[Bug c++/109884] __builtin_Xq returns _Float128 instead of __float128

[g.peterhoff--- via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109884

--- Comment #3 from g.peterh...@t-online.de ---
But these are different types (even if they are mathematically/behaviorally
equivalent)
std::is_same_v<std::float128_t, __float128> --> false