Imported Upstream version 1.1.0upstream/1.1.0

2 files changed, 136 insertions, 0 deletions

diff --git a/tests/src/JIT/Performance/CodeQuality/BenchF/Simpsn/Simpsn.cs b/tests/src/JIT/Performance/CodeQuality/BenchF/Simpsn/Simpsn.cs
new file mode 100644
index 0000000000..e1e9f0eb1f
--- /dev/null
+++ b/tests/src/JIT/Performance/CodeQuality/BenchF/Simpsn/Simpsn.cs
@@ -0,0 +1,93 @@
+// 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.
+//
+// Integration by Simpson's rule adapted from Conte and de Boor
+
+using Microsoft.Xunit.Performance;
+using System;
+using System.Runtime.CompilerServices;
+using Xunit;
+
+[assembly: OptimizeForBenchmarks]
+[assembly: MeasureInstructionsRetired]
+
+public static class Simpsn
+{
+#if DEBUG
+    public const int Iterations = 1;
+#else
+    public const int Iterations = 90000;
+#endif
+
+    [MethodImpl(MethodImplOptions.NoInlining)]
+    private static bool Bench()
+    {
+        double a, b, x, s, c, h, hov2, half, t1;
+        int idbg, n, nm1;
+
+        s = 0;
+        idbg = 0;
+        if (idbg != 0)
+        {
+            System.Console.WriteLine("simpsons rule\n");
+        }
+
+        for (int j = 1; j <= Iterations; j++)
+        {
+            a = 0;
+            b = 1;
+            c = 4;
+            n = 100;
+            h = (b - a) / n;
+            hov2 = h / System.Math.Sqrt(c);
+            s = 0;
+            t1 = a + hov2;
+            half = F(t1);
+            nm1 = n - 1;
+            for (int i = 1; i <= nm1; i++)
+            {
+                x = a + i * h;
+                s = s + F(x);
+                t1 = x + hov2;
+                half = half + F(t1);
+                s = (h / 6) * (F(a) + 4 * half + 2 * s + F(b));
+                if (idbg != 0)
+                {
+                    System.Console.WriteLine(" integral from a = {0} to b = {1} for n = {2} is {3}\n", a, b, n, s);
+                }
+            }
+        }
+
+        return true;
+    }
+
+    private static double F(double x)
+    {
+        return (System.Math.Exp((-(x)) * 2));
+    }
+
+    [Benchmark]
+    public static void Test()
+    {
+        foreach (var iteration in Benchmark.Iterations)
+        {
+            using (iteration.StartMeasurement())
+            {
+                Bench();
+            }
+        }
+    }
+
+    private static bool TestBase()
+    {
+        bool result = Bench();
+        return result;
+    }
+
+    public static int Main()
+    {
+        bool result = TestBase();
+        return (result ? 100 : -1);
+    }
+}
diff --git a/tests/src/JIT/Performance/CodeQuality/BenchF/Simpsn/Simpsn.csproj b/tests/src/JIT/Performance/CodeQuality/BenchF/Simpsn/Simpsn.csproj
new file mode 100644
index 0000000000..67f81313f6
--- /dev/null
+++ b/tests/src/JIT/Performance/CodeQuality/BenchF/Simpsn/Simpsn.csproj
@@ -0,0 +1,43 @@
+<?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 $(SolutionDir) == '*Undefined*'">..\..\</SolutionDir>
+    <NuGetPackageImportStamp>7a9bfb7d</NuGetPackageImportStamp>
+    <NuGetTargetMoniker>.NETStandard,Version=v1.4</NuGetTargetMoniker>
+  </PropertyGroup>
+  <!-- Default configurations to help VS understand the configurations -->
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+  </PropertyGroup>
+  <ItemGroup>
+    <CodeAnalysisDependentAssemblyPaths Condition=" '$(VS100COMNTOOLS)' != '' " Include="$(VS100COMNTOOLS)..\IDE\PrivateAssemblies">
+      <Visible>False</Visible>
+    </CodeAnalysisDependentAssemblyPaths>
+  </ItemGroup>
+  <ItemGroup>
+    <Service Include="{82A7F48D-3B50-4B1E-B82E-3ADA8210C358}" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Simpsn.cs" />
+  </ItemGroup>
+  <PropertyGroup>
+    <ProjectJson>$(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>