Bug path

test_1
‘test_1’: events 1-2
99void test_1 (const char *str)
^~~~~~
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(1) entry to ‘test_1’
100{
101 base_obj *obj = new_string_obj (str);
~~~~~~~~~~~~~~~~~~~~
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(2) calling ‘new_string_obj’ from ‘test_1’
new_string_obj
‘new_string_obj’: events 3-4
69base_obj *new_string_obj (const char *str)
^~~~~~~~~~~~~~
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(3) entry to ‘new_string_obj’
[...]
75 = (string_obj *)alloc_obj (&str_type, sizeof (string_obj) + len + 1);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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(4) calling ‘alloc_obj’ from ‘new_string_obj’
alloc_obj
‘alloc_obj’: events 5-9
59base_obj *alloc_obj (type_obj *ob_type, size_t sz)
^~~~~~~~~
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(5) entry to ‘alloc_obj’
60{
61 base_obj *obj = (base_obj *)malloc (sz);
~~~~~~~~~~~
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(6) allocated here
62 if (!obj)
~
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(7) assuming ‘obj’ is non-NULL
(8) following ‘false’ branch (when ‘obj’ is non-NULL)...
63 return NULL;
64 obj->ob_type = ob_type;
~~~~~~~~~~~~~~~~~~~~~~
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(9) ...to here
‘new_string_obj’: event 10
75 = (string_obj *)alloc_obj (&str_type, sizeof (string_obj) + len + 1);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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(10) returning to ‘new_string_obj’ from ‘alloc_obj’
‘test_1’: events 11-12
101 base_obj *obj = new_string_obj (str);
^~~~~~~~~~~~~~~~~~~~
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(11) returning to ‘test_1’ from ‘new_string_obj’
102 unref (obj);
~~~~~~~~~~~
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(12) calling ‘unref’ from ‘test_1’
unref
‘unref’: events 13-15
89void unref (base_obj *obj)
^~~~~
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(13) entry to ‘unref’
90{
91 if (--obj->ob_refcnt == 0) /* { dg-bogus "dereference of uninitialized pointer 'obj'" } */
~
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(14) following ‘false’ branch...
[...]
97}
~
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(15) ...to here
‘test_1’: events 16-17
102 unref (obj);
^~~~~~~~~~~
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(16) returning to ‘test_1’ from ‘unref’
103} /* { dg-bogus "leak" "" { xfail *-*-* } } */
~
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(17) ‘obj’ leaks here; was allocated at (6)