[Bug tree-optimization/19130] New: DSE not working?

["kazu at cs dot umass dot edu" <gcc-bugzilla at gcc dot gnu dot org>]

Consider:

int y;

void
foo (void)
{
  y = 0;
  y = 1;
}

I get:

foo ()
{
<bb 0>:
  y = 0;
  y = 1;
  return;

}

-- 
           Summary: DSE not working?
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Keywords: missed-optimization
          Severity: normal
          Priority: P2
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: kazu at cs dot umass dot edu
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19130