[Bug tree-optimization/109689] [14 Regression] ICE at -O1 with "-ftree-vectorize": in check_loop_closed_ssa_def, at tree-ssa-loop-manip.cc:645 since r14-301-gf2d6beb7a4ddf1

[hubicka at ucw dot cz via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109689

--- Comment #10 from Jan Hubicka <hubicka at ucw dot cz> ---
> > So perhaps simply:
> >   rewrite_into_loop_closed_ssa (NULL, 0);
> > in case we unlooped in loop closed ssa form (which is not that common).
> > Would that be acceptable?
> 
> Yes, we do that in other places as well.
OK, I will test the fix.

Thanks
Honza