https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106530
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Compare this to how aarch64 documentation is expands on what -march= options are valid: https://gcc.gnu.org/onlinedocs/gcc/AArch64-Options.html#AArch64-Options https://gcc.gnu.org/onlinedocs/gcc/AArch64-Options.html#aarch64-feature-modifiers (plus I find long names much easier to understand than just letters too but that is a RISC-V issue overall when it comes to naming their extensions and maybe should be brought up to the specifications working group).