https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107366
--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> ---
Happens for the following location:
(gdb) p /x loc
$7 = 0x80000008
when I expand it:
(gdb) p x
$8 = {
file = 0x0,
line = 0,
column = 0,
data = 0x7ffff7769480,
sysp = false
}
it likely corresponds to (5):
gcc -Wfatal-errors pr107366.c -c -fanalyzer
In function ‘hwloc_apply_diff_one’:
cc1: warning: use of uninitialized value ‘obj_attr_2_0_0’ [CWE-457]
[-Wanalyzer-use-of-uninitialized-value]
‘hwloc_apply_diff_one’: events 1-4
|
|pr107366.c:10:41:
| 8 | switch (hwloc_apply_diff_one_diff_0_0)
| | ~~~~~~
| | |
| | (3) following ‘true’ branch...
| 9 | case HWLOC_TOPOLOGY_DIFF_OBJ_ATTR: {
| | ~~~~
| | |
| | (4) ...to here
| 10 | hwloc_topology_diff_obj_attr_type_t obj_attr_2_0_0;
| | ^~~~~~~~~~~~~~
| | |
| | (1) region created on
stack here
| | (2) capacity: 4 bytes
|
‘hwloc_apply_diff_one’: event 5
|
|cc1:
| (5): use of uninitialized value ‘obj_attr_2_0_0’ here
|
