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/* { dg-do compile } */

/* { dg-options "-O2 -fdump-tree-optimized" } */

union tree_node;

typedef union tree_node *tree;

enum tree_code

{

  ARRAY_TYPE,

  LAST_AND_UNUSED_TREE_CODE

};

struct tree_common

{

  enum tree_code code:8;

};

union tree_node

{

  struct tree_common common;

};

int

objects_must_conflict_p (t1, t2)

     tree t1, t2;

{

  if ((t1->common.code == ARRAY_TYPE) != (t2

                                          && t2->common.code == ARRAY_TYPE))

    return 11;

  return foo (t2 ? get_alias_set (t2) : 0);

}

/* There should be two assignments of variables to the value zero.  */

/* { dg-final { scan-tree-dump-times " = 0" 2 "optimized"} } */

/* { dg-final { cleanup-tree-dump "optimized" } } */