
void main()
main: scope:[main]  from
  [0] phi()
  to:main::repeat
main::repeat: scope:[main]  from main main::repeat
  [1] main::i#2 = phi( main/0, main::repeat/main::i#1 )
  [2] main::SCREEN[main::i#2] = '*'
  [3] main::i#1 = ++ main::i#2
  to:main::repeat
