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/* { dg-do link } */

/* { dg-options "-O -fstrict-aliasing" } */

class first

{

public:

  double d;

  int f1;

};

class middle : public first

{

};

class second : public middle

{

public:

  int f2;

  short a;

};

class third

{

public:

  char a;

  char b;

};

class multi: public third, public second

{

public:

  short s;

  /* The following field used to be of type char but that causes

     class multi to effectively get alias-set zero which we end

     up not optimizing because of the fix for PR44164.  */

  int f3;

};

extern void link_error ();

void

foo (first *s1, second *s2)

{

  s1->f1 = 0;

  s2->f2 = 0;

  s1->f1++;

  s2->f2++;

  s1->f1++;

  s2->f2++;

  if (s1->f1 != 2)

    link_error ();

}

void

bar (first *s1, multi *s3)

{

  s1->f1 = 0;

  s3->f3 = 0;

  s1->f1++;

  s3->f3++;

  s1->f1++;

  s3->f3++;

  if (s1->f1 != 2)

    link_error ();

}

int

main()

{

  first a;

  second b;

  multi c;

  foo (&a, &b);

  bar (&a, &c);

  return 0;

}