modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/execute/930921-1.c (about)

     1  f (x)
     2       unsigned x;
     3  {
     4    return (unsigned) (((unsigned long long) x * 0xAAAAAAAB) >> 32) >> 1;
     5  }
     6  
     7  main ()
     8  {
     9    unsigned i;
    10  
    11    for (i = 0; i < 10000; i++)
    12      if (f (i) != i / 3)
    13        abort ();
    14    exit (0);
    15  }