[PATCH] D143248: Emit CFI directives in epilogue and enable CFIFixup pass for RISC-V.

[Varun Kumar E via Phabricator via llvm-commits]

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This patch tries to add cfi directives in the epilogue which were disabled in D69723 <https://reviews.llvm.org/D69723>
Also enables CFIFixup pass which was added in D114545 <https://reviews.llvm.org/D114545>, to emit cfi_remember_state and cfi_restore_state when reordering is done.

This is a prototype on adding cfi directives in the epilogue and emitting cfi_remember_state and cfi_restore_state in RISC-V.
Kindly advise on this and future cases to be handled. I am trying the same from my end.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D143248

Files:
  llvm/lib/Target/RISCV/RISCV.h
  llvm/lib/Target/RISCV/RISCVFrameLowering.cpp
  llvm/lib/Target/RISCV/RISCVFrameLowering.h
  llvm/lib/Target/RISCV/RISCVTargetMachine.cpp
  llvm/test/CodeGen/RISCV/try_catch.ll

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