1 files changed, 119 insertions, 0 deletions
diff --git a/src/mscorlib/src/System/Runtime/Intrinsics/X86/Fma.cs b/src/mscorlib/src/System/Runtime/Intrinsics/X86/Fma.cs
new file mode 100644
index 0000000000..84160f293f
--- /dev/null
+++ b/src/mscorlib/src/System/Runtime/Intrinsics/X86/Fma.cs
@@ -0,0 +1,119 @@
+// 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.Intrinsics;
+
+namespace System.Runtime.Intrinsics.X86
+{
+    /// <summary>
+    /// This class provides access to Intel FMA hardware instructions via intrinsics
+    /// </summary>
+    public static class Fma
+    {
+        public static bool IsSupported { get { return false; } }
+
+        /// <summary>
+        /// __m128 _mm_fmadd_ps (__m128 a, __m128 b, __m128 c)
+        /// </summary>
+        public static Vector128<float> MultiplyAdd(Vector128<float> a, Vector128<float> b, Vector128<float> c) { throw new NotImplementedException(); }
+        /// <summary>
+        /// __m128d _mm_fmadd_pd (__m128d a, __m128d b, __m128d c)
+        /// </summary>
+        public static Vector128<double> MultiplyAdd(Vector128<double> a, Vector128<double> b, Vector128<double> c) { throw new NotImplementedException(); }
+        /// <summary>
+        /// __m256 _mm256_fmadd_ps (__m256 a, __m256 b, __m256 c)
+        /// </summary>
+        public static Vector256<float> MultiplyAdd(Vector256<float> a, Vector256<float> b, Vector256<float> c) { throw new NotImplementedException(); }
+        /// <summary>
+        /// __m256d _mm256_fmadd_pd (__m256d a, __m256d b, __m256d c)
+        /// </summary>
+        public static Vector256<double> MultiplyAdd(Vector256<double> a, Vector256<double> b, Vector256<double> c) { throw new NotImplementedException(); }
+
+        /// <summary>
+        /// __m128 _mm_fmaddsub_ps (__m128 a, __m128 b, __m128 c)
+        /// </summary>
+        public static Vector128<float> MultiplyAddSubtract(Vector128<float> a, Vector128<float> b, Vector128<float> c) { throw new NotImplementedException(); }
+        /// <summary>
+        /// __m128d _mm_fmaddsub_pd (__m128d a, __m128d b, __m128d c)
+        /// </summary>
+        public static Vector128<double> MultiplyAddSubtract(Vector128<double> a, Vector128<double> b, Vector128<double> c) { throw new NotImplementedException(); }
+        /// <summary>
+        /// __m256 _mm256_fmaddsub_ps (__m256 a, __m256 b, __m256 c)
+        /// </summary>
+        public static Vector256<float> MultiplyAddSubtract(Vector256<float> a, Vector256<float> b, Vector256<float> c) { throw new NotImplementedException(); }
+        /// <summary>
+        /// __m256d _mm256_fmaddsub_pd (__m256d a, __m256d b, __m256d c)
+        /// </summary>
+        public static Vector256<double> MultiplyAddSubtract(Vector256<double> a, Vector256<double> b, Vector256<double> c) { throw new NotImplementedException(); }
+
+        /// <summary>
+        /// __m128 _mm_fmsub_ps (__m128 a, __m128 b, __m128 c)
+        /// </summary>
+        public static Vector128<float> MultiplySubtract(Vector128<float> a, Vector128<float> b, Vector128<float> c) { throw new NotImplementedException(); }
+        /// <summary>
+        /// __m128d _mm_fmsub_pd (__m128d a, __m128d b, __m128d c)
+        /// </summary>
+        public static Vector128<double> MultiplySubtract(Vector128<double> a, Vector128<double> b, Vector128<double> c) { throw new NotImplementedException(); }
+        /// <summary>
+        /// __m256 _mm256_fmsub_ps (__m256 a, __m256 b, __m256 c)
+        /// </summary>
+        public static Vector256<float> MultiplySubtract(Vector256<float> a, Vector256<float> b, Vector256<float> c) { throw new NotImplementedException(); }
+        /// <summary>
+        /// __m256d _mm256_fmsub_pd (__m256d a, __m256d b, __m256d c)
+        /// </summary>
+        public static Vector256<double> MultiplySubtract(Vector256<double> a, Vector256<double> b, Vector256<double> c) { throw new NotImplementedException(); }
+
+        /// <summary>
+        /// __m128 _mm_fmsubadd_ps (__m128 a, __m128 b, __m128 c)
+        /// </summary>
+        public static Vector128<float> MultiplySubtractAdd(Vector128<float> a, Vector128<float> b, Vector128<float> c) { throw new NotImplementedException(); }
+        /// <summary>
+        /// __m128d _mm_fmsubadd_pd (__m128d a, __m128d b, __m128d c)
+        /// </summary>
+        public static Vector128<double> MultiplySubtractAdd(Vector128<double> a, Vector128<double> b, Vector128<double> c) { throw new NotImplementedException(); }
+        /// <summary>
+        /// __m256 _mm256_fmsubadd_ps (__m256 a, __m256 b, __m256 c)
+        /// </summary>
+        public static Vector256<float> MultiplySubtractAdd(Vector256<float> a, Vector256<float> b, Vector256<float> c) { throw new NotImplementedException(); }
+        /// <summary>
+        /// __m256d _mm256_fmsubadd_pd (__m256d a, __m256d b, __m256d c)
+        /// </summary>
+        public static Vector256<double> MultiplySubtractAdd(Vector256<double> a, Vector256<double> b, Vector256<double> c) { throw new NotImplementedException(); }
+
+        /// <summary>
+        /// __m128 _mm_fnmadd_ps (__m128 a, __m128 b, __m128 c)
+        /// </summary>
+        public static Vector128<float> MultiplyAddNegated(Vector128<float> a, Vector128<float> b, Vector128<float> c) { throw new NotImplementedException(); }
+        /// <summary>
+        /// __m128d _mm_fnmadd_pd (__m128d a, __m128d b, __m128d c)
+        /// </summary>
+        public static Vector128<double> MultiplyAddNegated(Vector128<double> a, Vector128<double> b, Vector128<double> c) { throw new NotImplementedException(); }
+        /// <summary>
+        /// __m256 _mm256_fnmadd_ps (__m256 a, __m256 b, __m256 c)
+        /// </summary>
+        public static Vector256<float> MultiplyAddNegated(Vector256<float> a, Vector256<float> b, Vector256<float> c) { throw new NotImplementedException(); }
+        /// <summary>
+        /// __m256d _mm256_fnmadd_pd (__m256d a, __m256d b, __m256d c)
+        /// </summary>
+        public static Vector256<double> MultiplyAddNegated(Vector256<double> a, Vector256<double> b, Vector256<double> c) { throw new NotImplementedException(); }
+
+        /// <summary>
+        /// __m128 _mm_fnmsub_ps (__m128 a, __m128 b, __m128 c)
+        /// </summary>
+        public static Vector128<float> MultiplySubtractNegated(Vector128<float> a, Vector128<float> b, Vector128<float> c) { throw new NotImplementedException(); }
+        /// <summary>
+        /// __m128d _mm_fnmsub_pd (__m128d a, __m128d b, __m128d c)
+        /// </summary>
+        public static Vector128<double> MultiplySubtractNegated(Vector128<double> a, Vector128<double> b, Vector128<double> c) { throw new NotImplementedException(); }
+        /// <summary>
+        /// __m256 _mm256_fnmsub_ps (__m256 a, __m256 b, __m256 c)
+        /// </summary>
+        public static Vector256<float> MultiplySubtractNegated(Vector256<float> a, Vector256<float> b, Vector256<float> c) { throw new NotImplementedException(); }
+        /// <summary>
+        /// __m256d _mm256_fnmsub_pd (__m256d a, __m256d b, __m256d c)
+        /// </summary>
+        public static Vector256<double> MultiplySubtractNegated(Vector256<double> a, Vector256<double> b, Vector256<double> c) { throw new NotImplementedException(); }
+    }
+}