[Bug tree-optimization/21734] [4.1 regression] ICE: -ftree-vectorize, segfault

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-05-24 14:21 -------
Here is a C testcase:
struct a
{
  int aa[4];
};
struct b
{
  struct a aa;
};

void foo(struct b *bb)
{
  int i;
  for (i=0; i<4; ++i)
    {
      struct a *aa = &bb->aa;
      struct a *aa1 = aa;
      struct a *aa2 = aa1;
      int *d = &aa2->aa[i];
      *d = 0;
    }
}

I think this is caused by the forwprop changes.  (Notice the extra variables to reproduce this bug).

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |law at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21734