[Bug rtl-optimization/61657] Undefined behavior in loop-iv.c

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61657

--- Comment #3 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
*** Bug 61944 has been marked as a duplicate of this bug. ***