[PATCH] D158956: [RISCV] Initial ISel support for the experimental zacas extension

[Yingwei Zheng via Phabricator via llvm-commits]

dtcxzyw created this revision.
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This patch implements the v1.0-rc3 draft extension based on AArch64's version.

It is a working-in-progress patch.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D158956

Files:
  llvm/lib/Target/RISCV/RISCVExpandAtomicPseudoInsts.cpp
  llvm/lib/Target/RISCV/RISCVISelLowering.cpp
  llvm/lib/Target/RISCV/RISCVInstrInfoA.td
  llvm/lib/Target/RISCV/RISCVRegisterInfo.td
  llvm/test/CodeGen/RISCV/atomic-cmpxchg-branch-on-result.ll
  llvm/test/CodeGen/RISCV/atomic-cmpxchg-flag.ll
  llvm/test/CodeGen/RISCV/atomic-cmpxchg.ll

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