[Bug target/115054] __float128 and _Float16 use incorrect ABI on x86-64 MinGW

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115054

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Does Microsoft's abi documents this case?

If not then gcc is as correct here as clang is.