Anyone have a suggestion for what SIMD instructions are best for this on an AVX chip?
I've got two 4-element vectors, A and B,of packed doubles.
For corresponding elements of A and B, I want to know whether or not A[i] is numerically less than B[i].
But then, I want to know if any of those four comparisons had an answer of "true". So essentially I want to to a logical "and" across the register containing the results of those four comparisons. Is there an efficient way to do this?