* Add #includes removed from headers
* ValueSet interface converted from add/remove to insert/erase
* Minor cleanups


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1689 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/RegAlloc/InterferenceGraph.cpp b/lib/CodeGen/RegAlloc/InterferenceGraph.cpp
index 0de7275..a366c11 100644
--- a/lib/CodeGen/RegAlloc/InterferenceGraph.cpp
+++ b/lib/CodeGen/RegAlloc/InterferenceGraph.cpp
@@ -1,6 +1,7 @@
 #include "llvm/CodeGen/InterferenceGraph.h"
 #include "Support/STLExtras.h"
 #include <iostream>
+#include <algorithm>
 using std::cerr;
 
 //-----------------------------------------------------------------------------