Add SearchValues<char> implementation for two sets of 128 chars (#103216)

Author: MihaZupan

src/libraries/System.Memory/tests/Span/SearchValues.cs

@@ -82,6 +82,7 @@ public static IEnumerable<object[]> Values_MemberData()
             {
                 yield return Pair(value);
                 yield return Pair('a' + value);
+                yield return Pair('\uFF00' + value);
 
                 // Test some more duplicates
                 if (value.Length > 0)

src/libraries/System.Private.CoreLib/src/System.Private.CoreLib.Shared.projitems

@@ -441,6 +441,7 @@
     <Compile Include="$(MSBuildThisFileDirectory)System\SearchValues\Any1SearchValues.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)System\SearchValues\Any2SearchValues.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)System\SearchValues\Any3SearchValues.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)System\SearchValues\AsciiWithSecondSetCharSearchValues.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)System\SearchValues\BitVector256.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)System\SearchValues\ProbabilisticMapState.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)System\SearchValues\ProbabilisticWithAsciiCharSearchValues.cs" />

src/libraries/System.Private.CoreLib/src/System/SearchValues/AsciiWithSecondSetCharSearchValues.cs

@@ -0,0 +1,75 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+using System.Runtime.Intrinsics.Arm;
+using System.Runtime.Intrinsics.Wasm;
+using System.Runtime.Intrinsics.X86;
+
+namespace System.Buffers
+{
+    internal sealed class AsciiWithSecondSetCharSearchValues<TOptimizations> : SearchValues<char>
+        where TOptimizations : struct, IndexOfAnyAsciiSearcher.IOptimizations
+    {
+        private IndexOfAnyAsciiSearcher.AsciiWithSecondSetState _state;
+
+        public AsciiWithSecondSetCharSearchValues(IndexOfAnyAsciiSearcher.AsciiWithSecondSetState state) =>
+            _state = state;
+
+        internal override char[] GetValues() =>
+            _state.Lookup.GetValues();
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        internal override bool ContainsCore(char value) =>
+            _state.Lookup.FastContains(value);
+
+        [CompExactlyDependsOn(typeof(Ssse3))]
+        [CompExactlyDependsOn(typeof(AdvSimd))]
+        [CompExactlyDependsOn(typeof(PackedSimd))]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        internal override int IndexOfAny(ReadOnlySpan<char> span) =>
+            IndexOfAnyAsciiSearcher.IndexOfAny<IndexOfAnyAsciiSearcher.DontNegate, TOptimizations>(
+                ref Unsafe.As<char, short>(ref MemoryMarshal.GetReference(span)), span.Length, ref _state);
+
+        [CompExactlyDependsOn(typeof(Ssse3))]
+        [CompExactlyDependsOn(typeof(AdvSimd))]
+        [CompExactlyDependsOn(typeof(PackedSimd))]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        internal override int IndexOfAnyExcept(ReadOnlySpan<char> span) =>
+            IndexOfAnyAsciiSearcher.IndexOfAny<IndexOfAnyAsciiSearcher.Negate, TOptimizations>(
+                ref Unsafe.As<char, short>(ref MemoryMarshal.GetReference(span)), span.Length, ref _state);
+
+        [CompExactlyDependsOn(typeof(Ssse3))]
+        [CompExactlyDependsOn(typeof(AdvSimd))]
+        [CompExactlyDependsOn(typeof(PackedSimd))]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        internal override int LastIndexOfAny(ReadOnlySpan<char> span) =>
+            IndexOfAnyAsciiSearcher.LastIndexOfAny<IndexOfAnyAsciiSearcher.DontNegate, TOptimizations>(
+                ref Unsafe.As<char, short>(ref MemoryMarshal.GetReference(span)), span.Length, ref _state);
+
+        [CompExactlyDependsOn(typeof(Ssse3))]
+        [CompExactlyDependsOn(typeof(AdvSimd))]
+        [CompExactlyDependsOn(typeof(PackedSimd))]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        internal override int LastIndexOfAnyExcept(ReadOnlySpan<char> span) =>
+            IndexOfAnyAsciiSearcher.LastIndexOfAny<IndexOfAnyAsciiSearcher.Negate, TOptimizations>(
+                ref Unsafe.As<char, short>(ref MemoryMarshal.GetReference(span)), span.Length, ref _state);
+
+        [CompExactlyDependsOn(typeof(Ssse3))]
+        [CompExactlyDependsOn(typeof(AdvSimd))]
+        [CompExactlyDependsOn(typeof(PackedSimd))]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        internal override bool ContainsAny(ReadOnlySpan<char> span) =>
+            IndexOfAnyAsciiSearcher.ContainsAny<IndexOfAnyAsciiSearcher.DontNegate, TOptimizations>(
+                ref Unsafe.As<char, short>(ref MemoryMarshal.GetReference(span)), span.Length, ref _state);
+
+        [CompExactlyDependsOn(typeof(Ssse3))]
+        [CompExactlyDependsOn(typeof(AdvSimd))]
+        [CompExactlyDependsOn(typeof(PackedSimd))]
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        internal override bool ContainsAnyExcept(ReadOnlySpan<char> span) =>
+            IndexOfAnyAsciiSearcher.ContainsAny<IndexOfAnyAsciiSearcher.Negate, TOptimizations>(
+                ref Unsafe.As<char, short>(ref MemoryMarshal.GetReference(span)), span.Length, ref _state);
+    }
+}