https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120887
Bug ID: 120887
Summary: internal compiler error: in
type_dependent_expression_p, at cp/pt.cc:29376 since
12.1
Product: gcc
Version: 16.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: mario.rodriguezb1 at um dot es
Target Milestone: ---
Program:
```
/* internal compiler error: Check code */
#include <expected>
int main(){
EXPECT_THROW([[maybe_unused]] (auto e = (expected<int, int>{});),
std::bad_expected_access);
}
```
Stack dump:
```
<source>:4:67: internal compiler error: in type_dependent_expression_p, at
cp/pt.cc:29376
0x2844425 diagnostic_context::diagnostic_impl(rich_location*,
diagnostic_metadata const*, diagnostic_option_id, char const*, __va_list_tag
(*) [1], diagnostic_t)
???:0
0x2866fc6 internal_error(char const*, ...)
???:0
0xaede72 fancy_abort(char const*, int, char const*)
???:0
0x184f51c walk_tree_1(tree_node**, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, false, default_hash_traits<tree_node*> >*,
tree_node* (*)(tree_node**, int*, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, false, default_hash_traits<tree_node*> >*))
???:0
0x18530d7 walk_tree_without_duplicates_1(tree_node**, tree_node*
(*)(tree_node**, int*, void*), void*, tree_node* (*)(tree_node**, int*,
tree_node* (*)(tree_node**, int*, void*), void*, hash_set<tree_node*, false,
default_hash_traits<tree_node*> >*))
???:0
0xd2b5ba instantiation_dependent_expression_p(tree_node*)
???:0
0x184f51c walk_tree_1(tree_node**, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, false, default_hash_traits<tree_node*> >*,
tree_node* (*)(tree_node**, int*, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, false, default_hash_traits<tree_node*> >*))
???:0
0x184f718 walk_tree_1(tree_node**, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, false, default_hash_traits<tree_node*> >*,
tree_node* (*)(tree_node**, int*, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, false, default_hash_traits<tree_node*> >*))
???:0
0x184fdc6 walk_tree_1(tree_node**, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, false, default_hash_traits<tree_node*> >*,
tree_node* (*)(tree_node**, int*, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, false, default_hash_traits<tree_node*> >*))
???:0
0xb93bac cp_fold_function(tree_node*)
???:0
0xbe0429 finish_function(bool)
???:0
0xc2b3ca maybe_add_lambda_conv_op(tree_node*)
???:0
0xd166e3 c_parse_file()
???:0
0xe7e469 c_common_parse_file()
???:0
```
To quickly reproduce:
https://godbolt.org/z/6PM6zfqx5
