ref: 3fc33c857e20a88b54d6c44b38d5eda753a98bfb dir: /tests/execute/0076-ptrsubasn.c/
int main() { int arr[2]; int *p; p = &arr[1]; p -= 1; *p = 123; if(arr[0] != 123) return 1; return 0; }