[Bug tree-optimization/56396] [4.8 Regression] memory corruption in cc1

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56396

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2013-02-19
                 CC|                            |jakub at gcc dot gnu.org
            Version|4.7.3                       |4.8.0
         AssignedTo|unassigned at gcc dot       |jakub at gcc dot gnu.org
                   |gnu.org                     |
   Target Milestone|---                         |4.8.0
     Ever Confirmed|0                           |1

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-02-19 19:02:17 UTC ---
Reduced testcase:
/* PR tree-optimization/56396 */
/* { dg-do compile } */
/* { dg-options "-O2 -fpic -g" } */

struct S { char *s; int z; };
struct T { int t; } *c, u;
void bar (int, const char *);

inline void *
foo (void *x, char *y, int z)
{
  struct S s;
  char b[256];
  s.s = b;
  s.z = __builtin___sprintf_chk (s.s, 1, __builtin_object_size (s.s, 2),
"Require");
  if (s.z < 0)
    bar (u.t | c->t, "rls");
  if (foo (x, s.s, s.z))
    {
    }
  return (void *) 0;
}