On Fri, 12 Mar 2021 at 09:58, Kito Cheng <kito.ch...@gmail.com> wrote: > > Hi Jonathan: > > > I would forget about the decimal types. I thought you were just > > talking about _Float16? > > > > You will need to decide on a mangling for it in C++, which should be > > co-ordinated with other compilers that are likely to support the type. > > You could mangle it as "u8_Float16" which is in the namespace reserved > > for vendor-extensions but if you wanted to assign a new shorter, > > non-extension then it should be discussed at > > https://github.com/itanium-cxx-abi/cxx-abi/issues (which will need to > > happen anyway if std::float16 is expected to go into the C++ > > standard). > > > > Are you planning to support this in Clang too? > > clang already supports _Float16 on C++ for a while, but only very few targets, > ARM, AArch64, SPIR and AMDGPU. > > > That's documented at > > http://itanium-cxx-abi.github.io/cxx-abi/abi.html#mangling-builtin > > Seems like it is already defined for _FloatN types, and clang already > follow that. > > ::= DF <number> _ # ISO/IEC TS 18661 binary floating point type _FloatN (N > bits) > > Thank you, Jonathan, I'll start to add that to C++ :)
Oh good, that makes it easy then!
