParenLoc(), Record);
> +  Record.AddTypeSourceInfo(E->getEncodedTypeSourceInfo());
> +  Record.AddSourceLocation(E->getAtLoc());
> +  Record.AddSourceLocation(E->getRParenLoc());
>    Code = serialization::EXPR_OBJC_ENCODE;
>  }
>
>  void ASTStmtWriter::VisitObjCSelectorExpr(ObjCSelectorExpr *E) {
>    VisitExpr(E);
> -  Writer.AddSelectorRef(E->getSelector(), Record);
> -  Writer.AddSourceLocation(E->getAtLoc(), Record);
> -  Writer.AddSourceLocation(E->getRParenLoc(), Record);
> +  Record.AddSelectorRef(E->getSelector());
> +  Record.AddSourceLocation(E->getAtLoc());
> +  Record.AddSourceLocation(E->getRParenLoc());
>    Code = serialization::EXPR_OBJC_SELECTOR_EXPR;
>  }
>
>  void ASTStmtWriter::VisitObjCProtocolExpr(ObjCProtocolExpr *E) {
>    VisitExpr(E);
> -  Writer.AddDeclRef(E->getProtocol(), Record);
> -  Writer.AddSourceLocation(E->getAtLoc(), Record);
> -  Writer.AddSourceLocation(E->ProtoLoc, Record);
> -  Writer.AddSourceLocation(E->getRParenLoc(), Record);
> +  Record.AddDeclRef(E->getProtocol());
> +  Record.AddSourceLocation(E->getAtLoc());
> +  Record.AddSourceLocation(E->ProtoLoc);
> +  Record.AddSourceLocation(E->getRParenLoc());
>    Code = serialization::EXPR_OBJC_PROTOCOL_EXPR;
>  }
>
>  void ASTStmtWriter::VisitObjCIvarRefExpr(ObjCIvarRefExpr *E) {
>    VisitExpr(E);
> -  Writer.AddDeclRef(E->getDecl(), Record);
> -  Writer.AddSourceLocation(E->getLocation(), Record);
> -  Writer.AddSourceLocation(E->getOpLoc(), Record);
> -  Writer.AddStmt(E->getBase());
> +  Record.AddDeclRef(E->getDecl());
> +  Record.AddSourceLocation(E->getLocation());
> +  Record.AddSourceLocation(E->getOpLoc());
> +  Record.AddStmt(E->getBase());
>    Record.push_back(E->isArrow());
>    Record.push_back(E->isFreeIvar());
>    Code = serialization::EXPR_OBJC_IVAR_REF_EXPR;
> @@ -992,22 +1002,22 @@ void ASTStmtWriter::VisitObjCPropertyRef
>    Record.push_back(E->SetterAndMethodRefFlags.getInt());
>    Record.push_back(E->isImplicitProperty());
>    if (E->isImplicitProperty()) {
> -    Writer.AddDeclRef(E->getImplicitPropertyGetter(), Record);
> -    Writer.AddDeclRef(E->getImplicitPropertySetter(), Record);
> +    Record.AddDeclRef(E->getImplicitPropertyGetter());
> +    Record.AddDeclRef(E->getImplicitPropertySetter());
>    } else {
> -    Writer.AddDeclRef(E->getExplicitProperty(), Record);
> +    Record.AddDeclRef(E->getExplicitProperty());
>    }
> -  Writer.AddSourceLocation(E->getLocation(), Record);
> -  Writer.AddSourceLocation(E->getReceiverLocation(), Record);
> +  Record.AddSourceLocation(E->getLocation());
> +  Record.AddSourceLocation(E->getReceiverLocation());
>    if (E->isObjectReceiver()) {
>      Record.push_back(0);
> -    Writer.AddStmt(E->getBase());
> +    Record.AddStmt(E->getBase());
>    } else if (E->isSuperReceiver()) {
>      Record.push_back(1);
> -    Writer.AddTypeRef(E->getSuperReceiverType(), Record);
> +    Record.AddTypeRef(E->getSuperReceiverType());
>    } else {
>      Record.push_back(2);
> -    Writer.AddDeclRef(E->getClassReceiver(), Record);
> +    Record.AddDeclRef(E->getClassReceiver());
>    }
>
>    Code = serialization::EXPR_OBJC_PROPERTY_REF_EXPR;
> @@ -1015,11 +1025,11 @@ void ASTStmtWriter::VisitObjCPropertyRef
>
>  void ASTStmtWriter::VisitObjCSubscriptRefExpr(ObjCSubscriptRefExpr *E) {
>    VisitExpr(E);
> -  Writer.AddSourceLocation(E->getRBracket(), Record);
> -  Writer.AddStmt(E->getBaseExpr());
> -  Writer.AddStmt(E->getKeyExpr());
> -  Writer.AddDeclRef(E->getAtIndexMethodDecl(), Record);
> -  Writer.AddDeclRef(E->setAtIndexMethodDecl(), Record);
> +  Record.AddSourceLocation(E->getRBracket());
> +  Record.AddStmt(E->getBaseExpr());
> +  Record.AddStmt(E->getKeyExpr());
> +  Record.AddDeclRef(E->getAtIndexMethodDecl());
> +  Record.AddDeclRef(E->setAtIndexMethodDecl());
>
>    Code = serialization::EXPR_OBJC_SUBSCRIPT_REF_EXPR;
>  }
> @@ -1034,101 +1044,101 @@ void ASTStmtWriter::VisitObjCMessageExpr
>    Record.push_back((unsigned)E->getReceiverKind()); // FIXME: stable
> encoding
>    switch (E->getReceiverKind()) {
>    case ObjCMessageExpr::Instance:
> -    Writer.AddStmt(E->getInstanceReceiver());
> +    Record.AddStmt(E->getInstanceReceiver());
>      break;
>
>    case ObjCMessageExpr::Class:
> -    Writer.AddTypeSourceInfo(E->getClassReceiverTypeInfo(), Record);
> +    Record.AddTypeSourceInfo(E->getClassReceiverTypeInfo());
>      break;
>
>    case ObjCMessageExpr::SuperClass:
>    case ObjCMessageExpr::SuperInstance:
> -    Writer.AddTypeRef(E->getSuperType(), Record);
> -    Writer.AddSourceLocation(E->getSuperLoc(), Record);
> +    Record.AddTypeRef(E->getSuperType());
> +    Record.AddSourceLocation(E->getSuperLoc());
>      break;
>    }
>
>    if (E->getMethodDecl()) {
>      Record.push_back(1);
> -    Writer.AddDeclRef(E->getMethodDecl(), Record);
> +    Record.AddDeclRef(E->getMethodDecl());
>    } else {
>      Record.push_back(0);
> -    Writer.AddSelectorRef(E->getSelector(), Record);
> +    Record.AddSelectorRef(E->getSelector());
>    }
>
> -  Writer.AddSourceLocation(E->getLeftLoc(), Record);
> -  Writer.AddSourceLocation(E->getRightLoc(), Record);
> +  Record.AddSourceLocation(E->getLeftLoc());
> +  Record.AddSourceLocation(E->getRightLoc());
>
>    for (CallExpr::arg_iterator Arg = E->arg_begin(), ArgEnd = E->arg_end();
>         Arg != ArgEnd; ++Arg)
> -    Writer.AddStmt(*Arg);
> +    Record.AddStmt(*Arg);
>
>    SourceLocation *Locs = E->getStoredSelLocs();
>    for (unsigned i = 0, e = E->getNumStoredSelLocs(); i != e; ++i)
> -    Writer.AddSourceLocation(Locs[i], Record);
> +    Record.AddSourceLocation(Locs[i]);
>
>    Code = serialization::EXPR_OBJC_MESSAGE_EXPR;
>  }
>
>  void ASTStmtWriter::VisitObjCForCollectionStmt(ObjCForCollectionStmt *S) {
>    VisitStmt(S);
> -  Writer.AddStmt(S->getElement());
> -  Writer.AddStmt(S->getCollection());
> -  Writer.AddStmt(S->getBody());
> -  Writer.AddSourceLocation(S->getForLoc(), Record);
> -  Writer.AddSourceLocation(S->getRParenLoc(), Record);
> +  Record.AddStmt(S->getElement());
> +  Record.AddStmt(S->getCollection());
> +  Record.AddStmt(S->getBody());
> +  Record.AddSourceLocation(S->getForLoc());
> +  Record.AddSourceLocation(S->getRParenLoc());
>    Code = serialization::STMT_OBJC_FOR_COLLECTION;
>  }
>
>  void ASTStmtWriter::VisitObjCAtCatchStmt(ObjCAtCatchStmt *S) {
> -  Writer.AddStmt(S->getCatchBody());
> -  Writer.AddDeclRef(S->getCatchParamDecl(), Record);
> -  Writer.AddSourceLocation(S->getAtCatchLoc(), Record);
> -  Writer.AddSourceLocation(S->getRParenLoc(), Record);
> +  Record.AddStmt(S->getCatchBody());
> +  Record.AddDeclRef(S->getCatchParamDecl());
> +  Record.AddSourceLocation(S->getAtCatchLoc());
> +  Record.AddSourceLocation(S->getRParenLoc());
>    Code = serialization::STMT_OBJC_CATCH;
>  }
>
>  void ASTStmtWriter::VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *S) {
> -  Writer.AddStmt(S->getFinallyBody());
> -  Writer.AddSourceLocation(S->getAtFinallyLoc(), Record);
> +  Record.AddStmt(S->getFinallyBody());
> +  Record.AddSourceLocation(S->getAtFinallyLoc());
>    Code = serialization::STMT_OBJC_FINALLY;
>  }
>
>  void ASTStmtWriter::VisitObjCAutoreleasePoolStmt(ObjCAutoreleasePoolStmt
> *S) {
> -  Writer.AddStmt(S->getSubStmt());
> -  Writer.AddSourceLocation(S->getAtLoc(), Record);
> +  Record.AddStmt(S->getSubStmt());
> +  Record.AddSourceLocation(S->getAtLoc());
>    Code = serialization::STMT_OBJC_AUTORELEASE_POOL;
>  }
>
>  void ASTStmtWriter::VisitObjCAtTryStmt(ObjCAtTryStmt *S) {
>    Record.push_back(S->getNumCatchStmts());
>    Record.push_back(S->getFinallyStmt() != nullptr);
> -  Writer.AddStmt(S->getTryBody());
> +  Record.AddStmt(S->getTryBody());
>    for (unsigned I = 0, N = S->getNumCatchStmts(); I != N; ++I)
> -    Writer.AddStmt(S->getCatchStmt(I));
> +    Record.AddStmt(S->getCatchStmt(I));
>    if (S->getFinallyStmt())
> -    Writer.AddStmt(S->getFinallyStmt());
> -  Writer.AddSourceLocation(S->getAtTryLoc(), Record);
> +    Record.AddStmt(S->getFinallyStmt());
> +  Record.AddSourceLocation(S->getAtTryLoc());
>    Code = serialization::STMT_OBJC_AT_TRY;
>  }
>
>  void ASTStmtWriter::VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt
> *S) {
> -  Writer.AddStmt(S->getSynchExpr());
> -  Writer.AddStmt(S->getSynchBody());
> -  Writer.AddSourceLocation(S->getAtSynchronizedLoc(), Record);
> +  Record.AddStmt(S->getSynchExpr());
> +  Record.AddStmt(S->getSynchBody());
> +  Record.AddSourceLocation(S->getAtSynchronizedLoc());
>    Code = serialization::STMT_OBJC_AT_SYNCHRONIZED;
>  }
>
>  void ASTStmtWriter::VisitObjCAtThrowStmt(ObjCAtThrowStmt *S) {
> -  Writer.AddStmt(S->getThrowExpr());
> -  Writer.AddSourceLocation(S->getThrowLoc(), Record);
> +  Record.AddStmt(S->getThrowExpr());
> +  Record.AddSourceLocation(S->getThrowLoc());
>    Code = serialization::STMT_OBJC_AT_THROW;
>  }
>
>  void ASTStmtWriter::VisitObjCBoolLiteralExpr(ObjCBoolLiteralExpr *E) {
>    VisitExpr(E);
>    Record.push_back(E->getValue());
> -  Writer.AddSourceLocation(E->getLocation(), Record);
> +  Record.AddSourceLocation(E->getLocation());
>    Code = serialization::EXPR_OBJC_BOOL_LITERAL;
>  }
>
> @@ -1138,52 +1148,52 @@ void ASTStmtWriter::VisitObjCBoolLiteral
>
>  void ASTStmtWriter::VisitCXXCatchStmt(CXXCatchStmt *S) {
>    VisitStmt(S);
> -  Writer.AddSourceLocation(S->getCatchLoc(), Record);
> -  Writer.AddDeclRef(S->getExceptionDecl(), Record);
> -  Writer.AddStmt(S->getHandlerBlock());
> +  Record.AddSourceLocation(S->getCatchLoc());
> +  Record.AddDeclRef(S->getExceptionDecl());
> +  Record.AddStmt(S->getHandlerBlock());
>    Code = serialization::STMT_CXX_CATCH;
>  }
>
>  void ASTStmtWriter::VisitCXXTryStmt(CXXTryStmt *S) {
>    VisitStmt(S);
>    Record.push_back(S->getNumHandlers());
> -  Writer.AddSourceLocation(S->getTryLoc(), Record);
> -  Writer.AddStmt(S->getTryBlock());
> +  Record.AddSourceLocation(S->getTryLoc());
> +  Record.AddStmt(S->getTryBlock());
>    for (unsigned i = 0, e = S->getNumHandlers(); i != e; ++i)
> -    Writer.AddStmt(S->getHandler(i));
> +    Record.AddStmt(S->getHandler(i));
>    Code = serialization::STMT_CXX_TRY;
>  }
>
>  void ASTStmtWriter::VisitCXXForRangeStmt(CXXForRangeStmt *S) {
>    VisitStmt(S);
> -  Writer.AddSourceLocation(S->getForLoc(), Record);
> -  Writer.AddSourceLocation(S->getCoawaitLoc(), Record);
> -  Writer.AddSourceLocation(S->getColonLoc(), Record);
> -  Writer.AddSourceLocation(S->getRParenLoc(), Record);
> -  Writer.AddStmt(S->getRangeStmt());
> -  Writer.AddStmt(S->getBeginStmt());
> -  Writer.AddStmt(S->getEndStmt());
> -  Writer.AddStmt(S->getCond());
> -  Writer.AddStmt(S->getInc());
> -  Writer.AddStmt(S->getLoopVarStmt());
> -  Writer.AddStmt(S->getBody());
> +  Record.AddSourceLocation(S->getForLoc());
> +  Record.AddSourceLocation(S->getCoawaitLoc());
> +  Record.AddSourceLocation(S->getColonLoc());
> +  Record.AddSourceLocation(S->getRParenLoc());
> +  Record.AddStmt(S->getRangeStmt());
> +  Record.AddStmt(S->getBeginStmt());
> +  Record.AddStmt(S->getEndStmt());
> +  Record.AddStmt(S->getCond());
> +  Record.AddStmt(S->getInc());
> +  Record.AddStmt(S->getLoopVarStmt());
> +  Record.AddStmt(S->getBody());
>    Code = serialization::STMT_CXX_FOR_RANGE;
>  }
>
>  void ASTStmtWriter::VisitMSDependentExistsStmt(MSDependentExistsStmt *S) {
>    VisitStmt(S);
> -  Writer.AddSourceLocation(S->getKeywordLoc(), Record);
> +  Record.AddSourceLocation(S->getKeywordLoc());
>    Record.push_back(S->isIfExists());
> -  Writer.AddNestedNameSpecifierLoc(S->getQualifierLoc(), Record);
> -  Writer.AddDeclarationNameInfo(S->getNameInfo(), Record);
> -  Writer.AddStmt(S->getSubStmt());
> +  Record.AddNestedNameSpecifierLoc(S->getQualifierLoc());
> +  Record.AddDeclarationNameInfo(S->getNameInfo());
> +  Record.AddStmt(S->getSubStmt());
>    Code = serialization::STMT_MS_DEPENDENT_EXISTS;
>  }
>
>  void ASTStmtWriter::VisitCXXOperatorCallExpr(CXXOperatorCallExpr *E) {
>    VisitCallExpr(E);
>    Record.push_back(E->getOperator());
> -  Writer.AddSourceRange(E->Range, Record);
> +  Record.AddSourceRange(E->Range);
>    Record.push_back(E->isFPContractable());
>    Code = serialization::EXPR_CXX_OPERATOR_CALL;
>  }
> @@ -1197,22 +1207,22 @@ void ASTStmtWriter::VisitCXXConstructExp
>    VisitExpr(E);
>    Record.push_back(E->getNumArgs());
>    for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
> -    Writer.AddStmt(E->getArg(I));
> -  Writer.AddDeclRef(E->getConstructor(), Record);
> -  Writer.AddSourceLocation(E->getLocation(), Record);
> +    Record.AddStmt(E->getArg(I));
> +  Record.AddDeclRef(E->getConstructor());
> +  Record.AddSourceLocation(E->getLocation());
>    Record.push_back(E->isElidable());
>    Record.push_back(E->hadMultipleCandidates());
>    Record.push_back(E->isListInitialization());
>    Record.push_back(E->isStdInitListInitialization());
>    Record.push_back(E->requiresZeroInitialization());
>    Record.push_back(E->getConstructionKind()); // FIXME: stable encoding
> -  Writer.AddSourceRange(E->getParenOrBraceRange(), Record);
> +  Record.AddSourceRange(E->getParenOrBraceRange());
>    Code = serialization::EXPR_CXX_CONSTRUCT;
>  }
>
>  void ASTStmtWriter::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr
> *E) {
>    VisitCXXConstructExpr(E);
> -  Writer.AddTypeSourceInfo(E->getTypeSourceInfo(), Record);
> +  Record.AddTypeSourceInfo(E->getTypeSourceInfo());
>    Code = serialization::EXPR_CXX_TEMPORARY_OBJECT;
>  }
>
> @@ -1223,18 +1233,18 @@ void ASTStmtWriter::VisitLambdaExpr(Lamb
>    if (E->HasArrayIndexVars)
>      NumArrayIndexVars = E->getArrayIndexStarts()[E->NumCaptures];
>    Record.push_back(NumArrayIndexVars);
> -  Writer.AddSourceRange(E->IntroducerRange, Record);
> +  Record.AddSourceRange(E->IntroducerRange);
>    Record.push_back(E->CaptureDefault); // FIXME: stable encoding
> -  Writer.AddSourceLocation(E->CaptureDefaultLoc, Record);
> +  Record.AddSourceLocation(E->CaptureDefaultLoc);
>    Record.push_back(E->ExplicitParams);
>    Record.push_back(E->ExplicitResultType);
> -  Writer.AddSourceLocation(E->ClosingBrace, Record);
> +  Record.AddSourceLocation(E->ClosingBrace);
>
>    // Add capture initializers.
>    for (LambdaExpr::capture_init_iterator C = E->capture_init_begin(),
>                                        CEnd = E->capture_init_end();
>         C != CEnd; ++C) {
> -    Writer.AddStmt(*C);
> +    Record.AddStmt(*C);
>    }
>
>    // Add array index variables, if any.
> @@ -1243,7 +1253,7 @@ void ASTStmtWriter::VisitLambdaExpr(Lamb
>                    E->getArrayIndexStarts() + E->NumCaptures + 1);
>      VarDecl **ArrayIndexVars = E->getArrayIndexVars();
>      for (unsigned I = 0; I != NumArrayIndexVars; ++I)
> -      Writer.AddDeclRef(ArrayIndexVars[I], Record);
> +      Record.AddDeclRef(ArrayIndexVars[I]);
>    }
>
>    Code = serialization::EXPR_LAMBDA;
> @@ -1251,15 +1261,14 @@ void ASTStmtWriter::VisitLambdaExpr(Lamb
>
>  void
> ASTStmtWriter::VisitCXXStdInitializerListExpr(CXXStdInitializerListExpr *E)
> {
>    VisitExpr(E);
> -  Writer.AddStmt(E->getSubExpr());
> +  Record.AddStmt(E->getSubExpr());
>    Code = serialization::EXPR_CXX_STD_INITIALIZER_LIST;
>  }
>
>  void ASTStmtWriter::VisitCXXNamedCastExpr(CXXNamedCastExpr *E) {
>    VisitExplicitCastExpr(E);
> -  Writer.AddSourceRange(SourceRange(E->getOperatorLoc(),
> E->getRParenLoc()),
> -                        Record);
> -  Writer.AddSourceRange(E->getAngleBrackets(), Record);
> +  Record.AddSourceRange(SourceRange(E->getOperatorLoc(),
> E->getRParenLoc()));
> +  Record.AddSourceRange(E->getAngleBrackets());
>  }
>
>  void ASTStmtWriter::VisitCXXStaticCastExpr(CXXStaticCastExpr *E) {
> @@ -1284,82 +1293,82 @@ void ASTStmtWriter::VisitCXXConstCastExp
>
>  void ASTStmtWriter::VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr *E) {
>    VisitExplicitCastExpr(E);
> -  Writer.AddSourceLocation(E->getLParenLoc(), Record);
> -  Writer.AddSourceLocation(E->getRParenLoc(), Record);
> +  Record.AddSourceLocation(E->getLParenLoc());
> +  Record.AddSourceLocation(E->getRParenLoc());
>    Code = serialization::EXPR_CXX_FUNCTIONAL_CAST;
>  }
>
>  void ASTStmtWriter::VisitUserDefinedLiteral(UserDefinedLiteral *E) {
>    VisitCallExpr(E);
> -  Writer.AddSourceLocation(E->UDSuffixLoc, Record);
> +  Record.AddSourceLocation(E->UDSuffixLoc);
>    Code = serialization::EXPR_USER_DEFINED_LITERAL;
>  }
>
>  void ASTStmtWriter::VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *E) {
>    VisitExpr(E);
>    Record.push_back(E->getValue());
> -  Writer.AddSourceLocation(E->getLocation(), Record);
> +  Record.AddSourceLocation(E->getLocation());
>    Code = serialization::EXPR_CXX_BOOL_LITERAL;
>  }
>
>  void ASTStmtWriter::VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *E) {
>    VisitExpr(E);
> -  Writer.AddSourceLocation(E->getLocation(), Record);
> +  Record.AddSourceLocation(E->getLocation());
>    Code = serialization::EXPR_CXX_NULL_PTR_LITERAL;
>  }
>
>  void ASTStmtWriter::VisitCXXTypeidExpr(CXXTypeidExpr *E) {
>    VisitExpr(E);
> -  Writer.AddSourceRange(E->getSourceRange(), Record);
> +  Record.AddSourceRange(E->getSourceRange());
>    if (E->isTypeOperand()) {
> -    Writer.AddTypeSourceInfo(E->getTypeOperandSourceInfo(), Record);
> +    Record.AddTypeSourceInfo(E->getTypeOperandSourceInfo());
>      Code = serialization::EXPR_CXX_TYPEID_TYPE;
>    } else {
> -    Writer.AddStmt(E->getExprOperand());
> +    Record.AddStmt(E->getExprOperand());
>      Code = serialization::EXPR_CXX_TYPEID_EXPR;
>    }
>  }
>
>  void ASTStmtWriter::VisitCXXThisExpr(CXXThisExpr *E) {
>    VisitExpr(E);
> -  Writer.AddSourceLocation(E->getLocation(), Record);
> +  Record.AddSourceLocation(E->getLocation());
>    Record.push_back(E->isImplicit());
>    Code = serialization::EXPR_CXX_THIS;
>  }
>
>  void ASTStmtWriter::VisitCXXThrowExpr(CXXThrowExpr *E) {
>    VisitExpr(E);
> -  Writer.AddSourceLocation(E->getThrowLoc(), Record);
> -  Writer.AddStmt(E->getSubExpr());
> +  Record.AddSourceLocation(E->getThrowLoc());
> +  Record.AddStmt(E->getSubExpr());
>    Record.push_back(E->isThrownVariableInScope());
>    Code = serialization::EXPR_CXX_THROW;
>  }
>
>  void ASTStmtWriter::VisitCXXDefaultArgExpr(CXXDefaultArgExpr *E) {
>    VisitExpr(E);
> -  Writer.AddDeclRef(E->getParam(), Record);
> -  Writer.AddSourceLocation(E->getUsedLocation(), Record);
> +  Record.AddDeclRef(E->getParam());
> +  Record.AddSourceLocation(E->getUsedLocation());
>    Code = serialization::EXPR_CXX_DEFAULT_ARG;
>  }
>
>  void ASTStmtWriter::VisitCXXDefaultInitExpr(CXXDefaultInitExpr *E) {
>    VisitExpr(E);
> -  Writer.AddDeclRef(E->getField(), Record);
> -  Writer.AddSourceLocation(E->getExprLoc(), Record);
> +  Record.AddDeclRef(E->getField());
> +  Record.AddSourceLocation(E->getExprLoc());
>    Code = serialization::EXPR_CXX_DEFAULT_INIT;
>  }
>
>  void ASTStmtWriter::VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *E) {
>    VisitExpr(E);
> -  Writer.AddCXXTemporary(E->getTemporary(), Record);
> -  Writer.AddStmt(E->getSubExpr());
> +  Record.AddCXXTemporary(E->getTemporary());
> +  Record.AddStmt(E->getSubExpr());
>    Code = serialization::EXPR_CXX_BIND_TEMPORARY;
>  }
>
>  void ASTStmtWriter::VisitCXXScalarValueInitExpr(CXXScalarValueInitExpr
> *E) {
>    VisitExpr(E);
> -  Writer.AddTypeSourceInfo(E->getTypeSourceInfo(), Record);
> -  Writer.AddSourceLocation(E->getRParenLoc(), Record);
> +  Record.AddTypeSourceInfo(E->getTypeSourceInfo());
> +  Record.AddSourceLocation(E->getRParenLoc());
>    Code = serialization::EXPR_CXX_SCALAR_VALUE_INIT;
>  }
>
> @@ -1370,15 +1379,15 @@ void ASTStmtWriter::VisitCXXNewExpr(CXXN
>    Record.push_back(E->doesUsualArrayDeleteWantSize());
>    Record.push_back(E->getNumPlacementArgs());
>    Record.push_back(E->StoredInitializationStyle);
> -  Writer.AddDeclRef(E->getOperatorNew(), Record);
> -  Writer.AddDeclRef(E->getOperatorDelete(), Record);
> -  Writer.AddTypeSourceInfo(E->getAllocatedTypeSourceInfo(), Record);
> -  Writer.AddSourceRange(E->getTypeIdParens(), Record);
> -  Writer.AddSourceRange(E->getSourceRange(), Record);
> -  Writer.AddSourceRange(E->getDirectInitRange(), Record);
> +  Record.AddDeclRef(E->getOperatorNew());
> +  Record.AddDeclRef(E->getOperatorDelete());
> +  Record.AddTypeSourceInfo(E->getAllocatedTypeSourceInfo());
> +  Record.AddSourceRange(E->getTypeIdParens());
> +  Record.AddSourceRange(E->getSourceRange());
> +  Record.AddSourceRange(E->getDirectInitRange());
>    for (CXXNewExpr::arg_iterator I = E->raw_arg_begin(), e =
> E->raw_arg_end();
>         I != e; ++I)
> -    Writer.AddStmt(*I);
> +    Record.AddStmt(*I);
>
>    Code = serialization::EXPR_CXX_NEW;
>  }
> @@ -1389,9 +1398,9 @@ void ASTStmtWriter::VisitCXXDeleteExpr(C
>    Record.push_back(E->isArrayForm());
>    Record.push_back(E->isArrayFormAsWritten());
>    Record.push_back(E->doesUsualArrayDeleteWantSize());
> -  Writer.AddDeclRef(E->getOperatorDelete(), Record);
> -  Writer.AddStmt(E->getArgument());
> -  Writer.AddSourceLocation(E->getSourceRange().getBegin(), Record);
> +  Record.AddDeclRef(E->getOperatorDelete());
> +  Record.AddStmt(E->getArgument());
> +  Record.AddSourceLocation(E->getSourceRange().getBegin());
>
>    Code = serialization::EXPR_CXX_DELETE;
>  }
> @@ -1399,20 +1408,20 @@ void ASTStmtWriter::VisitCXXDeleteExpr(C
>  void ASTStmtWriter::VisitCXXPseudoDestructorExpr(CXXPseudoDestructorExpr
> *E) {
>    VisitExpr(E);
>
> -  Writer.AddStmt(E->getBase());
> +  Record.AddStmt(E->getBase());
>    Record.push_back(E->isArrow());
> -  Writer.AddSourceLocation(E->getOperatorLoc(), Record);
> -  Writer.AddNestedNameSpecifierLoc(E->getQualifierLoc(), Record);
> -  Writer.AddTypeSourceInfo(E->getScopeTypeInfo(), Record);
> -  Writer.AddSourceLocation(E->getColonColonLoc(), Record);
> -  Writer.AddSourceLocation(E->getTildeLoc(), Record);
> +  Record.AddSourceLocation(E->getOperatorLoc());
> +  Record.AddNestedNameSpecifierLoc(E->getQualifierLoc());
> +  Record.AddTypeSourceInfo(E->getScopeTypeInfo());
> +  Record.AddSourceLocation(E->getColonColonLoc());
> +  Record.AddSourceLocation(E->getTildeLoc());
>
>    // PseudoDestructorTypeStorage.
> -  Writer.AddIdentifierRef(E->getDestroyedTypeIdentifier(), Record);
> +  Record.AddIdentifierRef(E->getDestroyedTypeIdentifier());
>    if (E->getDestroyedTypeIdentifier())
> -    Writer.AddSourceLocation(E->getDestroyedTypeLoc(), Record);
> +    Record.AddSourceLocation(E->getDestroyedTypeLoc());
>    else
> -    Writer.AddTypeSourceInfo(E->getDestroyedTypeInfo(), Record);
> +    Record.AddTypeSourceInfo(E->getDestroyedTypeInfo());
>
>    Code = serialization::EXPR_CXX_PSEUDO_DESTRUCTOR;
>  }
> @@ -1421,9 +1430,9 @@ void ASTStmtWriter::VisitExprWithCleanup
>    VisitExpr(E);
>    Record.push_back(E->getNumObjects());
>    for (unsigned i = 0, e = E->getNumObjects(); i != e; ++i)
> -    Writer.AddDeclRef(E->getObject(i), Record);
> +    Record.AddDeclRef(E->getObject(i));
>
> -  Writer.AddStmt(E->getSubExpr());
> +  Record.AddStmt(E->getSubExpr());
>    Code = serialization::EXPR_EXPR_WITH_CLEANUPS;
>  }
>
> @@ -1444,15 +1453,15 @@ ASTStmtWriter::VisitCXXDependentScopeMem
>    }
>
>    if (!E->isImplicitAccess())
> -    Writer.AddStmt(E->getBase());
> +    Record.AddStmt(E->getBase());
>    else
> -    Writer.AddStmt(nullptr);
> -  Writer.AddTypeRef(E->getBaseType(), Record);
> +    Record.AddStmt(nullptr);
> +  Record.AddTypeRef(E->getBaseType());
>    Record.push_back(E->isArrow());
> -  Writer.AddSourceLocation(E->getOperatorLoc(), Record);
> -  Writer.AddNestedNameSpecifierLoc(E->getQualifierLoc(), Record);
> -  Writer.AddDeclRef(E->getFirstQualifierFoundInScope(), Record);
> -  Writer.AddDeclarationNameInfo(E->MemberNameInfo, Record);
> +  Record.AddSourceLocation(E->getOperatorLoc());
> +  Record.AddNestedNameSpecifierLoc(E->getQualifierLoc());
> +  Record.AddDeclRef(E->getFirstQualifierFoundInScope());
> +  Record.AddDeclarationNameInfo(E->MemberNameInfo);
>    Code = serialization::EXPR_CXX_DEPENDENT_SCOPE_MEMBER;
>  }
>
> @@ -1472,8 +1481,8 @@ ASTStmtWriter::VisitDependentScopeDeclRe
>
> E->getTrailingObjects<TemplateArgumentLoc>());
>    }
>
> -  Writer.AddNestedNameSpecifierLoc(E->getQualifierLoc(), Record);
> -  Writer.AddDeclarationNameInfo(E->NameInfo, Record);
> +  Record.AddNestedNameSpecifierLoc(E->getQualifierLoc());
> +  Record.AddDeclarationNameInfo(E->NameInfo);
>    Code = serialization::EXPR_CXX_DEPENDENT_SCOPE_DECL_REF;
>  }
>
> @@ -1483,10 +1492,10 @@ ASTStmtWriter::VisitCXXUnresolvedConstru
>    Record.push_back(E->arg_size());
>    for (CXXUnresolvedConstructExpr::arg_iterator
>           ArgI = E->arg_begin(), ArgE = E->arg_end(); ArgI != ArgE; ++ArgI)
> -    Writer.AddStmt(*ArgI);
> -  Writer.AddTypeSourceInfo(E->getTypeSourceInfo(), Record);
> -  Writer.AddSourceLocation(E->getLParenLoc(), Record);
> -  Writer.AddSourceLocation(E->getRParenLoc(), Record);
> +    Record.AddStmt(*ArgI);
> +  Record.AddTypeSourceInfo(E->getTypeSourceInfo());
> +  Record.AddSourceLocation(E->getLParenLoc());
> +  Record.AddSourceLocation(E->getRParenLoc());
>    Code = serialization::EXPR_CXX_UNRESOLVED_CONSTRUCT;
>  }
>
> @@ -1507,21 +1516,21 @@ void ASTStmtWriter::VisitOverloadExpr(Ov
>    Record.push_back(E->getNumDecls());
>    for (OverloadExpr::decls_iterator
>           OvI = E->decls_begin(), OvE = E->decls_end(); OvI != OvE; ++OvI)
> {
> -    Writer.AddDeclRef(OvI.getDecl(), Record);
> +    Record.AddDeclRef(OvI.getDecl());
>      Record.push_back(OvI.getAccess());
>    }
>
> -  Writer.AddDeclarationNameInfo(E->NameInfo, Record);
> -  Writer.AddNestedNameSpecifierLoc(E->getQualifierLoc(), Record);
> +  Record.AddDeclarationNameInfo(E->NameInfo);
> +  Record.AddNestedNameSpecifierLoc(E->getQualifierLoc());
>  }
>
>  void ASTStmtWriter::VisitUnresolvedMemberExpr(UnresolvedMemberExpr *E) {
>    VisitOverloadExpr(E);
>    Record.push_back(E->isArrow());
>    Record.push_back(E->hasUnresolvedUsing());
> -  Writer.AddStmt(!E->isImplicitAccess() ? E->getBase() : nullptr);
> -  Writer.AddTypeRef(E->getBaseType(), Record);
> -  Writer.AddSourceLocation(E->getOperatorLoc(), Record);
> +  Record.AddStmt(!E->isImplicitAccess() ? E->getBase() : nullptr);
> +  Record.AddTypeRef(E->getBaseType());
> +  Record.AddSourceLocation(E->getOperatorLoc());
>    Code = serialization::EXPR_CXX_UNRESOLVED_MEMBER;
>  }
>
> @@ -1529,7 +1538,7 @@ void ASTStmtWriter::VisitUnresolvedLooku
>    VisitOverloadExpr(E);
>    Record.push_back(E->requiresADL());
>    Record.push_back(E->isOverloaded());
> -  Writer.AddDeclRef(E->getNamingClass(), Record);
> +  Record.AddDeclRef(E->getNamingClass());
>    Code = serialization::EXPR_CXX_UNRESOLVED_LOOKUP;
>  }
>
> @@ -1538,9 +1547,9 @@ void ASTStmtWriter::VisitTypeTraitExpr(T
>    Record.push_back(E->TypeTraitExprBits.NumArgs);
>    Record.push_back(E->TypeTraitExprBits.Kind); // FIXME: Stable encoding
>    Record.push_back(E->TypeTraitExprBits.Value);
> -  Writer.AddSourceRange(E->getSourceRange(), Record);
> +  Record.AddSourceRange(E->getSourceRange());
>    for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
> -    Writer.AddTypeSourceInfo(E->getArg(I), Record);
> +    Record.AddTypeSourceInfo(E->getArg(I));
>    Code = serialization::EXPR_TYPE_TRAIT;
>  }
>
> @@ -1548,8 +1557,8 @@ void ASTStmtWriter::VisitArrayTypeTraitE
>    VisitExpr(E);
>    Record.push_back(E->getTrait());
>    Record.push_back(E->getValue());
> -  Writer.AddSourceRange(E->getSourceRange(), Record);
> -  Writer.AddTypeSourceInfo(E->getQueriedTypeSourceInfo(), Record);
> +  Record.AddSourceRange(E->getSourceRange());
> +  Record.AddTypeSourceInfo(E->getQueriedTypeSourceInfo());
>    Code = serialization::EXPR_ARRAY_TYPE_TRAIT;
>  }
>
> @@ -1557,24 +1566,24 @@ void ASTStmtWriter::VisitExpressionTrait
>    VisitExpr(E);
>    Record.push_back(E->getTrait());
>    Record.push_back(E->getValue());
> -  Writer.AddSourceRange(E->getSourceRange(), Record);
> -  Writer.AddStmt(E->getQueriedExpression());
> +  Record.AddSourceRange(E->getSourceRange());
> +  Record.AddStmt(E->getQueriedExpression());
>    Code = serialization::EXPR_CXX_EXPRESSION_TRAIT;
>  }
>
>  void ASTStmtWriter::VisitCXXNoexceptExpr(CXXNoexceptExpr *E) {
>    VisitExpr(E);
>    Record.push_back(E->getValue());
> -  Writer.AddSourceRange(E->getSourceRange(), Record);
> -  Writer.AddStmt(E->getOperand());
> +  Record.AddSourceRange(E->getSourceRange());
> +  Record.AddStmt(E->getOperand());
>    Code = serialization::EXPR_CXX_NOEXCEPT;
>  }
>
>  void ASTStmtWriter::VisitPackExpansionExpr(PackExpansionExpr *E) {
>    VisitExpr(E);
> -  Writer.AddSourceLocation(E->getEllipsisLoc(), Record);
> +  Record.AddSourceLocation(E->getEllipsisLoc());
>    Record.push_back(E->NumExpansions);
> -  Writer.AddStmt(E->getPattern());
> +  Record.AddStmt(E->getPattern());
>    Code = serialization::EXPR_PACK_EXPANSION;
>  }
>
> @@ -1582,13 +1591,13 @@ void ASTStmtWriter::VisitSizeOfPackExpr(
>    VisitExpr(E);
>    Record.push_back(E->isPartiallySubstituted() ?
> E->getPartialArguments().size()
>                                                 : 0);
> -  Writer.AddSourceLocation(E->OperatorLoc, Record);
> -  Writer.AddSourceLocation(E->PackLoc, Record);
> -  Writer.AddSourceLocation(E->RParenLoc, Record);
> -  Writer.AddDeclRef(E->Pack, Record);
> +  Record.AddSourceLocation(E->OperatorLoc);
> +  Record.AddSourceLocation(E->PackLoc);
> +  Record.AddSourceLocation(E->RParenLoc);
> +  Record.AddDeclRef(E->Pack);
>    if (E->isPartiallySubstituted()) {
>      for (const auto &TA : E->getPartialArguments())
> -      Writer.AddTemplateArgument(TA, Record);
> +      Record.AddTemplateArgument(TA);
>    } else if (!E->isValueDependent()) {
>      Record.push_back(E->getPackLength());
>    }
> @@ -1598,55 +1607,55 @@ void ASTStmtWriter::VisitSizeOfPackExpr(
>  void ASTStmtWriter::VisitSubstNonTypeTemplateParmExpr(
>
>  SubstNonTypeTemplateParmExpr *E) {
>    VisitExpr(E);
> -  Writer.AddDeclRef(E->getParameter(), Record);
> -  Writer.AddSourceLocation(E->getNameLoc(), Record);
> -  Writer.AddStmt(E->getReplacement());
> +  Record.AddDeclRef(E->getParameter());
> +  Record.AddSourceLocation(E->getNameLoc());
> +  Record.AddStmt(E->getReplacement());
>    Code = serialization::EXPR_SUBST_NON_TYPE_TEMPLATE_PARM;
>  }
>
>  void ASTStmtWriter::VisitSubstNonTypeTemplateParmPackExpr(
>
>  SubstNonTypeTemplateParmPackExpr *E) {
>    VisitExpr(E);
> -  Writer.AddDeclRef(E->getParameterPack(), Record);
> -  Writer.AddTemplateArgument(E->getArgumentPack(), Record);
> -  Writer.AddSourceLocation(E->getParameterPackLocation(), Record);
> +  Record.AddDeclRef(E->getParameterPack());
> +  Record.AddTemplateArgument(E->getArgumentPack());
> +  Record.AddSourceLocation(E->getParameterPackLocation());
>    Code = serialization::EXPR_SUBST_NON_TYPE_TEMPLATE_PARM_PACK;
>  }
>
>  void ASTStmtWriter::VisitFunctionParmPackExpr(FunctionParmPackExpr *E) {
>    VisitExpr(E);
>    Record.push_back(E->getNumExpansions());
> -  Writer.AddDeclRef(E->getParameterPack(), Record);
> -  Writer.AddSourceLocation(E->getParameterPackLocation(), Record);
> +  Record.AddDeclRef(E->getParameterPack());
> +  Record.AddSourceLocation(E->getParameterPackLocation());
>    for (FunctionParmPackExpr::iterator I = E->begin(), End = E->end();
>         I != End; ++I)
> -    Writer.AddDeclRef(*I, Record);
> +    Record.AddDeclRef(*I);
>    Code = serialization::EXPR_FUNCTION_PARM_PACK;
>  }
>
>  void
> ASTStmtWriter::VisitMaterializeTemporaryExpr(MaterializeTemporaryExpr *E) {
>    VisitExpr(E);
> -  Writer.AddStmt(E->getTemporary());
> -  Writer.AddDeclRef(E->getExtendingDecl(), Record);
> +  Record.AddStmt(E->getTemporary());
> +  Record.AddDeclRef(E->getExtendingDecl());
>    Record.push_back(E->getManglingNumber());
>    Code = serialization::EXPR_MATERIALIZE_TEMPORARY;
>  }
>
>  void ASTStmtWriter::VisitCXXFoldExpr(CXXFoldExpr *E) {
>    VisitExpr(E);
> -  Writer.AddSourceLocation(E->LParenLoc, Record);
> -  Writer.AddSourceLocation(E->EllipsisLoc, Record);
> -  Writer.AddSourceLocation(E->RParenLoc, Record);
> -  Writer.AddStmt(E->SubExprs[0]);
> -  Writer.AddStmt(E->SubExprs[1]);
> +  Record.AddSourceLocation(E->LParenLoc);
> +  Record.AddSourceLocation(E->EllipsisLoc);
> +  Record.AddSourceLocation(E->RParenLoc);
> +  Record.AddStmt(E->SubExprs[0]);
> +  Record.AddStmt(E->SubExprs[1]);
>    Record.push_back(E->Opcode);
>    Code = serialization::EXPR_CXX_FOLD;
>  }
>
>  void ASTStmtWriter::VisitOpaqueValueExpr(OpaqueValueExpr *E) {
>    VisitExpr(E);
> -  Writer.AddStmt(E->getSourceExpr());
> -  Writer.AddSourceLocation(E->getLocation(), Record);
> +  Record.AddStmt(E->getSourceExpr());
> +  Record.AddSourceLocation(E->getLocation());
>    Code = serialization::EXPR_OPAQUE_VALUE;
>  }
>
> @@ -1662,7 +1671,7 @@ void ASTStmtWriter::VisitTypoExpr(TypoEx
>
>  void ASTStmtWriter::VisitCUDAKernelCallExpr(CUDAKernelCallExpr *E) {
>    VisitCallExpr(E);
> -  Writer.AddStmt(E->getConfig());
> +  Record.AddStmt(E->getConfig());
>    Code = serialization::EXPR_CUDA_KERNEL_CALL;
>  }
>
> @@ -1671,9 +1680,9 @@ void ASTStmtWriter::VisitCUDAKernelCallE
>
>  //===----------------------------------------------------------------------===//
>  void ASTStmtWriter::VisitAsTypeExpr(AsTypeExpr *E) {
>    VisitExpr(E);
> -  Writer.AddSourceLocation(E->getBuiltinLoc(), Record);
> -  Writer.AddSourceLocation(E->getRParenLoc(), Record);
> -  Writer.AddStmt(E->getSrcExpr());
> +  Record.AddSourceLocation(E->getBuiltinLoc());
> +  Record.AddSourceLocation(E->getRParenLoc());
> +  Record.AddStmt(E->getSrcExpr());
>    Code = serialization::EXPR_ASTYPE;
>  }
>
> @@ -1683,61 +1692,61 @@ void ASTStmtWriter::VisitAsTypeExpr(AsTy
>  void ASTStmtWriter::VisitMSPropertyRefExpr(MSPropertyRefExpr *E) {
>    VisitExpr(E);
>    Record.push_back(E->isArrow());
> -  Writer.AddStmt(E->getBaseExpr());
> -  Writer.AddNestedNameSpecifierLoc(E->getQualifierLoc(), Record);
> -  Writer.AddSourceLocation(E->getMemberLoc(), Record);
> -  Writer.AddDeclRef(E->getPropertyDecl(), Record);
> +  Record.AddStmt(E->getBaseExpr());
> +  Record.AddNestedNameSpecifierLoc(E->getQualifierLoc());
> +  Record.AddSourceLocation(E->getMemberLoc());
> +  Record.AddDeclRef(E->getPropertyDecl());
>    Code = serialization::EXPR_CXX_PROPERTY_REF_EXPR;
>  }
>
>  void ASTStmtWriter::VisitMSPropertySubscriptExpr(MSPropertySubscriptExpr
> *E) {
>    VisitExpr(E);
> -  Writer.AddStmt(E->getBase());
> -  Writer.AddStmt(E->getIdx());
> -  Writer.AddSourceLocation(E->getRBracketLoc(), Record);
> +  Record.AddStmt(E->getBase());
> +  Record.AddStmt(E->getIdx());
> +  Record.AddSourceLocation(E->getRBracketLoc());
>    Code = serialization::EXPR_CXX_PROPERTY_SUBSCRIPT_EXPR;
>  }
>
>  void ASTStmtWriter::VisitCXXUuidofExpr(CXXUuidofExpr *E) {
>    VisitExpr(E);
> -  Writer.AddSourceRange(E->getSourceRange(), Record);
> -  Writer.AddString(E->getUuidStr(), Record);
> +  Record.AddSourceRange(E->getSourceRange());
> +  Record.AddString(E->getUuidStr());
>    if (E->isTypeOperand()) {
> -    Writer.AddTypeSourceInfo(E->getTypeOperandSourceInfo(), Record);
> +    Record.AddTypeSourceInfo(E->getTypeOperandSourceInfo());
>      Code = serialization::EXPR_CXX_UUIDOF_TYPE;
>    } else {
> -    Writer.AddStmt(E->getExprOperand());
> +    Record.AddStmt(E->getExprOperand());
>      Code = serialization::EXPR_CXX_UUIDOF_EXPR;
>    }
>  }
>
>  void ASTStmtWriter::VisitSEHExceptStmt(SEHExceptStmt *S) {
>    VisitStmt(S);
> -  Writer.AddSourceLocation(S->getExceptLoc(), Record);
> -  Writer.AddStmt(S->getFilterExpr());
> -  Writer.AddStmt(S->getBlock());
> +  Record.AddSourceLocation(S->getExceptLoc());
> +  Record.AddStmt(S->getFilterExpr());
> +  Record.AddStmt(S->getBlock());
>    Code = serialization::STMT_SEH_EXCEPT;
>  }
>
>  void ASTStmtWriter::VisitSEHFinallyStmt(SEHFinallyStmt *S) {
>    VisitStmt(S);
> -  Writer.AddSourceLocation(S->getFinallyLoc(), Record);
> -  Writer.AddStmt(S->getBlock());
> +  Record.AddSourceLocation(S->getFinallyLoc());
> +  Record.AddStmt(S->getBlock());
>    Code = serialization::STMT_SEH_FINALLY;
>  }
>
>  void ASTStmtWriter::VisitSEHTryStmt(SEHTryStmt *S) {
>    VisitStmt(S);
>    Record.push_back(S->getIsCXXTry());
> -  Writer.AddSourceLocation(S->getTryLoc(), Record);
> -  Writer.AddStmt(S->getTryBlock());
> -  Writer.AddStmt(S->getHandler());
> +  Record.AddSourceLocation(S->getTryLoc());
> +  Record.AddStmt(S->getTryBlock());
> +  Record.AddStmt(S->getHandler());
>    Code = serialization::STMT_SEH_TRY;
>  }
>
>  void ASTStmtWriter::VisitSEHLeaveStmt(SEHLeaveStmt *S) {
>    VisitStmt(S);
> -  Writer.AddSourceLocation(S->getLeaveLoc(), Record);
> +  Record.AddSourceLocation(S->getLeaveLoc());
>    Code = serialization::STMT_SEH_LEAVE;
>  }
>
> @@ -1747,11 +1756,9 @@ void ASTStmtWriter::VisitSEHLeaveStmt(SE
>
>  namespace clang {
>  class OMPClauseWriter : public OMPClauseVisitor<OMPClauseWriter> {
> -  ASTStmtWriter *Writer;
> -  ASTWriter::RecordData &Record;
> +  ASTRecordWriter &Record;
>  public:
> -  OMPClauseWriter(ASTStmtWriter *W, ASTWriter::RecordData &Record)
> -    : Writer(W), Record(Record) { }
> +  OMPClauseWriter(ASTRecordWriter &Record) : Record(Record) {}
>  #define OPENMP_CLAUSE(Name, Class)    \
>    void Visit##Class(Class *S);
>  #include "clang/Basic/OpenMPKinds.def"
> @@ -1764,62 +1771,62 @@ public:
>  void OMPClauseWriter::writeClause(OMPClause *C) {
>    Record.push_back(C->getClauseKind());
>    Visit(C);
> -  Writer->Writer.AddSourceLocation(C->getLocStart(), Record);
> -  Writer->Writer.AddSourceLocation(C->getLocEnd(), Record);
> +  Record.AddSourceLocation(C->getLocStart());
> +  Record.AddSourceLocation(C->getLocEnd());
>  }
>
>  void OMPClauseWriter::VisitOMPClauseWithPreInit(OMPClauseWithPreInit *C) {
> -  Writer->Writer.AddStmt(C->getPreInitStmt());
> +  Record.AddStmt(C->getPreInitStmt());
>  }
>
>  void
> OMPClauseWriter::VisitOMPClauseWithPostUpdate(OMPClauseWithPostUpdate *C) {
>    VisitOMPClauseWithPreInit(C);
> -  Writer->Writer.AddStmt(C->getPostUpdateExpr());
> +  Record.AddStmt(C->getPostUpdateExpr());
>  }
>
>  void OMPClauseWriter::VisitOMPIfClause(OMPIfClause *C) {
>    Record.push_back(C->getNameModifier());
> -  Writer->Writer.AddSourceLocation(C->getNameModifierLoc(), Record);
> -  Writer->Writer.AddSourceLocation(C->getColonLoc(), Record);
> -  Writer->Writer.AddStmt(C->getCondition());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> +  Record.AddSourceLocation(C->getNameModifierLoc());
> +  Record.AddSourceLocation(C->getColonLoc());
> +  Record.AddStmt(C->getCondition());
> +  Record.AddSourceLocation(C->getLParenLoc());
>  }
>
>  void OMPClauseWriter::VisitOMPFinalClause(OMPFinalClause *C) {
> -  Writer->Writer.AddStmt(C->getCondition());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> +  Record.AddStmt(C->getCondition());
> +  Record.AddSourceLocation(C->getLParenLoc());
>  }
>
>  void OMPClauseWriter::VisitOMPNumThreadsClause(OMPNumThreadsClause *C) {
> -  Writer->Writer.AddStmt(C->getNumThreads());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> +  Record.AddStmt(C->getNumThreads());
> +  Record.AddSourceLocation(C->getLParenLoc());
>  }
>
>  void OMPClauseWriter::VisitOMPSafelenClause(OMPSafelenClause *C) {
> -  Writer->Writer.AddStmt(C->getSafelen());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> +  Record.AddStmt(C->getSafelen());
> +  Record.AddSourceLocation(C->getLParenLoc());
>  }
>
>  void OMPClauseWriter::VisitOMPSimdlenClause(OMPSimdlenClause *C) {
> -  Writer->Writer.AddStmt(C->getSimdlen());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> +  Record.AddStmt(C->getSimdlen());
> +  Record.AddSourceLocation(C->getLParenLoc());
>  }
>
>  void OMPClauseWriter::VisitOMPCollapseClause(OMPCollapseClause *C) {
> -  Writer->Writer.AddStmt(C->getNumForLoops());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> +  Record.AddStmt(C->getNumForLoops());
> +  Record.AddSourceLocation(C->getLParenLoc());
>  }
>
>  void OMPClauseWriter::VisitOMPDefaultClause(OMPDefaultClause *C) {
>    Record.push_back(C->getDefaultKind());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> -  Writer->Writer.AddSourceLocation(C->getDefaultKindKwLoc(), Record);
> +  Record.AddSourceLocation(C->getLParenLoc());
> +  Record.AddSourceLocation(C->getDefaultKindKwLoc());
>  }
>
>  void OMPClauseWriter::VisitOMPProcBindClause(OMPProcBindClause *C) {
>    Record.push_back(C->getProcBindKind());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> -  Writer->Writer.AddSourceLocation(C->getProcBindKindKwLoc(), Record);
> +  Record.AddSourceLocation(C->getLParenLoc());
> +  Record.AddSourceLocation(C->getProcBindKindKwLoc());
>  }
>
>  void OMPClauseWriter::VisitOMPScheduleClause(OMPScheduleClause *C) {
> @@ -1827,17 +1834,17 @@ void OMPClauseWriter::VisitOMPScheduleCl
>    Record.push_back(C->getScheduleKind());
>    Record.push_back(C->getFirstScheduleModifier());
>    Record.push_back(C->getSecondScheduleModifier());
> -  Writer->Writer.AddStmt(C->getChunkSize());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> -  Writer->Writer.AddSourceLocation(C->getFirstScheduleModifierLoc(),
> Record);
> -  Writer->Writer.AddSourceLocation(C->getSecondScheduleModifierLoc(),
> Record);
> -  Writer->Writer.AddSourceLocation(C->getScheduleKindLoc(), Record);
> -  Writer->Writer.AddSourceLocation(C->getCommaLoc(), Record);
> +  Record.AddStmt(C->getChunkSize());
> +  Record.AddSourceLocation(C->getLParenLoc());
> +  Record.AddSourceLocation(C->getFirstScheduleModifierLoc());
> +  Record.AddSourceLocation(C->getSecondScheduleModifierLoc());
> +  Record.AddSourceLocation(C->getScheduleKindLoc());
> +  Record.AddSourceLocation(C->getCommaLoc());
>  }
>
>  void OMPClauseWriter::VisitOMPOrderedClause(OMPOrderedClause *C) {
> -  Writer->Writer.AddStmt(C->getNumForLoops());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> +  Record.AddStmt(C->getNumForLoops());
> +  Record.AddSourceLocation(C->getLParenLoc());
>  }
>
>  void OMPClauseWriter::VisitOMPNowaitClause(OMPNowaitClause *) {}
> @@ -1864,225 +1871,225 @@ void OMPClauseWriter::VisitOMPNogroupCla
>
>  void OMPClauseWriter::VisitOMPPrivateClause(OMPPrivateClause *C) {
>    Record.push_back(C->varlist_size());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> +  Record.AddSourceLocation(C->getLParenLoc());
>    for (auto *VE : C->varlists()) {
> -    Writer->Writer.AddStmt(VE);
> +    Record.AddStmt(VE);
>    }
>    for (auto *VE : C->private_copies()) {
> -    Writer->Writer.AddStmt(VE);
> +    Record.AddStmt(VE);
>    }
>  }
>
>  void OMPClauseWriter::VisitOMPFirstprivateClause(OMPFirstprivateClause
> *C) {
>    Record.push_back(C->varlist_size());
>    VisitOMPClauseWithPreInit(C);
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> +  Record.AddSourceLocation(C->getLParenLoc());
>    for (auto *VE : C->varlists()) {
> -    Writer->Writer.AddStmt(VE);
> +    Record.AddStmt(VE);
>    }
>    for (auto *VE : C->private_copies()) {
> -    Writer->Writer.AddStmt(VE);
> +    Record.AddStmt(VE);
>    }
>    for (auto *VE : C->inits()) {
> -    Writer->Writer.AddStmt(VE);
> +    Record.AddStmt(VE);
>    }
>  }
>
>  void OMPClauseWriter::VisitOMPLastprivateClause(OMPLastprivateClause *C) {
>    Record.push_back(C->varlist_size());
>    VisitOMPClauseWithPostUpdate(C);
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> +  Record.AddSourceLocation(C->getLParenLoc());
>    for (auto *VE : C->varlists())
> -    Writer->Writer.AddStmt(VE);
> +    Record.AddStmt(VE);
>    for (auto *E : C->private_copies())
> -    Writer->Writer.AddStmt(E);
> +    Record.AddStmt(E);
>    for (auto *E : C->source_exprs())
> -    Writer->Writer.AddStmt(E);
> +    Record.AddStmt(E);
>    for (auto *E : C->destination_exprs())
> -    Writer->Writer.AddStmt(E);
> +    Record.AddStmt(E);
>    for (auto *E : C->assignment_ops())
> -    Writer->Writer.AddStmt(E);
> +    Record.AddStmt(E);
>  }
>
>  void OMPClauseWriter::VisitOMPSharedClause(OMPSharedClause *C) {
>    Record.push_back(C->varlist_size());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> +  Record.AddSourceLocation(C->getLParenLoc());
>    for (auto *VE : C->varlists())
> -    Writer->Writer.AddStmt(VE);
> +    Record.AddStmt(VE);
>  }
>
>  void OMPClauseWriter::VisitOMPReductionClause(OMPReductionClause *C) {
>    Record.push_back(C->varlist_size());
>    VisitOMPClauseWithPostUpdate(C);
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> -  Writer->Writer.AddSourceLocation(C->getColonLoc(), Record);
> -  Writer->Writer.AddNestedNameSpecifierLoc(C->getQualifierLoc(), Record);
> -  Writer->Writer.AddDeclarationNameInfo(C->getNameInfo(), Record);
> +  Record.AddSourceLocation(C->getLParenLoc());
> +  Record.AddSourceLocation(C->getColonLoc());
> +  Record.AddNestedNameSpecifierLoc(C->getQualifierLoc());
> +  Record.AddDeclarationNameInfo(C->getNameInfo());
>    for (auto *VE : C->varlists())
> -    Writer->Writer.AddStmt(VE);
> +    Record.AddStmt(VE);
>    for (auto *VE : C->privates())
> -    Writer->Writer.AddStmt(VE);
> +    Record.AddStmt(VE);
>    for (auto *E : C->lhs_exprs())
> -    Writer->Writer.AddStmt(E);
> +    Record.AddStmt(E);
>    for (auto *E : C->rhs_exprs())
> -    Writer->Writer.AddStmt(E);
> +    Record.AddStmt(E);
>    for (auto *E : C->reduction_ops())
> -    Writer->Writer.AddStmt(E);
> +    Record.AddStmt(E);
>  }
>
>  void OMPClauseWriter::VisitOMPLinearClause(OMPLinearClause *C) {
>    Record.push_back(C->varlist_size());
>    VisitOMPClauseWithPostUpdate(C);
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> -  Writer->Writer.AddSourceLocation(C->getColonLoc(), Record);
> +  Record.AddSourceLocation(C->getLParenLoc());
> +  Record.AddSourceLocation(C->getColonLoc());
>    Record.push_back(C->getModifier());
> -  Writer->Writer.AddSourceLocation(C->getModifierLoc(), Record);
> +  Record.AddSourceLocation(C->getModifierLoc());
>    for (auto *VE : C->varlists()) {
> -    Writer->Writer.AddStmt(VE);
> +    Record.AddStmt(VE);
>    }
>    for (auto *VE : C->privates()) {
> -    Writer->Writer.AddStmt(VE);
> +    Record.AddStmt(VE);
>    }
>    for (auto *VE : C->inits()) {
> -    Writer->Writer.AddStmt(VE);
> +    Record.AddStmt(VE);
>    }
>    for (auto *VE : C->updates()) {
> -    Writer->Writer.AddStmt(VE);
> +    Record.AddStmt(VE);
>    }
>    for (auto *VE : C->finals()) {
> -    Writer->Writer.AddStmt(VE);
> +    Record.AddStmt(VE);
>    }
> -  Writer->Writer.AddStmt(C->getStep());
> -  Writer->Writer.AddStmt(C->getCalcStep());
> +  Record.AddStmt(C->getStep());
> +  Record.AddStmt(C->getCalcStep());
>  }
>
>  void OMPClauseWriter::VisitOMPAlignedClause(OMPAlignedClause *C) {
>    Record.push_back(C->varlist_size());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> -  Writer->Writer.AddSourceLocation(C->getColonLoc(), Record);
> +  Record.AddSourceLocation(C->getLParenLoc());
> +  Record.AddSourceLocation(C->getColonLoc());
>    for (auto *VE : C->varlists())
> -    Writer->Writer.AddStmt(VE);
> -  Writer->Writer.AddStmt(C->getAlignment());
> +    Record.AddStmt(VE);
> +  Record.AddStmt(C->getAlignment());
>  }
>
>  void OMPClauseWriter::VisitOMPCopyinClause(OMPCopyinClause *C) {
>    Record.push_back(C->varlist_size());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> +  Record.AddSourceLocation(C->getLParenLoc());
>    for (auto *VE : C->varlists())
> -    Writer->Writer.AddStmt(VE);
> +    Record.AddStmt(VE);
>    for (auto *E : C->source_exprs())
> -    Writer->Writer.AddStmt(E);
> +    Record.AddStmt(E);
>    for (auto *E : C->destination_exprs())
> -    Writer->Writer.AddStmt(E);
> +    Record.AddStmt(E);
>    for (auto *E : C->assignment_ops())
> -    Writer->Writer.AddStmt(E);
> +    Record.AddStmt(E);
>  }
>
>  void OMPClauseWriter::VisitOMPCopyprivateClause(OMPCopyprivateClause *C) {
>    Record.push_back(C->varlist_size());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> +  Record.AddSourceLocation(C->getLParenLoc());
>    for (auto *VE : C->varlists())
> -    Writer->Writer.AddStmt(VE);
> +    Record.AddStmt(VE);
>    for (auto *E : C->source_exprs())
> -    Writer->Writer.AddStmt(E);
> +    Record.AddStmt(E);
>    for (auto *E : C->destination_exprs())
> -    Writer->Writer.AddStmt(E);
> +    Record.AddStmt(E);
>    for (auto *E : C->assignment_ops())
> -    Writer->Writer.AddStmt(E);
> +    Record.AddStmt(E);
>  }
>
>  void OMPClauseWriter::VisitOMPFlushClause(OMPFlushClause *C) {
>    Record.push_back(C->varlist_size());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> +  Record.AddSourceLocation(C->getLParenLoc());
>    for (auto *VE : C->varlists())
> -    Writer->Writer.AddStmt(VE);
> +    Record.AddStmt(VE);
>  }
>
>  void OMPClauseWriter::VisitOMPDependClause(OMPDependClause *C) {
>    Record.push_back(C->varlist_size());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> +  Record.AddSourceLocation(C->getLParenLoc());
>    Record.push_back(C->getDependencyKind());
> -  Writer->Writer.AddSourceLocation(C->getDependencyLoc(), Record);
> -  Writer->Writer.AddSourceLocation(C->getColonLoc(), Record);
> +  Record.AddSourceLocation(C->getDependencyLoc());
> +  Record.AddSourceLocation(C->getColonLoc());
>    for (auto *VE : C->varlists())
> -    Writer->Writer.AddStmt(VE);
> +    Record.AddStmt(VE);
>  }
>
>  void OMPClauseWriter::VisitOMPDeviceClause(OMPDeviceClause *C) {
> -  Writer->Writer.AddStmt(C->getDevice());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> +  Record.AddStmt(C->getDevice());
> +  Record.AddSourceLocation(C->getLParenLoc());
>  }
>
>  void OMPClauseWriter::VisitOMPMapClause(OMPMapClause *C) {
>    Record.push_back(C->varlist_size());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> +  Record.AddSourceLocation(C->getLParenLoc());
>    Record.push_back(C->getMapTypeModifier());
>    Record.push_back(C->getMapType());
> -  Writer->Writer.AddSourceLocation(C->getMapLoc(), Record);
> -  Writer->Writer.AddSourceLocation(C->getColonLoc(), Record);
> +  Record.AddSourceLocation(C->getMapLoc());
> +  Record.AddSourceLocation(C->getColonLoc());
>    for (auto *VE : C->varlists())
> -    Writer->Writer.AddStmt(VE);
> +    Record.AddStmt(VE);
>  }
>
>  void OMPClauseWriter::VisitOMPNumTeamsClause(OMPNumTeamsClause *C) {
> -  Writer->Writer.AddStmt(C->getNumTeams());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> +  Record.AddStmt(C->getNumTeams());
> +  Record.AddSourceLocation(C->getLParenLoc());
>  }
>
>  void OMPClauseWriter::VisitOMPThreadLimitClause(OMPThreadLimitClause *C) {
> -  Writer->Writer.AddStmt(C->getThreadLimit());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> +  Record.AddStmt(C->getThreadLimit());
> +  Record.AddSourceLocation(C->getLParenLoc());
>  }
>
>  void OMPClauseWriter::VisitOMPPriorityClause(OMPPriorityClause *C) {
> -  Writer->Writer.AddStmt(C->getPriority());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> +  Record.AddStmt(C->getPriority());
> +  Record.AddSourceLocation(C->getLParenLoc());
>  }
>
>  void OMPClauseWriter::VisitOMPGrainsizeClause(OMPGrainsizeClause *C) {
> -  Writer->Writer.AddStmt(C->getGrainsize());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> +  Record.AddStmt(C->getGrainsize());
> +  Record.AddSourceLocation(C->getLParenLoc());
>  }
>
>  void OMPClauseWriter::VisitOMPNumTasksClause(OMPNumTasksClause *C) {
> -  Writer->Writer.AddStmt(C->getNumTasks());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> +  Record.AddStmt(C->getNumTasks());
> +  Record.AddSourceLocation(C->getLParenLoc());
>  }
>
>  void OMPClauseWriter::VisitOMPHintClause(OMPHintClause *C) {
> -  Writer->Writer.AddStmt(C->getHint());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> +  Record.AddStmt(C->getHint());
> +  Record.AddSourceLocation(C->getLParenLoc());
>  }
>
>  void OMPClauseWriter::VisitOMPDistScheduleClause(OMPDistScheduleClause
> *C) {
>    VisitOMPClauseWithPreInit(C);
>    Record.push_back(C->getDistScheduleKind());
> -  Writer->Writer.AddStmt(C->getChunkSize());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> -  Writer->Writer.AddSourceLocation(C->getDistScheduleKindLoc(), Record);
> -  Writer->Writer.AddSourceLocation(C->getCommaLoc(), Record);
> +  Record.AddStmt(C->getChunkSize());
> +  Record.AddSourceLocation(C->getLParenLoc());
> +  Record.AddSourceLocation(C->getDistScheduleKindLoc());
> +  Record.AddSourceLocation(C->getCommaLoc());
>  }
>
>  void OMPClauseWriter::VisitOMPDefaultmapClause(OMPDefaultmapClause *C) {
>    Record.push_back(C->getDefaultmapKind());
>    Record.push_back(C->getDefaultmapModifier());
> -  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
> -  Writer->Writer.AddSourceLocation(C->getDefaultmapModifierLoc(), Record);
> -  Writer->Writer.AddSourceLocation(C->getDefaultmapKindLoc(), Record);
> +  Record.AddSourceLocation(C->getLParenLoc());
> +  Record.AddSourceLocation(C->getDefaultmapModifierLoc());
> +  Record.AddSourceLocation(C->getDefaultmapKindLoc());
>  }
>
>
>  //===----------------------------------------------------------------------===//
>  // OpenMP Directives.
>
>  //===----------------------------------------------------------------------===//
>  void ASTStmtWriter::VisitOMPExecutableDirective(OMPExecutableDirective
> *E) {
> -  Writer.AddSourceLocation(E->getLocStart(), Record);
> -  Writer.AddSourceLocation(E->getLocEnd(), Record);
> -  OMPClauseWriter ClauseWriter(this, Record);
> +  Record.AddSourceLocation(E->getLocStart());
> +  Record.AddSourceLocation(E->getLocEnd());
> +  OMPClauseWriter ClauseWriter(Record);
>    for (unsigned i = 0; i < E->getNumClauses(); ++i) {
>      ClauseWriter.writeClause(E->getClause(i));
>    }
>    if (E->hasAssociatedStmt())
> -    Writer.AddStmt(E->getAssociatedStmt());
> +    Record.AddStmt(E->getAssociatedStmt());
>  }
>
>  void ASTStmtWriter::VisitOMPLoopDirective(OMPLoopDirective *D) {
> @@ -2090,39 +2097,39 @@ void ASTStmtWriter::VisitOMPLoopDirectiv
>    Record.push_back(D->getNumClauses());
>    Record.push_back(D->getCollapsedNumber());
>    VisitOMPExecutableDirective(D);
> -  Writer.AddStmt(D->getIterationVariable());
> -  Writer.AddStmt(D->getLastIteration());
> -  Writer.AddStmt(D->getCalcLastIteration());
> -  Writer.AddStmt(D->getPreCond());
> -  Writer.AddStmt(D->getCond());
> -  Writer.AddStmt(D->getInit());
> -  Writer.AddStmt(D->getInc());
> -  Writer.AddStmt(D->getPreInits());
> +  Record.AddStmt(D->getIterationVariable());
> +  Record.AddStmt(D->getLastIteration());
> +  Record.AddStmt(D->getCalcLastIteration());
> +  Record.AddStmt(D->getPreCond());
> +  Record.AddStmt(D->getCond());
> +  Record.AddStmt(D->getInit());
> +  Record.AddStmt(D->getInc());
> +  Record.AddStmt(D->getPreInits());
>    if (isOpenMPWorksharingDirective(D->getDirectiveKind()) ||
>        isOpenMPTaskLoopDirective(D->getDirectiveKind()) ||
>        isOpenMPDistributeDirective(D->getDirectiveKind())) {
> -    Writer.AddStmt(D->getIsLastIterVariable());
> -    Writer.AddStmt(D->getLowerBoundVariable());
> -    Writer.AddStmt(D->getUpperBoundVariable());
> -    Writer.AddStmt(D->getStrideVariable());
> -    Writer.AddStmt(D->getEnsureUpperBound());
> -    Writer.AddStmt(D->getNextLowerBound());
> -    Writer.AddStmt(D->getNextUpperBound());
> +    Record.AddStmt(D->getIsLastIterVariable());
> +    Record.AddStmt(D->getLowerBoundVariable());
> +    Record.AddStmt(D->getUpperBoundVariable());
> +    Record.AddStmt(D->getStrideVariable());
> +    Record.AddStmt(D->getEnsureUpperBound());
> +    Record.AddStmt(D->getNextLowerBound());
> +    Record.AddStmt(D->getNextUpperBound());
>    }
>    for (auto I : D->counters()) {
> -    Writer.AddStmt(I);
> +    Record.AddStmt(I);
>    }
>    for (auto I : D->private_counters()) {
> -    Writer.AddStmt(I);
> +    Record.AddStmt(I);
>    }
>    for (auto I : D->inits()) {
> -    Writer.AddStmt(I);
> +    Record.AddStmt(I);
>    }
>    for (auto I : D->updates()) {
> -    Writer.AddStmt(I);
> +    Record.AddStmt(I);
>    }
>    for (auto I : D->finals()) {
> -    Writer.AddStmt(I);
> +    Record.AddStmt(I);
>    }
>  }
>
> @@ -2182,7 +2189,7 @@ void ASTStmtWriter::VisitOMPCriticalDire
>    VisitStmt(D);
>    Record.push_back(D->getNumClauses());
>    VisitOMPExecutableDirective(D);
> -  Writer.AddDeclarationNameInfo(D->getDirectiveName(), Record);
> +  Record.AddDeclarationNameInfo(D->getDirectiveName());
>    Code = serialization::STMT_OMP_CRITICAL_DIRECTIVE;
>  }
>
> @@ -2219,10 +2226,10 @@ void ASTStmtWriter::VisitOMPAtomicDirect
>    VisitStmt(D);
>    Record.push_back(D->getNumClauses());
>    VisitOMPExecutableDirective(D);
> -  Writer.AddStmt(D->getX());
> -  Writer.AddStmt(D->getV());
> -  Writer.AddStmt(D->getExpr());
> -  Writer.AddStmt(D->getUpdateExpr());
> +  Record.AddStmt(D->getX());
> +  Record.AddStmt(D->getV());
> +  Record.AddStmt(D->getExpr());
> +  Record.AddStmt(D->getUpdateExpr());
>    Record.push_back(D->isXLHSInRHSPart() ? 1 : 0);
>    Record.push_back(D->isPostfixUpdate() ? 1 : 0);
>    Code = serialization::STMT_OMP_ATOMIC_DIRECTIVE;
> @@ -2411,61 +2418,44 @@ void ASTWriter::WriteSubStmt(Stmt *S,
>    ParentStmtInserterRAII ParentStmtInserter(S, ParentStmts);
>  #endif
>
> -  // Redirect ASTWriter::AddStmt to collect sub-stmts.
> -  SmallVector<Stmt *, 16> SubStmts;
> -  CollectedStmts = &SubStmts;
> -
> -  Writer.Code = serialization::STMT_NULL_PTR;
> -  Writer.AbbrevToUse = 0;
>    Writer.Visit(S);
>
> -#ifndef NDEBUG
> -  if (Writer.Code == serialization::STMT_NULL_PTR) {
> -    SourceManager &SrcMgr
> -      = DeclIDs.begin()->first->getASTContext().getSourceManager();
> -    S->dump(SrcMgr);
> -    llvm_unreachable("Unhandled sub-statement writing AST file");
> -  }
> -#endif
> -
> -  // Revert ASTWriter::AddStmt.
> -  CollectedStmts = &StmtsToEmit;
> -
> -  // Write the sub-stmts in reverse order, last to first. When reading
> them back
> -  // we will read them in correct order by "pop"ing them from the Stmts
> stack.
> -  // This simplifies reading and allows to store a variable number of
> sub-stmts
> -  // without knowing it in advance.
> -  while (!SubStmts.empty())
> -    WriteSubStmt(SubStmts.pop_back_val(), SubStmtEntries, ParentStmts);
> -
> -  Stream.EmitRecord(Writer.Code, Record, Writer.AbbrevToUse);
> -
> -  SubStmtEntries[S] = Stream.GetCurrentBitNo();
> +  SubStmtEntries[S] = Writer.Emit(S);
>  }
>
>  /// \brief Flush all of the statements that have been added to the
>  /// queue via AddStmt().
> -void ASTWriter::FlushStmts() {
> -  RecordData Record;
> -
> +void ASTRecordWriter::FlushStmts() {
>    // We expect to be the only consumer of the two temporary statement
> maps,
>    // assert that they are empty.
> -  assert(SubStmtEntries.empty() && "unexpected entries in sub-stmt map");
> -  assert(ParentStmts.empty() && "unexpected entries in parent stmt map");
> +  assert(Writer->SubStmtEntries.empty() && "unexpected entries in
> sub-stmt map");
> +  assert(Writer->ParentStmts.empty() && "unexpected entries in parent
> stmt map");
>
>    for (unsigned I = 0, N = StmtsToEmit.size(); I != N; ++I) {
> -    WriteSubStmt(StmtsToEmit[I], SubStmtEntries, ParentStmts);
> +    Writer->WriteSubStmt(StmtsToEmit[I], Writer->SubStmtEntries,
> Writer->ParentStmts);
>
> -    assert(N == StmtsToEmit.size() &&
> -           "Substatement written via AddStmt rather than WriteSubStmt!");
> +    assert(N == StmtsToEmit.size() && "record modified while being
> written!");
>
>      // Note that we are at the end of a full expression. Any
>      // expression records that follow this one are part of a different
>      // expression.
> -    Stream.EmitRecord(serialization::STMT_STOP, Record);
> +    Writer->Stream.EmitRecord(serialization::STMT_STOP,
> ArrayRef<uint32_t>());
> +
> +    Writer->SubStmtEntries.clear();
> +    Writer->ParentStmts.clear();
> +  }
>
> -    SubStmtEntries.clear();
> -    ParentStmts.clear();
> +  StmtsToEmit.clear();
> +}
> +
> +void ASTRecordWriter::FlushSubStmts() {
> +  // For a nested statement, write out the substatements in reverse order
> (so
> +  // that a simple stack machine can be used when loading), and don't
> emit a
> +  // STMT_STOP after each one.
> +  for (unsigned I = 0, N = StmtsToEmit.size(); I != N; ++I) {
> +    Writer->WriteSubStmt(StmtsToEmit[N - I - 1],
> +                         Writer->SubStmtEntries, Writer->ParentStmts);
> +    assert(N == StmtsToEmit.size() && "record modified while being
> written!");
>    }
>
>    StmtsToEmit.clear();
>
> Modified: cfe/trunk/utils/TableGen/ClangAttrEmitter.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/utils/TableGen/ClangAttrEmitter.cpp?rev=265518&r1=265517&r2=265518&view=diff
>
> ==============================================================================
> --- cfe/trunk/utils/TableGen/ClangAttrEmitter.cpp (original)
> +++ cfe/trunk/utils/TableGen/ClangAttrEmitter.cpp Wed Apr  6 01:26:08 2016
> @@ -87,16 +87,13 @@ static std::string ReadPCHRecord(StringR
>
>  // Assumes that the way to get the value is SA->getname()
>  static std::string WritePCHRecord(StringRef type, StringRef name) {
> -  return StringSwitch<std::string>(type)
> -    .EndsWith("Decl *", "AddDeclRef(" + std::string(name) +
> -                        ", Record);\n")
> -    .Case("TypeSourceInfo *",
> -          "AddTypeSourceInfo(" + std::string(name) + ", Record);\n")
> +  return "Record." + StringSwitch<std::string>(type)
> +    .EndsWith("Decl *", "AddDeclRef(" + std::string(name) + ");\n")
> +    .Case("TypeSourceInfo *", "AddTypeSourceInfo(" + std::string(name) +
> ");\n")
>      .Case("Expr *", "AddStmt(" + std::string(name) + ");\n")
> -    .Case("IdentifierInfo *",
> -          "AddIdentifierRef(" + std::string(name) + ", Record);\n")
> -    .Case("StringRef", "AddString(" + std::string(name) + ", Record);\n")
> -    .Default("Record.push_back(" + std::string(name) + ");\n");
> +    .Case("IdentifierInfo *", "AddIdentifierRef(" + std::string(name) +
> ");\n")
> +    .Case("StringRef", "AddString(" + std::string(name) + ");\n")
> +    .Default("push_back(" + std::string(name) + ");\n");
>  }
>
>  // Normalize attribute name by removing leading and trailing
> @@ -371,7 +368,7 @@ namespace {
>        OS << getLowerName();
>      }
>      void writePCHWrite(raw_ostream &OS) const override {
> -      OS << "    AddString(SA->get" << getUpperName() << "(), Record);\n";
> +      OS << "    Record.AddString(SA->get" << getUpperName() << "());\n";
>      }
>      void writeValue(raw_ostream &OS) const override {
>        OS << "\\\"\" << get" << getUpperName() << "() << \"\\\"";
> @@ -487,10 +484,10 @@ namespace {
>      void writePCHWrite(raw_ostream &OS) const override {
>        OS << "    Record.push_back(SA->is" << getUpperName() <<
> "Expr());\n";
>        OS << "    if (SA->is" << getUpperName() << "Expr())\n";
> -      OS << "      AddStmt(SA->get" << getUpperName() << "Expr());\n";
> +      OS << "      Record.AddStmt(SA->get" << getUpperName() <<
> "Expr());\n";
>        OS << "    else\n";
> -      OS << "      AddTypeSourceInfo(SA->get" << getUpperName()
> -         << "Type(), Record);\n";
> +      OS << "      Record.AddTypeSourceInfo(SA->get" << getUpperName()
> +         << "Type());\n";
>      }
>      void writeValue(raw_ostream &OS) const override {
>        OS << "\";\n";
> @@ -887,7 +884,7 @@ namespace {
>        OS << getLowerName();
>      }
>      void writePCHWrite(raw_ostream &OS) const override {
> -      OS << "    AddVersionTuple(SA->get" << getUpperName() << "(),
> Record);\n";
> +      OS << "    Record.AddVersionTuple(SA->get" << getUpperName() <<
> "());\n";
>      }
>      void writeValue(raw_ostream &OS) const override {
>        OS << getLowerName() << "=\" << get" << getUpperName() << "() <<
> \"";
>
>
> _______________________________________________
> cfe-commits mailing list
> cfe-commits at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/cfe-commits/attachments/20160406/e010b9d8/attachment-0001.html>


More information about the cfe-commits mailing list