1  /* { dg-do compile } */
       2  /* { dg-options "-O2" } */
       3  /* { dg-options "-O2 -mabi=64" { target { mips*-*-linux* && mips64 } } } */
       4  
       5  struct offset_v1 {
       6      int k_uniqueness;
       7  };
       8  
       9  struct offset_v2 {
      10   long v;
      11  } __attribute__ ((__packed__));
      12  
      13  struct reiserfs_key {
      14      int k_objectid;
      15      union {
      16   struct offset_v1 k_offset_v1;
      17   struct offset_v2 k_offset_v2;
      18      } u;
      19  };
      20  
      21  struct item_head
      22  {
      23   struct reiserfs_key ih_key;
      24   int ih_version;
      25  };
      26  
      27  static void set_offset_v2_k_type(struct offset_v2 *v2)
      28  {
      29      v2->v &= 1;
      30  }
      31  
      32  static void set_le_key_k_type (int version, struct reiserfs_key * key)
      33  {
      34      version ? (key->u.k_offset_v1.k_uniqueness = 1)
      35  	    : set_offset_v2_k_type(&(key->u.k_offset_v2));
      36  }
      37  
      38  static void set_le_ih_k_type (struct item_head * ih)
      39  {
      40      set_le_key_k_type((__builtin_constant_p((ih)->ih_version) ? (ih)->ih_version : (ih)->ih_version), &(ih->ih_key));
      41  }
      42  
      43  void boo(struct item_head *ih, const char *body);
      44  
      45  void direct2indirect(void)
      46  {
      47      struct item_head *p_le_ih;
      48      struct item_head ind_ih;
      49      unsigned int unfm_ptr;
      50  
      51      if (__builtin_expect(32, 0)) __asm__ ("break");
      52  
      53      set_le_ih_k_type (&ind_ih);
      54  
      55      if (__builtin_constant_p(p_le_ih) ? 1 : 2) {
      56          (__builtin_constant_p(__builtin_constant_p(1) == 1));
      57        boo(&ind_ih, (char *)&unfm_ptr);
      58      }
      59  }