https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107315
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|The "long double float" is |support 128bit long double
|only 64 bit on Apple |on aarch64 darwin
|Silicon MacBook |
Last reconfirmed| |2022-10-19
Status|UNCONFIRMED |NEW
Ever confirmed|0 |1
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
The ABI says long double is the same as double.
https://developer.apple.com/documentation/xcode/writing-arm64-code-for-apple-platforms
:
```
The long double type is a double precision IEEE754 binary floating-point type,
which makes it identical to the double type. This behavior contrasts to the
standard specification, in which a long double is a quad-precision, IEEE754
binary, floating-point type.
```
We could use libquadmath to add support for 128bit long double but it will take
someone to implement that.
