1  /* PR tree-optimization/37573 */
       2  /* { dg-require-effective-target int32plus } */
       3  
       4  struct S
       5  {
       6    unsigned int *a;
       7    unsigned int b;
       8    unsigned int c[624];
       9  };
      10  
      11  static unsigned char __attribute__((noinline))
      12  foo (struct S *s)
      13  {
      14    unsigned int r;
      15    if (!--s->b)
      16      {
      17        unsigned int *c = s->c;
      18        unsigned int i;
      19        s->a = c;
      20        for (i = 0; i < 227; i++)
      21  	c[i] = ((((c[i] ^ c[i + 1]) & 0x7ffffffe) ^ c[i]) >> 1)
      22  	    ^ ((0 - (c[i + 1] & 1)) & 0x9908b0df) ^ c[i + 397];
      23      }
      24    r = *(s->a++);
      25    r ^= (r >> 11);
      26    r ^= ((r & 0xff3a58ad) << 7);
      27    r ^= ((r & 0xffffdf8c) << 15);
      28    r ^= (r >> 18);
      29    return (unsigned char) (r >> 1);
      30  }
      31  
      32  static void __attribute__((noinline))
      33  bar (unsigned char *p, unsigned int q, unsigned int r)
      34  {
      35    struct S s;
      36    unsigned int i;
      37    unsigned int *c = s.c;
      38    *c = r;
      39    for (i = 1; i < 624; i++)
      40      c[i] = i + 0x6c078965 * ((c[i - 1] >> 30) ^ c[i - 1]);
      41    s.b = 1;
      42    while (q--)
      43      *p++ ^= foo (&s);
      44  };
      45  
      46  static unsigned char p[23] = {
      47    0xc0, 0x49, 0x17, 0x32, 0x62, 0x1e, 0x2e, 0xd5, 0x4c, 0x19, 0x28, 0x49,
      48    0x91, 0xe4, 0x72, 0x83, 0x91, 0x3d, 0x93, 0x83, 0xb3, 0x61, 0x38
      49  };
      50  
      51  static unsigned char q[23] = {
      52    0x3e, 0x41, 0x55, 0x54, 0x4f, 0x49, 0x54, 0x20, 0x55, 0x4e, 0x49, 0x43,
      53    0x4f, 0x44, 0x45, 0x20, 0x53, 0x43, 0x52, 0x49, 0x50, 0x54, 0x3c
      54  };
      55  
      56  int
      57  main (void)
      58  {
      59    unsigned int s;
      60    s = 23;
      61    bar (p, s, s + 0xa25e);
      62    if (__builtin_memcmp (p, q, s) != 0)
      63      __builtin_abort ();
      64    return 0;
      65  }
      66