1 files changed, 13 insertions, 0 deletions
diff --git a/src/mscorlib/shared/System/Runtime/CompilerServices/IntrinsicAttribute.cs b/src/mscorlib/shared/System/Runtime/CompilerServices/IntrinsicAttribute.cs
new file mode 100644
index 0000000000..dd01bacc49
--- /dev/null
+++ b/src/mscorlib/shared/System/Runtime/CompilerServices/IntrinsicAttribute.cs
@@ -0,0 +1,13 @@
+// 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
+{
+    // Calls to methods or references to fields marked with this attribute may be replaced at
+    // some call sites with jit intrinsic expansions.
+    [AttributeUsage(AttributeTargets.Method | AttributeTargets.Constructor | AttributeTargets.Field, Inherited = false)]
+    internal sealed class IntrinsicAttribute : Attribute
+    {
+    }
+}