https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86648
Bug ID: 86648
Summary: [9 Regression] ICE on class template argument
deduction
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: boris_oncev at hotmail dot com
Target Milestone: ---
On compiler explorer using the gcc (trunk) compiler I get an ICE.
https://godbolt.org/g/NPtXxH
The same code works on earlier versions 8.1 and 7.3 and Clang.
```
#include <tuple>
template <class T>
struct Foo {
static constexpr int a = 3;
};
template<class T>
struct Bar {
static constexpr std::tuple baz = { 1, 2, Foo<T>::a };
// add <int, int, int> ^
// to make it compile
};
int main() {
return std::get<2>(Bar<int>::baz);
}
```
