[Bug tree-optimization/68341] [6 Regression] FAIL: gcc.dg/graphite/interchange-{1,11,13}.c (internal compiler error)

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68341

--- Comment #3 from vries at gcc dot gnu.org ---
FTR, related comment at
https://gcc.gnu.org/ml/gcc-patches/2015-11/msg01792.html