r176354 - [PCH] Remove building a SmallPtrSet that is not actually used for anything.

[Argyrios Kyrtzidis]

Author: akirtzidis
Date: Fri Mar  1 11:01:31 2013
New Revision: 176354

URL: http://llvm.org/viewvc/llvm-project?rev=176354&view=rev
Log:
[PCH] Remove building a SmallPtrSet that is not actually used for anything.

Modified:
    cfe/trunk/lib/Serialization/ASTWriter.cpp

Modified: cfe/trunk/lib/Serialization/ASTWriter.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Serialization/ASTWriter.cpp?rev=176354&r1=176353&r2=176354&view=diff
==============================================================================
--- cfe/trunk/lib/Serialization/ASTWriter.cpp (original)
+++ cfe/trunk/lib/Serialization/ASTWriter.cpp Fri Mar  1 11:01:31 2013
@@ -1758,12 +1758,10 @@ void ASTWriter::WritePreprocessor(const
   // Construct the list of macro definitions that need to be serialized.
   SmallVector<std::pair<const IdentifierInfo *, MacroDirective *>, 2>
     MacrosToEmit;
-  llvm::SmallPtrSet<const IdentifierInfo*, 4> MacroDefinitionsSeen;
   for (Preprocessor::macro_iterator I = PP.macro_begin(Chain == 0),
                                     E = PP.macro_end(Chain == 0);
        I != E; ++I) {
     if (!IsModule || I->second->isPublic()) {
-      MacroDefinitionsSeen.insert(I->first);
       MacrosToEmit.push_back(std::make_pair(I->first, I->second));
     }
   }