1 files changed, 60 insertions, 0 deletions
diff --git a/tests/src/jit/Directed/pinvoke/pinvoke-bug.cs b/tests/src/jit/Directed/pinvoke/pinvoke-bug.cs
new file mode 100644
index 0000000000..2d4b5f6aea
--- /dev/null
+++ b/tests/src/jit/Directed/pinvoke/pinvoke-bug.cs
@@ -0,0 +1,60 @@
+// 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.Runtime.InteropServices;
+
+// Test includes an intentional unreachable return 
+#pragma warning disable 162
+
+namespace PInvokeTest
+{
+    internal class Test
+    {
+        [DllImport("msvcrt", EntryPoint = "sin")]
+        private static extern double sin(double x);
+
+        private static double g;
+        private static bool b;
+
+        public static int Main(string[] args)
+        {
+            bool result = false;
+            g = 0.0;
+            double val = 1.0;
+            b = false;
+            try
+            {
+                Func(val);
+            }
+            catch(Exception)
+            {
+                result = (Math.Abs(g - sin(val)) < 0.0001);
+            }
+
+            return (result ? 100 : -1);
+        }
+
+        // An inline pinvoke in a method with float math followed by a
+        // throw may causes trouble for liveness models for the inline
+        // frame var.
+        static double Func(double x)
+        {
+            g = sin(x);
+
+            // A bit of control flow to throw off rareness detection
+            // Also we need float in here 
+            if (b)
+            {
+                g = 0.0;
+            }
+
+            throw new Exception();
+
+            // Deliberately unreachable return
+            return g;
+        }
+    }
+}
+