ref: c679d867ba0e7d6c4ebbd82649d0eed8a4fe0c2a dir: /tests/execute/0018-structptr.c/
int main() { struct S { int x; int y; } s; struct S *p; p = &s; s.x = 1; p->y = 2; return p->y + p->x - 3; }