[lld] r248098 - COFF: Actually parallelize InputFile::parse().

[Rui Ueyama via llvm-commits]

That's as described in r248078. Because r248078 missed this change, that
didn't actually make things faster.

On Sat, Sep 19, 2015 at 3:09 PM, Rafael Espíndola <
rafael.espindola at gmail.com> wrote:

> What is the speed difference?
> On Sep 19, 2015 5:34 PM, "Rui Ueyama via llvm-commits" <
> llvm-commits at lists.llvm.org> wrote:
>
>> Author: ruiu
>> Date: Sat Sep 19 16:33:26 2015
>> New Revision: 248098
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=248098&view=rev
>> Log:
>> COFF: Actually parallelize InputFile::parse().
>>
>> This is a follow-up patch to r248078.
>>
>> Modified:
>>     lld/trunk/COFF/SymbolTable.cpp
>>
>> Modified: lld/trunk/COFF/SymbolTable.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/lld/trunk/COFF/SymbolTable.cpp?rev=248098&r1=248097&r2=248098&view=diff
>>
>> ==============================================================================
>> --- lld/trunk/COFF/SymbolTable.cpp (original)
>> +++ lld/trunk/COFF/SymbolTable.cpp Sat Sep 19 16:33:26 2015
>> @@ -56,8 +56,8 @@ void SymbolTable::readArchives() {
>>    if (ArchiveQueue.empty())
>>      return;
>>
>> -  std::for_each(ArchiveQueue.begin(), ArchiveQueue.end(),
>> -                [](ArchiveFile *File) { File->parse(); });
>> +  parallel_for_each(ArchiveQueue.begin(), ArchiveQueue.end(),
>> +                    [](ArchiveFile *File) { File->parse(); });
>>
>>    // Add lazy symbols to the symbol table. Lazy symbols that conflict
>>    // with existing undefined symbols are accumulated in LazySyms.
>> @@ -83,8 +83,8 @@ void SymbolTable::readObjects() {
>>    // Add defined and undefined symbols to the symbol table.
>>    std::vector<StringRef> Directives;
>>    for (size_t I = 0; I < ObjectQueue.size();) {
>> -    std::for_each(ObjectQueue.begin() + I, ObjectQueue.end(),
>> -                  [](InputFile *File) { File->parse(); });
>> +    parallel_for_each(ObjectQueue.begin() + I, ObjectQueue.end(),
>> +                      [](InputFile *File) { File->parse(); });
>>      for (size_t E = ObjectQueue.size(); I != E; ++I) {
>>        InputFile *File = ObjectQueue[I];
>>        if (Config->Verbose)
>>
>>
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>>
>
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