| 
  
     ‘test_2’: events 1-2 
|    16 |   global_union.ptr_val = malloc (1024); /* { dg-message "allocated here" } */ |  
 |                          ^~~~~~~~~~~~~ |  
 |                          | |  
 |                          (1) allocated here |  
|    17 |   global_union.int_val = 0; /* { dg-warning "leak of 'global_union.ptr_val' " } */ |  
 |   ~~~~~~~~~~~~~~~~~~~~~~~~ |  
 |                        | |  
 |                        (2) ‘global_union.ptr_val’ leaks here; was allocated at (1) |  
 
 |