What makes you say that? I've seen several cases where an over-usage of branchless programming actually slowed things down. Especially once you get past 2 nested conditionals (so 4+ pathways) you do just end up executing a lot of ultimately-unused code. In fact this has been going the other direction, in some ways, for a little while now: people overestimate how much branches cost, particularly small, local, and easy-to-predict ones.