[PATCH] D146054: [RISCV] Add --print-supported-extensions and -march=help support

[Kito Cheng via Phabricator via cfe-commits]

kito-cheng added a comment.

GCC ins't implement yet, but planed, so add it later I think?

@4vtomat already drop -march=help, @MaskRay did you mind take a look again?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D146054/new/

https://reviews.llvm.org/D146054