https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116708
--- Comment #3 from Alex Orange <alex.orange at utah dot edu> --- Thanks, the first two lines were exactly what I was looking for: "msse4 turns on sse4.1 and 4.2 While mno-sse4 turns off sse4.1 and sse4.2." Something along those lines is what I'd suggest adding to the documentation.
