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-rw-r--r--tests/src/JIT/Performance/CodeQuality/Math/Functions/Single/CeilingSingle.cs47
1 files changed, 47 insertions, 0 deletions
diff --git a/tests/src/JIT/Performance/CodeQuality/Math/Functions/Single/CeilingSingle.cs b/tests/src/JIT/Performance/CodeQuality/Math/Functions/Single/CeilingSingle.cs
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+++ b/tests/src/JIT/Performance/CodeQuality/Math/Functions/Single/CeilingSingle.cs
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+// 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 Microsoft.Xunit.Performance;
+
+namespace Functions
+{
+ public static partial class MathTests
+ {
+ // Tests MathF.Ceiling(float) over 5000 iterations for the domain -1, +1
+
+ private const float ceilingSingleDelta = 0.0004f;
+ private const float ceilingSingleExpectedResult = 2502.0f;
+
+ [Benchmark]
+ public static void CeilingSingleBenchmark()
+ {
+ foreach (var iteration in Benchmark.Iterations)
+ {
+ using (iteration.StartMeasurement())
+ {
+ CeilingSingleTest();
+ }
+ }
+ }
+
+ public static void CeilingSingleTest()
+ {
+ var result = 0.0f; var value = -1.0f;
+
+ for (var iteration = 0; iteration < iterations; iteration++)
+ {
+ value += ceilingSingleDelta;
+ result += MathF.Ceiling(value);
+ }
+
+ var diff = MathF.Abs(ceilingSingleExpectedResult - result);
+
+ if (diff > singleEpsilon)
+ {
+ throw new Exception($"Expected Result {ceilingSingleExpectedResult,10:g9}; Actual Result {result,10:g9}");
+ }
+ }
+ }
+}