@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#11 ← phi( main/(byte) 0 main::@1/(byte) idx#12 )
  [9] (byte) print::p_x#2 ← phi( main/(byte) 1 main::@1/(byte) 2 )
  [10] *((const byte*) SCREEN#0 + (byte) idx#11) ← (byte) print::p_x#2
  [11] (byte) idx#4 ← ++ (byte) idx#11
  [12] *((const byte*) SCREEN#0 + (byte) idx#4) ← (const byte) main::p1_y#1
  [13] (byte) idx#12 ← ++ (byte) idx#4
  to:print::@return
print::@return: scope:[print]  from print
  [14] return 
  to:@return
