
void main()
main: scope:[main]  from
  [0] phi()
  to:main::@1
main::@1: scope:[main]  from main main::@2
  [1] main::i#2 = phi( main/$64, main::@2/main::i#1 )
  [2] call nest 
  to:main::@2
main::@2: scope:[main]  from main::@1
  [3] main::i#1 = -- main::i#2
  [4] if(main::i#1>0) goto main::@1
  to:main::@return
main::@return: scope:[main]  from main::@2
  [5] return 
  to:@return

void nest()
nest: scope:[nest]  from main::@1
  [6] phi()
  to:nest::@1
nest::@1: scope:[nest]  from nest nest::@1
  [7] nest::j#2 = phi( nest/$64, nest::@1/nest::j#1 )
  [8] *SCREEN = nest::j#2
  [9] nest::j#1 = -- nest::j#2
  [10] if(nest::j#1>0) goto nest::@1
  to:nest::@return
nest::@return: scope:[nest]  from nest::@1
  [11] return 
  to:@return
