[llvm-profdata] Use SmallSet rather that std::set for keeping track of profdata merge...

Missed bit of feedback from D14720.

Use SmallSet<std::error_code> rather than std::set<...> in order to be more efficient.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253474 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/tools/llvm-profdata/llvm-profdata.cpp b/tools/llvm-profdata/llvm-profdata.cpp
index 9ce0485fb1375de6a007ecd052c06f01e4d359c0..9669c7dfa45f332ddd85891750eba2923cc5b4e3 100644 (file)
--- a/tools/llvm-profdata/llvm-profdata.cpp
+++ b/tools/llvm-profdata/llvm-profdata.cpp
@@ -11,6 +11,7 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/IR/LLVMContext.h"
 #include "llvm/ProfileData/InstrProfReader.h"
@@ -27,8 +28,6 @@
 #include "llvm/Support/Signals.h"
 #include "llvm/Support/raw_ostream.h"
 
-#include <set>
-
 using namespace llvm;
 
 static void exitWithError(const Twine &Message,
@@ -103,7 +102,7 @@ static void mergeInstrProfile(const cl::list<std::string> &Inputs,
     exitWithErrorCode(EC, OutputFilename);
 
   InstrProfWriter Writer;
-  std::set<std::error_code> WriterErrorCodes;
+  SmallSet<std::error_code, 4> WriterErrorCodes;
   for (const auto &Filename : Inputs) {
     auto ReaderOrErr = InstrProfReader::create(Filename);
     if (std::error_code ec = ReaderOrErr.getError())