https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121230
Alexander Monakov <amonakov at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |amonakov at gcc dot gnu.org --- Comment #4 from Alexander Monakov <amonakov at gcc dot gnu.org> --- SLP makes different decisions, with -m3dnow it vectorizes the final pair of stores, with -mno-3dnow it gives up saying "no grouped stores in basic block".