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/* This testcase failed at -O2 on IA-64, because scheduling did not take

   into account conditional execution when using cselib for alias

   analysis.  */

struct D { int d1; struct D *d2; };

struct C { struct D c1; long c2, c3, c4, c5, c6; };

struct A { struct A *a1; struct C *a2; };

struct B { struct C b1; struct A *b2; };

extern void abort (void);

extern void exit (int);

void

foo (struct B *x, struct B *y)

{

  if (x->b2 == 0)

    {

      struct A *a;

      x->b2 = a = y->b2;

      y->b2 = 0;

      for (; a; a = a->a1)

        a->a2 = &x->b1;

    }

  if (y->b2 != 0)

    abort ();

  if (x->b1.c3 == -1)

    {

      x->b1.c3 = y->b1.c3;

      x->b1.c4 = y->b1.c4;

      y->b1.c3 = -1;

      y->b1.c4 = 0;

    }

  if (y->b1.c3 != -1)

    abort ();

}

struct B x, y;

int main ()

{

  y.b1.c1.d1 = 6;

  y.b1.c3 = 145;

  y.b1.c4 = 2448;

  x.b1.c3 = -1;

  foo (&x, &y);

  exit (0);

}