Subversion Repositories openrisc

#include <stddef.h>

struct S {

  int i;

  int j;

};

struct R {

  int k;

  struct S a;

};

struct Q {

  float k;

  struct S a;

};

struct Q s;

int __attribute__((noinline,noclone))

test1 (void *q)

{

  struct S *b = (struct S *)((char *)q + sizeof (int));

  s.a.i = 0;

  b->i = 3;

  return s.a.i;

}

int __attribute__((noinline,noclone))

test2 (void *q)

{

  struct S *b = &((struct R *)q)->a;

  s.a.i = 0;

  b->i = 3;

  return s.a.i;

}

int __attribute__((noinline,noclone))

test3 (void *q)

{

  s.a.i = 0;

  ((struct S *)((char *)q + sizeof (int)))->i = 3;

  return s.a.i;

}

extern void abort (void);

int

main()

{

  if (sizeof (float) != sizeof (int)

      || offsetof (struct R, a) != sizeof (int)

      || offsetof (struct Q, a) != sizeof (int))

    return 0;

  s.a.i = 1;

  s.a.j = 2;

  if (test1 ((void *)&s) != 3)

    abort ();

  s.a.i = 1;

  s.a.j = 2;

  if (test2 ((void *)&s) != 3)

    abort ();

  s.a.i = 1;

  s.a.j = 2;

  if (test3 ((void *)&s) != 3)

    abort ();

  return 0;

}