[Bug tree-optimization/88763] Better Output for Loop Unswitching

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88763

--- Comment #6 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Candidate patch for porting to the dump_* API:
  https://gcc.gnu.org/ml/gcc-patches/2019-01/msg00512.html