[Bug tree-optimization/23970] loop-invariant-motion is not doing it's work

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=23970
Bug 23970 depends on bug 23855, which changed state.

Bug 23855 Summary: loop header should also be pulled out of the inner loop too
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=23855

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED