I'm unconvinced by the need for intrinsics in many cases (other than possibly for prefetch). I took out those out of the final version of [1] and got code that

I'm unconvinced by the need for intrinsics in many cases (other than possibly for prefetch). I took out those out of the final version of [1] and got code that actually ran faster on a contemporary processor, targeting the same old SIMD. 1. https://github.com/flame/how-to-optimize-gemm/tree/master/src https://github.com/flame/how-to-optimize-gemm/tree/master/sr...