
void main()
main: scope:[main]  from
  [0] phi()
  to:main::label1
main::label1: scope:[main]  from main
  [1] phi()
  to:main::label2
main::label2: scope:[main]  from main::label1
  [2] phi()
  to:main::@1
main::@1: scope:[main]  from main::label2 main::label4
  [3] main::i#2 = phi( main::label2/0, main::label4/main::i#1 )
  [4] if(main::i#2<$a) goto main::label3
  to:main::label5
main::label5: scope:[main]  from main::@1
  [5] *(main::SCREEN+$28) = '*'
  to:main::label6
main::label6: scope:[main]  from main::label5
  [6] phi()
  to:main::@return
main::@return: scope:[main]  from main::label6
  [7] return 
  to:@return
main::label3: scope:[main]  from main::@1
  [8] main::SCREEN[main::i#2] = main::i#2
  to:main::label4
main::label4: scope:[main]  from main::label3
  [9] main::i#1 = ++ main::i#2
  to:main::@1
