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

[Sam Elliott via Phabricator via cfe-commits]

lenary updated this revision to Diff 227284.
lenary added a comment.

- More conservative march/mabi defaults on riscv-unknown-elf
- Add clang release notes about this change to -march/-mabi


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D69383/new/

https://reviews.llvm.org/D69383

Files:
  clang/docs/ReleaseNotes.rst
  clang/lib/Driver/ToolChains/Arch/RISCV.cpp
  clang/lib/Driver/ToolChains/Arch/RISCV.h
  clang/lib/Driver/ToolChains/Gnu.cpp
  clang/test/Driver/riscv-abi.c
  clang/test/Driver/riscv-gnutools.c

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