def vectorize_loop(self, stmt):
     
    candidate_names = set([])
    before_values = {}
    after_values = {}
    for (k, (before, after)) in stmt.merge.iteritems():
      t = before.type
      if t in self.vector_elt_types:
        candidate_names.add(k)
        before_values[k] = before
        after_values[k] = after
dataset/ETHPy150Open iskandr/parakeet/parakeet/transforms/vectorize.py/Vectorize.vectorize_loop/original