[Bug tree-optimization/37869] PTA results wrong for "non-pointer" variables

[rguenth at gcc dot gnu dot org]

------- Comment #1 from rguenth at gcc dot gnu dot org  2008-11-25 11:58 -------
Simpler testcase at -O

void
foo (unsigned long *start, unsigned long *end)
{
  unsigned long *temp = end - 1;

  while (end > start)
    *end-- = *temp--;
}

blocks alias-improvements branch (causes the store and load to be deleted).


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37869