1 files changed, 80 insertions, 0 deletions
diff --git a/tests/src/JIT/HardwareIntrinsics/X86/Sse/LoadScalar.cs b/tests/src/JIT/HardwareIntrinsics/X86/Sse/LoadScalar.cs
new file mode 100644
index 0000000000..4e012541f7
--- /dev/null
+++ b/tests/src/JIT/HardwareIntrinsics/X86/Sse/LoadScalar.cs
@@ -0,0 +1,80 @@
+// 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, 3 }, new float[4]))
+                {
+                    var vf = Sse.LoadScalar((float*)(floatTable.inArrayPtr));
+                    Unsafe.Write(floatTable.outArrayPtr, vf);
+
+                    if (!floatTable.CheckResult((x, y) => BitConverter.SingleToInt32Bits(x[0]) == BitConverter.SingleToInt32Bits(y[0])
+                                                       && BitConverter.SingleToInt32Bits(y[1]) == 0
+                                                       && BitConverter.SingleToInt32Bits(y[2]) == 0
+                                                       && BitConverter.SingleToInt32Bits(y[3]) == 0))
+                    {
+                        Console.WriteLine("SSE LoadScalar 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();
+            }
+        }
+
+    }
+}