[Bug tree-optimization/127405] [14/15/16 Regression] wrong code at -O3 with a reverse loop over std::vector

[sjames at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127405

--- Comment #8 from Sam James <sjames at gcc dot gnu.org> ---
(In reply to zerocool_85 from comment #7)
> Thanks. It seems to be fixed in the trunk.
> Will it be automatically backported to older branches like 15.x / 16.x?

Not automatically, no. The bug remains open for backporting after some soaking
time on trunk though, at which point richi or someone else will test it and
apply it.