Well, all electronic computers all the way back to the Mark II have had unconditional branches (jumps) and conditional branches: I guess you're strictly correct

Well, all electronic computers all the way back to the Mark II have had unconditional branches (jumps) and conditional branches: I guess you're strictly correct that "while loops" aren't technically primitives, but conditional branches are and the only reason you'd ever use one is to perform the equivalent of an if or a while.