[Bug tree-optimization/95638] [10 Regression] Legit-looking code doesn't work with -O2

[amker at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95638

--- Comment #14 from bin cheng <amker at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #13)
> GCC 10.2 is released, adjusting target milestone.

Hmm, this should be fixed on GCC10/GCC9.  I backported PR95638/PR95804
separately using cherry-pick, so the backport information for latter PR is not
reflected here.