diff options
author | sivarv <sivarv@microsoft.com> | 2016-12-05 11:59:57 -0800 |
---|---|---|
committer | sivarv <sivarv@microsoft.com> | 2016-12-05 14:54:14 -0800 |
commit | b22b27b984545259d139e6ff8b8e85e9f067251c (patch) | |
tree | d46faa43d22c00095b471e5599b12091fbabec00 /tests | |
parent | 55b1bb4e35807220a48391548238e29b075102bb (diff) | |
download | coreclr-b22b27b984545259d139e6ff8b8e85e9f067251c.tar.gz coreclr-b22b27b984545259d139e6ff8b8e85e9f067251c.tar.bz2 coreclr-b22b27b984545259d139e6ff8b8e85e9f067251c.zip |
Compare opt against zero involving a shift oper.
Diffstat (limited to 'tests')
-rw-r--r-- | tests/src/JIT/Regression/JitBlue/GitHub_8460/GitHub_8460.cs | 38 | ||||
-rw-r--r-- | tests/src/JIT/Regression/JitBlue/GitHub_8460/GitHub_8460.csproj | 46 |
2 files changed, 84 insertions, 0 deletions
diff --git a/tests/src/JIT/Regression/JitBlue/GitHub_8460/GitHub_8460.cs b/tests/src/JIT/Regression/JitBlue/GitHub_8460/GitHub_8460.cs new file mode 100644 index 0000000000..f5c9aa281b --- /dev/null +++ b/tests/src/JIT/Regression/JitBlue/GitHub_8460/GitHub_8460.cs @@ -0,0 +1,38 @@ +// 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; + +namespace bug +{ + class Program + { + static int Pass = 100; + static int Fail = -1; + + // This test is meant to check that in case of + // GT_EQ/NE(shift, 0), JIT doesn't optimize out + // 'test' instruction incorrectly, because shift + // operations on xarch don't modify flags if the + // shift count is zero. + static int Main(string[] args) + { + // Absolute bits + int bitCount = 0; + while ((0 != (100 >> bitCount)) && (31 > bitCount)) + { + bitCount++; + } + // Sign bit + bitCount++; + + if (bitCount != 8) + { + return Fail; + } + + return Pass; + } + } +} diff --git a/tests/src/JIT/Regression/JitBlue/GitHub_8460/GitHub_8460.csproj b/tests/src/JIT/Regression/JitBlue/GitHub_8460/GitHub_8460.csproj new file mode 100644 index 0000000000..b174dea98e --- /dev/null +++ b/tests/src/JIT/Regression/JitBlue/GitHub_8460/GitHub_8460.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="$(VS100COMNTOOLS)..\IDE\PrivateAssemblies"> + <Visible>False</Visible> + </CodeAnalysisDependentAssemblyPaths> + </ItemGroup> + <PropertyGroup> + <DebugType></DebugType> + <Optimize>True</Optimize> + </PropertyGroup> + <ItemGroup> + <Compile Include="$(MSBuildProjectName).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> |