diff options
Diffstat (limited to 'tests/src/JIT/HardwareIntrinsics/X86/Sse/ReciprocalScalar.cs')
-rw-r--r-- | tests/src/JIT/HardwareIntrinsics/X86/Sse/ReciprocalScalar.cs | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/tests/src/JIT/HardwareIntrinsics/X86/Sse/ReciprocalScalar.cs b/tests/src/JIT/HardwareIntrinsics/X86/Sse/ReciprocalScalar.cs new file mode 100644 index 0000000000..7758114ec5 --- /dev/null +++ b/tests/src/JIT/HardwareIntrinsics/X86/Sse/ReciprocalScalar.cs @@ -0,0 +1,87 @@ +// 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 System.Runtime.CompilerServices; +using System.Runtime.InteropServices; +using System.Runtime.Intrinsics.X86; +using System.Runtime.Intrinsics; + +namespace IntelHardwareIntrinsicTest +{ + class Program + { + const int Pass = 100; + const int Fail = 0; + + static unsafe int Main(string[] args) + { + int testResult = Pass; + + if (Sse.IsSupported) + { + using (TestTable<float> floatTable = new TestTable<float>(new float[4] { 1, -5, 100, 0 }, new float[4])) + { + + var vf1 = Unsafe.Read<Vector128<float>>(floatTable.inArrayPtr); + var vf2 = Sse.ReciprocalScalar(vf1); + Unsafe.Write(floatTable.outArrayPtr, vf2); + + if (!floatTable.CheckResult((x, y) => { + var expected = 1 / x[0]; + return ((Math.Abs(expected - y[0]) <= 0.0003662109375f) // |Relative Error| <= 1.5 * 2^-12 + || (float.IsNaN(expected) && float.IsNaN(y[0])) + || (float.IsNegativeInfinity(expected) && float.IsNegativeInfinity(y[0])) + || (float.IsPositiveInfinity(expected) && float.IsPositiveInfinity(y[0]))) + && (y[1] == x[1]) && (y[2] == x[2]) && (y[3] == x[3]); + })) + { + Console.WriteLine("SSE ReciprocalScalar failed on float:"); + foreach (var item in floatTable.outArray) + { + Console.Write(item + ", "); + } + Console.WriteLine(); + testResult = Fail; + } + } + } + + + return testResult; + } + + public unsafe struct TestTable<T> : IDisposable where T : struct + { + public T[] inArray; + public T[] outArray; + + public void* inArrayPtr => inHandle.AddrOfPinnedObject().ToPointer(); + public void* outArrayPtr => outHandle.AddrOfPinnedObject().ToPointer(); + + GCHandle inHandle; + GCHandle outHandle; + public TestTable(T[] a, T[] b) + { + this.inArray = a; + this.outArray = b; + + inHandle = GCHandle.Alloc(inArray, GCHandleType.Pinned); + outHandle = GCHandle.Alloc(outArray, GCHandleType.Pinned); + } + public bool CheckResult(Func<T[], T[], bool> check) + { + return check(inArray, outArray); + } + + public void Dispose() + { + inHandle.Free(); + outHandle.Free(); + } + } + + } +} |