[Bug tree-optimization/67681] Missed vectorization: induction variable used after loop

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67681

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
The outer loop also has multiple exits.  The testcase is incomplete (FOO is
undefined).