[Bug middle-end/106947] New: -Waddress + bool + pragma generates meaningless diagnostic

[eggert at cs dot ucla.edu via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106947

            Bug ID: 106947
           Summary: -Waddress + bool + pragma generates meaningless
                    diagnostic
           Product: gcc
           Version: 12.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: eggert at cs dot ucla.edu
  Target Milestone: ---

I found this while testing Gnulib with gcc (GCC) 12.1.1 20220507 (Red Hat
12.1.1-1) on x86-64.

Compile the following with "gcc -Waddress -S t.c":

#pragma GCC diagnostic ignored "-Waddress"
int s;
_Bool e = &s;
int
main ()
{
  int error = 0;
  {
    _Bool e1 = &s;
    if (!e1)
      error = 1;
  }
  return error;
}

The output is the meaningless diagnostic:

t.c: In function ‘main’:
t.c:2:5: note: ‘s’ declared here
    2 | int s;
      |     ^