https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123237
Bug ID: 123237
Summary: ICE: in write_type, at cp/mangle.cc:2744 (reflection)
Product: gcc
Version: 16.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: eczbek.void at gmail dot com
Target Milestone: ---
https://godbolt.org/z/G463dvqn3
```
template<typename T>
using A = [:^^T:];
int main() {
[]<typename T = int> requires(requires { A<T> {}; }) {}();
}
```
```
<source>:5:9: internal compiler error: in write_type, at cp/mangle.cc:2744
5 | []<typename T = int> requires(requires { A<T> {}; }) {}();
| ^
0x29279c8 diagnostics::context::diagnostic_impl(rich_location*,
diagnostics::metadata const*, diagnostics::option_id, char const*,
__va_list_tag (*) [1], diagnostics::kind)
???:0
0x291c78b internal_error(char const*, ...)
???:0
0xb17704 fancy_abort(char const*, int, char const*)
???:0
0xc77979 mangle_decl(tree_node*)
???:0
0x18aded5 decl_assembler_name(tree_node*)
???:0
0x18d78c8 assign_assembler_name_if_needed(tree_node*)
???:0
0xfba87f cgraph_node::analyze()
???:0
0xfbdf21 symbol_table::finalize_compilation_unit()
???:0
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
ASM generation compiler returned: 1
<source>:5:9: internal compiler error: in write_type, at cp/mangle.cc:2744
5 | []<typename T = int> requires(requires { A<T> {}; }) {}();
| ^
0x29279c8 diagnostics::context::diagnostic_impl(rich_location*,
diagnostics::metadata const*, diagnostics::option_id, char const*,
__va_list_tag (*) [1], diagnostics::kind)
???:0
0x291c78b internal_error(char const*, ...)
???:0
0xb17704 fancy_abort(char const*, int, char const*)
???:0
0xc77979 mangle_decl(tree_node*)
???:0
0x18aded5 decl_assembler_name(tree_node*)
???:0
0x18d78c8 assign_assembler_name_if_needed(tree_node*)
???:0
0xfba87f cgraph_node::analyze()
???:0
0xfbdf21 symbol_table::finalize_compilation_unit()
???:0
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
Execution build compiler returned: 1
Build failed
```
