[PATCH] D40092: [globalisel][irtranslator] Add support for atomicrmw and (strong) cmpxchg

[Daniel Sanders via Phabricator via llvm-commits]

dsanders updated this revision to Diff 123355.
dsanders added a comment.

Rename G_ATOMIC_CMPXCHG to G_ATOMIC_CMPXCHG_WITH_SUCCESS. There is a gap between
the LLVM-IR cmpxchg instruction and the SDNode that is usable in SelectionDAG
patterns. IRTranslate into a LLVM-IR-like representation. We'll then bridge the
gap in the legalizer.


https://reviews.llvm.org/D40092

Files:
  include/llvm/CodeGen/GlobalISel/IRTranslator.h
  include/llvm/CodeGen/GlobalISel/MachineIRBuilder.h
  include/llvm/Target/GenericOpcodes.td
  include/llvm/Target/TargetOpcodes.def
  lib/CodeGen/GlobalISel/IRTranslator.cpp
  lib/CodeGen/GlobalISel/MachineIRBuilder.cpp
  test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll

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