[Bug debug/89463] debug information for iteractor of an empty loop is gone (at -O3)

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89463

--- Comment #13 from Richard Biener <rguenth at gcc dot gnu.org> ---
*** Bug 89791 has been marked as a duplicate of this bug. ***