[Bug target/121230] x86: Inefficient code generation with -m3dnow -msse since GCC 12

[manx-bugzilla at problemloesungsmaschine dot de via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121230

--- Comment #3 from Jörn Heusipp <manx-bugzilla at problemloesungsmaschine dot 
de> ---
(In reply to Jörn Heusipp from comment #2)
> (In reply to Richard Biener from comment #1)
> > Try -fexcess-precision=fast or -std=gnu11?
> 
> Both have no effect.

Well, both shift stack locations around, but neither avoids the pointless xmm0
roundtrip.