Re: [C PATCH] Don't print -Waddress comparison warnings for macros (PR c/48778)

[Jeff Law]

On 03/01/2016 07:10 AM, Marek Polacek wrote:

This PR from 2011 reports that -Waddress prints unhelpful warning when the
comparison comes from a macro.  Since I've added from_macro_expansion_at,
this is easy to circumvent.  I'm not so sure we actually want to disable
the warning in the case of a macro, but probably yes.

Bootstrapped/regtested on x86_64-linux, ok for trunk or should I defer to
GCC 7?

2016-03-01  Marek Polacek  <pola...@redhat.com>

        PR c/48778
        * c-typeck.c (build_binary_op): Don't issue -Waddress warnings
        for macro expansions.

        * gcc.dg/Waddress-2.c: New test.

I think deferral is the best option here.

jeff