[Bug tree-optimization/116481] [12/13/14/15 Regression] `arrays of functions are not meaningful` error message happens with -W -Wall -O2 even though there are no arrays of function types used

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116481

--- Comment #10 from Richard Sandiford <rsandifo at gcc dot gnu.org> ---
(In reply to Richard Sandiford from comment #9)
> If the tag bit is dropped by going
> out of bounds, that's a feature, not a bug, and would happen equally for
> void*/char* arithmetic as for (u)intptr_t arithmetic.
“out of bounds” here meaning “out of the representable bounds” of a capability
(as distinct from “out of the object's bounds”, which is checked at
dereference).