@begin: scope:[]  from
  [0] phi()
  to:@1
@1: scope:[]  from @begin
  [1] phi()
  [2] call main 
  to:@end
@end: scope:[]  from @1
  [3] phi()
main: scope:[main]  from @1
  [4] phi()
  [5] call print 
  to:main::@1
main::@1: scope:[main]  from main
  [6] phi()
  [7] call print 
  to:main::@return
main::@return: scope:[main]  from main::@1
  [8] return 
  to:@return
print: scope:[print]  from main main::@1
  [9] (byte) idx#10 ← phi( main/(byte) 0 main::@1/(byte) idx#11 )
  [9] (byte*) print::m#2 ← phi( main/(const byte[]) msg1#0 main::@1/(const byte[]) msg2#0 )
  [10] *((const byte*) SCREEN#0 + (byte) idx#10) ← *((byte*) print::m#2 + (byte) 2)
  [11] (byte) idx#11 ← ++ (byte) idx#10
  to:print::@return
print::@return: scope:[print]  from print
  [12] return 
  to:@return
