On Wed, 16 Aug 2023, chenxiaolong wrote: > Thanks for the tip! Similar functions (e.g. __builtin_fabsf128 > (_Float128 a) are already supported by the compiler and can be handled > correctly, but functions that can be implemented on the LoongArch > architecture directly using the "bstrins" directive (e.g. fabsq, > copysignq, etc.) are better optimized because they generate fewer > assembly instructions. copysignq, etc.) on the LoongArch architecture > are better optimized because they generate fewer assembly instructions.
Then you should make the existing built-in functions for _Float128 or long double generate the desired instructions, rather than adding a legacy and duplicative API to a new architecture. -- Joseph S. Myers jos...@codesourcery.com
