https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99028
--- Comment #2 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
At -fanalyzer-verbosity=1 and below, we only show those two events:
In function ‘add_to_trie’:
../../src/gcc/testsuite/gcc.dg/analyzer/pr99028.c:175:28: warning: dereference
of possibly-NULL ‘child’ [CWE-690] [-Wanalyzer-possible-null-dereference]
175 | child->len = root->len - i - 1;
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~
‘add_to_trie’: events 1-2
|
| 172 | child = malloc(sizeof(*child));
| | ^~~~~~~~~~~~~~~~~~~~~~
| | |
| | (1) this call could return NULL
|......
| 175 | child->len = root->len - i - 1;
| | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| | |
| | (2) ‘child’ could be NULL: unchecked
value from (1)
|
The default is -fanalyzer-verbosity=2.
It seems some tweaking is needed.
