[Bug target/117926] [14/15 Regression] emits 3dnow (MMX) instruction from autovectorized GIMPLE without emms at -O2

[sjames at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117926

--- Comment #4 from Sam James <sjames at gcc dot gnu.org> ---
Alexander's testcase started with r15-882-g1d6199e5f8c1c0 (ran that just out of
curiosity while other machine was reducing) and indeed the FF one started with
r14-2786-gade30fad6669e5.