[Bug middle-end/86172] [meta-bug] issues with -Wnull-dereference

[egallager at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86172

--- Comment #5 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Segher Boessenkool from comment #4)
> At least some of what?  I don't follow.

The bugs that this one depends upon.

> _Is_ there anything that prevents us from enabling -Wnull-dereference at
> -Wextra or -Wall or even by default?

It was previously in -Wall, but it was removed from it in r226751 because it
broke bootstrap, see bug 16351 comment 35. 

> Does it have false positives?

Bug 71157 is a false positive.