andishgar opened a new issue, #49179: URL: https://github.com/apache/arrow/issues/49179
### Describe the enhancement requested `arrow::util::Float16` is a software simulation of the IEEE 754 `float16` (2008) standard. However, some architectures provide hardware support, such as [ARM](https://developer.arm.com/documentation/100067/0610/Other-Compiler-specific-Features/Half-precision-floating-point-data-types) and [x86_64 AVX512-FP16](https://www.intel.com/content/www/us/en/content-details/669773/intel-avx-512-fp16-instruction-set-for-intel-xeon-processor-based-products-technology-guide.html) microarchitectures. Furthermore, [GCC](https://gcc.gnu.org/onlinedocs/gcc/Half-Precision.html) and [Clang](https://clang.llvm.org/docs/LanguageExtensions.html#half-precision-floating-point) provide support via `_Float16`. However, there is currently no support in [MSVC](https://github.com/microsoft/STL/issues/2956#issuecomment-1405936780). Additionally, I found that [Google Highway](https://github.com/google/highway/blob/52a2d98d07852c5d69284e175666e5f8cc7d8285/hwy/base.h#L1284-L1425) provides such support. @Kou, do you think it is worth investigating further and enabling this for Arrow? ### Component(s) C++ -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
