Create fewer copies of StringMaps. No functionality change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316301 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/ProfileData/SampleProf.h b/include/llvm/ProfileData/SampleProf.h
index 09e2723e591ff7d041ccaf03b379009c6945a395..3aba12344d024f9bc5e7232a4e1ef34908aea813 100644 (file)
--- a/include/llvm/ProfileData/SampleProf.h
+++ b/include/llvm/ProfileData/SampleProf.h
@@ -372,7 +372,7 @@ public:
           if (!Callee || !Callee->getSubprogram())
             S.insert(Function::getGUID(TS.getKey()));
         }
-    for (auto CS : CallsiteSamples)
+    for (const auto &CS : CallsiteSamples)
       for (const auto &NameFS : CS.second)
         NameFS.second.findImportedFunctions(S, M, Threshold);
   }