@begin: scope:[]  from
  [0] phi()
  to:@1
@1: scope:[]  from @begin
  [1] phi()
  [2] call main 
  to:@end
@end: scope:[]  from @1
  [3] phi()

(void()) main()
main: scope:[main]  from @1
  [4] phi()
  to:main::@1
main::@1: scope:[main]  from main main::@6
  [5] (byte) main::i#10 ← phi( main/(byte) 0 main::@6/(byte) main::i#1 )
  [6] if((byte) main::i#10==(byte) 1) goto main::@2
  to:main::@7
main::@7: scope:[main]  from main::@1
  [7] if((byte) main::i#10==(byte) 2) goto main::@3
  to:main::@8
main::@8: scope:[main]  from main::@7
  [8] if((byte) main::i#10==(byte) 3) goto main::@3
  to:main::@9
main::@9: scope:[main]  from main::@8
  [9] if((byte) main::i#10==(byte) 4) goto main::@4
  to:main::@5
main::@5: scope:[main]  from main::@9
  [10] *((const byte*) main::SCREEN + (byte) main::i#10) ← (byte) 'd'
  to:main::@6
main::@6: scope:[main]  from main::@2 main::@4 main::@5
  [11] (byte) main::i#1 ← ++ (byte) main::i#10
  [12] if((byte) main::i#1!=(byte) 6) goto main::@1
  to:main::@return
main::@return: scope:[main]  from main::@6
  [13] return 
  to:@return
main::@4: scope:[main]  from main::@3 main::@9
  [14] *((const byte*) main::SCREEN + (byte) main::i#10) ← (byte) '4'
  to:main::@6
main::@3: scope:[main]  from main::@7 main::@8
  [15] *((const byte*) main::SCREEN + (byte) main::i#10) ← (byte) '3'
  to:main::@4
main::@2: scope:[main]  from main::@1
  [16] *((const byte*) main::SCREEN + (byte) main::i#10) ← (byte) '1'
  to:main::@6
