| 
  
     ‘test_2’: events 1-3 
|    13 |   void *p = malloc (1024); /* { dg-message "allocated here" } */ |  
 |             ^~~~~~~~~~~~~ |  
 |             | |  
 |             (1) allocated here |  
| [...] |  |  
|    17 |   free (p); |  
 |   ~~~~~~~~    |  
 |   | |  
 |   (2) first ‘free’ here |  
|    18 |   free (global_ptr); /* { dg-warning "double-'free' of 'p'" } */ |  
 |   ~~~~~~~~~~~~~~~~~ |  
 |   | |  
 |   (3) second ‘free’ here; first ‘free’ was at (2) |  
 
 |