Replace Trailing Zeros

[olegmrzv]

    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    private int NumberOfTrailingZeros(int i) {
        switch (((uint)(i & -i) * 0x077CB531u) >> 27) {
            case 0: return 0;
            case 1: return 1;
            case 2: return 28;
            case 3: return 2;
            case 4: return 29;
            case 5: return 14;
            case 6: return 24;
            case 7: return 3;
            case 8: return 30;
            case 9: return 22;
            case 10: return 20;
            case 11: return 15;
            case 12: return 25;
            case 13: return 17;
            case 14: return 4;
            case 15: return 8;
            case 16: return 31;
            case 17: return 27;
            case 18: return 13;
            case 19: return 23;
            case 20: return 21;
            case 21: return 19;
            case 22: return 16;
            case 23: return 7;
            case 24: return 26;
            case 25: return 12;
            case 26: return 18;
            case 27: return 6;
            case 28: return 11;
            case 29: return 5;
            case 30: return 10;
            case 31: return 9;
        }
        return 0;
    }