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/* { dg-do run } */

/* { dg-options "-O2 -fipa-pta -fno-tree-fre -fno-tree-sra -fdump-ipa-pta-details" } */

struct X {

    int i;

    void *p;

};

static void * __attribute__((noinline,noclone))

foo(struct X *q, void *p)

{

  struct X b;

  b.p = p;

  *q = b;

  return q->p;

}

extern void abort (void);

int main()

{

  struct X a, c;

  void *p;

  a.p = (void *)&c;

  p = foo(&a, &a);

  /* { dg-final { scan-ipa-dump "foo.result = { NULL a\[^ \]* c\[^ \]* }" "pta" { xfail *-*-* } } } */

  /* { dg-final { scan-ipa-dump "foo.result = { NULL a\[^ \]* a\[^ \]* c\[^ \]* }" "pta" } } */

  ((struct X *)p)->p = (void *)0;

  if (a.p != (void *)0)

    abort ();

  return 0;

}

/* { dg-final { cleanup-ipa-dump "pta" } } */