[Bug tree-optimization/125713] [14/15/16/17 Regression] wrong code at -O1 on x86_64-linux-gnu since r14-2709

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125713

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
-fno-ivopts fixes it, I don't see the obvious mistake though.