| 
  
 test_4 
  | 
     ‘test_4’: events 1-2 
|    51 |   void *p = malloc(1024); /* { dg-message "\\(1\\) this call could return NULL" } */ |  
 |             ^~~~~~~~~~~~ |  
 |             | |  
 |             (1) this call could return NULL |  
|    52 |  |  
|    53 |   bar(p, q, r); /* { dg-warning "use of possibly-NULL 'p' where non-null expected" "warning" } */ |  
 |   ~~~~~~~~~~~~ |  
 |   | |  
 |   (2) argument 1 (‘p’) from (1) could be NULL where non-null expected |  
 
 |   
 |