Merge pull request #19125 from mikedn/cse-extract

[WIP] Fix CSE side effect and definition extraction

2 files changed, 133 insertions, 0 deletions

diff --git a/tests/src/JIT/Regression/JitBlue/GitHub_18770/GitHub_18770.cs b/tests/src/JIT/Regression/JitBlue/GitHub_18770/GitHub_18770.cs
new file mode 100644
index 0000000000..fde882df11
--- /dev/null
+++ b/tests/src/JIT/Regression/JitBlue/GitHub_18770/GitHub_18770.cs
@@ -0,0 +1,116 @@
+// 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;
+using System.Runtime.CompilerServices;
+
+class Program
+{
+    static int Main()
+    {
+        return (Test1.Run() & Test2.Run() & Test3.Run()) ? 100 : -1;
+    }
+}
+
+class Test1
+{
+    class C0
+    {
+        public sbyte F0;
+        public ushort F7;
+        public uint F8;
+    }
+
+    static C0 s_1;
+
+    public static bool Run()
+    {
+        s_1 = new C0();
+        try
+        {
+            M0();
+            return true;
+        }
+        catch (NullReferenceException)
+        {
+            return false;
+        }
+    }
+
+    [MethodImpl(MethodImplOptions.NoInlining)]
+    static void M0()
+    {
+#pragma warning disable 1717, 1718
+        bool vr0 = (s_1.F7 < s_1.F0) ^ (s_1.F8 != s_1.F8);
+        if (vr0)
+        {
+            s_1.F7 = s_1.F7;
+        }
+    }
+}
+
+class Test2
+{
+    class C0
+    {
+        public long F0;
+        public C0(long f0)
+        {
+            F0 = f0;
+        }
+    }
+
+    static char s_1;
+    static ulong s_2 = 1;
+    static int s_6;
+    static C0 s_7;
+    static C0 s_9 = new C0(-1L);
+
+    public static bool Run()
+    {
+        s_6 = 0;
+        M1();
+        return s_7.F0 == 0;
+    }
+
+    [MethodImpl(MethodImplOptions.NoInlining)]
+    static void M1()
+    {
+        long vr1 = ((0 & (M2() + s_9.F0)) | s_1) / (long)s_2;
+        s_7 = s_9;
+    }
+
+    static int M2()
+    {
+        s_9 = new C0(0);
+        return s_6;
+    }
+}
+
+class Test3
+{
+    public static bool Run()
+    {
+        try
+        {
+            M5(new ulong[0]);
+            return false;
+        }
+        catch (IndexOutOfRangeException)
+        {
+            return true;
+        }
+        catch (DivideByZeroException)
+        {
+            return false;
+        }
+    }
+
+    [MethodImpl(MethodImplOptions.NoInlining)]
+    static byte M5(ulong[] arg0)
+    {
+        int var0 = (ushort)((0 % arg0[0]) | (byte)(-32768 * (int)(0 & arg0[0])));
+        return (byte)var0;
+    }
+}
diff --git a/tests/src/JIT/Regression/JitBlue/GitHub_18770/GitHub_18770.csproj b/tests/src/JIT/Regression/JitBlue/GitHub_18770/GitHub_18770.csproj
new file mode 100644
index 0000000000..d86ed9f3d7
--- /dev/null
+++ b/tests/src/JIT/Regression/JitBlue/GitHub_18770/GitHub_18770.csproj
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.props))\dir.props" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Release</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <AssemblyName>$(MSBuildProjectName)</AssemblyName>
+    <OutputType>Exe</OutputType>
+    <DebugType></DebugType>
+    <Optimize>True</Optimize>
+  </PropertyGroup>
+  <ItemGroup>
+    <Compile Include="$(MSBuildProjectName).cs" />
+  </ItemGroup>
+  <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.targets))\dir.targets" />
+  <PropertyGroup Condition=" '$(MsBuildProjectDirOverride)' != '' "></PropertyGroup>
+</Project>
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