Full Support for IEEE 754-2008, ISO/IEC TR 18037, ISO/IEC 10967, ISO/IEC 11404 compliance and implementation

[sirinath]

Is it possible to have full support for IEEE 754-2008, ISO/IEC TR 18037, ISO/IEC 10967, ISO/IEC 11404 compliance and implementation.

A starting point would ne IEEE 754 Quant and decimal types.

[jiahao]

Please edit the issue to provide a specific list of features you are interested to have supported. A laundry list of acronyms does not provide sufficient context.

A starting point would ne IEEE 754 Quant and decimal types.

I assume you mean quad-precision floating point. This was discussed in #3467 and was not implemented due to lack of native hardware support. There is also no hw support for IEEE 754-2008 decimals.

[sirinath]

There are 4 binery and 3 deciam formats.

[sirinath]

Also and extended precision on top of the basic precitions formats

[staticfloat]

We have support for hardware-supported types, as @jiahao pointed out we have chosen not to support specific higher precision types, and instead use the gmp library to provide arbitrary-precision numeric types. Check out the arbitrary precision arithmetic section of the manual for more information on those types.

[staticfloat]

Additionally, it looks like LLVM itself does not natively support floating decimal instructions, which means that we will rely on the above-mentioned arbirary precision arithmetic libraries.

[jiahao]

I looked up a few of these acronyms and they turn out to be very long ISO standards.

Without more specifics, this is pretty much all we can say about the matter.