From 4b4aad7217d3292650e77eec2cf4c198ea9c3b4b Mon Sep 17 00:00:00 2001
From: Jiyoung Yun <jy910.yun@samsung.com>
Date: Wed, 23 Nov 2016 19:09:09 +0900
Subject: Imported Upstream version 1.1.0

---
 .../binarytrees/binarytrees.csharp.cs              | 151 +++++++++++++++++++++
 .../BenchmarksGame/binarytrees/binarytrees.csproj  |  44 ++++++
 2 files changed, 195 insertions(+)
 create mode 100644 tests/src/JIT/Performance/CodeQuality/BenchmarksGame/binarytrees/binarytrees.csharp.cs
 create mode 100644 tests/src/JIT/Performance/CodeQuality/BenchmarksGame/binarytrees/binarytrees.csproj

(limited to 'tests/src/JIT/Performance/CodeQuality/BenchmarksGame/binarytrees')

diff --git a/tests/src/JIT/Performance/CodeQuality/BenchmarksGame/binarytrees/binarytrees.csharp.cs b/tests/src/JIT/Performance/CodeQuality/BenchmarksGame/binarytrees/binarytrees.csharp.cs
new file mode 100644
index 0000000000..e4118b2963
--- /dev/null
+++ b/tests/src/JIT/Performance/CodeQuality/BenchmarksGame/binarytrees/binarytrees.csharp.cs
@@ -0,0 +1,151 @@
+// 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.
+/* The Computer Language Benchmarks Game
+   http://benchmarksgame.alioth.debian.org/ 
+
+   contributed by Marek Safar  
+
+   modified for use with xunit-performance
+*/
+
+using Microsoft.Xunit.Performance;
+using System;
+using System.Runtime.CompilerServices;
+using Xunit;
+
+[assembly: OptimizeForBenchmarks]
+[assembly: MeasureInstructionsRetired]
+
+public class BinaryTrees
+{
+    private const int minDepth = 4;
+    private const int Iterations = 1;
+
+    [MethodImpl(MethodImplOptions.NoInlining)]
+    private static bool Bench(bool verbose = false)
+    {
+        int n = 16;
+        int maxDepth = Math.Max(minDepth + 2, n);
+        int stretchDepth = maxDepth + 1;
+        int t = 0;
+
+        int check = (TreeNode.bottomUpTree(0, stretchDepth)).itemCheck();
+        if (verbose)
+        {
+            Console.WriteLine("stretch tree of depth {0}\t check: {1}", stretchDepth, check);
+        }
+        t += check;
+
+        TreeNode longLivedTree = TreeNode.bottomUpTree(0, maxDepth);
+
+        for (int depth = minDepth; depth <= maxDepth; depth += 2)
+        {
+            int iterations = 1 << (maxDepth - depth + minDepth);
+
+            check = 0;
+            for (int i = 1; i <= iterations; i++)
+            {
+                check += (TreeNode.bottomUpTree(i, depth)).itemCheck();
+                check += (TreeNode.bottomUpTree(-i, depth)).itemCheck();
+            }
+
+            if (verbose)
+            {
+                Console.WriteLine("{0}\t trees of depth {1}\t check: {2}",
+                    iterations * 2, depth, check);
+            }
+
+            t += check;
+        }
+
+        if (verbose)
+        {
+            Console.WriteLine("long lived tree of depth {0}\t check: {1}",
+                maxDepth, longLivedTree.itemCheck());
+        }
+
+        t += check;
+
+        return (t == -174785);
+    }
+
+    private struct TreeNode
+    {
+        private class Next
+        {
+            public TreeNode left, right;
+        }
+
+        private Next _next;
+        private int _item;
+
+        private TreeNode(int item)
+        {
+            _item = item;
+            _next = null;
+        }
+
+        internal static TreeNode bottomUpTree(int item, int depth)
+        {
+            if (depth > 0)
+            {
+                return new TreeNode(
+                     bottomUpTree(2 * item - 1, depth - 1)
+                   , bottomUpTree(2 * item, depth - 1)
+                   , item
+                   );
+            }
+            else
+            {
+                return new TreeNode(item);
+            }
+        }
+
+        private TreeNode(TreeNode left, TreeNode right, int item)
+        {
+            _next = new Next();
+            _next.left = left;
+            _next.right = right;
+            _item = item;
+        }
+
+        internal int itemCheck()
+        {
+            // if necessary deallocate here
+            if (_next == null) return _item;
+            else return _item + _next.left.itemCheck() - _next.right.itemCheck();
+        }
+    }
+
+    [Benchmark]
+    public static void Test()
+    {
+        foreach (var iteration in Benchmark.Iterations)
+        {
+            using (iteration.StartMeasurement())
+            {
+                for (int i = 0; i < Iterations; i++)
+                {
+                    Bench();
+                }
+            }
+        }
+    }
+
+    private static bool TestBase()
+    {
+        bool result = true;
+        for (int i = 0; i < Iterations; i++)
+        {
+            result &= Bench(true);
+        }
+        return result;
+    }
+
+    public static int Main()
+    {
+        bool result = TestBase();
+        return (result ? 100 : -1);
+    }
+}
diff --git a/tests/src/JIT/Performance/CodeQuality/BenchmarksGame/binarytrees/binarytrees.csproj b/tests/src/JIT/Performance/CodeQuality/BenchmarksGame/binarytrees/binarytrees.csproj
new file mode 100644
index 0000000000..d970a78c23
--- /dev/null
+++ b/tests/src/JIT/Performance/CodeQuality/BenchmarksGame/binarytrees/binarytrees.csproj
@@ -0,0 +1,44 @@
+<?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>
+    <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 $(SolutionDir) == '*Undefined*'">..\..\</SolutionDir>
+    <NuGetPackageImportStamp>7a9bfb7d</NuGetPackageImportStamp>
+    <NuGetTargetMoniker>.NETStandard,Version=v1.4</NuGetTargetMoniker>
+    <GCStressIncompatible>true</GCStressIncompatible>
+  </PropertyGroup>
+  <!-- Default configurations to help VS understand the configurations -->
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+  </PropertyGroup>
+  <ItemGroup>
+    <CodeAnalysisDependentAssemblyPaths Condition=" '$(VS100COMNTOOLS)' != '' " Include="$(VS100COMNTOOLS)..\IDE\PrivateAssemblies">
+      <Visible>False</Visible>
+    </CodeAnalysisDependentAssemblyPaths>
+  </ItemGroup>
+  <ItemGroup>
+    <Service Include="{82A7F48D-3B50-4B1E-B82E-3ADA8210C358}" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="binarytrees.csharp.cs" />
+  </ItemGroup>
+  <PropertyGroup>
+    <ProjectJson>$(JitPackagesConfigFileDirectory)benchmark\project.json</ProjectJson>
+    <ProjectLockJson>$(JitPackagesConfigFileDirectory)benchmark\project.lock.json</ProjectLockJson>
+  </PropertyGroup>
+  <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.targets))\dir.targets" />
+  <PropertyGroup Condition=" '$(MsBuildProjectDirOverride)' != '' ">
+  </PropertyGroup>
+</Project>
-- 
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