https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116708
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed| |2024-09-13 Status|UNCONFIRMED |NEW Ever confirmed|0 |1 --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- msse4 turns on sse4.1 and 4.2 While mno-sse4 turns off sse4.1 and sse4.2. That is msse4 is the same as msse4.2 while mno-sse4 is the same as mno-sse4.1. The documentation here should be better though.