Updating several of the Sse HardwareIntrinsic tests to be generated from a template.

1 files changed, 209 insertions, 0 deletions

diff --git a/tests/src/JIT/HardwareIntrinsics/X86/Sse/SubtractScalar.Single.cs b/tests/src/JIT/HardwareIntrinsics/X86/Sse/SubtractScalar.Single.cs
new file mode 100644
index 0000000000..d3f149289d
--- /dev/null
+++ b/tests/src/JIT/HardwareIntrinsics/X86/Sse/SubtractScalar.Single.cs
@@ -0,0 +1,209 @@
+// 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;
+using System.Runtime.Intrinsics.X86;
+
+namespace JIT.HardwareIntrinsics.X86
+{
+    public static partial class Program
+    {
+        private static void SubtractScalarSingle()
+        {
+            var test = new SimpleBinaryOpTest__SubtractScalarSingle();
+
+            if (test.IsSupported)
+            {
+                // Validates basic functionality works
+                test.RunBasicScenario();
+
+                // Validates calling via reflection works
+                test.RunReflectionScenario();
+
+                // Validates passing a static member works
+                test.RunClsVarScenario();
+
+                // Validates passing a local works
+                test.RunLclVarScenario();
+
+                // Validates passing the field of a local works
+                test.RunLclFldScenario();
+
+                // Validates passing an instance member works
+                test.RunFldScenario();
+            }
+            else
+            {
+                // Validates we throw on unsupported hardware
+                test.RunUnsupportedScenario();
+            }
+
+            if (!test.Succeeded)
+            {
+                throw new Exception("One or more scenarios did not complete as expected.");
+            }
+        }
+    }
+
+    public sealed unsafe class SimpleBinaryOpTest__SubtractScalarSingle
+    {
+        private const int VectorSize = 16;
+        private const int ElementCount = VectorSize / sizeof(Single);
+
+        private static Single[] _data1 = new Single[ElementCount];
+        private static Single[] _data2 = new Single[ElementCount];
+
+        private static Vector128<Single> _clsVar1;
+        private static Vector128<Single> _clsVar2;
+
+        private Vector128<Single> _fld1;
+        private Vector128<Single> _fld2;
+
+        private SimpleBinaryOpTest__DataTable<Single> _dataTable;
+
+        static SimpleBinaryOpTest__SubtractScalarSingle()
+        {
+            var random = new Random();
+
+            for (var i = 0; i < ElementCount; i++) { _data1[i] = (float)(random.NextDouble()); _data2[i] = (float)(random.NextDouble()); }
+            Unsafe.CopyBlockUnaligned(ref Unsafe.As<Vector128<Single>, byte>(ref _clsVar1), ref Unsafe.As<Single, byte>(ref _data2[0]), VectorSize);
+            Unsafe.CopyBlockUnaligned(ref Unsafe.As<Vector128<Single>, byte>(ref _clsVar2), ref Unsafe.As<Single, byte>(ref _data1[0]), VectorSize);
+        }
+
+        public SimpleBinaryOpTest__SubtractScalarSingle()
+        {
+            Succeeded = true;
+
+            var random = new Random();
+
+            for (var i = 0; i < ElementCount; i++) { _data1[i] = (float)(random.NextDouble()); _data2[i] = (float)(random.NextDouble()); }
+            Unsafe.CopyBlockUnaligned(ref Unsafe.As<Vector128<Single>, byte>(ref _fld1), ref Unsafe.As<Single, byte>(ref _data1[0]), VectorSize);
+            Unsafe.CopyBlockUnaligned(ref Unsafe.As<Vector128<Single>, byte>(ref _fld2), ref Unsafe.As<Single, byte>(ref _data2[0]), VectorSize);
+
+            for (var i = 0; i < ElementCount; i++) { _data1[i] = (float)(random.NextDouble()); _data2[i] = (float)(random.NextDouble()); }
+            _dataTable = new SimpleBinaryOpTest__DataTable<Single>(_data1, _data2, new Single[ElementCount]);
+        }
+
+        public bool IsSupported => Sse.IsSupported;
+
+        public bool Succeeded { get; set; }
+
+        public void RunBasicScenario()
+        {
+            var result = Sse.SubtractScalar(
+                Unsafe.Read<Vector128<Single>>(_dataTable.inArray1Ptr),
+                Unsafe.Read<Vector128<Single>>(_dataTable.inArray2Ptr)
+            );
+
+            Unsafe.Write(_dataTable.outArrayPtr, result);
+            ValidateResult(_dataTable.inArray1, _dataTable.inArray2, _dataTable.outArray);
+        }
+
+        public void RunReflectionScenario()
+        {
+            var result = typeof(Sse).GetMethod(nameof(Sse.SubtractScalar), new Type[] { typeof(Vector128<Single>), typeof(Vector128<Single>) })
+                                     .Invoke(null, new object[] {
+                                        Unsafe.Read<Vector128<Single>>(_dataTable.inArray1Ptr),
+                                        Unsafe.Read<Vector128<Single>>(_dataTable.inArray2Ptr)
+                                     });
+
+            Unsafe.Write(_dataTable.outArrayPtr, (Vector128<Single>)(result));
+            ValidateResult(_dataTable.inArray1, _dataTable.inArray2, _dataTable.outArray);
+        }
+
+        public void RunClsVarScenario()
+        {
+            var result = Sse.SubtractScalar(
+                _clsVar1,
+                _clsVar2
+            );
+
+            Unsafe.Write(_dataTable.outArrayPtr, result);
+            ValidateResult(_clsVar1, _clsVar2, _dataTable.outArray);
+        }
+
+        public void RunLclVarScenario()
+        {
+            var left = Unsafe.Read<Vector128<Single>>(_dataTable.inArray1Ptr);
+            var right = Unsafe.Read<Vector128<Single>>(_dataTable.inArray2Ptr);
+            var result = Sse.SubtractScalar(left, right);
+
+            Unsafe.Write(_dataTable.outArrayPtr, result);
+            ValidateResult(left, right, _dataTable.outArray);
+        }
+
+        public void RunLclFldScenario()
+        {
+            var test = new SimpleBinaryOpTest__SubtractScalarSingle();
+            var result = Sse.SubtractScalar(test._fld1, test._fld2);
+
+            Unsafe.Write(_dataTable.outArrayPtr, result);
+            ValidateResult(test._fld1, test._fld2, _dataTable.outArray);
+        }
+
+        public void RunFldScenario()
+        {
+            var result = Sse.SubtractScalar(_fld1, _fld2);
+
+            Unsafe.Write(_dataTable.outArrayPtr, result);
+            ValidateResult(_fld1, _fld2, _dataTable.outArray);
+        }
+
+        public void RunUnsupportedScenario()
+        {
+            Succeeded = false;
+
+            try
+            {
+                RunBasicScenario();
+            }
+            catch (PlatformNotSupportedException)
+            {
+                Succeeded = true;
+            }
+        }
+
+        private void ValidateResult(Vector128<Single> left, Vector128<Single> right, Single[] result, [CallerMemberName] string method = "")
+        {
+            Single[] inArray1 = new Single[ElementCount];
+            Single[] inArray2 = new Single[ElementCount];
+
+            Unsafe.Write(Unsafe.AsPointer(ref inArray1[0]), left);
+            Unsafe.Write(Unsafe.AsPointer(ref inArray2[0]), right);
+
+            ValidateResult(inArray1, inArray2, result, method);
+        }
+
+        private void ValidateResult(Single[] left, Single[] right, Single[] result, [CallerMemberName] string method = "")
+        {
+            if (BitConverter.SingleToInt32Bits(left[0] - right[0]) != BitConverter.SingleToInt32Bits(result[0]))
+            {
+                Succeeded = false;
+            }
+            else
+            {
+                for (var i = 1; i < left.Length; i++)
+                {
+                    if (BitConverter.SingleToInt32Bits(left[i]) != BitConverter.SingleToInt32Bits(result[i]))
+                    {
+                        Succeeded = false;
+                        break;
+                    }
+                }
+            }
+
+            if (!Succeeded)
+            {
+                Console.WriteLine($"{nameof(Sse)}.{nameof(Sse.SubtractScalar)}<Single>: {method} failed:");
+                Console.WriteLine($"    left: ({string.Join(", ", left)})");
+                Console.WriteLine($"   right: ({string.Join(", ", right)})");
+                Console.WriteLine($"  result: ({string.Join(", ", result)})");
+                Console.WriteLine();
+            }
+        }
+    }
+}