[Bug tree-optimization/15784] fold misses binary optimization

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-06-02 21:26 -------
int f(int x)
{
  return -x - 9; // -9 - x
}

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15784