[Bug tree-optimization/38513] Only postreload will remove a no-op store

[pinskia at gcc dot gnu dot org]

------- Comment #7 from pinskia at gcc dot gnu dot org  2008-12-29 19:39 -------
One more testcase, we miss a sibcalling optimization due to this (this is
originally from PR 2100):
int i;
int g(void) __attribute__((pure));
int f()
{
  int t = i;
  int t1 = g();
  i = t;
  return t1;
}


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38513