1  /* Verify that gimple-level NRV is occurring when values other than the
       2     return slot are call-clobbered.  */
       3  /* { dg-do compile } */
       4  /* { dg-options "-O -fdump-tree-optimized" } */
       5  
       6  typedef struct { int x[20]; void *y; } S;
       7  typedef struct { int a; S b; } T;
       8  S nrv_candidate (void);
       9  void use_result (S, int);
      10  int *ptr;
      11  void foo (void)
      12  {
      13    S result;
      14    T result_arr[10][5];
      15  
      16    int i;
      17  
      18    ptr = &i;
      19  
      20    /* i is call-clobbered for these calls, but result and result_arr
      21       aren't.  */
      22    result = nrv_candidate ();
      23    result_arr[3][4].b = nrv_candidate ();
      24  
      25    use_result (result, i);
      26    use_result (result_arr[3][4].b, i);
      27  }
      28  
      29  /* { dg-final { scan-tree-dump-times "return slot optimization" 2 "optimized" } } */