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0.4: Ported zstd v1.5.0, performance improvements
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,77 @@ | ||
| // Licensed to the .NET Foundation under one or more agreements. | ||
| // The .NET Foundation licenses this file to you under the MIT license. | ||
|
|
||
| #if !NETCOREAPP3_0_OR_GREATER | ||
|
|
||
| using InlineIL; | ||
| using static InlineIL.IL.Emit; | ||
|
|
||
| namespace System.Runtime.CompilerServices | ||
| { | ||
| public static unsafe class Unsafe | ||
| { | ||
| [MethodImpl(MethodImplOptions.AggressiveInlining)] | ||
| public static T As<T>(object o) | ||
| where T : struct | ||
| { | ||
| Ldarg(nameof(o)); | ||
| return IL.Return<T>(); | ||
| } | ||
|
|
||
| [MethodImpl(MethodImplOptions.AggressiveInlining)] | ||
| public static ref TTo As<TFrom, TTo>(ref TFrom source) | ||
| { | ||
| Ldarg(nameof(source)); | ||
| return ref IL.ReturnRef<TTo>(); | ||
| } | ||
|
|
||
| [MethodImpl(MethodImplOptions.AggressiveInlining)] | ||
| public static int SizeOf<T>() | ||
| { | ||
| Sizeof(typeof(T)); | ||
| return IL.Return<int>(); | ||
| } | ||
|
|
||
| [MethodImpl(MethodImplOptions.AggressiveInlining)] | ||
| public static ref T Add<T>(ref T source, int elementOffset) | ||
| { | ||
| Ldarg(nameof(source)); | ||
| Ldarg(nameof(elementOffset)); | ||
| Sizeof(typeof(T)); | ||
| Conv_I(); | ||
| Mul(); | ||
| IL.Emit.Add(); | ||
| return ref IL.ReturnRef<T>(); | ||
| } | ||
|
|
||
| [MethodImpl(MethodImplOptions.AggressiveInlining)] | ||
| public static void SkipInit<T>(out T value) | ||
| { | ||
| Ret(); | ||
| throw IL.Unreachable(); | ||
| } | ||
|
|
||
| [MethodImpl(MethodImplOptions.AggressiveInlining)] | ||
| public static ref T AsRef<T>(void* source) | ||
| { | ||
| // For .NET Core the roundtrip via a local is no longer needed | ||
| #if NETCOREAPP | ||
| IL.Push(source); | ||
| return ref IL.ReturnRef<T>(); | ||
| #else | ||
| // Roundtrip via a local to avoid type mismatch on return that the JIT inliner chokes on. | ||
| IL.DeclareLocals( | ||
| false, | ||
| new LocalVar("local", typeof(int).MakeByRefType()) | ||
| ); | ||
|
|
||
| IL.Push(source); | ||
| Stloc("local"); | ||
| Ldloc("local"); | ||
| return ref IL.ReturnRef<T>(); | ||
| #endif | ||
| } | ||
| } | ||
| } | ||
|
|
||
| #endif |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,54 @@ | ||
| // Licensed to the .NET Foundation under one or more agreements. | ||
| // The .NET Foundation licenses this file to you under the MIT license. | ||
|
|
||
| #if !NETCOREAPP3_0_OR_GREATER | ||
|
|
||
| using System.Runtime.CompilerServices; | ||
|
|
||
| namespace System.Runtime.Intrinsics | ||
| { | ||
| public static class Vector128 | ||
| { | ||
| internal const int Size = 16; | ||
|
|
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| public static unsafe Vector128<byte> Create(byte value) | ||
| { | ||
| byte* pResult = stackalloc byte[16] | ||
| { | ||
| value, | ||
| value, | ||
| value, | ||
| value, | ||
| value, | ||
| value, | ||
| value, | ||
| value, | ||
| value, | ||
| value, | ||
| value, | ||
| value, | ||
| value, | ||
| value, | ||
| value, | ||
| value, | ||
| }; | ||
|
|
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| return Unsafe.AsRef<Vector128<byte>>(pResult); | ||
| } | ||
|
|
||
| [MethodImpl(MethodImplOptions.AggressiveInlining)] | ||
| public static Vector128<U> As<T, U>(this Vector128<T> vector) | ||
| where T : struct | ||
| where U : struct => | ||
| Unsafe.As<Vector128<T>, Vector128<U>>(ref vector); | ||
|
|
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| public static T GetElement<T>(this Vector128<T> vector, int index) | ||
| where T : struct | ||
| { | ||
| ref T e0 = ref Unsafe.As<Vector128<T>, T>(ref vector); | ||
| return Unsafe.Add(ref e0, index); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| #endif |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| // Licensed to the .NET Foundation under one or more agreements. | ||
| // The .NET Foundation licenses this file to you under the MIT license. | ||
|
|
||
| #if !NETCOREAPP3_0_OR_GREATER | ||
|
|
||
| using System.Runtime.CompilerServices; | ||
| using System.Runtime.InteropServices; | ||
|
|
||
| namespace System.Runtime.Intrinsics | ||
| { | ||
| [StructLayout(LayoutKind.Sequential, Size = Vector128.Size)] | ||
| public readonly struct Vector128<T> : IEquatable<Vector128<T>> | ||
| where T : struct | ||
| { | ||
| private readonly ulong _00; | ||
| private readonly ulong _01; | ||
|
|
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| public static int Count => Vector128.Size / Unsafe.SizeOf<T>(); | ||
|
|
||
| [MethodImpl(MethodImplOptions.AggressiveInlining)] | ||
| public bool Equals(Vector128<T> other) | ||
| { | ||
| for (int i = 0; i < Count; i++) | ||
| { | ||
| if (!((IEquatable<T>)(this.GetElement(i))).Equals(other.GetElement(i))) | ||
| { | ||
| return false; | ||
| } | ||
| } | ||
|
|
||
| return true; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| #endif |
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