modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/execute/pta-field-1.c (about)

     1  struct Foo {
     2    int *p;
     3    int *q;
     4  };
     5  
     6  void __attribute__((noinline))
     7  bar (int **x)
     8  {
     9    struct Foo *f = (struct Foo *)x;
    10    *(f->q) = 0;
    11  }
    12  
    13  int foo(void)
    14  {
    15    struct Foo f;
    16    int i = 1, j = 2;
    17    f.p = &i;
    18    f.q = &j;
    19    bar(&f.p);
    20    return j;
    21  }
    22  
    23  extern void abort (void);
    24  int main()
    25  {
    26    if (foo () != 0)
    27      abort ();
    28    return 0;
    29  }