ref: a004412434813b0500807d46d09c2d0cef13205d dir: /tests/cc/execute/0136-if.c/
int c; int main() { if(0) { return 1; } else if(0) { /* empty */ } else { if(1) { if(c) return 1; else return 0; } else { return 1; } } return 1; }