move tier out of an anonymous namespace, it doesn't make sense

to for it to be an an anon namespace and be in a header.

Eliminate some extraenous uses of tie.

llvm-svn: 135669

1 files changed, 4 insertions, 5 deletions

diff --git a/llvm/lib/Support/StringExtras.cpp b/llvm/lib/Support/StringExtras.cpp
index eb2fa084218..49c5ac4252c 100644
--- a/llvm/lib/Support/StringExtras.cpp
+++ b/llvm/lib/Support/StringExtras.cpp
@@ -51,11 +51,10 @@ std::pair<StringRef, StringRef> llvm::getToken(StringRef Source,
 void llvm::SplitString(StringRef Source,
                        SmallVectorImpl<StringRef> &OutFragments,
                        StringRef Delimiters) {
-  StringRef S2, S;
-  tie(S2, S) = getToken(Source, Delimiters);
-  while (!S2.empty()) {
-    OutFragments.push_back(S2);
-    tie(S2, S) = getToken(S, Delimiters);
+  std::pair<StringRef, StringRef> S = getToken(Source, Delimiters);
+  while (!S.first.empty()) {
+    OutFragments.push_back(S.first);
+    S = getToken(S.second, Delimiters);
   }
 }