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-rw-r--r--tests/src/JIT/Regression/JitBlue/GitHub_12392/GitHub_12392.cs108
-rw-r--r--tests/src/JIT/Regression/JitBlue/GitHub_12392/GitHub_12392.csproj38
2 files changed, 146 insertions, 0 deletions
diff --git a/tests/src/JIT/Regression/JitBlue/GitHub_12392/GitHub_12392.cs b/tests/src/JIT/Regression/JitBlue/GitHub_12392/GitHub_12392.cs
new file mode 100644
index 0000000..23058fd
--- /dev/null
+++ b/tests/src/JIT/Regression/JitBlue/GitHub_12392/GitHub_12392.cs
@@ -0,0 +1,108 @@
+// 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.Reflection;
+
+namespace Test
+{
+ // This is a regression test for a bug in fgMorphRecognizeBoxNullable.
+ // See the comment in Setting<T>.HasValue for details.
+ class Program
+ {
+
+ static int Main(string[] args)
+ {
+ Test t = new Test();
+ if (!t.TestMethod())
+ {
+ Console.WriteLine("SUCCESS");
+ return 100;
+ }
+ else
+ {
+ Console.WriteLine("FAILURE");
+ return 0;
+ }
+ }
+ }
+
+ class Test
+ {
+ Setting<bool?> supportInteractive = Setting.ForBool(null);
+
+ public bool TestMethod()
+ {
+ return this.supportInteractive.HasValue;
+ }
+ }
+
+ public class Setting<T>
+ {
+ Setting()
+ {
+ }
+
+ public Setting(T value)
+ {
+ this.value = value;
+ }
+
+ public bool HasValue
+ {
+ get
+ {
+ if (this.value != null)
+ {
+ Type t = this.value.GetType();
+ if (t.IsGenericType)
+ {
+ if (t.GetGenericTypeDefinition() == typeof(Nullable<>))
+ {
+ PropertyInfo hasValueProperty = t.GetProperty("HasValue");
+ bool result = (bool)hasValueProperty.GetValue(this.value, null);
+ return result;
+ }
+ }
+ }
+
+ // The bug reproduces when the C# compiler generates
+ // ldnull
+ // cgt.un
+ // ret
+ // for this statement.
+ // The code above this statement is necessary so that some assertions are
+ // propagated and the statement gets re-morphed.
+ // The bug in fgMorphRecognizeBoxNullable was that it couldn't deal
+ // with a morphed helper call correctly.
+ return null != this.value;
+ }
+ }
+
+ T value;
+ public T Value
+ {
+ get { return this.value; }
+ set { this.value = value; }
+ }
+ }
+
+ public class Setting
+ {
+ Setting()
+ {
+ ;
+ }
+
+ public static Setting<bool?> ForBool(string parameter)
+ {
+ if (null == parameter)
+ {
+ return new Setting<bool?>(null);
+ }
+ Setting<bool?> setting = new Setting<bool?>(bool.Parse(parameter));
+ return setting;
+ }
+ }
+}
diff --git a/tests/src/JIT/Regression/JitBlue/GitHub_12392/GitHub_12392.csproj b/tests/src/JIT/Regression/JitBlue/GitHub_12392/GitHub_12392.csproj
new file mode 100644
index 0000000..2cafa4c
--- /dev/null
+++ b/tests/src/JIT/Regression/JitBlue/GitHub_12392/GitHub_12392.csproj
@@ -0,0 +1,38 @@
+<?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=" '$(Configuration)' == '' ">Debug</Configuration>
+ <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+ <AssemblyName>$(MSBuildProjectName)</AssemblyName>
+ <SchemaVersion>2.0</SchemaVersion>
+ <ProjectGuid>{95DFC527-4DC1-495E-97D7-E94EE1F7140D}</ProjectGuid>
+ <OutputType>Exe</OutputType>
+ <ProjectTypeGuids>{786C830F-07A1-408B-BD7F-6EE04809D6DB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
+ <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\..\</SolutionDir>
+
+ </PropertyGroup>
+ <!-- Default configurations to help VS understand the configurations -->
+ <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+ </PropertyGroup>
+ <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+ </PropertyGroup>
+ <ItemGroup>
+ <CodeAnalysisDependentAssemblyPaths Condition=" '$(VS100COMNTOOLS)' != '' " Include="$(VS100COMNTOOLS)..\IDE\PrivateAssemblies">
+ <Visible>False</Visible>
+ </CodeAnalysisDependentAssemblyPaths>
+ </ItemGroup>
+ <PropertyGroup>
+ <DebugType></DebugType>
+ <Optimize>True</Optimize>
+ </PropertyGroup>
+ <ItemGroup>
+ <Compile Include="$(MSBuildProjectName).cs" />
+ </ItemGroup>
+ <ItemGroup>
+ <Service Include="{82A7F48D-3B50-4B1E-B82E-3ADA8210C358}" />
+ </ItemGroup>
+ <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.targets))\dir.targets" />
+ <PropertyGroup Condition=" '$(MsBuildProjectDirOverride)' != '' ">
+ </PropertyGroup>
+</Project>