Index: llvm/lib/Transforms/IPO/FunctionSpecialization.cpp
===================================================================
--- llvm/lib/Transforms/IPO/FunctionSpecialization.cpp
+++ llvm/lib/Transforms/IPO/FunctionSpecialization.cpp
@@ -120,6 +120,8 @@
           LLVM_DEBUG(dbgs() << "FnSpecialization: Replaced constant argument: "
                             << Arg.getName() << "\n");
     }
+
+    NumFuncSpecialized += FunctionsSpecialized;
     return Changed;
   }
 
@@ -141,6 +143,8 @@
   }
 
 private:
+  int FunctionsSpecialized = 0;
+
   /// This function decides whether to specialize function \p F based on the
   /// known constant values its arguments can take on. Specialization is
   /// performed on the first interesting argument. Specializations based on
@@ -217,7 +221,7 @@
 
         // Mark all the specialized functions
         Specializations.push_back(Clone);
-        NumFuncSpecialized++;
+        FunctionsSpecialized++;
       }
 
       // TODO: if we want to support specialize specialized functions, and if
@@ -247,7 +251,7 @@
 
     // Otherwise, set the specialization cost to be the cost of all the
     // instructions in the function and penalty for specializing more functions.
-    unsigned Penalty = NumFuncSpecialized + 1;
+    unsigned Penalty = FunctionsSpecialized + 1;
     return Metrics.NumInsts * InlineConstants::InstrCost * Penalty;
   }
 
@@ -631,6 +635,5 @@
 
   // Clean up the IR by removing ssa_copy intrinsics.
   cleanup(M);
-
   return Changed;
 }