Avoid extra callSite copy


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4232 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/DataStructure/BottomUpClosure.cpp b/lib/Analysis/DataStructure/BottomUpClosure.cpp
index e65a06c..b6748d8 100644
--- a/lib/Analysis/DataStructure/BottomUpClosure.cpp
+++ b/lib/Analysis/DataStructure/BottomUpClosure.cpp
@@ -113,7 +113,7 @@
 
           // Record that this is a call site of FI.
           assert(&Call.getCaller() == &F && "Invalid caller in DSCallSite?");
-          CallSites[&FI].push_back(DSCallSite(Call));
+          CallSites[&FI].push_back(Call);
 
           if (&FI == &F) {
             // Self recursion... simply link up the formal arguments with the