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

Richard Smith via cfe-commits cfe-commits at lists.llvm.org
Wed Apr 6 10:12:15 PDT 2016


Thanks for the quick revert, turned out to be an iterator invalidation
issue (the msan bot was *extremely* useful in tracking this down); relanded
in r265564.

On Wed, Apr 6, 2016 at 3:04 AM, Dmitry Polukhin <dmitry.polukhin at gmail.com>
wrote:

> 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
>>
>
>
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