1  /* { dg-do compile { target alpha*-*-* ia64*-*-* i?86-*-* x86_64-*-* s390x-*-* } } */
       2  /* { dg-options "-O2 -Wno-shift-overflow" } */
       3  /* { dg-require-effective-target lp64 } */
       4  
       5  /* PR middle-end/40501 */
       6  
       7  /* This once failed due to the bswap pass missing to add the type
       8     casts of the signed argument and result to the proper unsigned
       9     types.  */
      10  
      11  typedef long int int64_t;
      12  
      13  int64_t
      14  swap64 (int64_t n)
      15  {
      16    return (((n & (((int64_t) 0xff) )) << 56) |
      17  	  ((n & (((int64_t) 0xff) << 8)) << 40) |
      18  	  ((n & (((int64_t) 0xff) << 16)) << 24) |
      19  	  ((n & (((int64_t) 0xff) << 24)) << 8) |
      20  	  ((n & (((int64_t) 0xff) << 32)) >> 8) |
      21  	  ((n & (((int64_t) 0xff) << 40)) >> 24) |
      22  	  ((n & (((int64_t) 0xff) << 48)) >> 40) |
      23  	  ((n & (((int64_t) 0xff) << 56)) >> 56));
      24  }