https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120877
Bug ID: 120877
Summary: internal compiler error: Segmentation fault since 10.1
with std=c++20
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 <variant>
#include <iostream>
using var = any_name<int, bool, char>;
var v = 5;
get<std::decay_t<decltype(v)>::index_of_type<int>>(v) =5;
```
Stack dump:
```
<source>:5:53: internal compiler error: Segmentation fault
5 | get<std::decay_t<decltype(v)>::index_of_type<int>>(v) =5;
| ^
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
0xd988cb finish_call_expr(tree_node*, vec<tree_node*, va_gc, vl_embed>**, bool,
bool, int)
???:0
0xd166e3 c_parse_file()
???:0
0xe7e469 c_common_parse_file()
???:0
```
To quickly reproduce:
https://godbolt.org/z/ncMbrfbdP
