Bug path

‘test_2’: events 1-4
69void test_2 (void *ptr, int a, int b)
^~~~~~
|
(1) entry to ‘test_2’
70{
71 switch (a)
~~~~~~
|
(2) following ‘case 3:’ branch...
[...]
77 case 3:
~~~~
|
(3) ...to here
78 calls_free_2 (ptr);
~~~~~~~~~~~~~~~~~~
|
(4) calling ‘calls_free_2’ from ‘test_2’
‘calls_free_2’: events 5-6
64void calls_free_2 (void *ptr)
^~~~~~~~~~~~
|
(5) entry to ‘calls_free_2’
65{
66 free (ptr); /* { dg-warning "double-'free' of 'ptr'" } */
~~~~~~~~~~
|
(6) first ‘free’ here
‘test_2’: events 7-10
78 calls_free_2 (ptr);
^~~~~~~~~~~~~~~~~~
|
(7) returning to ‘test_2’ from ‘calls_free_2’
[...]
82 switch (b)
~~~~~~
|
(8) following ‘default:’ branch...
83 {
84 default:
~~~~~~~
|
(9) ...to here
85 calls_free_2 (ptr);
~~~~~~~~~~~~~~~~~~
|
(10) passing freed pointer ‘ptr’ in call to ‘calls_free_2’ from ‘test_2’
‘calls_free_2’: events 11-12
64void calls_free_2 (void *ptr)
^~~~~~~~~~~~
|
(11) entry to ‘calls_free_2’
65{
66 free (ptr); /* { dg-warning "double-'free' of 'ptr'" } */
~~~~~~~~~~
|
(12) second ‘free’ here; first ‘free’ was at (6)