From 192025c058d4875b7e96eec639037ce1cb097cf8 Mon Sep 17 00:00:00 2001
From: Kunal Pathak <Kunal.Pathak@microsoft.com>
Date: Mon, 9 Sep 2024 12:00:14 -0700
Subject: [PATCH] add test cases

---
 .../JitBlue/Runtime_105620/Runtime_105620.cs  | 199 ++++++++++++++++++
 .../Runtime_105620/Runtime_105620.csproj      |   8 +
 2 files changed, 207 insertions(+)
 create mode 100644 src/tests/JIT/Regression/JitBlue/Runtime_105620/Runtime_105620.cs
 create mode 100644 src/tests/JIT/Regression/JitBlue/Runtime_105620/Runtime_105620.csproj

diff --git a/src/tests/JIT/Regression/JitBlue/Runtime_105620/Runtime_105620.cs b/src/tests/JIT/Regression/JitBlue/Runtime_105620/Runtime_105620.cs
new file mode 100644
index 0000000000000..f903c7ef22483
--- /dev/null
+++ b/src/tests/JIT/Regression/JitBlue/Runtime_105620/Runtime_105620.cs
@@ -0,0 +1,199 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+// Generated by Fuzzlyn v2.1 on 2024-07-28 20:48:11
+// Run on Arm Linux
+// Seed: 7638843082097772896
+// Reduced from 1010.6 KiB to 5.3 KiB in 00:18:13
+// Hits JIT assert in Release:
+// Assertion failed 'baseRegUsed == reg2' in 'Program:M48(S0,S3,S2,S2)' during 'Generate code' (IL size 2164; hash 0x03983244; FullOpts)
+// 
+//     File: /__w/1/s/src/coreclr/jit/emitarm.cpp Line: 3919
+// 
+using System;
+using System.Runtime.CompilerServices;
+using Xunit;
+
+public struct S0
+{
+    public ulong F0;
+    public int F1;
+    public long F2;
+    public uint F3;
+    public byte F4;
+    public float F5;
+    public sbyte F6;
+    public double F7;
+    public sbyte F8;
+}
+
+public struct S1
+{
+    public double F0;
+    public short F1;
+    public bool F2;
+    public S0 F3;
+    public sbyte F4;
+    public ushort F5;
+    public ulong F6;
+    public int F7;
+    public S0 F8;
+}
+
+public struct S2
+{
+    public double F0;
+    public S0 F1;
+    public S1 F2;
+    public ushort F4;
+    public S2(S1 f2)
+    {
+        F2 = f2;
+    }
+}
+
+public class C0
+{
+}
+
+public struct S3
+{
+    public double F0;
+    public float F1;
+    public ushort F2;
+    public long F3;
+    public S1 F4;
+    public S2 F5;
+    public S2 F6;
+    public uint F7;
+    public S2 F8;
+    public S3(S2 f5, S2 f8) : this()
+    {
+        F5 = f5;
+        F8 = f8;
+    }
+}
+
+public struct S4
+{
+    public double F0;
+    public double F1;
+    public float F2;
+    public ulong F3;
+    public bool F4;
+    public int F5;
+    public bool F6;
+    public S3 F7;
+    public float F8;
+    public S4(S3 f7)
+    {
+        F7 = f7;
+    }
+}
+
+public class Program
+{
+    public static IRuntime s_rt;
+    public static S4 s_2;
+    public static S4 s_3;
+    public static S4[][] s_6;
+    public static S3[] s_23 = new S3[]
+    {
+        new S3(new S2(new S1()), new S2(new S1()))
+    };
+    
+    [Fact]
+    public static void TestEntryPoint()
+    {
+        try
+        {
+            var vr8 = new S4(new S3(new S2(new S1()), new S2(new S1())));
+            var vr9 = s_23[0].F6.F1;
+            var vr13 = s_2.F7;
+            var vr14 = vr8.F7.F6;
+            var vr15 = vr8.F7.F6;
+            M48(vr9, vr13, vr14, vr15);
+        } catch {}
+    }
+
+    public static void M48(S0 argThis, S3 arg0, S2 arg1, S2 arg2)
+    {
+        arg2.F2.F0 = arg2.F2.F0;
+        S4 var1 = new S4(new S3(new S2(new S1()), new S2(new S1())));
+        var1.F7.F5.F2.F8.F5 = s_6[0][0].F7.F8.F2.F3.F5;
+        var vr2 = new C0();
+        M49(0, vr2, ref arg2.F2.F1, ref s_3.F7, ref arg1.F1.F8);
+        S4 var2 = var1;
+        s_rt.WriteLine(System.BitConverter.DoubleToUInt64Bits(var2.F7.F0));
+        s_rt.WriteLine(System.BitConverter.SingleToUInt32Bits(var2.F7.F1));
+        s_rt.WriteLine(var2.F7.F2);
+        s_rt.WriteLine(var2.F7.F3);
+        s_rt.WriteLine(System.BitConverter.DoubleToUInt64Bits(var2.F7.F4.F0));
+        s_rt.WriteLine(var2.F7.F4.F1);
+        s_rt.WriteLine(var2.F7.F4.F2);
+        s_rt.WriteLine(var2.F7.F4.F3.F0);
+        s_rt.WriteLine(var2.F7.F4.F3.F1);
+        s_rt.WriteLine(var2.F7.F4.F3.F2);
+        s_rt.WriteLine(var2.F7.F4.F3.F3);
+        s_rt.WriteLine(var2.F7.F4.F3.F4);
+        s_rt.WriteLine(System.BitConverter.SingleToUInt32Bits(var2.F7.F4.F3.F5));
+        s_rt.WriteLine(var2.F7.F4.F3.F6);
+        s_rt.WriteLine(System.BitConverter.DoubleToUInt64Bits(var2.F7.F4.F3.F7));
+        s_rt.WriteLine(var2.F7.F4.F3.F8);
+        s_rt.WriteLine(var2.F7.F4.F4);
+        s_rt.WriteLine(var2.F7.F4.F5);
+        s_rt.WriteLine(var2.F7.F4.F6);
+        s_rt.WriteLine(var2.F7.F4.F7);
+        s_rt.WriteLine(var2.F7.F4.F8.F0);
+        s_rt.WriteLine(var2.F7.F4.F8.F1);
+        s_rt.WriteLine(var2.F7.F4.F8.F2);
+        s_rt.WriteLine(var2.F7.F4.F8.F3);
+        s_rt.WriteLine(var2.F7.F4.F8.F4);
+        s_rt.WriteLine(System.BitConverter.SingleToUInt32Bits(var2.F7.F4.F8.F5));
+        s_rt.WriteLine(var2.F7.F4.F8.F6);
+        s_rt.WriteLine(System.BitConverter.DoubleToUInt64Bits(var2.F7.F4.F8.F7));
+        s_rt.WriteLine(var2.F7.F4.F8.F8);
+        s_rt.WriteLine(System.BitConverter.DoubleToUInt64Bits(var2.F7.F5.F0));
+        s_rt.WriteLine(var2.F7.F5.F1.F0);
+        s_rt.WriteLine(var2.F7.F5.F1.F1);
+        s_rt.WriteLine(var2.F7.F5.F1.F2);
+        s_rt.WriteLine(var2.F7.F5.F1.F3);
+        s_rt.WriteLine(var2.F7.F5.F1.F4);
+        s_rt.WriteLine(System.BitConverter.SingleToUInt32Bits(var2.F7.F5.F1.F5));
+        s_rt.WriteLine(var2.F7.F5.F1.F6);
+        s_rt.WriteLine(System.BitConverter.DoubleToUInt64Bits(var2.F7.F5.F1.F7));
+        s_rt.WriteLine(var2.F7.F5.F1.F8);
+        s_rt.WriteLine(System.BitConverter.DoubleToUInt64Bits(var2.F7.F5.F2.F0));
+        s_rt.WriteLine(var2.F7.F5.F2.F1);
+        s_rt.WriteLine(var2.F7.F5.F2.F2);
+        s_rt.WriteLine(var2.F7.F5.F2.F3.F0);
+        s_rt.WriteLine(var2.F7.F5.F2.F3.F1);
+        s_rt.WriteLine(var2.F7.F5.F2.F3.F2);
+        s_rt.WriteLine(var2.F7.F5.F2.F3.F3);
+        s_rt.WriteLine(var2.F7.F5.F2.F3.F4);
+        s_rt.WriteLine(System.BitConverter.SingleToUInt32Bits(var2.F7.F5.F2.F3.F5));
+        s_rt.WriteLine(var2.F7.F5.F2.F3.F6);
+        s_rt.WriteLine(System.BitConverter.DoubleToUInt64Bits(var2.F7.F5.F2.F3.F7));
+        s_rt.WriteLine(var2.F7.F5.F2.F3.F8);
+        s_rt.WriteLine(var2.F7.F5.F2.F4);
+        s_rt.WriteLine(var2.F7.F5.F2.F5);
+        s_rt.WriteLine(var2.F7.F5.F2.F6);
+        s_rt.WriteLine(var2.F7.F5.F2.F7);
+        s_rt.WriteLine(var2.F7.F5.F2.F8.F0);
+    }
+
+    public static void M49(short arg0, C0 arg2, ref short arg3, ref S3 arg4, ref sbyte arg5)
+    {
+        s_rt.WriteLine(arg0);
+    }
+}
+
+public interface IRuntime
+{
+    void WriteLine<T>(T value);
+}
+
+public class Runtime : IRuntime
+{
+    public void WriteLine<T>(T value) => System.Console.WriteLine(value);
+}
\ No newline at end of file
diff --git a/src/tests/JIT/Regression/JitBlue/Runtime_105620/Runtime_105620.csproj b/src/tests/JIT/Regression/JitBlue/Runtime_105620/Runtime_105620.csproj
new file mode 100644
index 0000000000000..de6d5e08882e8
--- /dev/null
+++ b/src/tests/JIT/Regression/JitBlue/Runtime_105620/Runtime_105620.csproj
@@ -0,0 +1,8 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <Optimize>True</Optimize>
+  </PropertyGroup>
+  <ItemGroup>
+    <Compile Include="$(MSBuildProjectName).cs" />
+  </ItemGroup>
+</Project>