https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120224
Bug ID: 120224
Summary: ICE in cp_parser_expression_statement with ambiguous
std::void_t overload resolution since 14.1 until trunk
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: ---
GCC triggers an internal compiler error when resolving a templated function
```
#include <iostream>
template <typename> using Void_t = void;
template <typename T>
void my_template(std::void_t<decltype(sizeof(T))>* val);
template <typename T>
void my_template(Void_t<decltype(++T{})>*){
}
int main() {
my_template<int>(nullptr);
}
```
```
<source>: In function 'int main()':
<source>:9:29: internal compiler error: in cp_parser_expression_statement, at
cp/parser.cc:13601
9 | my_template<int>(nullptr);
| ^
0x2287465 diagnostic_context::diagnostic_impl(rich_location*,
diagnostic_metadata const*, diagnostic_option_id, char const*, __va_list_tag
(*) [1], diagnostic_t)
???:0
0x22989b6 internal_error(char const*, ...)
???:0
0x7d443e fancy_abort(char const*, int, char const*)
???:0
0x981ebd c_parse_file()
???:0
0xa8b739 c_common_parse_file()
???:0
```
Happens since 14.1 until trunk
https://gcc.godbolt.org/z/zfcrEvKqq
