modernc.org/cc@v1.0.1/testdata/gcc-6.3.0/gcc/testsuite/gcc.c-torture/compile/930603-1.c (about)

     1  union u { union u *a; double d; };
     2  union u *s, g();
     3  
     4  f()
     5  {
     6    union u x = g();
     7  
     8    s[0] = *x.a;
     9    s[1] = g();
    10  }