@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()
  [5] call inccnt 
  [6] (byte) inccnt::return#0 ← (byte) inccnt::return#2
  to:main::@1
main::@1: scope:[main]  from main
  [7] (byte~) main::$0 ← (byte) inccnt::return#0
  [8] *((const byte*) SCREEN) ← (byte~) main::$0
  [9] (byte) cnt#2 ← ++ (byte) cnt#12
  [10] call inccnt 
  [11] (byte) inccnt::return#1 ← (byte) inccnt::return#2
  to:main::@2
main::@2: scope:[main]  from main::@1
  [12] (byte~) main::$1 ← (byte) inccnt::return#1
  [13] *((const byte*) SCREEN+(byte) 1) ← (byte~) main::$1
  [14] *((const byte*) SCREEN+(byte) 2) ← (byte) cnt2#11
  [15] *((const byte*) SCREEN+(byte) 3) ← (byte) cnt3#11
  to:main::@return
main::@return: scope:[main]  from main::@2
  [16] return 
  to:@return

(byte()) inccnt()
inccnt: scope:[inccnt]  from main main::@1
  [17] (byte) cnt3#10 ← phi( main/(byte) 0 main::@1/(byte) cnt3#11 )
  [17] (byte) cnt2#10 ← phi( main/(byte) 0 main::@1/(byte) cnt2#11 )
  [17] (byte) cnt#11 ← phi( main/(byte) 0 main::@1/(byte) cnt#2 )
  [18] (byte) cnt#12 ← ++ (byte) cnt#11
  [19] (byte) cnt2#11 ← ++ (byte) cnt2#10
  [20] (byte) cnt3#11 ← ++ (byte) cnt3#10
  [21] (byte) inccnt::return#2 ← (byte) cnt#12
  to:inccnt::@return
inccnt::@return: scope:[inccnt]  from inccnt
  [22] return 
  to:@return
