[Bug tree-optimization/86927] [8/9 Regression] Gcc miscompiles at -O3 on valid code

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86927

--- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> ---
Then it ends in Richi's revision r249553. Sounds like culprit.