modernc.org/cc@v1.0.1/testdata/gcc-6.3.0/gcc/testsuite/gcc.c-torture/execute/950511-1.c (about)

     1  main ()
     2  {
     3    unsigned long long xx;
     4    unsigned long long *x = (unsigned long long *) &xx;
     5  
     6    *x = -3;
     7    *x = *x * *x;
     8    if (*x != 9)
     9      abort ();
    10    exit (0);
    11  }