https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119014
--- Comment #10 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Jakub Jelinek from comment #9) > The reason for extended precision by default for _Float16 (and __bf16) on > x86 (and most of other targets, I think RISC-V is an exception) is lack of > hw support, same reason as for i387 extended precision. Aarch64 has HW support just NOT with default armv8-a. armv8-a+fp16 will enable it. fp16 is also a requirement of armv9-a too.