Workaround dotnet/runtime#52959

jkotas · May 19, 2021 · ccc58e5 · ccc58e5
1 parent 2aea56a
commit ccc58e5
Showing 1 changed file with 15 additions and 2 deletions.
diff --git a/src/libraries/System.Private.CoreLib/src/System/Runtime/Intrinsics/Vector128.cs b/src/libraries/System.Private.CoreLib/src/System/Runtime/Intrinsics/Vector128.cs
@@ -178,15 +178,28 @@ public static Vector128<ulong> AsUInt64<T>(this Vector128<T> vector)
         /// <returns><paramref name="value" /> reinterpreted as a new <see cref="Vector128{Single}" />.</returns>
         public static Vector128<float> AsVector128(this Vector2 value)
         {
-            return new Vector4(value, 0.0f, 0.0f).AsVector128();
+            // return new Vector4(value, 0.0f, 0.0f).AsVector128();
+
+            // Workaround https://github.com/dotnet/runtime/issues/52959
+            Vector4 value4 = default;
+            value4.X = value.X;
+            value4.Y = value.Y;
+            return Unsafe.As<Vector4, Vector128<float>>(ref value4);
         }
 
         /// <summary>Reinterprets a <see cref="Vector3" /> as a new <see cref="Vector128{Single}" />.</summary>
         /// <param name="value">The vector to reinterpret.</param>
         /// <returns><paramref name="value" /> reinterpreted as a new <see cref="Vector128{Single}" />.</returns>
         public static Vector128<float> AsVector128(this Vector3 value)
         {
-            return new Vector4(value, 0.0f).AsVector128();
+            // return new Vector4(value, 0.0f).AsVector128();
+
+            // Workaround https://github.com/dotnet/runtime/issues/52959
+            Vector4 value4 = default;
+            value4.X = value.X;
+            value4.Y = value.Y;
+            value4.Z = value.Z;
+            return Unsafe.As<Vector4, Vector128<float>>(ref value4);
         }
 
         /// <summary>Reinterprets a <see cref="Vector4" /> as a new <see cref="Vector128{Single}" />.</summary>