[Bug tree-optimization/23094] store ccp, or store copy prop misses an optimization

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23094

--- Comment #15 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-07-06 
10:06:08 UTC ---
Testcase from PR53870:

int f(int *a, int *b)
{
  *a = *b;
  return *b;
}