[Bug tree-optimization/63288] [5 Regression] gcc.c-torture/execute/20140326-1.c FAILs with -Og -fgcse -fif-conversion2

["bernd.edlinger at hotmail dot de" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63288

Bernd Edlinger <bernd.edlinger at hotmail dot de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bernd.edlinger at hotmail dot de

--- Comment #7 from Bernd Edlinger <bernd.edlinger at hotmail dot de> ---
I always wondered if it could be possible to have out-of
bounds accesses via the argument pointer too, that means
accessing an non-existent argument,
maybe a large var-arg, which is not given, like this

int f(int x, ...)
{
  if (x != 0)
  {
     va_list ap;
     va_start(ap, x);

     type z = va_arg(ap, type);
  }
}