[Bug c++/118192] ICE: in build_data_member_initialization, at cp/constexpr.cc:453

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118192

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #3)
> Better reduced testcase:
> ```
> template<int> struct A
> {
>   int i{};
>   A() = delete;
>   constexpr A(int) : A() {}
> };
> 
> constexpr A<0> a{0};
> ```

Sorry:
```
template<int> struct A
{
  int i{};
  A() = delete;
  constexpr A(int) : A{} {}
};

constexpr A<0> a{0};
```


The {} for the delegated constructor is needed to get the ICE before GCC 7.