[Bug tree-optimization/68453] [6 Regression] graphite ICE: segfault

[Joost.VandeVondele at mat dot ethz.ch]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68453

--- Comment #3 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> ---
at r230923 this testcase seems not to fail anymore. Should this be closed as
fixed (maybe after adding the testcase ?)

I ran into a new ICE however, but I'll open a PR once  I have this reduced.