[Bug middle-end/71311] [7 Regression] spec2006 test case 416.gamess fails since r235817

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71311

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Bah, needs ref input and -Ofast to reproduce.  Probably a latent issue
somewhere.