https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111452
Bug ID: 111452
Summary: ICE on concept with undeclared identifier and
unpermitted keyword
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: stevenxia990430 at gmail dot com
Target Milestone: ---
The following invalid program reports an internal compiler error: Segmentation
fault. Failed on gcc-trunk.
To quickly reproduce: https://gcc.godbolt.org/z/c791Wfhr4
```
#include <concepts>
template<typename T>
concept bool IsAnyOf = IsAnyOf<T>;
struct a{};
int main()
{
constexpr bool bbb = IsAnyOf<a>;
}
```
Note after removing the bool keyword, gcc no longer ICE, additionally use
another name apart from IsAnyOf in the right hand of the concept also no longer
ICE.
