[Bug middle-end/68251] New: [6 Regression] sorry, unimplemented: reverse storage order for BLKmode

[Joost.VandeVondele at mat dot ethz.ch]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68251

            Bug ID: 68251
           Summary: [6 Regression] sorry, unimplemented: reverse storage
                    order for BLKmode
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: Joost.VandeVondele at mat dot ethz.ch
  Target Milestone: ---

Nightly build of CP2K failed with: sorry, unimplemented: reverse storage order
for BLKmode , between good r229944 and bad r229981

I'm reducing the testcase, but a single couple takes several minutes before the
error triggers, so it will take a while.