Add the BenchF/Dmath Benchstone benchmark in the Xunit.performance format.

2 files changed, 147 insertions, 0 deletions

diff --git a/tests/src/JIT/Performance/CodeQuality/BenchF/DMath/DMath.cs b/tests/src/JIT/Performance/CodeQuality/BenchF/DMath/DMath.cs
new file mode 100644
index 0000000000..b90127b874
--- /dev/null
+++ b/tests/src/JIT/Performance/CodeQuality/BenchF/DMath/DMath.cs
@@ -0,0 +1,102 @@
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+//
+
+using Microsoft.Xunit.Performance;
+using System;
+using System.Runtime.CompilerServices;
+using Xunit;
+
+[assembly: OptimizeForBenchmarks]
+[assembly: MeasureInstructionsRetired]
+
+public static class DMath
+{
+
+#if DEBUG
+    public const int Iterations = 1;
+#else
+    public const int Iterations = 100000;
+#endif
+
+    const double Deg2Rad = 57.29577951;
+    static volatile object VolatileObject;
+
+    static void Escape(object obj) {
+        VolatileObject = obj;
+    }
+
+    static double Fact(double n)
+    {
+       double res;
+       res = 1.0;
+       while (n > 0.0) {
+          res *= n;
+          n -= 1.0;
+       }
+
+       return res;
+    }
+
+    static double Power(double n, double p)
+    {
+       double res;
+       res = 1.0;
+       while (p > 0.0) {
+          res *= n;
+          p -= 1.0;
+       }
+
+       return res;
+    }
+
+    [MethodImpl(MethodImplOptions.NoInlining)]
+    static bool Bench(int loop)
+    {
+       double[] sines = new double[91];
+       double angle, radians, sine, worksine, temp, k;
+       double diff;
+
+       for (int iter = 1; iter <= loop; iter++) {
+           for (angle = 0.0; angle <= 90.0; angle += 1.0) {
+               radians = angle / Deg2Rad;
+               k = 0.0;
+               worksine = 0.0;
+               do {
+                   sine = worksine;
+                   temp = (2.0 * k) + 1.0;
+                   worksine += (Power(-1.0, k) / Fact(temp)) * Power(radians, temp);
+                   k += 1.0;
+                   diff = Math.Abs(sine - worksine);
+               } while (diff > 1E-8);
+
+               sines[(int)angle] = worksine;
+           }
+       }
+
+       // Escape sines array so that its elements appear live-out
+       Escape(sines);
+
+       return true;
+    }
+
+    [Benchmark]
+    public static void Test() {
+        foreach (var iteration in Benchmark.Iterations) {
+            using (iteration.StartMeasurement()) {
+                Bench(Iterations);
+            }
+        }
+    }
+
+    static bool TestBase() {
+        bool result = Bench(Iterations);
+        return result;
+    }
+
+    public static int Main() {
+        bool result = TestBase();
+        return (result ? 100 : -1);
+    }
+}
+
diff --git a/tests/src/JIT/Performance/CodeQuality/BenchF/DMath/DMath.csproj b/tests/src/JIT/Performance/CodeQuality/BenchF/DMath/DMath.csproj
new file mode 100644
index 0000000000..a8e767d05e
--- /dev/null
+++ b/tests/src/JIT/Performance/CodeQuality/BenchF/DMath/DMath.csproj
@@ -0,0 +1,45 @@
+<?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 $(SolutionDir) == '*Undefined*'">..\..\</SolutionDir>
+    <NuGetPackageImportStamp>7a9bfb7d</NuGetPackageImportStamp>
+  </PropertyGroup>
+  <!-- Default configurations to help VS understand the configurations -->
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+  </PropertyGroup>
+  <ItemGroup>
+    <CodeAnalysisDependentAssemblyPaths Condition=" '$(VS100COMNTOOLS)' != '' " Include="$(VS100COMNTOOLS)..\IDE\PrivateAssemblies">
+      <Visible>False</Visible>
+    </CodeAnalysisDependentAssemblyPaths>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="$(JitPackagesConfigFileDirectory)benchmark\project.json" />
+  </ItemGroup>
+  <ItemGroup>
+    <Service Include="{82A7F48D-3B50-4B1E-B82E-3ADA8210C358}" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="DMath.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>