[PATCH] D69383: [RISCV] Match GCC `-march`/`-mabi` driver defaults

[Alex Bradbury via Phabricator via cfe-commits]

asb accepted this revision.
asb added a comment.

Please update the commit message to clarify the cases where we do deviate from the GCC defaults, but this looks good to me.


Repository:
  rG LLVM Github Monorepo

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https://reviews.llvm.org/D69383