
void main()
main: scope:[main]  from
  [0] phi()
  to:main::@1
main::@1: scope:[main]  from main main::@3
  [1] main::c#3 = phi( main/0, main::@3/main::c#1 )
  [2] if(main::c#3<$64) goto main::@2
  to:main::@return
main::@return: scope:[main]  from main::@1
  [3] return 
  to:@return
main::@2: scope:[main]  from main::@1
  [4] main::screen[main::c#3] = '*'
  [5] main::$1 = main::c#3 & 4
  [6] if(main::$1!=0) goto main::@3
  to:main::@4
main::@4: scope:[main]  from main::@2
  [7] main::c#2 = main::c#3 + 5
  to:main::@3
main::@3: scope:[main]  from main::@2 main::@4
  [8] main::c#5 = phi( main::@2/main::c#3, main::@4/main::c#2 )
  [9] main::c#1 = ++ main::c#5
  to:main::@1
