[Bug tree-optimization/41101] [4.4/4.5 Regression] ICE in compute_antic, at tree-ssa-pre.c:2419

[rguenth at gcc dot gnu dot org]

------- Comment #9 from rguenth at gcc dot gnu dot org  2009-09-04 17:51 -------
Testcase from PR41263:

int func(int);

int bug(int* x, int* y, int N)
{
  int i;
  int* t;

  while (1)
  {
    for (i=1; i<=N; i++)
    {
      y[i] = func(x[i] - x[1]);
      if (y[i]) return i;
    }
    t=x; x=y; y=t;
  }
}


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41101