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/* Verify that structure return doesn't invoke memcpy on

   overlapping objects.  */

extern void abort (void);

struct S {

  char stuff[1024];

};

union U {

  struct {

    int space;

    struct S s;

  } a;

  struct {

    struct S s;

    int space;

  } b;

};

struct S f(struct S *);

void g(union U *);

void main_test(void)

{

  union U u;

  u.b.s = f(&u.a.s);

  u.a.s = f(&u.b.s);

  g(&u);

}