public unsafe Tuple <int, int> MinMaxSse()
{
var vmin = Vector128.Create(int.MaxValue);
var vmax = Vector128.Create(int.MinValue);
int vecSize = Vector128 <int> .Count;
fixed(int *pNumbers = numbers)
{
int i;
for (i = 0; i < numbers.Length; i += vecSize)
{
var d = Sse42.LoadVector128(pNumbers + i);
vmin = Sse42.Min(vmin, d);
vmax = Sse42.Max(vmax, d);
}
// tail is pretty much irrelevant
int tailLen = (numbers.Length % vecSize);
for (i = 0; i < tailLen; ++i)
{
var d = Sse42.LoadScalarVector128(pNumbers + numbers.Length - i - 1);
vmin = Sse42.Min(vmin, d);
vmax = Sse42.Max(vmax, d);
}
}
int min = int.MaxValue, max = int.MinValue;
for (int i = 0; i < vecSize; ++i)
{
min = Math.Min(min, vmin.GetElement(i));
max = Math.Max(max, vmax.GetElement(i));
}
return(new Tuple <int, int>(min, max));
}
