CIRCLE WITH A DOT

@malwareminigun that said uops.info's test uses an aligned pointer in both cases so that kind of is the opposite of the interesting case

@malwareminigun llvm emits alignment-requiring sse movs even today, you can see this when it moves a 32-128 byte struct. i did say "was it ever" pretty specifically. i should have just checked uops.info because they have been the same since around nehalem, where before movups was up to four times slower

@fay59 @regehr i really want to know what the story is with the x86 sse ops that allow vs disallow unaligned access. like why! was the aligned one ever faster? it *is* true that an unaligned access might cross two cache lines and *that* would be gross, but...

@rygorous oh this is a super neat post, thanks for sharing

@whitequark lmao