[Bug tree-optimization/85244] [6/7/8 Regression] Bad optimisation with flexible array member (may be related to -ftree-dominator-opts)

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85244

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Isn't non-NULL next fine in unions?