Add MakeRefVsBoxingProgram

Benchmarks/Benchmarks.csproj

@@ -42,6 +42,7 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="IncrementProgram.cs" />
+    <Compile Include="MakeRefVsBoxingProgram.cs" />
     <Compile Include="MultidimensionalArrayProgram.cs" />
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />

Benchmarks/MakeRefVsBoxingProgram.cs

@@ -0,0 +1,42 @@
+using BenchmarkDotNet;
+
+namespace Benchmarks
+{
+    public class MakeRefVsBoxingProgram
+    {
+        private const int IterationCount = 100000000;
+        private int[] array;
+
+        public void Run()
+        {
+            array = new int[5];
+
+            var competition = new BenchmarkCompetition();
+            competition.AddTask("MakeRef", MakeRef);
+            competition.AddTask("Boxing", Boxing);
+            competition.Run();
+        }
+
+        public void MakeRef()
+        {
+            for (int i = 0; i < IterationCount; i++)
+                Set1(array, 0, i);
+        }
+
+        public void Boxing()
+        {
+            for (int i = 0; i < IterationCount; i++)
+                Set2(array, 0, i);
+        }
+
+        public void Set1<T>(T[] a, int i, int v)
+        {
+            __refvalue(__makeref(a[i]), int) = v;
+        }
+
+        public void Set2<T>(T[] a, int i, int v)
+        {
+            a[i] = (T)(object)v;
+        }
+    }
+}

Benchmarks/Program.cs

@@ -11,7 +11,8 @@ namespace Benchmarks
                 new ProgramRunner("MultidimensionalArray", () => new MultidimensionalArrayProgram().Run()),
                 new ProgramRunner("StaticField", () => new StaticFieldProgram().Run()),
                 new ProgramRunner("ShiftVsMultiply", () => new ShiftVsMultiplyProgram().Run()), 
-                new ProgramRunner("ReverseSort", () => new ReverseSortProgram().Run()), 
+                new ProgramRunner("ReverseSort", () => new ReverseSortProgram().Run()),
+                new ProgramRunner("MakeRefVsBoxing", () => new MakeRefVsBoxingProgram().Run()), 
             };
 
         static void Main(string[] args)