https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78509
--- Comment #14 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot
Uni-Bielefeld.DE> ---
> --- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
> I don't have a box with 3dnow, but the assembly for -m32 -O2 -m3dnow -mno-sse
> pr42549.c looks identical on x86_64-linux between gcc 6 and trunk.
> So, what exact options (implicit or explicit) you are using, what differences
> in assembly do you see on this test compared to 6.x and does it fail there
> too?
Since 20161201, I'm no longer seeing those failures. No idea what has
been wrong there.
Rainer