
void main()
main: scope:[main]  from
  [0] phi()
  [1] call memset
  to:main::@return
main::@return: scope:[main]  from main
  [2] return 
  to:@return

void memset(void *str)
memset: scope:[memset]  from main
  [3] *memset::dst#0 = 0
  to:memset::@return
memset::@return: scope:[memset]  from memset
  [4] return 
  to:@return
