1 files changed, 66 insertions, 0 deletions
diff --git a/tests/src/JIT/Performance/CodeQuality/BenchmarksGame/mandelbrot/mandelbrot-serial.cs b/tests/src/JIT/Performance/CodeQuality/BenchmarksGame/mandelbrot/mandelbrot-serial.cs
new file mode 100644
index 0000000000..66748b3751
--- /dev/null
+++ b/tests/src/JIT/Performance/CodeQuality/BenchmarksGame/mandelbrot/mandelbrot-serial.cs
@@ -0,0 +1,66 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+// Adapted from mandelbrot C# .NET Core #2 program
+// http://benchmarksgame.alioth.debian.org/u64q/program.php?test=mandelbrot&lang=csharpcore&id=2
+// Best-scoring single-threaded C# .NET Core version as of 2017-09-01
+
+/* The Computer Language Benchmarks Game
+   http://benchmarksgame.alioth.debian.org/
+ *
+ * Adapted by Antti Lankila from the earlier Isaac Gouy's implementation
+ */
+
+using System;
+using System.IO;
+
+class Mandelbrot {
+
+   public static void Main(String[] args) {
+
+      int width = 100;
+      if (args.Length > 0)
+	 width = Int32.Parse(args[0]);
+
+      int height = width;
+      int maxiter = 50;
+      double limit = 4.0;
+
+      Console.WriteLine("P4");
+      Console.WriteLine("{0} {1}", width,height);
+      Stream s = Console.OpenStandardOutput(1024);
+
+      for (int y = 0; y < height; y++) {
+	 int bits = 0;
+	 int xcounter = 0;
+	 double Ci = 2.0*y/height - 1.0;
+
+         for (int x = 0; x < width; x++){
+	    double Zr = 0.0;
+	    double Zi = 0.0;
+	    double Cr = 2.0*x/width - 1.5;
+            int i = maxiter;
+
+            bits = bits << 1;
+            do {
+               double Tr = Zr*Zr - Zi*Zi + Cr;
+               Zi = 2.0*Zr*Zi + Ci;
+               Zr = Tr;
+               if (Zr*Zr + Zi*Zi > limit) {
+		  bits |= 1;
+		  break;
+	       }
+            } while (--i > 0);
+
+            if (++xcounter == 8) {
+	       s.WriteByte((byte) (bits ^ 0xff));
+	       bits = 0;
+	       xcounter = 0;
+            }
+         }
+         if (xcounter != 0)
+	    s.WriteByte((byte) ((bits << (8 - xcounter)) ^ 0xff));
+      }
+   }
+}