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

[Kito Cheng via Phabricator via cfe-commits]

kito-cheng added a comment.

I would support have `-march=help`, but I know it's really not make scene to alias `-march=help` to `--print-supported-extensions` for other targets, what about redirect that in `Driver.cpp` for RISC-V only?


Repository:
  rG LLVM Github Monorepo

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

https://reviews.llvm.org/D146054