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

Richard Smith via cfe-commits cfe-commits at lists.llvm.org
Thu Sep 10 11:39:36 PDT 2015


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.

> 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>.


>>>> 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
>>>
>>>
>>
>
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> cfe-commits at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
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