// 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.
 
namespace System
{
    internal static class HashHelpers
    {
        public static int Combine(int h1, int h2)
        {
            // RyuJIT optimizes this to use the ROL instruction
            // Related GitHub pull request: https://github.com/dotnet/coreclr/pull/1830
            var rol5 = (uint)h1 << 5 | (uint)h1 >> 27;
            return (int)rol5 + h1 ^ h2;
        }
    }
}