Not sure how much value there is in beating Swisstables in very particular cases like this. For specialized cases, one can beat Swisstables by more margin and l

Not sure how much value there is in beating Swisstables in very particular cases like this. For specialized cases, one can beat Swisstables by more margin and less effort by using more memory and decreasing load factor, thereby decreasing collisions. You don’t even need SIMD in that case since collisions are rare.