https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97293
Bug ID: 97293
Summary: ICE Segfault in C++20 mode
Product: gcc
Version: 10.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: furkanusta17 at gmail dot com
Target Milestone: ---
g++ (SUSE Linux) 10.2.1 20200825
[revision c0746a1beb1ba073c7981eb09f55b3d993b32e5c]
Following compiles with -std=c++17 but fails with 20
g++ -c -std=c++20 main.cpp
template <typename Type>
struct receiver {
struct type;
};
struct test {
void operator()(){}
};
template <typename Type>
struct receiver<Type>::type {
template <typename... Values>
using func = test;
void cleanup() noexcept {
func<>();
}
};
main.cpp: In substitution of ‘template<class Type> template<class ... Values>
using func = _func [with Values = {}; Type = Type]’:
main.cpp:17:10: required from here
main.cpp:17:10: internal compiler error: Segmentation fault
17 | func<>();
| ^
Using gcc-trunk (11.0.0 20201004) in godbolt, it seems to fail with -std=c++17
as well
https://godbolt.org/z/re7347
