Linus seems to consider rep mov still too slow for small copies: https://www.realworldtech.com/forum/?threadid=196054&curpostid=196611 https://www.realworldtec

Linus seems to consider rep mov still too slow for small copies: https://www.realworldtech.com/forum/?threadid=196054&curpostid=196611 https://www.realworldtech.com/forum/?threadid=196054&curpost... https://www.realworldtech.com/forum/?threadid=196054&curpostid=196616 https://www.realworldtech.com/forum/?threadid=196054&curpost... It seems to me that rep move is so bad that you want to avoid it, but trying to write a fast generic memcpy results in so much bloat to handle edge cases that rep move remains competitive in the generic case.