https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122562
Bug ID: 122562
Summary: internal compiler error: Segmentation fault
cp_type_quals with std=c++20 since 10.2
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
```
#include <iostream>
enum class Errors : int {
Err_V1,
Err_V2,
};
auto operator<=>(Errors lhs, Errors rhs) noexcept = default;
```
## Stack dump
```
<source>:6:53: internal compiler error: Segmentation fault
6 | auto operator<=>(Errors lhs, Errors rhs) noexcept = default;
| ^~~~~~~
0x2903958 diagnostics::context::diagnostic_impl(rich_location*,
diagnostics::metadata const*, diagnostics::option_id, char const*,
__va_list_tag (*) [1], diagnostics::kind)
???:0
0x28f874b internal_error(char const*, ...)
???:0
0xe11b38 cp_type_quals(tree_node const*)
???:0
0xe04daf cp_build_qualified_type(tree_node*, int, int)
???:0
0xe14651 same_type_ignoring_top_level_qualifiers_p(tree_node*, tree_node*)
???:0
0xc7a9b2 defaultable_fn_check(tree_node*)
???:0
0xc118d6 cp_finish_decl(tree_node*, tree_node*, bool, tree_node*, int,
cp_decomp*)
???:0
0xd45d23 c_parse_file()
???:0
0xeb6739 c_common_parse_file()
???: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.
Compiler returned: 1
```
## To quickly reproduce:
https://godbolt.org/z/dTPq4TYTn
