[Bug tree-optimization/65307] [4.9 Regression] Incorrect optimization breaks basic arithmetic

[sezeroz at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65307

--- Comment #15 from Ozkan Sezer <sezeroz at gmail dot com> ---
(In reply to Richard Biener from comment #14)
> Fixed.

By which commit was this fixed?  Is the fix applicable to the now-closed
4.9 branch at all?