https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120883
Bug ID: 120883
Summary: internal compiler error: in write_type, at
cp/mangle.cc:2687 since 13.1
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: ---
Similar to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120275:
Program:
```
#include <tuple>
int main() {
apply(
[](auto&&... a) {
decltype(auto) l = {a...};
return l;
},
std::make_tuple(1, 2.3, '4')
);
return 0;
}
```
Stack dump:
```
In file included from
/opt/compiler-explorer/gcc-trunk-20250630/include/c++/16.0.0/tuple:43,
from <source>:2:
/opt/compiler-explorer/gcc-trunk-20250630/include/c++/16.0.0/bits/invoke.h:62:5:
internal compiler error: in write_type, at cp/mangle.cc:2687
62 | __invoke_impl(__invoke_other, _Fn&& __f, _Args&&... __args)
| ^~~~~~~~~~~~~
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
0xc3dda9 mangle_decl(tree_node*)
???:0
0x1827ab5 decl_assembler_name(tree_node*)
???:0
0x1850d97 assign_assembler_name_if_needed(tree_node*)
???:0
0xf521bf cgraph_node::analyze()
???:0
0xf55791 symbol_table::finalize_compilation_unit()
???:0
```
To quickly reproduce:
https://godbolt.org/z/3aGnzjzve
