[Bug middle-end/36369] [4.3/4.4 Regression] may_alias broken with previous uses of non attributed type in some cases

["pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #5 from pinskia at gcc dot gnu dot org  2008-05-29 13:58 -------
I was wrong about being C++ specific as here is a testcase which fails with
both front-ends:
struct g{long a;};
unsigned long f(struct g *a) { return *(unsigned long *)&a->a;}

struct A
{
  void *a;
};

int f1(const struct A *x, long *y)
{
  typedef long __attribute__ ((may_alias)) long_a;
  *y = *(const long_a *) (&x->a);
  return 1;
}


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|c++                         |middle-end


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36369