But that is part of the issue with x86. Steadily, the dense instructions of x86 have been neglected and become less performant. A perfect example of this is "re

But that is part of the issue with x86. Steadily, the dense instructions of x86 have been neglected and become less performant. A perfect example of this is "rep movsb": up until I think a decade ago, Intel actually recommended against its use in their optimization manuals.