[Bug sanitizer/63520] ICE: in get_biv_step, at loop-iv.c:824 with -fsanitize=undefined on ppc64

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63520

--- Comment #5 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #4)
> Created attachment 34023 [details]
> gcc5-pr63520.patch
> 
> Untested fix.  Though, I'm really curious why this doesn't fail already with
> GCC 4.9.

It does. r205684 is from Wed Dec 4 22:47:11 2013.