[llvm] r238414 - [MC] Replace custom string join function with the one from StringExtras.

[Benjamin Kramer]

Author: d0k
Date: Thu May 28 06:45:32 2015
New Revision: 238414

URL: http://llvm.org/viewvc/llvm-project?rev=238414&view=rev
Log:
[MC] Replace custom string join function with the one from StringExtras.

NFC.

Modified:
    llvm/trunk/lib/MC/SubtargetFeature.cpp

Modified: llvm/trunk/lib/MC/SubtargetFeature.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/MC/SubtargetFeature.cpp?rev=238414&r1=238413&r2=238414&view=diff
==============================================================================
--- llvm/trunk/lib/MC/SubtargetFeature.cpp (original)
+++ llvm/trunk/lib/MC/SubtargetFeature.cpp Thu May 28 06:45:32 2015
@@ -12,6 +12,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/MC/SubtargetFeature.h"
+#include "llvm/ADT/StringExtras.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/Format.h"
 #include "llvm/Support/raw_ostream.h"
@@ -59,27 +60,6 @@ static void Split(std::vector<std::strin
   V.assign(Tmp.begin(), Tmp.end());
 }
 
-/// Join a vector of strings to a string with a comma separating each element.
-///
-static std::string Join(const std::vector<std::string> &V) {
-  // Start with empty string.
-  std::string Result;
-  // If the vector is not empty
-  if (!V.empty()) {
-    // Start with the first feature
-    Result = V[0];
-    // For each successive feature
-    for (size_t i = 1; i < V.size(); i++) {
-      // Add a comma
-      Result += ",";
-      // Add the feature
-      Result += V[i];
-    }
-  }
-  // Return the features string
-  return Result;
-}
-
 /// Adding features.
 void SubtargetFeatures::AddFeature(StringRef String, bool Enable) {
   // Don't add empty features.
@@ -144,7 +124,7 @@ SubtargetFeatures::SubtargetFeatures(Str
 
 
 std::string SubtargetFeatures::getString() const {
-  return Join(Features);
+  return join(Features.begin(), Features.end(), ",");
 }
 
 /// SetImpliedBits - For each feature that is (transitively) implied by this