Replace HashHelpers.Combine with HashCode.Combine in netcoreapp projects

src/System.Drawing.Primitives/src/System.Drawing.Primitives.csproj

@@ -42,9 +42,6 @@
     <Compile Include="$(CommonPath)\System\Drawing\KnownColorTable.cs">
       <Link>System\Drawing\KnownColorTable.cs</Link>
     </Compile>
-    <Compile Include="$(CommonPath)\CoreLib\System\Numerics\Hashing\HashHelpers.cs">
-      <Link>Common\System\Numerics\Hashing\HashHelpers.cs</Link>
-    </Compile>
     <Compile Include="$(CommonPath)\System\Drawing\SystemColors.cs">
       <Link>System\Drawing\SystemColors.cs</Link>
     </Compile>

src/System.Drawing.Primitives/src/System/Drawing/Color.cs

@@ -3,7 +3,6 @@
 // See the LICENSE file in the project root for more information.
 
 using System.Diagnostics;
-using System.Numerics.Hashing;
 using System.Runtime.CompilerServices;
 
 namespace System.Drawing
@@ -580,8 +579,7 @@ public override int GetHashCode()
             if (name != null & !IsKnownColor)
                 return name.GetHashCode();
 
-            return HashHelpers.Combine(
-                HashHelpers.Combine(value.GetHashCode(), state.GetHashCode()), knownColor.GetHashCode());
+            return HashCode.Combine(value.GetHashCode(), state.GetHashCode(), knownColor.GetHashCode());
         }
     }
 }

src/System.Drawing.Primitives/src/System/Drawing/Point.cs

@@ -3,7 +3,6 @@
 // See the LICENSE file in the project root for more information.
 
 using System.ComponentModel;
-using System.Numerics.Hashing;
 
 namespace System.Drawing
 {

src/System.Drawing.Primitives/src/System/Drawing/PointF.cs

@@ -3,7 +3,6 @@
 // See the LICENSE file in the project root for more information.
 
 using System.ComponentModel;
-using System.Numerics.Hashing;
 
 namespace System.Drawing
 {

src/System.Drawing.Primitives/src/System/Drawing/Rectangle.cs

@@ -3,7 +3,6 @@
 // See the LICENSE file in the project root for more information.
 
 using System.ComponentModel;
-using System.Numerics.Hashing;
 
 namespace System.Drawing
 {

src/System.Drawing.Primitives/src/System/Drawing/RectangleF.cs

@@ -3,7 +3,6 @@
 // See the LICENSE file in the project root for more information.
 
 using System.ComponentModel;
-using System.Numerics.Hashing;
 
 namespace System.Drawing
 {

src/System.Drawing.Primitives/src/System/Drawing/Size.cs

@@ -3,7 +3,6 @@
 // See the LICENSE file in the project root for more information.
 
 using System.ComponentModel;
-using System.Numerics.Hashing;
 
 namespace System.Drawing
 {

src/System.Drawing.Primitives/src/System/Drawing/SizeF.cs

@@ -3,7 +3,6 @@
 // See the LICENSE file in the project root for more information.
 
 using System.ComponentModel;
-using System.Numerics.Hashing;
 
 namespace System.Drawing
 {

src/System.Memory/src/System.Memory.csproj

@@ -34,9 +34,6 @@
   </ItemGroup>
   <ItemGroup>
     <!-- Common or Common-branched source files -->
-    <Compile Include="$(CommonPath)\CoreLib\System\Numerics\Hashing\HashHelpers.cs">
-      <Link>Common\System\Collections\HashHelpers.cs</Link>
-    </Compile>
     <Compile Include="$(CommonPath)\System\Buffers\ArrayBufferWriter.cs">
       <Link>Common\System\Buffers\ArrayBufferWriter.cs</Link>
     </Compile>

src/System.Memory/src/System/SequencePosition.cs

@@ -2,7 +2,6 @@
 // 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.Numerics.Hashing;
 using System.ComponentModel;
 
 namespace System
@@ -52,6 +51,6 @@ public SequencePosition(object? @object, int integer)
 
         /// <inheritdoc />
         [EditorBrowsable(EditorBrowsableState.Never)]
-        public override int GetHashCode() => HashHelpers.Combine(_object?.GetHashCode() ?? 0, _integer);
+        public override int GetHashCode() => HashCode.Combine(_object?.GetHashCode() ?? 0, _integer);
     }
 }

src/System.Numerics.Vectors/src/System.Numerics.Vectors.csproj

@@ -11,9 +11,6 @@
   </PropertyGroup>
   <!-- Shared -->
   <ItemGroup>
-    <Compile Include="$(CommonPath)\CoreLib\System\Numerics\Hashing\HashHelpers.cs">
-      <Link>Common\System\Numerics\Hashing\HashHelpers.cs</Link>
-    </Compile>
     <Compile Include="$(CommonPath)\CoreLib\System\Runtime\CompilerServices\IntrinsicAttribute.cs">
       <Link>System\Runtime\CompilerServices\IntrinsicAttribute.cs</Link>
     </Compile>

src/System.Numerics.Vectors/src/System/Numerics/Vector2.cs

@@ -3,7 +3,6 @@
 // See the LICENSE file in the project root for more information.
 
 using System.Globalization;
-using System.Numerics.Hashing;
 using System.Runtime.CompilerServices;
 using System.Text;
 
@@ -54,9 +53,7 @@ public static Vector2 One
         /// <returns>The hash code.</returns>
         public override readonly int GetHashCode()
         {
-            int hash = this.X.GetHashCode();
-            hash = HashHelpers.Combine(hash, this.Y.GetHashCode());
-            return hash;
+            return HashCode.Combine(this.X.GetHashCode(), this.Y.GetHashCode());
         }
 
         /// <summary>

src/System.Numerics.Vectors/src/System/Numerics/Vector3.cs

@@ -3,7 +3,6 @@
 // See the LICENSE file in the project root for more information.
 
 using System.Globalization;
-using System.Numerics.Hashing;
 using System.Runtime.CompilerServices;
 using System.Text;
 
@@ -59,10 +58,7 @@ public static Vector3 One
         /// <returns>The hash code.</returns>
         public override readonly int GetHashCode()
         {
-            int hash = this.X.GetHashCode();
-            hash = HashHelpers.Combine(hash, this.Y.GetHashCode());
-            hash = HashHelpers.Combine(hash, this.Z.GetHashCode());
-            return hash;
+            return HashCode.Combine(this.X.GetHashCode(), this.Y.GetHashCode(), this.Z.GetHashCode());
         }
 
         /// <summary>

src/System.Numerics.Vectors/src/System/Numerics/Vector4.cs

@@ -3,7 +3,6 @@
 // See the LICENSE file in the project root for more information.
 
 using System.Globalization;
-using System.Numerics.Hashing;
 using System.Runtime.CompilerServices;
 using System.Text;
 
@@ -62,11 +61,7 @@ public static Vector4 One
         /// <returns>The hash code.</returns>
         public override readonly int GetHashCode()
         {
-            int hash = this.X.GetHashCode();
-            hash = HashHelpers.Combine(hash, this.Y.GetHashCode());
-            hash = HashHelpers.Combine(hash, this.Z.GetHashCode());
-            hash = HashHelpers.Combine(hash, this.W.GetHashCode());
-            return hash;
+            return HashCode.Combine(this.X.GetHashCode(), this.Y.GetHashCode(), this.Z.GetHashCode(), this.W.GetHashCode());
         }
 
         /// <summary>

src/System.Numerics.Vectors/tests/GenericVectorTests.cs

@@ -466,21 +466,9 @@ static GenericVectorTests()
         public void GetHashCodeDouble() { TestGetHashCode<double>(); }
         private void TestGetHashCode<T>() where T : struct
         {
-            T[] values1 = GenerateRandomValuesForVector<T>();
-            Vector<T> v1 = new Vector<T>(values1);
-            int hash = v1.GetHashCode();
-
-            int expected = 0;
-            for (int g = 0; g < Vector<T>.Count; g++)
-            {
-                unchecked
-                {
-                    uint shift5 = ((uint)expected << 5) | ((uint)expected >> 27);
-                    expected = ((int)shift5 + expected) ^ v1[g].GetHashCode();
-                }
-            }
-
-            Assert.Equal(expected, hash);
+            T[] values = GenerateRandomValuesForVector<T>();
+            Vector<T> v = new Vector<T>(values);
+            Assert.Equal(v.GetHashCode(), v.GetHashCode());
         }
 
         [Fact]

src/System.Numerics.Vectors/tests/GenericVectorTests.tt

@@ -328,21 +328,9 @@ namespace System.Numerics.Tests
 #>
         private void TestGetHashCode<T>() where T : struct
         {
-            T[] values1 = GenerateRandomValuesForVector<T>();
-            Vector<T> v1 = new Vector<T>(values1);
-            int hash = v1.GetHashCode();
-
-            int expected = 0;
-            for (int g = 0; g < Vector<T>.Count; g++)
-            {
-                unchecked
-                {
-                    uint shift5 = ((uint)expected << 5) | ((uint)expected >> 27);
-                    expected = ((int)shift5 + expected) ^ v1[g].GetHashCode();
-                }
-            }
-
-            Assert.Equal(expected, hash);
+            T[] values = GenerateRandomValuesForVector<T>();
+            Vector<T> v = new Vector<T>(values);
+            Assert.Equal(v.GetHashCode(), v.GetHashCode());
         }
 
 <#