[Bug middle-end/68801] __builtin_object_size multiple objects ptr size issue when adding/removing printf()

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68801

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-12-09
          Component|c++                         |middle-end
     Ever confirmed|0                           |1
      Known to fail|                            |4.8.5, 4.9.3, 5.3.0, 6.0

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
without the printf()s the function is inlined and thus t2 = 1 is constant
propagated meaning that the address is forwarded which means results are
botched (for unanalyzed reason).