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-rw-r--r--tests/src/JIT/Regression/JitBlue/DevDiv_142976/DevDiv_142976.cs56
-rw-r--r--tests/src/JIT/Regression/JitBlue/DevDiv_142976/DevDiv_142976.csproj46
2 files changed, 102 insertions, 0 deletions
diff --git a/tests/src/JIT/Regression/JitBlue/DevDiv_142976/DevDiv_142976.cs b/tests/src/JIT/Regression/JitBlue/DevDiv_142976/DevDiv_142976.cs
new file mode 100644
index 0000000000..7b0151793b
--- /dev/null
+++ b/tests/src/JIT/Regression/JitBlue/DevDiv_142976/DevDiv_142976.cs
@@ -0,0 +1,56 @@
+// 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;
+
+// This test case is meant to test an optimization in morph that
+// transforms helper call JIT_Stelem_Ref(a, null, i) to a[i] = null,
+// which further gets transformed into an array address and bounds
+// check nodes with references to the array local and the index
+// local. It is expected while doing such a transform, array
+// local and index local are appropriately ref counted and Value
+// number is updated post-global-morph and jit compilation
+// won't run into any asserts.
+class DevDiv_142976
+{
+ [MethodImpl(MethodImplOptions.NoInlining)]
+ public static String Foo()
+ {
+ return null;
+ }
+
+ [MethodImpl(MethodImplOptions.NoInlining)]
+ public static void Bar()
+ {
+ String[] args = new String[10];
+ if (args != null)
+ {
+ throw new Exception();
+ }
+
+ String s = Foo();
+ if (s == null)
+ {
+ // This will result in JIT_Stelem_Ref(args, null, 0) call
+ // which gets re-morphed into args[0] = null.
+ args[0] = s;
+ }
+ }
+
+ public static int Main()
+ {
+ try
+ {
+ Bar();
+ }
+ catch (Exception)
+ {
+ }
+
+ Console.WriteLine("Pass");
+ return 100;
+ }
+} \ No newline at end of file
diff --git a/tests/src/JIT/Regression/JitBlue/DevDiv_142976/DevDiv_142976.csproj b/tests/src/JIT/Regression/JitBlue/DevDiv_142976/DevDiv_142976.csproj
new file mode 100644
index 0000000000..0c1a10eb95
--- /dev/null
+++ b/tests/src/JIT/Regression/JitBlue/DevDiv_142976/DevDiv_142976.csproj
@@ -0,0 +1,46 @@
+<?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>$(MSBuildProjectName)</AssemblyName>
+ <SchemaVersion>2.0</SchemaVersion>
+ <ProjectGuid>{95DFC527-4DC1-495E-97D7-E94EE1F7140D}</ProjectGuid>
+ <OutputType>Exe</OutputType>
+ <AppDesignerFolder>Properties</AppDesignerFolder>
+ <FileAlignment>512</FileAlignment>
+ <ProjectTypeGuids>{786C830F-07A1-408B-BD7F-6EE04809D6DB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
+ <ReferencePath>$(ProgramFiles)\Common Files\microsoft shared\VSTT\11.0\UITestExtensionPackages</ReferencePath>
+ <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\..\</SolutionDir>
+
+ <NuGetPackageImportStamp>7a9bfb7d</NuGetPackageImportStamp>
+ </PropertyGroup>
+ <!-- Default configurations to help VS understand the configurations -->
+ <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+ </PropertyGroup>
+ <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+ </PropertyGroup>
+ <ItemGroup>
+ <CodeAnalysisDependentAssemblyPaths Condition=" '$(VS100COMNTOOLS)' != '' " Include="$(VS100COMNTOOLS)..\IDE\PrivateAssemblies">
+ <Visible>False</Visible>
+ </CodeAnalysisDependentAssemblyPaths>
+ </ItemGroup>
+ <PropertyGroup>
+ <DebugType></DebugType>
+ <Optimize>True</Optimize>
+ </PropertyGroup>
+ <ItemGroup>
+ <Compile Include="DevDiv_142976.cs" />
+ </ItemGroup>
+ <ItemGroup>
+ <Service Include="{82A7F48D-3B50-4B1E-B82E-3ADA8210C358}" />
+ </ItemGroup>
+ <PropertyGroup>
+ <ProjectJson>$(JitPackagesConfigFileDirectory)minimal\project.json</ProjectJson>
+ <ProjectLockJson>$(JitPackagesConfigFileDirectory)minimal\project.lock.json</ProjectLockJson>
+ </PropertyGroup>
+ <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.targets))\dir.targets" />
+ <PropertyGroup Condition=" '$(MsBuildProjectDirOverride)' != '' ">
+ </PropertyGroup>
+</Project>