[Bug c++/127668] GCC `__builtin_bitreverseg` ICEs (segfault in the C++ mangler) when applied to a dependent operand in a template signature

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127668

Drea Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-on-valid-code

--- Comment #1 from Drea Pinski <pinskia at gcc dot gnu.org> ---
```
template <typename T>
auto f (T t) -> decltype (__builtin_bswapg (t)) { return t; }

template unsigned f<unsigned> (unsigned);
```