1  /* { dg-do compile } */
       2  /* { dg-options "-O2" } */
       3  
       4  #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
       5  #define REV_ENDIANNESS __attribute__((scalar_storage_order("big-endian")))
       6  #else
       7  #define REV_ENDIANNESS __attribute__((scalar_storage_order("little-endian")))
       8  #endif
       9  
      10  struct X { int *p; } REV_ENDIANNESS;
      11  
      12  struct X x;
      13  
      14  struct X __attribute__((noinline)) foo (int *p)
      15  {
      16    struct X x;
      17    x.p = p;
      18    return x;
      19  }
      20  
      21  void __attribute((noinline)) bar (void)
      22  {
      23    *x.p = 1;
      24  }
      25  
      26  extern void abort (void);
      27  
      28  int main (void)
      29  {
      30    int i = 0;
      31    x = foo(&i);
      32    bar();
      33    if (i != 1)
      34      abort ();
      35    return 0;
      36  }