r247233 - EmitRecord* API change: accepts ArrayRef instead of a SmallVector (NFC)

David Blaikie via cfe-commits cfe-commits at lists.llvm.org
Thu Sep 10 11:46:51 PDT 2015


On Thu, Sep 10, 2015 at 11:39 AM, Richard Smith <richard at metafoo.co.uk>
wrote:

> On Thu, Sep 10, 2015 at 9:13 AM, David Blaikie via cfe-commits <
> cfe-commits at lists.llvm.org> wrote:
>
>>
>>
>> On Thu, Sep 10, 2015 at 9:07 AM, Mehdi Amini <mehdi.amini at apple.com>
>> wrote:
>>
>>>
>>> On Sep 10, 2015, at 9:02 AM, David Blaikie <dblaikie at gmail.com> wrote:
>>>
>>>
>>>
>>> On Thu, Sep 10, 2015 at 9:00 AM, Mehdi Amini <mehdi.amini at apple.com>
>>> wrote:
>>>
>>>>
>>>> On Sep 9, 2015, at 7:06 PM, David Blaikie <dblaikie at gmail.com> wrote:
>>>>
>>>>
>>>>
>>>> On Wed, Sep 9, 2015 at 6:46 PM, Mehdi Amini via cfe-commits <
>>>> cfe-commits at lists.llvm.org> wrote:
>>>>
>>>>> Author: mehdi_amini
>>>>> Date: Wed Sep  9 20:46:39 2015
>>>>> New Revision: 247233
>>>>>
>>>>> URL: http://llvm.org/viewvc/llvm-project?rev=247233&view=rev
>>>>> Log:
>>>>> EmitRecord* API change: accepts ArrayRef instead of a SmallVector (NFC)
>>>>>
>>>>> This reapply a variant commit r247179 after post-commit review from
>>>>> D.Blaikie.
>>>>> Hopefully I got it right this time: lifetime of initializer list ends
>>>>> as with any expression, which make invalid the pattern:
>>>>>
>>>>> ArrayRef<int> Arr = { 1, 2, 3, 4};
>>>>>
>>>>> Just like StringRef, ArrayRef shouldn't be used to initialize local
>>>>> variable but only as function argument.
>>>>>
>>>>
>>>> Looks pretty reasonable - I'll mention it again, just in case: removing
>>>> the named variables and just putting the init lists directly in the call
>>>> might be as (or more) readable - might be worth giving it a go & running it
>>>> through clang-format to see what you think.
>>>>
>>>>
>>>> Here is an example, let me know what do you think:
>>>>
>>>>   {
>>>>     RecordData::value_type Record[] = {METADATA, VERSION_MAJOR,
>>>> VERSION_MINOR,
>>>>                                        CLANG_VERSION_MAJOR,
>>>> CLANG_VERSION_MINOR,
>>>>                                        !isysroot.empty(),
>>>> IncludeTimestamps,
>>>>                                        ASTHasCompilerErrors};
>>>>     Stream.EmitRecordWithBlob(MetadataAbbrevCode, Record,
>>>>                               getClangFullRepositoryVersion());
>>>>   }
>>>>   Stream.EmitRecordWithBlob(
>>>>       MetadataAbbrevCode,
>>>>       (uint64_t[]){METADATA, VERSION_MAJOR, VERSION_MINOR,
>>>> CLANG_VERSION_MAJOR,
>>>>
>>>
>>> Why the cast (uint64_t[])? I'm vaguely surprised that even compiles... ?
>>>
>>> This is a GNU extension (C99 compound literals in C++). It won't compile
> on MSVC.
>

Ah, good to know - thanks for the catch.


> I would imagine it'd be passed as an init list, then turned into an
>>> ArrayRef from there... but I guess not?
>>>
>>>
>>>
>>> Might be more clear with the callee:
>>>
>>>   template <typename Container>
>>>   void EmitRecordWithBlob(unsigned Abbrev, const Container &Vals,
>>>                           StringRef Blob) {
>>>     EmitRecordWithAbbrevImpl(Abbrev, makeArrayRef(Vals), Blob, None);
>>>   }
>>>
>>> The template can’t be deduced without the cast.
>>>
>>
>> Yeah, curious though. Another hole in perfect forwarding I suppose (not
>> that this ^ is perfect forwarding, but even with perfect forwarding it
>> doesn't cope well)
>>
>> Yeah, the cast is rather unfortunate. Hrm.
>>
>> Ah well - probably just as good to leave it as-is for now. If someone has
>> a flash of inspiration later & figures out a way to make it better, so be
>> it.
>>
>
> The way to handle this is to add another EmitRecord overload that takes a
> std::initializer_list<uint64_t>.
>

Except the integer types aren't known - which has been one of the wrinkles
with this whole code (or at least the template is trying to allow arrays of
different integer types - but perhaps that's not important for the init
list/literal case?)


>
>
>>>>>> Mehdi
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>>                    CLANG_VERSION_MINOR, !isysroot.empty(),
>>>> IncludeTimestamps,
>>>>                    ASTHasCompilerErrors},
>>>>       getClangFullRepositoryVersion());
>>>>
>>>> Thanks,
>>>>
>>>>>>>> Mehdi
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> - Dave
>>>>
>>>>
>>>>>
>>>>> From: Mehdi Amini <mehdi.amini at apple.com>
>>>>>
>>>>> Modified:
>>>>>     cfe/trunk/include/clang/Serialization/ASTWriter.h
>>>>>     cfe/trunk/lib/Frontend/SerializedDiagnosticPrinter.cpp
>>>>>     cfe/trunk/lib/Serialization/ASTWriter.cpp
>>>>>     cfe/trunk/lib/Serialization/GlobalModuleIndex.cpp
>>>>>
>>>>> Modified: cfe/trunk/include/clang/Serialization/ASTWriter.h
>>>>> URL:
>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Serialization/ASTWriter.h?rev=247233&r1=247232&r2=247233&view=diff
>>>>>
>>>>> ==============================================================================
>>>>> --- cfe/trunk/include/clang/Serialization/ASTWriter.h (original)
>>>>> +++ cfe/trunk/include/clang/Serialization/ASTWriter.h Wed Sep  9
>>>>> 20:46:39 2015
>>>>> @@ -84,6 +84,7 @@ class ASTWriter : public ASTDeserializat
>>>>>  public:
>>>>>    typedef SmallVector<uint64_t, 64> RecordData;
>>>>>    typedef SmallVectorImpl<uint64_t> RecordDataImpl;
>>>>> +  typedef ArrayRef<uint64_t> RecordDataRef;
>>>>>
>>>>>    friend class ASTDeclWriter;
>>>>>    friend class ASTStmtWriter;
>>>>> @@ -756,7 +757,7 @@ public:
>>>>>    void AddPath(StringRef Path, RecordDataImpl &Record);
>>>>>
>>>>>    /// \brief Emit the current record with the given path as a blob.
>>>>> -  void EmitRecordWithPath(unsigned Abbrev, RecordDataImpl &Record,
>>>>> +  void EmitRecordWithPath(unsigned Abbrev, RecordDataRef Record,
>>>>>                            StringRef Path);
>>>>>
>>>>>    /// \brief Add a version tuple to the given record
>>>>>
>>>>> Modified: cfe/trunk/lib/Frontend/SerializedDiagnosticPrinter.cpp
>>>>> URL:
>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/SerializedDiagnosticPrinter.cpp?rev=247233&r1=247232&r2=247233&view=diff
>>>>>
>>>>> ==============================================================================
>>>>> --- cfe/trunk/lib/Frontend/SerializedDiagnosticPrinter.cpp (original)
>>>>> +++ cfe/trunk/lib/Frontend/SerializedDiagnosticPrinter.cpp Wed Sep  9
>>>>> 20:46:39 2015
>>>>> @@ -51,6 +51,7 @@ public:
>>>>>
>>>>>  typedef SmallVector<uint64_t, 64> RecordData;
>>>>>  typedef SmallVectorImpl<uint64_t> RecordDataImpl;
>>>>> +typedef ArrayRef<uint64_t> RecordDataRef;
>>>>>
>>>>>  class SDiagsWriter;
>>>>>
>>>>> @@ -393,13 +394,9 @@ unsigned SDiagsWriter::getEmitFile(const
>>>>>
>>>>>    // Lazily generate the record for the file.
>>>>>    entry = State->Files.size();
>>>>> -  RecordData Record;
>>>>> -  Record.push_back(RECORD_FILENAME);
>>>>> -  Record.push_back(entry);
>>>>> -  Record.push_back(0); // For legacy.
>>>>> -  Record.push_back(0); // For legacy.
>>>>>    StringRef Name(FileName);
>>>>> -  Record.push_back(Name.size());
>>>>> +  RecordData::value_type Record[] = {RECORD_FILENAME, entry, 0 /* For
>>>>> legacy */,
>>>>> +                                     0 /* For legacy */, Name.size()};
>>>>>
>>>>>  State->Stream.EmitRecordWithBlob(State->Abbrevs.get(RECORD_FILENAME),
>>>>> Record,
>>>>>                                     Name);
>>>>>
>>>>> @@ -531,14 +528,11 @@ void SDiagsWriter::EmitBlockInfoBlock()
>>>>>
>>>>>  void SDiagsWriter::EmitMetaBlock() {
>>>>>    llvm::BitstreamWriter &Stream = State->Stream;
>>>>> -  RecordData &Record = State->Record;
>>>>>    AbbreviationMap &Abbrevs = State->Abbrevs;
>>>>>
>>>>>    Stream.EnterSubblock(BLOCK_META, 3);
>>>>> -  Record.clear();
>>>>> -  Record.push_back(RECORD_VERSION);
>>>>> -  Record.push_back(VersionNumber);
>>>>> -  Stream.EmitRecordWithAbbrev(Abbrevs.get(RECORD_VERSION), Record);
>>>>> +  RecordData::value_type Record[] = {RECORD_VERSION, VersionNumber};
>>>>> +  Stream.EmitRecordWithAbbrev(Abbrevs.get(RECORD_VERSION), Record);
>>>>>    Stream.ExitBlock();
>>>>>  }
>>>>>
>>>>> @@ -548,11 +542,8 @@ unsigned SDiagsWriter::getEmitCategory(u
>>>>>
>>>>>    // We use a local version of 'Record' so that we can be generating
>>>>>    // another record when we lazily generate one for the category
>>>>> entry.
>>>>> -  RecordData Record;
>>>>> -  Record.push_back(RECORD_CATEGORY);
>>>>> -  Record.push_back(category);
>>>>>    StringRef catName = DiagnosticIDs::getCategoryNameFromID(category);
>>>>> -  Record.push_back(catName.size());
>>>>> +  RecordData::value_type Record[] = {RECORD_CATEGORY, category,
>>>>> catName.size()};
>>>>>
>>>>>  State->Stream.EmitRecordWithBlob(State->Abbrevs.get(RECORD_CATEGORY),
>>>>> Record,
>>>>>                                     catName);
>>>>>
>>>>> @@ -581,10 +572,8 @@ unsigned SDiagsWriter::getEmitDiagnostic
>>>>>      entry.second = FlagName;
>>>>>
>>>>>      // Lazily emit the string in a separate record.
>>>>> -    RecordData Record;
>>>>> -    Record.push_back(RECORD_DIAG_FLAG);
>>>>> -    Record.push_back(entry.first);
>>>>> -    Record.push_back(FlagName.size());
>>>>> +    RecordData::value_type Record[] = {RECORD_DIAG_FLAG, entry.first,
>>>>> +                                       FlagName.size()};
>>>>>
>>>>>  State->Stream.EmitRecordWithBlob(State->Abbrevs.get(RECORD_DIAG_FLAG),
>>>>>                                       Record, FlagName);
>>>>>    }
>>>>> @@ -844,17 +833,9 @@ std::error_code SDiagsMerger::visitEndOf
>>>>>  std::error_code
>>>>>  SDiagsMerger::visitSourceRangeRecord(const serialized_diags::Location
>>>>> &Start,
>>>>>                                       const
>>>>> serialized_diags::Location &End) {
>>>>> -  RecordData Record;
>>>>> -  Record.push_back(RECORD_SOURCE_RANGE);
>>>>> -  Record.push_back(FileLookup[Start.FileID]);
>>>>> -  Record.push_back(Start.Line);
>>>>> -  Record.push_back(Start.Col);
>>>>> -  Record.push_back(Start.Offset);
>>>>> -  Record.push_back(FileLookup[End.FileID]);
>>>>> -  Record.push_back(End.Line);
>>>>> -  Record.push_back(End.Col);
>>>>> -  Record.push_back(End.Offset);
>>>>> -
>>>>> +  RecordData::value_type Record[] = {
>>>>> +      RECORD_SOURCE_RANGE, FileLookup[Start.FileID], Start.Line,
>>>>> Start.Col,
>>>>> +      Start.Offset, FileLookup[End.FileID], End.Line, End.Col,
>>>>> End.Offset};
>>>>>    Writer.State->Stream.EmitRecordWithAbbrev(
>>>>>        Writer.State->Abbrevs.get(RECORD_SOURCE_RANGE), Record);
>>>>>    return std::error_code();
>>>>> @@ -863,19 +844,13 @@ SDiagsMerger::visitSourceRangeRecord(con
>>>>>  std::error_code SDiagsMerger::visitDiagnosticRecord(
>>>>>      unsigned Severity, const serialized_diags::Location &Location,
>>>>>      unsigned Category, unsigned Flag, StringRef Message) {
>>>>> -  RecordData MergedRecord;
>>>>> -  MergedRecord.push_back(RECORD_DIAG);
>>>>> -  MergedRecord.push_back(Severity);
>>>>> -  MergedRecord.push_back(FileLookup[Location.FileID]);
>>>>> -  MergedRecord.push_back(Location.Line);
>>>>> -  MergedRecord.push_back(Location.Col);
>>>>> -  MergedRecord.push_back(Location.Offset);
>>>>> -  MergedRecord.push_back(CategoryLookup[Category]);
>>>>> -  MergedRecord.push_back(Flag ? DiagFlagLookup[Flag] : 0);
>>>>> -  MergedRecord.push_back(Message.size());
>>>>> +  RecordData::value_type Record[] = {
>>>>> +      RECORD_DIAG, Severity, FileLookup[Location.FileID],
>>>>> Location.Line,
>>>>> +      Location.Col, Location.Offset, CategoryLookup[Category],
>>>>> +      Flag ? DiagFlagLookup[Flag] : 0, Message.size()};
>>>>>
>>>>>    Writer.State->Stream.EmitRecordWithBlob(
>>>>> -      Writer.State->Abbrevs.get(RECORD_DIAG), MergedRecord, Message);
>>>>> +      Writer.State->Abbrevs.get(RECORD_DIAG), Record, Message);
>>>>>    return std::error_code();
>>>>>  }
>>>>>
>>>>> @@ -883,17 +858,10 @@ std::error_code
>>>>>  SDiagsMerger::visitFixitRecord(const serialized_diags::Location
>>>>> &Start,
>>>>>                                 const serialized_diags::Location &End,
>>>>>                                 StringRef Text) {
>>>>> -  RecordData Record;
>>>>> -  Record.push_back(RECORD_FIXIT);
>>>>> -  Record.push_back(FileLookup[Start.FileID]);
>>>>> -  Record.push_back(Start.Line);
>>>>> -  Record.push_back(Start.Col);
>>>>> -  Record.push_back(Start.Offset);
>>>>> -  Record.push_back(FileLookup[End.FileID]);
>>>>> -  Record.push_back(End.Line);
>>>>> -  Record.push_back(End.Col);
>>>>> -  Record.push_back(End.Offset);
>>>>> -  Record.push_back(Text.size());
>>>>> +  RecordData::value_type Record[] = {RECORD_FIXIT,
>>>>> FileLookup[Start.FileID],
>>>>> +                                     Start.Line, Start.Col,
>>>>> Start.Offset,
>>>>> +                                     FileLookup[End.FileID],
>>>>> End.Line, End.Col,
>>>>> +                                     End.Offset, Text.size()};
>>>>>
>>>>>    Writer.State->Stream.EmitRecordWithBlob(
>>>>>        Writer.State->Abbrevs.get(RECORD_FIXIT), Record, Text);
>>>>>
>>>>> Modified: cfe/trunk/lib/Serialization/ASTWriter.cpp
>>>>> URL:
>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Serialization/ASTWriter.cpp?rev=247233&r1=247232&r2=247233&view=diff
>>>>>
>>>>> ==============================================================================
>>>>> --- cfe/trunk/lib/Serialization/ASTWriter.cpp (original)
>>>>> +++ cfe/trunk/lib/Serialization/ASTWriter.cpp Wed Sep  9 20:46:39 2015
>>>>> @@ -1185,27 +1185,23 @@ void ASTWriter::WriteControlBlock(Prepro
>>>>>    MetadataAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); //
>>>>> Errors
>>>>>    MetadataAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // SVN
>>>>> branch/tag
>>>>>    unsigned MetadataAbbrevCode = Stream.EmitAbbrev(MetadataAbbrev);
>>>>> -  Record.push_back(METADATA);
>>>>> -  Record.push_back(VERSION_MAJOR);
>>>>> -  Record.push_back(VERSION_MINOR);
>>>>> -  Record.push_back(CLANG_VERSION_MAJOR);
>>>>> -  Record.push_back(CLANG_VERSION_MINOR);
>>>>>    assert((!WritingModule || isysroot.empty()) &&
>>>>>           "writing module as a relocatable PCH?");
>>>>> -  Record.push_back(!isysroot.empty());
>>>>> -  Record.push_back(IncludeTimestamps);
>>>>> -  Record.push_back(ASTHasCompilerErrors);
>>>>> -  Stream.EmitRecordWithBlob(MetadataAbbrevCode, Record,
>>>>> -                            getClangFullRepositoryVersion());
>>>>> -
>>>>> +  {
>>>>> +    RecordData::value_type Record[] = {METADATA, VERSION_MAJOR,
>>>>> VERSION_MINOR,
>>>>> +                                       CLANG_VERSION_MAJOR,
>>>>> CLANG_VERSION_MINOR,
>>>>> +                                       !isysroot.empty(),
>>>>> IncludeTimestamps,
>>>>> +                                       ASTHasCompilerErrors};
>>>>> +    Stream.EmitRecordWithBlob(MetadataAbbrevCode, Record,
>>>>> +                              getClangFullRepositoryVersion());
>>>>> +  }
>>>>>    if (WritingModule) {
>>>>>      // For implicit modules we output a signature that we can use to
>>>>> ensure
>>>>>      // duplicate module builds don't collide in the cache as their
>>>>> output order
>>>>>      // is non-deterministic.
>>>>>      // FIXME: Remove this when output is deterministic.
>>>>>      if (Context.getLangOpts().ImplicitModules) {
>>>>> -      Record.clear();
>>>>> -      Record.push_back(getSignature());
>>>>> +      RecordData::value_type Record[] = {getSignature()};
>>>>>        Stream.EmitRecord(SIGNATURE, Record);
>>>>>      }
>>>>>
>>>>> @@ -1214,8 +1210,7 @@ void ASTWriter::WriteControlBlock(Prepro
>>>>>      Abbrev->Add(BitCodeAbbrevOp(MODULE_NAME));
>>>>>      Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
>>>>>      unsigned AbbrevCode = Stream.EmitAbbrev(Abbrev);
>>>>> -    RecordData Record;
>>>>> -    Record.push_back(MODULE_NAME);
>>>>> +    RecordData::value_type Record[] = {MODULE_NAME};
>>>>>      Stream.EmitRecordWithBlob(AbbrevCode, Record,
>>>>> WritingModule->Name);
>>>>>    }
>>>>>
>>>>> @@ -1236,8 +1231,7 @@ void ASTWriter::WriteControlBlock(Prepro
>>>>>        Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); //
>>>>> Directory
>>>>>        unsigned AbbrevCode = Stream.EmitAbbrev(Abbrev);
>>>>>
>>>>> -      RecordData Record;
>>>>> -      Record.push_back(MODULE_DIRECTORY);
>>>>> +      RecordData::value_type Record[] = {MODULE_DIRECTORY};
>>>>>        Stream.EmitRecordWithBlob(AbbrevCode, Record, BaseDir);
>>>>>      }
>>>>>
>>>>> @@ -1466,8 +1460,7 @@ void ASTWriter::WriteControlBlock(Prepro
>>>>>      SM.getFileManager().makeAbsolutePath(OutputPath);
>>>>>      StringRef origDir = llvm::sys::path::parent_path(OutputPath);
>>>>>
>>>>> -    RecordData Record;
>>>>> -    Record.push_back(ORIGINAL_PCH_DIR);
>>>>> +    RecordData::value_type Record[] = {ORIGINAL_PCH_DIR};
>>>>>      Stream.EmitRecordWithBlob(AbbrevCode, Record, origDir);
>>>>>    }
>>>>>
>>>>> @@ -1491,8 +1484,7 @@ void ASTWriter::WriteInputFiles(SourceMa
>>>>>                                  bool Modules) {
>>>>>    using namespace llvm;
>>>>>    Stream.EnterSubblock(INPUT_FILES_BLOCK_ID, 4);
>>>>> -  RecordData Record;
>>>>> -
>>>>> +
>>>>>    // Create input-file abbreviation.
>>>>>    BitCodeAbbrev *IFAbbrev = new BitCodeAbbrev();
>>>>>    IFAbbrev->Add(BitCodeAbbrevOp(INPUT_FILE));
>>>>> @@ -1547,16 +1539,11 @@ void ASTWriter::WriteInputFiles(SourceMa
>>>>>      if (!Entry.IsSystemFile)
>>>>>        ++UserFilesNum;
>>>>>
>>>>> -    Record.clear();
>>>>> -    Record.push_back(INPUT_FILE);
>>>>> -    Record.push_back(InputFileOffsets.size());
>>>>> -
>>>>>      // Emit size/modification time for this file.
>>>>> -    Record.push_back(Entry.File->getSize());
>>>>> -    Record.push_back(getTimestampForOutput(Entry.File));
>>>>> -
>>>>> -    // Whether this file was overridden.
>>>>> -    Record.push_back(Entry.BufferOverridden);
>>>>> +    // And whether this file was overridden.
>>>>> +    RecordData::value_type Record[] = {
>>>>> +        INPUT_FILE, InputFileOffsets.size(),
>>>>> (uint64_t)Entry.File->getSize(),
>>>>> +        (uint64_t)getTimestampForOutput(Entry.File),
>>>>> Entry.BufferOverridden};
>>>>>
>>>>>      EmitRecordWithPath(IFAbbrevCode, Record, Entry.File->getName());
>>>>>    }
>>>>> @@ -1573,10 +1560,8 @@ void ASTWriter::WriteInputFiles(SourceMa
>>>>>    unsigned OffsetsAbbrevCode = Stream.EmitAbbrev(OffsetsAbbrev);
>>>>>
>>>>>    // Write input file offsets.
>>>>> -  Record.clear();
>>>>> -  Record.push_back(INPUT_FILE_OFFSETS);
>>>>> -  Record.push_back(InputFileOffsets.size());
>>>>> -  Record.push_back(UserFilesNum);
>>>>> +  RecordData::value_type Record[] = {INPUT_FILE_OFFSETS,
>>>>> +                                     InputFileOffsets.size(),
>>>>> UserFilesNum};
>>>>>    Stream.EmitRecordWithBlob(OffsetsAbbrevCode, Record,
>>>>> bytes(InputFileOffsets));
>>>>>  }
>>>>>
>>>>> @@ -1818,11 +1803,8 @@ void ASTWriter::WriteHeaderSearch(const
>>>>>    unsigned TableAbbrev = Stream.EmitAbbrev(Abbrev);
>>>>>
>>>>>    // Write the header search table
>>>>> -  RecordData Record;
>>>>> -  Record.push_back(HEADER_SEARCH_TABLE);
>>>>> -  Record.push_back(BucketOffset);
>>>>> -  Record.push_back(NumHeaderSearchEntries);
>>>>> -  Record.push_back(TableData.size());
>>>>> +  RecordData::value_type Record[] = {HEADER_SEARCH_TABLE,
>>>>> BucketOffset,
>>>>> +                                     NumHeaderSearchEntries,
>>>>> TableData.size()};
>>>>>
>>>>>  TableData.append(GeneratorTrait.strings_begin(),GeneratorTrait.strings_end());
>>>>>    Stream.EmitRecordWithBlob(TableAbbrev, Record, TableData);
>>>>>
>>>>> @@ -1911,8 +1893,7 @@ void ASTWriter::WriteSourceManagerBlock(
>>>>>          Stream.EmitRecordWithAbbrev(SLocFileAbbrv, Record);
>>>>>
>>>>>          if (Content->BufferOverridden) {
>>>>> -          Record.clear();
>>>>> -          Record.push_back(SM_SLOC_BUFFER_BLOB);
>>>>> +          RecordData::value_type Record[] = {SM_SLOC_BUFFER_BLOB};
>>>>>            const llvm::MemoryBuffer *Buffer
>>>>>              = Content->getBuffer(PP.getDiagnostics(),
>>>>> PP.getSourceManager());
>>>>>            Stream.EmitRecordWithBlob(SLocBufferBlobAbbrv, Record,
>>>>> @@ -1931,8 +1912,7 @@ void ASTWriter::WriteSourceManagerBlock(
>>>>>          const char *Name = Buffer->getBufferIdentifier();
>>>>>          Stream.EmitRecordWithBlob(SLocBufferAbbrv, Record,
>>>>>                                    StringRef(Name, strlen(Name) + 1));
>>>>> -        Record.clear();
>>>>> -        Record.push_back(SM_SLOC_BUFFER_BLOB);
>>>>> +        RecordData::value_type Record[] = {SM_SLOC_BUFFER_BLOB};
>>>>>          Stream.EmitRecordWithBlob(SLocBufferBlobAbbrv, Record,
>>>>>                                    StringRef(Buffer->getBufferStart(),
>>>>>
>>>>>  Buffer->getBufferSize() + 1));
>>>>> @@ -1972,13 +1952,13 @@ void ASTWriter::WriteSourceManagerBlock(
>>>>>    Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 16)); // total
>>>>> size
>>>>>    Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // offsets
>>>>>    unsigned SLocOffsetsAbbrev = Stream.EmitAbbrev(Abbrev);
>>>>> -
>>>>> -  Record.clear();
>>>>> -  Record.push_back(SOURCE_LOCATION_OFFSETS);
>>>>> -  Record.push_back(SLocEntryOffsets.size());
>>>>> -  Record.push_back(SourceMgr.getNextLocalOffset() - 1); // skip dummy
>>>>> -  Stream.EmitRecordWithBlob(SLocOffsetsAbbrev, Record,
>>>>> bytes(SLocEntryOffsets));
>>>>> -
>>>>> +  {
>>>>> +    RecordData::value_type Record[] = {
>>>>> +        SOURCE_LOCATION_OFFSETS, SLocEntryOffsets.size(),
>>>>> +        SourceMgr.getNextLocalOffset() - 1 /* skip dummy */};
>>>>> +    Stream.EmitRecordWithBlob(SLocOffsetsAbbrev, Record,
>>>>> +                              bytes(SLocEntryOffsets));
>>>>> +  }
>>>>>    // Write the source location entry preloads array, telling the AST
>>>>>    // reader which source locations entries it should load eagerly.
>>>>>    Stream.EmitRecord(SOURCE_LOCATION_PRELOADS, PreloadSLocs);
>>>>> @@ -2064,9 +2044,8 @@ void ASTWriter::WritePreprocessor(const
>>>>>
>>>>>    // If the preprocessor __COUNTER__ value has been bumped, remember
>>>>> it.
>>>>>    if (PP.getCounterValue() != 0) {
>>>>> -    Record.push_back(PP.getCounterValue());
>>>>> +    RecordData::value_type Record[] = {PP.getCounterValue()};
>>>>>      Stream.EmitRecord(PP_COUNTER_VALUE, Record);
>>>>> -    Record.clear();
>>>>>    }
>>>>>
>>>>>    // Enter the preprocessor block.
>>>>> @@ -2232,12 +2211,11 @@ void ASTWriter::WritePreprocessor(const
>>>>>    Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
>>>>>
>>>>>    unsigned MacroOffsetAbbrev = Stream.EmitAbbrev(Abbrev);
>>>>> -  Record.clear();
>>>>> -  Record.push_back(MACRO_OFFSET);
>>>>> -  Record.push_back(MacroOffsets.size());
>>>>> -  Record.push_back(FirstMacroID - NUM_PREDEF_MACRO_IDS);
>>>>> -  Stream.EmitRecordWithBlob(MacroOffsetAbbrev, Record,
>>>>> -                            bytes(MacroOffsets));
>>>>> +  {
>>>>> +    RecordData::value_type Record[] = {MACRO_OFFSET,
>>>>> MacroOffsets.size(),
>>>>> +                                       FirstMacroID -
>>>>> NUM_PREDEF_MACRO_IDS};
>>>>> +    Stream.EmitRecordWithBlob(MacroOffsetAbbrev, Record,
>>>>> bytes(MacroOffsets));
>>>>> +  }
>>>>>  }
>>>>>
>>>>>  void ASTWriter::WritePreprocessorDetail(PreprocessingRecord &PPRec) {
>>>>> @@ -2331,9 +2309,9 @@ void ASTWriter::WritePreprocessorDetail(
>>>>>      Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
>>>>>      unsigned PPEOffsetAbbrev = Stream.EmitAbbrev(Abbrev);
>>>>>
>>>>> -    Record.clear();
>>>>> -    Record.push_back(PPD_ENTITIES_OFFSETS);
>>>>> -    Record.push_back(FirstPreprocessorEntityID -
>>>>> NUM_PREDEF_PP_ENTITY_IDS);
>>>>> +    RecordData::value_type Record[] = {PPD_ENTITIES_OFFSETS,
>>>>> +                                       FirstPreprocessorEntityID -
>>>>> +                                           NUM_PREDEF_PP_ENTITY_IDS};
>>>>>      Stream.EmitRecordWithBlob(PPEOffsetAbbrev, Record,
>>>>>                                bytes(PreprocessedEntityOffsets));
>>>>>    }
>>>>> @@ -2460,9 +2438,9 @@ void ASTWriter::WriteSubmodules(Module *
>>>>>    unsigned ConflictAbbrev = Stream.EmitAbbrev(Abbrev);
>>>>>
>>>>>    // Write the submodule metadata block.
>>>>> -  RecordData Record;
>>>>> -  Record.push_back(getNumberOfModules(WritingModule));
>>>>> -  Record.push_back(FirstSubmoduleID - NUM_PREDEF_SUBMODULE_IDS);
>>>>> +  RecordData::value_type Record[] =
>>>>> {getNumberOfModules(WritingModule),
>>>>> +                                     FirstSubmoduleID -
>>>>> +                                         NUM_PREDEF_SUBMODULE_IDS};
>>>>>    Stream.EmitRecord(SUBMODULE_METADATA, Record);
>>>>>
>>>>>    // Write all of the submodules.
>>>>> @@ -2472,45 +2450,37 @@ void ASTWriter::WriteSubmodules(Module *
>>>>>      Module *Mod = Q.front();
>>>>>      Q.pop();
>>>>>      unsigned ID = getSubmoduleID(Mod);
>>>>> -
>>>>> -    // Emit the definition of the block.
>>>>> -    Record.clear();
>>>>> -    Record.push_back(SUBMODULE_DEFINITION);
>>>>> -    Record.push_back(ID);
>>>>> +
>>>>> +    uint64_t ParentID = 0;
>>>>>      if (Mod->Parent) {
>>>>>        assert(SubmoduleIDs[Mod->Parent] && "Submodule parent not
>>>>> written?");
>>>>> -      Record.push_back(SubmoduleIDs[Mod->Parent]);
>>>>> -    } else {
>>>>> -      Record.push_back(0);
>>>>> +      ParentID = SubmoduleIDs[Mod->Parent];
>>>>>      }
>>>>> -    Record.push_back(Mod->IsFramework);
>>>>> -    Record.push_back(Mod->IsExplicit);
>>>>> -    Record.push_back(Mod->IsSystem);
>>>>> -    Record.push_back(Mod->IsExternC);
>>>>> -    Record.push_back(Mod->InferSubmodules);
>>>>> -    Record.push_back(Mod->InferExplicitSubmodules);
>>>>> -    Record.push_back(Mod->InferExportWildcard);
>>>>> -    Record.push_back(Mod->ConfigMacrosExhaustive);
>>>>> -    Stream.EmitRecordWithBlob(DefinitionAbbrev, Record, Mod->Name);
>>>>> -
>>>>> +
>>>>> +    // Emit the definition of the block.
>>>>> +    {
>>>>> +      RecordData::value_type Record[] = {
>>>>> +          SUBMODULE_DEFINITION, ID, ParentID, Mod->IsFramework,
>>>>> Mod->IsExplicit,
>>>>> +          Mod->IsSystem, Mod->IsExternC, Mod->InferSubmodules,
>>>>> +          Mod->InferExplicitSubmodules, Mod->InferExportWildcard,
>>>>> +          Mod->ConfigMacrosExhaustive};
>>>>> +      Stream.EmitRecordWithBlob(DefinitionAbbrev, Record, Mod->Name);
>>>>> +    }
>>>>> +
>>>>>      // Emit the requirements.
>>>>>      for (const auto &R : Mod->Requirements) {
>>>>> -      Record.clear();
>>>>> -      Record.push_back(SUBMODULE_REQUIRES);
>>>>> -      Record.push_back(R.second);
>>>>> +      RecordData::value_type Record[] = {SUBMODULE_REQUIRES,
>>>>> R.second};
>>>>>        Stream.EmitRecordWithBlob(RequiresAbbrev, Record, R.first);
>>>>>      }
>>>>>
>>>>>      // Emit the umbrella header, if there is one.
>>>>>      if (auto UmbrellaHeader = Mod->getUmbrellaHeader()) {
>>>>> -      Record.clear();
>>>>> -      Record.push_back(SUBMODULE_UMBRELLA_HEADER);
>>>>> +      RecordData::value_type Record[] = {SUBMODULE_UMBRELLA_HEADER};
>>>>>        Stream.EmitRecordWithBlob(UmbrellaAbbrev, Record,
>>>>>                                  UmbrellaHeader.NameAsWritten);
>>>>>      } else if (auto UmbrellaDir = Mod->getUmbrellaDir()) {
>>>>> -      Record.clear();
>>>>> -      Record.push_back(SUBMODULE_UMBRELLA_DIR);
>>>>> -      Stream.EmitRecordWithBlob(UmbrellaDirAbbrev, Record,
>>>>> +      RecordData::value_type Record[] = {SUBMODULE_UMBRELLA_DIR};
>>>>> +      Stream.EmitRecordWithBlob(UmbrellaDirAbbrev, Record,
>>>>>                                  UmbrellaDir.NameAsWritten);
>>>>>      }
>>>>>
>>>>> @@ -2528,8 +2498,7 @@ void ASTWriter::WriteSubmodules(Module *
>>>>>        {SUBMODULE_EXCLUDED_HEADER, ExcludedHeaderAbbrev,
>>>>> Module::HK_Excluded}
>>>>>      };
>>>>>      for (auto &HL : HeaderLists) {
>>>>> -      Record.clear();
>>>>> -      Record.push_back(HL.RecordKind);
>>>>> +      RecordData::value_type Record[] = {HL.RecordKind};
>>>>>        for (auto &H : Mod->Headers[HL.HeaderKind])
>>>>>          Stream.EmitRecordWithBlob(HL.Abbrev, Record, H.NameAsWritten);
>>>>>      }
>>>>> @@ -2537,15 +2506,14 @@ void ASTWriter::WriteSubmodules(Module *
>>>>>      // Emit the top headers.
>>>>>      {
>>>>>        auto TopHeaders = Mod->getTopHeaders(PP->getFileManager());
>>>>> -      Record.clear();
>>>>> -      Record.push_back(SUBMODULE_TOPHEADER);
>>>>> +      RecordData::value_type Record[] = {SUBMODULE_TOPHEADER};
>>>>>        for (auto *H : TopHeaders)
>>>>>          Stream.EmitRecordWithBlob(TopHeaderAbbrev, Record,
>>>>> H->getName());
>>>>>      }
>>>>>
>>>>>      // Emit the imports.
>>>>>      if (!Mod->Imports.empty()) {
>>>>> -      Record.clear();
>>>>> +      RecordData Record;
>>>>>        for (auto *I : Mod->Imports)
>>>>>          Record.push_back(getSubmoduleID(I));
>>>>>        Stream.EmitRecord(SUBMODULE_IMPORTS, Record);
>>>>> @@ -2553,7 +2521,7 @@ void ASTWriter::WriteSubmodules(Module *
>>>>>
>>>>>      // Emit the exports.
>>>>>      if (!Mod->Exports.empty()) {
>>>>> -      Record.clear();
>>>>> +      RecordData Record;
>>>>>        for (const auto &E : Mod->Exports) {
>>>>>          // FIXME: This may fail; we don't require that all exported
>>>>> modules
>>>>>          // are local or imported.
>>>>> @@ -2569,26 +2537,23 @@ void ASTWriter::WriteSubmodules(Module *
>>>>>
>>>>>      // Emit the link libraries.
>>>>>      for (const auto &LL : Mod->LinkLibraries) {
>>>>> -      Record.clear();
>>>>> -      Record.push_back(SUBMODULE_LINK_LIBRARY);
>>>>> -      Record.push_back(LL.IsFramework);
>>>>> +      RecordData::value_type Record[] = {SUBMODULE_LINK_LIBRARY,
>>>>> +                                         LL.IsFramework};
>>>>>        Stream.EmitRecordWithBlob(LinkLibraryAbbrev, Record,
>>>>> LL.Library);
>>>>>      }
>>>>>
>>>>>      // Emit the conflicts.
>>>>>      for (const auto &C : Mod->Conflicts) {
>>>>> -      Record.clear();
>>>>> -      Record.push_back(SUBMODULE_CONFLICT);
>>>>>        // FIXME: This may fail; we don't require that all conflicting
>>>>> modules
>>>>>        // are local or imported.
>>>>> -      Record.push_back(getSubmoduleID(C.Other));
>>>>> +      RecordData::value_type Record[] = {SUBMODULE_CONFLICT,
>>>>> +                                         getSubmoduleID(C.Other)};
>>>>>        Stream.EmitRecordWithBlob(ConflictAbbrev, Record, C.Message);
>>>>>      }
>>>>>
>>>>>      // Emit the configuration macros.
>>>>>      for (const auto &CM : Mod->ConfigMacros) {
>>>>> -      Record.clear();
>>>>> -      Record.push_back(SUBMODULE_CONFIG_MACRO);
>>>>> +      RecordData::value_type Record[] = {SUBMODULE_CONFIG_MACRO};
>>>>>        Stream.EmitRecordWithBlob(ConfigMacroAbbrev, Record, CM);
>>>>>      }
>>>>>
>>>>> @@ -2670,8 +2635,6 @@ void ASTWriter::WriteCXXCtorInitializers
>>>>>    if (CXXCtorInitializersOffsets.empty())
>>>>>      return;
>>>>>
>>>>> -  RecordData Record;
>>>>> -
>>>>>    // Create a blob abbreviation for the C++ ctor initializer offsets.
>>>>>    using namespace llvm;
>>>>>
>>>>> @@ -2682,9 +2645,8 @@ void ASTWriter::WriteCXXCtorInitializers
>>>>>    unsigned CtorInitializersOffsetAbbrev = Stream.EmitAbbrev(Abbrev);
>>>>>
>>>>>    // Write the base specifier offsets table.
>>>>> -  Record.clear();
>>>>> -  Record.push_back(CXX_CTOR_INITIALIZERS_OFFSETS);
>>>>> -  Record.push_back(CXXCtorInitializersOffsets.size());
>>>>> +  RecordData::value_type Record[] = {CXX_CTOR_INITIALIZERS_OFFSETS,
>>>>> +
>>>>>  CXXCtorInitializersOffsets.size()};
>>>>>    Stream.EmitRecordWithBlob(CtorInitializersOffsetAbbrev, Record,
>>>>>                              bytes(CXXCtorInitializersOffsets));
>>>>>  }
>>>>> @@ -2693,8 +2655,6 @@ void ASTWriter::WriteCXXBaseSpecifiersOf
>>>>>    if (CXXBaseSpecifiersOffsets.empty())
>>>>>      return;
>>>>>
>>>>> -  RecordData Record;
>>>>> -
>>>>>    // Create a blob abbreviation for the C++ base specifiers offsets.
>>>>>    using namespace llvm;
>>>>>
>>>>> @@ -2705,9 +2665,8 @@ void ASTWriter::WriteCXXBaseSpecifiersOf
>>>>>    unsigned BaseSpecifierOffsetAbbrev = Stream.EmitAbbrev(Abbrev);
>>>>>
>>>>>    // Write the base specifier offsets table.
>>>>> -  Record.clear();
>>>>> -  Record.push_back(CXX_BASE_SPECIFIER_OFFSETS);
>>>>> -  Record.push_back(CXXBaseSpecifiersOffsets.size());
>>>>> +  RecordData::value_type Record[] = {CXX_BASE_SPECIFIER_OFFSETS,
>>>>> +                                     CXXBaseSpecifiersOffsets.size()};
>>>>>    Stream.EmitRecordWithBlob(BaseSpecifierOffsetAbbrev, Record,
>>>>>                              bytes(CXXBaseSpecifiersOffsets));
>>>>>  }
>>>>> @@ -2778,8 +2737,6 @@ uint64_t ASTWriter::WriteDeclContextLexi
>>>>>      return 0;
>>>>>
>>>>>    uint64_t Offset = Stream.GetCurrentBitNo();
>>>>> -  RecordData Record;
>>>>> -  Record.push_back(DECL_CONTEXT_LEXICAL);
>>>>>    SmallVector<uint32_t, 128> KindDeclPairs;
>>>>>    for (const auto *D : DC->decls()) {
>>>>>      KindDeclPairs.push_back(D->getKind());
>>>>> @@ -2787,6 +2744,7 @@ uint64_t ASTWriter::WriteDeclContextLexi
>>>>>    }
>>>>>
>>>>>    ++NumLexicalDeclContexts;
>>>>> +  RecordData::value_type Record[] = {DECL_CONTEXT_LEXICAL};
>>>>>    Stream.EmitRecordWithBlob(DeclContextLexicalAbbrev, Record,
>>>>>                              bytes(KindDeclPairs));
>>>>>    return Offset;
>>>>> @@ -2794,7 +2752,6 @@ uint64_t ASTWriter::WriteDeclContextLexi
>>>>>
>>>>>  void ASTWriter::WriteTypeDeclOffsets() {
>>>>>    using namespace llvm;
>>>>> -  RecordData Record;
>>>>>
>>>>>    // Write the type offsets array
>>>>>    BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
>>>>> @@ -2803,11 +2760,11 @@ void ASTWriter::WriteTypeDeclOffsets() {
>>>>>    Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // base
>>>>> type index
>>>>>    Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // types block
>>>>>    unsigned TypeOffsetAbbrev = Stream.EmitAbbrev(Abbrev);
>>>>> -  Record.clear();
>>>>> -  Record.push_back(TYPE_OFFSET);
>>>>> -  Record.push_back(TypeOffsets.size());
>>>>> -  Record.push_back(FirstTypeID - NUM_PREDEF_TYPE_IDS);
>>>>> -  Stream.EmitRecordWithBlob(TypeOffsetAbbrev, Record,
>>>>> bytes(TypeOffsets));
>>>>> +  {
>>>>> +    RecordData::value_type Record[] = {TYPE_OFFSET,
>>>>> TypeOffsets.size(),
>>>>> +                                       FirstTypeID -
>>>>> NUM_PREDEF_TYPE_IDS};
>>>>> +    Stream.EmitRecordWithBlob(TypeOffsetAbbrev, Record,
>>>>> bytes(TypeOffsets));
>>>>> +  }
>>>>>
>>>>>    // Write the declaration offsets array
>>>>>    Abbrev = new BitCodeAbbrev();
>>>>> @@ -2816,16 +2773,15 @@ void ASTWriter::WriteTypeDeclOffsets() {
>>>>>    Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // base
>>>>> decl ID
>>>>>    Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); //
>>>>> declarations block
>>>>>    unsigned DeclOffsetAbbrev = Stream.EmitAbbrev(Abbrev);
>>>>> -  Record.clear();
>>>>> -  Record.push_back(DECL_OFFSET);
>>>>> -  Record.push_back(DeclOffsets.size());
>>>>> -  Record.push_back(FirstDeclID - NUM_PREDEF_DECL_IDS);
>>>>> -  Stream.EmitRecordWithBlob(DeclOffsetAbbrev, Record,
>>>>> bytes(DeclOffsets));
>>>>> +  {
>>>>> +    RecordData::value_type Record[] = {DECL_OFFSET,
>>>>> DeclOffsets.size(),
>>>>> +                                       FirstDeclID -
>>>>> NUM_PREDEF_DECL_IDS};
>>>>> +    Stream.EmitRecordWithBlob(DeclOffsetAbbrev, Record,
>>>>> bytes(DeclOffsets));
>>>>> +  }
>>>>>  }
>>>>>
>>>>>  void ASTWriter::WriteFileDeclIDsMap() {
>>>>>    using namespace llvm;
>>>>> -  RecordData Record;
>>>>>
>>>>>    SmallVector<std::pair<FileID, DeclIDInFileInfo *>, 64>
>>>>> SortedFileDeclIDs(
>>>>>        FileDeclIDs.begin(), FileDeclIDs.end());
>>>>> @@ -2846,8 +2802,8 @@ void ASTWriter::WriteFileDeclIDsMap() {
>>>>>    Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
>>>>>    Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
>>>>>    unsigned AbbrevCode = Stream.EmitAbbrev(Abbrev);
>>>>> -  Record.push_back(FILE_SORTED_DECLS);
>>>>> -  Record.push_back(FileGroupedDeclIDs.size());
>>>>> +  RecordData::value_type Record[] = {FILE_SORTED_DECLS,
>>>>> +                                     FileGroupedDeclIDs.size()};
>>>>>    Stream.EmitRecordWithBlob(AbbrevCode, Record,
>>>>> bytes(FileGroupedDeclIDs));
>>>>>  }
>>>>>
>>>>> @@ -3057,11 +3013,11 @@ void ASTWriter::WriteSelectors(Sema &Sem
>>>>>      unsigned MethodPoolAbbrev = Stream.EmitAbbrev(Abbrev);
>>>>>
>>>>>      // Write the method pool
>>>>> -    RecordData Record;
>>>>> -    Record.push_back(METHOD_POOL);
>>>>> -    Record.push_back(BucketOffset);
>>>>> -    Record.push_back(NumTableEntries);
>>>>> -    Stream.EmitRecordWithBlob(MethodPoolAbbrev, Record, MethodPool);
>>>>> +    {
>>>>> +      RecordData::value_type Record[] = {METHOD_POOL, BucketOffset,
>>>>> +                                         NumTableEntries};
>>>>> +      Stream.EmitRecordWithBlob(MethodPoolAbbrev, Record, MethodPool);
>>>>> +    }
>>>>>
>>>>>      // Create a blob abbreviation for the selector table offsets.
>>>>>      Abbrev = new BitCodeAbbrev();
>>>>> @@ -3072,12 +3028,13 @@ void ASTWriter::WriteSelectors(Sema &Sem
>>>>>      unsigned SelectorOffsetAbbrev = Stream.EmitAbbrev(Abbrev);
>>>>>
>>>>>      // Write the selector offsets table.
>>>>> -    Record.clear();
>>>>> -    Record.push_back(SELECTOR_OFFSETS);
>>>>> -    Record.push_back(SelectorOffsets.size());
>>>>> -    Record.push_back(FirstSelectorID - NUM_PREDEF_SELECTOR_IDS);
>>>>> -    Stream.EmitRecordWithBlob(SelectorOffsetAbbrev, Record,
>>>>> -                              bytes(SelectorOffsets));
>>>>> +    {
>>>>> +      RecordData::value_type Record[] = {
>>>>> +          SELECTOR_OFFSETS, SelectorOffsets.size(),
>>>>> +          FirstSelectorID - NUM_PREDEF_SELECTOR_IDS};
>>>>> +      Stream.EmitRecordWithBlob(SelectorOffsetAbbrev, Record,
>>>>> +                                bytes(SelectorOffsets));
>>>>> +    }
>>>>>    }
>>>>>  }
>>>>>
>>>>> @@ -3347,9 +3304,7 @@ void ASTWriter::WriteIdentifierTable(Pre
>>>>>      unsigned IDTableAbbrev = Stream.EmitAbbrev(Abbrev);
>>>>>
>>>>>      // Write the identifier table
>>>>> -    RecordData Record;
>>>>> -    Record.push_back(IDENTIFIER_TABLE);
>>>>> -    Record.push_back(BucketOffset);
>>>>> +    RecordData::value_type Record[] = {IDENTIFIER_TABLE,
>>>>> BucketOffset};
>>>>>      Stream.EmitRecordWithBlob(IDTableAbbrev, Record, IdentifierTable);
>>>>>    }
>>>>>
>>>>> @@ -3365,11 +3320,10 @@ void ASTWriter::WriteIdentifierTable(Pre
>>>>>    for (unsigned I = 0, N = IdentifierOffsets.size(); I != N; ++I)
>>>>>      assert(IdentifierOffsets[I] && "Missing identifier offset?");
>>>>>  #endif
>>>>> -
>>>>> -  RecordData Record;
>>>>> -  Record.push_back(IDENTIFIER_OFFSET);
>>>>> -  Record.push_back(IdentifierOffsets.size());
>>>>> -  Record.push_back(FirstIdentID - NUM_PREDEF_IDENT_IDS);
>>>>> +
>>>>> +  RecordData::value_type Record[] = {IDENTIFIER_OFFSET,
>>>>> +                                     IdentifierOffsets.size(),
>>>>> +                                     FirstIdentID -
>>>>> NUM_PREDEF_IDENT_IDS};
>>>>>    Stream.EmitRecordWithBlob(IdentifierOffsetAbbrev, Record,
>>>>>                              bytes(IdentifierOffsets));
>>>>>
>>>>> @@ -3785,8 +3739,7 @@ uint64_t ASTWriter::WriteDeclContextVisi
>>>>>    GenerateNameLookupTable(DC, LookupTable);
>>>>>
>>>>>    // Write the lookup table
>>>>> -  RecordData Record;
>>>>> -  Record.push_back(DECL_CONTEXT_VISIBLE);
>>>>> +  RecordData::value_type Record[] = {DECL_CONTEXT_VISIBLE};
>>>>>    Stream.EmitRecordWithBlob(DeclContextVisibleLookupAbbrev, Record,
>>>>>                              LookupTable);
>>>>>    ++NumVisibleDeclContexts;
>>>>> @@ -3817,16 +3770,13 @@ void ASTWriter::WriteDeclContextVisibleU
>>>>>      DC = cast<DeclContext>(Chain->getKeyDeclaration(cast<Decl>(DC)));
>>>>>
>>>>>    // Write the lookup table
>>>>> -  RecordData Record;
>>>>> -  Record.push_back(UPDATE_VISIBLE);
>>>>> -  Record.push_back(getDeclID(cast<Decl>(DC)));
>>>>> +  RecordData::value_type Record[] = {UPDATE_VISIBLE,
>>>>> getDeclID(cast<Decl>(DC))};
>>>>>    Stream.EmitRecordWithBlob(UpdateVisibleAbbrev, Record, LookupTable);
>>>>>  }
>>>>>
>>>>>  /// \brief Write an FP_PRAGMA_OPTIONS block for the given FPOptions.
>>>>>  void ASTWriter::WriteFPPragmaOptions(const FPOptions &Opts) {
>>>>> -  RecordData Record;
>>>>> -  Record.push_back(Opts.fp_contract);
>>>>> +  RecordData::value_type Record[] = {Opts.fp_contract};
>>>>>    Stream.EmitRecord(FP_PRAGMA_OPTIONS, Record);
>>>>>  }
>>>>>
>>>>> @@ -3883,14 +3833,12 @@ void ASTWriter::WriteObjCCategories() {
>>>>>    Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // # of
>>>>> entries
>>>>>    Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
>>>>>    unsigned AbbrevID = Stream.EmitAbbrev(Abbrev);
>>>>> -
>>>>> -  RecordData Record;
>>>>> -  Record.push_back(OBJC_CATEGORIES_MAP);
>>>>> -  Record.push_back(CategoriesMap.size());
>>>>> -  Stream.EmitRecordWithBlob(AbbrevID, Record,
>>>>> -
>>>>> reinterpret_cast<char*>(CategoriesMap.data()),
>>>>> +
>>>>> +  RecordData::value_type Record[] = {OBJC_CATEGORIES_MAP,
>>>>> CategoriesMap.size()};
>>>>> +  Stream.EmitRecordWithBlob(AbbrevID, Record,
>>>>> +                            reinterpret_cast<char
>>>>> *>(CategoriesMap.data()),
>>>>>                              CategoriesMap.size() *
>>>>> sizeof(ObjCCategoriesInfo));
>>>>> -
>>>>> +
>>>>>    // Emit the category lists.
>>>>>    Stream.EmitRecord(OBJC_CATEGORIES, Categories);
>>>>>  }
>>>>> @@ -3987,7 +3935,7 @@ void ASTWriter::AddPath(StringRef Path,
>>>>>    AddString(FilePath, Record);
>>>>>  }
>>>>>
>>>>> -void ASTWriter::EmitRecordWithPath(unsigned Abbrev, RecordDataImpl
>>>>> &Record,
>>>>> +void ASTWriter::EmitRecordWithPath(unsigned Abbrev, RecordDataRef
>>>>> Record,
>>>>>                                     StringRef Path) {
>>>>>    SmallString<128> FilePath(Path);
>>>>>    PreparePathForOutput(FilePath);
>>>>> @@ -4250,14 +4198,14 @@ void ASTWriter::WriteASTCore(Sema &SemaR
>>>>>    WriteControlBlock(PP, Context, isysroot, OutputFile);
>>>>>
>>>>>    // Write the remaining AST contents.
>>>>> -  RecordData Record;
>>>>>    Stream.EnterSubblock(AST_BLOCK_ID, 5);
>>>>>
>>>>>    // This is so that older clang versions, before the introduction
>>>>>    // of the control block, can read and reject the newer PCH format.
>>>>> -  Record.clear();
>>>>> -  Record.push_back(VERSION_MAJOR);
>>>>> -  Stream.EmitRecord(METADATA_OLD_FORMAT, Record);
>>>>> +  {
>>>>> +    RecordData Record = {VERSION_MAJOR};
>>>>> +    Stream.EmitRecord(METADATA_OLD_FORMAT, Record);
>>>>> +  }
>>>>>
>>>>>    // Create a lexical update block containing all of the declarations
>>>>> in the
>>>>>    // translation unit that do not come from other AST files.
>>>>> @@ -4274,11 +4222,12 @@ void ASTWriter::WriteASTCore(Sema &SemaR
>>>>>    Abv->Add(llvm::BitCodeAbbrevOp(TU_UPDATE_LEXICAL));
>>>>>    Abv->Add(llvm::BitCodeAbbrevOp(llvm::BitCodeAbbrevOp::Blob));
>>>>>    unsigned TuUpdateLexicalAbbrev = Stream.EmitAbbrev(Abv);
>>>>> -  Record.clear();
>>>>> -  Record.push_back(TU_UPDATE_LEXICAL);
>>>>> -  Stream.EmitRecordWithBlob(TuUpdateLexicalAbbrev, Record,
>>>>> -                            bytes(NewGlobalKindDeclPairs));
>>>>> -
>>>>> +  {
>>>>> +    RecordData::value_type Record[] = {TU_UPDATE_LEXICAL};
>>>>> +    Stream.EmitRecordWithBlob(TuUpdateLexicalAbbrev, Record,
>>>>> +                              bytes(NewGlobalKindDeclPairs));
>>>>> +  }
>>>>> +
>>>>>    // And a visible updates block for the translation unit.
>>>>>    Abv = new llvm::BitCodeAbbrev();
>>>>>    Abv->Add(llvm::BitCodeAbbrevOp(UPDATE_VISIBLE));
>>>>> @@ -4408,8 +4357,7 @@ void ASTWriter::WriteASTCore(Sema &SemaR
>>>>>          writeBaseIDOrNone(M->BaseTypeIndex, M->LocalNumTypes);
>>>>>        }
>>>>>      }
>>>>> -    Record.clear();
>>>>> -    Record.push_back(MODULE_OFFSET_MAP);
>>>>> +    RecordData::value_type Record[] = {MODULE_OFFSET_MAP};
>>>>>      Stream.EmitRecordWithBlob(ModuleOffsetMapAbbrev, Record,
>>>>>                                Buffer.data(), Buffer.size());
>>>>>    }
>>>>> @@ -4573,11 +4521,8 @@ void ASTWriter::WriteASTCore(Sema &SemaR
>>>>>      WriteOptimizePragmaOptions(SemaRef);
>>>>>
>>>>>    // Some simple statistics
>>>>> -  Record.clear();
>>>>> -  Record.push_back(NumStatements);
>>>>> -  Record.push_back(NumMacros);
>>>>> -  Record.push_back(NumLexicalDeclContexts);
>>>>> -  Record.push_back(NumVisibleDeclContexts);
>>>>> +  RecordData::value_type Record[] = {
>>>>> +      NumStatements, NumMacros, NumLexicalDeclContexts,
>>>>> NumVisibleDeclContexts};
>>>>>    Stream.EmitRecord(STATISTICS, Record);
>>>>>    Stream.ExitBlock();
>>>>>  }
>>>>>
>>>>> Modified: cfe/trunk/lib/Serialization/GlobalModuleIndex.cpp
>>>>> URL:
>>>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Serialization/GlobalModuleIndex.cpp?rev=247233&r1=247232&r2=247233&view=diff
>>>>>
>>>>> ==============================================================================
>>>>> --- cfe/trunk/lib/Serialization/GlobalModuleIndex.cpp (original)
>>>>> +++ cfe/trunk/lib/Serialization/GlobalModuleIndex.cpp Wed Sep  9
>>>>> 20:46:39 2015
>>>>> @@ -757,9 +757,7 @@ void GlobalModuleIndexBuilder::writeInde
>>>>>      unsigned IDTableAbbrev = Stream.EmitAbbrev(Abbrev);
>>>>>
>>>>>      // Write the identifier table
>>>>> -    Record.clear();
>>>>> -    Record.push_back(IDENTIFIER_INDEX);
>>>>> -    Record.push_back(BucketOffset);
>>>>> +    uint64_t Record[] = {IDENTIFIER_INDEX, BucketOffset};
>>>>>      Stream.EmitRecordWithBlob(IDTableAbbrev, Record, IdentifierTable);
>>>>>    }
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> cfe-commits mailing list
>>>>> cfe-commits at lists.llvm.org
>>>>> http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
>>>>
>>>>
>>>
>>
>> _______________________________________________
>> cfe-commits mailing list
>> cfe-commits at lists.llvm.org
>> http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
>>
>>
>
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