Add SoA raytracer as a CQ test for Intel hardware intrinsic

tests/src/JIT/Performance/CodeQuality/HWIntrinsic/X86/PacketTracer/Camera.cs

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+// 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.Runtime.Intrinsics.X86;
+using static System.Runtime.Intrinsics.X86.Avx;
+using System.Runtime.Intrinsics;
+internal class Camera
+{
+
+    public Camera(VectorPacket256 pos, VectorPacket256 forward, VectorPacket256 up, VectorPacket256 right) { Pos = pos; Forward = forward; Up = up; Right = right; }
+
+    public VectorPacket256 Pos;
+    public VectorPacket256 Forward;
+    public VectorPacket256 Up;
+    public VectorPacket256 Right;
+
+    public static Camera Create(VectorPacket256 pos, VectorPacket256 lookAt)
+    {
+        VectorPacket256 forward = (lookAt - pos).Normalize();
+        VectorPacket256 down = new VectorPacket256(SetAllVector256<float>(0), SetAllVector256<float>(-1), SetAllVector256<float>(0));
+        VectorPacket256 right = SetAllVector256<float>(1.5f) * VectorPacket256.CrossProduct(forward, down).Normalize();
+        VectorPacket256 up = SetAllVector256<float>(1.5f) * VectorPacket256.CrossProduct(forward, right).Normalize();
+
+        return new Camera(pos, forward, up, right);
+    }
+
+}
+

tests/src/JIT/Performance/CodeQuality/HWIntrinsic/X86/PacketTracer/Color.cs

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+// 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.Runtime.Intrinsics;
+using static System.Runtime.Intrinsics.X86.Avx;
+using System.Runtime.CompilerServices;
+
+internal struct Color
+{
+    public float R {get; private set;}
+    public float G {get; private set;}
+    public float B {get; private set;}
+
+    public static readonly Color Background = new Color(0, 0, 0);
+
+    public Color(float _r, float _g, float _b)
+    {
+        R = _r;
+        G = _g;
+        B = _b;
+    }
+}

tests/src/JIT/Performance/CodeQuality/HWIntrinsic/X86/PacketTracer/ColorPacket.cs

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+// 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 static System.Runtime.Intrinsics.X86.Avx;
+using System.Runtime.Intrinsics.X86;
+using System.Runtime.Intrinsics;
+
+using ColorPacket256 = VectorPacket256;
+
+internal static class ColorPacket256Helper
+{
+    public static Int32RGBPacket256 ConvertToIntRGB(this VectorPacket256 colors)
+    {
+        var one = SetAllVector256<float>(1.0f);
+        var max = SetAllVector256<float>(255.0f);
+
+        var rsMask = Compare(colors.Xs, one, FloatComparisonMode.GreaterThanOrderedNonSignaling);
+        var gsMask = Compare(colors.Ys, one, FloatComparisonMode.GreaterThanOrderedNonSignaling);
+        var bsMask = Compare(colors.Zs, one, FloatComparisonMode.GreaterThanOrderedNonSignaling);
+
+        var rs = BlendVariable(colors.Xs, one, rsMask);
+        var gs = BlendVariable(colors.Ys, one, gsMask);
+        var bs = BlendVariable(colors.Zs, one, bsMask);
+
+        var rsInt = ConvertToVector256Int32(Multiply(rs, max));
+        var gsInt = ConvertToVector256Int32(Multiply(gs, max));
+        var bsInt = ConvertToVector256Int32(Multiply(bs, max));
+
+        return new Int32RGBPacket256(rsInt, gsInt, bsInt);
+    }
+
+    public static ColorPacket256 Times(ColorPacket256 left, ColorPacket256 right)
+    {
+        return new VectorPacket256(Multiply(left.Xs, right.Xs), Multiply(left.Ys, right.Ys), Multiply(left.Zs, right.Zs));
+    }
+
+    public static ColorPacket256 BackgroundColor = new ColorPacket256(SetZeroVector256<float>());
+    public static ColorPacket256 DefaultColor = new ColorPacket256(SetZeroVector256<float>());
+}
+
+internal struct Int32RGBPacket256
+{
+    public Vector256<int> Rs;
+    public Vector256<int> Gs;
+    public Vector256<int> Bs;
+
+    public Int32RGBPacket256(Vector256<int> _rs, Vector256<int> _gs, Vector256<int>_bs)
+    {
+        Rs = _rs;
+        Gs = _gs;
+        Bs = _bs;
+    }
+}

tests/src/JIT/Performance/CodeQuality/HWIntrinsic/X86/PacketTracer/Intersections.cs

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+// 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 static System.Runtime.Intrinsics.X86.Avx;
+using static System.Runtime.Intrinsics.X86.Avx2;
+using System.Runtime.Intrinsics.X86;
+using System.Runtime.Intrinsics;
+using System.Runtime.CompilerServices;
+using System;
+
+internal struct Intersections
+{
+    public Vector256<float> Distances;
+    public Vector256<int> ThingIndeces;
+
+    public static readonly Vector256<float> NullDistance = SetAllVector256<float>(float.MaxValue);
+    public static readonly Vector256<int> NullIndex = SetAllVector256<int>(-1);
+
+    public Intersections(Vector256<float> dis, Vector256<int> things)
+    {
+        Distances = dis;
+        ThingIndeces = things;
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public bool AllNullIntersections()
+    {
+        return AllNullIntersections(Distances);
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public static bool AllNullIntersections(Vector256<float> dis)
+    {
+        var cmp = Compare(dis, NullDistance, FloatComparisonMode.EqualOrderedNonSignaling);
+        var zero = SetZeroVector256<int>();
+        var mask = Avx2.CompareEqual(zero, zero);
+        return TestC(cmp, StaticCast<int, float>(mask));
+    }
+
+
+}

tests/src/JIT/Performance/CodeQuality/HWIntrinsic/X86/PacketTracer/Light.cs

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+// 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.
+//
+
+internal class Light
+{
+    public Vector Pos;
+    public Color Color;
+
+    public Light(Vector pos, Color color) { Pos = pos; Color = color; }
+    public LightPacket256 ToPacket256() { return new LightPacket256(Pos, Color);}
+}

tests/src/JIT/Performance/CodeQuality/HWIntrinsic/X86/PacketTracer/LightPacket.cs

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+// 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.Runtime.CompilerServices;
+using ColorPacket256 = VectorPacket256;
+
+internal class LightPacket256
+{
+    public VectorPacket256 Positions;
+    public ColorPacket256 Colors;
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public LightPacket256(Vector pos, Color col)
+    {
+        Positions = new VectorPacket256(pos.X, pos.Y, pos.Z);
+        Colors = new ColorPacket256(col.R, col.G, col.B);
+    }
+}

tests/src/JIT/Performance/CodeQuality/HWIntrinsic/X86/PacketTracer/ObjectPacket.cs

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+// 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.Runtime.Intrinsics;
+
+internal abstract class ObjectPacket256
+{
+    public Surface Surface {get; private set;}
+    public abstract Vector256<float> Intersect(RayPacket256 rayPacket256);
+    public abstract VectorPacket256 Normals(VectorPacket256 pos);
+
+    public ObjectPacket256(Surface surface)
+    {
+        Surface = surface;
+    }
+}

tests/src/JIT/Performance/CodeQuality/HWIntrinsic/X86/PacketTracer/ObjectPool.cs

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+// 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.Collections.Generic;
+using System.Diagnostics;
+
+namespace System.Collections.Concurrent
+{
+    /// <summary>Provides a thread-safe object pool.</summary>
+    /// <typeparam name="T">Specifies the type of the elements stored in the pool.</typeparam>
+    [DebuggerDisplay("Count={Count}")]
+    [DebuggerTypeProxy(typeof(IProducerConsumerCollection_DebugView<>))]
+    public sealed class ObjectPool<T> : ProducerConsumerCollectionBase<T>
+    {
+        private readonly Func<T> _generator;
+
+        /// <summary>Initializes an instance of the ObjectPool class.</summary>
+        /// <param name="generator">The function used to create items when no items exist in the pool.</param>
+        public ObjectPool(Func<T> generator) : this(generator, new ConcurrentQueue<T>()) { }
+
+        /// <summary>Initializes an instance of the ObjectPool class.</summary>
+        /// <param name="generator">The function used to create items when no items exist in the pool.</param>
+        /// <param name="collection">The collection used to store the elements of the pool.</param>
+        public ObjectPool(Func<T> generator, IProducerConsumerCollection<T> collection)
+            : base(collection)
+        {
+            if (generator == null) throw new ArgumentNullException("generator");
+            _generator = generator;
+        }
+
+        /// <summary>Adds the provided item into the pool.</summary>
+        /// <param name="item">The item to be added.</param>
+        public void PutObject(T item) { base.TryAdd(item); }
+
+        /// <summary>Gets an item from the pool.</summary>
+        /// <returns>The removed or created item.</returns>
+        /// <remarks>If the pool is empty, a new item will be created and returned.</remarks>
+        public T GetObject()
+        {
+            T value;
+            return base.TryTake(out value) ? value : _generator();
+        }
+
+        /// <summary>Clears the object pool, returning all of the data that was in the pool.</summary>
+        /// <returns>An array containing all of the elements in the pool.</returns>
+        public T[] ToArrayAndClear()
+        {
+            var items = new List<T>();
+            T value;
+            while (base.TryTake(out value)) items.Add(value);
+            return items.ToArray();
+        }
+
+        protected override bool TryAdd(T item)
+        {
+            PutObject(item);
+            return true;
+        }
+
+        protected override bool TryTake(out T item)
+        {
+            item = GetObject();
+            return true;
+        }
+    }
+}