ref: 9693dff4e5f4bf7d6da68dd1a26f71f6d5550640 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; }