1 files changed, 23 insertions, 0 deletions
diff --git a/src/mscorlib/shared/System/Runtime/CompilerServices/CompilationRelaxationsAttribute.cs b/src/mscorlib/shared/System/Runtime/CompilerServices/CompilationRelaxationsAttribute.cs
new file mode 100644
index 0000000000..1f100bd415
--- /dev/null
+++ b/src/mscorlib/shared/System/Runtime/CompilerServices/CompilationRelaxationsAttribute.cs
@@ -0,0 +1,23 @@
+// 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.
+
+namespace System.Runtime.CompilerServices
+{
+    [Serializable]
+    [AttributeUsage(AttributeTargets.Assembly | AttributeTargets.Module | AttributeTargets.Class | AttributeTargets.Method)]
+    public class CompilationRelaxationsAttribute : Attribute
+    {
+        public CompilationRelaxationsAttribute(int relaxations)
+        {
+            CompilationRelaxations = relaxations;
+        }
+
+        public CompilationRelaxationsAttribute(CompilationRelaxations relaxations)
+        {
+            CompilationRelaxations = (int)relaxations;
+        }
+
+        public int CompilationRelaxations { get; }
+    }
+}