1 files changed, 54 insertions, 0 deletions
diff --git a/tests/src/JIT/Regression/JitBlue/DevDiv_461649/DevDiv_461649.cs b/tests/src/JIT/Regression/JitBlue/DevDiv_461649/DevDiv_461649.cs
new file mode 100644
index 0000000000..0265f43065
--- /dev/null
+++ b/tests/src/JIT/Regression/JitBlue/DevDiv_461649/DevDiv_461649.cs
@@ -0,0 +1,54 @@
+// 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.
+
+using System;
+using System.IO;
+using System.Xml;
+using System.Xml.XPath;
+using System.Xml.Xsl;
+
+
+namespace XSLTest
+{
+    class Program
+    {
+        // In this test a dynamic method with tail-prefixed call is created.
+        // One of the locals is not explicitly initialized but a flag to init locals is set.
+        // (That never happens in normal C# methods due to C# definite assignment rules.)
+        // The jit performs an optimization transforming the tail call into a loop.
+        // The bug was that the local was only zero-initialized for the first iteration of the loop.
+
+        static int Main(string[] args)
+        {
+            string inputXml = "Input.xml";
+            string inputXsl = "Transform.xsl";
+
+            return DotNetXslCompiledTransform(inputXml, inputXsl);
+        }
+
+        private static int DotNetXslCompiledTransform(string inputXml, string inputXsl)
+        {
+            XslCompiledTransform transform = new XslCompiledTransform();
+            transform.Load(inputXsl);
+
+            StringWriter stringWriter = new StringWriter();
+            XmlWriter writer = new XmlTextWriter(stringWriter);
+
+            transform.Transform(inputXml, null, writer);
+
+            string transformResult = stringWriter.ToString();
+            if (transformResult == "<!--20.0 20.0 20.0 20.0 20.0--> 40 40 40 40 40")
+            {
+                Console.WriteLine("SUCCESS");
+                return 100;
+            }
+            else
+            {
+                Console.WriteLine("FAILURE");
+                return 0;
+            }
+        }
+    }
+}
+