https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93773
--- Comment #5 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Specifically:
+--> ‘make_assignable’: events 5-6
|
| 5352 | make_assignable(INSTRUCTION *ip)
| | ^~~~~~~~~~~~~~~
| | |
| | (5) entry to ‘make_assignable’
| 5353 | {
| 5354 | switch (ip->opcode) {
| | ~~~~~~
| | |
| | (6) following ‘default:’ branch...
|
‘make_assignable’: event 7
|
|cc1:
| (7): ...to here
|
<------+
|
‘mk_getline’: events 8-9
|
| 6025 | tp = make_assignable(var->lasti);
| | ^~~~~~~~~~~~~~~~~~~~~~~~~~~
| | |
| | (8) return of NULL to ‘mk_getline’ from
‘make_assignable’
|......
| 6029 | if (tp->opcode == Op_push_lhs
| | ~~~~~~~~~~
| | |
| | (9) dereference of NULL ‘tp’
(albeit where event 7 doesn't have a source location, but is a "return NULL")
