script_i_prepare.py

   1 from xform import *
   2 from dataflow import *
   3
   4 def apply(cfg):
   5     # Various algos below don't work with no explicit entry in CFG
   6     cfg_preheader(cfg)
   7
   8     # Also don't work with >1 entries
   9 #    remove_unreachable_entries(cfg)
  10
  11     number_postorder(cfg)
  12     remove_unreachable_nodes(cfg)
  13
  14     # Also don't work unless there's a single exit
  15     cfg_single_exit(cfg)
  16     number_postorder_from_exit(cfg)
  17     number_postorder(cfg)
  18     cfg_infloops_exit(cfg)
  19
  20     foreach_inst(cfg, sub_const_to_add)