Repro case for dotnet#87597

src/tests/Regressions/coreclr/GitHub_87597/GitHub_87597.cs

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+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System;
+using System.Runtime.CompilerServices;
+
+// Class init for devirtualized calls triggered by PGO does not behave correctly
+// This test requires a class initializer on both the interface and on the type in use
+// and requires that type to be generic
+
+public class GitHub_87597
+{
+    public interface IFace
+    {
+        static IFace() {}
+        void Method();
+    }
+
+    public class GenericType<T> : IFace
+    {
+        static GenericType()
+        {
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void Method()
+        {
+        }
+    }
+
+    [MethodImpl(MethodImplOptions.NoInlining)]
+    public static void TestL1(IFace iface)
+    {
+        iface.Method();
+    }
+
+    public static int Main()
+    {
+        for (int i = 0; i < 100; i++)
+        {
+            System.Threading.Thread.Sleep(16);
+            TestL1(new GenericType<string>());
+        }
+
+        return 100;
+    }
+}

src/tests/Regressions/coreclr/GitHub_87597/GitHub_87597.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+    <Optimize>True</Optimize>
+  </PropertyGroup>
+  <ItemGroup>
+    <Compile Include="$(MSBuildThisFileName).cs" />
+  </ItemGroup>
+</Project>