[Bug c/77328] incorrect caret location in -Wformat calling printf via a macro

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77328

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to fail|                            |7.3.0, 8.2.0, 9.0

--- Comment #3 from Martin Sebor <msebor at gcc dot gnu.org> ---
GCC 8 and 9 output for the test case is slightly different (underlining the
sprintf argument is a nice improvement) but still not what it should be:

pr77328.c: In function ‘f’:
pr77328.c:7:30: warning: format ‘%i’ expects argument of type ‘int’, but
argument 4 has type ‘double’ [-Wformat=]
   __builtin_sprintf (d, "%i %i", 1, 2.0);
                             ~^      ~~~
                             %f
pr77328.c:9:9: warning: format ‘%i’ expects argument of type ‘int’, but
argument 4 has type ‘double’ [-Wformat=]
   P (d, "%i %i", 1, 2.0);
         ^~~~~~~     ~~~
pr77328.c:5:45: note: in definition of macro ‘P’
 #define P(d, f, a, b) __builtin_sprintf (d, f, a, b)
                                             ^