[Bug tree-optimization/82363] [8 Regression] wrong code at -O1, -O2 and -O3 on x86_64-linux-gnu

[jamborm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82363

--- Comment #4 from Martin Jambor <jamborm at gcc dot gnu.org> ---
I have proposed a fix on the mailing list:
https://gcc.gnu.org/ml/gcc-patches/2017-10/msg00070.html