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 13:34:33 PDT 2015


On Thu, Sep 10, 2015 at 11:46 AM, David Blaikie <dblaikie at gmail.com> wrote:

>
>
> 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?)
>

While the bitstream writer allows any unsigned type, the bitstream reader
hardcodes uint64_t, so types larger than uint64_t won't round-trip and
don't need to be supported. And we don't need to support smaller types
either, because (1) that will cause template argument deduction problems
and (2) we are supporting a literal braced-init-list, not some pre-built
container of unsigned integers, so it's not really too much of an
imposition to perform the conversion to uint64_t in the caller. So
hardcoding uint64_t in the writer for the braced-init-list case doesn't
seem like a problem to me.


>
>>>>>>>> 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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