Imported Upstream version 2.0.0.11599upstream/2.0.0.11599

1 files changed, 58 insertions, 0 deletions

diff --git a/tests/src/JIT/Regression/JitBlue/GitHub_10940/GitHub_10940.cs b/tests/src/JIT/Regression/JitBlue/GitHub_10940/GitHub_10940.cs
new file mode 100644
index 0000000000..2a72bd8a85
--- /dev/null
+++ b/tests/src/JIT/Regression/JitBlue/GitHub_10940/GitHub_10940.cs
@@ -0,0 +1,58 @@
+// 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.Runtime.CompilerServices;
+
+// This test checks whether or not the JIT properly spills side effects in the importer when dumping multi-reg values
+// to temps. If the JIT does not do so correctly, the calls to GetString() and GetDecimal() will be reordered and the
+// test will fail with exit code 0; if it does do so correctly, the calls will not be reordered and the test will
+// pass.
+
+class Test
+{
+    abstract class ValueSourceBase
+    {
+        public abstract string GetString();
+        public abstract decimal GetDecimal();
+        public abstract int GetReturnValue();
+    }
+
+    class ValueSource : ValueSourceBase
+    {
+        int rv;
+
+        public override string GetString()
+        {
+            rv = 0;
+            return "";
+        }
+
+        public override decimal GetDecimal()
+        {
+            rv = 100;
+            return 0;
+        }
+
+        public override int GetReturnValue()
+        {
+            return rv;
+        }
+    }
+
+    Test(string s, decimal d)
+    {
+    }
+
+    [MethodImpl(MethodImplOptions.NoInlining)]
+    static int M(ValueSourceBase vs)
+    {
+        new Test(vs.GetString(), vs.GetDecimal());
+        return vs.GetReturnValue();
+    }
+
+    static int Main()
+    {
+        return M(new ValueSource());
+    }
+}