text: /* Test for MS bitfield layout */
  /* { dg-do run { target *-*-mingw* *-*-cygwin* i?86-*-* x86_64-*-* } } */
  
  extern void abort();
  
  struct s1_t {
      char a;
      char b __attribute__ ((aligned (16)));
  } __attribute__ ((ms_struct));
  struct s1_t s1;
  
  struct s2_t {
    char a;
    char b;
  } __attribute__ ((ms_struct));
  struct s2_t s2;
  
  struct s3_t {
    __extension__ char a : 6;
    char b __attribute__ ((aligned (16)));
  } __attribute__ ((ms_struct));
  struct s3_t s3;
  
  struct s4_t {
    __extension__ char a : 6;
    char b __attribute__ ((aligned (2)));
  } __attribute__ ((ms_struct));
  struct s4_t s4;
  
  struct s5_t {
    __extension__ char a : 6;
    char b __attribute__ ((aligned (1)));
  } __attribute__ ((ms_struct));
  struct s5_t s5;
  
  __extension__
  static __PTRDIFF_TYPE__ offs (const void *a, const void *b)
  {
    return (__PTRDIFF_TYPE__) ((const char*)a  - (const char*)b);
  }
  
  int main()
  {
    if (offs (&s1.b, &s1) != 16
        || offs (&s2.b, &s2) != 1
        || offs (&s3.b, &s3) != 16
        || offs (&s4.b, &s4) != 2
        || offs (&s5.b, &s5) != 1)
      abort ();
    return 0;
  }
  
  