[Bug tree-optimization/21488] [4.0/4.1 regression] Not copy propagating single-argument PHIs causes out-of-ssa coalescing failure

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-05-10 
20:33 -------
Anyways here is a testcase which should not produce a constant after the loop:
int bar (unsigned int);

unsigned int
foo (void)
{
  unsigned int i, j;

  for (i = 1; i < 30; i++)
    {
      j = 2 + 3*i;
      if (bar (j))
        break;
    }
  return j;
}

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21488