gcc/testsuite/gcc.c-torture/execute/bitfld-5.c

/* See http://gcc.gnu.org/ml/gcc/2009-06/msg00072.html.  */

extern void abort (void);

struct s
{
  unsigned long long a:2;
  unsigned long long b:40;
  unsigned long long c:22;
};

__attribute__ ((noinline)) void
g (unsigned long long a, unsigned long long b)
{
  asm ("");
  if (a != b)
    abort ();
}

__attribute__ ((noinline)) void
f (struct s s, unsigned long long b)
{
  asm ("");
  g (((unsigned long long) (s.b-8)) + 8, b);
}

int
main ()
{
  struct s s = {1, 10, 3};
  struct s t = {1, 2, 3};
  f (s, 10);
  f (t, 0x10000000002);
  return 0;
}