[Bug tree-optimization/77627] Unexpected void * dereference in uninit warning (and missed out-of-bounds warning)

[fw at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77627

--- Comment #1 from Florian Weimer <fw at gcc dot gnu.org> ---
Observed with the trunk from 2016-09-08.