[Bug c++/86569] -Wnonnull-compare affects code generation

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86569

Martin Sebor <msebor at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2018-07-18
                 CC|                            |msebor at gcc dot gnu.org
           See Also|                            |https://gcc.gnu.org/bugzill
                   |                            |a/show_bug.cgi?id=86567
     Ever confirmed|0                           |1

--- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> ---
Confirmed.  See also bug 86567.

$ cat t.C && gcc -S -fcompare-debug=-Wnonnull-compare t.C

bool b;

int main ()
{
  return ((!b) != 0);
}
xg++: error: t.C: -fcompare-debug failure (length)