[Bug tree-optimization/102006] A false warning "Array subscript -N is outside array bounds warning"

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102006

--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
It sounds like the usual upcasting of a link-only node which is strictly
non-conforming and can also result in TBAA issues but it's wide-spread.  Note I
didn't look into the source at all.