[Bug sanitizer/98609] sanitizer diagnoses VLAs with length zero although zero-length arrays are a GNU extension

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98609

--- Comment #7 from Martin Liška <marxin at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #6)
> That is not really possible, as the compiler assumes for
> -fno-sanitize-recover=vla

which is not the default value/

> that when we call the library routine, it never
> returns (it is noreturn).

Then it can be allowed only for recover UBSAN entry points.