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

[qrzhang at gatech dot edu]

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

--- Comment #9 from Qirun Zhang <qrzhang at gatech dot edu> ---
(In reply to Richard Biener from comment #8)
> Patch posted here: https://gcc.gnu.org/ml/gcc-patches/2019-03/msg01192.html
> 
> Some of your bugs might turn out as duplicates if they are fixed by that
> patch.

Thanks, Richard. When will the patch be landed? It helps a lot to reduce
duplicates.